WO2020125719A1

WO2020125719A1 - Oscillation angle adjusting mechanism

Info

Publication number: WO2020125719A1
Application number: PCT/CN2019/126670
Authority: WO
Inventors: 熊飞彪
Original assignee: 熊飞彪
Priority date: 2018-12-20
Filing date: 2019-12-19
Publication date: 2020-06-25

Abstract

An oscillation angle adjusting mechanism, comprising a support base (005), a connection plate member and a connection plate movement control device; the connection plate member is sleeved on a motion column (0071) and is rotatable around the motion column (0071), and the connection plate member comprises one connection plate (201); more than two fixing columns (101, 102) are fixed on the support base (005), one fixing column connection hole (2012, 2013) being provided on the connection plate (201) for each of the fixing columns (101, 102); the connection plate member can be sleeved on the corresponding fixing column (101, 102) by means of the respective fixing column connection hole (2012, 2013) and rotates around said column respectively, so as to achieve oscillation; and the connection plate movement control device controls the connection plate (201) to move up and down, so as to switch the fixing columns (101, 102) around which the connection plate member rotates, thereby switching between more than two oscillation angles. An electric fan and an electric heater which have the oscillation angle adjusting mechanism are able to switch between two or more oscillation angles, and are able to meet people's actual needs.

Description

Shaking head angle adjusting mechanism

Technical field

The invention relates to the field of electric fans and electric heaters, in particular to a shaking head angle adjusting mechanism used for electric fans and electric heaters.

Background technique

Existing electric fans that can shake their heads, whether they are ordinary fans or spray fans, can be divided into two types according to the power source that realizes the function of shaking their heads. One is the gearbox transmission type, which uses a motor that drives the rotation of the fan blades as power The power source is driven by the gear box to drive the shaking head mechanism to shake the head; the other is an independent synchronous motor type, that is, an independent synchronous motor is used as a power source to drive the shaking head mechanism to shake the head. Existing oscillating head electric heaters, that is, small solar electric heaters that oscillate their heads, usually use a synchronous motor to drive the oscillating head mechanism to achieve oscillating heads, and the structure for implementing oscillating heads is the same as that of an independent synchronous motor type electric fan.

As shown in Figure 1, it is the head of a gear box transmission type electric fan with a shaking head. A gear box 002 is fixed behind the motor 001, and an output shaft (not shown) protrudes from the lower end of the gear box 002, and an eccentric block 003 is fixed at the lower end of the output shaft (some documents refer to this structure as Eccentric block, such as the Chinese invention patent with authorization announcement number CN 2587702Y, and some documents refer to the structure as a crank, such as the two Chinese utility model patents with authorization announcement numbers CN 204755361 U and CN 2264268Y), under the eccentric block 003 It is connected to one end of the connecting rod 004, and the connecting rod 004 can rotate around its connection with the eccentric block 003. The other end of the connecting rod 004 is sleeved on a post fixed on the support base 005, and can rotate around the post. When shaking the head, the power of the motor 001 is transmitted to the output shaft of the gear box through the gear mechanism in the gear box 002, so that the output shaft rotates, and then drives the eccentric block 003 to rotate together. Due to the pulling effect of the connecting rod 004, the motor 001 of the electric fan swings back and forth around the support tube 006. The support tube 006 is fixed on the support base 005, and it is into which the support column of the motor 001 is inserted.

The independent synchronous motor type fan and the gear box transmission type fan are only different in the power source to realize the shaking head function. The structure of the real shaking head function is the same, that is, they are executed by the eccentric block and the connecting rod. Shaking his head. For convenience of expression, the present invention collectively refers to the shaft connected to the eccentric block as the shaking head rotating shaft. For the gear box transmission type electric fan, it refers to the output shaft at the lower end of the gear box. For the independent synchronous motor type electric fan and the shaking head electric heater , It refers to the output shaft of the synchronous motor.

As shown in Figures 2 and 3, there are roughly two ways to connect the eccentric block and the connecting rod. One is as shown in FIG. 2, a small truncated cylinder 0031 is provided below the eccentric block 003, a screw hole matching with the screw 007 is opened at the bottom of the cylinder 0031, and a connecting rod 004 is correspondingly provided with a The small truncated round tube 0041, the round tube 0041 is sleeved on the cylinder 0031, and the screw 007 is pressed against the round tube 0041. Another connection method of the eccentric block and the connecting rod is shown in FIG. 3, and the eccentric block 003 is provided with a screw hole matching with the screw 007 at the end connected to the connecting rod 004. The screw 007 is a screw with a cylinder, that is, a piece of cylinder 0071 is provided at a position of the screw 007 near its head. The connecting rod 004 has only one round hole 0043 at the end connected to the eccentric block 003, and the connecting rod 004 is sleeved on the cylinder 0071 of the screw 007 through the round hole 0043, and the screw 007 is fixed on the eccentric block 003. For convenience of expression, the present invention will collectively refer to the columns fixed on the eccentric block for the connecting rod or the connecting plate member of the present invention to rotate around, and are collectively referred to as moving columns. For FIG. 2, the moving column refers to the cylinder 0031 of the eccentric block 003, and for FIG. 3, the moving column refers to the cylinder 0071 of the screw 007.

Similarly, as shown in Figures 2 and 3, there are roughly two ways to connect the support base to the connecting rod. One is as shown in FIG. 2, the connecting rod 004 is provided with a small truncated tube 0042 at the end connected to the support base 005, and the top of the mounting post 009 of the support base 005 is correspondingly provided with a small truncated cylinder 0091. Screw holes to match with screws 008. The round tube 0042 of the connecting rod 004 is sleeved on the cylinder 0091 on the top of the mounting post 009, and the screw 008 is pressed against the round tube 0042. Another connection method of the support base and the connecting rod is as shown in FIG. 3, the top of the mounting post 009 is provided with a screw hole for matching with a cylindrical screw 008, and the connecting rod 004 has only one circle at the end connected to the support base 005 Hole 0044, the screw 008 is fixed on the top of the mounting post 009, and the connecting rod 004 is sleeved on the cylinder 0801 of the screw 008 through the round hole 0044. For convenience of expression, in the present invention, the post fixed on the support base, for the connecting rod or the connecting plate member in the present invention, is rotated around it is collectively referred to as a fixed post. As shown in FIG. 2, the fixed post refers to the cylinder 0901 on the top of the mounting post 009, and for FIG. 3, the fixed post refers to the cylinder 0801 of the screw 008.

The shaking angle of the electric fan refers to the swing angle of the electric axis of the electric fan during the shaking process of the electric fan. The shaking angle of existing electric fans and heaters is single and fixed, usually a value between 80 degrees and 100 degrees. But in life, people often need different angles of shaking their heads according to different situations. Therefore, the existing electric fans and heaters with a single shaking angle cannot fully meet people's needs.

Referring to FIG. 1, in order to realize the shaking function of the electric fan, the shaking shaft rotating shaft, the fixed column, the support tube, and the moving column must be parallel to each other. Set a plane perpendicular to the central axis of the support tube, called the projection plane. Projecting the central axis of the support tube, the central axis of the fixed column, the central axis of the rotating axis of the shaking head, and the central axis of the moving column onto the projection surface, four projection points can be obtained, with A, B, C, and D representing the support, respectively A point obtained by projecting the central axis of the tube, the central axis of the fixed column, the central axis of the rotating shaft of the shaking head, and the central axis of the moving column onto the projection surface. In this way, only by analyzing the movement characteristics of the four points A, B, C, and D during the shaking process of the electric fan, the movement law of the shaking head of the electric fan can be grasped. The reason why the electric fan can shake its head is to use the instability of the quadrilateral, which takes the four points A, B, C and D as its four vertices. When the electric fan shakes its head, A and B will be fixed, point C reciprocates along a circular arc centered on point A, and point D reciprocates along a circular arc centered on point B, and, relative As for point C, point D also makes circular motion around point C. Let |AB|, |CD|, |AC|, |BD| represent the distance between A and B, the distance between C and D, the distance between A and C, and the distance between B and D, then just change the four Any one or more of the distances can change the shaking process of the electric fan. Based on this recognition, the prior art provides some solutions for adjusting the angle of the shaking head of the electric fan by changing the above four distances. For example, the Chinese invention patent application with the publication number CN101749263A, the Chinese invention patent with the publication number CN1220828C and the Chinese utility model patent with the publication number CN201982339U are all adjusted by changing the |AB| value to adjust the angle of the electric fan; Two Chinese utility model patents, numbered CN201546985U and CN203335443U, adjust the angle of the electric fan shaking head by changing the |CD| value. However, these technical solutions for adjusting the shaking angle of the electric fan have the drawback of difficult operation. This is because in these schemes for adjusting the shaking angle of the electric fan, the process of adjusting the shaking angle often requires changing the positions of C and D. Corresponding to the actual electric fan, the process of adjusting the angle of the shaking head often needs to change the swing position of the motor around the support tube, and the amount of change in this swing position will vary depending on the timing of adjusting the angle of the shaking head. When adjusting from a large shaking head angle to a small shaking head angle, and the adjustment timing is precisely when the motor swings around the support tube to the most lateral position, at this time, adjusting the shaking head angle means that the motor swings around the support tube. Large changes will occur, which requires external force to achieve, so there will be problems of adjustment difficulties. In addition, the existing technical solutions for adjusting the angle of shaking the head need to perform the adjustment operation when the electric fan is in a state where the shaking of the head is stopped, which brings great inconvenience to the use. It is precisely because of the existing technical solutions for adjusting the shaking head angle that there are many technical defects, so it is difficult to find electric fans and heaters that can adjust the shaking head angle on the market.

Summary of the invention

The invention aims to solve the problem that the existing oscillating head electric fan and electric heater only have a single oscillating angle. To this end, the technical problem to be solved by the present invention is to provide a shaking head angle adjustment mechanism, an electric fan and an electric heater with the mechanism can switch between two or more shaking head angles, which can better meet people's actual use needs .

The technical solution adopted by the present invention to solve its technical problems is: a shaking head angle adjustment mechanism, including a supporting base, a connecting plate, and a connecting plate movement control device; more than two fixed columns are fixed on the supporting base; the connection The plate is set on the moving column and can rotate around the moving column. The connecting plate includes a connecting plate; the connecting plate is provided with a fixed column connecting hole for each fixed column; the connecting plate can pass through each fixed column The connection hole is sleeved on the corresponding fixed column and rotates around it to realize shaking the head; the connecting plate movement control device controls the moving of the connecting plate up and down to switch the fixed column around which the connecting plate member rotates, so as to achieve more than 2 shaking heads Switch between angles.

Preferably, the number of the fixed posts is 2 to 4; the connecting plate movement control device controls the moving of the connecting plate up and down to switch the fixed posts around which the connecting plate rotates, so as to achieve a swing angle of 2 to 4 To switch between.

Preferably, the connecting plate is further provided with a moving post connecting hole or a connecting tube is fixed, and the connecting plate is sleeved on the moving post through the moving post connecting hole or the connecting tube.

The preferred structural solutions of the support base and the connecting plate include the following:

A preferred structural solution is that a first fixed column and a second fixed column are fixed on the support base; a small rod is connected to the lower end of the second fixed column, and is fixed on the support base through the small rod; the second fixed The column is located above the first fixed column, and the small rod and the first fixed column are at corresponding height positions; the connecting plate is provided with a track groove, and the track groove cooperates with the small rod so that the small rod does not The connection plate is prevented from rotating around the first fixed column.

Preferred structural solution two: a first fixed column and a second fixed column are fixed on the support base, the second fixed column is located above the side of the first fixed column; the upper end of the second fixed column is connected to a horizontal horizontal fixed column One end of the rod is fixedly connected, and is fixed on the support base through the fixing column connecting rod.

In the above-mentioned preferred structural solutions 1 and 2 of the support base and the connecting plate, the upper end of the first fixed column and the lower end of the second fixed column are each provided with a chamfered section.

Preferred structural solution three is that a first fixed post, a second fixed post and a third fixed post are fixed on the support base; a first thin rod is connected to the lower end of the second fixed post and is fixed on the support by the first thin rod On the seat; a second thin rod is connected to the lower end of the third fixing column, and is fixed on the support base through the second small rod; the third fixing column is located above the second fixing column, and the second fixing column is located on the first The upper side of the fixed column; the connection plate is also provided with a first track groove and a second track groove; the first track groove cooperates with the first small rod, so that the first small rod does not hinder the connection plate around the first A fixed column rotates; the second track groove cooperates with the second small rod so that the second small rod does not hinder the connection plate from rotating around the first fixed column and around the second fixed column.

Preferred structural solution four: a first fixing column, a second fixing column and a third fixing column are fixed on the support base; a small rod is connected to the lower end of the second fixing column, and is fixed on the support base through the small rod; The upper end of the third fixed column is fixedly connected to one end of a horizontally fixed fixed column connecting rod, and is fixed on the support base by the fixed column connecting rod; the third fixed column is located above the side of the second fixed column, the second The fixed column is located above the first fixed column; the connecting plate is also provided with a track groove, and the track groove cooperates with the small rod so that the small rod does not prevent the connecting plate from rotating around the first fixed column.

In the preferred structural solutions 3 and 4 of the support base and the connecting plate, the upper end of the first fixing post, the upper and lower ends of the second fixing post, and the lower end of the third fixing post are each provided with a chamfer. Into a chamfered section.

The preferred structural solutions of the connection board movement control device include the following:

Preferred structural solution one, the connection board movement control device includes a connection board clamping unit, a connection unit, a movement guide unit, a control unit and a clamping unit; the lower end of the connection unit is connected to the connection board clamping unit, connected The upper end of the unit is connected to the control unit; the clamping unit cooperates with the control unit, so that the control unit can be maintained at more than two determined height positions; in the process of shaking the head, by manipulating the control unit, the connection can be sequentially driven Unit, connecting plate clamping unit, and then holding the connecting plate to move up and down to achieve the switching of the fixed column around which the connecting plate rotates; the moving guide unit can start up and down when the connecting unit moves up and down with the control unit To its mobile-oriented role.

Further preferably, the connecting plate clamping unit is a connecting plate clamping member, and the connecting plate clamping member includes an upper clamping plate, a lower clamping plate and a connecting portion; the upper clamping plate and the lower clamping One end of the board is fixedly connected to the connection part, and a gap for the connection board to pass through is formed between the upper clamping board and the lower clamping board; the connection board clamping member is fixedly connected to the connection unit through the connection part thereof.

Further preferably, the moving guide unit has a guide tube hole, and the connecting unit is a connecting rod; the connecting rod is installed in the guide tube hole, and the connecting rod can move up and down in the guide tube hole, but cannot rotate ; The connecting rod located above the guide tube hole is also provided with a blocking portion, which is used to prevent the upper end of the connecting rod from entering the guide tube hole.

Or, the moving guide unit has a guide tube hole, and the connection unit is installed in the guide tube hole; the connection unit includes a connection spring, an upper connection bar, and a lower connection bar, and the upper end and the upper side of the connection spring The connecting rod is connected, and the lower end of the connecting spring is connected to the lower connecting rod; the upper connecting rod is provided with a limiting protrusion, and the corresponding limiting groove and guide groove are provided on the inner wall of the guide tube hole; or, the upper The connecting rod is provided with a limiting groove and a guide groove, and the inner wall of the guide tube hole is provided with a corresponding limiting convex portion; the limiting convex portion cooperates with the limiting groove, so that the upper connecting rod can only be determined in one Move up and down within the height range of the; the guide groove is used to guide the limit protrusion into the limit groove; the lower connecting rod can move up and down in the guide tube hole, but cannot rotate.

Preferred structural solution two, the connecting plate movement control device includes an eccentric block, an eccentric block clamping unit, a connecting unit, a movement guide unit, a steering unit, and a clamping unit; the lower end of the connecting unit is connected to an eccentric block clamping unit, The upper end of the connection unit is connected to the control unit; the clamping unit cooperates with the control unit, so that the control unit can be maintained at more than two determined height positions; in the process of shaking the head, by operating the control unit, it can be driven sequentially The connecting unit and the eccentric block clamping unit hold the eccentric block to move up and down, and then drive the connecting plate to move up and down together to realize the switching of the fixed column around which the connecting plate rotates; the moving guide unit follows the control in the connecting unit The unit can play a role in guiding the movement of the unit up and down.

It is further preferred that the eccentric block is movably connected to the rotating shaft of the shaking head, and the eccentric block can move up and down along the rotating shaft of the shaking head while rotating with the rotating shaft of the shaking head.

Further preferably, the eccentric block clamping unit has a "U" shaped clamping opening, and the eccentric block is provided with a clamping portion matching the "U" shaped clamping opening, the clamping portion Dumbbell-shaped.

Further preferably, the moving guide unit has a guide tube hole, and the connecting unit is a connecting rod; the connecting rod is installed in the guide tube hole, and the connecting rod can move up and down in the guide tube hole; The connecting rod above the guide pipe hole is also provided with a blocking part for preventing the upper end of the connecting rod from entering the guide pipe hole.

Or, the moving guide unit has a guide tube hole, and the connection unit is installed in the guide tube hole; the connection unit includes a connection spring, an upper connection bar, and a lower connection bar, and the upper end and the upper side of the connection spring The connecting rod is connected, and the lower end of the connecting spring is connected to the lower connecting rod; the upper connecting rod is provided with a limiting protrusion, and the corresponding limiting groove and guide groove are provided on the inner wall of the guide tube hole; or, the upper The connecting rod is provided with a limiting groove and a guide groove, and the inner wall of the guide tube hole is provided with a corresponding limiting convex portion; the limiting convex portion cooperates with the limiting groove, so that the upper connecting rod can only be determined in one Moves up and down within the height range of the; the guide groove is used to guide the limiting protrusion into the limiting groove.

Preferred structural solution three, the connecting plate movement control device includes an eccentric block, a shaking head rotating shaft, a control unit and a clamping unit; the lower end of the shaking head rotating shaft is fixedly connected to the eccentric block, and the upper end vertically penetrates the gear box, It is connected with the control unit; the clamping unit cooperates with the control unit, so that the control unit can be maintained at more than two determined height positions; the control unit can drive the rotating axis of the shaking head and the eccentric block up and down during the shaking process The movement further drives the connecting plate to move up and down together to realize the switching of the fixed post around which the connecting plate rotates.

According to a preferred structural solution 4, the connecting plate movement control device adds a connecting unit and a moving guide unit on the basis of the preferred structural solution three, the lower end of the connecting unit is connected to the upper end of the shaking head rotating shaft, and the upper end of the connecting unit is connected to the lower end of the control unit Connected; the control unit can drive the connecting unit, the rotating shaft of the shaking head, and the eccentric block to move up and down during the shaking process, which in turn drives the connecting plate to move up and down together to achieve the switching of the fixed column around which the connecting plate rotates; The guiding unit can play the role of guiding the connecting unit during the up and down movement of the connecting unit with the operating unit.

It is further preferred that the connecting unit is a connecting piece, the upper end of the connecting piece can be rotatably connected to the control unit independently, and the lower end of the connecting piece can be independently rotatably connected to the upper end of the shaking shaft; the moving guide unit is fixed above the gear box cover, The movement guide unit cooperates with the connecting piece so that the connecting piece can move up and down in the vertical direction, but cannot rotate.

Or, the moving guide unit has a guide tube hole, and the connection unit is installed in the guide tube hole; the connection unit includes a connection spring, an upper connection rod, and a lower connection member, and the upper end and upper side of the connection spring The connecting rod is connected, and the lower end of the connecting spring is connected to the lower connector; the upper connecting rod is provided with a limiting protrusion, and the inner wall of the guide tube hole is provided with a corresponding limiting groove and a guide groove; or, the upper The connecting rod is provided with a limiting groove and a guide groove, and the inner wall of the guide tube hole is provided with a corresponding limiting convex portion; the limiting convex portion cooperates with the limiting groove, so that the upper connecting rod can only be determined in one Move up and down within the height range of the; the guide groove is used to guide the limit protrusion into the limit groove; the lower connector can move up and down in the guide tube hole, but cannot rotate; the lower end of the lower connector The upper end of the rotating shaft of the shaking head can be rotatably connected independently.

For preferred structural solutions 3 and 4 of the connecting plate movement control device, the shaking head rotating shaft passes through the center of the shaking head gear; the shaking head rotating shaft and the shaking head gear are fixedly connected, and the shaking head gear can always move up and down with the shaking head rotating shaft Maintain the meshing state with the transmission gear; or, the oscillating head rotating shaft and the oscillating head gear are movably connected, the oscillating head gear cannot be moved in the vertical direction, and the oscillating head rotating shaft can move up and down in the vertical direction while rotating with the oscillating head gear.

The preferred structural solutions for the movement control device of the connection board are one to four, wherein the clamping unit is a gear tube fixed on the motor protective shell, and the control unit is a control member, and the control member is installed on the In the gear tube; the control member is provided with a gear post, and a corresponding gear groove is provided on the inner wall of the gear tube; or, a gear post is provided on the inner wall of the gear tube, the manipulation A corresponding gear groove is provided on the piece; the gear post cooperates with the gear groove, so that the control piece can be maintained at more than two determined height positions.

Alternatively, the locking unit is a gear tube fixed on the motor protective shell, and more than two annular gear grooves are provided on the inner wall of the gear tube; the control unit is installed in the gear tube, and It can move up and down in the gear tube; the control unit includes a control piece, a gear spring and two steel balls; the control piece is provided with a lateral through hole, the gear spring and the two steel balls are installed in In the lateral through hole, two steel balls are located at both ends of the gear spring respectively; the annular gear groove cooperates with the steel ball and the gear spring, so that the control member can be maintained at more than two determined height positions.

Beneficial effects of the present invention: 1. The electric fan and heater with the shaking head angle adjustment mechanism of the present invention can be switched between two or more shaking head angles, which can better meet the actual use needs of people. 2. In the process of switching the angle of the electric fan or electric heater, the shaking head angle adjustment mechanism of the present invention does not need to change the swinging position of the motor or the heating main structure around the support tube forcefully. Therefore, as described in the background art Difficult to adjust. 3. The shaking head angle adjustment mechanism of the present invention performs adjustment operation while the electric fan and electric heater are in shaking state, so it is very convenient to use. 4. Different from the prior art to adjust the shaking head angle by changing |AB|, |CD| separately, the shaking head angle adjustment mechanism of the present invention can change |AB| and |BD| at the same time, therefore, the present invention provides for adjusting the shaking head angle New method. 5. The shaking head angle adjustment mechanism of the present invention also has the advantages of simple structure and low manufacturing cost. 6. The shaking head angle adjustment mechanism of the present invention can also be used on devices similar to electric fans, electric heaters and the like that need to adjust the shaking head angle.

BRIEF DESCRIPTION

FIG. 1 is a schematic diagram of a head structure of an existing gear box transmission type movable head electric fan.

FIG. 2 is a schematic structural diagram of a connection manner of a support base, a connecting rod, and an eccentric block of an existing electric fan with a movable head.

FIG. 3 is a schematic structural diagram of another connection mode of a supporting base, a connecting rod, and an eccentric block of an existing electric fan with a movable head.

FIG. 4 is a schematic structural diagram of an electric fan shaking head angle adjustment mechanism (two-stage adjustment) assembled on an electric fan in Embodiment 1. FIG.

FIG. 5 is an exploded schematic view of the structure of the support base, connecting plate, and eccentric block in FIG. 4.

FIG. 6 is a top view of the connecting plate in FIG. 4.

7 is a partial structural diagram of the connection board movement control device in FIG. 4.

FIG. 8 is a schematic cross-sectional view of the operating member in FIG. 7.

9 is a schematic structural view of the gear box base in FIG. 4.

Fig. 10 is a schematic structural view of a motor protective case.

11 is another schematic view of the structure of the operating member and the connecting rod in Embodiment 1. FIG.

FIG. 12 is a schematic cross-sectional view of the operating member in FIG. 11.

13 is a structural schematic view of a support base and a connecting plate of an electric fan shaking head angle adjustment mechanism (second gear adjustment) in Embodiment 2. FIG.

14 is a schematic structural view of a support base and a connecting plate of an electric fan shaking head angle adjustment mechanism (three-speed adjustment) in Embodiment 3. FIG.

15 is a top view of the connecting plate in FIG. 14.

16 is a structural schematic diagram of a support base and a connecting plate of an electric fan shaking head angle adjustment mechanism (three-speed adjustment) in Embodiment 4. FIG.

Fig. 17 is a top view of the connecting plate in Fig. 16.

18 is a schematic structural view of a support base and a connecting plate of an electric fan shaking head angle adjustment mechanism (four-speed adjustment) in Embodiment 5. FIG.

FIG. 19 is a top view of the connecting plate in FIG. 18.

FIG. 20 is a principle diagram for determining the installation position of the fixed column of the electric fan shaking head angle adjustment mechanism (second gear adjustment).

FIG. 21 is a schematic diagram of two movement trajectories for determining the point D of the electric fan shaking head angle adjustment mechanism (second gear adjustment).

22 is a schematic diagram of determining a fixed column connecting hole, a moving column connecting hole and a track groove on a connecting plate of an electric fan shaking head angle adjustment mechanism (second gear adjustment).

FIG. 23 is a schematic diagram of three movement trajectories for determining the point D of the electric fan shaking head angle adjustment mechanism (three-speed adjustment).

FIG. 24 is a schematic diagram of determining a fixed column connecting hole, a moving column connecting hole and a trajectory groove on a connecting plate of an electric fan rocking head angle adjustment mechanism (three gear adjustment).

FIG. 25 is a schematic structural view of the electric fan swinging head angle adjustment mechanism (second-stage adjustment) in Embodiment 6 when assembled on the electric fan.

FIG. 26 is a schematic structural view of the gear box base in FIG. 25. FIG.

FIG. 27 is a partial structural diagram of the connection board movement control device in FIG. 25. FIG.

FIG. 28 is a schematic structural view of the electric fan swinging head angle adjustment mechanism (second gear adjustment) of Embodiment 7 when assembled on the electric fan.

FIG. 29 is a schematic structural view of the bracket and the movement guide unit in FIG. 28.

FIG. 30 is a schematic structural view of an electric fan shaking head angle adjustment mechanism (two-stage adjustment) assembled on an electric fan in Embodiment 8. FIG.

FIG. 31 is a schematic view of the structure of the movement guide unit in FIG. 30 viewed from diagonally above.

FIG. 32 is a schematic structural view of an electric fan shaking head angle adjustment mechanism (second gear adjustment) when assembled on an electric fan in Embodiment 9. FIG.

33 is a schematic diagram of the structure of the gear box cover, the shaking gear, and the rotating shaft of the shaking head in FIG. 32.

34 is a schematic structural view of another structure of the shaking gear and the rotating shaft of the shaking head in Embodiment 9. FIG.

FIG. 35 is a partial structural diagram of the connection board movement control device in FIG. 32. FIG.

FIG. 36 is a schematic structural view of an electric fan swinging head angle adjustment mechanism (second-stage adjustment) assembled on an electric fan in Embodiment 10. FIG.

FIG. 37 is a partial structural diagram of the connection board movement control device in FIG. 36. FIG.

FIG. 38 is a schematic structural view of an electric fan swinging head angle adjustment mechanism (second gear adjustment) in Example 11 when assembled on the electric fan.

FIG. 39 is a schematic structural view of an electric fan shaking head angle adjustment mechanism (second gear adjustment) in Example 12 when assembled on the electric fan.

FIG. 40 is a schematic structural view of an electric fan swinging head angle adjustment mechanism (second gear adjustment) in Embodiment 13 when mounted on the electric fan.

FIG. 41 is a schematic structural view of the connecting plate movement control device and the internal gear mechanism of the gear box in FIG. 40. FIG.

FIG. 42 is a schematic structural view of an electric fan swinging head angle adjustment mechanism (second gear adjustment) in Embodiment 14 when mounted on the electric fan.

FIG. 43 is a partial structural diagram of the connection board movement control device in FIG. 42. FIG.

Fig. 44 is a structural schematic diagram of an internal gear mechanism of a gear box in which a shaking head rotating shaft and a shaking head gear are movably connected.

Fig. 45 is a schematic diagram of the structure of the shaking gear and the rotating shaft of the shaking head in the split state as viewed from obliquely above.

Fig. 46 is a schematic diagram of the structure of the shaking head gear and the shaking head rotating shaft in Fig. 44 in a split state viewed obliquely from below.

47 is another schematic diagram of the structure of the operating member and the connecting rod in Embodiment 1. FIG.

FIG. 48 is a cross-sectional view of the operating member in FIG. 47. FIG.

FIG. 49 is another schematic structural diagram of a motor protective case.

FIG. 50 is a schematic diagram of the structure of the control unit matched with the clamping unit in FIG. 49.

Fig. 51 is a schematic diagram of the third structure of the motor protective case.

52 is a schematic diagram of the structure of the manipulator matching the clamping unit in FIG. 51.

detailed description

The present invention will be further described below with reference to the drawings and embodiments. Since the structure of the shaking head heater is the same as that of the independent synchronous motor fan, the following will only describe the specific implementation of the shaking head angle adjustment mechanism on the independent synchronous motor fan. The installation situation on the electric heater with shaking head will not be repeated here. In the present invention, all the concepts related to orientation such as "upper", "lower", "vertical", "horizontal", "top", "bottom", "height", etc., unless otherwise specified, are based on the support base The supporting tube is vertically erected, and the condition where the end where the motor is installed is above is a prerequisite.

A shaking head angle adjustment mechanism of the present invention includes a support base, a connecting plate member, and a connecting plate movement control device. The structure and working principle of the support base, the connecting plate member and the connecting plate movement control device of the present invention will be described in detail below through specific embodiments.

Example 1

As shown in FIG. 4 and FIG. 5, in this embodiment of an electric fan shaking head angle adjustment mechanism, a support base has two fixing posts, which are a first fixing post 101 and a second fixing post 102, respectively. The lower end of the first fixing column 101 is provided with a screw 103, and the first fixing column 101 is detachably fixed to the upper end of the first mounting column 010 of the support base 005 through the screw 103. The second fixing post 102 is located above the first fixing post 101, and a first thin rod 105 is connected to the lower end thereof, and is fixed to the upper end of the second mounting post 011 of the support base 005 through the first thin rod 105. The first small rod 105 and the first fixing post 101 are at a corresponding height position, and a screw 106 is provided at the lower end thereof, and is detachably fixed to the upper end of the second mounting post 011 by the screw 106. A cylindrical cap body 104 is also provided on the upper end of the second fixing post 102, and the top end of the first fixing post 101 and the top end of the cylindrical cap body 104 are each provided with a cross-shaped groove for easy installation.

As shown in FIGS. 4, 5, and 6, the connecting plate in this embodiment is a flat-type connecting plate 201, and one end of the connecting plate 201 is provided with a moving column connecting hole 2011, and the moving column connecting hole 2011 is sleeved with a cylindrical screw 007 On the cylinder 0071, the screw 007 with a cylinder is mounted on the eccentric block 003. The connecting plate 201 is also provided with a first fixed column connection hole 2012, a second fixed column connection hole 2013 corresponding to the first fixed column 101 and the second fixed column 102, and a second fixed column connection hole 2013 The first trajectory slot that is circular and arc-shaped 2014.

The connecting plate can only rotate around one fixed column at a time. Therefore, for a flat-type connecting plate, the fixed columns must be staggered from each other in the vertical direction. The fixed column is a column fixed on the support base, and at least one of its upper and lower ends must be connected to other structures to be fixed on the support base. When the upper fixed column of the two fixed columns is connected to other structures through its lower end and is fixed on the support base, in order for the connecting plate to rotate around the lower fixed column, it is necessary to be below and below the upper fixed column The height position corresponding to the fixed column is provided with a small rod with a diameter smaller than that of the upper fixed column, and a corresponding track groove is provided on the connecting plate. The small rod and the track groove cooperate to make the connecting plate fixed around the bottom The column rotates. When the lower fixed column of the two fixed columns is connected to other structures through its upper end and fixed on the support base, the situation is similar to the above, and a small rod needs to be provided on the upper end of the lower fixed column and connected to the connecting plate Set the corresponding track slot. Therefore, the small rod is a post with a diameter smaller than that of the fixed post connected to it so that the connecting plate can rotate around the fixed post at the corresponding height position. The trajectory slot is a slot hole provided on the connecting plate for matching with a small rod. The so-called rotation of the connecting plate around the fixed column refers to the rotation of the connecting plate about the fixed column in order to realize the shaking of the head of the electric fan.

In this embodiment, the first small rod 105 cooperates with the first track groove 2014, so that the connecting plate 201 can rotate around the first fixed post 101, that is, the first track groove 2014 cooperates with the first small rod 105, so that the first A small rod 105 does not hinder the connection plate 201 from rotating around the first fixed post 101.

In a preferred solution, one end or both ends of the fixed column is further provided with a chamfered section formed by chamfering. The setting of the chamfered section is mainly to make it easier to switch the fixed post around which the connecting plate is rotated.

As shown in FIGS. 4 and 5, in this embodiment, the upper end of the first fixing post 101 and the lower end of the second fixing post 102 each have a chamfered

section

1011, 1021 formed by a chamfer. After the first fixing column 101 and the second fixing column 102 are mounted on the support base 005, the lower end of the chamfered section 1011 of the first fixing column 101 and the upper end of the first small rod 105 are at the same height position, and the first fixing column 101 The upper end of the chamfered section 1011 and the upper end of the chamfered section 1021 of the second fixed column 102 are at the same height position. The radial width of the first track groove 2014 is larger than the diameter of the first thin rod 105 and smaller than the lowermost diameter of the chamfered section 1021 of the second fixed column. Therefore, the first trajectory groove 2014 can pass through the first small rod 105, but does not allow the chamfered section 1021 of the second fixed column to enter it. The diameter of the second fixing post connection hole 2013 is smaller than the diameter of the cylindrical cap 104. The function of the cylindrical cap 104 is to prevent the connecting plate 201 from slipping off the upper end of the second fixing post 102.

The working principle of an angle adjustment mechanism of an electric fan in this embodiment: As shown in FIGS. 4 and 5, when the connecting plate 201 is in the position shown in FIG. 4, the connecting plate 201 can just rotate around the first fixed column 101. During the rotation of the connecting plate 201 around the first fixed column 101, the first small rod 105 is always in the first track groove 2014 and the second fixed column connecting hole 2013, therefore, the first small rod 105 does not obstruct the connecting plate 201 Of rotation. Therefore, at this time, the electric fan can shake his head at the shaking angle corresponding to the first fixed column 101. When the angle of the shaking head needs to be changed, an upward force is continuously applied to the connecting plate 201 to move the connecting plate 201 upward, so that the first fixing post 101 is detached from the first fixing post connecting hole 2012, and the second fixing post 102 After entering the second fixed column connection hole 2013, the connecting plate 201 will rotate around the second fixed column 102, and the electric fan will shake its head at the corresponding shaking angle of the second fixed column 102.

Assuming that when the upward force is applied to the connecting plate 201, the second fixing column connecting hole 2013 is just below the second fixing column 102. At this time, the connecting plate 201 can quickly move upward to realize the conversion of the shaking angle . If the upward force is applied to the connecting plate 201, the second fixing post connection hole 2013 is not directly under the second fixing post 102, then the connecting plate 201 can only resist the fall of the second fixing post 102 At the lower end of the corner section 1021, sliding friction occurs between the connecting plate 201 and the second fixing post 102, and the connecting plate 201 continues to rotate around the first fixing post 101. Until the connecting plate 201 rotates until the second fixed column connecting hole 2013 is located just below the second fixed column 102, the connecting plate 201 moves upward under the pushing force of the upward force, and realizes the conversion of the shaking head angle.

To convert the electric fan from the shaking head angle corresponding to the second fixing column 102 to the shaking head angle corresponding to the first fixing column 101, it is only necessary to continuously apply a downward force to the connecting plate 201. It can be seen that the core of the present invention is to use multiple fixed columns and connecting plates to functionally achieve the equivalent of having multiple sets of connecting rods and fixed columns in the prior art, and to move the connecting plates up and down to achieve each group The conversion of connecting rod and fixed column, so as to achieve the purpose of adjusting the angle of the electric fan shaking head.

4 and 7, the connection board movement control device of this embodiment is a connection board movement control device applied to a gear box transmission type electric fan to directly control the connection board member to move up and down, and the connection unit without a connection spring. The connection board movement control device of this embodiment includes a connection board clamping unit, a connection unit, a movement guide unit, a manipulation unit and a clamping unit.

Referring to FIGS. 4 and 7, the connecting plate clamping unit is a connecting plate clamping piece 301. The connecting plate clamping piece 301 includes an upper clamping plate 3011, a lower clamping plate 3012 and a connecting portion 3013. One end of the upper clamping plate 3011 and the lower clamping plate 3012 is fixedly connected to the connecting portion 3013, and a gap through which the connecting plate 201 passes is formed between the upper clamping plate 3011 and the lower clamping plate 3012. The connecting plate clamp 301 is fixedly connected to the connecting unit through its connecting portion 3013.

As shown in FIGS. 4, 7 and 9, the moving guide unit 304 is disposed on the gear box base 0021, and the moving guide unit 304 has a guide tube hole 3041. The connecting unit is a connecting rod 302. The connecting rod 302 is installed in the guide tube hole 3041. The connecting rod 302 can move up and down in the guide tube hole 3041, but cannot rotate. In order to realize that the connecting rod 302 cannot rotate in the guide tube hole 3041, the connecting rod 302 is provided with axially distributed radial projections 3022, and the guide tube hole 3041 is provided with radial recesses matching the radial projections 3022槽3042. The connecting rod 302 located above the guide tube hole 3041 is also provided with an annular blocking portion 3023 for preventing the upper end of the connecting rod 302 from entering the guide tube hole 3041. The annular stopper 3023 is connected to the upper end of the radial projection 3022.

As shown in FIGS. 4 and 7, the connecting portion 3013 of the connecting plate holder 301 has a straight tube shape, and the upper end of the connecting portion 3013 is provided with a slot 3014 into which the lower end of the radial projection 3022 of the connecting rod 302 is inserted, and the lower end of the connecting rod 302 After being inserted into the connecting portion 3013, the screw 305 is screwed into the screw hole at the bottom end of the connecting rod 302 to achieve a fixed connection between the connecting rod 302 and the connecting plate clamp 301.

As shown in FIGS. 4, 7, and 10, the control unit is a control member 303, and the clamping unit is a gear tube 306 fixed on the motor protective shell 013 (for a swingable electric heater, The motor protective shell refers to the protective shell located behind the heating main structure and accommodating the synchronous motor), and the control member 303 is installed in the gear tube 306. A gear post 3061 is provided on the inner wall of the gear tube 306, and a corresponding gear groove 3031 is provided on the control member 303. The stop groove 3031 is composed of a vertical running groove and two horizontal running grooves, the ends of the two horizontal running grooves are connected to the vertical running groove, and the lower ends of the vertical running grooves are connected to the space below the control member 303. The gear post 3061 cooperates with the gear groove 3031 so that the operating member 303 can be maintained at two determined height positions.

In order to keep the operating member 303 at several determined height positions, the matching relationship between the shift tube and the operating member may also be as shown in FIGS. 51 and 52. As shown in FIGS. 51 and 52, the operating member 303 is provided with a stop post 3061, and a stop groove 3031 is provided on the inner wall of the stop tube 306 in cooperation. The gear post 3061 cooperates with the gear groove 3031 so that the operating member 303 can be maintained at two determined height positions.

The cooperation relationship between the locking unit and the control unit in this embodiment may also be as shown in FIG. 49 and FIG. 50. As shown in FIGS. 49 and 50, the clamping unit is a gear tube 306 fixed on the motor protective case 013, and the steering unit includes a steering member 303, a gear spring 30311 and two steel balls 30310. The control unit is installed in the gear tube 306 and can move up and down in the gear tube 306. The operating member 303 is provided with a lateral through hole 30312, a stop spring 30311 and two steel balls 30310 are installed in the lateral through hole 30312, and the two steel balls 30310 are located at both ends of the stop spring 30311 respectively. The inner wall of the gear tube 306 is provided with two annular gear grooves 3062. The annular gear groove 3062 cooperates with the steel ball 30310 and the gear spring 30311, so that the control member 303 can be maintained at two determined height positions.

As shown in FIGS. 7 and 8, in this embodiment, the operating member 303 is provided with two “U”-shaped slots 3033 symmetrically near its lower end, and the flap 3034 in the middle of the “U”-shaped slot 3033 An inward protrusion 3035 is formed at the lower end of the inside. The upper end of the connecting rod 302 is provided with a circular truncated portion 3021 whose radius gradually decreases in the vertical upward direction and a reduced portion 3024 located below the circular truncated portion 3021 and having a smaller radius than the circular truncated portion 3021. When connecting, the upper end of the connecting rod 302 is inserted into the manipulator 303 from bottom to top, and the circular truncated portion 3021 gradually expands the flap 3034 so that the circular truncated portion 3021 can smoothly pass through the protrusion 3035 inside the flap 3034. Finally, the inside of the flap 3034 The protrusion 3035 is stuck at the reduced portion 3024 of the connecting rod 302. The manipulator 303 can pull the connecting rod 302 to move up and down, and can independently rotate relative to the connecting rod 302.

In this embodiment, the connection between the connecting rod and the operating member may also be as shown in FIGS. 11 and 12. As shown in FIGS. 11 and 12, the upper end of the connecting rod 302 is like a knife that cuts the upper end of the connecting rod 302 in FIG. 7 along a cross-shaped path, and the operating member 303 is provided with an inward slightly above the lower end The annular protrusion 3036. When connecting, the upper end of the connecting rod 302 is inserted into the manipulating member 303 from bottom to top. During the insertion process, the four parts of the circular table portion 3021 are pressed by the annular protrusion 3036 to move closer to the center of the circular table portion 3021, so that the circular table portion 3021 can smoothly pass through the annular protrusion 3036. Eventually, the annular protrusion 3036 gets stuck in the connecting rod 302 At 3024. In this way, the manipulator 303 can either pull the connecting rod 302 to move up and down, or rotate independently.

In this embodiment, the connection between the connecting rod 302 and the manipulator 303 may also be as shown in FIGS. 47 and 48. As shown in FIGS. 47 and 48, the operating member 303 is provided with a tube hole 3037 along its central axis. The tube hole 3037 is provided with a partition 3038 near the lower end of the operating member 303, and a through hole 3039 is provided in the center of the partition 3038 . The upper end of the connecting rod 302 is a straight rod, and a screw hole 3027 is provided on the upper end of the straight rod. When assembling, first insert the straight rod on the upper end of the connecting rod 302 into the tube hole 3037 from bottom to top, and then fix a cylindrical screw 023 to the upper end of the connecting rod 302 from top to bottom. The manipulator 303 and the cylindrical screw 023 can rotate independently. In this way, the manipulator 303 can either pull the connecting rod 302 to move up and down, or rotate independently.

For convenience of expression, the present invention adopts such a connection method between the connecting rod shown in FIGS. 7, 11, and 47 and the operating member, that is, the operating member can not only move the connecting rod up and down, but also be independent of the connecting rod. The rotating connection method is collectively referred to as an independent rotating connection. The structure of the upper end of the connecting rod as shown in FIGS. 7, 11, and 47 and the similar structure are collectively referred to as an independent rotating connecting stud, as shown in FIGS. 11. The structure matched with the upper end of the connecting rod and the similar structure on the operating member shown in FIG. 47 are collectively referred to as an independently rotatable connecting pipe head.

In this embodiment, a method for adjusting the angle adjustment mechanism of an electric fan is as follows. Referring to FIG. 4, the current connection plate 201 rotates around the first fixed column 101, and the electric fan shakes the head at a shaking angle corresponding to the first fixed column 101. At this time, the annular blocking portion 3023 of the connecting rod 302 is located against or slightly higher than the upper end of the guide tube hole 3041, and the blocking post 3061 is just caught in the horizontal running groove above the blocking groove 3031. When it is necessary to adjust the angle of the shaking head, first turn the manipulator 303 to make the shift post 3061 enter the vertical groove of the gear groove 3031, then continue to pull up the manipulator 303 until the conversion and connection of the electric fan shaking head angle is completed When the connecting portion 3013 of the plate clamping member 301 moves upward to abut the lower end of the guide tube hole 3041 and the connecting rod 302 cannot continue to move upward, the operating member 303 is rotated, so that the shift post 3061 enters the horizontal direction of the shift groove 3031 below In the slot. After that, the electric fan shakes his head at the shaking angle corresponding to the second fixed column 102. When it is necessary to readjust the shaking angle corresponding to the shaking angle of the first fixed column 101, rotate the control member 303, press down the control member 303, and complete the conversion of the shaking head angle, and the control member 303 cannot continue to move downward, rotate the control member 303, the gear column 3061 can be entered into the horizontally-oriented groove above the gear groove 3031.

Example 2

This embodiment of an electric fan shaking head angle adjustment mechanism provides another specific implementation of a second-stop adjustment support base and a connecting plate.

Referring to FIG. 13, another preferred embodiment of the support base and the connecting plate for the second gear adjustment. As shown in FIG. 13, a truncated screw 103 is provided at the lower end of the first fixing column 101, a truncated chamfered section 1011 is provided at the upper end, and a cross-shaped groove is also provided at the top thereof. The first fixing post 101 is fixed to the upper end of the first mounting post 010 by a screw 103. The second fixing post 102 is located above the first fixing post 101. A chamfered section 1021 is provided at the lower end of the second fixing post 102. The upper end of the second fixing post 102 is fixedly connected to one end of a horizontal horizontal fixing post connecting rod 107, and is fixed by the fixing post connecting rod 107. At the upper end of the second mounting post 011 of the support base. A rectangular through hole 1071 is provided at the connecting end of the fixed column connecting rod 107 and the second mounting post 011, a rectangular connecting end 0111 is correspondingly provided at the top of the second mounting post 011, and the rectangular through hole 1071 is sleeved on the rectangular connecting end 0111, The two are fixedly connected by screws 108.

As shown in FIG. 13, the connecting plate includes a connecting plate 201 and a connecting tube 202. The connecting plate 201 is fixedly connected to the connecting tube 202, and the connecting plate is sleeved on the moving column through the connecting tube 202. The connecting plate 201 is provided with a first fixing column connection hole 2012 and a second fixing column connection hole 2013 corresponding to the first fixing column 101 and the second fixing column 102, respectively.

With reference to Example 1 and Example 2, how to determine the installation position of the two fixed columns, the fixed column connection holes and the movement on the connection plate for the two-speed adjustment (that is, two shaking angles) Column connecting hole and track groove.

First, set the points where A, C, and D respectively represent the central axis of the support tube, the central axis of the swinging axis, and the central axis of the motion column projected onto the projection surface, and let the distance between A and C be |AC| , The distance between C and D is |CD|. It is assumed that the two shaking head angles to be achieved by the electric fan are θ1 and θ2, and θ1 is greater than θ2.

As shown in Figure 20, the XAY rectangular coordinate system is established, and point A is the origin. Then, take point A as the center of the circle and |AC| as the radius to make the circle Rc. After that, two angles ∠C1AC4 and ∠C2AC3 are made such that ∠C1AC4 = θ1 and ∠C2AC3 = θ2, and the positive half axis of the X axis is the angle bisector of ∠C1AC4 and ∠C2AC3. After that, make four small circles with C1, C2, C3, C4 as the center and |CD| as the radius. Then, make two circles Rb1, Rb2, so that the circle Rb1 satisfies the circumscribed circle C1 and the circle C4; the circle Rb2 satisfies the circumscribed circle C2, and the circle C3. B1 and B2 are the centers of circles Rb1 and Rb2, respectively.

The center of the circle that meets the circumscribed circle C1 and the inscribed circle C4 is a branch of the hyperbola with the opening in the negative direction of the Y axis. The hyperbola takes C1 and C4 as the focal point, in fact, the axis length is | CD|Double. Intercepting the trajectory of the circle center with the Y axis and the line segment AC4 can obtain a curve, select a point on this curve as the point B1, and then draw the circle Rb1. Similarly, the trajectory of the circle that meets the circumscribed circle C2 and the inscribed circle C3 is also a branch of the hyperbola opening in the negative direction of the Y axis. The hyperbola takes C2 and C3 as the focus, and the actual axis The length is twice that of |CD|. The trajectory of the circle center is intercepted with the Y axis and the line segment AC3, and then a point on the obtained curve is selected as the point B2, thereby drawing the circle Rb2.

The corresponding relationship between the two-stop adjustable support base and that shown in FIG. 20: Point A corresponds to the projection point of the central axis of the support tube on the projection surface, and B1 and B2 correspond to the projection points of the central axes of the two fixed columns on the projection surface. Referring to FIGS. 5 and 20, B1 and B2 correspond to the projection points of the central axes of the first fixed column 101 and the second fixed column 102 on the projection surface, and the positional relationship of A, B1, and B2 is determined. The mounting positions of the first fixing column 101 and the second fixing column 102 relative to the support tube 006.

For convenience of expression, the shaking process of the electric fan around a fixed column will be called the shaking process of the electric fan about the projection point of the central axis of the fixed column on the projection surface, for example, the electric fan around the first fixed column 101 The shaking process of the head will be called the shaking process of the electric fan around B1. The circle Rc is the circle where the movement trajectory of the point C during the shaking of the electric fan is located, and the circles Rb1 and Rb2 are the circles where the movement trajectory of the electric fan is about the point D during the shaking of the head around B1 and B2.

The following continues to describe how to determine the fixed column connection hole, motion column connection hole and track groove of the two-block connection plate.

As shown in Figure 21, on the Y axis (Figure 21 is based on Figure 20, the X axis, Y axis, circles C1, C2, C3, C4, line segments AC1, AC2, AC3, AC4 in Figure 20 are hidden, Therefore, please refer to the Y axis in FIG. 20) The circles D1 and D4 are drawn with the radius of |CD| on the right, so that the center points D1 and D4 of the circles D1 and D4 are on the circle Rb1, and the circle D1 and the circle Rc are in phase Cut, circle D4 cuts out of circle Rc. Similarly, draw circles D2 and D3 on the right side of the Y axis with |CD| as the radius, so that the center D2 and D3 of the circles D2 and D3 are on the circle Rb2, and the circle D2 and the circle Rc are inscribed inward, and the circle D3 It is tangent to the circle Rc. Draw line segments B1D1, B1D0, B1D4, B2D2, B2D0, B2D3, where D0 is the intersection of circle Rb1 and circle Rb2 on the right side of the Y axis. The bad arc D1D4 represents the movement trajectory of point D during the shaking of the electric fan around B1, the bad arc D2D3 represents the movement trajectory of point D during the shaking of the electric fan around B2, D0 is the intersection of the two movement trajectories at point D, and the angle of the shaking of the electric fan The conversion occurs when point D is at D0.

Referring to FIG. 4, the analysis shows that if viewed from the connection plate 201, when the connection plate 201 rotates around the first fixed column 101, the projection of the central axis of the second fixed column 102 on the connection plate 201 is connected around the first fixed column The center of the hole 101 rotates in the opposite direction; when the connecting plate 201 rotates around the second fixed column 102, the projection of the central axis of the first fixed column 101 on the connecting plate 201 reverses around the center of the connecting hole 102 of the second fixed column To turn. With this analysis, the following steps can be carried out.

As shown in Figure 22 (Figure 22 is based on Figure 21, the circles Rc, Rb1, Rb2, D1, D2, D3, D4 are hidden), the angles ∠D1B1D0, ∠D0B1D4 are measured, and the ray B1D1 can be around the B1 point by the ray B1D0 It is obtained by rotating the angle ∠D1B1D0 counterclockwise, and the ray B1D4 can be obtained by rotating the angle B1D0 clockwise around the B1 point ∠D0B1D4. According to this, rotating the angle B1B2 clockwise around the B1 point ∠D1B1D0 results in the ray B1L4 and inverting the B1B2 around the B1 point Rotate the angle of the hour hand ∠D0B1D4 to get the ray B1L3. Then, take the point B1 as the center and the length of the line segment B1B2 as the radius, and draw the arc L3L4 passing through the point B2. The two endpoints of the arc L3L4 are on the rays B1L3 and B1L4.

As shown in Fig. 22, the angles ∠D2B2D0, ∠D0B2D3 are measured, the ray B2D2 can be obtained by the ray B2D0 rotating counterclockwise around the point B2 ∠D2B2D0, the ray B2D3 can be obtained by the ray B2D0 rotating clockwise around the point B2 ∠D0B2D3, according to this, Rotate the ray B2B1 clockwise around the B2 point ∠D2B2D0 to get the ray B2L2, rotate the ray B2B1 counterclockwise around the B2 point ∠D0B2D3 to get the ray B2L1, and then use the B2 point as the center and the line segment B1B2 length as the radius to draw the process The arc L1L2 at the point B1, the two endpoints of the arc L1L2 are located on the rays B2L1, B2L2, respectively.

The corresponding relationship between the two-block connection plate and Figure 22 is: B1, B2 are the center of the two fixed column connection holes on the connection plate, D0 is the center of the movement column connection hole (D0 corresponds to the connection tube when there is a connection tube) The projection of the central axis of the central axis on the connection plate), the connection holes of the fixed columns whose centers are B1 and B2 correspond to the fixed columns corresponding to B1 and B2, respectively. In the process of the electric fan shaking its head around B1, the projection trajectory of the central axis of the fixed column corresponding to B2 on the connecting plate is an arc L3L4. In the process of the electric fan shaking its head around B2, the projection trajectory of the central axis of the fixed column corresponding to B1 on the connecting plate is an arc L1L2. Referring to FIGS. 5, 6, and 22, the shape of the first track groove 2014 can be determined as follows: a value larger than the diameter of the first thin rod 105 and smaller than the minimum diameter of the chamfered section 1021 of the second fixed column is selected , Make a circular surface with this value as the diameter, so that the center of the circular surface moves along the projected trajectory of the central axis of the second fixed column 102 on the connecting plate 201, that is, along the circular arc L3L4, the circular surface is swept The passing area is the first track groove 2014.

Example 3

This embodiment of an electric fan rocking head angle adjustment mechanism provides a preferred implementation of a support base and a connecting plate for achieving third gear adjustment. Referring to Figures 14 and 15, a preferred embodiment of the three-speed adjustable support base and the connecting plate. As shown in FIGS. 14 and 15, the first fixing post 101, the second fixing post 102 and the third fixing post 109 are fixed on the support base 005. A first thin rod 105 is connected to the lower end of the second fixing column 102, and is detachably fixed to the support base 005 by the first thin rod 105. A second thin rod 110 is connected to the lower end of the third fixing column 109, and is detachably fixed to the support base 005 by the second thin rod 110. The third fixing post 109 is located above the second fixing post 102 side, and the second fixing post 102 is located above the first fixing post 101 side. The upper end of the first fixed column 101 is provided with a chamfered section 1011, the upper and lower ends of the second fixed column 102 are provided with

chamfered sections

1022, 1021, and the lower end of the third fixed column 109 With a chamfered section 1091 formed by chamfering. The chamfered section 1011 of the first fixed column and the chamfered section 1021 at the lower end of the second fixed column are at the same height position, that is, the upper end of the chamfered section 1011 and the upper end of the chamfered section 1021 are at the same height, and the lower end of the chamfered section 1011 It is also at the same height as the lower end of the chamfered section 1021. The chamfered section 1022 at the upper end of the second fixed column and the chamfered section 1091 at the lower end of the third fixed column 109 are at the same height position. A cylindrical cap 104 is also provided on the top of the third fixing post 109. The top of the first fixing post 101, the top of the second fixing post 102, and the top of the cylindrical cap 104 are each provided with a cross-shaped groove for easy installation.

As shown in FIGS. 14 and 15, the connecting plate is a flat-type connecting plate 201, and the connecting plate 201 is provided with a moving column connecting hole 2011, a first track groove 2014, a second track groove 2016, and a first fixed column 101, a first fixed column connection hole 2012, a second fixed column connection hole 2013, a third fixed column connection hole 2015 corresponding to the second fixed column 102, the third fixed column 109, the second fixed column connection hole 2013 and the first The track groove 2014 is connected, and the third fixed column connecting hole 2015 is connected to the second track groove 2016. The width of the first track groove 2014 allows the first thin rod 105 to pass through, but does not allow the chamfered section 1021 at the lower end and the chamfered section 1022 at the upper end of the second fixed column 102 to enter. The width of the second track groove 2016 allows the second thin rod 110 to pass through, but does not allow the chamfered section 1091 at the lower end of the third fixed post 109 to enter it. The first track groove 2014 cooperates with the first small rod 105 so that the first small rod 105 does not hinder the connection plate 201 from rotating around the first fixed post 101. The second track groove 2016 cooperates with the second small rod 110 so that the second small rod 110 does not hinder the connection plate 201 from rotating around the first fixed column 101 and from rotating around the second fixed column 102. As shown in FIG. 11, a preferred three-speed adjustable gear slot 3031 is also provided.

Example 4

This embodiment of an electric fan shaking head angle adjustment mechanism provides another preferred embodiment of a support base and a connecting plate for achieving three-speed adjustment. 16 and 17, another preferred embodiment of the three-speed adjustable support base and the connecting plate. Comparing FIGS. 14 and 16, the first fixing post 101 and the second fixing post 102 in the two preferred embodiments are the same, and the difference is the third fixing post 109. Comparing FIGS. 13 and 16, the third fixing post 109 in FIG. 16 is installed in the same manner as the second fixing post 102 in FIG. 13. In the preferred embodiments of the support base and the connecting plate shown in FIGS. 16 and 17, the height and position relationship of the chamfered sections of the three fixed columns is the same as that in the preferred embodiments shown in FIGS. 14 and 15, so they are not repeated here. As shown in Figs. 16 and 17, the connecting plate is a flat plate connecting plate 201, and the connecting plate 201 is provided with a moving column connecting hole 2011, a first track groove 2014, and a first fixed column 101 and a second fixed column respectively 102. A first fixed column connection hole 2012, a second fixed column connection hole 2013, and a third fixed column connection hole 2015 corresponding to the third fixed column 109. The second fixed column connection hole 2013 communicates with the first track groove 2014. The width of the first track groove 2014 satisfies: the first thin rod 105 can pass through, but the chamfered section 1021 at the lower end and the chamfered section 1022 at the upper end of the second fixed column 102 are not allowed to enter. The first track groove 2014 cooperates with the first small rod 105 so that the first small rod 105 does not hinder the connection plate 201 from rotating around the first fixed post 101.

With reference to Embodiments 3 and 4, how to determine the installation position of the three fixed columns, as well as the fixed column connection holes, the movement column connection holes and the Trajectory slot.

First of all, let A, C, D, |AC|, |CD| represent the same meaning as the two gears, and set the three shaking head angles that the electric fan wants to reach as θ1, θ2, θ3, and θ1 is greater than θ2, θ2 Greater than θ3. As shown in Figure 23, the XAY rectangular coordinate system is established, and point A is the origin. Then, in the same way as in the second gear, draw circles Rc, Rb1, Rb2, and Rb3, where circle Rb1 corresponds to shaking head angle θ1, circle Rb2 corresponds to shaking head angle θ2, and circle Rb3 corresponds to shaking head angle θ3. The circles Rc, Rb1, Rb2, and Rb3 are centered on point A, point B1, point B2, and point B3, respectively. The circle Rc is the circle where the movement trajectory of the point C during the shaking of the electric fan is located, and the circles Rb1, Rb2, Rb3 are the circles where the movement trajectory of the electric fan moves around the point D during the shaking of the head around B1, B2, B3, respectively.

The corresponding relationship between the three-block support base and Figure 23: point A corresponds to the projection point of the central axis of the support tube on the projection surface, and B1, B2, and B3 correspond to the projection points of the central axis of the three fixed columns on the projection surface.

The following continues to describe how to determine the fixed column connection hole, motion column connection hole and track groove of the three-block connection plate.

As shown in Figure 23, using the same method as in the second gear, find D1, D2, D3, D6, D7, and D8 on the right side of the Y axis, where D1, D2, and D3 are located in circles Rb1, Rb2, and Rb3, respectively. Up, and, if D1, D2, and D3 are the center of the circle and |CD| is the radius, respectively, each circle is inscribed with the circle Rc; D8, D7, and D6 are located on the circles Rb1, Rb2, and Rb3, respectively. In addition, if D8, D7, and D6 are used as the center of the circle and |CD| is used as the radius, each circle is tangent to the circle Rc. Draw line segments B1D1, B1D4, B1D8, B2D2, B2D4, B2D5, B2D7, B3D3, B3D5, B3D6, where D4 is the intersection of circle Rb1 and circle Rb2 on the right side of the Y axis, and D5 is the circle Rb2 and circle Rb3 on the right side of the Y axis The intersection of the sides. The bad arc D1D8 represents the movement trajectory of the electric fan around the point D during the shaking of the head B1, the bad arc D2D7 represents the movement trajectory of the electric fan around the point D during the shaking of the head B2, and the bad arc D3D6 represents the movement trajectory of the electric fan around the point D during the shaking of the head .

As shown in Figure 24 (Figure 24 is based on Figure 23, the X axis, Y axis and circles Rc, Rb1, Rb2, Rb3 are hidden), the angles ∠D1B1D4, ∠D4B1D8 are measured, and the ray B1D1 can be around the B1 point by the ray B1D4 Rotate angle counterclockwise ∠D1B1D4, and ray B1D8 can be obtained by rotating angle B1D4 clockwise around B1 point ∠D4B1D8, according to which, rotate point B2 around B1 clockwise angle ∠D1B1D4 to get arc B2L10, and reverse point B2 around point B1 Rotate angle ∠D4B1D8 clockwise to get arc B2L3; rotate point B3 clockwise around B1 ∠D1B1D4 to get arc B3L8, rotate point B3 around B1 counterclockwise ∠D4B1D8 to get arc B3L5.

As shown in Fig. 24, the angles ∠D2B2D4, ∠D4B2D7 are measured, the ray B2D2 can be obtained by the ray B2D4 rotating counterclockwise around the point B2 ∠D2B2D4, the ray B2D7 can be obtained by the ray B2D4 rotating clockwise around the point B2 ∠D4B2D7, according to this, Rotate point B1 around B2 clockwise angle ∠D2B2D4 to get arc B1L2, rotate point B1 around point B2 counterclockwise angle ∠D4B2D7 to get arc B1L11; turn point B3 around B2 clockwise angle ∠D2B2D4 to get arc B3L7, then Point B3 rotates counterclockwise around point B2 by angle ∠D4B2D7 to get arc B3L6.

As shown in Figure 24, the angle ∠D4B2D5 is measured, and the ray B2D5 can be obtained by rotating the angle of the ray B2D4 clockwise around the point B2 ∠D4B2D5. According to this, rotate the angle B1 counterclockwise around B2 ∠D4B2D5 to obtain the arc B1N1 and the point B3 Rotate the angle ∠D4B2D5 counterclockwise around B2 to get the arc B3N3. Obviously, arc B1N1 belongs to a part of arc L2L11, and arc B3N3 belongs to a part of arc L6L7. It should be noted that if you select different points B1, B2, and B3, the intersection of circle Rb1 and circle Rb2 on the right of the Y axis, and the intersection of circle Rb2 and circle Rb3 on the right of the Y axis will be different. Therefore, there are It may happen that D5 is located at the upper left of D4 or that D5 and D4 coincide. When D5 is located at the upper left of D4, point N3 is obtained by rotating the angle B3 clockwise around B2 ∠D4B2D5, and point N1 is obtained by rotating the angle B1 clockwise around B2 ∠D4B2D5; when D5 coincides with D4, point B3 is Point N3, point B1 is point N1.

As shown in Fig. 24, the angles ∠D3B3D5, ∠D5B3D6 are measured, the ray B3D3 can be obtained by the ray B3D5 rotating counterclockwise around the point B3 ∠D3B3D5, the ray B3D6 can be obtained by the ray B3D5 rotating clockwise around the point B3 ∠D5B3D6, according to this, Rotate angle N1 around N3 clockwise ∠D3B3D5 to get arc N1L1, rotate angle N1 around N3 counterclockwise ∠D5B3D6 to get arc N1L12; rotate point B2 around N3 clockwise ∠D3B3D5 to get arc B2L4, then Rotate the angle B2 around N3 counterclockwise ∠D5B3D6 to get the arc B2L9.

The corresponding relationship between the third-block connection plate and that shown in Figure 24 is: B1, B2, N3 are the center of the three fixed column connection holes on the connection plate, D4 is the center of the movement column connection hole (D4 corresponds to the connection tube The projection of the central axis of the connecting tube on the connecting plate), the connecting holes of the fixing columns with the centers B1, B2, and N3 correspond to the fixing columns corresponding to B1, B2, and B3, respectively. In the process of the electric fan shaking its head around B1, the projection trajectory of the central axis of the fixed column corresponding to B2 on the connecting plate is circular arc L3L10, and the projection trajectory of the central axis of the fixed column corresponding to B3 on the connecting plate is circular arc L5L8 . In the process of the electric fan shaking its head around B2, the projection trajectory of the central axis of the fixed column corresponding to B1 on the connecting plate is circular arc L2L11, and the projection trajectory of the central axis of the fixed column corresponding to B3 on the connecting plate is circular arc L6L7 . In the process of the electric fan shaking its head around B3, the projection trajectory of the central axis of the fixed column corresponding to B1 on the connecting plate is an arc L1L12, and the projection trajectory of the central axis of the fixed column corresponding to B2 on the connecting plate is an arc L4L9 . After the projection trajectory of the central axis of each fixed column on the connecting plate is determined, the trajectory groove of the third gear can be determined by referring to the method of determining the trajectory groove of the two gears, which will not be repeated here.

Example 5

This embodiment of an electric fan shaking head angle adjustment mechanism provides a preferred embodiment of a support base and a connecting plate for achieving four-speed adjustment. Referring to FIGS. 18 and 19, a preferred embodiment of the four-speed adjustable support base and the connecting plate. As shown in FIGS. 18 and 19, a first fixing post 101, a second fixing post 102, a third fixing post 109, and a fourth fixing post 111 are fixed on the support base 005, and the second fixing post 102 is located on the side of the first fixing post 101 Above, the third fixed post 109 is located above the second fixed post 102 side, and the fourth fixed post 111 is located above the third fixed post 109 side. The first fixing post 101 is detachably fixed on the support base 005, and the second fixing post 102 is detachably fixed on the support base 005 through the first thin rod 105 connected to the lower end thereof. The fourth fixing column 111 is detachably fixed at

The one end of the connecting rod 112 of the shape fixing column is below, the third fixing column 111 is detachably fixed on the second thin rod 110 connected by the upper end thereof

The other end of the fixed post connecting rod 112 is below.

The fixing rod connecting rod 112 is fitted on the upper end of the mounting pillar 012 of the support base through the through hole 1121 in the middle, and is fixed by the nut 113. The upper end of the first fixed column 101, the upper and lower ends of the second fixed column 102, the upper and lower ends of the third fixed column 109, and the lower end of the fourth fixed column 111 are each provided with a chamfered section. The chamfered section 1011 at the upper end of the first fixed column 101 and the chamfered section 1021 at the lower end of the second fixed column 102 are at the same height position, and the chamfered section 1022 at the upper end of the second fixed column 102 and the lower end of the third fixed column 109 fall down The corner sections 1091 are at the same height position, and the upper chamfered section 1092 at the upper end of the third fixed column 109 and the chamfered section 1111 at the lower end of the fourth fixed column 111 are at the same height position. As shown in FIGS. 18 and 19, the connecting plate is a flat-type connecting plate 201, and the connecting plate 201 is provided with a motion column connecting hole 2011, a first track groove 2014, a second track groove 2016, and a first fixed column 101, a first fixed column connection hole 2012, a second fixed column connection hole 2013, a third fixed column connection hole 2015, a fourth fixed column corresponding to the second fixed column 102, the third fixed column 109, the fourth fixed column 111 In the connection hole 2017, the second fixed column connection hole 2013 communicates with the first track groove 2014, and the third fixed column connection hole 2015 communicates with the second track groove 2016. The width of the first track groove 2014 allows the first thin rod 105 to pass through, but does not allow the chamfered section 1021 at the lower end and the chamfered section 1022 at the upper end of the second fixed column 102 to enter. The width of the second track groove 2016 allows the second thin rod 110 to pass through, but does not allow the lower chamfered section 1091 and the upper chamfered section 1092 of the third fixed column 109 to enter. The first track groove 2014 cooperates with the first small rod 105 so that the first small rod 105 does not hinder the connection plate 201 from rotating around the first fixed post 101. The second track groove 2016 cooperates with the second small rod 110 so that the second small rod 110 does not hinder the connection plate 201 from rotating around the fourth fixed column 111.

For the shaking head angle adjustment mechanism of the present invention, it is to switch the shaking head angle by moving the connecting plate up and down, and the connecting plate movement control device is designed to control the up and down movement of the connecting plate, which mainly through the following three ways Control the up and down movement of the connection plate: the first is to directly control the up and down movement of the connection plate; the second is to indirectly control the up and down movement of the connection plate by controlling the eccentric block to move up and down; the third is to control the up and down movement of the shaking head, Indirectly control the connection plate to move up and down; for the third way, it has two different implementations. The first is the fixed connection of the shaking head gear and the shaking head rotating shaft. When the shaking head rotating shaft moves up and down, the shaking head gear moves up and down together The second type is that the shaking head gear and the shaking head rotating shaft are not fixed. When the shaking head rotating shaft moves up and down, the shaking head gear keeps its position in the vertical direction unchanged.

In the following, various preferred embodiments of the connection board movement control device will be described in detail in conjunction with Examples 6 to 14. Since the supporting base and the connecting plate can be combined with different connecting plate movement control devices, and various preferred embodiments of the supporting base and the connecting plate have been described in detail above, the supporting base and the connecting plate will not be described in detail below Connect the board. Meanwhile, in the following, if some components in a certain preferred embodiment of the connection plate movement control device have been described in detail in other embodiments, the description will not be repeated in this preferred embodiment.

For the first way of the connection board movement control device, it includes a connection board clamping unit, a connection unit, a movement guide unit, a control unit and a clamping unit. According to the different connection units, the first method of connecting plate movement control device can be divided into two types with connecting spring and without connecting spring.

Example 6

As shown in FIG. 25, this embodiment provides the first approach applied to a gearbox transmission type electric fan, and the connection unit is a connection plate movement control device with a connection spring. As shown in FIGS. 25, 26, and 27, the moving guide unit 304 is provided on the gear box base 0021, the moving guide unit 304 has a guide tube hole 3041, and the connection unit is installed in the guide tube hole 3041. The connecting unit includes a connecting spring 308, an upper connecting rod 309, and a lower connecting rod 307. The upper end of the connecting spring 308 is connected to the upper connecting rod 309, and the lower end is connected to the lower connecting rod 307. Specifically, the upper end of the lower connecting rod 307 and the lower end of the upper connecting rod 309 are each provided with a spring connecting portion 3080 for connecting the connecting spring 308, and the two spring connecting portions 3080 have the same shape. The spring connection part 3080 is a straight tube, and an annular radial protrusion 30801 is provided on the straight tube. After the connection spring 308 is connected, the annular radial protrusion 30801 on the spring connection part 3080 catches the dense ring 3081 connecting the spring 308, preventing The connection spring 308 comes off.

As shown in FIGS. 25, 26, and 27, the upper connecting rod 309 is provided with a radially protruding limiting convex portion 3091 near the upper end of the spring connecting portion 3080, and the upper end is provided with an independently rotatable connection with the operating member 303. Rotate the connecting column head independently. The inner wall of the guide tube hole 3041 is provided with a limit groove 3044 that restricts the upper limit of the upper connecting rod 309 to move up and down within a certain height interval and a guide limit protrusion 3091 into the limit groove from outside the guide tube hole 3041 The

guide grooves

3043 and 3045 in 3044. As shown in FIG. 26, the limiting groove 3044 is a vertically running groove whose upper end is close to the upper end of the guide tube hole 3041. The guide slot includes a vertical guide slot 3045 and a horizontal guide slot 3043. The lower end of the vertically oriented guide groove 3045 communicates with the space below the guide tube hole 3041, the upper end of the vertically oriented guide groove 3045 communicates with one end of the horizontally oriented guide groove 3043, and the other end of the horizontally oriented guide groove 3043 is The middle of the limiting groove 3044 communicates. As shown in FIG. 27, an axially distributed radial protrusion 3071 is provided on the lower connecting rod 307, and its lower end is fixedly connected to the connecting plate clamping member 301 by screws 305.

The limiting protrusion 3091 cooperates with the limiting groove 3044, so that the upper connecting rod 309 can only move up and down within a certain height interval. This is of great significance for smoothly installing the operating member 303 on the upper end of the upper connecting rod 309 and avoiding damage to the connecting spring 308 caused by erroneous operation. On the other hand, the vertically oriented guide groove 3045 and the protrusion 3071 cooperate so that the lower connecting rod 307 can only move up and down in the guide tube hole 3041, and cannot rotate. For the limit protrusions, limit grooves and guide grooves, it can also be analogous to the gear post and the gear groove, the limit groove and the guide groove are arranged on the upper connecting rod, and the limit protrusion is arranged on the inner wall of the guide tube hole on.

The use mode of this embodiment; as shown in FIG. 25, the connecting plate 201 rotates around the first fixed column 101, the limiting convex portion 3091 of the upper connecting rod 309 is located at the lowermost position of the limiting groove 3044, and the blocking column Just stuck in the horizontal groove above the gear groove. When adjusting the angle of the shaking head, first turn the control member 303 to make the gear post enter the vertical groove of the gear slot, then, pull up and turn the control member 303 to make the gear post enter the level of the gear slot below Just walk into the slot. After this operation is completed, the shaking angle usually does not immediately change. At this time, the connecting spring 308 is in a stretched state, and it continuously exerts an upward pulling force on the lower connecting rod 307, so that the connecting plate clamping member 301 holds the connecting plate 201 and moves upward until the fixed column around which the connecting plate 201 rotates When the switching occurs, the connecting plate 201 moves up, and the connecting spring 308 returns to the normal state again. When it is necessary to readjust the shaking angle corresponding to the shaking angle of the first fixed column 101, rotate the operating member 303, press down and rotate the operating member 303, so that the gear post is snapped into the horizontal running groove above the gear slot. Similarly, after completing this operation, the angle of shaking the head usually does not immediately change. At this time, the connecting spring 308 is in a compressed state, and it continuously exerts a downward pressure on the lower connecting rod 307 until the connecting plate 201 completes the switching of the fixed post around it, and the connecting plate 201 moves down, and the connecting spring 308 returns to the normal state.

Example 7

As shown in FIG. 28, this embodiment provides the first approach applied to an independent synchronous motor-type electric fan, and the connection unit is a connection board movement control device without a connection spring. As shown in FIGS. 28 and 29, the eccentric block 003 is fixedly installed at the lower end of the output shaft of the synchronous motor 014, and the connecting plate is mounted on the moving column 0071 on the eccentric block 003. The connecting plate clamping member 301 holds the connecting plate 201 and is fixed to the lower end of the connecting rod 302. As shown in FIG. 29, the moving guide unit 304 is a guide tube, and a mounting plate is fixedly connected to the lower end of the guide tube, and two through holes are provided on the mounting plate, and the mounting plate is fixed on the bracket 015 by two screws 310 . A guide tube hole 3041 is formed in the guide tube. The guide tube hole 3041 is provided with a radial groove 3042 that cooperates with the radial projection 3022 of the connecting rod 302, so that the connecting rod 302 can move up and down in the guide tube hole 3041 Distance, but unable to turn. The upper end of the connecting rod 302 and the manipulator 303 can be independently rotated and connected.

Example 8

As shown in FIG. 30, this embodiment provides the first approach applied to an independent synchronous motor-type electric fan, and the connection unit is a connection board movement control device with a connection spring. 27 and 30, the connecting unit of this embodiment also includes a lower connecting rod 307, a connecting spring 308, and an upper connecting rod 309. The lower end of the connecting spring 308 is connected to the upper end of the lower connecting rod 307, and the upper end is connected to the lower end of the upper connecting rod 309 . The lower connecting rod 307 is provided with axially distributed radial protrusions 3071, and the upper connecting rod 309 is provided with radially protruding limiting protrusions 3091. As shown in FIGS. 30 and 31, the mobile guide unit 304 is a guide tube, and a mounting plate is fixedly connected to the lower end of the guide tube. The mounting plate is provided with two through holes, and the mounting plate is fixed to the bracket by two screws 310 015 on. A guide tube hole 3041 is formed in the guide tube, and the inner wall of the guide tube hole 3041 is provided with a limit groove 3044 and a guide limit protrusion 3091 that restrict the limit protrusion 3091 to move within a certain height interval from below the guide tube hole 3041 To the guide slot in the limit slot 3044. As shown in FIG. 31, the limiting groove 3044 is a vertically running groove whose upper end is close to the upper end of the guide tube hole 3041, and the guide groove includes a vertically running guide groove 3045 and a horizontally running guide groove 3043, vertical The lower end of the guiding groove 3045 communicates with the space below the guide tube hole 3041, the upper end of the vertically guiding groove 3045 communicates with one end of the horizontal guiding groove 3043, and the other end of the horizontal guiding groove 3043 is limited The middle of the bit slot 3044 is in communication. The guide tube hole in this embodiment is actually the same as the shape of the guide tube hole in Embodiment 6.

In the following, in conjunction with Embodiments 9 to 12, a connection plate movement control device for indirectly controlling the up and down movement of the connection plate by controlling the up and down movement of the eccentric block will be described. This type of connection board movement control device includes an eccentric block, an eccentric block clamping unit, a connection unit, a movement guide unit, a manipulation unit, and a clamping unit. According to the different connection units, this type of connection plate movement control device can be divided into two types with a connection spring and without a connection spring.

Example 9

As shown in FIG. 32, this embodiment provides a second way for a gear box transmission type electric fan, and the connection unit is a connection board movement control device without a connection spring. As shown in FIGS. 32, 33, and 35, the connecting plate of this embodiment is a flat plate connecting plate 201. The connecting plate 201 is mounted on a cylinder 0071 with a cylinder screw 007, and the cylinder screw 007 is fixed on an eccentric Below block 003. The eccentric block 003 is provided with a coupling hole 0033 for inserting the shaking head rotating shaft 016. The cross section of the coupling hole 0033 is a non-circular shape. Matchingly, the cross section of the portion 0161 in the coupling hole 0033 is also inserting Round shape. The eccentric block 003 can move up and down along the oscillating head rotating shaft 016 while rotating with the oscillating head rotating shaft 016. During the movement, the lower end of the oscillating head rotating shaft 016 is always in the coupling hole 0033 of the eccentric block 003 without going from the lower end of the eccentric block 003 Stick out. More preferably, in this embodiment, the portion 0161 of the shaking head rotating shaft 016 inserted into the coupling hole 0033 is a spline shaft, and the coupling hole 0033 is a corresponding spline hole.

As shown in FIGS. 32 and 35, the eccentric block clamping unit 311 has a "U"-shaped clamping opening 3111, and the eccentric block 003 is provided with a clamping portion 0032 that cooperates with the "U"-shaped clamping opening 3111. The holding part 0032 has a dumbbell shape. The eccentric block clamping unit 311 can hold the eccentric block 003 to move up and down along the axis of rotation of the oscillating head 016, but does not prevent the eccentric block 003 from rotating along the axis of rotation 016 of the oscillating head.

As shown in FIG. 35, the connecting unit is a connecting rod 302, the lower end of the connecting rod 302 is fixedly connected to the eccentric block clamping unit 311, and the upper end of the connecting rod 302 is an independently rotatable connecting stud that is independently rotatable connected to the manipulator 303. As shown in FIG. 32, the mobile guide unit 304 is provided on the gear box base 0021. The mobile guide unit 304 has a guide tube hole 3041 (the guide tube hole is not shown in FIG. 32, and its shape can be seen in FIG. 9). The rod 302 is installed in the guide tube hole 3041 and can move up and down in the guide tube hole 3041. The connecting rod 302 above the guide tube hole 3041 is also provided with a blocking portion 3025 for preventing the upper end of the connecting rod 302 from entering the guide tube hole 3041. In order to be able to install the upper connecting rod 302, the guide tube hole 3041 is provided with a radial groove 3042 through which the blocking portion 3025 passes from bottom to top. The blocking portion 3025 and the radial groove 3042 should cooperate so that the radial groove 3042 is not directly below the blocking portion 3025 when the connecting rod 302 is assembled.

In order to make the connection board movement control device of this embodiment work normally, the rotating shaft of the shaking head must be immovable in the vertical direction. For a gearbox-driven electric fan, there are roughly two types of ways to achieve that the rotating shaft of the shaking head is not movable in the vertical direction. The first category is to use a fixed object to resist above the shaking gear, and at the same time to make the shaking gear downward The gear box seat is held, so that the rotating shaft of the shaking head cannot move up and down; the second type is to fix a barrier on the part of the gear box seat extending downward from the rotating axis of the shaking head, so that the blocking object is raised against the gear box seat, and the shaking gear Then the gearbox seat is pressed downwards, so that the shaking shaft cannot move up and down.

As shown in FIGS. 32 and 33, this embodiment adopts the first type of method for restricting the up-and-down movement of the rotating shaft of the shaking head. As shown in FIG. 33, an arc-shaped downward protruding portion 00221 is provided under the gear box cover 0022. The lower bottom surface of the downward protruding portion 00221 abuts the upper end surface of the shaking gear 017, and the lower end surface of the shaking gear 017 abuts Gear box seat 0021. Figure 34 also shows the second type of specific ways to restrict the up-and-down movement of the shaking axis. As shown in FIG. 34, the shaking head rotating shaft 016 is provided with a threaded section 0162 on its downwardly extending portion of the gear box base 0021, and a nut 0163 is installed on the threaded section 0162, and the upper end of the nut 0163 abuts upward The gear box base 0021, and the shaking head gear 017 abut the gear box base 0021, so that the shaking head rotating shaft 016 cannot move up and down.

Example 10

As shown in FIG. 36, this embodiment provides a second way for a gear box transmission type electric fan, and the connection unit is a connection plate movement control device with a connection spring. As shown in FIGS. 36 and 37, the moving guide unit 304 is provided on the gear box base 0021. The moving guide unit 304 has a guide tube hole 3041 (the guide tube hole is not shown in FIG. 36, and its shape is shown in FIG. 26). The connection unit is installed in the guide tube hole 3041. The connecting unit includes a lower connecting rod 307, a connecting spring 308, and an upper connecting rod 309. The upper end of the lower connecting rod 307 is connected to the lower end of the connecting spring 308, and the lower end is fixedly connected to the eccentric block clamping unit 311. The lower end of the upper connecting rod 309 is connected to the upper end of the connecting spring 308, and the upper end is provided with an independently rotatable connecting stud that is independently rotatable connected to the operating member 303. The upper connecting rod 309 is provided with a radially protruding limiting convex portion 3091 near the upper end of the spring connecting portion. Correspondingly, referring to FIG. 26, the inner wall of the guide tube hole 3041 is provided with a limiting groove 3044 and a guide groove. The limiting protrusion 3091 cooperates with the limiting groove 3044, so that the upper connecting rod 309 can only move up and down within a certain height interval.

Example 11

As shown in FIG. 38, this embodiment provides a second approach, which is applied to an independent synchronous motor-type electric fan, and the connection unit is a connection board movement control device without a connection spring. As shown in FIG. 38, the connecting unit is a connecting rod 302. The lower end of the connecting rod 302 is fixedly connected to the eccentric block clamping unit 311, and the upper end of the connecting rod 302 is rotatably connected to the manipulator 303 independently. The moving guide unit 304 is a guide tube, and a mounting plate is fixedly connected to the lower end of the guide tube, and the mounting plate is fixed on the bracket 015 by two screws. A guide tube hole is formed in the guide tube, and the connecting rod 302 is installed in the guide tube hole and can move up and down in the guide tube hole. A blocking portion 3025 is also provided on the connecting rod 302 above the guide tube hole, for preventing the upper end of the connecting rod 302 from entering the guide tube hole 3041. In order to be able to install the upper connecting rod 302, a radial groove 3042 is provided in the guide tube hole for the blocking portion 3025 to pass from bottom to top. When the connecting rod 302 is assembled, the radial groove 3042 is not located directly under the blocking portion 3025. An annular restricting portion 3026 is also provided on the connecting rod 302 under the guide tube hole. The annular restricting portion 3026 and the blocking portion 3025 jointly limit the up and down movement of the connecting rod 302 within a certain height interval.

Example 12

As shown in FIG. 39, this embodiment provides a second approach, which is applied to an independent synchronous motor-type electric fan, and the connection unit is a connection board movement control device with a connection spring. Referring to FIGS. 37 and 39, the connecting unit of this embodiment includes a lower connecting rod 307, a connecting spring 308, and an upper connecting rod 309. The upper end of the connecting spring 308 is connected to the lower end of the upper connecting rod 309, and the lower end thereof is connected to the upper end of the lower connecting rod 307. The lower end of the lower connecting rod 307 is fixedly connected to the eccentric block clamping unit 311, the upper end of the upper connecting rod 309 and the manipulating member 303 can be independently rotated and connected, and the upper connecting rod 309 is also provided with a radially protruding limiting convex portion 3091. Referring to 31 and 39, the moving guide unit 304 of this embodiment is a guide tube detachably fixed on the bracket 015, a guide tube hole 3041 is formed in the guide tube, and the connection unit is installed in the guide tube hole 3041. The inner wall of the guide tube hole 3041 is provided with a limiting groove 3044 and guide

grooves

3043 and 3045.

For the third way of the connection board movement control device, that is, the connection board movement control device that indirectly controls the up and down movement of the connection plate by controlling the movement of the shaking head rotating shaft up and down, the preferred solution includes an eccentric block, a shaking head rotating shaft, a connection unit, Mobile guide unit, control unit and clamping unit. According to the different connection units, the preferred solution of this type of connection plate movement control device can be divided into two types with connection springs and without connection springs.

The specific implementation of the preferred solution of this type of connection board movement control device will be described below in conjunction with Embodiments 13 and 14.

Example 13

As shown in FIG. 40, this embodiment provides a third approach, and the connection unit does not have a connection plate movement control device with a connection spring. As shown in FIGS. 40 and 41, the connecting plate in this embodiment is a flat connecting plate 201. The connecting plate 201 is sleeved on a cylinder 0071 with a cylinder screw 007, and the cylinder screw 007 is fixed on an eccentric block 003 Below. The upper and lower surfaces of the eccentric block 003 are provided with pin holes 0034 that cooperate with the trimming stud 0164 at the lower end of the shaking head rotating shaft 016. After the trimming stud 0164 is inserted into the pin hole 0034, the screw 018 is screwed into the screw hole at the lower end of the trimming stud 0164. Realize the fixed connection of the shaking head rotating shaft 016 and the eccentric block 003. The shaking head rotating shaft 016 passes through the center of the shaking head gear 017, and the two are fixedly connected. The shaking gear 017 meshes with the transmission gear 019, and the transmission gear 019 is fixed on the transmission gear shaft 020. The transmission gear shaft 020 is provided with an enlarged section 0201 above the transmission gear 019. A worm gear 021 meshing with a worm at the rear end of the motor is sleeved on the outside of the enlarged section 0201.

As shown in FIGS. 40 and 41, the distance between the upper and lower end faces of the transmission gear 019 is larger than the distance between the upper and lower end faces of the shaking head gear 017, and the shaking head gear 017 can always maintain and transmit during the up and down movement of the shaking head rotating shaft 016 The gear 019 is engaged. The oscillating head rotating shaft 016 above the oscillating head gear 017 is divided into two sections, of which the lower section is a larger diameter section 0165, the upper section is a smaller diameter section 0166, and the top of the smaller diameter section 0166 is an independent Turn the connecting column head. The smaller diameter section 0166 can pass through the gear case cover 0022 and extend above the gear case cover 0022, while the larger diameter section 0165 cannot pass through the gear case cover 0022. The connecting unit is a connecting piece 312, the upper end of which is an independently rotatable connecting stud, the lower end of which is an independently rotatable connecting pipe head, and the side body is also provided with a radially protruding convex portion 3121. The upper end of the shaking head rotating shaft 016 passes through the gear box cover 0022, protrudes above the gear box cover 0022, and is independently rotatable connected with the lower end of the connecting member 312, and the upper end of the connecting member 312 is independently rotatable connected with the lower end of the control member 303. The moving guide unit 304 is two uprights fixed on the gear box cover 0022, and a gap is formed between the two uprights, and the convex portion 3121 of the connecting piece 312 is caught in the gap so that the connecting piece 312 can move up and down in the vertical direction , But cannot turn.

Example 14

As shown in FIG. 42, this embodiment provides a third approach, and the connection unit has a connection plate movement control device with a connection spring. Referring to FIGS. 31, 42, and 43, the moving guide unit 304 of this embodiment is a guide tube detachably fixed to the gear box cover 0022, a guide tube hole 3041 is formed in the guide tube, and the connection unit is installed in the guide tube hole 3041. The connecting unit includes a lower connecting piece 313, a connecting spring 308, and an upper connecting rod 309. The upper end of the connecting spring 308 is connected to the lower end of the upper connecting rod 309, and the lower end is connected to the upper end of the lower connecting member 313. The upper connecting rod 309 is provided with a radially protruding limiting convex portion 3091, and an upper end thereof is provided with an independently rotatable connecting column head which is independently rotatable connected with the operating member 303. The lower connecting piece 313 is provided with a radial protrusion 3131, and its lower end can be independently connected to the upper end of the shaking head rotating shaft 016. The inner wall of the guide tube hole 3041 is provided with a limiting groove 3044 and guide

grooves

3043 and 3045. The limiting protrusion 3091 cooperates with the limiting groove 3044, so that the upper connecting rod 309 can only move up and down within a certain height interval. At the same time, the vertically running guide groove 3045 and the radial protrusion 3131 of the lower connecting piece 313 cooperate, so that the lower connecting piece 313 can only move up and down in the guide tube hole 3041, and cannot rotate.

For the preferred solution of the moving control device for the connecting plate in the third way above, the connecting unit and the moving guide unit can also be removed to obtain another technical solution, in which the lower end of the rotating shaft of the shaking head is fixedly connected to the eccentric block, and the upper end It runs vertically through the gearbox and is connected to the control unit. As shown in FIG. 40, for the connection plate movement control device in the above-mentioned Embodiment 13, as long as the movement guide unit 304 and the connection piece 312 are removed, and the control piece 303 is connected to the upper end of the shaking head rotating shaft 016, the specifics of the solution can be obtained Implementation. It should be noted that, in this type of solution, the rotation direction of the rotating shaft of the shaking head should be such that the gear post moves from the vertical groove of the gear groove into the horizontal groove.

For the moving control device of the connecting plate in the third way, in addition to the fixed connection, the shaking head rotating shaft and the shaking head gear can also be a movable connection. Figures 44, 45, and 46 show a specific connection method for the movable connection between the shaking shaft and the shaking gear. As shown in FIGS. 44, 45, and 46, the swivel head rotating shaft 016 is provided with an enlarged portion 0167. The enlarged portion 0167 has a rectangular cross section. A truncated circular tube 022 is fixed above the middle of the shaking head gear 017, and a rectangular hole 0221 is provided in the round tube 022 to cooperate with the enlarged portion 0167 of the shaking head rotating shaft 016. In the center of the bottom of the wobble gear 017, there is a round hole 0171 that allows the wobble rotation shaft 016 under the enlarged portion 0167 to pass through, but does not allow the enlarged portion 0167 to pass through. The shaking head rotating shaft 016 is installed in the round tube 022. The shaking head rotating shaft 016 can move up and down in the vertical direction while rotating with the shaking head gear 017. After being installed in the gear box, the upper end face of the circular tube 022 abuts the gear box cover, and the lower end face of the shaking head gear 017 abuts the gear box seat. Therefore, the shaking head gear 017 cannot move in the vertical direction.

Claims

A shaking head angle adjustment mechanism, characterized in that it includes a supporting base, a connecting plate, and a connecting plate movement control device; more than two fixed columns are fixed on the supporting base; the connecting plate is sleeved on a moving column, and It can rotate around the moving column, and the connecting plate includes a connecting plate; the connecting plate is provided with a fixed column connecting hole for each fixed column; the connecting plate can be sleeved on the corresponding fixed column through each fixed column connecting hole And rotate around it to achieve shaking head; the connecting plate movement control device controls the moving of the connecting plate up and down to switch the fixed column around which the connecting plate rotates, so as to switch between more than two shaking head angles.
The shaking head angle adjusting mechanism according to claim 1, wherein the number of the fixed columns is 2 to 4; the connecting plate movement control device switches the rotation around the connecting plate by controlling the moving of the connecting plate up and down Fixed column to switch between 2 to 4 shaking head angles.
The shaking head angle adjustment mechanism according to claim 1, wherein the connecting plate is further provided with a moving column connecting hole or a connecting tube is fixed, and the connecting plate passes through the moving column connecting hole or the connecting tube Set on the sports column.
The shaking head angle adjustment mechanism according to claim 1, wherein a first fixed column and a second fixed column are fixed on the support base; a small rod is connected to the lower end of the second fixed column, and passes through the small rod Fixed on the support base; the second fixed column is located above the first fixed column, the thin rod and the first fixed column are at a corresponding height position; the connecting plate is provided with a track groove, the track groove and The small rods cooperate so that the small rods do not hinder the connection plate from rotating around the first fixed column.
The shaking head angle adjustment mechanism according to claim 1, wherein a first fixing column and a second fixing column are fixed on the support base, the second fixing column is located above the first fixing column; the second fixing The upper end of the column is fixedly connected to one end of a horizontally horizontal fixed column connecting rod, and is fixed on the support base through the fixed column connecting rod.
The shaking head angle adjustment mechanism according to claim 1, wherein a first fixing column, a second fixing column, and a third fixing column are fixed on the support base; the first fixing column is connected to the lower end of the second fixing column Rod, and fixed on the support base by the first thin rod; the second fixed rod is connected to the lower end of the third fixed column, and is fixed on the support base by the second thin rod; the third fixed column is located in the second fixed Above the column side, the second fixed column is located above the first fixed column side; the connecting plate is also provided with a first track groove and a second track groove; the first track groove cooperates with the first small rod, The first thin rod does not prevent the connecting plate from rotating around the first fixed column; the second track groove cooperates with the second thin rod so that the second small rod does not prevent the connecting plate from rotating around the first fixed column and around The second fixed column rotates.
The shaking head angle adjustment mechanism according to claim 1, wherein a first fixing column, a second fixing column and a third fixing column are fixed on the support base; a small rod is connected to the lower end of the second fixing column, And fixed on the support base through the small rod; the upper end of the third fixing column is fixedly connected with one end of a horizontally horizontal fixing column connecting rod, and is fixed on the support base through the fixing column connecting rod; the third fixing The column is located above the second fixed column side, and the second fixed column is located above the first fixed column side; the connecting plate is also provided with a track groove, the track groove cooperates with the small rod so that the small rod does not hinder the connection The plate rotates around the first fixed column.
The shaking head angle adjusting mechanism according to claim 4 or 5, wherein the upper end of the first fixed column and the lower end of the second fixed column are each provided with a chamfered section.
The shaking head angle adjustment mechanism according to claim 6 or 7, wherein the upper end of the first fixed column, the upper and lower ends of the second fixed column, and the lower end of the third fixed column are each provided with an inverted Angled chamfered section.
The shaking head angle adjustment mechanism according to claim 1, wherein the connection plate movement control device comprises a connection plate clamping unit, a connection unit, a movement guide unit, a manipulation unit and a clamping unit; The lower end is connected to the connecting plate clamping unit, and the upper end of the connecting unit is connected to the control unit; the clamping unit cooperates with the control unit, so that the control unit can be maintained at more than two determined height positions; during the shaking of the head, By manipulating the manipulating unit, the connecting unit and the connecting plate clamping unit can be sequentially driven, and then the connecting plate can be clamped to move up and down, thereby realizing the switching of the fixed post around which the connecting plate rotates; The connection unit can play a role of guiding the movement of the control unit when it moves up and down.
The shaking head angle adjustment mechanism according to claim 1, wherein the connection plate movement control device includes an eccentric block, an eccentric block clamping unit, a connection unit, a movement guide unit, a manipulation unit, and a clamping unit; the connection The lower end of the unit is connected to the eccentric block clamping unit, and the upper end of the connection unit is connected to the control unit; the clamping unit cooperates with the control unit so that the control unit can be maintained at more than two determined height positions; during the shaking of the head By manipulating the manipulation unit, the connection unit and the eccentric block clamping unit can be driven in sequence, and the eccentric block is clamped to move up and down, thereby driving the connection plate to move up and down together, to achieve the switching of the fixed column around which the connection plate rotates The moving guide unit can play the role of moving and guiding the connecting unit during the up and down movement of the connecting unit with the operating unit.
The oscillating head angle adjusting mechanism according to claim 11, wherein the eccentric block is movably connected to the oscillating head rotation axis, and the eccentric block can move up and down along the oscillating head rotation axis while rotating with the oscillating head rotation axis.
The shaking head angle adjustment mechanism according to claim 1, wherein the connecting plate movement control device comprises an eccentric block, a shaking head rotating shaft, a control unit and a clamping unit; the lower end of the shaking head rotating shaft and the eccentric block Fixed connection, the upper end of which passes vertically through the gearbox and is connected to the control unit; the clamping unit cooperates with the control unit so that the control unit can be maintained at more than two determined height positions; the control unit can be During the shaking process, the rotating shaft of the shaking head and the eccentric block are moved up and down, which in turn drives the connecting plate to move up and down together, so as to realize the switching of the fixed column around which the connecting plate rotates.
The shaking head angle adjustment mechanism according to claim 13, wherein the connection plate movement control device further comprises a connection unit and a movement guide unit, the lower end of the connection unit is connected to the upper end of the rotation axis of the shaking head, and the upper end of the connection unit is connected to The lower end of the control unit is connected; the control unit can drive the connecting unit, the rotating shaft of the shaking head, and the eccentric block to move up and down in the process of shaking the head, thereby driving the connecting plate to move up and down together, and to realize the switching of the fixed column around which the connecting plate rotates; The moving guide unit can play the role of moving and guiding the connecting unit during the up and down movement of the connecting unit with the manipulating unit.
The oscillating head angle adjusting mechanism according to claim 13 or 14, wherein the oscillating head rotating shaft passes through the center of the oscillating head gear; the oscillating head rotating shaft and the oscillating head gear are fixedly connected, and the oscillating head gear can move up and down with the oscillating head rotating shaft During the movement, it always maintains the meshing state with the transmission gear; or, the swinging head rotating shaft and the shaking head gear are movably connected, the shaking head gear cannot be moved in the vertical direction, and the shaking head rotating shaft can move up and down in the vertical direction while rotating with the shaking head gear mobile.
The shaking head angle adjustment mechanism according to claim 10, wherein the connecting plate clamping unit is a connecting plate clamping member, and the connecting plate clamping member includes an upper clamping plate, a lower clamping plate and Connecting portion; one end of the upper clamping plate and the lower clamping plate is fixedly connected to the connecting portion, and a gap for the connection plate to pass through is formed between the upper clamping plate and the lower clamping plate; the connection plate clamping The piece is fixedly connected to the connection unit through its connection portion.
The shaking head angle adjustment mechanism according to claim 11 or 12, wherein the eccentric block clamping unit has a "U" shaped clamping opening, and the eccentric block is provided with a "U" shape A clamping portion matched with the clamping opening, the clamping portion is in a dumbbell shape.
The oscillating head angle adjusting mechanism according to claim 10, 11 or 12 or 13 or 14, wherein the clamping unit is a gear tube fixed on the motor protective shell, and the control unit is a control The control element is installed in the gear tube; the control element is provided with a gear post, and a corresponding gear groove is provided on the inner wall of the gear tube; or, the inner wall of the gear tube A gear post is provided, and a corresponding gear groove is provided on the operating member; the gear post cooperates with the gear groove, so that the operating member can be maintained at more than two determined height positions.
The shaking head angle adjustment mechanism according to claim 10, 11 or 12 or 13 or 14, wherein the clamping unit is a gear tube fixed on the motor protective shell, and the gear tube is on the inner wall There are two or more ring-shaped gear grooves; the control unit is installed in the gear tube and can move up and down in the gear tube; the control unit includes a control piece, a gear spring and two steel balls; The control member is provided with a lateral through hole, the gear spring and two steel balls are installed in the lateral through hole, the two steel balls are located at both ends of the gear spring; the annular gear groove and the steel ball, gear The springs cooperate so that the control member can be maintained at more than two determined height positions.
The shaking head angle adjustment mechanism according to claim 10, wherein the moving guide unit has a guide tube hole, and the connecting unit is a connecting rod; the connecting rod is installed in the guide tube hole to connect The rod can move up and down in the guide pipe hole, but cannot rotate; the connecting rod located above the guide pipe hole is also provided with a blocking part for preventing the upper end of the connecting rod from entering the guide pipe hole.
The shaking head angle adjustment mechanism according to claim 11 or 12, wherein the moving guide unit has a guide tube hole, and the connection unit is a connecting rod; the connecting rod is installed in the guide tube hole , The connecting rod can move up and down in the guide pipe hole; the connecting rod located above the guide pipe hole is also provided with a blocking part for preventing the upper end of the connecting rod from entering the guide pipe hole.
The shaking head angle adjustment mechanism according to claim 14, wherein the connecting unit is a connecting piece, the upper end of the connecting piece is independently rotatable connected to the control unit, and the lower end of the connecting piece is independently rotatable connected to the upper end of the shaking head rotating shaft The moving guide unit is fixed above the gear box cover, and the moving guide unit cooperates with the connecting piece so that the connecting piece can move up and down in the vertical direction, but cannot rotate.
The shaking head angle adjustment mechanism according to claim 10, wherein the moving guide unit has a guide tube hole, and the connection unit is installed in the guide tube hole; the connection unit includes a connection spring and an upper connection Rod and lower connecting rod, the upper end of the connecting spring is connected to the upper connecting rod, and the lower end of the connecting spring is connected to the lower connecting rod; the upper connecting rod is provided with a limiting protrusion, and the inner wall of the guide tube hole is provided Corresponding limit grooves and guide grooves; or, the upper connecting rod is provided with limit grooves and guide grooves, and the inner wall of the guide tube hole is provided with corresponding limit protrusions; The position groove cooperates, so that the upper connecting rod can only move up and down within a certain height interval; the guide groove is used to guide the limiting protrusion into the limiting groove; the lower connecting rod can be in the guide tube hole Move up and down, but cannot turn.
The shaking head angle adjustment mechanism according to claim 11 or 12, wherein the moving guide unit has a guide tube hole, and the connection unit is installed in the guide tube hole; the connection unit includes a connection spring, An upper connecting rod and a lower connecting rod, the upper end of the connecting spring is connected to the upper connecting rod, and the lower end of the connecting spring is connected to the lower connecting rod; the upper connecting rod is provided with a limiting convex part, and the inner wall of the guide tube hole Equipped with corresponding limit grooves and guide grooves; or, the upper connecting rod is provided with limit grooves and guide grooves, and the inner wall of the guide tube hole is provided with corresponding limit protrusions; the limit protrusions Cooperate with the limit groove, so that the upper connecting rod can only move up and down within a certain height interval; the guide groove is used to guide the limit protrusion into the limit groove.
The shaking head angle adjustment mechanism according to claim 14, wherein the moving guide unit has a guide tube hole, and the connection unit is installed in the guide tube hole; the connection unit includes a connection spring and an upper connection Rod and lower connecting piece, the upper end of the connecting spring is connected to the upper connecting rod, and the lower end of the connecting spring is connected to the lower connecting piece; the upper connecting rod is provided with a limiting convex part, and the inner wall of the guide tube hole is provided Corresponding limit grooves and guide grooves; or, the upper connecting rod is provided with limit grooves and guide grooves, and the inner wall of the guide tube hole is provided with corresponding limit protrusions; The positioning groove cooperates, so that the upper connecting rod can only move up and down within a certain height interval; the guiding groove is used to guide the limiting protrusion into the limiting groove; the lower connecting piece can be in the guiding pipe hole It can move up and down, but cannot rotate; the lower end of the lower connecting piece and the upper end of the rotating shaft of the shaking head can be independently rotated and connected.