CN221188928U - Brake buffer and brake assembly - Google Patents

Abstract

The utility model provides a brake buffer and a brake assembly. The buffer body is provided with a containing cavity, a first brake wire hole is formed at one end of the buffer body, a guide hole is formed at the other end of the buffer body, and the first brake wire hole and the guide hole are respectively communicated with the containing cavity; one end of the pressing column is in sliding fit with the inner wall of the accommodating cavity, the other end of the pressing column penetrates through the guide hole, and a through second wire braking hole is formed in the pressing column along the axial direction of the first wire braking hole; the buffer element is arranged in the accommodating cavity, two ends of the buffer element are respectively abutted against the inner wall of the accommodating cavity and the pressing column, and the buffer element is configured with a pretightening force for enabling the other end of the pressing column to extend out of the guide hole. When the bicycle is used, the brake buffer can release the wheels from the locking state, plays a role in preventing the wheels from locking, avoids accidents such as sideslip, tail flick and the like caused by sudden braking, and ensures safer riding.

Description

Brake buffer and brake assembly

Technical Field

The utility model belongs to the technical field of bicycle braking, and particularly relates to a brake buffer and a brake assembly.

Background

The bicycle or electric bicycle (hereinafter collectively referred to as bicycle) includes a front wheel controlled by a handle bar, capable of changing a forward direction, and a rear wheel connected with a chain or a motor for driving the vehicle forward. Thus, functionally, the rear wheels are "drive wheels" and the front wheels are "guide wheels". Considering riding safety, the front wheel and the rear wheel of the bicycle are provided with brake assemblies, and when the bicycle needs to be decelerated during riding, the wheels can be braked through the brake assemblies.

In the normal riding process, when the speed is reduced or braked, the brake of a rider is gentle, and the braking distance is longer. When an emergency situation occurs in the riding process (such as a pedestrian suddenly appears in front), and when emergency braking is needed, it is not practical to require a rider to perform braking in a spot braking mode in a cool and quiet mode, and the rider is likely to suddenly exert force to tightly pinch a brake handle to perform emergency braking. The risk of wheel locking exists during emergency braking, and the accident that sideslips easily takes place after the wheel locking, even if the bicycle is braked in time like this, also can lead to the injury of riding person, not enough safety.

Disclosure of utility model

The utility model provides a brake buffer and a brake assembly, and aims to solve the problem that in the prior art, wheels are easy to lock during sudden braking of a bicycle.

In order to achieve the above purpose, the utility model adopts the following technical scheme: in a first aspect, the present utility model provides a brake buffer comprising:

The buffer body is provided with a containing cavity, a first brake wire hole is formed at one end of the buffer body, a guide hole is formed at the other end of the buffer body, and the first brake wire hole and the guide hole are respectively communicated with the containing cavity;

One end of the pressing column is in sliding fit with the inner wall of the accommodating cavity, the other end of the pressing column penetrates through the guide hole, and a through second wire braking hole is formed in the pressing column along the axial direction of the first wire braking hole; and

The buffer element is arranged in the accommodating cavity, two ends of the buffer element are respectively abutted to the inner wall of the accommodating cavity and the compression column, and the buffer element is configured with a pretightening force which enables the other end of the compression column to extend out of the guide hole.

In one possible implementation, the buffer body includes:

The first buffer body is provided with an accommodating hole at one end and a guide hole at the other end, the guide hole is communicated with the accommodating hole, and the compression column and the buffer element are respectively accommodated in the accommodating hole; and

The second buffer body is connected to the opening of the accommodating hole and forms the first brake wire hole, the second buffer body and the first buffer body enclose together to form the accommodating cavity, and one end of the buffer element, which is far away from the pressure column, is abutted to the second buffer body.

In one possible implementation manner, an internal thread is formed at the opening of the accommodating hole, and the second buffer body is in threaded fit with the inner wall of the accommodating hole.

In one possible implementation manner, a mounting stud is formed at one end of the second buffer body, which is away from the first buffer body, and the first brake wire hole penetrates through the mounting stud.

In one possible implementation, the bumper body further includes a mounting nut that mates with the mounting stud.

In one possible implementation, the outer circumferences of the first buffer body and the second buffer body are each formed with an outer hexagon.

In one possible implementation manner, a first limiting portion is formed on the periphery of the pressing column, one end of the buffer element is abutted to the first limiting portion, and the brake buffer further comprises a buffer pad, wherein the buffer pad is arranged in the accommodating cavity and located between the pressing column and the guide hole.

In one possible implementation manner, a second limiting portion is formed at an end of the buffer body along a circumferential direction of the guide hole.

Compared with the prior art, the brake buffer provided by the utility model has the beneficial effects that:

The utility model provides a brake buffer which is arranged on a brake assembly of a bicycle or an electric bicycle, when the brake buffer is arranged, one end of a brake wire of a brake unit passes through a first brake wire hole and a second brake wire hole and then is connected with a rocker arm, one end of a wire tube is abutted to one end of a pressing column extending out of a guide hole, and the other end of the brake wire is connected with a brake handle. When the vehicle is in a normal state and slowly braked, the brake handle is slowly pinched to pull the brake cable, the brake cable pulls the rocker arm, the rocker arm rotates for a certain angle, the brake pad is driven to gradually move towards the brake disc, the wheels are braked by means of friction force of the brake pad and the brake disc, and the brake cable has small pulling force when the vehicle is slowly braked, so that the brake buffer does not work. When the brake is not needed, the brake handle is loosened, so that the brake cable is reset under the action of the spring, and the brake pad is driven to be far away from the brake disc. When the emergency braking is carried out, a rider can unconsciously and forcefully pinch the brake handle under the emergency condition, and the pulling force of the brake cable is larger at the moment, so that the wheels can be locked rapidly due to the friction force between the brake pad and the brake disc. Because the pulling force of the brake cable is larger when the wheel is locked, the spool overcomes the pretightening force of the buffer element, and the compression column is pushed to move towards the inside of the buffer body, so that the buffer element is further compressed. At this time, the spool can move along with the compression column, so that the rocker arm connected with the brake cable can swing in a small amplitude in the direction of releasing the brake, the wheel is released from a locking state, accidents such as sideslip, tail flick and the like caused by sudden braking are avoided, and riding is safer.

From the aspect of riding safety, the brake buffer provided by the utility model can release the bicycle from the locked state of the wheels under the condition of emergency braking, so that the riding safety is improved. From the aspect of manufacturing difficulty, the brake buffer provided by the utility model mainly comprises a buffer body, a pressing column and a buffer element, and is simple in structure and convenient to manufacture. From the aspect of the convenience of product application, the brake buffer provided by the utility model can be directly matched with the existing brake body and the existing brake unit when in use, can be applied without refitting the existing brake unit, can be suitable for products such as bicycles, electric bicycles and the like, and has the advantages of wide application range and convenience in installation.

In a second aspect, the present utility model provides a brake assembly comprising:

the brake comprises a brake body, a brake control device and a brake control device, wherein the brake body is provided with a rocker arm;

the brake buffer according to any one of the above embodiments, wherein the buffer body is provided on the brake body; and

The brake cable unit comprises a brake cable and a spool, wherein one end of the brake cable is arranged in the first brake cable hole and the second brake cable hole in a penetrating mode and is connected with the rocker arm, the spool is sleeved on the outer wall of the brake cable, and one end of the spool is abutted to one end of the compression column, which extends out of the guide hole.

In one possible implementation, the brake body has a fixing plate, the fixing plate is provided with a mounting hole, and the buffer body is arranged in the mounting hole.

The brake assembly provided by the utility model adopts the brake buffer in any implementation manner, has the same technical effects as the brake assembly, and is not repeated here.

Drawings

FIG. 1 is an exploded view of a brake buffer according to one embodiment of the present utility model;

FIG. 2 is an internal cross-sectional view of a brake buffer provided in one embodiment of the present utility model;

FIG. 3 is a first internal cross-sectional view of a brake pad engaged with a brake cable unit according to one embodiment of the present utility model;

FIG. 4 is a second internal cross-sectional view of a brake pad engaged with a brake cable unit according to one embodiment of the present utility model;

FIG. 5 is a schematic illustration of a brake assembly according to one embodiment of the present utility model;

FIG. 6 is an exploded view of a brake buffer according to another embodiment of the present utility model;

FIG. 7 is an internal cross-sectional view of a brake buffer provided in accordance with another embodiment of the present utility model;

FIG. 8 is a schematic diagram of a brake assembly according to another embodiment of the present utility model.

Reference numerals illustrate:

1. A brake buffer; 10. a buffer body; 11. a first buffer body; 111. a receiving hole; 112. a guide hole; 113. an outer hexagon; 114. a second limit part; 12. a second buffer body; 121. a first brake wire hole; 122. installing a stud; 13. installing a nut; 20. pressing a column; 21. a first limit part; 22. a second brake wire hole; 30. a buffer element; 40. a cushion pad; 2. a brake assembly; 50. a brake body; 51. a rocker arm; 52. a fixing plate; 60. a wire brake unit; 61. a brake cable; 62. and a line pipe.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "fixed," "secured" to another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to," "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on," "disposed on" another element, it can be directly on the other element or intervening elements may also be present. "plurality" refers to two and more numbers. "at least one" refers to one and more quantities. "number" refers to one or more numbers.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

Referring to fig. 1 to 8, a brake buffer 1 and a brake assembly 2 according to an embodiment of the utility model are described below.

Referring to fig. 1 to 4, and fig. 6 and 7, in a first aspect, an embodiment of the present utility model provides a brake buffer 1, including a buffer body 10, a pressure post 20, and a buffer element 30. The buffer body 10 has a receiving cavity, one end of the buffer body 10 is formed with a first brake wire hole 121, the other end is formed with a guide hole 112, and the first brake wire hole 121 and the guide hole 112 are respectively communicated with the receiving cavity; one end of the pressing column 20 is in sliding fit with the inner wall of the accommodating cavity, the other end of the pressing column is penetrated through the guide hole 112, and a second through brake wire hole 22 is formed in the pressing column 20 along the axial direction of the first brake wire hole 121; the buffer element 30 is disposed in the accommodating chamber, both ends of the buffer element 30 are respectively abutted against the inner wall of the accommodating chamber and the pressing post 20, and the buffer element 30 is configured with a pre-tightening force that causes the other end of the pressing post 20 to extend out of the guide hole 112.

Compared with the prior art, the brake buffer 1 provided by the embodiment of the utility model has the beneficial effects that:

The brake buffer 1 provided by the embodiment of the utility model is arranged on a brake assembly 2 of a bicycle or an electric bicycle, when in installation, one end of a brake wire 61 of a brake unit passes through a first brake wire hole 121 and a second brake wire hole 22 and then is connected with a rocker arm 51, one end of a wire tube 62 is abutted against one end of a pressing column 20 extending out of a guide hole 112, and the other end of the brake wire 61 is connected with a brake handle. During normal slow braking, the brake handle is slowly pinched to pull the brake cable 61, the brake cable 61 pulls the rocker arm 51, the rocker arm 51 rotates by a certain angle to drive the brake pad to gradually move towards the brake disc, the wheels are braked by means of friction force of the brake pad and the brake disc, and the brake buffer 1 does not work when the brake cable 61 is slowly braked. When the brake is not needed, the brake handle is released, so that the brake cable 61 is reset under the action of the spring, and the brake pad is driven to be far away from the brake disc. When the sudden braking is performed, the rider can unconsciously and forcefully pinch the brake handle in an emergency, and the pulling force of the brake cable 61 is large, so that the friction between the brake pad and the brake disc can cause the wheels to be locked rapidly. Because the pulling force of the brake cable 61 is larger when the wheel is locked, the spool 62 overcomes the pretightening force of the buffer element 30, and pushes the compression column 20 to move towards the inside of the buffer body 10, so that the buffer element 30 is further compressed. At this time, the spool 62 moves along with the pressure post 20, so that the rocker arm 51 connected with the brake cable 61 swings slightly in the brake releasing direction, so that the wheels are unlocked, and accidents such as sideslip and tail flick caused by sudden braking are avoided, and riding is safer.

From the aspect of riding safety, the brake buffer 1 provided by the embodiment of the utility model can release the bicycle wheel from the locked state under the condition of emergency braking, so that the riding safety is improved. From the aspect of manufacturing difficulty, the brake buffer 1 provided by the embodiment of the utility model mainly comprises a buffer body 10, a pressing column 20 and a buffer element 30, and has a simple structure and is convenient to manufacture. From the aspect of convenience of product application, the brake buffer 1 provided by the embodiment of the utility model can be directly matched with the existing brake body 50 and the existing brake unit when in use, can be applied without refitting the existing brake unit, can be suitable for products such as bicycles, electric bicycles and the like, and has wide application range and convenient installation.

In the embodiment of the present utility model, an accommodating cavity is formed in the buffer body 10 and is used for accommodating the buffer element 30, the pressing column 20, etc., two ends of the buffer body 10 are respectively provided with a guide hole 112 and a first brake wire hole 121 which are axially penetrated, and the guide hole 112 is used for extending one end of the pressing column 20 so that the pressing column 20 is abutted to one end of the wire tube 62. The assembly relationship of the damper body 10, the press stud 20, and the damper element 30 is shown in fig. 2. When the brake is not applied or the brake is slowly applied, the force applied to the pressure post 20 by the spool 62 is insufficient to enable the spool 62 to push the pressure post 20 against the pre-tightening force of the cushioning element 30, and the relative positional relationship of the damper body 10, the pressure post 20, the cushioning element 30, the brake cable 61 and the spool 62 is as shown in fig. 3. In the case of the sudden braking, the force of the spool 62 acting on the strut 20 can push the strut 20 to move against the pre-tightening force of the damper element 30, and the relative positional relationship among the damper body 10, the strut 20, the damper element 30, the brake cable 61 and the spool 62 is shown in fig. 4.

The buffer body 10 can be made of metal, plastic or other materials, has enough structural strength, and can meet the use requirement. The outer shape of the damper body 10 may be cylindrical, prismatic (rectangular parallelepiped) or other, and the sectional shapes of the first brake wire hole 121 guide hole 112 and the receiving chamber may be circular square, hexagonal, etc. Since the compression column 20 and the buffer member 30 need to be installed into the receiving chamber, the buffer body 10 should have an opening allowing the compression column 20 and the buffer member 30 to be placed therein, and the opening may be closed when the compression column 20 and the buffer member 30 are placed therein. The damper body 10 may be considered to be an assembly of two or more parts, such as the damper body 10 including a main body for forming the receiving cavity and a closure for closing the opening after the compression column 20 and the damper member 30 are placed. The blocking piece and the main body can be connected in a hinged mode, a plug-in mode, a screw connection mode, an adhesive mode and the like.

The pressing column 20 is disposed on the buffer body 10, the pressing column 20 can move along the axial direction of the accommodating cavity (i.e., the axial direction of the first brake wire hole 121), the pressing column 20 is disposed at one end of the accommodating cavity and abuts against the buffer element 30, and the other end extends out of the buffer body 10 through the guide hole 112 and abuts against the wire tube 62. The press stud 20 may be made of metal or other materials, and its cross-sectional shape may be circular, square, etc.

The buffer element 30 is arranged in the receiving chamber, the buffer element 30 being an elastic element capable of generating a pretension. It may be a single part such as a spring, a rubber block, or a combination of spring steel and a rubber block. The buffer element 30 is arranged in the accommodating cavity and provided with a through hole for the brake cable 61 to pass through, one or more buffer elements 30 can be arranged according to the requirement, the pre-tightening force of the buffer element 30 can be adjusted by changing the model specification of the buffer element 30, and the buffer element is adjusted according to the actual situation during installation so as to achieve the expected effect.

Referring to fig. 1 and 2, in some possible embodiments, the damper body 10 includes a first damper body 11 and a second damper body 12. One end of the first buffer body 11 is formed with a receiving hole 111, the other end is formed with a guide hole 112, the guide hole 112 is communicated with the receiving hole 111, and the pressing column 20 and the buffer element 30 are respectively received in the receiving hole 111; the second buffer body 12 is connected to the opening of the accommodating hole 111, and forms a first wire braking hole 121, the second buffer body 12 and the first buffer body 11 enclose together to form an accommodating cavity, and one end of the buffer element 30 away from the pressing column 20 is abutted against the second buffer body 12.

In this embodiment, the buffer body 10 is formed by combining the first buffer body 11 and the second buffer body 12, before assembling, the first buffer body 11 and the second buffer body 12 are separated, when assembling, the pressing column 20 and the buffer element 30 are placed into the accommodating hole 111, then the second buffer body 12 is buckled, so that one end of the buffer element 30 away from the pressing column 20 is abutted against the second buffer body 12, and then the first buffer body 11 and the second buffer body 12 are combined into a whole through manners of buckling, binding, gluing, screw connection, magnetic attraction connection and the like.

Referring to fig. 1 and 2, in some possible embodiments, an internal thread is formed at the opening of the receiving hole 111, and the second buffer body 12 is in threaded engagement with the inner wall of the receiving hole 111. In this embodiment, the first buffer body 11 is formed with a threaded hole (for example, the specification is M9), the end portion of the second buffer body 12 is formed with an external thread (for example, the specification is M9), and the first buffer body 11 and the second buffer body 12 are connected by threads, so that on one hand, the structure is simple, and the manufacturing and the assembly are convenient. On the other hand, the second buffer body 12 can be screwed to adjust the pretightening force of the buffer element 30 during installation, so that two purposes are achieved.

Referring to fig. 1 and 2, in some possible embodiments, a mounting stud 122 is formed at an end of the second buffer body 12 facing away from the first buffer body 11, and a first brake wire hole 121 penetrates the mounting stud 122. As shown in fig. 5, in this embodiment, a mounting stud 122 (e.g. M6) is formed at one end of the second buffer body 12, and the mounting stud 122 is used to cooperate with a mounting hole on the fixing plate 52, where the mounting hole is an adaptive threaded hole (e.g. M6), so as to fix the buffer body 10 on the fixing plate 52 conveniently.

Referring to fig. 6 and 7, in some possible embodiments, the damper body 10 further includes a mounting nut 13 that cooperates with the mounting stud 122, and the mounting stud 122 and the mounting nut 13 are used to clamp the fixing plate 52 therebetween, so as to adapt to a mounting scenario in which the mounting hole on the fixing plate 52 is a light hole.

Referring to fig. 1, 2 and 6, in some possible embodiments, the outer peripheries of the first buffer body 11 and the second buffer body 12 are formed with an outer hexagon 113, so that the first buffer body 11 and the second buffer body 12 can be screwed by a wrench during assembly and adjustment.

Referring to fig. 2 and 3, in some possible embodiments, the outer periphery of the pressure post 20 is formed with a first limiting portion 21, one end of the buffer element 30 abuts against the first limiting portion 21, the brake buffer 1 further includes a buffer pad 40, and the buffer pad 40 is disposed in the accommodating cavity and located between the pressure post 20 and the guiding hole 112.

In this embodiment, an annular first limiting portion 21 is formed on the outer periphery of the pressing post 20, one end of the first limiting portion 21 is used for abutting against the cushion pad 40, and the other end is used for abutting against the cushion element 30. The cushion pad 40 is made of rubber, felt, fabric fiber and other materials with buffering and energy absorbing functions, and has a through hole coaxially penetrating the guide hole 112 for the brake cable 61 to pass through. The purpose of the cushion pad 40 is to prevent the impact with the bumper body 10 from generating loud sound when the compression column 20 is reset, thereby affecting the user experience.

Referring to fig. 1 and 2, in some possible embodiments, the end of the buffer body 10 is formed with a second limiting portion 114 along the circumference of the guiding hole 112, and the second limiting portion 114 encloses a limiting groove, as shown in fig. 3 and 4, for accommodating the end of the conduit 62.

Referring to fig. 3, 4, 5 and 8, in a second aspect, the embodiment of the present utility model further provides a brake assembly 2, including a brake body 50, a brake buffer 1 and a brake cable unit 60, wherein the brake body 50 has a rocker arm 51; the brake buffer 1 is arranged on the brake body 50; the brake cable unit 60 comprises a brake cable 61 and a spool 62, one end of the brake cable 61 is arranged in the first brake cable hole 121 and the second brake cable hole 22 in a penetrating mode and is connected with the rocker arm 51, the spool 62 is sleeved on the outer wall of the brake cable 61, and one end of the spool 62 is abutted to one end of the pressing column 20 extending out of the guide hole 112.

The brake assembly 2 provided by the embodiment of the utility model can be obtained by additionally arranging the brake buffer 1 on the existing brake structure, does not need to refit the brake body 50 and the brake unit, is simple and convenient to apply, and can be adapted to the existing brake units (such as a common brake cable and a hub brake cable) with various specifications and models on the market. The schematic structure of the brake assembly 2 with the brake damper 1 is shown in fig. 5 and 8. Taking fig. 5 as an example, when the vehicle is slowly braked, the brake cable 61 is pulled to rotate the rocker arm 51 clockwise, thereby braking the vehicle wheels. When sudden braking, the brake cable 61 is pulled to enable the rocker arm 51 to rotate clockwise, the wheels are locked due to the fact that the rotation amplitude of the rocker arm 51 is large when sudden braking is carried out, meanwhile, the spool 62 can push the pressure column 20 to move a small distance (1 mm, 1.5mm, 4mm and the like) against the pretightening force, the rocker arm 51 can rotate anticlockwise by a small amplitude due to the movement of the spool 62, and the wheels can be separated from the locking state due to the small amplitude of the anticlockwise rotation of the rocker arm 51, so that the anti-lock braking purpose is achieved.

Referring to fig. 5 and 8, in some possible embodiments, the brake body 50 has a fixing plate 52, the fixing plate 52 is provided with a mounting hole, and the buffer body 10 is provided with a mounting hole, where the mounting hole may be a threaded hole as shown in fig. 5 or a light hole as shown in fig. 8, and a user may select the mounting hole according to the actual situation.

It will be appreciated that the portions of the foregoing embodiments may be freely combined or omitted to form different combined embodiments, and the details of the respective combined embodiments are not described herein, so that after the description, the present disclosure may be considered as having described the respective combined embodiments, and the different combined embodiments can be supported.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. Brake buffer, its characterized in that includes:

The buffer body is provided with a containing cavity, a first brake wire hole is formed at one end of the buffer body, a guide hole is formed at the other end of the buffer body, and the first brake wire hole and the guide hole are respectively communicated with the containing cavity;

One end of the pressing column is in sliding fit with the inner wall of the accommodating cavity, the other end of the pressing column penetrates through the guide hole, and a through second wire braking hole is formed in the pressing column along the axial direction of the first wire braking hole; and

The buffer element is arranged in the accommodating cavity, two ends of the buffer element are respectively abutted to the inner wall of the accommodating cavity and the compression column, and the buffer element is configured with a pretightening force which enables the other end of the compression column to extend out of the guide hole.

2. The brake damper of claim 1, wherein the damper body includes:

The first buffer body is provided with an accommodating hole at one end and a guide hole at the other end, the guide hole is communicated with the accommodating hole, and the compression column and the buffer element are respectively accommodated in the accommodating hole; and

The second buffer body is connected to the opening of the accommodating hole and forms the first brake wire hole, the second buffer body and the first buffer body enclose together to form the accommodating cavity, and one end of the buffer element, which is far away from the pressure column, is abutted to the second buffer body.

3. The brake damper according to claim 2, wherein the receiving hole has an opening formed therein with an internal thread, and the second damper body is screw-fitted with an inner wall of the receiving hole.

4. The brake cushion according to claim 2, wherein an end of the second cushion body facing away from the first cushion body is formed with a mounting stud through which the first brake wire hole extends.

5. The brake damper of claim 4, wherein the damper body further includes a mounting nut that mates with the mounting stud.

6. The brake buffer according to claim 2, wherein the outer circumferences of the first buffer body and the second buffer body are each formed with an outer hexagonal shape.

7. The brake buffer according to claim 1, wherein a first limiting portion is formed on the outer periphery of the pressure post, one end of the buffer element abuts against the first limiting portion, and the brake buffer further comprises a buffer pad disposed in the accommodating cavity and located between the pressure post and the guide hole.

8. The brake damper according to claim 1, wherein an end portion of the damper body is formed with a second stopper portion along a circumferential direction of the guide hole.

9. Brake subassembly, its characterized in that includes:

the brake comprises a brake body, a brake control device and a brake control device, wherein the brake body is provided with a rocker arm;

The brake damper according to any one of claims 1 to 8, wherein the damper body is provided to the brake body; and

The brake cable unit comprises a brake cable and a spool, wherein one end of the brake cable is arranged in the first brake cable hole and the second brake cable hole in a penetrating mode and is connected with the rocker arm, the spool is sleeved on the outer wall of the brake cable, and one end of the spool is abutted to one end of the compression column, which extends out of the guide hole.

10. The brake assembly of claim 9, wherein the brake body has a mounting plate, the mounting plate defines a mounting hole, and the damper body is disposed in the mounting hole.