CN108184470A - A kind of altitude pruning scissors - Google Patents

Abstract

The invention provides a kind of high-altitude pruning shears, which includes a hand-held part, a connecting part, a cutting part and a driving mechanism. The cutting part includes a fixed blade and a movable blade hinged on the fixed blade. In the section, the connecting part includes: a connecting rod connecting the handle part and the fixed blade of the cutting part and a pull rod connected between the driving end of the driving mechanism and the moving blade of the cutting part, and the connecting rod of the connecting part Both the tie rod and the pull rod are length-adjustable structures, and the pruning height of the high-altitude pruning shears can be adjusted by adjusting the length of the connecting rod and the pull rod. The weight is distributed on the hand-held part, which makes the overall structure light and easy to operate, and there is no need to lengthen the distributed power supply line, so the electricity is safe; at the same time, the connecting rod and the pull rod of the connecting part are both adjustable in length. By adjusting the connecting rod And the length of the pull rod, and then adjust the pruning height of the high-altitude pruning shears.

Description

high-altitude pruning shears

technical field

The invention relates to the field of pruning shears, in particular to high-altitude pruning shears which are portable, simple and safe to operate, and can adjust the pruning height.

Background technique

In order to regulate the growth and results of fruit trees, fruit farmers often need to prune fruit trees. For taller fruit trees, most of the existing pruning shears are manual, and the steel wire rope connected to the handle pulls the scissors for pruning, which is time-consuming and laborious. Existing pruning shears are because too long in addition, although some have adopted the structure of telescopic rod, just reduced the length of pruning shears to a certain extent, carry still inconvenient.

Electric pruning shears use electric motors as power, saving time and effort, but it is more difficult for electric scissors on the market to prune higher branches. Such as the Chinese Utility Model Publication Patent Application No. CN203537935 is a novel length-adjustable electric fruit tree pruning shears. This patent document realizes electric pruning shears to adapt to pruning operations of different heights through an adjustable length extension rod, but because the motor Both the scissors and scissors are set on the head, and the extension rod is used as the part of the electrical connection to conduct the power supply. On the one hand, the center of gravity is far away from the hand-held part of the tail, which is inconvenient to use; Hidden danger.

Contents of the invention

For this reason, the invention provides a kind of high-altitude pruning shears that is light, easy to operate, safe, and can adjust the height of pruning.

In order to achieve the above object, a kind of high-altitude pruning shears provided by the present invention includes a hand-held part, a connecting part, a cutting part and a driving mechanism, and the cutting part includes a certain blade and a movable blade hinged on the fixed blade. The driving mechanism is arranged in the hand-held part, and the connecting part includes: a connecting rod connecting the hand-held part and the fixed blade of the cutting part and a pull rod connected between the driving end of the driving mechanism and the moving blade of the cutting part. Both the connecting rod and the pull rod of the connecting part are length-adjustable structures, and the pruning height of the high-altitude pruning shears can be adjusted by adjusting the length of the connecting rod and the pull rod.

In a preferred solution of the present invention, the tie rod of the connecting part includes a plurality of tie rod units, and the plurality of tie rod units are detachably connected end to end, and the length of the tie rod can be adjusted by connecting different numbers of tie rod units.

Further, the detachable connection structure between the connecting rod units is screw connection, insertion connection or card connection.

Still further, the detachable connection structure between the connecting rod units is clamping, and the head end of the connecting rod unit is provided with a piercing hole and a snapping slot connected to the piercing hole, so The tail end of the connecting rod unit is provided with a clamping joint and a conflicting block, the clamping joint passes through the hole and is clamped to the clamping slot, and the end of the connecting rod unit is in contact with the conflicting end of the tail end. on the block.

Still further, the tie rod unit is made of thin steel plate.

In another preferred solution of the present invention, the connecting rod of the connecting part includes a plurality of connecting rod units, and the head and tail of the plurality of connecting rod units are detachably connected, and the length of the connecting rod can be adjusted by connecting different numbers of connecting rod units .

Further, the detachable connection structure between the connecting rod units is screw connection, insertion connection or card connection.

In another preferred solution of the present invention, the connecting rod is a hollow tube structure, and the tie rod is sleeved in the connecting rod.

In another preferred solution of the present invention, the fixed blade of the shearing part is also provided with a first clamping part, and the movable blade of the shearing part is provided with a second clamping part, and the fixed blade and the movable blade are provided with a second clamping part. When the blade is cutting, the first clamping portion corresponds to the second clamping portion and forms a clamping structure.

In another preferred solution of the present invention, the driving mechanism includes a driving motor, a screw and a connecting piece, the screw is connected to the driving end of the driving motor, the connecting piece is screwed on the screw, and the connecting piece is connected to The pull rod and the driving motor drive the screw to rotate, and then drive the connecting piece and the pull rod to move along the axial direction of the screw, so as to drive the movable blade of the shearing part.

Further, the drive mechanism also includes a control module and a signal input module, the signal input module is a trigger switch arranged on the handle, the output end of the signal input module is connected to the input end of the control module, and the control module The control output end of the module is connected to the controlled end of the driving motor to control the driving of the driving motor.

Still further, the drive mechanism also includes a first Hall sensor and a second Hall sensor, and the first Hall sensor and the second Hall sensor are arranged at a distance from the moving track of the corresponding connecting member. On the handle, a magnet is also provided on the connecting piece, and the movement of the connecting piece makes the first Hall sensor and the second Hall sensor respectively sense the magnetism of the magnet, and the output is connected to the control module.

The technical solution provided by the invention has the following beneficial effects:

The driving mechanism is arranged in the handle part, the handle part is connected with the fixed blade of the cutting part through a connecting rod, the driving end of the driving mechanism is connected with the moving blade of the cutting part through a tie rod, and the weight is distributed on the handle part, so that The overall structure is light, easy to operate, and there is no need to lengthen the distributed power supply lines, so it is safe to use electricity; at the same time, the connecting rods and pull rods of the connecting part are all length-adjustable structures. By adjusting the lengths of the connecting rods and pull rods, the altitude The pruning height of the pruning shears.

Description of drawings

Fig. 1 shows the three-dimensional schematic diagram of high-altitude pruning shears in the embodiment;

Fig. 2 shows the schematic diagram of partial decomposition of high-altitude pruning shears in the embodiment;

Fig. 3 shows the schematic diagram of the hidden part structure of high-altitude pruning shears in the embodiment;

Fig. 4 shows the exploded schematic view of the partial structure of high-altitude pruning shears in the embodiment;

Fig. 5 shows the structural representation one of the shearing part of high-altitude pruning shears in the embodiment;

Fig. 6 shows the structural schematic diagram two of the cutting part of high-altitude pruning shears in the embodiment;

Fig. 7 is a schematic cross-sectional view of the handle portion of the high-altitude pruning shears in the embodiment.

Detailed ways

To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

Referring to Fig. 1 to Fig. 7, a kind of high-altitude pruning shears provided by the present embodiment includes a handle part 10, a connecting part, a cutting part 20 and a driving mechanism, and the cutting part 20 includes a certain blade 21 and is hinged on The movable blade 22 on the fixed blade 21 , the handle 10 includes an outer shell 11 and an inner tube 12 inserted in the outer shell 11 . The driving mechanism is arranged in the hand-held part 10, and the connecting part includes: a connecting rod connecting the fixed blade 21 of the hand-held part 10 and the cutting part 20; The pull rod between the blades 22, the connecting rod and the pull rod of the connecting part are all length adjustable structures, and the pruning height of the high-altitude pruning shears can be adjusted by adjusting the length of the connecting rod and the pull rod.

Specifically, the drive mechanism includes: a drive motor 51, a screw 52, a connector 53, a control module, a signal input module, a first Hall sensor 561 and a second Hall sensor 562, and the screw 52 connects the The driving end of the driving motor 51, the connecting piece 53 is screwed on the screw rod 52, the connecting piece 53 is connected to the pull rod, the driving motor 51 drives the screw rod 52 to rotate, and then drives the connecting piece 53 and the pulling rod along the direction of the screw rod 52. Moving in the axial direction realizes the driving of the movable blade 22 of the shearing part 20 . The first Hall sensor 561 and the second Hall sensor 562 are arranged at intervals on the inner tube body 12 of the handle 10 corresponding to the movement track of the connecting piece 53, and a magnet (not shown) is also arranged on the connecting piece 53 shown), the movement of the connecting member 53 makes the first Hall sensor 561 and the second Hall sensor 562 respectively sense the magnetism of the magnet, and the output is connected to the control module, and the control module is integrated on a circuit board 54, the signal input module is a trigger switch 55 arranged on the handle 10, the output end of the signal input module is connected to the input end of the control module, and the control output end of the control module is connected to the drive motor 51 The controlled end to control the drive of the drive motor 51.

Further, the driving motor 51 is powered by a battery 60, and the battery 60 is installed in the hand-held part 10 without an external power supply, which is easy to operate and has wide applicability.

Further, in this embodiment, a guide sleeve 57 is also included, and the connecting piece 53 is passed through the guide sleeve 57 to prevent deviation.

The operating principle of the drive mechanism is as follows: pull the trigger switch 55 to complete a signal input, the control module controls the drive motor 51 to drive the connecting piece 53 to move down, and the moving down of the connecting piece 53 pulls the movable blade 22 of the shearing part 20 through the pull rod When the cutting operation is performed, when the connector 53 moves down to the position corresponding to the second Hall sensor 562, the second Hall sensor 562 senses the magnetic field of the magnet and outputs the signal to the control module, and the control module controls the drive motor 51 to stop ; When the trigger switch 55 is released, the control module controls the drive motor 51 to drive the connecting piece 53 to move up, and the moving up of the connecting piece 53 drives the moving blade 22 of the cutting part 20 to reset and open through the pull rod. When the connecting piece 53 moves up to the corresponding When the first Hall sensor 561 is in the position, the first Hall sensor 561 senses the magnetic field of the magnet and outputs a signal to the control module, and the control module controls the driving motor 51 to stop to realize the cutting operation. The drive mode of the drive mechanism is to convert the rotation of the drive motor 51 into a reciprocating mode. Compared with existing telescopic devices such as telescopic cylinders, the drive motor 51 is small in size and easy to control; this mode also solves the problem that the motor is at the tail. Keeping the center of gravity at the rear ensures that the torque of the motor is not lost.

Further, the connecting rod includes a plurality of connecting rod units 30, and the connecting rod units 30 are detachably connected end to end, and the length of the connecting rod can be adjusted by connecting different numbers of connecting rod units 30. Specifically, the connecting rod is a hollow pipe structure, the connecting rod unit 30 is a hollow pipe unit, the head end of the connecting rod unit 30 is provided with an external thread 31, and the tail end of the connecting rod unit 30 is provided with Internal thread (not shown), the detachable connection between the head and tail ends of the adjacent connecting rod units 30 is achieved through the screw connection of the external thread 31 and the internal thread, wherein one end of the connecting rod combined is inserted into the handle In the inner tube body 12 of 10, the other end thereof is fixedly connected to the fixed blade 21 through a locking structure (conventional structure). In other embodiments, the detachable connection structure between the connecting rod units 30 is plug-in or snap-in.

The tie rod is sleeved in the connecting rod, and the tie rod of the connecting part includes a plurality of tie rod units 40, and the head and tail of the plurality of tie rod units 40 are detachably connected, and the length of the tie rod can be adjusted by connecting different numbers of tie rod units 40 . Specifically, the detachable connection structure between the tie rod units 40 is clamping, and the head end of the tie rod unit 40 is provided with a piercing hole 41 and a snap slot 42 arranged through the piercing hole 41 , the rear end of the pull rod unit 40 is provided with a clamping joint 43 and a collision block 44, the clamping joint 43 passes through the hole 41 and is clamped to the clamping slot 42, the head end of the pull rod unit 40 The end collides with the collision block 44 at the tail end to realize a fixed connection. One end of the combined pull rod is plugged into the connecting piece 53 of the driving mechanism, and the other end is hinged to the movable blade 22 . In other embodiments, the detachable connection structure between the tie rod units 40 may also be screw connection or plug connection.

Further, the material of the tie rod unit 40 is a thin steel plate material, so that the tie rod unit 40 can be elastically bent under the action of an external force to realize quick connection and quick disassembly. Referring to Fig. 4, the tie rod unit 40 exposed through the piercing hole 41 and the clamping slot 42 in Fig. 40 is defined as the second tie rod unit 402. During quick connection, the clip joint 43 at the tail end of the second tie rod unit 402 is inserted into the piercing hole 41 at the head end of the first tie rod unit 401. At this time, the first tie rod unit 401 The end of the head end is located at the upper end of the collision block 44, as long as the head end of the first tie rod unit 401 is pressed, the head end of the first tie rod unit 401 can be elastically deformed to make it bend, and then the first tie rod unit 401 is pulled in the opposite direction Or the second pull rod unit 402, so that the clamping joint 43 is clamped in the clamping slot 42. At this time, the end of the first end of the first pull rod unit 401 just breaks away from the top of the collision block 44, and recovers and deforms to collide with the collision block 44. , so as to achieve quick connection. During quick release, bend the first tie rod unit 401 or the second tie rod unit 402, the end of the first end of the first tie rod unit 401 is separated from the conflicting block 44, and then push the first tie rod unit 401 or the second tie rod unit 402 in the opposite direction, Make the clamping joint 43 disengage from the clamping slot 42 into the through hole 41 , so as to realize quick disassembly. It has the characteristics of easy operation and so on.

The fixed blade 21 of the shearing part 20 is also provided with a first clamping part 23, and the movable blade 22 of the shearing part 20 is provided with a second clamping part 24, and the fixed blade 21 and the movable blade 22 When shearing, the first clamping portion 23 corresponds to the second clamping portion 24 and forms a clamping structure. When trimming branches, the clamping structure shell clamps the cut branches to the post to prevent them from falling.

Further, in this embodiment, the tie rods and connecting rods of the connecting part are all multi-stage detachable connections to achieve length adjustment. In other embodiments, telescopic sleeve rods can also be used to achieve length adjustment. When adopting the telescopic sleeve rod, etc., the telescopic function is locked with the locking piece to form a fixed structure, which will not affect the actual driving operation due to the telescopic function, and achieve the same technical effect.

Through the technical solution provided by the present invention, the driving mechanism is arranged in the hand-held part, the hand-held part is connected to the fixed blade of the shearing part through a connecting rod, and the driving end of the driving mechanism is connected to the movable blade of the shearing part through a pull rod. The weight is distributed on the hand-held part, which makes the whole structure light and easy to operate, and there is no need to lengthen the distributed power supply line, so the electricity is safe; at the same time, the connecting rod and the pull rod of the connecting part are both adjustable in length. By adjusting the connecting rod And the length of the pull rod, and then adjust the pruning height of the high-altitude pruning shears.

Although the present invention has been particularly shown and described in conjunction with preferred embodiments, it will be understood by those skilled in the art that changes in form and details may be made to the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Making various changes is within the protection scope of the present invention.

Claims (10)

1. A high-altitude pruning shears, comprising a hand-held portion, a connecting portion, a shearing portion and a drive mechanism, the shearing portion comprising a certain blade and a moving blade hinged on the fixed blade, characterized in that: the drive mechanism Set in the handle part, the connection part includes: a connecting rod connecting the handle part and the fixed blade of the cutting part and a pull rod connected between the driving end of the drive mechanism and the moving blade of the cutting part, the connecting part Both the connecting rod and the pull rod are length-adjustable structures, and the pruning height of the high-altitude pruning shears can be adjusted by adjusting the length of the connecting rod and the pull rod. 2. The high-altitude pruning shears according to claim 1, characterized in that: the pull rod of the connecting part comprises a plurality of pull rod units, a plurality of the pull rod units are detachably connected end to end, by connecting different numbers of pull rod units, and then Adjust the length of the tie rod. 3. The high-altitude pruning shears according to claim 2, characterized in that: the detachable connection structure between the tie rod units is screw connection, insertion connection or clip connection. 4. The high-altitude pruning shears according to claim 3, characterized in that: the detachable connection structure between the tie rod units is a snap connection, and the head end of the tie rod unit is provided with a piercing hole and connected with the piercing hole. The holes are connected with a clamping slot, and the tail end of the tie rod unit is provided with a clamping joint and a collision block. The clamping joint passes through the hole and is clamped to the clamping slot. The end of the head end is in conflict with the collision block at the tail end. 5. The high-altitude pruning shears according to claim 1, characterized in that: the connecting rod of the connecting part comprises a plurality of connecting rod units, and a plurality of connecting rod units are detachably connected head to tail, by connecting different numbers of connecting rods Rod unit, and then adjust the length of the connecting rod. 6. The high-altitude pruning shears according to claim 5, characterized in that: the detachable connection structure between the connecting rod units is screw connection, insertion connection or card connection. 7. The high-altitude pruning shears according to claim 1, characterized in that: the fixed blade of the shearing part is also provided with a first clamping part, and the movable blade of the shearing part is provided with a second clamping part. When the fixed blade and the movable blade are shearing, the first clamping part corresponds to the second clamping part and forms a clamping structure. 8. The high-altitude pruning shears according to claim 1, characterized in that: the drive mechanism comprises a drive motor, a screw and a connector, the screw is connected to the drive end of the drive motor, and the connector is screwed to On the screw, the connecting piece is connected to the pull rod, and the driving motor drives the screw to rotate, and then drives the connecting piece and the pull rod to move along the axial direction of the screw to realize the driving of the movable blade of the shearing part. 9. The high-altitude pruning shears according to claim 8, characterized in that: the drive mechanism also includes a control module and a signal input module, the signal input module is a trigger switch arranged on the handle, and the signal input module The output end of the control module is connected to the input end of the control module, and the control output end of the control module is connected to the controlled end of the driving motor to control the driving of the driving motor. 10. The high-altitude pruning shears according to claim 9, characterized in that: the drive mechanism also includes a first Hall sensor and a second Hall sensor, and the first Hall sensor and the second Hall sensor The Hall sensors are arranged at intervals on the handle corresponding to the moving track of the connecting piece, and a magnet is also arranged on the connecting piece, and the movement of the connecting piece makes the first Hall sensor and the second Hall sensor sense the magnet respectively. magnetic, and the output is connected to the control module.