TWM573258U - Speed change switching structure of electric and pneumatic tools - Google Patents

Abstract

The utility model relates to an electric power and pneumatic tool shifting switch structure. The shifting switch structure is provided with a machine head in front of the fuselage of the electric and pneumatic tools, and a control ring and a sliding sleeve are connected in the outer periphery of the machine head. The control ring is coupled with the shifting gear ring of the shifting component disposed in the handpiece, and the movement of the sliding sleeve outside the handpiece can drive the shifting gear ring to generate the same through the control ring. Displacement thereto, and the shifting assembly further includes a first planet carrier mounted in the inner ring portion of the shifting ring and a second planet carrier mounted inside the nose and behind the shifting ring And a fixed toothed ring, and the first planet carrier is powered by a central axis extending from the front end of the nose.

Description

Electric and pneumatic tools variable speed switching structure

This creation is about a "variable switching structure for electric and pneumatic tools", especially a simple and easy switching mechanism for electric and pneumatic tools with variable speed switching.

According to the conventional electric drills and pneumatic drills, there are two main types of design, one is to provide high speed and low torque at start-up, and the other is high torque. However, the rotation speed is low; however, it is difficult to achieve the same electric and pneumatic tools, that is, the two different modes of high speed and high torque, and even if the switching is quite complicated, it is still in the existing implementation operation. At the same time, two different types of electric and pneumatic tools will be prepared. As a result, the cost of use will increase, and it will be troublesome and take up space in carrying or storing.

Therefore, if an electric and pneumatic tool with two different modes of high speed and high torque can be developed, the electric and pneumatic tools are quite simple, quick and convenient in shifting switching, so that the user only needs to prepare one. Electrical and pneumatic tools can cope with the vast majority of work needs, which is the problem that the creator wants to improve.

Therefore, the creator of this creator has the experience of thinking and creation, and has many years of experience. Designed, explored and tested for sample testing, and many revisions and improvements, is the creation of this creation.

The present invention provides a shifting structure for electric and pneumatic tools, wherein the shifting structure is provided with a head in front of the body of the electric and pneumatic tools, and a control ring and a sliding sleeve are sequentially arranged around the outer periphery of the head. Connecting the control ring to the shifting gear ring of the shifting component that is placed in the handpiece, and driving the shifting tooth through the control ring through the operation of the sliding sleeve outside the handpiece The ring generates a displacement in the same direction, and the shifting assembly further includes a first planet carrier mounted in the inner ring portion of the shift gear ring and a first portion mounted inside the handpiece and located behind the shift gear ring a second planet carrier and a fixed toothed ring, and the first planet carrier is powered by a central axis extending from the front end of the nose, wherein the rear end of the nose and the front end are respectively connected to each other a first receiving slot and a second receiving slot, wherein the bottom surface of the first receiving slot is provided with a first engaging portion, and a middle portion of the outer peripheral portion of the head is formed with a reduced diameter portion, and the reduced diameter portion is used for Providing the control ring and the sliding sleeve in a sequence, so as to be after the setting Between the sliding sleeve and the handpiece, the sliding sleeve is continuously pushed forward, and the sliding sleeve can be stopped with the rear end thereof on the edge formed by the reduced diameter portion. An elastic member, and a first card slot and a second card slot are disposed on the edge, and the same outer peripheral height on the reduced diameter portion is provided with the number of the first a slot and a long hole that is inclined toward the edge direction, and the control ring is provided with a number that simultaneously protrudes from the inner ring surface and the outer ring surface of the control ring, and the number is matched with the long hole Pin, the combination pin Extending one end of the inner ring surface of the control ring through the long hole of the machine head and connecting with the shift gear ring, so that the control ring can define a space defined by the joint pin in the long hole The shift gear ring is driven to perform a limited displacement, and the rear end of the sliding sleeve protrudes from a block that normally snaps into the first card slot, and the inner wall is concavely provided from the rear end to the front and the length The hole has a matching number of tolerance passages. When the sliding sleeve is sleeved on the reduced diameter portion, an end of the coupling pin protruding from the outer annular surface of the control ring penetrates into the receiving passage. The sliding sleeve, the control ring and the shifting ring can be connected to each other by the insertion of the combined pin, and the shifting ring is sleeved in the first pocket of the head, and is in a normal state. The second embedding portion on the front end is engaged with the first embedding portion, and the rear end of the shifting gear ring is provided with a third embedding portion, and the first planet carrier is pivotally provided with a plurality of a first planetary gear, the first planet carrier is fitted into an inner ring portion of the shift gear ring, and the central shaft can be extended from the second pocket, and the The planetary gear meshes with the inner ring tooth portion of the shift gear ring, the second planet carrier is pivotally provided with a plurality of second planetary gears, the outer circumference is provided with a fourth snap-in portion, and the front portion is coupled with a first meshing planet. a sun gear between the gears, the fixed tooth ring is fixedly mounted at a notch of the first cavity, and the second pair of the fixed tooth ring and the first planet carrier are sleeved in the first cavity The planet carrier is constrained, and the second planetary gear of the second carrier is also engaged by the inner ring tooth portion by using the inner ring tooth portion of the fixed tooth ring, thereby obtaining an electric power , pneumatic tool shifting switch structure.

This creation provides variable-speed switching structure for electric and pneumatic tools, and its electric and pneumatic tools are also available. There are two modes of high speed, low torque, high torque and low speed. In the mode switching, only a simple push and then a slight rotation is needed, so that the user only needs to prepare one electric and pneumatic tool. It can cope with the needs of most of the work, the cost of use is low, it will be convenient and space-free to carry or store, and the operation is also simpler and faster.

This creative part:

(10)‧‧‧Electrical and pneumatic tools

(11) ‧‧‧ body

(20)‧‧‧ nose

(201) ‧ ‧ first slot

(202)‧‧‧Second capacity

(203)‧‧‧The first embedded card department

(204)‧‧‧Reducing section

(205) ‧‧ ‧

(206)‧‧‧First card slot

(207)‧‧‧Second card slot

(208)‧‧‧ long holes

(21)‧‧‧Flexible parts

(22)‧‧‧Buttons

(30) ‧‧‧Control loop

(31) ‧‧‧Combined pins

(40)‧‧‧Sleeve

(41)‧‧‧Clocks

(42) ‧‧‧容容通道

(43) ‧ ‧ tiers

(50)‧‧‧Transmission components

(51)‧‧‧Variable gear ring

(511)‧‧‧Second embedded card department

(512) ‧‧‧The third embedded card department

(513) ‧ ‧ Circumference

(52)‧‧‧First planet carrier

(521)‧‧‧ central axis

(522)‧‧‧First planetary gear

(53)‧‧‧Second planet carrier

(531)‧‧‧Second planetary gears

(532)‧‧‧The fourth embedded card department

(533)‧‧‧Sun Gear

(54)‧‧‧Fixed ring

The first picture: a perspective view of the electric and pneumatic tools.

The second picture: a three-dimensional combination of the creation.

The third picture: the three-dimensional exploded view of the creation.

The fourth picture: the combination plan of the creation.

The fifth picture: the state diagram of the A-A profile and high speed mode of the fourth picture of this creation.

The sixth picture is the action diagram 1 of the variable speed switching of this creation.

The seventh picture is the action diagram 2 of the variable speed switching of this creation.

The eighth picture: the action diagram of the shifting switch of this creation.

The ninth picture: the state diagram of the high torque mode of the creation.

Figure 10: Section B-B of the ninth figure of this creation.

Figure 11 is a perspective exploded view of another preferred embodiment of the present invention.

Twelfth Figure: A sectional view of a combination of another preferred embodiment of the present invention.

In order to enable your review board to make more progress on the purpose, characteristics and efficacy of this creation. For a one-step understanding and understanding, please refer to the following for a brief description of the following examples. The detailed description is as follows: First, please see the first to fifth figures. This creation provides an electric and pneumatic tool. The shifting switch structure is provided with a head (20) in front of the body (11) of the electric and pneumatic tool (10), and the outer circumference of the head (20) is sequentially provided with a control loop connected thereto. (30) and a sliding sleeve (40), the control ring (30) is coupled with a shifting ring (51) of the shifting assembly (50) placed in the head (20), The movement of the outer portion of the head (20) through the sliding sleeve (40) drives the shifting ring (51) to move in the same direction via the control ring (30), and the shifting assembly (50) further comprises a first planet carrier (52) mounted in the inner ring portion of the shifting ring (51) and a second mounted inside the nose (20) and behind the shifting ring (51) a planet carrier (53) and a fixed toothed ring (54), and the first planet carrier (52) is powered by a central axis (521) extending from the front end of the handpiece (20), wherein The back end of the nose (20) and the front end a first receiving groove (201) and a second receiving groove (202) are provided, and a first inserting portion (203) is disposed on the bottom surface of the first receiving groove (201). A reduced diameter portion (204) is formed in the middle portion of the outer circumference of the head (20), and the reduced diameter portion (204) is used for providing the control ring (30) and the sliding sleeve (40) to be sequentially arranged. After the sleeve is placed between the sliding sleeve (40) and the head (20), the sliding sleeve (40) is continuously pushed and pushed forward to allow the sliding sleeve (40) to be The rear end is supported by an elastic member (21) on the step edge (205) formed by the reduced diameter portion (204), and the first edge (205) is provided with a first one that is appropriately spaced apart a card slot (206) and a second card slot (207), the same outer peripheral height on the reduced diameter portion (204) is provided with a number of penetrations into the first pocket (201) and toward the step edge (205) a long hole (208) that is inclined in the direction, and the control ring (30) is provided with the control ring extending at the same time (30) an inner ring surface and an outer ring surface, and a number of coupling pins (31) matched in number with the long holes (208), the coupling pin (31) extending out of the control ring (30) One end of the torus is connected to the shifting ring (51) through the long hole (208) of the head (20), so that the control ring (30) can be placed at the joint pin (31) The space defined by the long hole (208) drives the shifting gear ring (51) to perform a limited displacement, and the rear end of the sliding sleeve (40) protrudes into a state of the first card slot (206). a block (41), the inner wall is recessed forwardly from the rear end to provide a number of tolerance passages (42) matching the long holes (208), when the sliding sleeve (40) is sleeved When the reducing portion (204) is on, an end of the outer ring surface of the control ring (30) with the coupling pin (31) is inserted into the receiving passage (42) to allow the sliding The sleeve (40), the control ring (30), and the shifting ring (51) can be coupled to each other by the insertion of the coupling pin (31), and the shifting ring (51) is pivoted on the head ( The first receiving groove (201) of 20) is inserted into the first engaging portion (203) by the second engaging portion (511) on the front end in a normal state, and the change A third latching portion (512) is disposed on the rear end of the speed ring (51), and the first planet carrier (52) is pivotally provided with a plurality of first planet gears (522), the first planet carrier (52) Is an inner ring portion of the shifting gear ring (51), allowing the central shaft (521) to protrude from the second receiving groove (202), and the first planetary gear (522) Engaging on the inner ring tooth portion of the shift gear ring (51), the second planet carrier (53) is pivotally provided with a plurality of second planet gears (531), and the outer circumference is provided with a fourth snap-in portion (532). The front side is coupled with a sun gear (533) meshing between the first planetary gears (522), and the fixed tooth ring (54) is fixedly mounted at the notch of the first receiving groove (201), and the fixed tooth is fixed. The ring (54) and the first planet carrier (52) limit the second planet carrier (53) pivoted in the first pocket (201), and utilize the fixed gear ring (54) The ring gear portion is also configured to engage the second planet gear (531) of the second planet carrier (53) with the inner ring tooth portion.

The present invention provides an electric and pneumatic tool shifting structure, wherein the inner wall of the sliding sleeve (40) is provided with a stepped portion (43), and the outer periphery of the head (20) is inherently provided with a buckle (22). When the elastic member (21) is disposed between the sliding sleeve (40) and the head (20), the elastic member (21) is respectively provided by the step portion (43) and the buckle (22). The two ends are abutted, and the elastic member (21) is a compression spring.

The present invention provides an electric and pneumatic tool shifting structure, wherein the first engaging portion (203) and the second engaging portion (511) are provided with a groove and a protrusion.

The present invention provides an electric and pneumatic tool shifting structure, wherein the third engaging portion (512) and the fourth engaging portion (532) are bumps that can be mutually abutted.

The present invention provides an electric and pneumatic tool shifting structure, wherein the outer ring of the shifting ring (51) is provided with a ring groove (513), and the ring groove (513) is used to provide the joint pin (31) after the piercing link.

The present invention provides an electric and pneumatic tool shifting structure, wherein the outer ring of the shifting ring (51) is provided with a ring groove (513), so that the control ring (30) can be omitted from the head (20). The outer circumference is adapted to be nested in the annular groove (513), and when the control ring (30) is coupled to the shifting ring (51) in the first receiving groove (201), The coupling pin (31) on the control ring (30) can pass through the long hole (208), and then penetrates into the receiving passage (42) of the sliding sleeve (40), thereby obtaining In addition to the same shifting effect, the outer circumference of the electric and pneumatic tool shifting structure can be reduced to a smaller size (please also look at the eleventh and twelfth figures).

With the above structure, since it is normally stuck in the first card slot (206) by the block (41), the shift ring (51) can be subjected to the sliding sleeve (40) and the control ring (30). The link remains in front a square position, and is embedded in the first cam portion (203) of the handpiece (20) by the second card insertion portion (511) (please also view it as shown in the fifth figure), so when The electric and pneumatic tool (10) is activated, and when the shifting assembly (50) receives the power generated by the electric and pneumatic tools (10), the shifting ring (51) cannot be used by the first planetary gear. (522) driving the rotation, so that the shifting assembly (50) only connects the first planetary gear (522), the sun gear (533), the second planetary gear (531), and the fixed gear ring (54) at a high rotational speed, The low-torque mode outputs power, which provides a need for use in this mode.

In the process of using high torque and low rotation speed, a forward thrust is applied to the sliding sleeve (40), and the coupling pin (31) is evaded through the receiving passage (42), so that The sliding sleeve (40) can smoothly drive the card block (41) forwardly away from the first card slot (206) (please view it as shown in the sixth figure), and simultaneously compress the elastic member (21) The sliding sleeve (40) is pushed forward and then the receiving pin (31) is caught by the receiving passage (42) to enable the sliding sleeve (40) to pass through the long hole (208). The rotation of the control ring (30) and the shifting gear ring (51) (as shown in the seventh figure at the same time), and the card block (41) into the second card slot (207) (Please also be seen from the eighth figure), at this time, the second snap portion (511) of the shift ring (51) will be disengaged from the first insert of the handpiece (20) a portion (203), and embedding the third card-incorporating portion (512) with the fourth card-incorporating portion (532) of the second planet carrier (53) (please also have the ninth and tenth views) In view of the above, the shifting gear ring (51) can be rotated not only by the first planetary gear (522), but also by the third in the rotation process. The insertion of the portion (512) and the fourth card-incorporating portion (532) regenerates a force to the second planet carrier (53) that has been rotated by the first planetary gear (522) through the sun gear (533). The effect is that the first planetary gear (522), the shifting ring (51), the sun gear (533), the second carrier (53), the second planetary gear (531), and the fixed tooth The connection of the ring (54) will enable the electric and pneumatic tools (10) to be used in a low-speed, high-torque output.

By the structure of the above specific embodiment, the following benefits can be obtained: the electric and pneumatic tools (10) are provided with two modes of high rotation speed, low torque, high torque and low speed, and the shifting of the mode is performed. It is only necessary to simply push forward and then rotate a little, so that the user only needs to prepare one of the electric and pneumatic tools (10) to cope with most of the work, the cost of use is low, and it is carried or stored. It is more convenient and does not take up space, and it is easier and faster to operate.

In summary, this creation has indeed achieved a breakthrough structural design, with improved creative content, while at the same time achieving industrial use and progress, and this creation has not been seen in any publication, but also novel, when In accordance with the provisions of the relevant laws and regulations of the Patent Law, a new type of patent application is filed according to law, and the examination authority of the bureau is required to grant legal patent rights.

Only the above-mentioned ones are only preferred embodiments of the present invention, and the scope of the implementation of the creation cannot be limited by them; that is, the equal changes and modifications made by the applicants in accordance with the scope of the patent application for this creation should still belong to the creation. Within the scope of the patent.

Claims (8)

The utility model relates to an electric and pneumatic tool shifting switch structure. The shifting switch structure is provided with a machine head in front of the fuselage of the electric and pneumatic tools, and the control head is provided with a control ring and a sliding sleeve connected to the control ring. The shifting gear ring of the shifting component placed in the head is connected, and the shifting gear ring can be driven to move in the same direction through the control ring outside the head. And the shifting assembly further includes a first planet carrier mounted in the inner ring portion of the shift ring, a second planet carrier mounted inside the head and located behind the shift ring, and a fixed The tooth ring, and the first planet carrier is powered by a central axis extending from the front end of the nose, wherein: a first cavity is connected to the front end and the front end respectively And a second receiving groove, the bottom surface of the first receiving groove is provided with a first engaging portion, and a middle portion of the outer peripheral portion of the head is formed with a reduced diameter portion, wherein the reduced diameter portion is used for providing the sliding sleeve The sleeve is arranged to be supported between the sliding sleeve and the handpiece after the setting Normally, the sliding sleeve is continuously pushed forward, so that the sliding sleeve can be stopped with an elastic member on the edge formed by the reduced diameter portion with the rear end thereof, and the edge is provided on the edge a first card slot and a second card slot are appropriately spaced apart, and the same outer peripheral height on the reduced diameter portion is provided with a long hole that penetrates into the first cavity and is inclined toward the edge direction The control ring is provided with a number of coupling pins in a quantity matching with the long holes, and the coupling pin passes through the long holes to pass out from the inner side and the outer side of the machine head, so that after being worn out, And The sliding sleeve and the shifting gear ring are connected, so that the control ring can drive the shifting gear ring to perform a limited displacement in the space defined by the long hole; the rear end of the sliding sleeve protrudes a card block that is normally inserted into the first card slot, and the inner wall is recessed forwardly by the rear end to provide a number of tolerance passages that are matched with the long holes, when the sliding sleeve is sleeved in the When the diameter is reduced, the one end of the coupling pin passing through the outer side of the head penetrates into the receiving passage, so that the sliding sleeve, the control ring and the shifting ring can be passed through the coupling pin. Achieving a connection with each other; the shifting gear ring is pivoted to the first pocket of the handpiece, and is inserted into the first embedding portion by a second embedding portion on the front end in a normal state, And a third insertion portion is disposed on the rear end of the shift gear ring, and the first planet carrier is pivotally provided with a plurality of first planetary gears, and the first planet carrier is sleeved into the inner ring portion of the shift gear ring Causing the central shaft to extend from the second pocket and engaging the first planet gear on the inner ring tooth of the shift ring, the second planet The upper arm is provided with a plurality of second planetary gears, the outer circumference is provided with a fourth engaging portion, and the front portion is combined with a sun gear meshed between the first planetary gears, and the fixed toothed ring is obtained at the notch of the first receiving groove The fixing is fixed, and the second planetary carrier pivotally sleeved in the first receiving groove is fixed by the fixed toothed ring and the first planetary carrier, and the setting of the inner ring tooth portion of the fixed toothed ring is further The second planet gear of the second planet carrier can be engaged with the inner ring tooth portion for engagement. The electric power and pneumatic tool shifting structure according to claim 1, wherein the inner wall of the sliding sleeve is provided with a stepped portion, and the outer circumference of the mechanical head is inherently provided with a buckle, when the elastic member is disposed. When the sliding sleeve is in contact with the handpiece, the two ends of the elastic member are respectively supported by the stepped portion and the buckle. The electric or pneumatic tool shifting structure according to claim 1 or claim 2, wherein the elastic member is a compression spring. The electric power and pneumatic tool shifting structure according to claim 1, wherein the first engaging portion and the second engaging portion are configured to cooperate with the groove and the protrusion. The electric power and pneumatic tool shifting structure according to claim 1, wherein the third engaging portion and the fourth engaging portion are bumps that can be mutually abutted. The electric power and pneumatic tool shifting structure according to claim 1, wherein the control ring is sleeved on the reduced diameter portion of the outer circumference of the machine head, so that the control ring can be disposed at the reduced diameter portion and the a sliding sleeve, and the control ring is provided with a number of coupling pins extending from the inner side and the outer side of the head and matched in quantity with the long holes, the coupling pin is from the long hole An end extending from the inner side of the nose is coupled to the shifting ring, so that the control ring can drive the shifting ring to a limited extent in the space defined by the long hole. Displacement. The electric power and pneumatic tool shifting structure according to claim 6, wherein the outer periphery of the shifting ring is provided with a ring groove, and the ring groove is provided with the connecting pin to penetrate and be connected. The electric power and pneumatic tool shifting structure according to claim 1, wherein the outer periphery of the shifting gear ring is provided with a ring groove, so that the control ring can be directly pivoted in the ring groove, when the control After the ring is coupled with the shifting ring in the first pocket, the coupling pin on the control ring can be passed through the long hole, and then the tolerance of the sliding sleeve is inserted into the sleeve. In the channel.