All-terrain vehicle

Abstract

The utility model provides an all-terrain vehicle, and relates to the technical field of all-terrain vehicles. The all-terrain vehicle comprises a vehicle frame, an advancing mechanism and a braking system. A suspension is arranged on the frame; the advancing mechanism comprises wheels, and the wheels are installed on the suspension. The brake system comprises a brake disc, a caliper main body, brake calipers, a motor and a protective plate; the brake disc and the wheel are relatively fixed; the caliper main body is mounted on the suspension; the brake caliper is installed on the caliper body and moves relative to the caliper body so as to clamp or loosen the brake disc. The motor drives the brake caliper to move relative to the caliper main body; the protection plate is arranged on the caliper body, and at least part of the protection plate is located on the front side of the motor in the advancing direction of the all-terrain vehicle. The efficiency of driving the brake calipers through the motor is high, and the motor can control the clamping force of the brake calipers to the brake disc, so that the brake effect of the brake system is adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to all terrain vehicle technical field, concretely relates to a door structure and vehicle. BACKGROUND

[0002] Traditional braking system of all terrain vehicle realizes the braking of vehicle through mechanical mode, including the running brake of foot pressing and the parking brake of hand brake operating mechanism, and realizes the braking through the operation of driver. The parking brake of hand brake usually clamps brake pad through cable, and the operation is inconvenient and the mechanical efficiency is low. SUMMARY

[0003] In view of the problems existing in the prior art, the utility model provides an all terrain vehicle to improve the problem of low mechanical efficiency of hand brake of existing all terrain vehicle through cable.

[0004] To realize above-mentioned purpose and other related purposes, the utility model provides an all terrain vehicle, including frame, running mechanism, brake system. The frame is provided with suspension, the running mechanism includes wheel, the wheel is installed in the suspension, the brake system includes brake disc, caliper body, brake caliper, motor and guard plate, the brake disc is opposite fixed with the wheel, the caliper body is installed in the suspension, the brake caliper is installed in the caliper body and opposite motion with the caliper body to clamp or loosen the brake disc, the motor drives the brake caliper relative motion with the caliper body, the guard plate is arranged in the caliper body, and the guard plate is at least partially located in the front side of the motor along the advancing direction of the all terrain vehicle.

[0005] In an exemplary embodiment of the utility model, the caliper body is provided with floating bolt, the guard plate is provided with through hole, the floating bolt penetrates the through hole to fix the guard plate with the caliper body.

[0006] In an exemplary embodiment of the utility model, the projection of the guard plate along the advancing direction of the all terrain vehicle covers the projection of the motor along the advancing direction of the all terrain vehicle.

[0007] In an exemplary embodiment of the utility model, the guard plate is arc-shaped guard plate, and the guard plate is provided with first reinforcing part extending along the circumference of the guard plate.

[0008] In an exemplary embodiment of the utility model, the guard plate includes: connecting plate, the connecting plate is opposite fixed with the caliper body, and shielding plate is fixed with the end of the connecting plate and extends to the direction of the motor.

[0009] In an exemplary embodiment of the utility model, the connecting plate is provided with second reinforcing part at the connection with the shielding plate.

[0010] In an exemplary embodiment of the utility model, the end of the shielding plate away from the connecting plate is provided with a avoiding structure, the avoiding structure is inclined to the middle part of the shielding plate from the connecting plate direction, and the inclination angle of the avoiding structure is greater than or equal to 30 DEG.

[0011] In an exemplary embodiment of the utility model, the shielding plate is an arc-shaped plate, and the angle of the shielding plate is 90 DEG to 110 DEG.

[0012] In an exemplary embodiment of the utility model, the brake caliper comprises: a service brake caliper, the service brake caliper is connected with a service brake oil pipe;A parking brake caliper, the motor is connected with the parking brake caliper;The guard plate is provided with a avoiding hole, and the service brake oil pipe penetrates the avoiding hole.

[0013] In an exemplary embodiment of the utility model, the all-terrain vehicle comprises a parking brake controller, which is electrically connected with the motor;A parking brake switch is electrically connected with the parking brake controller;At least two wheel speed sensors are configured to detect the speed of the left and right wheels;When the parking brake switch is opened, the parking brake controller controls the movement of the parking brake caliper according to the speed of the left and right wheels measured by the wheel speed sensor.

[0014] In combination with the prior art, the utility model has the beneficial effects that:

[0015] The existing all-terrain vehicle parking brake usually uses a hand brake to drive a cable to realize, and the operation is inconvenient and the mechanical efficiency is low. The brake system of the application comprises a caliper body, a brake caliper and a motor, the brake caliper is driven by the motor to move relative to the caliper body, so that the brake caliper clamps or releases the brake disc, thereby realizing braking and releasing. The brake caliper is driven by the motor, and the motor can control the clamping force of the brake caliper on the brake disc, thereby adjusting the braking effect of the brake system to improve the stability of the vehicle during braking.

[0016] The brake system of the application further comprises a guard plate, which is located at least partially on the front side of the motor in the forward direction of the all-terrain vehicle. The all-terrain vehicle has various driving scenarios, and the motor is exposed outside the wheel and is easily impacted by ground protrusions, flying stones, debris and the like, which can easily cause damage to the motor and affect the service life of the motor. The guard plate of the application is located on the front side of the motor, and the guard plate can effectively resist the impact of protrusions, flying stones, debris and the like, thereby protecting the motor and reducing the risk of damage to the motor, thereby improving the service life of the motor. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other embodiments can also be obtained from these drawings without creative labor.

[0018] Figure 1 An example all-terrain vehicle schematic diagram of the present application;

[0019] Figure 2 An example part structure schematic diagram of the present application at the vehicle wheel;

[0020] Figure 3 An example part structure schematic diagram of the present application at the braking system;

[0021] Figure 4 Another angle example part structure schematic diagram of the present application at the braking system;

[0022] Figure 5 An example schematic diagram of the present application at the brake caliper and the caliper body;

[0023] Figure 6 Another angle example schematic diagram of the present application at the brake caliper and the caliper body;

[0024] Figure 7 Another angle example schematic diagram of the present application at the brake caliper and the caliper body;

[0025] Figure 8 An example schematic diagram of the present application at the guard plate.

[0026] Element number explanation:

[0027] 100, frame; 110, suspension;

[0028] 200, travel mechanism; 210, wheel; 211, hub;

[0029] 300, braking system; 310, brake disc; 320, caliper body; 321, floating bolt; 330, brake caliper; 331, vehicle brake caliper; 332, parking brake caliper; 340, motor; 350, guard plate; 351, through hole; 352, first reinforcing part; 353, connecting plate; 354, shielding plate; 355, second reinforcing part; 356, avoiding structure; 357, avoiding hole; 360, wheel speed sensor; 370, vehicle brake oil pipe. DETAILED DESCRIPTION

[0030] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0031] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0032] It should be noted that the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity of description and are not intended to limit the scope of implementation of this utility model. Any changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0033] The braking system of an all-terrain vehicle transmission achieves braking of the vehicle mechanically. The braking system includes pedals, winding wheels, cables, force-combining mechanisms, etc. The mechanical structure is cumbersome and inefficient. In emergency situations, it may lead to untimely braking or brake failure, resulting in risks such as loss of vehicle control, skidding, or overturning.

[0034] In view of this, the present invention provides an all-terrain vehicle, the braking system of which can improve braking efficiency and reduce the risk of vehicle loss of control and skidding due to braking problems in special circumstances.

[0035] Please see Figures 1 to 8The all-terrain vehicle comprises a frame 100, a running mechanism 200 and a braking system 300. The frame 100 is provided with a suspension 110, which can connect the frame 100 and the wheels 210 and transmit the force and torque between the wheels 210 and the frame 100, so that the all-terrain vehicle can keep the normal trajectory of the wheels 210 when driving on uneven road surface, alleviate the impact load caused by uneven road surface and improve the stability of the vehicle. The running mechanism 200 comprises the wheels 210, which are installed on the suspension 110. The braking system 300 comprises a brake disc 310, a caliper body 320, a brake caliper 330, a motor 340 and a guard plate 350. The brake disc 310 is fixed opposite to the wheels 210. The caliper body 320 is installed on the suspension 110. The brake caliper 330 is installed on the caliper body 320 and moves opposite to the caliper body 320 to clamp or release the brake disc 310. The motor 340 drives the brake caliper 330 to move opposite to the caliper body 320. The guard plate 350 is arranged on the caliper body 320 and at least partially located on the front side of the motor 340 along the advancing direction of the all-terrain vehicle.

[0036] The motor 340 drives the brake caliper 330 to move opposite to the caliper body 320, so as to clamp or release the brake disc 310. Compared with the transmission mode of the transmission cable, the motor 340 can act more quickly and conveniently, effectively improve the braking efficiency, ensure the braking effect and solve the problem that the vehicle cannot be braked in time in an emergency. The motor 340 can also control the movement of the brake caliper 330 more conveniently, so as to control the clamping force between the brake caliper 330 and the brake disc 310 and adjust the braking effect. For example, the movement of the left and right brake calipers 330 can be adjusted according to the wheel speeds of the left and right wheels 210, so as to reduce the risk of vehicle out-of-control and side-slip caused by different wheel speeds of the left and right wheels 210.

[0037] The all-terrain vehicle has various driving scenes and is often driven on uneven road surface. The motor 340 is exposed outside the wheels 210 and is easily impacted by ground protrusions, flying stones and sundries, which can cause damage to the motor 340 and affect the service life of the motor 340. The guard plate 350 of the utility model is at least partially located on the front side of the motor 340. During the advancing process of the all-terrain vehicle, the guard plate 350 contacts the ground protrusions, flying stones and sundries earlier than the motor 340, so that the guard plate 350 can resist the impact and protect the motor 340, reduce the risk of damage to the motor 340, improve the service life of the motor 340 and reduce the probability of braking failure of the all-terrain vehicle.

[0038] The traveling mechanism 200 of the all-terrain vehicle further comprises a driving mechanism, which can be an engine, a driving motor, or a combination of the engine and the driving motor. For example, when the driving mechanism of the all-terrain vehicle is an engine, the all-terrain vehicle is further provided with a fuel tank to provide fuel for the engine; when the driving mechanism of the all-terrain vehicle is a driving motor, the all-terrain vehicle is further provided with a battery to provide power for the driving motor; when the driving mechanism of the all-terrain vehicle is a combination of the engine and the driving motor, the all-terrain vehicle needs to be provided with an energy storage battery and a fuel tank to provide fuel for the engine and the driving motor, respectively.

[0039] Of course, the driving mechanism of the all-terrain vehicle can also be in other forms, such as a hydrogen engine, to drive the all-terrain vehicle.

[0040] The traveling mechanism 200 of the all-terrain vehicle further comprises a transmission mechanism, which transmits mechanical energy of the driving mechanism to the wheels 210 to drive the wheels 210. The transmission mechanism can have multiple options. For example, when the driving mechanism is an engine, the transmission mechanism comprises a transmission structure such as a gearbox; when the driving mechanism is a driving motor, the driving motor can be arranged in a front drive, a rear drive, or a hub 211, and the transmission mechanism is selected according to the arrangement of the driving motor to achieve the transmission between the driving motor and the wheels 210.

[0041] Please refer to Figure 5 In an embodiment, the caliper body 320 is provided with a floating bolt 321. The floating bolt 321 is provided with a special structure, so that the brake caliper 330 moves axially along the guide device during braking. The floating function enables the brake caliper 330 to be centered on the brake disc 310, to ensure that the pressure distribution between the brake caliper 330 and the brake disc 310 is uniform, which helps to improve the braking effect and reduce the unevenness of the braking force. In the long-term use process, the brake pad on the brake caliper 330 will be worn out, so that the thickness of the brake pad will gradually decrease. The floating bolt 321 can automatically adjust the position of the brake caliper 330 to compensate for the change in the thickness of the brake pad and maintain the appropriate gap between the brake pad and the brake disc 310. The guard plate 350 is provided with a through hole 351, and the floating bolt 321 penetrates the through hole 351 to fix the guard plate 350 and the caliper body 320. The through hole 351 provided on the guard plate 350 can be used with the floating bolt 321 provided on the caliper body 320 to relatively fix the guard plate 350 and the caliper body 320. The existing structure is used for installing the guard plate 350, which is convenient to disassemble and assemble, has high matching performance, and facilitates the wide application of the guard plate 350.

[0042] In an embodiment, the projection of the guard plate 350 along the advancing direction of the all-terrain vehicle covers the projection of the motor 340 along the advancing direction of the all-terrain vehicle, effectively resisting impact from the front of the motor 340, protecting the motor 340, and improving the protection effect.

[0043] In another embodiment, part of the motor 340 extends into the hub 211 of the wheel 210, and the hub 211 protects the motor 340 extending into the hub 211. The projection of the guard plate 350 along the advancing direction of the all-terrain vehicle covers the projection of the motor 340 outside the hub 211 along the advancing direction of the all-terrain vehicle, so as to utilize the protection of the hub 211 to the motor 340, reduce the area of the guard plate 350, avoid duplication, and reduce the risk of interference between the guard plate 350 and the hub 211.

[0044] Of course, as an optional mode, the projection of the guard plate 350 along the advancing direction of the all-terrain vehicle can also cover part of the projection of the motor 340 along the advancing direction of the all-terrain vehicle, so that there is a gap between the guard plate 350 and the hub 211, which not only ensures the protection effect of the guard plate 350 against impact of protrusions, flying stones, etc., but also effectively avoids interference between the guard plate 350 and the hub 211.

[0045] Please refer to Figure 8 In an embodiment, the guard plate 350 is an arc-shaped guard plate 350, which is beneficial to installation by utilizing the existing structure of the caliper body 320, can form protection to the motor 340, reduces space occupation, and avoids interference with the hub 211 and other structures. Compared with a straight plate, the arc-shaped guard plate 350 can disperse impact force, thereby improving the protection effect.

[0046] In an embodiment, the angle of the arc-shaped guard plate 350 is 90°-110°, and the angle can be any value between 90° and 110°, such as 90°, 100°, 105°, 110°, etc. Preferably, the angle of the arc-shaped guard plate 350 is 105°, which effectively guarantees the protection effect of the guard plate 350 to the motor 340 and avoids the problem that the guard plate 350 is too large to easily interfere with other structures.

[0047] Please refer to Figure 8 In an embodiment, the guard plate 350 is provided with a first reinforcing portion 352 extending in the circumferential direction of the guard plate 350. The circumferential direction of the guard plate 350 has a large span, and is therefore more likely to deform in a collision. The first reinforcing portion 352 can improve the strength of the guard plate 350 and reduce the risk of deformation of the guard plate 350.

[0048] Please refer to Figure 8In an embodiment, the first reinforcing portion 352 is a protrusion penetrating the guard plate 350 along the circumferential direction of the guard plate 350 to improve the strength of the guard plate 350. The protrusion can be one or more. If the protrusion is more than one, the more than one protrusions are arranged along the axial direction of the guard plate 350 to improve the strength of each region of the guard plate 350.

[0049] The forming method of the guard plate 350 is preferably cold heading forming to ensure the structural strength of the guard plate 350 and ensure the protection effect. Of course, the forming method of the guard plate 350 can also be other existing processing methods, as long as the protection effect on the motor 340 is met.

[0050] Please refer to Figure 8 In an embodiment, the guard plate 350 includes a connecting plate 353 and a shielding plate 354. The connecting plate 353 is fixed opposite to the caliper body 320, and the shielding plate 354 is fixed to the end of the connecting plate 353 and extends towards the motor 340. The connecting plate 353 connects the shielding plate 354 and the caliper body 320, so that the shielding plate 354 is away from the caliper body 320 and the motor 340, ensuring a certain gap between the shielding plate 354 and the motor 340, reducing the risk of the shielding plate 354 colliding with the motor 340 due to impact, and ensuring the protection effect of the shielding plate 354 on the motor 340. The shielding plate 354 extends away from the caliper body 320 and at least partially shields and protects the motor 340.

[0051] The connecting plate 353 and the shielding plate 354 are perpendicular or substantially perpendicular to each other, so that the shielding plate 354 is parallel or substantially parallel to the axial direction of the hub 211, thereby reducing the risk of interference between the shielding plate 354 and the hub 211 or other components.

[0052] Please refer to Figure 8 In an embodiment, a second reinforcing portion 355 is arranged at the connection between the connecting plate 353 and the shielding plate 354. When the shielding plate 354 collides, the connection between the connecting plate 353 and the shielding plate 354 is prone to deformation, which may cause relative rotation between the shielding plate 354 and the connecting plate 353, collision between the shielding plate 354 and the motor 340, and other problems. By arranging the second reinforcing portion 355, the strength between the connecting plate 353 and the shielding plate 354 is improved, and the protection effect of the shielding plate 354 is improved.

[0053] In an embodiment, the second reinforcing portion 355 is a concave fold arranged at the connection between the connecting plate 353 and the shielding plate 354. The structure after the concave fold can better bear stress, thereby improving the strength of the connection between the connecting plate 353 and the shielding plate 354.

[0054] In another embodiment, the second reinforcing portion 355 is a reinforcing rib arranged at the connecting portion of the connecting plate 353 and the shielding plate 354, so as to improve the strength of the connecting portion of the connecting plate 353 and the shielding plate 354.

[0055] Of course, as some optional manners, the second reinforcing portion 355 can also be other structures arranged at the connecting portion of the connecting plate 353 and the shielding plate 354, so as to improve the strength of the connecting portion of the connecting plate 353 and the shielding plate 354.

[0056] Please refer to Figure 5 and Figure 8 In an embodiment, the end portion of the shielding plate 354 away from the connecting plate 353 is provided with a avoiding structure 356, and the avoiding structure 356 is inclined from the shielding plate 354 to the middle portion of the shielding plate 354. The shielding plate 354 extends from the caliper body 320 to the suspension 110, and the upper and lower suspensions 110 will move relatively during the movement of the all-terrain vehicle, so as to relieve the shock of the all-terrain vehicle and improve the stability of the all-terrain vehicle. By arranging the avoiding structure 356, the risk of collision between the suspension 110 and the shielding plate 354 can be reduced when the suspension 110 moves, and the risk of damage to the shielding plate 354 or the suspension 110 can be reduced. When the suspension 110 moves, it rotates relative to the mounting position of the wheel 210. The inclined arrangement of the avoiding structure 356 can effectively guarantee the avoiding effect, and can also reduce the area of the avoiding structure 356 on the shielding plate 354, so as to guarantee the shielding effect of the shielding plate 354.

[0057] In an embodiment, the inclination angle of the avoiding structure 356 is greater than or equal to 30°, so as to effectively guarantee the avoiding effect of the shielding plate 354 and avoid the collision between the shielding plate 354 and the suspension 110.

[0058] Please refer to Figure 8 In an embodiment, the shielding plate 354 is an arc-shaped plate, which can not only shield the motor 340, but also reduce the space occupation and avoid interference with the hub 211 and other structures. Compared with a straight plate, the arc-shaped plate can disperse the impact force, so as to improve the shielding effect of the shielding plate 354. The angle of the shielding plate 354 is 90°-110°, and the angle can be any value between 90° and 110°, such as 90°, 100°, 105°, 110°, etc.

[0059] Please refer to Figure 5In an embodiment, the brake caliper 330 includes a service brake caliper 331 and a parking brake caliper 332. The service brake caliper 331 is connected with a service brake oil pipe 370, and the service brake caliper 331 is controlled to move by a brake pedal, that is, when the brake pedal is stepped on, the service brake caliper 331 clamps the brake disc 310 to brake. The parking brake caliper 332 is connected with the motor 340, and the movement of the parking brake caliper 332 is driven by the motor 340 to brake or park. The guard plate 350 is provided with a avoiding hole 357, and the service brake oil pipe 370 penetrates the avoiding hole 357 to supply oil to the service brake caliper 331.

[0060] In an embodiment, the all-terrain vehicle includes a parking brake controller electrically connected with the motor 340, a parking brake switch electrically connected with the parking brake controller, and at least two wheel speed sensors 360 configured to detect the speeds of the left and right wheels 210. When the parking brake switch is turned on, the parking brake controller controls the movement of the parking brake caliper 332 according to the speeds of the left and right wheels 210 measured by the wheel speed sensors 360. In the case of service brake failure, if the parking brake is used in the transmission brake system 300, it is easy to cause the imbalance of the left and right wheels 210 to slide and overturn. The parking brake controller of the utility model controls the movement of the parking brake caliper 332 according to the speeds of the left and right wheels 210, and then reasonably outputs the braking force to participate in auxiliary braking, improves the braking balance of the left and right wheels 210, and solves the problems that the existing brake system 300 cannot effectively brake or the imbalance of the left and right wheels 210 causes the vehicle to slide and overturn in the case of service brake failure, and effectively guarantees the stability of the vehicle when the parking brake participates in braking.

[0061] In order to realize the requirement of parking on a slope, the traditional parking brake needs to consider the radius of the winding wheel, the ratio of the hand brake or foot lever, the mechanical efficiency of the cable, and the like. In order to ensure the safety of braking, the arrangement of parts and the running direction of the cable also need to be considered. The mechanical structure is complex, and the mechanical efficiency is low. The brake system 300 of the utility model can obtain the angle of the slope surface on which the vehicle is parked through the parking brake controller, so that the clamping force output by the motor 340 can be controlled according to the actual parking angle, the problem of frequently sliding down the slope in the traditional parking on a slope is effectively avoided, and the safety and reliability of the all-terrain vehicle are improved.

[0062] The braking system 300 of the all-terrain vehicle effectively realizes the combination of driving braking and parking braking, when the driving braking fails, the parking braking can reduce the risk of side sliding and overturning caused by the imbalance of braking of the left and right wheels 210; the braking system 300 can output clamping force according to the vehicle parking slope angle, reduce the risk of sliding on the slope, improve the safety and reliability; the guard plate 350 protects the motor 340, effectively reduces the damage risk of the motor 340, prolongs the service life of the motor 340, ensures the driving safety, and saves the after-sales maintenance cost. Therefore, the utility model effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.

[0063] The above embodiment only exemplarily illustrates the principle and effect of the utility model, and is not used to limit the utility model. Any person skilled in the art can modify or change the above embodiment without departing from the spirit and category of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. An all-terrain vehicle characterized by, The all-terrain vehicle comprises: a frame, wherein a suspension is arranged on the frame; a traveling mechanism, wherein a wheel is arranged on the traveling mechanism; a brake system, wherein the brake system comprises: a brake disc, wherein the brake disc is fixed opposite to the wheel; a caliper body, wherein the caliper body is arranged on the suspension; a brake caliper, wherein the brake caliper is arranged on the caliper body and moves opposite to the caliper body to clamp or release the brake disc; a motor, wherein the motor drives the brake caliper to move opposite to the caliper body; a guard plate, wherein the guard plate is arranged on the caliper body and at least partially located in front of the motor along the moving direction of the all-terrain vehicle.

2. The all-terrain vehicle according to claim 1, wherein: a floating bolt is arranged on the caliper body, and a through hole is arranged on the guard plate, wherein the floating bolt penetrates through the through hole to fix the guard plate to the caliper body.

3. The all-terrain vehicle according to claim 1, wherein: a projection of the guard plate along the moving direction of the all-terrain vehicle covers a projection of the motor along the moving direction of the all-terrain vehicle.

4. The all-terrain vehicle of claim 1, characterized by: the guard plate is an arc-shaped guard plate, a first reinforcing part is arranged on the guard plate and extends along the circumferential direction of the guard plate.

5. The all-terrain vehicle of claim 1, characterized by: the guard plate comprises: a connecting plate, wherein the connecting plate is fixed opposite to the caliper body; a shielding plate, wherein the shielding plate is fixed to the end of the connecting plate and extends to the motor.

6. The all-terrain vehicle according to claim 5, wherein: a second reinforcing part is arranged at the connection between the connecting plate and the shielding plate.

7. The all-terrain vehicle according to claim 5, wherein: an avoiding structure is arranged at the end of the shielding plate away from the connecting plate, wherein the avoiding structure is inclined from the end of the shielding plate to the middle of the shielding plate along the direction of the connecting plate, and the inclination angle of the avoiding structure is greater than or equal to 30°.

8. The all-terrain vehicle according to claim 5, wherein: the shielding plate is an arc-shaped plate, and the angle of the shielding plate is 90°-110°.

9. The all-terrain vehicle of claim 1, wherein, the brake caliper comprises: a service brake caliper, wherein a service brake oil pipe is connected to the service brake caliper; a parking brake caliper, wherein the motor is connected to the parking brake caliper; an avoiding hole is arranged on the guard plate, wherein the service brake oil pipe penetrates through the avoiding hole.

10. The all-terrain vehicle of claim 9, characterized in that, The all-terrain vehicle comprises: a parking brake controller, wherein the parking brake controller is electrically connected to the motor; a parking brake switch, wherein the parking brake switch is electrically connected to the parking brake controller; at least two wheel speed sensors, wherein the wheel speed sensors are configured to detect the speed of the left and right wheels; wherein when the parking brake switch is turned on, the parking brake controller controls the movement of the parking brake caliper according to the speed of the left and right wheels measured by the wheel speed sensors.

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