CN214450863U - Parking brake device and vehicle - Google Patents

Abstract

The utility model relates to a parking brake device and vehicle, parking brake device includes the brake caliper, the brake disc, the transmission shaft, power unit and compensation mechanism, brake caliper includes the brake caliper body, piston and brake block, the piston passes through sealing washer and brake caliper body sliding connection in the axial, the brake disc sets up between the brake caliper body and piston, the brake block has all been linked firmly to one side that brake caliper body and piston are close to the brake disc, the transmission shaft along the axial arrange and with brake caliper body sliding connection, compensation mechanism sets up between transmission shaft and piston, this compensation mechanism includes the adjusting part, the adjusting part sets up to can be along radially removing with the axial clearance between adjustment transmission shaft and the piston to all the time with transmission shaft and piston butt. The parking brake device can solve the technical problem of insufficient braking force of the parking brake device.

Description

Parking brake device and vehicle

Technical Field

The disclosure relates to the technical field of vehicle equipment, in particular to a parking brake device and a vehicle.

Background

The parking brake device is a technology for integrating a temporary brake function during driving and a long-term brake function after parking to realize parking brake. The parking brake device may be a hydraulic brake and an electric brake, respectively. In the related art, the parking brake device comprises a power mechanism, a brake pad and a brake disc, wherein the power mechanism drives the brake pad to abut against or be far away from the brake disc so as to realize parking brake or release parking brake, however, the brake pad is worn in the using process, so that a gap generated by the worn thickness of the brake pad needs to be compensated, the existing gap compensation device is complex in structure, and the brake force is often insufficient.

SUMMERY OF THE UTILITY MODEL

An object of the present disclosure is to provide a parking brake device capable of solving a technical problem of insufficient self-braking force.

In order to achieve the above objects, the present disclosure provides a parking brake apparatus including a brake caliper, a brake disc, a transmission shaft, a power mechanism, and a compensation mechanism, the brake caliper comprises a brake caliper body, a piston and a brake pad, the piston is connected with the brake caliper body in a sliding mode in the axial direction through a sealing ring, the brake disc is arranged between the brake caliper body and the piston, the brake pad is fixedly connected with one side of the brake caliper body and one side of the piston close to the brake disc, the transmission shaft is arranged along the axial direction and is connected with the brake caliper body in a sliding way, the compensation mechanism is arranged between the transmission shaft and the piston, the compensating mechanism comprises an adjusting piece which is arranged to be capable of moving along the radial direction so as to adjust the axial clearance between the transmission shaft and the piston and is always abutted against the transmission shaft and the piston.

Optionally, the piston has a mounting plate, the compensation mechanism includes an elastic member connected between the mounting plate and the adjustment member, the transmission shaft has a predetermined gap between the piston, the compensation mechanism has an initial position and a compensation position, the initial position, the predetermined gap is equal to the axial gap and the elastic member is compressed, the compensation position, the axial gap is greater than the predetermined gap, the elastic member can gradually push the adjustment member to move radially toward a direction close to the central axis of the transmission shaft when the axial gap gradually increases.

Optionally, the adjusting member is configured as an adjusting block, and both sides of the adjusting block in the axial direction respectively have a first contact surface in sliding contact with the transmission shaft and a second contact surface in sliding contact with the piston, the first contact surface gradually extends toward the central axis in the axial direction close to the piston, and the second contact surface vertically extends in the radial direction.

Optionally, the compensation mechanism comprises two sets of adjusting blocks and elastic pieces which are arranged at intervals in the radial direction, and one end of the transmission shaft, close to the piston, is configured to be conical and is in sliding contact with the two first contact surfaces respectively.

Optionally, the power mechanism comprises a driving part and a transmission structure, the transmission structure comprises a transmission part, and a worm wheel and a worm which are meshed with each other, an output shaft of the driving part is coaxially connected with the worm, and the worm wheel is in transmission connection with the transmission shaft through the transmission part so as to drive the transmission shaft to move axially.

Optionally, the transmission member includes a transmission pipe and a first ball, the transmission pipe is coaxially fixed to a portion of the transmission shaft extending out of the caliper body, at least one transmission groove extending along the axial spiral shape is formed in the periphery of the transmission pipe, the first balls are partially disposed in the transmission groove in a plurality of numbers, and are all in rolling contact with a matching hole wall of the worm wheel, the parking brake device includes a limiting structure, and the limiting structure is used for limiting rotation of the transmission shaft relative to the caliper body.

Optionally, the brake caliper includes a shaft sleeve fixed to the brake caliper body, the transmission shaft is slidably connected to the shaft sleeve, the limiting structure includes a first limiting groove, a second limiting groove and a second ball, the first limiting groove is disposed in the shaft sleeve and extends along the axial direction, the second limiting groove is disposed in the transmission shaft and extends along the axial direction, and the second ball is disposed in a limiting space enclosed by the first limiting groove and the second limiting groove.

Optionally, the parking brake device comprises a housing connected to the caliper body, the worm wheel and the worm being arranged in the housing.

According to a second aspect of the present disclosure, a vehicle is provided, which includes the parking brake device as described above.

Optionally, the vehicle includes a controller, and a front tilt angle sensor, a back tilt angle sensor and/or a rotation angle sensor electrically connected to the controller, the front tilt angle sensor and the back tilt angle sensor are respectively disposed at front and rear sides of a vehicle body, the rotation angle sensor rotates synchronously with the transmission shaft, and the controller is configured to control the transmission shaft to rotate by a preset angle according to the front tilt angle sensor and the back tilt angle sensor according to a braking state of the vehicle.

Through the technical scheme, in the parking arresting gear that this disclosure provided, the vehicle is when the braking, the brake block of brake disc both sides can press from both sides the brake disc and press from both sides the braking in order to realize the vehicle, however the brake block can take place wearing and tearing in long-time use and lead to the thickness attenuate, consequently, need compensate to the axial clearance between transmission shaft and the piston, it just can promote the piston to remove to avoid the transmission shaft to need to remove the certain distance, consequently, the adjusting part of this disclosure can radially remove in order to adapt to the axial clearance, guarantee that transmission shaft and piston can link together through the adjusting part all the time promptly, the transmission shaft can just start to remove through the adjusting part and promote the piston promptly, the compensation and the adaptation to the axial clearance have been realized promptly, thereby the phenomenon of not enough braking has been avoided takes place, the not enough technical problem of self braking force has been solved promptly.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

fig. 1 is a schematic structural view of a parking brake device provided according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a power mechanism in a parking brake device provided according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a transmission shaft in a parking brake device provided according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a vehicle provided in accordance with an embodiment of the present disclosure.

Description of the reference numerals

1-brake caliper, 11-brake caliper body, 12-piston, 121-mounting plate, 13-brake pad, 14-sealing ring, 15-shaft sleeve, 2-brake disc, 3-transmission shaft, 4-power mechanism, 41-driving part, 421-worm wheel, 422-worm, 423-transmission pipe, 424-first ball, 5-compensation mechanism, 51-adjusting part, 511-first contact surface, 512-second contact surface, 52-elastic part, 61-first limit groove, 62-second limit groove, 63-second ball, 7-shell, 100-controller, 200-front inclination angle sensor, 300-rear inclination angle sensor and 400-rotation angle sensor.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner and outer" means inner and outer of the profile of each component part itself, unless otherwise stated. The terms "first and second" are used herein to distinguish one element from another, and are not necessarily order nor importance. Moreover, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, and the disclosure will not be repeated here.

According to a specific embodiment of the present disclosure, there is provided a parking brake device, one embodiment of which is shown in fig. 1 to 3, and referring to fig. 1, the parking brake device includes a brake caliper 1, a brake disc 2, a transmission shaft 3, a power mechanism 4 and a compensation mechanism 5, the brake caliper 1 includes a caliper body 11, a piston 12 and a brake pad 13, the piston 12 is slidably connected with the caliper body 11 in an axial direction through a seal ring 14, the brake disc 2 is disposed between the caliper body 11 and the piston 12, the brake pad 13 is fixedly connected to each of the caliper body 11 and the piston 12 on a side close to the brake disc 2, the transmission shaft 3 is disposed in the axial direction and is slidably connected with the caliper body 11, here, the parking brake device may have a braking position and a releasing position, in the braking position, the power mechanism 4 drives the transmission shaft 3 to move close to the brake disc 2 along the axial direction, the sealing ring 14 is compressed, the brake pads 13 are all abutted against the brake disc 2, in the release position, the power mechanism 4 drives the transmission shaft 3 to move away from the brake disc 2 along the axial direction, the sealing ring 14 keeps the piston 12 away from the brake disc 2 and keeps the brake pad 13 on the piston 12 and the brake disc 2 always at a preset brake clearance, the braking principle is well known to those skilled in the art, the compensating gear 5 being arranged between the drive shaft 3 and the piston 12, the compensating mechanism 5 comprises an adjusting member 51, said adjusting member 51 being arranged to be movable in a radial direction to adjust the axial clearance between said drive shaft 3 and said piston 12 and to be always in abutment with said drive shaft 3 and said piston 12.

Through the technical scheme, in the parking brake device provided by the disclosure, when a vehicle is braked, namely when the parking brake device is in a braking position, the brake pads 13 on two sides of the brake disc 2 can clamp the brake disc 2 to realize braking of the vehicle, however, the brake pads 13 are worn to reduce the thickness in a long-time use process, so that the axial clearance between the transmission shaft 3 and the piston 12 needs to be compensated, and the transmission shaft 3 is prevented from moving for a certain distance to push the piston 12 to move, therefore, the adjusting member 51 can move in the radial direction to adapt to the axial clearance, namely, the transmission shaft 3 and the piston 12 can be always connected together through the adjusting member 51, namely, the transmission shaft 3 can push the piston 12 through the adjusting member 51 at the beginning of moving, namely, compensation and adaptation to the axial clearance are realized, and thus the phenomenon of insufficient braking is avoided, the technical problem that the braking force of the brake is insufficient is solved.

In the parking brake device provided by the present disclosure, in the release position, the seal ring 14 can move the piston away from the brake disc 2, however, the distance that the seal ring 14 can move the piston 12 has a limit value, and when the brake pad 13 on the piston 12 is worn and thinned, the piston 12 can only move the above-mentioned limit distance, so the piston 12 cannot return to the initial position.

It should be noted that the present disclosure does not limit the specific moving direction of the adjusting member 51, for example, the adjusting member 51 can move along the radial direction toward the central axis of the transmission shaft to accommodate the axial clearance, and can also move away from the central axis to accommodate the axial clearance. In addition, the movement of the adjusting member 51 can be realized automatically or by the control of a control mechanism, which is not limited by the present disclosure, and the structure of the adjusting member 51 is not limited by the present disclosure. In addition, the composition of the power mechanism 4 can be designed in various ways, and the present disclosure can be adaptively designed according to actual needs, and will be described in detail in the following embodiments.

In a specific embodiment of the present disclosure, referring to fig. 1, the piston 12 may have a mounting plate 121, the compensating mechanism 5 may include an elastic member 52 connected between the mounting plate 121 and the adjusting member 51, the transmission shaft 3 and the piston 12 have a predetermined gap therebetween, the compensating mechanism 5 has an initial position in which the predetermined gap is equal to the axial gap and the elastic member 52 is compressed, and a compensating position in which the axial gap is greater than the predetermined gap, and the elastic member 52 may gradually push the adjusting member 51 to move radially toward a direction close to the central axis of the transmission shaft 3 when the axial gap is gradually increased. In this way, the elastic member 52 can realize the adaptive compensation of the adjusting member to the circumferential clearance, thereby omitting a complicated control device, greatly simplifying the structure of the parking brake device, and improving the universality of the parking brake device without any external component support on the adjusting member 51. Of course, the elastic member 52 of the present disclosure may gradually push the adjusting member 51 to move radially away from the central axis of the transmission shaft 3 when the axial gap is gradually increased, which is not limited by the present disclosure.

According to a specific embodiment of the present disclosure, referring to fig. 1, the adjusting member 51 may be configured as an adjusting block, and both sides of the adjusting block in the axial direction respectively have a first contact surface 511 in sliding contact with the transmission shaft 3 and a second contact surface 512 in sliding contact with the piston 12, the first contact surface 511 gradually extends toward the central axis in the axial direction close to the piston 12, and the second contact surface 512 vertically extends in the radial direction. Thus, when the brake pad 13 on the piston 12 is thinned, a gap is generated between the first contact surface 511 and the transmission shaft 3, and the elastic element 52 pushes the adjusting block towards the central axis direction, so that the increase of the axial gap is adapted, the structure is simple and easy to realize, and the structure of the parking brake device is simplified. Of course, the two axial sides of the adjusting block of the present disclosure may be respectively provided with a compression spring, the pretightening force of the compression spring under the preset clearance is greater than the transmission force of the transmission shaft 3, so as to avoid the reduction of the axial clearance, and when the axial clearance is greater than the preset clearance, the compression spring can extend to adapt to and compensate the axial clearance, which is not limited by the present disclosure.

Alternatively, referring to fig. 1, the compensating mechanism 5 may include two sets of adjusting blocks and elastic members 52 arranged at intervals in the radial direction, and one end of the transmission shaft 3 near the piston 12 is configured to be tapered and slidably contact with the two first contact surfaces 511, respectively. Thus, the two adjusting blocks slide on two sides in the radial direction respectively, and stable compensation of the axial clearance can be realized. Of course, the compensation mechanism of the present disclosure may also include multiple sets of adjustment blocks and springs 52, which the present disclosure is not limited to. In addition, the elastic member 52 may be configured as a compression spring or a torsion spring in the present disclosure, which is not limited in the present disclosure.

The above describes a specific embodiment of the axial play compensation, and the following describes a specific composition of the power mechanism 4.

In the embodiment of the present disclosure, referring to fig. 1 and fig. 2, the power mechanism 4 may include a driving part 41 and a transmission structure, the transmission structure includes a transmission part and a worm wheel 421 and a worm 422 engaged with each other, an output shaft of the driving part 41 and the worm 422 are coaxially connected together, and the worm wheel 421 is in transmission connection with the transmission shaft 3 through the transmission part so as to be capable of driving the transmission shaft 3 to axially move. Therefore, the defects of high noise and weak overload capacity in the conventional parking braking process can be overcome through the transmission mode of the worm gear, and the transmission mode of the worm gear has a good self-locking function and can effectively avoid the problem of brake force attenuation in the parking braking process.

In some embodiments of the present disclosure, the transmission member may be configured in any suitable manner, and as shown in fig. 1, the transmission member includes a transmission tube 423 and first balls 424, the transmission tube 423 is coaxially fixed to a portion of the transmission shaft 3 extending out of the caliper body 11, an outer periphery of the transmission tube 423 is formed with at least one transmission groove (not shown in the drawings) spirally extending along the axial direction, the first balls 424 are partially disposed in the transmission groove in a plurality and are in rolling contact with a mating hole wall of the worm wheel 421, and the parking brake apparatus includes a limiting structure for limiting rotation of the transmission shaft 3 relative to the caliper body 11. Like this, the rotation of worm wheel 421 can make first ball 424 roll in the transmission groove that corresponds, because limit structure has restricted transmission shaft 3 for the rotation of brake caliper body 11, consequently first ball 424 can drive transmission pipe 423 along axial displacement, and then realized the axial displacement of transmission shaft 3, thereby effectively reduced the friction, the possibility that the transmission became invalid has been reduced, the transmission mode of screw nut in the past has been replaced simultaneously, the requirement to driving piece power has been reduced, the life of spare part has been prolonged, the stability of spare part has been improved. Here, the present disclosure does not limit the specific structure of the position limiting structure, and the present disclosure will be described in detail in the following embodiments.

In some embodiments of the present disclosure, referring to fig. 1 and 3, the brake caliper 1 may include a shaft sleeve 15 fixed to the brake caliper body 11, the transmission shaft 3 is slidably connected to the shaft sleeve 15, the limiting structure includes a first limiting groove 61, a second limiting groove 62 and a second ball 63, the first limiting groove 61 is disposed in the shaft sleeve 15 and extends along the axial direction, the second limiting groove 62 is disposed in the transmission shaft 3 and extends along the axial direction, and the second ball 63 is disposed in a limiting space surrounded by the first limiting groove 61 and the second limiting groove 62. In this way, the second balls 63 can roll in the axial direction to reduce the friction between the transmission shaft 3 and the sleeve, and the limiting space can limit the second balls 63 from rolling in the circumferential direction, so that the rotation of the transmission shaft 3 relative to the caliper body 11 is limited, and the service life of the parts is prolonged. Of course, the limiting structure of the present disclosure may also be configured in a manner of a limiting groove and a limiting block, the limiting block is fixed to the transmission shaft, and the limiting groove extends along the axial direction, which is not limited by the present disclosure.

Further, referring to fig. 1, the parking brake device may include a housing 7 connected to the caliper body 11, and the worm wheel 421 and the worm 422 are disposed in the housing 7. Thus, the worm wheel 421 and the worm 422 can be effectively protected, and the normal operation of the parking brake device can be ensured.

According to a second aspect of the present disclosure, a vehicle is provided, which includes the parking brake device as described above, so that the vehicle can achieve effective parking of itself, improving safety of vehicle driving.

In an embodiment of the present disclosure, referring to fig. 1 and 4, the vehicle includes a controller 100 and a front lean angle sensor 200, a rear lean angle sensor 300 and/or a rotation angle sensor 400 electrically connected to the controller 100, the front lean angle sensor 200 and the rear lean angle sensor 300 are respectively disposed at front and rear sides of a vehicle body, the rotation angle sensor 400 rotates in synchronization with the propeller shaft 3, and the controller 100 is configured to control the propeller shaft 3 to rotate by a preset angle according to a braking state (e.g., a braking position) of the vehicle according to the front lean angle sensor 200 and the rear lean angle sensor 300. In this way, in the manner in which the vehicle includes the rotation angle sensor 400, the controller 100 can acquire the rotation angle of the worm wheel 421 in real time, thereby enabling monitoring and adjustment in time; in the case where the vehicle includes the front inclination angle sensor 200 and the rear inclination angle sensor 300, the controller 100 can adjust the actual rotation angle required for the worm wheel 421 according to the maximum inclination angles of the front inclination angle sensor 200 and the rear inclination angle sensor 300 for braking the vehicle on an inclined slope, thereby ensuring sufficient braking force. Of course, the vehicle of the present disclosure may include the front inclination angle sensor 200, the rear inclination angle sensor 300, and the rotation angle sensor 400 at the same time, which is not limited by the present disclosure.

Hereinafter, the present disclosure will describe in detail a specific operation of the parking brake device. Here, the vehicle can be classified into three states of braking on a flat road surface, braking on a slope, and starting on a half slope. In the flat road braking mode, when the parking brake is needed, the controller 100 controls the transmission shaft 3 to move so that the parking brake device is in the braking position, the actual rotation angle of the worm wheel 421 is detected through the rotation angle sensor 400, when the brake needs to be released, the controller 100 controls the transmission shaft 3 to return to the original position, the sealing ring 14 can enable the piston 12 to retreat, and the compensation mechanism 5 can implement and adaptively supplement the axial clearance, so that the normal operation of the parking brake device is ensured. In the hill braking mode, the controller 100 needs to first acquire the maximum inclination angle of the vehicle to calculate the actual rotation angle of the worm wheel 421, and then perform switching between the braking position and the release position. In the hill start mode, the controller 100 controls the parking brake device not to be directly switched to the release position, and when the vehicle starts, the worm 422 is controlled to rotate or not to slowly release the braking force through periodic power on and off, so that the purpose of linear braking is achieved, and safety accidents such as vehicle sliding and the like are avoided when the vehicle starts.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. The utility model provides a parking brake device, its characterized in that, parking brake device includes brake caliper (1), brake disc (2), transmission shaft (3), power unit (4) and compensating mechanism (5), brake caliper (1) includes brake caliper body (11), piston (12) and brake block (13), piston (12) through sealing washer (14) with brake caliper body (11) is sliding connection on the axial, brake disc (2) set up brake caliper body (11) with between piston (12), brake caliper body (11) with one side that piston (12) are close to brake disc (2) all link firmly brake block (13), transmission shaft (3) are followed the axial arrange and with brake caliper body (11) sliding connection,

the compensating mechanism (5) is arranged between the transmission shaft (3) and the piston (12), the compensating mechanism (5) comprises an adjusting piece (51), and the adjusting piece (51) is arranged to be capable of moving along the radial direction to adjust the axial clearance between the transmission shaft (3) and the piston (12) and is always abutted to the transmission shaft (3) and the piston (12).

2. Parking brake arrangement according to claim 1, wherein the piston (12) has a mounting plate (121), the compensation mechanism (5) comprises a resilient member (52) connected between the mounting plate (121) and the adjustment member (51), the transmission shaft (3) and the piston (12) having a predetermined clearance therebetween, the compensation mechanism (5) having an initial position in which the predetermined clearance is equal to the axial clearance and the resilient member (52) is compressed, and a compensation position in which the axial clearance is larger than the predetermined clearance, the resilient member (52) being capable of gradually urging the adjustment member (51) radially towards the central axis of the transmission shaft (3) when the axial clearance is gradually increased.

3. Parking brake arrangement according to claim 2, characterized in that the adjusting member (51) is configured as an adjusting block having a first contact surface (511) in sliding contact with the transmission shaft (3) and a second contact surface (512) in sliding contact with the piston (12) on both axial sides thereof, the first contact surface (511) gradually extending towards the centre axis in the axial direction close to the piston (12), the second contact surface (512) extending vertically in the radial direction.

4. Parking brake arrangement according to claim 3, characterized in that the compensation means (5) comprises two sets of adjustment blocks and elastic elements (52) arranged radially at a distance, the end of the transmission shaft (3) close to the piston (12) being configured conical and in sliding contact with the two first contact surfaces (511), respectively.

5. Parking brake arrangement according to any one of claims 1-4, wherein the power mechanism (4) comprises an actuating element (41) and a transmission structure, the transmission structure comprises a transmission element and a worm wheel (421) and a worm (422) which are engaged with each other, the output shaft of the actuating element (41) and the worm (422) are coaxially connected together, and the worm wheel (421) is in transmission connection with the transmission shaft (3) through the transmission element so as to be able to drive the transmission shaft (3) to axially move.

6. Parking brake arrangement according to claim 5, characterized in that the transmission member comprises a transmission tube (423) and first balls (424), the transmission tube (423) being coaxially fixed to the portion of the transmission shaft (3) extending out of the caliper body (11), the transmission tube (423) being formed with at least one transmission groove extending helically in the axial direction on its outer circumference, the first balls (424) being provided in a plurality and in turn partially in the transmission groove and each being in rolling contact with a mating hole wall of the worm wheel (421),

the parking brake device comprises a limiting structure, and the limiting structure is used for limiting the rotation of the transmission shaft (3) relative to the brake caliper body (11).

7. Parking brake arrangement according to claim 6, wherein the brake caliper (1) comprises a sleeve (15) fixed to the brake caliper body (11), the transmission shaft (3) is slidably connected to the sleeve (15), the limiting structure comprises a first limiting groove (61), a second limiting groove (62) and a second ball (63), the first limiting groove (61) is disposed in the sleeve (15) and extends along the axial direction, the second limiting groove (62) is disposed in the transmission shaft (3) and extends along the axial direction, and the second ball (63) is disposed in a limiting space enclosed by the first limiting groove (61) and the second limiting groove (62).

8. Parking brake arrangement according to claim 5, characterized in that it comprises a housing (7) connected to the caliper body (11), the worm wheel (421) and the worm (422) being arranged in the housing (7).

9. A vehicle characterized by comprising the parking brake apparatus according to any one of claims 1 to 8.

10. The vehicle according to claim 9, characterized in that the vehicle comprises a controller (100), a front tilt sensor (200), a rear tilt sensor (300) and/or a rotation angle sensor (400) electrically connected to the controller (100), the front tilt sensor (200) and the rear tilt sensor (300) are respectively disposed on front and rear sides of a vehicle body, the rotation angle sensor (400) rotates synchronously with the propeller shaft (3), and the controller (100) is configured to control the propeller shaft (3) to rotate by a preset angle according to the front tilt sensor (200) and the rear tilt sensor (300) according to a braking state of the vehicle.

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