CN214356504U

CN214356504U - Brake assembly and vehicle

Info

Publication number: CN214356504U
Application number: CN202023082710.3U
Authority: CN
Inventors: 曹双华; 王轩
Original assignee: Mobai Beijing Information Technology Co Ltd
Current assignee: Mobai Beijing Information Technology Co Ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-10-08
Anticipated expiration: 2030-12-18

Abstract

The application discloses brake subassembly and vehicle. This brake subassembly includes: a carrier; a brake lever having a first end pivotally connected to the carrier member and a second end configured to rotate about the first end of the brake lever between a braking position and a release position; the first end of the wire pipe is fixed, and the second end of the wire pipe is connected with the bearing piece; the first end of the brake cable extends out of the first end of the spool, and the second end of the brake cable extends out of the second end of the spool and is connected with the second end of the brake handle; the adjusting piece is movably arranged on the bearing piece and connected with the second end of the spool, and the adjusting piece is used for adjusting the tension of the spool so as to adjust the length of the second end of the brake cable extending out of the second end of the spool; the driving assembly is arranged on the bearing part and movably connected with the adjusting part, and the driving assembly drives the adjusting part to move under the condition that the length of the second end of the brake cable extending out of the second end of the spool is smaller than the preset length. The technical effect of this application lies in can be when the brake cable is too loose the elasticity degree of automatically regulated brake cable.

Description

Brake assembly and vehicle

Technical Field

The application belongs to the technical field of vehicles, and particularly relates to a brake assembly for a vehicle and the vehicle.

Background

With the rapid development of the shared-bicycle industry in recent years, consumers have favored shared-bicycle as a vehicle for short trips. The shared bicycle comprises common bicycles, mopeds, electric bicycles and other shared riding vehicles. A large number of different types of shared single vehicles are thrown into urban traffic, and influence is caused on urban traffic safety management.

The brake cable of the bicycle on the market is continuously stretched after the bicycle is used for a period of time, the stretching is irreversible, and the brake is failed when the brake handle stroke is lengthened by more than a certain amount, so that traffic accidents can occur during riding of the shared bicycle. On the one hand, how to provide reliable and safe riding experience for the consumers sharing the bicycle becomes a technical problem of the industry of sharing the bicycle. On the other hand, the operator of the shared bicycle needs to reduce the increase of the operation and maintenance cost of the shared bicycle caused by the loosening of the brake cable.

There is therefore a need for improvements to existing shared bicycle equipment to provide a more reliable braking experience.

SUMMERY OF THE UTILITY MODEL

It is an object of the present application to provide a brake assembly for a vehicle.

According to a first aspect of the present application, there is provided a brake assembly comprising:

a carrier;

a brake lever, a first end of the brake lever being pivotally connected to the carrier member, a second end of the brake lever being configured to rotate about the first end of the brake lever between a braking position and a release position;

a conduit having a first end secured thereto and a second end connected to the carrier;

the first end of the brake cable extends out of the first end of the spool, and the second end of the brake cable extends out of the second end of the spool and is connected with the second end of the brake handle;

the adjusting piece is movably arranged on the bearing piece and connected with the second end of the spool, and the adjusting piece is used for adjusting the tension of the spool so as to adjust the length of the second end of the brake cable extending out of the second end of the spool;

the driving assembly is arranged on the bearing part and is movably connected with the adjusting part, and the second end of the brake cable extends out of the second end of the spool under the condition that the length of the second end of the spool is smaller than the preset length, the driving assembly drives the adjusting part to move.

Optionally, a containing cavity with an opening is formed in the bearing piece, the adjusting piece is a hollow adjusting bolt, the second end of the brake cable passes through the adjusting bolt to be connected with the brake handle,

adjusting bolt's first end passes the opening stretches into hold the chamber, adjusting bolt's second end with drive assembly connects, adjusting bolt's second end terminal surface ends the second end terminal surface of spool, adjusting bolt with opening threaded connection just can be rotatable around the axis of self.

Optionally, the second end of the adjusting bolt is provided with a matching portion, the first end of the driving assembly is connected with the matching portion to drive the adjusting bolt to rotate around the axis of the driving assembly, and the second end of the driving assembly is connected with the first end of the brake handle.

Optionally, the matching part is a gear arranged on the periphery of the adjusting bolt, a plurality of tooth grooves distributed along the circumferential direction of the adjusting bolt at intervals are formed in the gear, the driving assembly is a movable stop block, the first end of the movable stop block is adjacent to two tooth grooves and can move between the tooth grooves so as to drive the adjusting bolt to rotate around the axis of the adjusting bolt, and the second end of the movable stop block is connected with the first end of the brake handle.

Optionally, the second end of the movable stop is pivotally connected to the carrier, and the drive assembly further comprises:

and the first end of the connecting piece is connected with the second end of the brake handle, and the second end of the connecting piece is connected with the movable stop block.

Optionally, the connector is a spring.

Optionally, the movable stop is a Z-shaped member.

Optionally, a protruding portion protruding from the movable block is disposed on a side, adjacent to the adjusting bolt, of the first end of the movable block, and at least a portion of the protruding portion can extend into the tooth slot.

Optionally, the gear is a one-way gear, the first side surface of each tooth groove is a plane extending in the radial direction of the adjusting bolt, and the second side surface of each tooth groove is an inclined surface extending obliquely relative to the first side surface.

The present application further provides a vehicle, comprising:

the brake component;

a vehicle body on which the carrier is disposed.

The application has the technical effects that the brake assembly is reliable in structure, and the tightness degree of a brake cable of a vehicle can be automatically adjusted, so that the brake sensitivity of the vehicle in the driving process is ensured. The brake assembly provides a condition for improving riding safety.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

FIG. 1 is a schematic perspective view of a brake assembly provided herein;

FIG. 2 is a schematic view of a brake lever of the brake assembly provided herein in a release position;

FIG. 3 is a schematic illustration of the brake lever of the brake assembly provided herein in a braking position;

FIG. 4 is a partial exploded view of the brake assembly provided herein;

FIG. 5 is a perspective view of an adjustment member of the brake assembly provided herein;

FIG. 6 is a perspective view of a movable stop of the brake assembly provided herein.

Description of reference numerals:

in the figure: a brake assembly 100; a carrier 10; a brake handle 20; a conduit 30; a brake cable 40;

an adjusting member 50; a fitting portion 51; a gullet 52; a first side 53; a second side 54; a drive assembly 60; a movable stopper 61; a connecting member 62; a projection 63.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The present application provides a brake assembly 100. the brake assembly 100 includes a carrier member 10, a brake lever 20, a spool 30, a brake cable 40, an adjustment member 50, and a drive assembly 60. As shown in fig. 1, the supporting member 10 can support and limit the brake handle 20, the adjusting member 50 and the driving assembly 60, so that the brake handle 20, the adjusting member 50 and the driving assembly 60 can be fixedly placed on the supporting member 10 for the user to use.

For convenience of description, the direction in which the user faces the handle is defined as a front side, the direction facing away from the handle is defined as a rear side, the direction corresponding to the position of the left hand is defined as a left side, and the direction corresponding to the position of the right hand is defined as a right side. The brake assembly 100 according to the embodiment of the present application will be described in detail with reference to the right handle as an example, and the direction of movement of the brake handle 20 when the user grips the brake handle 20 is the rear side, the direction of movement of the brake handle 20 when the user releases the brake handle 20 is the front side, the direction of the brake handle 20 adjacent to the brake cable 40 is the left side, and the direction of the brake handle 20 away from the brake cable 40 is the right side, as seen in fig. 2 and 3. Similarly, the definitions of front, rear, left and right sides are equally applicable to the various drawings that will be described later.

It should be noted that the above definitions of front, rear, left and right sides are only for convenience of describing the position relationship or connection relationship between the components or parts of the brake assembly 100 of the embodiment of the present application, and do not limit the embodiment of the present application.

As shown in fig. 1, the supporting member 10 is formed with a platform for supporting and supporting the brake handle 20, the adjusting member 50 and the driving assembly 60. The first end of the brake handle 20 is pivotally connected to the carrier 10, and a rotating shaft or the like may be arranged between the first end of the brake handle 20 and the carrier 10 to achieve the positioning and rotation of the brake handle 20. The second end of handlebar 20 is configured to rotate about the first end of handlebar 20 between a braking position and a release position. As shown in fig. 2 and 3, the left side of the brake handle 20 corresponding to the right handle is provided with a first end and a second end, respectively, and a third end may be provided at the right side of the brake handle 20. The second end of the brake lever 20 may be located on the rear side of the brake lever 20. When braking, the user's right hand can hold the third end of the brake handle 20 corresponding to the right handle, and drive the third end of the brake handle 20 to rotate clockwise around the first end of the brake handle 20. During rotation of the third end of the brake lever 20, the second end of the brake lever 20 is also able to rotate around the first end of the brake lever 20.

As shown in fig. 1 to 4, the brake assembly 100 further includes a wire tube 30, the wire tube 30 may be a hollow structure, and the wire tube 30 may include an inner layer structure and an outer layer structure, wherein the inner layer structure may be a steel tube, and the outer layer structure disposed outside the inner layer structure may be a rubber tube. The first end of conduit 30 may be in a fixed state and the second end of conduit 30 is connected to the carrier 10. That is, a first end of the spool 30 is adjacent the brake pad and a second end of the spool 30 is connected to the carrier 10. A brake cable 40 is disposed within the hollow spool 30, and a first end of the brake cable 40 extends from the first end of the spool 30 and is connectable to the brake pads. A second end of the brake cable 40 extends from the second end of the conduit 30 and is connectable with a second end of the brake lever 20.

When a user holds the third end of the brake handle 20 corresponding to the right handle, the user can drive the second end of the brake handle 20 to move clockwise to a braking position, and drive the second end of the brake cable 40 to move towards the brake handle 20. Since the first end of the brake cable 40 is in a fixed state, the brake cable 40 tends to be straightened, the line pipe 30 sleeved on the outer periphery of the brake cable 40 tends to be straight, and the line pipe 30 extends. Since the second end of the line tube 30 can be connected to the supporting member 10, the first end of the line tube 30 will extend toward the first end of the brake cable 40, and finally the brake pad will be pushed toward the wheel, thereby achieving the purpose of braking. The brake pads and the connection structure between the brake pads and the conduit 30 can be known in the art, and are not described herein.

When a user releases the third end of the brake handle 20, the second end of the brake handle 20 can be driven to move from the braking position to the releasing position, and the brake pad is far away from the vehicle, so that the purpose of releasing the brake is achieved. The moving direction of the brake cable 40 and the spool 30 is opposite to that of the brake during the process of releasing the brake, and the detailed description thereof is omitted.

It should be noted that the length of the second end of the brake cable 40 extending out of the conduit 30 when the brake lever 20 is in the braking position can be defined as L1. The length of the second end of the brake cable 40 extending out of the conduit 30 when the brake lever 20 is in the release position can be defined as L2, with L2 being less than L1.

Fig. 1 to 5 show that an adjusting member 50 is further provided on the carrier 10, and the adjusting member 50 is movably provided on the carrier 10 and connected to the second end of the conduit 30. The tension of the spool 30 can be adjusted by the adjustment member 50 to adjust the length of the second end of the brake cable 40 that extends beyond the second end of the spool 30 in either the braking position or the release position. In use, the user may control the relative position of the adjustment member 50 and the carrier member 10, either manually or by mechanical means. The adjustment element 50 can be driven to move away from the brake lever 20 when the user perceives that the brake cable 40 is loose, for example, when the brake cable 40 is loose, the adjustment element 50 in fig. 1 can be driven to move to the left, the brake cable 40 has a tendency to straighten and the conduit 30 starts to extend. The brake pads connected to the first end of the adjusted brake cable 40 are closer to the wheel than before adjustment. Similarly, when the user senses that the brake cable 40 is tight, the adjusting member 50 in fig. 1 can be driven to move to the right, and the brake pad connected to the first end of the adjusted brake cable 40 is farther away from the wheel than before adjustment.

As shown in fig. 1 to 4 and 6, a driving assembly 60 is further provided on the carrier 10, and the driving assembly 60 can be movably connected with the adjusting member 50. The actuating assembly 60 actuates the adjustment member 50 when the brake lever 20 is in the braking or release position and when the second end of the brake cable 40 extends beyond the second end of the conduit 30 by less than a predetermined length. That is, when the second end of the brake cable 40 extends beyond the second end of the spool 30 by a predetermined length when the brake lever 20 is in the braking position or in the release position, the user perceives the brake cable 40 as being in a non-slack state. Wherein the length of the second end of the brake cable 40 extending out of the second end of the conduit 30 when the brake lever 20 is in the braking position can be defined as a predetermined length, or the length of the second end of the brake cable 40 extending out of the second end of the conduit 30 when the brake lever 20 is in the releasing position can be defined as a predetermined length. It should be noted that if one of the braking and release positions is selected as the reference position during adjustment of the drive assembly 60, the selected reference position may always be used.

When the second end of the brake cable 40 extends beyond the second end of the conduit 30 by less than a predetermined length, i.e., when the brake cable is loose, the drive assembly 60 is able to self-adjust the relative positional relationship of the adjustment member 50 to the carrier member 10 to increase the length of the second end of the brake cable 40 that extends beyond the second end of the conduit 30. Wherein the drive assembly 60 may be in a self-driven control configuration or in a follow-up control configuration.

On the one hand, the brake assembly 100 that this application provided can adjust the elasticity degree of brake cable 40 through regulating part 50, avoids brake cable 40 too loose or tension for brake assembly 100 can provide better brake when being applied to shared bicycle and experience.

On the other hand, the present application enables the relative positional relationship between the adjusting member 50 and the carrier 10 to be self-adjusted by the drive assembly 60 by providing the drive assembly 60 on the carrier 10, so that the length of the second end of the brake cable 40 extending out of the second end of the conduit 30 can be automatically adjusted when the brake cable 40 is too loose. The design mode facilitates self-adjustment when the brake cable 40 is too loose, and contributes to realizing constant brake stroke.

Alternatively, the supporting member 10 has an open receiving cavity therein, the adjusting member 50 is a hollow adjusting bolt, and the second end of the brake cable 40 can be connected to the brake handle 20 after passing through the hollow structure of the adjusting bolt. The first end of adjusting bolt passes the opening and stretches into and holds the chamber, and adjusting bolt's second end is connected with drive assembly 60, and adjusting bolt's second end terminal surface end is stopped and is supported the second end terminal surface of spool 30, and adjusting bolt and opening threaded connection just can be rotatable around the axis of self. When a user installs the brake cable 40, the first end of the adjusting bolt can be screwed into the accommodating cavity through the opening, when the user needs to tighten the brake cable 40, the user can screw the adjusting bolt back to the position of the brake handle 20 through the driving assembly 60, and when the user needs to loosen the brake cable 40, the user can screw the adjusting bolt towards the position of the brake handle 20 through the driving assembly 60. When the brake cable 40 of the right handle is tightened, the adjusting bolt in FIG. 1 is driven to move leftwards through the driving assembly 60; when the brake cable 40 is loosened, the adjusting bolt in fig. 1 is driven to move rightward by the driving assembly 60.

In an alternative embodiment of the present application, as shown in fig. 1, the second end of the adjusting bolt is provided with an engagement portion 51, and the engagement portion 51 can function as a transmission force. A first end of the driving assembly 60 is connected with the fitting part 51 to drive the adjusting bolt to rotate around its own axis, and a second end of the driving assembly 60 is connected with a first end of the brake lever 20. That is, during the process of the user gripping or releasing the brake handle 20, the driving assembly 60 can drive the engaging portion 51 to rotate around the axis of the adjusting bolt through a direct or indirect structure, so as to drive the adjusting bolt to rotate around the axis thereof, thereby achieving the tightness adjustment of the brake cable 40.

Alternatively, as shown in fig. 5, the fitting part 51 is a gear disposed on the outer periphery of the adjusting bolt, the gear is provided with a plurality of tooth grooves 52 spaced apart along the circumferential direction of the adjusting bolt, the driving assembly 60 includes a movable stopper 61, a first end of the movable stopper 61 is movable between two adjacent tooth grooves 52 to drive the adjusting bolt to rotate around its axis, a second end of the movable stopper 61 is connected with a first end of the brake handle 20, and the movable stopper 61 can be driven to move by the brake handle 20. That is, when the brake lever 20 is moved between the braking position and the release position, the movable stopper 61 is moved to transmit the driving force, and the engagement portion 51 is rotated by moving the movable stopper 61 between the adjacent two tooth grooves 52 of the engagement portion 51.

It should be noted that when the length of the second end of the brake cable 40 extending out of the second end of the spool 30 is not less than the predetermined length, the movable stopper 61 may stop transmitting power or move only in one of the tooth slots 52 to avoid causing the engagement portion 51 to rotate.

Alternatively, as shown in fig. 1, the second end of the movable stopper 61 is pivotally connected to the carrier 10, and the driving assembly 60 further includes: and a connecting piece 62, wherein a first end of the connecting piece 62 is connected with a second end of the brake handle 20, and a second end of the connecting piece 62 is connected with the movable stop 61. That is, a connecting member 62 is provided between the movable stopper 61 and the second end of the brake lever 20, and the transmission and/or reversal of force can be achieved through the connecting member 62.

Alternatively, as shown in fig. 1-4, the connector 62 is a spring. The spring has a spring force and is movable between a compressed state, a free state and an extended state. When the brake handle 20 is in the braking position, the spring can be in a free state or a compressed state, and the spring can apply a driving force to the movable stopper 61 to rotate clockwise or counterclockwise around the axial direction of the adjusting bolt. When the brake lever 20 is in the release position, the spring can be in an extended state, and the spring can apply a driving force to the movable stopper 61 to rotate the movable stopper counterclockwise or clockwise around the axial direction of the adjusting bolt. Wherein the spring applies an opposite direction of drive force to the movable stop 61 when the brake lever 20 is in the braking position and the release position. It should be noted that when the rotation of the adjusting bolt in the clockwise direction is defined as moving the first end of the adjusting bolt toward the receiving cavity, and when the brake lever 20 is in the braking position, the spring can apply a force to the adjusting bolt to drive the adjusting bolt to rotate clockwise.

Alternatively, as shown in fig. 1 to 4 and 6, the movable stopper 61 is a zigzag member, and a zigzag structure is adopted, so that not only power transmission but also direction conversion of force can be realized. As shown in FIG. 4, the first limb of the Z-shaped member may be parallel to the axial direction of the adjuster bolt and the second limb of the Z-shaped member may extend toward the location of the spring.

Alternatively, as shown in fig. 6, a side of the first end of the movable stopper 61 adjacent to the adjusting bolt is provided with a protrusion 63 protruding from the movable stopper 61, and at least a portion of the protrusion 63 can extend into the tooth slot 52, so that not only can the protrusion 63 be prevented from being separated from the adjusting bolt, but also the protrusion 63 can apply a force to the adjusting bolt.

Alternatively, as shown in fig. 5, the gear is a one-way gear, the first side surface 53 of each tooth groove 52 is a flat surface extending in the radial direction of the adjustment bolt, the second side surface 54 of each tooth groove 52 is an inclined surface extending obliquely with respect to the first side surface 53, and the projection 63 is slidable along the inclined surface. Specifically, when the second end of the brake cable 40 extends beyond the second end of the spool 30 by not less than the predetermined length, the range of the angle of movement of the second end of the brake lever 20 around the first end of the brake lever 20 is α, α is small, resulting in a small amount of deformation of the spring, and the driving force F1 of the spring cannot move the projection 63 between two adjacent catching grooves 52. When the second end of the brake cable 40 extends out of the second end of the spool 30 by a length less than the predetermined length, the second end of the brake lever 20 moves around the first end of the brake lever 20 by an angle β, β is greater than α, resulting in a greater amount of deformation of the spring, and the driving force F1 of the spring is sufficient to drive the protrusion 63 to jump from one of the notches 52 to the adjacent other notch 52.

As shown in fig. 5, since the first side surface 53 of the engaging groove 52 is a plane and the second side surface 54 is an inclined surface, not only can the adjusting bolt rotate in one direction, but also the brake cable 40 can be automatically tightened. The fitting relationship between the movable stopper 61 and the adjusting member 50 according to the embodiment of the present application will be described in detail with reference to specific embodiments.

First, the tension of the brake cable 40 is within a predetermined range

The tension of the brake cable 40 is within a predetermined range, i.e. the second end of the brake cable 40 extends beyond the second end of the spool 30 by no less than a predetermined length, and the rotation angle of the second end of the brake lever 20 is small.

When the user grips the brake handle 20 to brake, the movable stopper 61 can contact the second inclined surface 54 in the card slot 52 where the user is currently located. When the second end of the brake lever 20 reciprocates between the braking position and the release position, the movable stop 61 can reciprocate along the second inclined surface 54, and the adjusting member 40 cannot rotate, so that the relative position between the spool 30 and the supporting member 10 and the tightness of the brake cable 40 cannot be adjusted.

In the second case, the tension of the brake cable 40 is less than the predetermined range

The tension of the brake cable 40 is less than the predetermined range, i.e. the brake cable 40 is stretched to a certain extent, the length of the second end of the brake cable 40 extending out of the second end of the spool 30 is less than the predetermined length, the brake cable 40 is looser, and the rotation angle of the second end of the brake lever 20 is larger.

When the user grips the brake handle 20 to brake, the movable stopper 61 can jump from the current slot 52 to the next slot 52. Subsequently, the user releases the brake lever 20, the movable stop 61 is able to strike the teeth of the peripheral surface of the gear, the gear rotates and consequently rotates the adjusting member 10 towards the side facing away from the position of the brake lever 20 and consequently pushes the spool 30 towards the side facing away from the position of the brake lever 20, and the tension of the brake cable increases. It should be noted that the steps in the first case are executed after the tension of the brake cable is increased to be within a predetermined range.

The present application further provides a vehicle that may be a shared bicycle that may be a bicycle, an electric bicycle, a power assisted bicycle, a two-wheeled electric vehicle, a three-wheeled electric vehicle, or the like. The vehicle comprises the brake assembly 100 and the vehicle body of any one of the embodiments. The carrier 10 may be provided on the body of the vehicle for providing a bearing function for the brake lever 20, the drive assembly 60, the adjustment member 50, etc. This sharing bicycle can provide better brake experience for the user. The shared bicycle can automatically tighten the brake cable 40 when the brake cable 40 is too loose, so that the brake effect is kept, and the reduction of the brake sensitivity and the brake effect when the riding time is too long is avoided.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. A brake assembly, comprising:

a carrier;

2. The brake assembly of claim 1, wherein the carrier member has an open receiving cavity formed therein, the adjustment member is a hollow adjustment bolt, the second end of the brake cable is connected to the brake handle through the adjustment bolt,

3. The brake assembly of claim 2, wherein the second end of the adjustment bolt is provided with an engagement portion, the first end of the drive assembly is coupled to the engagement portion to drive the adjustment bolt to rotate about its own axis, and the second end of the drive assembly is coupled to the first end of the brake lever.

4. The brake assembly of claim 3, wherein the engaging portion is a gear disposed on the outer periphery of the adjusting bolt, the gear is provided with a plurality of tooth grooves spaced apart along the circumferential direction of the adjusting bolt, the driving assembly includes a movable stopper, a first end of the movable stopper is movable between two adjacent tooth grooves to drive the adjusting bolt to rotate around its axis, and a second end of the movable stopper is connected to the first end of the brake handle.

5. The brake assembly of claim 4, wherein the second end of the movable stop is pivotally connected to the carrier, the drive assembly further comprising:

6. The brake assembly of claim 5, wherein the connector is a spring.

7. The brake assembly of claim 4, wherein the movable stop is a Z-shaped member.

8. The brake assembly of claim 7, wherein a side of the first end of the movable stop adjacent to the adjustment bolt is provided with a protrusion protruding from the movable stop, and at least a portion of the protrusion is capable of extending into the tooth slot.

9. The brake assembly of claim 4, wherein the gear is a one-way gear, the first side of each of the tooth grooves is a flat surface extending in a radial direction of the adjustment bolt, and the second side of each of the tooth grooves is a slanted surface extending obliquely with respect to the first side.

10. A vehicle, characterized by comprising:

the brake assembly of any one of claims 1-9;

a vehicle body on which the carrier is disposed.