All-terrain vehicle

Abstract

The all-terrain vehicle comprises a suspension system and a steering system, and the steering system comprises a steering handle, a steering pipe, a steering rocker arm, a steering ball pin and a steering pull rod; a transverse plane and a longitudinal plane are defined, the steering ball pin basically extends in the direction of a preset straight line, the orthographic projection of the preset straight line on the transverse plane is a first projection line, the orthographic projection of the preset straight line on the longitudinal plane is a second projection line, and the orthographic projection of the axis of the steering tube on the transverse plane is an axis first projection. The orthographic projection of the axis of the steering tube on the longitudinal plane is a second axis projection, and the rocker arm part is configured to be capable of being bent so that the included angle formed between the first projection line and the first axis projection can range from 5 degrees to 45 degrees, and the included angle formed between the second projection line and the second axis projection can range from 5 degrees to 45 degrees. By means of the arrangement, the swing stroke of the steering ball pin can be prolonged, and therefore the service life of the steering ball pin can be prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and in particular to an all-terrain vehicle. Background Art

[0002] An all-terrain vehicle is a multi-functional vehicle designed for various complex terrains. It has powerful off-road capabilities and stability, and can easily travel in complex environments such as mud, sand, snow, and rocks.

[0003] An all-terrain vehicle generally includes a frame, a body cover, a running system, a suspension system, a power assembly, and a steering system. Among them, the steering system usually includes a steering rocker arm, a steering ball joint, and a steering tie rod, and the steering rocker arm and the steering tie rod are connected by the steering ball joint.

[0004] In the prior art, when an all-terrain vehicle travels on rough terrain, the tire bounce amplitude of the all-terrain vehicle is too large, so that the swing of the steering ball joint inside the all-terrain vehicle will reach the maximum stroke of the steering ball joint, resulting in excessive swing of the steering ball joint, which exacerbates the wear of the steering ball joint and further reduces the service life of the steering ball joint. Summary of the Invention

[0005] In order to solve the deficiencies of the prior art, the purpose of the present application is to provide an all-terrain vehicle with a relatively long service life of the steering ball joint.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] An all-terrain vehicle, which includes a frame, a body cover, a running system, a suspension system, a power assembly, and a steering system. The body cover is supported by the frame; at least part of the running system is located below the frame; the suspension system connects the running system to the frame; at least part of the power assembly is disposed on the frame and is in transmission connection with the running system; the steering system includes a steering handle, a steering tube connected to the steering handle, a steering rocker arm connected to the steering tube, a steering ball joint, and a steering tie rod rotatably connected to the steering rocker arm through the steering ball joint; the steering rocker arm includes a connecting portion connected to the steering tube and a rocker portion rotatably connected to the steering ball joint. Define a transverse plane perpendicular to the length direction of the frame and a longitudinal plane perpendicular to the width direction of the frame. The steering ball joint extends substantially along a preset straight line direction. The positive projection of the preset straight line on the transverse plane is a first projection line, and the positive projection of the preset straight line on the longitudinal plane is a second projection line. The axis of the steering tube in the transverse plane is the first axis projection, and the axis of the steering tube in the longitudinal plane is the second axis projection. The rocker portion is configured to be bendable so that the acute angle formed between the first projection line and the first axis projection ranges from 5° to 45°, and the acute angle formed between the second projection line and the second axis projection ranges from 5° to 45°.

[0008] Further, the range of the acute angle formed between the first projection line and the first projection of the axis is 15° to 30°, and the range of the acute angle formed between the second projection line and the second projection of the axis is 15° to 30°.

[0009] Further, a reference plane perpendicular to the height direction of the frame is defined, and the rocker arm portion extends substantially along a preset plane. The range of the included angle formed between the preset plane and the reference plane is 5° to 45°.

[0010] Further, the range of the included angle formed between the preset plane and the reference plane is 15° to 30°.

[0011] Further, the steering system further includes a steering assist mechanism. The steering assist mechanism is connected to the steering tube and is configured to be able to assist the steering tube in turning. A first limiting structure is provided on the steering tube and is configured to be able to cooperate with the frame to limit the rotation angle of the steering tube; a second limiting structure is provided on the steering rocker arm and is configured to be able to cooperate with the frame to limit the rotation angle of the steering rocker arm.

[0012] Further, the first limiting structure is located between the steering assist mechanism and the steering handle. The first limiting structure at least forms a limiting protrusion to limit the rotation angle of the steering tube.

[0013] Further, the frame includes a rotating fixing member through which the steering tube passes. The steering tube is rotatably connected to the rotating fixing member. A cooperating limiting portion is provided on the rotating fixing member, and the second limiting structure can cooperate with the cooperating limiting portion to limit the rotation angle of the steering rocker arm.

[0014] Further, the steering system includes a mounting seat for connecting the steering tube and the steering handle. The mounting seat includes a lower mounting wall, a left mounting wall and a right mounting wall oppositely arranged along the width direction of the frame. The lower mounting wall is provided with a first channel extending along the height direction of the frame, and the left mounting wall or the right mounting wall is provided with a second channel extending along the width direction of the frame. The first channel and the second channel are communicated, and both the first channel and the second channel are configured to be able to allow a wire harness and / or a pipeline to pass through.

[0015] Further, both the left mounting wall and the right mounting wall are provided with second channels extending along the width direction of the frame, and the two second channels are communicated. Further, the mounting seat surrounds to form a mounting space for accommodating a wire harness and / or a pipeline. At least a part of the first channel and the second channel is located in the accommodating space. The steering system further includes a protection plate, and the protection plate covers the mounting space and is fixedly connected to the mounting seat.

[0016] The steering system of the above all-terrain vehicle includes a steering handle, a steering tube, a steering rocker arm, a steering ball joint, and a steering tie rod; the steering ball joint extends substantially along a preset straight line. The positive projection of the preset straight line on the transverse plane is the first projection line, and the positive projection of the preset straight line on the longitudinal plane is the second projection line. The positive projection of the axis of the steering tube on the transverse plane is the first axis projection, and the positive projection of the axis of the steering tube on the longitudinal plane is the second axis projection. The rocker arm portion is configured to be bendable so that the included angle between the first projection line and the first axis projection ranges from 5° to 45°, and the included angle between the second projection line and the second axis projection ranges from 5° to 45°. After bending the rocker arm portion, the swing stroke of the steering ball joint can be increased, which is beneficial to improving the service life of the steering ball joint. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the all-terrain vehicle provided by the embodiment of the present application.

[0018] Figure 2 It is a partial structural side view of the all-terrain vehicle provided by the embodiment of the present application.

[0019] Figure 3 It is a partial structural schematic diagram of the steering system of the all-terrain vehicle provided by the embodiment of the present application.

[0020] Figure 4 It is a schematic structural diagram of the mounting seat of the all-terrain vehicle provided by the embodiment of the present application.

[0021] Figure 5 It is a partial structural cross-sectional view of the steering system of the all-terrain vehicle provided by the embodiment of the present application.

[0022] Figure 6 It is a rear view of the steering system of the all-terrain vehicle provided by the embodiment of the present application.

[0023] Figure 7 It is a partial structural rear view of the steering system of the all-terrain vehicle provided by the embodiment of the present application.

[0024] Figure 8 It is a partial structural side cross-sectional view of the steering system of the all-terrain vehicle provided by the embodiment of the present application. Detailed Description of the Embodiment

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the specific embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0026] As Figure 1 and Figure 2As shown in the figure, the present application provides an all-terrain vehicle 100, which includes a frame 11, a body cover 12, a running system 13, a suspension system 14, a power assembly 15, a transmission assembly 16, a fuel assembly 17, a seat assembly 19, and an electrical component 22.

[0027] To clearly illustrate the technical solution of the present application, the front, rear, left, right, up, and down directions are also defined as shown in Figure 1 the figure. In the present application, the length direction of the frame 11 refers to the Figure 1 front and rear directions in Figure 1 the figure, the width direction of the frame 11 refers to the Figure 1 left and right directions in

[0028] the figure, and the height direction of the frame 11 refers to the

[0029] up and down directions in Figure 3 and Figure 4 the figure. Among them, the frame 11 serves as the basic framework of the all-terrain vehicle 100 and is used to support the body cover 12, the running system 13, the suspension system 14, the power assembly 15, the transmission assembly 16, the fuel assembly 17, the seat assembly 19, and the electrical component 22. The body cover 12 is at least partially located on the frame 11 and is connected to the frame 11 so that the body cover 12 can protect the components inside the all-terrain vehicle 100. The running system 13 is at least partially located below the frame 11, and the suspension system 14 connects the running system 13 to the frame 11. The power assembly 15 is drivingly connected to the running system 13. Specifically, the transmission assembly 16 drivingly connects the power assembly 15 to the running system 13. The fuel assembly 17 includes a fuel tank 171, and the fuel tank 171 is used to supply energy to the power assembly 15. Specifically, the fuel tank 171 is used to deliver fuel to the power assembly 15. The electrical component 22 is supported by the frame 11, the electrical component 22 is supported by the body cover 12 or the frame 11, and the electrical component 22 is used to display the driving data of the all-terrain vehicle 100, control the operation of the all-terrain vehicle, etc. The seat assembly 19 is supported by the frame 11, and the seat assembly 19 is used to support the driver and / or passengers.

[0029] As shown in Figure 3 and Figure 4 the figure, as an implementation manner, the all-terrain vehicle 100 includes a steering system 20. The steering system 20 includes a steering handle 201, a steering tube 202, and a mounting seat 203.

[0030] Among them, the mounting seat 203 is used to connect the steering tube 202 and the steering handle 201, and the mounting seat 203 is located above the steering tube 202. The mounting seat 203 includes a lower mounting wall 2031, and a first passage 2031a extending in the height direction of the vehicle frame 11 is formed in the lower mounting wall 2031. The mounting seat 203 further includes a left mounting wall 2032 and a right mounting wall 2035 opposite to each other in the width direction of the vehicle frame 11. A second passage 2032a extending in the width direction of the vehicle frame 11 is formed in the left mounting wall 2032 and / or the right mounting wall 2035. The first passage 2031a and the second passage 2032a communicate with each other, and both the first passage 2031a and the second passage 2032a are configured to allow wire harnesses and / or pipelines to pass through.

[0031] With such a setting, it is beneficial to lay wire harnesses and / or pipelines at the mounting seat 203, thereby avoiding additionally installing components for wire harnesses and / or pipelines to pass through at the mounting seat 203, which is beneficial to simplifying the structure at the mounting seat 203, and further beneficial to reducing the overall cost of the all-terrain vehicle 100. Moreover, through the above setting, the structural compactness of the wire harnesses and / or pipelines at the mounting seat 203 can also be improved, thereby avoiding the wire harnesses and / or pipelines from being scattered and interfering with the driver's driving of the all-terrain vehicle 100, and further beneficial to improving the driving safety of the all-terrain vehicle 100. In addition, it can also avoid the wire harnesses and / or pipelines from being scattered and causing the wire harnesses and / or pipelines to be exposed and worn, thereby being beneficial to improving the service life of the wire harnesses and / or pipelines.

[0032] As an implementation manner, second passages 2032a extending in the width direction of the vehicle frame 11 are formed in both the left mounting wall 2032 and / or the right mounting wall 2035, and the two second passages 2032a communicate with each other. With such a setting, the wire harnesses and / or pipelines laid in the mounting seat 203 can be laid from the two second passages 2032a to both sides of the steering handle 201 in the width direction of the vehicle frame 11, which is beneficial to improving the convenience of laying wire harnesses and / or pipelines at the mounting seat 203.

[0033] As Figure 4 shown, as an implementation manner, a mounting space 2033 for accommodating wire harnesses and / or pipelines is formed around the mounting seat 203, and at least part of the first passage 2031a and the second passage 2032a is located in the accommodating space 2033. With such a setting, during the assembly process of the wire harnesses and / or pipelines, the mounting space 2033 can provide an accommodating space for the too-long wire harnesses and / or pipelines, thereby avoiding the wire harnesses and / or pipelines from being too long to be accommodated and scattered, and further being able to improve the structural compactness and neatness of the wire harnesses and / or pipelines at the mounting seat 203.

[0034] In addition, by at least partially inverting the mounting seat 203 to form a mounting space 2033, it is beneficial to reduce the weight of the mounting seat 203, thereby facilitating the weight reduction of the steering system 20, and further facilitating the driver to drive the steering system 20 to control the steering of the all-terrain vehicle 100.

[0035] In this embodiment, the steering system 20 further includes a protection plate 204 (refer to Figure 3 ), and the protection plate 204 covers the mounting space 2033 and is fixedly connected to the mounting seat 203. With such a setting, the protection plate 204 can limit the wiring harness and / or pipeline in the mounting space 2033, thereby preventing the wiring harness and / or pipeline from detaching from the mounting space 2033, and further facilitating the improvement of the layout stability of the wiring harness and / or pipeline in the mounting seat 203.

[0036] Secondly, the protection plate 204 can protect the wiring harness and / or pipeline in the mounting space 2033. Along the length direction of the vehicle frame 11, the protection plate 204 is located in front of the mounting space 2033. Thus, during the driving of the all-terrain vehicle 100, the protection plate 204 can shield the mounting space 2033 to prevent flying stones and gravel from wearing the wiring harness and / or pipeline, and further facilitate the improvement of the service life of the wiring harness and / or pipeline.

[0037] As Figure 4 shown, as an embodiment, the mounting seat 203 is provided with a weight reduction hole 2034 that generally penetrates the mounting seat 203 along the length direction of the vehicle frame 11. With such a setting, the weight reduction hole 2034 can further reduce the weight of the mounting seat 203, thereby further reducing the overall weight of the steering system 20 and realizing the weight reduction of the steering system 20.

[0038] Specifically, the weight reduction hole 2034 communicates with the mounting space 2033. With such a setting, the weight reduction hole 2034 can expand the volume of the mounting space 2033, so that the mounting space 2033 can accommodate more wiring harnesses and / or pipelines.

[0039] As an implementation manner, the second channel 2032a is configured to be able to reduce the weight of the mounting seat 203. Specifically, the ratio range of the height H3 of the second channel 2032a in the height direction of the vehicle frame 11 to the height H4 of the mounting seat 203 in the height direction of the vehicle frame 11 is 0.4 to 0.62. Specifically, the ratio range of the height H3 of the second channel 2032a in the height direction of the vehicle frame 11 to the height H4 of the mounting seat 203 in the height direction of the vehicle frame 11 is 0.45 to 0.57. More specifically, the ratio of the height H3 of the second channel 2032a in the height direction of the vehicle frame 11 to the height H4 of the mounting seat 203 in the height direction of the vehicle frame 11 is 0.51. With such a setting, by increasing the height H3 of the second channel 2032a in the height direction of the vehicle frame 11, the weight of the mounting seat 203 can be further reduced, which is beneficial for the driver to control the steering system 20. Secondly, it is possible to avoid the second channel 2032a being too large in the height direction H3 along the vehicle frame 11, so as to avoid the second channel 2032a being too large and reducing the structural strength of the mounting seat 203, which is beneficial to reducing the overall counterweight of the mounting seat 203 on the premise of meeting the structural strength of the mounting seat 203. In addition, it is also possible to avoid the height H3 of the second channel 2032a in the height direction along the vehicle frame 11 being too small, resulting in the weight of the mounting seat 203 being too large, which is beneficial to realizing the lightweight of the steering system 20.

[0040] As Figure 5 shown, as an implementation manner, the body covering 12 includes an instrument mounting cover 1204 for mounting an instrument. The instrument mounting cover 1204 is supported by the vehicle frame 11, and the mounting seat 203 is at least partially located within the instrument mounting cover 1204. With such a setting, the mounting seat 203 can be protected through the instrument mounting cover 1204, so as to avoid the mounting seat 203 from being worn and eroded by flying stones and gravel, which is beneficial for protecting the wiring harness and / or pipeline inside the mounting seat 203. In addition, it is also possible to avoid adding additional components for protecting the mounting seat 203 on the all-terrain vehicle 100, which is beneficial to simplifying the overall structure of the all-terrain vehicle 100 and further reducing the overall cost of the all-terrain vehicle 100.

[0041] As Figure 5 and Figure 6 shown, as an implementation manner, the steering system 20 includes a steering rocker arm 205, a steering ball joint 206, and a steering tie rod 207. Among them, the steering rocker arm 205 is connected to the steering tube 202, and the steering tie rod 207 is rotatably connected to the steering rocker arm 205 through the steering ball joint 206. Specifically, the steering rocker arm 205 includes a connecting portion 2051 and a rocker portion 2052. The connecting portion 2051 is connected to the steering tube 202, and the rocker portion 2052 is rotatably connected to the steering ball joint 206.

[0042] In some embodiments, the connecting portion 2051 and the rocker arm portion 2052 are integrally formed, which is beneficial to improving the connection stability between the steering tube 202 and the steering ball joint 206 through the steering rocker 205.

[0043] More specifically, as Figure 7 shown, a transverse plane 108 perpendicular to the length direction of the vehicle frame 11 and a longitudinal plane 109 perpendicular to the width direction of the vehicle frame 11 are defined. The steering ball joint 206 extends substantially along the direction of a preset straight line 10a. The positive projection of the preset straight line 10a on the transverse plane 108 is a first projection line, the positive projection of the preset straight line 10a on the longitudinal plane 109 is a second projection line, the positive projection of the axis of the steering tube 202 on the transverse plane 108 is a first axis projection of the axis, and the positive projection of the axis of the steering tube 202 on the longitudinal plane 109 is a second projection of the axis.

[0044] In the present application, one end of the steering tie rod 207 away from the steering ball joint 206 is connected to the traveling system 13. When the all-terrain vehicle 100 travels over rough terrain, the traveling system 13 will bounce according to the terrain. At this time, the traveling system 13 drives the steering ball joint 206 to swing through the steering tie rod 207.

[0045] In this embodiment, the rocker arm portion 2052 is configured to be bendable so that the range of the acute angle β formed between the first projection line and the first axis projection of the axis is 5° to 45°, and the range of the acute angle Ω formed between the second projection line and the second projection of the axis is 5° to 45°. Specifically, the rocker arm portion 2052 is configured to be bendable so that the range of the acute angle β formed between the first projection line and the first axis projection of the axis is 15° to 30°, and the range of the acute angle Ω formed between the second projection line and the second projection of the axis is 15° to 30°. With such a setting, the steering ball joint 206 can be inclined by bending the rocker arm portion 2052, so that a larger swing stroke can be provided for the steering ball joint 206, thereby avoiding the situation that the swing stroke of the steering ball joint 206 is too small due to the steering ball joint 206 being arranged along the height direction of the vehicle frame 11, and further avoiding the collision and wear of the steering ball joint 206 during the swing process due to the too small swing stroke of the steering ball joint 206, which is beneficial to improving the service life of the steering ball joint 206. Secondly, by increasing the swing stroke of the steering ball joint 206, it is beneficial for the traveling system 13 to bounce to a greater extent, and further beneficial for the all-terrain vehicle 100 to travel over more rough terrain, so as to be beneficial to improving the passability of the all-terrain vehicle 100.

[0046] It should be noted that the directions in which the steering ball pin 206 swings are defined as the first direction and the second direction, and the first direction and the second direction are opposite. Among them, the angle at which the steering ball pin 206 swings in the first direction is defined as 30°, and the angle at which the steering ball pin 206 swings in the second direction is defined as 30°. If the range of the acute angle β is not set within the above angle range, the installed steering ball pin 206 will deflect in the first direction or the second direction. Taking the example that the installed steering ball pin 206 deflects 16° in the first direction and the steering ball pin 206 needs to be able to rotate 14° in the first direction or the second direction, during the working process of the steering ball pin 206, the actual angular orientation of its rotation in the second direction is between 16° and 30°. At this time, the steering ball pin 206 will rotate within its limit rotation angle, which will cause wear of the steering ball pin 206 and thus reduce the service life of the steering ball pin 206. Secondly, if the angle at which the steering ball pin 206 needs to be able to rotate in the first direction or the second direction is greater than 14°, the installed steering ball pin 206 cannot meet the requirements. Therefore, setting the range of the acute angle β within the above angle range can increase the service life of the installed steering ball pin 206, and can enable the installed steering ball pin 206 to meet greater rotation requirements, thereby increasing the bounce stroke of the walking system 13.

[0047] It should be noted that the ranges of the acute angles β formed between the above first projection line and the first-axis projection of the axis, and the acute angle Ω formed between the second projection line and the second projection of the axis are both the angle ranges when the all-terrain vehicle 100 is in a stationary state.

[0048] As Figure 8 shown, as an implementation manner, a reference plane 10b perpendicular to the height direction of the vehicle frame 11 is defined, and the rocker arm portion 2052 extends substantially along a preset straight line 10c. The range of the acute angle Ψ formed between the preset straight line 10c and the reference plane 10b is 5° to 45°. Specifically, the range of the acute angle Ψ formed between the preset straight line 10c and the reference plane 10b is 15° to 30°. The beneficial effects of the above setting method are basically the same as those of the setting of the range of the acute angle β, and will not be elaborated here.

[0049] It should be noted that the range of the acute angle Ψ formed between the above preset straight line 10c and the reference plane 10b is the angle range when the all-terrain vehicle 100 is in a stationary state.

[0050] As Figure 6 and Figure 7As shown, as an implementation manner, the steering system 20 further includes a steering assist mechanism 208. The steering assist mechanism 208 is connected to the steering tube 202 and is configured to assist the steering tube 202 in turning. Specifically, a first limiting structure 2023 is provided on the steering tube 202, and the first limiting structure 2023 is configured to cooperate with the vehicle frame 11 to limit the rotation angle of the steering tube 202. A second limiting structure 2024 is provided on the steering rocker 205, and the second limiting structure 2024 is configured to cooperate with the vehicle frame 11 to limit the rotation angle of the steering rocker 205. Due to the existence of the steering assist mechanism 208, it may cause the steering tube 202 to continue to rotate after the steering rocker 205 is limited. Through the above settings, the steering limit of the first limiting structure 2023 can be used to prevent the steering angle of the steering assist mechanism 208 assisting the steering tube 202 from being greater than the actual maximum limiting angle of the steering tube 202, resulting in excessive rotation of the steering tube 202. Thus, it can be avoided that the wire harness, pipeline, and components connected to the steering tube 202 are excessively deflected due to the excessive rotation of the steering tube 202, which is beneficial to improving the service life of the wire harness, pipeline, and components connected to the steering tube 202.

[0051] It should be noted that the rotation angle of the steering tube 202 limited by the first limiting structure 2023 is the actual maximum limiting angle of the steering tube 202. In addition, the limiting angle of the second limiting structure 2024 for the steering tube 202 is the same as the limiting angle of the first limiting structure 2023 for the steering tube 202.

[0052] As an optional implementation manner, the first limiting structure 2023 is located between the steering assist mechanism 208 and the steering handle 201, and the first limiting structure 2023 at least forms a limiting protrusion 2023a to limit the rotation angle of the steering tube 202. With such a setting, the limiting protrusion 2023a can cooperate with the vehicle frame 11 for limiting, thereby limiting the rotation angle of the steering tube 202.

[0053] As an implementation manner, the vehicle frame 11 includes a rotating fixing member 112 through which the steering tube 202 passes, and the steering tube 202 is rotatably connected to the rotating fixing member 112. Specifically, a cooperating limiting portion 1121 is provided on the rotating fixing member 112, and the second limiting structure 2024 can cooperate with the cooperating limiting portion 1121 to limit the rotation angle of the steering rocker 205. In some embodiments, the second limiting structure 2024 can be a rocker portion 2052. The steering tube 202 drives the steering rocker 205 to rotate, and the rocker portion 2052 abuts against the limiting portion to limit the rotation angle of the steering tube 202. With such a setting, it is possible to avoid additionally installing a structure for limiting the rotation angle of the steering tube 202 on the steering tube 202, which is beneficial to simplifying the overall structure of the steering tube 202 and further beneficial to reducing the overall cost of the steering tube 202.

[0054] In addition, in the present embodiment, the rocker arm portion 2052 and the limit projection 2023a are respectively disposed at both ends of the power steering mechanism 208, so that the limiting effect on the steering tube 202 can be improved.

[0055] It should be understood that those of ordinary skill in the art can make improvements or changes according to the above description, and all such improvements and changes should fall within the protection scope of the appended claims of this application.

Claims

1. An all-terrain vehicle, comprising: a frame; a body cover supported by the frame; a running system, at least part of which is located below the frame; a suspension system connecting the running system to the frame; a power assembly supported by the frame and drivingly connected to the running system; a steering system including a steering handle, a steering tube connected to the steering handle, a steering rocker arm connected to the steering tube, a steering ball joint, and a steering tie rod rotatably connected to the steering rocker arm through the steering ball joint; characterized in that the steering rocker arm includes a connecting portion connected to the steering tube and a rocker arm portion rotatably connected to the steering ball joint. Define a transverse plane perpendicular to the length direction of the frame and a longitudinal plane perpendicular to the width direction of the frame. The steering ball joint extends substantially along a preset straight line direction. The positive projection of the preset straight line on the transverse plane is a first projection line, and the positive projection of the preset straight line on the longitudinal plane is a second projection line. The axis of the steering tube on the transverse plane is an axis first projection line, and the axis of the steering tube on the longitudinal plane is an axis second projection line. The rocker arm portion is configured to be bendable so that the included angle between the first projection line and the axis first projection ranges from 5° to 45°, and the included angle between the second projection line and the axis second projection ranges from 5° to 45°.

2. The all-terrain vehicle according to claim 1, characterized in that the included angle between the first projection line and the axis first projection ranges from 15° to 30°, and the included angle between the second projection line and the axis second projection ranges from 15° to 30°.

3. The all-terrain vehicle according to claim 1, characterized in that define a reference plane perpendicular to the height direction of the frame. The rocker arm portion extends substantially along a preset plane, and the included angle between the preset plane and the reference plane ranges from 5° to 45°.

4. The all-terrain vehicle according to claim 3, characterized in that the included angle between the preset plane and the reference plane ranges from 15° to 30°.

5. The all-terrain vehicle according to claim 1, characterized in that the steering system further includes a steering assist mechanism connected to the steering tube. The steering assist mechanism is configured to assist the steering tube to turn. A first limiting structure is provided on the steering tube, and the first limiting structure is configured to cooperate with the frame to limit the turning angle of the steering tube; a second limiting structure is provided on the steering rocker arm, and the second limiting structure is configured to cooperate with the frame to limit the turning angle of the steering rocker arm.

6. The all-terrain vehicle according to claim 5, characterized in that the first limiting structure is located between the steering assist mechanism and the steering handle, and the first limiting structure at least forms a limiting protrusion to limit the turning angle of the steering tube.

7. The all-terrain vehicle according to claim 5, characterized in that the frame includes a rotation fixing member through which the steering tube passes, the steering tube is rotatably connected to the rotation fixing member, a matching limiting portion is provided on the rotation fixing member, and the second limiting structure can cooperate with the matching limiting portion to limit the rotation angle of the steering rocker arm.

8. The all-terrain vehicle according to claim 1, characterized in that the steering system includes a mounting seat for connecting the steering tube and the steering handle. The mounting seat includes a lower mounting wall, a left mounting wall and a right mounting wall oppositely arranged along the width direction of the frame. The lower mounting wall is provided with a first channel extending along the height direction of the frame, and the left mounting wall or the right mounting wall is provided with a second channel extending along the width direction of the frame. The first channel and the second channel are communicated, and both the first channel and the second channel are configured to allow wiring harnesses and / or pipelines to pass through.

9. The all-terrain vehicle according to claim 8, characterized in that both the left mounting wall and the right mounting wall are provided with second channels extending along the width direction of the frame, and the two second channels are communicated with each other.

10. The all-terrain vehicle according to claim 9, characterized in that the mounting seat surrounds and forms a mounting space for accommodating wiring harnesses and / or pipelines. At least part of the first channel and the second channel are located in the accommodating space. The steering system further includes a protection plate, and the protection plate covers the mounting space and is fixedly connected to the mounting seat.

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