All-terrain vehicle

Abstract

The utility model discloses an all-terrain vehicle. The all-terrain vehicle comprises a vehicle frame, a walking system, a suspension system, a power assembly and a towing assembly. The walking system is at least partially located below the frame; the suspension system connects the walking system to the frame; the power assembly is supported by the frame and is in transmission connection with the walking system; the pull assembly is located behind the frame and connected with the frame. The pulling assembly comprises a pulling piece used for pulling and a connecting piece, the pulling piece and the connecting piece are fixedly connected or integrally formed, the frame comprises a mounting part, the connecting piece is movably connected with the frame through the mounting part, and the connecting piece is provided with a first limit position and a second limit position relative to the frame. The height of the connecting piece is adjustable between a first limit position and a second limit position relative to the frame. By means of the arrangement, the adaptability of the pulling and hanging assembly can be improved.

Description

TECHNICAL FIELD

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

[0002] When the existing all-terrain vehicle drags other vehicles, a towing mechanism is usually arranged at the rear of the vehicle frame to drag the trailer. However, the structure of the existing all-terrain vehicle towing mechanism is relatively fixed, and the installation height of the towing mechanism cannot be adjusted, so that the all-terrain vehicle cannot be adapted to different sizes of trailers, thereby reducing the towing adaptability of the all-terrain vehicle. At the same time, due to the fixed structure of the towing mechanism, the inclination angle of the trailer is fixed when the all-terrain vehicle drags the trailer, which may cause interference with the loading of goods when the trailer is towed, for example, the inclination angle of the trailer may interfere with the placement position and height of the goods on the trailer, so that the all-terrain vehicle cannot be adapted to different load capacities of the trailer, further reducing the towing adaptability of the all-terrain vehicle.

[0003] Therefore, how to improve the towing adaptability of the all-terrain vehicle is a technical problem that needs to be solved in the field. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problems of the prior art, the purpose of the present application is to provide an all-terrain vehicle with high adaptability of the towing assembly.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows:

[0006] An all-terrain vehicle, comprising a vehicle frame, a running system, a suspension system, a power assembly and a towing assembly. The running system is at least partially located below the vehicle frame; the suspension system connects the running system to the vehicle frame; the power assembly is supported by the vehicle frame and is in transmission connection with the running system; the towing assembly is located at the rear of the vehicle frame and is connected with the vehicle frame. The towing assembly comprises a towing member for towing and a connecting member, the towing member and the connecting member are fixedly connected or integrally formed, the vehicle frame comprises a mounting portion, the connecting member is movably connected with the vehicle frame through the mounting portion, the connecting member has a first limit position and a second limit position relative to the vehicle frame, and the height of the connecting member relative to the vehicle frame is adjustable between the first limit position and the second limit position.

[0007] Further, the connecting member is provided with a plurality of fixed holes with different heights, and the towing assembly further comprises a fastener, the fastener is arranged in the fixed hole with different heights and connected with the mounting portion, so as to adjust the height of the connecting member relative to the vehicle frame.

[0008] Further, the fastener is a pin shaft, and the towing assembly further comprises a split pin, the pin shaft is arranged in the fixed hole and the mounting portion and is fixed with the split pin; or, the fastener is a bolt, and the towing assembly further comprises a nut, the bolt is arranged in the fixed hole and the mounting portion and is fixed with the nut.

[0009] Further, the frame comprises a main frame and a mounting frame, the mounting frame is mounted on the main frame, the fastener is arranged in the fixing hole and connected with the mounting frame; the mounting frame comprises a support and a mounting portion, the support extends along the width direction of the frame, and the mounting portion is a mounting sleeve arranged in the support along the height direction of the frame, the mounting sleeve is connected with the support, the mounting sleeve is sleeved on the connecting piece, and the fastener is arranged in the mounting sleeve and the fixing hole.

[0010] Further, a plurality of fixing grooves with different heights are arranged on the connecting piece, and the towing assembly further comprises a locking piece, the locking piece is arranged in the mounting portion and abuts against the groove bottom of the fixing grooves with different heights, so as to adjust the height of the connecting piece relative to the frame.

[0011] Further, each fixing groove is a circular groove, and adjacent two fixing grooves are communicated along the height direction of the frame.

[0012] Further, the all-terrain vehicle comprises a driving assembly, the driving assembly is mounted on the frame, and the driving assembly is in transmission connection with the connecting piece, so as to drive the connecting piece to move along the height direction of the frame.

[0013] Further, the driving assembly comprises a hydraulic rod and a hydraulic cylinder, the hydraulic cylinder is used for driving the hydraulic rod, the hydraulic cylinder is mounted on the frame, and the hydraulic rod is connected with the connecting piece; or the driving assembly comprises a driving motor, a lead screw and a driving nut, the driving motor is in transmission connection with the lead screw, the driving nut is sleeved on the lead screw and fixedly connected with the connecting piece.

[0014] Further, a reference surface perpendicular to the height direction of the frame is defined, a preset straight line is defined, an included angle between the preset straight line and the reference surface is an acute angle, the connecting piece extends along the preset straight line, and the connecting piece moves along the preset straight line relative to the frame.

[0015] Further, a reference surface perpendicular to the height direction of the frame is defined, the reference surface passes through the lowest end of the walking system, and the minimum distance between the towing piece and the reference surface along the height direction of the frame ranges from 300 mm to 600 mm.

[0016] The all-terrain vehicle can tow a trailer through the setting of the towing assembly, the connecting piece is movably connected with the frame, and the height of the connecting piece relative to the frame is adjustable, so that the all-terrain vehicle can be connected with trailers with different sizes through the towing assembly, and the towing adaptability of the towing assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A structure diagram of the all-terrain vehicle provided by the embodiment of the application is provided.

[0018] Figure 2 A structure diagram of a first towing assembly of the all-terrain vehicle provided by the embodiment of the application is provided.

[0019] Figure 3A side view of a first trailer assembly of an all-terrain vehicle according to an embodiment of the present application.

[0020] Figure 4 A side view of a second trailer assembly of an all-terrain vehicle according to an embodiment of the present application.

[0021] Figure 5 A structure view of a third trailer assembly of an all-terrain vehicle according to an embodiment of the present application.

[0022] Figure 6 A structure view of a fourth trailer assembly of an all-terrain vehicle according to an embodiment of the present application.

[0023] Figure 7 A side view of a fifth trailer assembly of an all-terrain vehicle according to an embodiment of the present application.

[0024] Figure 8 A side view of a sixth trailer assembly of an all-terrain vehicle according to an embodiment of the present application.

[0025] Figure 9 A side view of a seventh trailer assembly of an all-terrain vehicle according to an embodiment of the present application.

[0026] Figure 10 A schematic view of a rear structure of an all-terrain vehicle according to an embodiment of the present application. DETAILED DESCRIPTION

[0027] In order to make the personnel in the art better understand the scheme of the present application, the technical scheme in the specific embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0028] As shown in Figure 1 and Figure 2 , the present application provides an all-terrain vehicle 100, which comprises a vehicle frame 11, a vehicle body cover 12, a walking system 13, a suspension system 14, a power assembly 15 and a trailer assembly 16.

[0029] In order to clearly illustrate the technical scheme of the present application, the front, rear, left, right, upper and lower directions as shown in Figure 1 are defined. In the present application, the length direction of the vehicle frame 11 refers to the front-rear direction in Figure 1 , the width direction of the vehicle frame 11 refers to the left-right direction in Figure 1 , and the height direction of the vehicle frame 11 refers to the upper-lower direction in Figure 1 .

[0030] The vehicle frame 11 is a basic frame of the all-terrain vehicle 100, and is used to support the vehicle body cover 12, the running system 13, the suspension system 14, the power assembly 15, and the towed component 16. The vehicle body cover 12 is at least partially mounted on the vehicle frame 11, so that the vehicle body cover 12 can protect the components inside the all-terrain vehicle 100. The running system 13 is at least partially located below the vehicle frame 11, and is used to drive the all-terrain vehicle 100 to move. The suspension system 14 connects the running system 13 to the vehicle frame 11. Specifically, the running system 13 includes front wheels 131 and rear wheels 132, and the front wheels 131 and the rear wheels 132 are both connected to the vehicle frame 11 through the suspension system 14. The power assembly 15 is in transmission connection with the running system 13. Specifically, the power assembly 15 can be in transmission connection with the front wheels 131, the power assembly 15 can be in transmission connection with the rear wheels 132, or the power assembly 15 can be in transmission connection with both the front wheels 131 and the rear wheels 132. The towed component 16 is located at the rear of the vehicle frame 11 and is connected to the vehicle frame 11, and is used to tow a trailer.

[0031] As shown in Figure 2 In this embodiment, the towed component 16 includes a towed part 162 and a connecting part 163, the connecting part 163 is connected to the towed part 162, and the connecting part 163 is movably connected to the vehicle frame 11, so that the towed part 162 is connected to the vehicle frame 11, and the height of the connecting part 163 relative to the vehicle frame 11 is adjustable. The towed part 162 is used to connect the trailer.

[0032] Specifically, the vehicle frame 11 includes a mounting portion 110, and the connecting part 163 is movably connected to the vehicle frame 11 through the mounting portion 110. The connecting part 163 has a first limit position and a second limit position relative to the vehicle frame 11, and the height of the connecting part 163 relative to the vehicle frame 11 is adjustable between the first limit position and the second limit position.

[0033] Through the above arrangement, the towed part 162 and the connecting part 163 connect the trailer to the vehicle frame 11, so that the all-terrain vehicle 100 can tow the trailer. At the same time, the height of the connecting part 163 relative to the vehicle frame 11 is adjustable, so that the connecting part 163 can connect trailers of different heights, thereby improving the adaptability of the towed component 16.

[0034] In this application, the towed part 162 is provided with a connecting structure, and the connecting structure is used to connect the towed part 162 to the trailer. For example, the connecting structure can be a ball head structure. When the towed part 162 tows the trailer and vibrates, the ball head structure allows the connecting part 162 and the trailer to move relative to each other at the connection position, thereby reducing the force acting on the connection position of the towed part 162 and the trailer, and improving the service life of the all-terrain vehicle 100 when towing the trailer.

[0035] It should be noted that the connecting structure can also be a cylindrical structure, and the application does not limit the form of the connecting structure, as long as the connecting part 162 and the trailer can be relatively movable.

[0036] As shown in Figure 2 and Figure 3 As an embodiment, the connecting part 163 is provided with a plurality of fixed holes 1631 with different heights, and the trailer assembly 16 further comprises a fastener 161, which is arranged in the fixed hole 1631 with different heights and connected with the mounting part 110, so as to adjust the height of the connecting part 163 relative to the frame 11.

[0037] Through the above arrangement, the fastener 161 can be arranged in different fixed holes 1631, so that the connecting part 163 can be fixed at different positions along the height direction of the frame 11, so that the trailer assembly 16 can be adjusted in height according to different models of trailers, so that the trailer assembly 16 can be connected with trailers of different heights, thereby improving the adaptability of the all-terrain vehicle 100 and the trailer of different heights. At the same time, the above arrangement can adjust the inclination angle of the trailer when connected with the trailer assembly 16, so as to avoid the interference of the inclination angle of the trailer with the loading of goods on the trailer, so as to adjust the inclination angle of the trailer and the trailer assembly 16 according to the loading amount of the goods on the trailer, thereby improving the adaptability of the all-terrain vehicle 100 and the trailer with different loading amounts of goods.

[0038] As an embodiment, the connecting part 163 comprises a connecting part 1632 extending along the height direction of the frame 11, and a plurality of fixed holes 1631 are arranged in the connecting part 1632, and the trailer part 162 is at least partially located above the connecting part 1632. Through the above arrangement, a certain height difference can be maintained between the trailer part 162 and the frame 11, so that the trailer part 162 can be connected with the trailer higher than the connecting part 163, so that the all-terrain vehicle 100 can tow the trailer with higher height. In addition, it can also avoid the interference between the trailer part 162 and the frame 11, so as to improve the convenience of the all-terrain vehicle 100 for towing the trailer.

[0039] Specifically, the connecting part 163 comprises an extension part 1633 extending along the length direction of the frame 11, the extension part 1633 is connected with the connecting part 1632 and at least partially located above the connecting part 1632, and the trailer part 162 is mounted on the extension part 1633. Through the above arrangement, a certain spacing distance is arranged between the trailer part 162 and the frame 11, so as to avoid the collision between the trailer and the frame 11 when the trailer assembly 16 tows the trailer, so as to improve the safety of the trailer assembly 16 when towing the trailer.

[0040] As shown in Figure 4As shown, as another implementation, the hitch 162 is at least partially below the connecting portion 1632. Through the above arrangement, a height difference between the hitch 162 and the frame 11 can be maintained, so that the hitch 162 can be connected with a trailer lower than the connecting portion 163, so that the ATV 100 can tow a trailer with a lower height.

[0041] Specifically, the extension portion 1633 is connected with the connecting portion 1632 and at least partially below the connecting portion 1632, and the hitch 162 is mounted on the extension portion 1633.

[0042] Therefore, the present application does not limit the hitch 162 to be above or below the connecting portion 1632. And the extension portion 1633 is not limited to be above or below the connecting portion 1632.

[0043] As shown, Figure 3 The fastener 161 can be a pin 1611, and the hitch assembly 16 further comprises a split pin 1612, the pin 1611 is arranged through the fixing hole 1631 and the mounting portion 110 and is fixed with the split pin 1612. Through the above arrangement, the hitch 162 can be precisely positioned in the axial and radial directions, so that the connection between the hitch assembly 16 and the frame 11 is more firm, thereby improving the connection strength when the hitch assembly 16 connects the trailer and the frame 11. At the same time, the above arrangement can also reduce the vibration amplitude during the hitch assembly 16 towing the trailer, thereby improving the stability of the hitch assembly 16 to prolong the stability and durability of the hitch assembly 16. In addition, the pin 1611 and the split pin 1612 are convenient to disassemble and assemble, which can also improve the disassembly and assembly efficiency between the hitch assembly 16 and the frame 11.

[0044] As shown, Figure 4 As another implementation, the fastener 161 can also be a bolt 1613, and the hitch assembly 16 further comprises a nut 1614, the bolt 1613 is arranged through the fixing hole 1631 and the mounting portion 110 and is fixed with the nut 1614. Through the above arrangement, sufficient pre-tightening force can be applied when the hitch assembly 16 is connected with the frame 11, thereby improving the load capacity when the hitch assembly 16 connects the trailer, so as to increase the amount of goods in the trailer.

[0045] It should be noted that the present application does not limit the structure of the fastener, as long as it can fix the hitch assembly 16 on the frame 11.

[0046] As shown, Figure 2 , Figure 3 and Figure 4As shown, the description takes the vehicle frame 11 and the towing assembly 16 with a fixing hole 1631 as an example. The vehicle frame 11 includes a main frame 111 extending along the length of the vehicle frame 11 and a mounting bracket 112 mounted on the main frame 111. Fasteners 161 pass through the fixing hole 1631 and are connected to the mounting bracket 112. With the above arrangement, the towing assembly 16 is fixed on the mounting bracket 112. The separate arrangement of the mounting bracket 112 and the main frame 111 allows the structure of the mounting bracket 112 to be adaptively adjusted according to the shape of the towing assembly 16, thereby improving the assembly efficiency of the towing assembly 16 and the mounting bracket 112. At the same time, the mounting bracket 112, which is separate from the main frame 111, allows the mounting bracket 112 to be made of a material with greater rigidity than the main frame 111, thereby improving the structural strength of the mounting bracket 112 when connected to the towing assembly 16, and improving the stability of the all-terrain vehicle 100 when towing the trailer. In this application, the mounting bracket 112 is connected to the main frame 111 by welding.

[0047] It should be noted that the connection method between the mounting bracket 112 and the main frame 111 in this application is not limited, as long as the connection strength requirements between the mounting bracket 112 and the main frame 111 are met.

[0048] Mounting bracket 112 includes a support member 1121 extending substantially along the width direction of the vehicle frame 11 and a mounting portion 110. The mounting portion 110 is a mounting sleeve 1122 that passes through the support member 1121 along the height direction of the vehicle frame 11. The mounting sleeve 1122 is connected to the support member 1121 and is fitted onto a connector 163. A fastener 161 passes through the mounting sleeve 1122 and a fixing hole 1631. This configuration improves the stability of the tow truck assembly 16 when connected to the vehicle frame 11.

[0049] In some embodiments, the support 1121 can be a flat sheet structure, which allows the mounting bracket 112 to withstand the force exerted by the towing assembly 16 when towing the trailer, and also reduces the weight of the mounting bracket 112 itself, thereby reducing the cost of the mounting bracket 112.

[0050] It should be stated that the structure of the support member 1121 and the mounting sleeve 1122 in this application is not limited, as long as the structural strength of the support member 1121 and the mounting sleeve 1122 is met.

[0051] like Figure 5 As shown, in one embodiment, the connector 163 is provided with a plurality of fixing grooves 1634 of different heights. The towing assembly 16 also includes a locking member 164, which passes through the mounting part 110 and abuts against the bottom of the fixing grooves 1634 of different heights to adjust the height of the connector 163 relative to the frame 11.

[0052] Through the above arrangement, the connecting piece 163 can be fixed at different heights according to actual trailer requirements, so that the hitch assembly 16 can be compatible with different sizes of trailers, thereby improving the compatibility of the all-terrain vehicle 100. Meanwhile, the fixing groove 1634 is provided on the connecting piece 163, which can avoid the integrity of the connecting piece 163 being damaged compared to the fixing hole 1631, so that the stress distribution on the connecting piece 163 is more uniform when the connecting piece 163 connects the trailer, thereby improving the structural strength of the connecting piece 163, and further improving the stability of the all-terrain vehicle 100 when towing the trailer.

[0053] In the present embodiment, a plurality of fixing grooves 1634 of different heights can be provided on both sides of the connecting portion 1632, so that when it is necessary to fix the connecting piece 163 on the vehicle frame 11, the locking piece 164 can be arranged on one side of the connecting portion 1632 to fix the connecting piece 163 on the vehicle frame 11, thereby improving the efficiency of installing the connecting piece 163 on the vehicle frame 11, and improving the efficiency of the all-terrain vehicle 100 when towing the trailer; or, the locking piece 164 can be arranged on both sides of the connecting portion 1632 to fix the connecting piece 163 on the vehicle frame 11, thereby improving the fastening degree of installing the connecting piece 163 on the vehicle frame 11, and improving the stability of the all-terrain vehicle 100 when towing the trailer.

[0054] It should be noted that the present application does not limit the position and number of the fixing grooves 1634 on the connecting piece 163, as long as the connecting piece 163 can be fixed on the vehicle frame 11.

[0055] As shown in Figure 6 As an optional implementation, each fixing groove 1634 can be a circular groove, and adjacent two fixing grooves 1634 are communicated along the height direction of the vehicle frame 11. Through the above arrangement, the distance between the centers of adjacent fixing grooves 1634 is small, that is, the arrangement of adjacent fixing grooves 1634 is more compact, thereby improving the selectivity of the height of the connecting piece 163 relative to the vehicle frame 11, and improving the adaptability of the all-terrain vehicle 100.

[0056] It should be noted that the present application does not limit the shape or structure of the fixing groove 1634, as long as the fixing groove 1634 can be adapted to lock the connecting piece 163.

[0057] As shown in Figure 7As shown, as an implementation, the all-terrain vehicle 100 comprises a driving assembly 17, the driving assembly 17 is installed on the frame 11, and the driving assembly 17 is in driving connection with the connecting piece 163 to drive the connecting piece 163 to move along the height direction of the frame 11. Through the above arrangement, the driving assembly 17 can continuously drive the connecting piece 163 to move along the height direction of the frame 11, so that the connecting piece 163 can be fixed at any height relative to the frame 11, thereby further improving the accuracy of the height adjustment of the connecting piece 163 to improve the adaptability of the all-terrain vehicle 100.

[0058] As an optional implementation, the driving assembly 17 can comprise a hydraulic rod 171 and a hydraulic cylinder 172, the hydraulic cylinder 172 is used to drive the hydraulic rod 171, the hydraulic cylinder 172 is installed on the frame 11, and the hydraulic rod 171 is connected with the connecting piece 163. Through the above arrangement, within the controllable telescopic range, the hydraulic rod 171 can be telescoped to any length under the control of the hydraulic cylinder 172, and the hydraulic rod 171 is connected with the connecting piece 163, so that the connecting piece 163 can be fixed at any height, so that the connecting piece 163 can be connected with vehicles of different heights, thereby improving the adaptability of the all-terrain vehicle 100.

[0059] In addition, the connecting portion 1632 can be a hollow structure, so that the hydraulic rod 171 can also be arranged in the connecting portion 1632, so that the hydraulic rod 171 is at least partially located in the connecting portion 1632. Through the above arrangement, the occupied space when the hydraulic rod 171 is connected with the connecting piece 163 can be reduced, so that the space occupancy rate of the all-terrain vehicle 100 can be reduced.

[0060] As an optional implementation, the driving assembly 17 can further comprise a driving motor, a lead screw and a driving nut, the driving motor is in driving connection with the lead screw, and the driving nut is sleeved on the lead screw and is fixedly connected with the connecting piece 163. In the present application, the driving nut can be connected with the connecting portion 1632 away from the extension portion 1633. Through the above arrangement, the lead screw rotates under the driving of the driving motor, so that the driving nut moves on the lead screw along the height direction of the frame 11, so that the height of the connecting piece 163 can be adjusted, so that the all-terrain vehicle 100 can be compatible with different models of trailers, thereby improving the compatibility of the all-terrain vehicle 100. In addition, through the control of the driving motor, the height of the connecting piece 163 can be automatically adjusted. At the same time, the lead screw has the characteristics of small distance adjustment, so within the adjustable range of the lead screw, the connecting piece 163 can be adjusted to any height using the lead screw, so that the connecting piece 163 can be connected with vehicles of different heights, thereby improving the adaptability of the all-terrain vehicle 100.

[0061] In addition, the connecting portion 1632 can be a hollow structure, so that the drive nut can be arranged in the connecting portion 1632, and the lead screw is at least partially located in the connecting portion 1632. Through the above arrangement, the space occupied by the lead screw when connected with the connecting piece 163 can be reduced, so that the space occupancy rate of the all-terrain vehicle 100 can be reduced.

[0062] It should be noted that the structure of the drive assembly 17 and the connection mode of the drive assembly 17 and the connecting piece 163 are not limited in the present application, and only need to meet the requirement that the connecting piece 163 can move.

[0063] As shown in Figure 8 and Figure 9 , as an embodiment, a reference surface 101 perpendicular to the height direction of the vehicle frame 11 is defined, a preset straight line 102 is defined, the included angle between the preset straight line 102 and the reference surface 101 is an acute angle, the connecting piece 163 extends substantially along the direction of the preset straight line 102, and the connecting piece 163 can move along the direction of the preset straight line 102.

[0064] As shown in Figure 8 , the included angle between the preset straight line 102 and the reference surface 101 opens forward, at this time, when the connecting piece 163 moves along the direction of the preset straight line 102, the height of the connecting piece 163 can be adjusted, and at the same time, the distance between the connecting piece 163 and the vehicle frame 11 along the length direction of the vehicle frame 11 can be reduced; or the height of the connecting piece 163 can be reduced, and at the same time, the distance between the connecting piece 163 and the vehicle frame 11 along the length direction of the vehicle frame 11 can be increased.

[0065] As shown in Figure 9 , the included angle between the preset straight line 102 and the reference surface 101 opens backward, at this time, when the connecting piece 163 moves along the direction of the preset straight line 102, the height of the connecting piece 163 can be adjusted, and at the same time, the distance between the connecting piece 163 and the vehicle frame 11 along the length direction of the vehicle frame 11 can be increased; or the height of the connecting piece 163 can be reduced, and at the same time, the distance between the connecting piece 163 and the vehicle frame 11 along the length direction of the vehicle frame 11 can be reduced.

[0066] Through the above arrangement, when the connecting piece 163 extends along the direction of the preset straight line 102, the height of the connecting piece 163 can be adjusted, and at the same time, the distance between the connecting piece 163 and the vehicle frame 11 along the length direction of the vehicle frame 11 can be adjusted, so as to meet the different trailer requirements of the all-terrain vehicle 100, and improve the adaptability of the towed assembly 16.

[0067] As shown in Figure 10As shown, a reference surface 101 perpendicular to the height direction of the vehicle frame 11 is defined, and the reference surface 101 passes through the lowermost end of the walking system 13. The minimum distance D between the trailer part 162 and the reference surface 101 in the height direction of the vehicle frame 11 is in the range of 300mm to 600mm. Specifically, the minimum distance D between the trailer part 162 and the reference surface 101 in the height direction of the vehicle frame 11 is in the range of 300mm to 550mm. More specifically, the minimum distance D between the trailer part 162 and the reference surface 101 in the height direction of the vehicle frame 11 is in the range of 308mm to 510mm. Through the above arrangement, it can be avoided that the minimum distance D is too large, so that the trailer part 162 is arranged too high, so that when the trailer part 162 connects the trailer, a large inclination angle will not occur, so as to avoid the goods on the trailer from tilting and sliding, thereby improving the stability of the all-terrain vehicle when carrying goods. In addition, it can also be avoided that the minimum distance D is too small, so that the trailer part 162 is arranged too low, so that when the trailer part 162 drags the trailer, the collision with the ground is reduced, thereby improving the safety and passability of the all-terrain vehicle when dragging the trailer through the trailer part 162.

[0068] It should be understood that, for those skilled in the art, improvements or changes can be made according to the above description, and all these improvements and changes shall belong to the protection scope of the claims attached to this application.

Claims

1. An all-terrain vehicle, comprising: a frame; a walking system, which is at least partially located below the frame; a suspension system, which connects the walking system to the frame; a power assembly, which is supported by the frame and is in driving connection with the walking system; a towing assembly, which is located at the rear of the frame and is connected with the frame; characterized in that, the towing assembly comprises a towing part and a connecting part for towing, the towing part and the connecting part are fixedly connected or integrally formed, the frame comprises a mounting portion, the connecting part is movably connected with the frame through the mounting portion, the connecting part has a first limit position and a second limit position relative to the frame, and the height of the connecting part relative to the frame is adjustable between the first limit position and the second limit position.

2. The all-terrain vehicle according to claim 1, characterized in that, the connecting part is provided with a plurality of fixed holes with different heights, and the towing assembly further comprises a fastener, the fastener is arranged in the fixed hole with different height and is connected with the mounting portion, so as to adjust the height of the connecting part relative to the frame.

3. The all-terrain vehicle according to claim 2, characterized in that, the fastener is a pin shaft, the towing assembly further comprises a split pin, the pin shaft is arranged in the fixed hole and the mounting portion and is fixed with the split pin; or, the fastener is a bolt, the towing assembly further comprises a nut, the bolt is arranged in the fixed hole and the mounting portion and is fixed with the nut.

4. The all-terrain vehicle according to claim 2, characterized in that, the frame comprises a main frame and a mounting rack mounted on the main frame, the fastener is arranged in the fixed hole and is connected with the mounting rack; the mounting rack comprises a support member extending substantially along the width direction of the frame and the mounting portion, the mounting portion is a mounting sleeve arranged in the support member along the height direction of the frame, the mounting sleeve is connected with the support member, the mounting sleeve is sleeved on the connecting part, and the fastener is arranged in the mounting sleeve and the fixed hole.

5. The all-terrain vehicle according to claim 1, characterized in that, a plurality of fixed grooves with different heights are formed on the connecting part, and the towing assembly further comprises a locking member, the locking member is arranged in the mounting portion and abuts against the groove bottom of the fixed groove with different height, so as to adjust the height of the connecting part relative to the frame.

6. The all-terrain vehicle according to claim 5, characterized in that, each fixed groove is a circular groove, and adjacent two fixed grooves are communicated along the height direction of the frame.

7. The all-terrain vehicle according to claim 1, characterized in that, the all-terrain vehicle comprises a driving assembly, the driving assembly is mounted on the frame, and the driving assembly is in driving connection with the connecting part, so as to drive the connecting part to move along the height direction of the frame.

8. The all-terrain vehicle according to claim 7, characterized in that, The driving assembly comprises a hydraulic rod and a hydraulic cylinder for driving the hydraulic rod, the hydraulic cylinder is mounted on the frame, and the hydraulic rod is connected with the connecting piece; or the driving assembly comprises a driving motor, a lead screw and a driving nut, the driving motor is in transmission connection with the lead screw, the driving nut is sleeved on the lead screw and is fixedly connected with the connecting piece.

9. The all-terrain vehicle of claim 1, wherein, A reference plane perpendicular to the height direction of the frame is defined, a preset straight line is defined, the preset straight line forms an acute angle with the reference plane, the connecting piece extends substantially along the preset straight line, and the connecting piece moves along the preset straight line relative to the frame.

10. The all-terrain vehicle of claim 1, wherein, A reference plane perpendicular to the height direction of the frame is defined, the reference plane passes through the lowermost end of the running system, and the minimum distance between the trailer and the reference plane in the height direction of the frame ranges from 300 mm to 600 mm.

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