CN115009413A

CN115009413A - Transmission structure

Info

Publication number: CN115009413A
Application number: CN202210799636.1A
Authority: CN
Inventors: 于锋; 薛宇超
Original assignee: Qingdao Magene Intelligence Technology Co Ltd
Current assignee: Qingdao Magene Intelligence Technology Co Ltd
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-09-06
Anticipated expiration: 2042-07-08

Abstract

The invention relates to the technical field of speed change structures of riding equipment, in particular to a speed changer structure which comprises a handle, a brake rod and a speed change control unit, wherein the speed change control unit comprises a shifting sheet and a control circuit board. According to the invention, the plectrum is hinged on the brake lever and is of a cantilever structure, the plectrum is arranged at the tail end of the brake lever, the plectrum is pressed by fingers in the riding process, the plectrum rotates relative to the brake lever, and the rotation of the plectrum drives the pressing component to move downwards to trigger the control circuit board to realize the key function; the pressing component is arranged, so that the height of the key contact can be increased, and the electric signal trigger of the control circuit board can be realized without stirring a large stroke of the shifting piece. The invention has simple structure, can be controlled by one hand without large force during operation, and is more convenient to assemble and use. Through setting up spacing end cover, can carry on spacingly to the round pin axle, supplementary fixed control circuit board simultaneously, it is more convenient to assemble.

Description

Transmission structure

Technical Field

The invention relates to the technical field of speed change structures of riding equipment, in particular to a transmission structure.

Background

The types of existing manual head-changing speed-changing structures in the market are roughly divided into a pull-wire type and an electronic type. The mechanical stay wire type speed change structure is limited by the travel of a stay wire, the speed change shifting piece can realize speed change only by pressing a longer travel, the operation hand feeling is poor, and the mechanical stay wire type speed change structure needs to be matched with the stay wire for use, so that the structure is complex and inconvenient to use. The electronic speed change structure is in a trigger button form, is not limited by stroke, and has better pressing hand feeling than mechanical speed change; for example, chinese patent CN1807180B discloses an electrical control device for a bicycle transmission, which uses a structure similar to a pendulum to control a shift button, and when the structure shifts a cantilever to control, the stroke is too long, and a rider can extend fingers with force during operation, and can loose attention and cause danger during high-speed riding; meanwhile, the control key is arranged in the handle through the structure, the structure is complex, and the electronic key is not easy to debug and maintain. In view of the above problems, further improvements are needed in the prior art.

Disclosure of Invention

The present invention aims to provide a transmission structure to solve the above-mentioned problems of the prior art.

In order to solve the technical problems, the technical scheme provided by the invention is as follows: the utility model provides a derailleur structure, including being used for installing handle and the brake lever on the automobile body, the brake lever rotates to be connected on the handle, its characterized in that still includes variable speed control unit, variable speed control unit includes plectrum and control circuit board, the plectrum sets up on the lateral wall of brake lever and articulates through the round pin axle, control circuit board is fixed to be set up on the inside wall of brake lever, the plectrum triggers control circuit board signal of telecommunication through pressing the subassembly and transmits.

On the basis of the technical scheme, an included angle between the axis of the pin shaft and the plane where the side wall of the brake lever is located is set to be 0-30 degrees.

On the basis of the technical scheme, the axis of the pin shaft does not intersect with the plane where the side wall of the brake lever is located.

On the basis of the technical scheme, the shifting piece comprises a shifting piece cantilever, a hinged part and a pressing part, the hinged part and the pressing part are fixedly arranged on one side, close to the brake lever, of the shifting piece cantilever, a first through hole for a pin shaft to penetrate through is formed in the hinged part, and the pressing part is abutted to the pressing component.

On the basis of the technical scheme, the pressing assembly comprises a key column and a reset component, the key column is driven by the shifting piece to move, the control circuit board is provided with a key elastic sheet, the bottom end of the key column is abutted against the key elastic sheet to trigger the control circuit board to transmit electric signals, and the reset component is sleeved on the key column and the top end of the reset component is abutted against the shifting piece.

On the basis of the technical scheme, the reset component is set to be a soft rubber cushion or a spring.

On the basis of the technical scheme, the brake lever further comprises a limiting end cover, wherein the limiting end cover is arranged above the control circuit board and is fixedly connected with the inner side wall of the brake lever.

On the basis of the technical scheme, a first groove is formed in the inner side wall of the brake lever, a second groove is formed in the limiting end cover, and the second groove and the first groove are correspondingly arranged and buckled to form an accommodating space for accommodating the pin shaft.

On the basis of the technical scheme, the limiting end cover is provided with a limiting groove, the inner side wall of the hinged part is provided with a limiting block, and the limiting block is abutted against the limiting groove to limit the rotation of the plectrum.

On the basis of the technical scheme, one end of the soft rubber pad is fixedly arranged at the bottom end of the limiting end cover, and the other end of the soft rubber pad penetrates through a second through hole formed in the limiting end cover and is abutted to the shifting piece.

The technical scheme provided by the invention has the beneficial effects that:

1. according to the invention, the plectrum is hinged on the brake lever and is of a cantilever structure, the plectrum is arranged at the tail end of the brake lever, the plectrum is pressed by fingers in the riding process, the plectrum rotates relative to the brake lever, and the rotation of the plectrum drives the pressing component to move downwards to trigger the control circuit board to realize the key function; the pressing component is arranged, so that the height of the key contact can be increased, and the electric signal trigger of the control circuit board can be realized without stirring a large stroke of the shifting piece. The brake lever has a simple structure, can be controlled by a single hand during operation without large force, and is more convenient to assemble and maintain as the shifting piece and the control device are arranged at the tail end of the brake lever.

2. Through setting up spacing end cover, can carry on spacingly to the round pin axle, supplementary fixed control circuit board simultaneously, it is more convenient to assemble.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of another embodiment of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic structural view of the paddle of the present invention;

FIG. 5 is a schematic view of the brake lever of the present invention;

FIG. 6 is a schematic structural view of a retention end cap according to the present invention;

FIG. 7 is a schematic structural view of the pick, the limiting end cap and the pressing assembly of the present invention;

Detailed Description

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "left", "right", "front", "back", "top", "bottom", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example one

As shown in fig. 1 to 7, a transmission structure comprises a handle 10 and a brake lever 3, the handle 10 and the brake lever 3 are arranged on a vehicle body, the brake lever 3 is rotatably connected to the handle 10, the transmission structure further comprises a speed change control unit, the speed change control unit comprises a shifting piece 1 and a control circuit board 2, the shifting piece 1 is arranged on the side wall of the brake lever 3 and is hinged to the side wall of the brake lever through a pin 5, the control circuit board 2 is fixedly arranged on the inner side wall of the brake lever 3, and the shifting piece 1 triggers the control circuit board 2 to transmit electric signals through a pressing component 4.

According to the invention, the plectrum 1 is hinged on the brake rod 3 and is of a cantilever structure, the position of the plectrum 1 is arranged at the tail end of the brake rod 3, the plectrum 1 is poked by fingers in the riding process, the plectrum 1 rotates relative to the brake rod 3, and the rotation of the plectrum 1 drives the pressing component 4 to move downwards to trigger the control circuit board 2 to realize the key function; through setting up pressing component 4, can promote the height of button contact, need not stir the great stroke with plectrum 1 and can realize that control circuit board 2's signal of telecommunication triggers. The invention has simple structure, can be controlled by one hand without large force during operation, and is more convenient to assemble and use.

On the basis of the technical scheme, an included angle between the axis A of the pin shaft 5 and the plane P where the side wall of the brake lever 3 is located is set to be 0-30 degrees. On the basis of the technical scheme, the axis A of the pin shaft 5 does not intersect with the plane P where the side wall of the brake lever 3 is located.

More preferably, the axis a of the pin 5 is parallel to the plane of the side wall of the brake lever 3, i.e. the included angle is set to 0 °, as shown in fig. 2, the plectrum 1 rotates with the plane of the side wall of the brake lever 3 as the axis; namely, the hinge joint between the shifting piece 1 and the brake lever 3 is similar to a hinge joint; specifically, the plectrum 1 can turn a certain angle around the brake lever 3 when being pulled, the rotation direction of the plectrum is indicated as an arrow in fig. 1, the stroke is small, the plectrum can be operated by using a small force with one hand, and the use is more convenient; more preferably, an included angle is formed between the stress direction of the pin shaft 5 and the motion plane of the brake handle 3, and the included angle is an acute angle.

On the basis of the above technical solution, as shown in fig. 4, the blade 1 includes a blade suspension arm 11, a hinge portion 12 and a pressing portion 13, the hinge portion 12 and the pressing portion 13 are fixedly disposed on one side of the blade suspension arm 11 close to the brake lever 3, the hinge portion 12 is provided with a first through hole 14 for the pin 5 to pass through, and the pressing portion 13 abuts against the pressing component 4.

On the basis of the above technical solution, as shown in fig. 3 and 7, the pressing assembly 4 includes a key post 41 and a reset component 42, the key post 41 is driven by the shifting piece 1 to move, the control circuit board 2 is provided with a key elastic sheet 21, the bottom end of the key post 41 is abutted to the key elastic sheet 21 to trigger the control circuit board 2 to transmit an electric signal, and the reset component 42 is sleeved on the key post 41 and the top end thereof is abutted to the shifting piece 1. Preferably, the return member 42 is provided as a soft rubber pad or spring. The restoring means in this application takes the form of a soft rubber pad, as shown in the accompanying drawings.

Through setting up the key post 41, raise the position of button contact, need not press the plectrum 1 great stroke and can realize the button and trigger, facilitate the use. In the embodiment, the soft rubber pad is sleeved on the outer side of the key column 41, so that the key feedback is provided, and the experience feeling is good; and simultaneously provides restoring force to realize the return of the shifting sheet 1.

Specifically, the plectrum 1 articulates on brake lever 3 and is the cantilever structure setting, control circuit board 2 sets up to the PCBA circuit board, be provided with the snap dome on the PCBA circuit board and press the button shell fragment 21 promptly, realize triggering with the key post 41 butt in the pressing component 4. When the hand-operated electric wrench is used, the plectrum 1 rotates around the pin shaft 5 when the plectrum 1 is pushed inwards by hands, namely force is applied to the plectrum 1; the bottom end of the shifting piece 1, namely the bottom end of the pressing part 13, is in interference fit with the top end of the soft rubber pad, and the initial position of the shifting piece 1 is supported through extrusion of the soft rubber pad; the key column 41 is sleeved in the soft rubber pad, the key surface is lifted by utilizing the key column 41 due to the lower height of the combined key, the bottom end surface of the key column 41 is abutted against a snap dome on the control circuit board 2, namely the key elastic sheet 21, namely the key function is triggered sequentially through the shifting sheet 1, the soft rubber pad, the key column 41 and the key elastic sheet 21; the trigger control circuit board 2 transmits the electric signal to the main control board, so that the speed change function is realized. In addition, the unidirectional speed change function can be arranged on the handle at one side, such as the left handle is used for controlling the speed increase, the right handle is used for controlling the speed decrease, and the speed change function is distributed on two hands; or a bidirectional speed change function is arranged on the handle at one side, the speed increasing and the speed reducing are integrated on one handle, and the number of the key columns and the number of the key elastic sheets on the circuit board are increased by one, so that the key columns and the key elastic sheets can be respectively triggered and can be changed according to actual conditions.

Example two

On the basis of the technical scheme, the brake device further comprises a limiting end cover 6, wherein the limiting end cover 6 is arranged above the control circuit board 2 and is fixedly connected with the inner side wall of the brake rod 3; as shown in fig. 6.

Specifically, spacing end cover 6 is fixed with brake lever 3 through screw 7, and spacing end cover 6's effect is spacing hinge member promptly round pin axle 5, can fix a position and fix control circuit board 2 simultaneously.

On the basis of the above technical scheme, as shown in fig. 5 and 6, the inner side wall of the brake lever 3 is provided with a first groove 31, the limiting end cover 6 is provided with a second groove 61, and the second groove 61 and the first groove 31 are correspondingly arranged and buckled to form an accommodating space for accommodating the pin shaft 5. More preferably, the first grooves 31 are symmetrically arranged on both sides of the hinge portion 12; the number of the pin shafts 5 is two, the number of the hinge parts 12 is two, the rotation of the plectrum 1 is more stable, and the service life is prolonged.

On the basis of the technical scheme, the limiting end cover 6 is provided with a limiting groove 62, the inner side wall of the hinge portion 12 is provided with a limiting block 15, and the rotation limiting of the shifting piece 1 is realized when the limiting block 15 is abutted against the limiting groove 62. The auxiliary limiting of the rotation of the shifting piece 1 can be realized through the matching between the limiting groove 62 and the limiting block 15; meanwhile, the shifting piece 1 is convenient to return by matching with a soft rubber cushion.

On the basis of the technical scheme, one end of the soft rubber pad is fixedly arranged at the bottom end of the limiting end cover 6, and the other end of the soft rubber pad penetrates through a second through hole 63 formed in the limiting end cover 6 and is abutted to the shifting piece 1.

It can be understood that offer the second through-hole 63 that is used for the holding to press down subassembly 4 on the spacing end cover 6, conveniently press down subassembly 4 top and plectrum 1 bottom butt, drive when plectrum 1 rotates and press down subassembly 4 and reciprocate for spacing end cover 6, key post 41 and the last button shell fragment 21 butt of control circuit board 2 realize signal transmission. The soft rubber pad is sleeved on the outer side of the key post 41, so that the pressing hand feeling can be improved when the keyboard is used; more preferably, the top end of the soft rubber pad is abutted to the bottom end of the pressing part 13 and has a part of interference fit position, and the shifting piece 1 is restored to the initial position through the elasticity of the soft rubber pad and the extrusion with the shifting piece 1 after the pressing is completed.

During assembly, the two pin shafts 5 are pre-arranged in the first through holes 14 of the hinge parts 12 in a penetrating manner, two ends of each pin shaft 5 extend out of the outer sides of the first through holes 14, the brake lever 3 is provided with first grooves 31, and two ends of each pin shaft 5 are correspondingly arranged in the first grooves 31 which are symmetrically arranged; then with the second recess 61 lock that sets up on the spacing end cover 6 on first recess 31 to set up spacing end cover 6 fixedly on brake lever 3, the axis activity is restricted through spacing end cover 6 and brake lever 3's cooperation structure at 5 both ends of round pin axle, the assembly is simple and convenient.

Having shown and described the basic principles and essential features of the invention, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the same is thus to be considered as illustrative and not restrictive in character, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a derailleur structure, is including being used for installing handle (10) and brake lever (3) on the automobile body, brake lever (3) are rotated and are connected on handle (10), its characterized in that still includes the variable speed control unit, the variable speed control unit includes plectrum (1) and control circuit board (2), plectrum (1) sets up on the lateral wall of brake lever (3) and articulates through round pin axle (5), control circuit board (2) are fixed to be set up on the inside wall of brake lever (3), plectrum (1) triggers control circuit board (2) signal of telecommunication through pressing subassembly (4).

2. A transmission construction according to claim 1, characterised in that the angle between the axis (a) of the pin (5) and the plane (P) in which the side walls of the brake lever (3) lie is set between 0 ° and 30 °.

3. A transmission arrangement as claimed in claim 2, characterised in that the axis (a) of said pin (5) does not intersect the plane (P) of the side wall of the brake lever (3).

4. A transmission arrangement according to claim 1, wherein the paddle (1) comprises a paddle cantilever (11), a hinge portion (12) and a pressing portion (13), the hinge portion (12) and the pressing portion (13) are fixedly arranged on one side of the paddle cantilever (11) close to the brake lever (3), the hinge portion (12) is provided with a first through hole (14) for the pin shaft (5) to pass through, and the pressing portion (13) abuts against the pressing member (4).

5. The transmission structure according to claim 1, wherein the pressing assembly (4) comprises a key post (41) and a reset component (42), the key post (41) is driven by the shifting piece (1) to move, a key elastic sheet (21) is arranged on the control circuit board (2), the bottom end of the key post (41) is abutted to the key elastic sheet (21) to trigger the control circuit board (2) to transmit an electric signal, and the reset component (42) is sleeved on the key post (41) and the top end of the reset component is abutted to the shifting piece (1).

6. A variator structure as claimed in claim 5, characterized in that the return member (42) is provided as a soft rubber pad or spring.

7. A transmission arrangement as claimed in claim 6, further comprising a limit end cap (6), wherein the limit end cap (6) is arranged above the control circuit board (2) and is fixedly connected with the inner side wall of the brake lever (3).

8. A transmission structure as claimed in claim 7, characterized in that the brake lever (3) is provided with a first groove (31) on its inner side wall, the limit end cap (6) is provided with a second groove (61), and the second groove (61) is arranged corresponding to the first groove (31) and is fastened to form a receiving space for receiving the pin (5).

9. The transmission structure according to claim 7, wherein the limit end cover (6) is provided with a limit groove (62), the inner side wall of the hinge portion (12) is provided with a limit block (15), and the limit block (15) is abutted against the limit groove (62) to limit the rotation of the plectrum (1).

10. The transmission structure according to claim 7, wherein one end of the soft rubber pad is fixedly arranged at the bottom end of the limit end cover (6), and the other end of the soft rubber pad penetrates through a second through hole (63) formed in the limit end cover (6) and is abutted against the shifting piece (1).