All-terrain vehicle

Abstract

The invention discloses an all-terrain vehicle which comprises a vehicle frame, a front suspension, a front wheel and a steering system, the front suspension is installed on the front portion of the vehicle frame, the front wheel is connected with the front suspension, the steering system comprises a steering rocker arm, a steering pull rod and a connecting rod mechanism, the connecting rod mechanism comprises a movable transverse rod, a sliding block and a shell, and the shell is fixed to the vehicle frame. The movable cross rod is arranged between the sliding block and the steering pull rod, and the movable cross rod is movably connected with the steering pull rod; the sliding block is arranged in the shell and is in clearance fit with the shell, and the sliding block can drive the movable cross rod to move under the action of the steering rocker arm; the front suspension comprises a mounting part connected with the frame, the steering pull rod comprises a connecting part connected with the movable cross rod, and the spacing distance between the orthographic projection of the mounting part on the horizontal plane and the orthographic projection of the connecting part on the horizontal plane is smaller than or equal to 15 mm. Through the arrangement, the toe-in angle change rate in the vehicle running process is reduced, and the vehicle has better stability.

Description

Technical Field

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

[0002] All-terrain vehicles are designed to be suitable for various complex terrain conditions. The steering system of an all-terrain vehicle is mainly divided into a steering wheel control system and a handlebar control system according to different uses. The working principle of the handlebar control steering system is that when the driver turns the handlebar, the steering handle drives the steering column, and then drives the steering rocker arm. The steering rocker arm drives the steering knuckle by connecting the steering rod, and finally realizes the steering control of the vehicle tire. The movement relationship between the steering rocker arm and the steering rod directly affects the change rate of the vehicle's toe angle. The toe angle refers to the angle of the vehicle tire relative to the vehicle's driving direction. The appropriate toe angle can reduce the steering deviation caused by tire wear or uneven road surface during driving. Excessive toe angle will cause uneven tire wear, thereby affecting the vehicle's driving stability and tire wear resistance.

[0003] However, the existing handlebar-controlled steering system has the following defects: due to the limitation of vehicle space layout, the volume of the steering rocker arm cannot be made too large, resulting in the inner point of the steering tie rod being closer to the symmetry plane of the vehicle (the symmetry plane is perpendicular to the width direction of the all-terrain vehicle and basically divides the frame in half) relative to the inner point of the steering rocker arm, so the length of the steering tie rod is greater than the length of the steering rocker arm. Due to the above defects, during the driving process of the vehicle, the toe angle of the front wheel changes at a large rate, which aggravates the wear of the tire and affects the driving stability of the vehicle. Summary of the invention

[0004] In order to solve the deficiencies of the prior art, the purpose of the present application is to provide an all-terrain vehicle with good driving stability.

[0005] To achieve the above objectives, this application adopts the following technical solutions: An all-terrain vehicle comprises a frame; a suspension system, the suspension system comprises a front suspension, and the front suspension is installed at the front of the frame; a running system, the running system comprises a front wheel connected to the front suspension; a steering system, the steering system comprises a steering handle, a steering column, a steering rocker arm and a steering tie rod, the steering handle is connected to the steering rocker arm through the steering column, the steering tie rod is connected to the front wheel, and the steering rocker arm can drive the front wheel to move through the steering tie rod; the steering system also comprises a connecting rod mechanism, the connecting rod mechanism is arranged between a pair of steering tie rods distributed on the left and right; the connecting rod mechanism comprises a moving cross bar, a slider and a and a shell extending along the width direction of the all-terrain vehicle, the shell is fixed to the frame, the movable cross bar is arranged between the slider and the steering rod, and the movable cross bar is movably connected to the steering rod; the slider is arranged in the shell and is loosely matched with the shell, the slider is connected to the steering rocker arm, and the slider can drive the movable cross bar to move under the action of the steering rocker arm; wherein, the front suspension includes a mounting portion connected to the frame, the steering rod includes a connecting portion connected to the movable cross bar, and the spacing distance between the orthographic projection of the mounting portion on the horizontal plane and the orthographic projection of the connecting portion on the horizontal plane in the width direction of the all-terrain vehicle is less than or equal to 15 mm.

[0006] Furthermore, the steering rocker arm includes a rocker shaft extending to the connecting rod mechanism, the connecting rod mechanism includes a movable pull rod, the rocker shaft has a rotation axis extending along the height direction, one end of the movable pull rod is installed on the rocker shaft and can rotate around the rotation axis, and the other end of the movable pull rod is movably connected to the slider.

[0007] Furthermore, the slider has an active cavity, one end of the active pull rod is provided with a ball head structure, and at least a part of the ball head structure is installed in the active cavity.

[0008] Furthermore, the connecting rod mechanism includes a pair of movable pull rods distributed on the left and right sides of the rocker shaft, the rocker shaft is provided with a pair of mounting columns extending along the height direction, the pair of mounting columns are respectively arranged on the upper and lower sides of the rocker shaft, and the pair of movable pull rods are respectively sleeved on the corresponding mounting columns, so that the pair of movable pull rods can rotate around their respective corresponding mounting columns.

[0009] Furthermore, a receiving portion is provided at one end of the movable cross bar, the connecting portion is provided as a ball head structure, the ball head structure and the receiving portion form a ball pair, and the steering rod can rotate relative to the receiving portion; the outer shell forms an accommodating cavity, the movable cross bar extends along the width direction of the all-terrain vehicle, and at least part of the movable cross bar extends outside the accommodating cavity.

[0010] Furthermore, the connecting rod mechanism includes a pair of sliders distributed along the width direction of the all-terrain vehicle, the pair of sliders are symmetrically distributed about the steering rocker arm, the part where the sliders are connected to the movable cross bar is defined as a third mounting part, the minimum interval between the pair of third mounting parts is defined as a first distance, the length of the accommodating cavity extending along the width direction of the all-terrain vehicle is defined as a second distance, and the first distance is smaller than the second distance.

[0011] Furthermore, the steering rocker arm includes a fixed part and a movable part extending toward the connecting rod mechanism, the two ends of the movable part are respectively connected to the fixed part and the connecting rod mechanism, the movable part is formed with a mounting groove, at least a portion of the fixed part is arranged in the mounting groove, and the movable part can move relative to the fixed part along the extension direction of the mounting groove, and the movable part can also rotate relative to the fixed part.

[0012] Further, when the movable portion moves relative to the fixed portion, an angle ranging from 0° to 180° is formed between the movable portion and the fixed portion.

[0013] Furthermore, the shell forms a accommodating cavity, and the length of the accommodating cavity extending along the width direction of the all-terrain vehicle is defined as a second distance. The length of the movable cross bar is greater than the second distance. The slider is sleeved on the middle part of the movable cross bar and fixedly connected to the movable cross bar.

[0014] Furthermore, an opening extending along the width direction of the all-terrain vehicle is provided on the shell, and the movable part is connected to the slider through the opening.

[0015] The all-terrain vehicle provided by the present application is provided with a movable crossbar, a slider, and a housing extending in the width direction of the all-terrain vehicle, so that the slider drives the movable crossbar to move in the width direction of the all-terrain vehicle under the action of the steering rocker arm, and the steering tie rod connected to the movable crossbar can drive the front wheel to move, converting the rotary motion of the steering rocker arm into the linear motion of the connecting rod mechanism, thereby improving the stability of the steering system. In addition, based on the above-mentioned arrangement, the length of the connecting rod mechanism in the width direction of the all-terrain vehicle can be shortened, so that the interval between the mounting portion and the connecting portion is within a preset range, the change rate of the vehicle's toe angle is reduced, the vehicle's deviation and abnormal tire wear are reduced, and the vehicle's driving stability is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of an all-terrain vehicle in an embodiment of the present application; Figure 2 This is a schematic diagram of the structure of the vehicle frame and the steering system in the implementation manner of the present application; Figure 3 This is a schematic diagram of the structure of the steering system in the implementation manner of the present application; Figure 4 This is a schematic diagram of the structure of the steering system and the suspension system in the implementation manner of the present application; Figure 5 A schematic diagram of a local structure of a steering system in an embodiment of the present application; Figure 6 It is a first schematic diagram of a local structure of another steering system in an embodiment of the present application; Figure 7 This is a second schematic diagram of a local structure of another steering system in an embodiment of the present application. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the specific implementation manner of the present application will be clearly and completely described below in conjunction with the drawings in the implementation manner of the present application.

[0018] It should be noted that the directional nouns such as up, down, left, right, front, and back, or ordinal numbers such as "first, second" mentioned in this article are based on the drawings in the specification and are introduced for the convenience of description. They do not mean any limitation on the order of the components. In addition, since the functions of some parts of the various components provided in the above embodiments are the same, this specification adopts a unified naming method for these parts.

[0019] like Figure 1 and Figure 2 As shown, in the first aspect, the present application provides an all-terrain vehicle 100, which includes a frame 11, a body cover 12, a suspension system 13, a running system 14 and a steering system 15. The frame 11 constitutes the basic framework of the all-terrain vehicle 100, and the body cover 12 covers at least part of the frame 11, and the body cover 12 includes but is not limited to the engine hood, the trunk cover, the door, the fender, the body side, the roof, etc. The suspension system 13 is connected between the frame 11 and the running system 14, and is used to transmit the force and torque between the frame 11 and the running system 14, so as to reduce the vibration caused by the uneven road surface during the driving process of the vehicle. The suspension system 13 includes a front suspension 131, which is installed at the front of the frame 11 in a movable connection manner, so as to provide buffering and support for the front of the vehicle. At least part of the running system 14 is located below the frame 11, and is used to support the all-terrain vehicle 100. The running system 14 includes a front wheel 141 connected to the front suspension 131.

[0020] In order to clearly illustrate the technical solution of the present application, the following is also provided: Figure 1 The vertical, horizontal, and front-to-back directions of the all-terrain vehicle 100 are shown in FIG. Figure 1 In the front-to-back direction shown, the height direction of the frame 11 is Figure 1 The vertical direction shown in FIG. 1 is the width direction of the all-terrain vehicle 100. Figure 1 Left and right directions shown.

[0021] like Figure 2 and Figure 3As shown, the steering system 15 includes a steering handle 151, a steering column 152, a steering rocker arm 153 and a steering tie rod 154. The steering handle 151 is connected to the steering rocker arm 153 through the steering column 152. The steering tie rod 154 is connected to the front wheel 141. The steering rocker arm 153 can drive the front wheel 141 to rotate left and right through the steering tie rod 154. As an implementation mode, the steering system 15 also includes a connecting rod mechanism 155. The steering system 15 includes a pair of steering tie rods 154 distributed along the width direction of the all-terrain vehicle 100. The pair of steering tie rods 154 are respectively connected to the front wheels 141 in corresponding directions. The connecting rod mechanism 155 is arranged between the pair of steering tie rods 154 and is movably connected to the steering tie rods 154.

[0022] like Figure 4 and Figure 5 As shown, the link mechanism 155 includes a moving cross bar 1551, a slider 1552, and a housing 1553 extending in the width direction of the all-terrain vehicle 100 (see Figure 3 ), the housing 1553 is fixed to the vehicle frame 11, and the moving cross bar 1551 is arranged between the slider 1552 and the steering rod 154. In this embodiment, the connecting rod mechanism 155 has a pair of moving cross bars 1551 and a pair of sliders 1552 distributed on the left and right. The moving cross bar 1551 on the left cooperates with the slider 1552 in the corresponding direction to control the left front wheel 141 to rotate left and right under the action of the steering rocker arm 153, and the moving cross bar 1551 on the right cooperates with the slider 1552 in the corresponding direction to control the right front wheel 141 to move under the action of the steering rocker arm 153. Since the connecting rod mechanism 155 is basically symmetrically distributed with respect to the steering rocker arm 153, only the moving cross bar 1551 and the slider 1552 on one side are introduced below.

[0023] Specifically, one end of the movable cross bar 1551 is movably connected to the steering rod 154, and the other end of the movable cross bar 1551 is fixedly connected to the slider 1552. The fixed connection method includes but is not limited to welding, bolt connection, clamping and one-piece molding.

[0024] The slider 1552 is arranged in the shell 1553 and is loosely matched with the shell 1553. The slider 1552 is connected to the steering rocker arm 153, so that the slider 1552 can drive the moving cross bar 1551 to move under the action of the steering rocker arm 153, and then the steering rod 154 can drive the front wheel 141 to rotate left and right under the action of the moving cross bar 1551.

[0025] In this embodiment, the front suspension 131 includes a mounting portion 1311 connected to the frame 11, and the steering rod 154 includes a connecting portion 1541 connected to the moving cross bar 1551, defining a horizontal plane 101 perpendicular to the height direction of the frame 11, and the distance between the orthographic projection of the mounting portion 1311 on the horizontal plane 101 and the orthographic projection of the connecting portion 1541 on the horizontal plane 101 on the same side in the width direction of the all-terrain vehicle 100 is less than or equal to 15 mm. It should be noted that if the interval D1 is too large, the swing angle of the steering rod 154 increases, resulting in an increase in the rate of change of the toe angle.

[0026] In the specific operation process, when the driver turns the steering handle 151, the steering handle 151 drives the steering rocker arm 153 to rotate through the steering column 152, and the steering rocker arm 153 drives the moving crossbar 1551 through the slider 1552. Since the moving direction of the slider 1552 is limited by the shell 1553, it can only move in the width direction of the all-terrain vehicle 100, and then the moving crossbar 1551 drives the steering rod 154 to move, so that the front wheel 141 rotates in a coordinated manner in the corresponding direction. In some optional implementations, a steering assist device can also be provided between the steering column 152 and the steering rocker arm 153 to reduce the force applied by the driver to the steering handle 151, so as to achieve the same or similar steering effect.

[0027] Through the above arrangement, based on the link mechanism 155 composed of at least the moving crossbar 1551, the slider 1552 and the housing 1553, the link mechanism 155 occupies a smaller space in the width direction of the all-terrain vehicle 100, and through the cooperation of the slider 1552 and the steering rocker arm 153, the rotary motion of the steering rocker arm 153 is converted into the linear motion of the moving crossbar 1551, thereby improving the steering accuracy of the steering system 15 and making the steering process more stable. In addition, it should be noted that during the movement of the all-terrain vehicle 100, the suspension system 13 will jump up and down, causing the relative position of the front wheel 141 to change. Since the interval between the orthographic projection of the mounting portion 1311 and the orthographic projection of the connecting portion 1541 is within the preset interval range, the swing radius of the connecting portion 1541 is substantially the same as the swing radius of the mounting portion 1311. Within the same movement range of the front suspension 131, the change range of the vehicle toe angle is small, thereby avoiding the deviation phenomenon that may occur during the steering process, reducing tire wear, and improving the stability and controllability of the vehicle.

[0028] like Figure 5As shown, as an implementation, the steering rocker arm 153 includes a rocker arm shaft 1531 extending toward the link mechanism 155, and the rocker arm shaft 1531 is used to connect the link mechanism 155, and plays a role in transmitting the steering torque provided by the steering rocker arm 153 to the link mechanism 155. The link mechanism 155 includes a pair of movable rods 1554 extending substantially along the width direction of the all-terrain vehicle 100, and the rocker arm shaft 1531 is disposed between the pair of movable rods 1554. Taking any movable rod 1554 as an example, the opposite ends of the movable rod 1554 are respectively movably connected to the rocker arm shaft 1531 and the slider 1552.

[0029] Specifically, the rocker shaft 1531 has a rotation axis 1531a extending in the height direction of the vehicle frame 11. One end of the movable tie rod 1554 is mounted on the rocker shaft 1531 and can rotate around the rotation axis 1531a, so that the movable tie rod 1554 and the rocker shaft 1531 form a rotation pair. The other end of the movable tie rod 1554 is provided with a ball head structure 1554a, and a movable cavity (not shown) is formed in the slider 1552. At least part of the ball head structure 1554a is mounted in the movable cavity, so that the ball head structure 1554a and the slider 1552 form a ball pair. Since the movable tie rod 1554 can rotate around the rotation axis 1531a, when the rocker shaft 1531 rotates, the movement of the movable tie rod 1554 is constrained by the rocker shaft 1531, and the movable tie rod 1554 will swing around the rocker shaft 1531. Since a ball joint is formed between the movable rod 1554 and the slider 1552, the above connection method provides multi-degree-of-freedom rotation capability, allowing the movable rod 1554 to adjust its movement relative to the slider 1552 in any direction, so that the slider 1552 can move smoothly without being restricted by the rigid connection. Through the above arrangement, when the slider 1552 moves, there will be no rigid interference between the slider 1552 and the movable rod 1554, thereby ensuring the freedom of movement of the slider 1552.

[0030] It should be noted that the above arrangement is based on the main body of the steering rocker arm 153 extending substantially along the height direction of the vehicle frame 11, and the extension direction of the rotation axis 1531a is also parallel to the height direction of the vehicle frame 11. Optionally, if the main body of the steering rocker arm 153 is arranged obliquely relative to the horizontal plane 101, the rotation axis 1531a may also form an angle with the horizontal plane 101, that is, the extension direction of the rotation axis 1531a depends on the extension direction of the main body of the steering rocker arm 153.

[0031] like Figure 5As shown, in this embodiment, the rocker shaft 1531 has a pair of mounting posts 1531b extending in the height direction, and the pair of mounting posts 1531b are distributed on the upper and lower sides of the rocker shaft 1531 in the height direction, that is, the upper and lower sides of the rocker shaft 1531 are provided with mounting posts 1531b, the mounting post 1531b located on the upper side is connected to the movable rod 1554 on the right side, and the mounting post 1531b located on the lower side is connected to the movable rod 1554 on the left side. The pair of movable rods 1554 are respectively sleeved on the outer edges of the corresponding side mounting posts 1531b, so that the pair of movable rods 1554 can rotate around their corresponding mounting posts 1531b.

[0032] As an implementation method, one end of the movable crossbar 1551 is provided with a receiving portion 1551a, the connecting portion 1541 is provided with a ball head structure, the ball head structure and the receiving portion 1551a form a ball pair, and the steering rod 154 can rotate relative to the receiving portion 1551a; the housing 1553 forms a receiving cavity 1553a (see Figure 3 ), the movable cross bar 1551 extends along the width direction of the all-terrain vehicle 100, and at least a portion of the movable cross bar 1551 extends outside the accommodating cavity 1553a.

[0033] like Figure 3 and Figure 5 As shown, during the steering operation of the steering system 15, the steering rod 154 needs a certain degree of freedom to adapt to different steering angles. In the embodiment of the present application, the portion where the slider 1552 is connected to the corresponding movable cross bar 1551 is defined as a third mounting portion 1552a. According to the above content, it can be seen that the connecting rod mechanism 155 provided in the present application includes a pair of sliders 1552, and the pair of sliders 1552 are symmetrically distributed about the steering rocker arm 153, so the connecting rod mechanism 155 has a pair of third mounting portions 1552a distributed left and right, and the minimum interval between the pair of third mounting portions 1552a is defined as a first distance L1, and the length of the accommodating cavity 1553a extending along the width direction of the all-terrain vehicle 100 is defined as a second distance L2, and the first distance L1 is smaller than the second distance L2.

[0034] Further, the interval between a pair of accommodating portions 1551a distributed along the left and right sides is defined as a third distance L3, and the third distance L3 is greater than the second distance L2.

[0035] Through the above arrangement, the slider 1552 has enough space for movement in the accommodating cavity 1553a.

[0036] like Figure 6As shown, in the second aspect, another steering system 16 is provided in the embodiment of the present application. In addition to the steering handle and steering column that are the same as the steering system 15 in the first aspect, the steering system 16 also includes a steering rocker arm 161, a connecting rod mechanism 162, and a steering rod 163 that are different from the steering system 15 in the first aspect.

[0037] The connecting rod mechanism 162 includes a moving crossbar 1621, a slider 1622, and a housing 1623 extending along the width direction of the all-terrain vehicle 100. The housing 1623 is fixed to the frame 11, and the moving crossbar 1621 is arranged between the slider 1622 and the steering rod 163. As an implementation mode, the connecting rod mechanism 162 has a pair of moving crossbars 1621 and a slider 1622 distributed on the left and right. The moving crossbar 1621 on the left cooperates with the slider 1622 to control the movement of the left front wheel 141 under the action of the steering rocker arm 161, and the moving crossbar 1621 on the right cooperates with the slider 1622 to control the movement of the right front wheel 141 under the action of the steering rocker arm 161. Since the connecting rod mechanism 162 is basically symmetrically distributed with respect to the steering rocker arm 161. That is to say, the moving crossbars 1621 on the left and right sides of the slider 1622 are two independent components, and the moving crossbar 1621 on the left, the slider 1622 and the moving crossbar 1621 on the right together form a whole. Alternatively, the moving crossbar 1621 is an integral component, and the slider 1622 is sleeved in the middle of the moving crossbar 1621 and fixedly connected to the moving crossbar 1621. Since the moving crossbars 1621 on both sides of the slider 1622 have basically the same structure, only the moving crossbar 1621 and the slider 1622 on one side are described below.

[0038] Specifically, one end of the movable cross bar 1621 is movably connected to the steering rod 163, and the other end of the movable cross bar 1621 is fixedly connected to the slider 1622. The fixed connection methods include but are not limited to welding, bolt connection, clamping and one-piece molding.

[0039] The slider 1622 is arranged in the shell 1623 and is loosely matched with the shell 1623. The slider 1622 is connected to the steering rocker arm 161, so that the slider 1622 can drive the moving cross bar 1621 to move under the action of the steering rocker arm 161, and then the steering rod 163 can drive the front wheel 141 to rotate left and right under the action of the moving cross bar 1621.

[0040] In this embodiment, the front suspension 131 includes a mounting portion 1311 connected to the frame 11, and the steering rod 163 includes a connecting portion 1631 connected to the moving crossbar 1621, defining a horizontal plane 101 perpendicular to the height direction of the frame 11, and the distance between the orthographic projection of the mounting portion 1311 on the horizontal plane 101 and the orthographic projection of the connecting portion 1631 on the horizontal plane 101 in the width direction of the all-terrain vehicle 100 is less than or equal to 15 mm. It should be noted that if the distance is too large, the swing angle of the steering rod 163 increases, resulting in an increase in the rate of change of the toe angle.

[0041] Through the above arrangement, based on the link mechanism 162 composed of at least the moving cross bar 1621, the slider 1622 and the housing 1623, the link mechanism 162 occupies a smaller space in the width direction of the all-terrain vehicle 100, and through the cooperation of the slider 1622 and the steering rocker arm 161, the rotary motion of the steering rocker arm 161 is converted into the linear motion of the moving cross bar 1621, thereby improving the steering accuracy of the steering system 16 and making the steering process more stable. In addition, based on the above arrangement, the change range of the toe angle when the vehicle moves is small, thereby avoiding the deviation phenomenon that may occur during the steering process, reducing tire wear, and improving the stability and controllability of the vehicle.

[0042] like Figure 6 As shown, as an implementation mode, the steering rocker arm 161 includes a fixed portion 1611 and a movable portion 1612 extending toward the connecting rod mechanism 162, and the two ends of the movable portion 1612 are respectively connected to the fixed portion 1611 and the connecting rod mechanism 162. A mounting groove 1612a is formed on the movable portion 1612, and at least a part of the fixed portion 1611 is arranged in the mounting groove 1612a, so that the movable portion 1612 can move relative to the fixed portion 1611 along the extension direction of the mounting groove 1612a. Since there is a matching gap between the mounting groove 1612a of the movable portion 1612 and the fixed portion 1611, the fixed portion 1611 can slide freely in the mounting groove 1612a. Through the above arrangement, the fixed portion 1611 can transmit the steering torque to the movable portion 1612, thereby assisting the steering system 16 to achieve the steering operation.

[0043] like Figure 7 As shown, specifically, the mounting groove 1612a is a waist-shaped through hole that passes through the movable part 1612 itself, and the fixed part 1611 forms a circular protrusion 1611a. The circular protrusion 1611a passes through the mounting groove 1612a and is gap-matched with the mounting groove 1612a. Through the joint action of the circular protrusion 1611a and the mounting groove 1612a, the movable part 1612 can move relative to the fixed part 1611 along the extension direction of the mounting groove 1612a, and the movable part 1612 can also rotate relative to the fixed part 1611.

[0044] Furthermore, when the movable portion 1612 moves relative to the fixed portion 1611 , an angle α ranging from 0° to 180° is formed between the movable portion 1612 and the fixed portion 1611 .

[0045] In this embodiment, the housing 1623 is provided with an opening 1623 a extending along the width direction of the ATV 100 . At least a portion of the movable portion 1612 passes through the opening 1623 a and is connected to the slider 1622 . The slider 1622 is fixedly connected to the movable cross bar 1621 .

[0046] The housing 1623 forms a receiving cavity (not shown), and the length of the receiving cavity extending along the width direction of the all-terrain vehicle 100 is defined as a fourth distance L4. In order to allow the moving cross bar 1621 to have sufficient movement space in the receiving cavity 1553a, the fourth distance L4 is smaller than the length L5 of the moving cross bar 1621.

[0047] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to this application.

Claims

1. An all-terrain vehicle comprising: Frame; A suspension system, the suspension system comprising a front suspension, the front suspension being mounted on the front portion of the frame; A traveling system, the traveling system comprising a front wheel connected to the front suspension; A steering system, the steering system comprising a steering rocker arm, a steering tie rod and a connecting rod mechanism, the steering tie rod is connected to the front wheel, the steering rocker arm can drive the front wheel to rotate left and right through the steering tie rod, the connecting rod mechanism is arranged between a pair of steering tie rods distributed left and right, the connecting rod mechanism comprises a moving cross bar, a slider and a shell extending along the width direction of the all-terrain vehicle, the shell is fixed to the frame, the moving cross bar is arranged between the slider and the steering tie rod, and the moving cross bar is movably connected to the steering tie rod; It is characterized in that the slider is arranged in the outer shell and is loosely matched with the outer shell, the slider is connected to the steering rocker arm, and the slider can drive the movable cross bar to move under the action of the steering rocker arm; the front suspension includes a mounting portion connected to the frame, and the steering rod includes a connecting portion connected to the movable cross bar, and the distance between the orthographic projection of the mounting portion on the horizontal plane and the orthographic projection of the connecting portion on the horizontal plane in the width direction of the all-terrain vehicle is less than or equal to 15 mm.

2. The all-terrain vehicle according to claim 1, characterized in that: The steering rocker arm includes a rocker shaft extending toward the connecting rod mechanism, the connecting rod mechanism includes a movable tie rod, the rocker shaft has a rotation axis extending along the height direction of the frame, one end of the movable tie rod is installed on the rocker shaft and can rotate around the rotation axis, and the other end of the movable tie rod is movably connected to the slider.

3. The all-terrain vehicle according to claim 2, characterized in that: The slider has an active cavity, one end of the active pull rod is provided with a ball head structure, and at least a part of the ball head structure is installed in the active cavity.

4. The all-terrain vehicle according to claim 2, characterized in that: The connecting rod mechanism includes a pair of movable pull rods distributed on the left and right sides of the rocker shaft, the rocker shaft is provided with a pair of mounting columns extending along the height direction, the pair of mounting columns are respectively arranged on the upper and lower sides of the rocker shaft, and the pair of movable pull rods are respectively sleeved on the corresponding mounting columns, so that the pair of movable pull rods can rotate around their respective corresponding mounting columns.

5. The all-terrain vehicle according to claim 1, characterized in that: A receiving portion is provided at one end of the movable cross bar, the connecting portion is provided as a ball head structure, the ball head structure and the receiving portion form a ball pair, and the steering rod can rotate relative to the receiving portion; the outer shell forms an accommodating cavity, the movable cross bar extends along the width direction of the all-terrain vehicle, and at least part of the movable cross bar extends outside the accommodating cavity.

6. The all-terrain vehicle according to claim 5, characterized in that: The connecting rod mechanism includes a pair of sliders distributed along the width direction of the all-terrain vehicle, and the pair of sliders are symmetrically distributed about the steering rocker arm. The part where the slider is connected to the movable cross bar is defined as a third mounting part, and the minimum interval between a pair of third mounting parts is defined as a first distance. The length of the accommodating cavity extending along the width direction of the all-terrain vehicle is defined as a second distance, and the first distance is smaller than the second distance.

7. The all-terrain vehicle according to claim 1, characterized in that: The steering rocker arm includes a fixed part and a movable part extending toward the connecting rod mechanism, two ends of the movable part are respectively connected to the fixed part and the connecting rod mechanism, the movable part is formed with a mounting groove, at least a part of the fixed part is arranged in the mounting groove, and the movable part can move relative to the fixed part along the extension direction of the mounting groove, and the movable part can also rotate relative to the fixed part.

8. The all-terrain vehicle according to claim 7, characterized in that: When the movable portion moves relative to the fixed portion, an angle ranging from 0° to 180° is formed between the movable portion and the fixed portion.

9. The all-terrain vehicle according to claim 7, characterized in that: The shell is provided with an opening extending in the width direction of the all-terrain vehicle, at least a portion of the movable portion passes through the opening and is connected to the slider, and the slider is fixedly connected to the moving cross bar.

10. The all-terrain vehicle according to claim 7, characterized in that: The housing forms a receiving cavity, and a length of the receiving cavity extending along a width direction of the all-terrain vehicle is smaller than a length of the moving cross bar.

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