All-terrain vehicle

Abstract

The utility model provides an all-terrain vehicle which comprises a vehicle frame, an engine and a main driving seat cushion, the engine and the main driving seat cushion are both installed on the vehicle frame, and a longitudinal center plane is a virtual plane which extends in the vertical direction and coincides with the left center line and the right center line of the vehicle frame. The bottom plane is a virtual plane which is located below the frame, extends in the front-back direction and is perpendicular to the longitudinal center plane, the geometric center of the outer contour line of the projection of the main driving seat cushion on the bottom plane is a point A, and the symmetric point of the point A relative to the longitudinal center plane is a point B; the all-terrain vehicle further comprises a plurality of flexible connecting pieces, the engine is flexibly connected with the vehicle frame through the flexible connecting pieces, the projection centers of the flexible connecting pieces on the bottom plane are points T, all the points T are located behind the line segment AB, and at least one point T is distributed on each of the left side and the right side of the longitudinal center plane. In this way, the adverse effect of vibration of the engine on the main driver seat cushion can be reduced, and the riding comfort of passengers is better.

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 often used for field transportation, field rescue, field exploration, field construction and other purposes. The field terrain is complex, such as beaches, riverbeds, forest roads, streams, and harsh desert terrain. Therefore, the vehicle vibrates greatly and the driving comfort is low.

[0003] The vibration of the vehicle mainly comes from the vibration of the engine and the impact of the road surface transmitted to the vehicle body through the shock absorber. The subjective feeling of the vibration of the vehicle comes from the seat cushion, steering wheel and pedals. Therefore, it is very important to optimize the design so that the all-terrain vehicle has better shock absorption performance and improve driving comfort. Utility Model Content

[0004] In order to solve the above problems, an embodiment of the present application provides an all-terrain vehicle to at least partially solve the above problems.

[0005] The present application provides an all-terrain vehicle, which includes a frame, an engine and a main driver's seat cushion, wherein the engine and the main driver's seat cushion are both mounted on the frame, a longitudinal center plane is a virtual plane extending in the up-down direction and coinciding with the left-right center line of the frame, a bottom plane is a virtual plane extending in the front-back direction below the frame and perpendicular to the longitudinal center plane, a geometric center of an outer contour line of the main driver's seat cushion projected on the bottom plane is point A, and a symmetrical point of point A relative to the longitudinal center plane is point B; the all-terrain vehicle also includes a plurality of flexible connectors, the engine is flexibly connected to the frame through the flexible connectors, a projection center of the flexible connector on the bottom plane is point T, each point T is located behind the line segment AB, and at least one point T is distributed on the left and right sides of the longitudinal center plane.

[0006] Optionally, the frame includes a main frame and a rear sub-frame, the rear sub-frame is installed at the rear end of the main frame and is located above the main frame, the main driving seat is installed on the frame and is located above the main frame, and the all-terrain vehicle also includes a left rear wheel, a right rear wheel, a left rear shock absorber connected between the rear sub-frame and the left rear wheel, and a right rear shock absorber connected between the rear sub-frame and the right rear wheel; the projection centers of the connecting parts between the left rear shock absorber and the rear sub-frame on the bottom plane are respectively point M, and the projection centers of the connecting parts between the right rear shock absorber and the rear sub-frame on the bottom plane are respectively point N; in the In the bottom plane, line segment BC intersects the extension line of line segment MN at point C, line segment AD intersects the extension line of line segment MN at point D, line segment AB intersects the longitudinal center plane at point F, and line segment MN intersects the longitudinal center plane at point K; the projection of the crankshaft center line of the engine on the bottom plane intersects the longitudinal center plane at point E, intersects with line segment AD at point H, and intersects with line segment BC at point G; at least one point T is located in the rectangular area BFEG, at least one point T is located in the rectangular area CGEK, at least one point T is located in the rectangular area AFEH, and at least one point T is located in the rectangular area DHEK.

[0007] Optionally, the all-terrain vehicle also includes a first bolt and a first nut, the flexible connector includes a first elastic body, a first connector and a second connector, the first connector and the second connector are respectively connected to opposite sides of the first elastic body, the connecting part of the engine includes a first connecting through hole, the two flexible connectors are respectively located at both ends of the first connecting through hole, the first bolt passes through the first connector, the first connecting through hole and the first connector of one flexible connector in sequence and then is connected to the first nut, the second connectors of the two flexible connectors are respectively connected to the frame, and the axis of the first connecting through hole is parallel to the bottom plane.

[0008] Optionally, the all-terrain vehicle also includes a second bolt and a second nut, the connecting part of the engine includes a second connecting through hole, the frame includes a third connecting through hole, the flexible connecting member includes a supporting cylinder and a second elastic body, the second elastic body is sleeved outside the supporting cylinder, the flexible connecting member passes through the second connecting through hole and the third connecting through hole, the second elastic body is located in the second connecting through hole and the third connecting through hole, and the second bolt passes through the inner hole of the supporting cylinder and is connected to the second nut.

[0009] Optionally, the all-terrain vehicle also includes a third bolt and a third nut, the flexible connector includes a base plate and a third elastic body connected to each other, the third elastic body includes a fourth connecting through hole, the third bolt passes through the frame and the fourth connecting through hole and is connected to the third nut, and the base plate and the engine are detachably connected.

[0010] Optionally, the all-terrain vehicle also includes a left rear swing arm assembly, a right rear swing arm assembly and a rear stabilizer bar, the inner end of the left rear swing arm assembly is pivotally connected to the rear sub-frame, and the outer end is rotationally connected to the left rear wheel, the inner end of the right rear swing arm assembly is pivotally connected to the rear sub-frame, and the outer end is rotationally connected to the right rear wheel; the rear stabilizer bar is C-shaped and located behind the engine, the C-shaped opening of the rear stabilizer bar faces rearward, the middle part of the rear stabilizer bar is rotationally connected to the main frame, and the left and right ends of the rear stabilizer bar are respectively connected to the left rear swing arm assembly and the right rear swing arm assembly.

[0011] Optionally, the left rear swing arm assembly includes a left rear upper swing arm and a left rear lower swing arm, the right rear swing arm assembly includes a right rear upper swing arm and a right rear lower swing arm, and the all-terrain vehicle also includes a left rear wheel axle mounting seat and a right rear wheel axle mounting seat; the left rear wheel is mounted on the left rear wheel axle mounting seat, the upper end of the left rear wheel axle mounting seat is rotationally connected to the left rear upper swing arm via a ball pin, and the lower end is rotationally connected to the left rear lower swing arm via a ball pin; the right rear wheel is mounted on the right rear wheel axle mounting seat, the upper end of the right rear wheel axle mounting seat is rotationally connected to the right rear upper swing arm via a ball pin, and the lower end is rotationally connected to the right rear lower swing arm via a ball pin.

[0012] Optionally, the all-terrain vehicle also includes a left rear shock absorber and a right rear shock absorber, the upper end of the left rear shock absorber is connected to the rear sub-frame, and the lower end is connected to the left rear swing arm assembly; the upper end of the right rear shock absorber is connected to the rear sub-frame, and the lower end is connected to the right rear swing arm assembly.

[0013] Optionally, the frame also includes a front sub-frame, which is installed at the front end of the main frame and located above the main frame; the all-terrain vehicle also includes a left front rocker arm assembly, a right front rocker arm assembly, a left front wheel, a right front wheel and a front stabilizer bar, the inner end of the left front rocker arm assembly is pivotally connected to the front sub-frame, and the outer end is rotationally connected to the left front wheel, the inner end of the right front rocker arm assembly is pivotally connected to the front sub-frame, and the outer end is rotationally connected to the right front wheel; the front stabilizer bar is C-shaped and located in front of the front sub-frame, the C-shaped opening of the front stabilizer bar faces rearward, the middle part of the front stabilizer bar is rotationally connected to the front sub-frame, and the left and right ends of the front stabilizer bar are respectively connected to the left front rocker arm assembly and the right front rocker arm assembly.

[0014] Optionally, the left front rocker arm assembly includes a left front upper rocker arm and a left front lower rocker arm, the right front rocker arm assembly includes a right front upper rocker arm and a right front lower rocker arm, and the all-terrain vehicle also includes a left steering knuckle and a right steering knuckle; the left front wheel is mounted on the left steering knuckle, the upper end of the left steering knuckle is rotationally connected to the left front upper rocker arm via a ball pin, and the lower end is rotationally connected to the left front lower rocker arm via a ball pin; the right front wheel is mounted on the left steering knuckle, the upper end of the right steering knuckle is rotationally connected to the right front upper rocker arm via a ball pin, and the lower end is rotationally connected to the right front lower rocker arm via a ball pin.

[0015] Based on the above-mentioned all-terrain vehicle provided by the present application, by making the projection center point T of the flexible connecting member on the bottom plane located behind the line segment AB, the engine can be kept away from the main driving seat, thereby reducing the adverse effects of the engine vibration on the driver; and by having at least one point T distributed on the left and right sides of the longitudinal center plane, the engine vibration can be distributed more evenly on the frame, thereby avoiding the situation where the vibration is extremely strong in a certain place, making the passengers feel more comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are intended only to illustrate and explain the present application, and do not limit the scope of the present application.

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

[0018] Figure 2 1 is a top view of an all-terrain vehicle provided by an exemplary embodiment of the present application, wherein a partial structure is shown.

[0019] Figure 3 It is a schematic diagram of a connection method between an engine and a frame in an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0020] Figure 4 It is a schematic diagram of another connection method between an engine and a frame in an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0021] Figure 5 It is a schematic diagram of yet another connection method between an engine and a frame in an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0022] Figure 6 It is a partial structural schematic diagram of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0023] Figure 7 It is a schematic diagram of the relative positions of a seat and a front drive shaft in an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0024] Figure 8 is a front view of a support for an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0025] Fig. 9 1 is a top view of an all-terrain vehicle provided by an exemplary embodiment of the present application, wherein a partial structure is shown.

[0026] Fig.10 It is a partial structural schematic diagram of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0027] Fig.11 is based on Fig.10 Rear view of.

[0028] Fig.12 is based on Fig.10 Front view of.

[0029] Fig.13 It is a schematic diagram of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0030] Fig.14 is based on Fig.13 Top view of the .

[0031] Fig.15 is based on Fig.13 Left view of .

[0032] Fig.16 It is a schematic diagram of a partial structure of an all-terrain vehicle provided by an exemplary embodiment of the present application.

[0033] Fig.17 is based on Fig.16 Partial left view of .

[0034] Reference numerals:

[0035] 10-frame, 11-front sub-frame, 12-rear sub-frame; 13-main frame, 131-first crossbar, 132-second crossbar, 133-longitudinal beam,

[0036] 14-seat, 141-driver seat cushion, 142-passenger seat cushion, 143-support, 1431-first leg, 1432-second leg;

[0037] 201-left front wheel, 202-right front wheel, 203-left rear wheel, 204-right rear wheel,

[0038] 21-engine, 22-front axle, 23-rear axle, 24-front drive shaft, 25-rear drive shaft, 261-left front constant velocity drive shaft,

[0039] 262-right front constant velocity drive shaft, 271-left rear constant velocity drive shaft, 272-right rear constant velocity drive shaft;

[0040] 31-Front stabilizer bar, 32-Rear stabilizer bar,

[0041] 41-front connecting structure, 411-front mounting seat, 412-front buffer,

[0042] 42-rear connecting structure, 421-rear mounting seat, 422-rear buffer,

[0043] 51-left front rocker arm assembly, 511-left front upper rocker arm, 512-left front lower rocker arm,

[0044] 52-right front rocker arm assembly, 521-right front upper rocker arm, 522-right front lower rocker arm,

[0045] 53-left rear rocker arm assembly, 531-left rear upper rocker arm, 532-left rear lower rocker arm,

[0046] 54-right rear rocker arm assembly, 541-right rear upper rocker arm, 542-right rear lower rocker arm,

[0047] 61-left front shock absorber, 62-right front shock absorber, 63-left rear shock absorber, 64-right rear shock absorber;

[0048] 71-left front ball pin assembly, 72-right front ball pin assembly, 73-left rear ball pin assembly, 74-right rear ball pin assembly;

[0049] 81-left steering knuckle, 82-right steering knuckle, 83-left rear wheel axle mounting seat, 84-right rear wheel axle mounting seat;

[0050] 90-flexible connecting member, 911-first elastic body, 912-first connecting body, 913-second connecting body,

[0051] 921-support cylinder, 922-second elastic body, 931-base plate, 932-third elastic body,

[0052] 151 - first bolt, 152 - first nut, 161 - second bolt, 162 - second nut, 171 - third bolt;

[0053] P-longitudinal center plane, Q-bottom plane. DETAILED DESCRIPTION

[0054] In order to have a clearer understanding of the technical features, purposes and effects of the embodiments of the present application, the specific implementation methods of the embodiments of the present application are now described with reference to the accompanying drawings.

[0055] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0056] In order to simplify the drawings, only the parts related to the present application are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one or more of the parts with the same structure or function are schematically drawn or only one or more of them are marked.

[0057] The present application provides an all-terrain vehicle, referring to Figure 1 and Figure 2 The all-terrain vehicle includes a frame 10, an engine 21 and a main driver's seat 141, the engine 21 and the main driver's seat 141 are both installed on the frame 10, the longitudinal center plane P is a virtual plane extending in the up-down direction and coinciding with the left-right center line of the frame 10, the bottom plane Q is a virtual plane located below the frame 10 and extending in the front-back direction and perpendicular to the longitudinal center plane P, the geometric center of the outer contour line of the main driver's seat 141 projected on the bottom plane Q is point A, and the symmetrical point of point A relative to the longitudinal center plane P is point B; the all-terrain vehicle also includes a plurality of flexible connectors 90, the engine 21 is flexibly connected to the frame 10 through the flexible connectors 90, the projection center of the flexible connector 90 on the bottom plane Q is point T, each point T is located behind the line segment AB, and there is at least one point T distributed on the left and right sides of the longitudinal center plane P respectively.

[0058] Through the above technical solution, by making the projection center point T of the flexible connecting member 90 on the bottom plane Q located behind the line segment AB, the engine 21 can be kept away from the main driver's seat cushion 141, thereby reducing the adverse effects of the vibration of the engine 21 on the driver; and by making at least one point T distributed on the left and right sides of the longitudinal center plane P, the vibration of the engine 21 can be distributed more evenly on the frame 10, which can avoid the situation where the vibration is extremely strong in one place, making the passengers feel more comfortable.

[0059] In one possible implementation, reference Figure 1 and Figure 2The frame 10 includes a main frame 13 and a rear sub-frame 12, the rear sub-frame 12 is installed at the rear end of the main frame 13 and is located above the main frame 13, the main driving seat 141 is installed on the frame 10 and is located above the main frame 13, the all-terrain vehicle also includes a left rear wheel 203, a right rear wheel 204, a left rear shock absorber 63 connected between the rear sub-frame 12 and the left rear wheel 203, and a right rear shock absorber 64 connected between the rear sub-frame 12 and the right rear wheel 204; the projection centers of the connection parts between the left rear shock absorber 63 and the rear sub-frame 12 on the bottom plane Q are respectively points M, and the connection parts between the right rear shock absorber 64 and the rear sub-frame 12 are respectively at points M. The projection centers on the bottom plane Q are point N; in the bottom plane Q, line segment BC intersects the extension line of line segment MN at point C, line segment AD intersects the extension line of line segment MN at point D, line segment AB intersects the longitudinal center plane P at point F, and line segment MN intersects the longitudinal center plane P at point K; the projection of the crankshaft center line of the engine 21 on the bottom plane Q intersects with the longitudinal center plane P at point E, intersects with line segment AD at point H, and intersects with line segment BC at point G; at least one point T is in the rectangular area BFEG, at least one point T is located in the rectangular area CGEK, at least one point T is located in the rectangular area AFEH, and at least one point T is located in the rectangular area DHEK.

[0060] Through the above technical solution, the present technical solution divides the frame 10 into four different areas by setting the position of the crankshaft center of the engine 21, the position of the connection part of the rear shock absorber, and the position of the main driver's seat cushion 141, and the connection part of the engine 21 is set in each of the four areas, which is conducive to achieving the purpose of reducing vehicle vibration and improving driving comfort. In addition, the flexible connection mode between the engine 21 and the frame 10 can also reduce the vibration of the whole vehicle and improve driving comfort.

[0061] It should be clarified that the "up" and "down" defined in this application are up and down in the direction of gravity, and the "front and rear" are defined based on the front and rear of the all-terrain vehicle, with the front in front and the rear in the rear, and the horizontal plane is perpendicular to the up and down direction. The "left and right" defined in this application are defined based on the left and right sides of the driver when the driver is driving the vehicle. The bottom plane Q is perpendicular to the longitudinal center plane P, and the longitudinal center plane P is parallel to the direction of gravity.

[0062] In a possible implementation, the all-terrain vehicle includes a flexible connector 90, and opposite sides of the flexible connector 90 are respectively connected to the engine 21 and the frame 10. Through this technical solution, the engine 21 can be suspended on the frame 10 by using the flexible connector 90, thereby reducing the adverse effects of the vibration of the engine 21 on the driver and passengers.

[0063] refer to Figure 3 In one example, the all-terrain vehicle further includes a first bolt 151 and a first nut 152, the flexible connector 90 includes a first elastic body 911, a first connector 912 and a second connector 913, the first connector 912 and the second connector 913 are respectively connected to opposite sides of the first elastic body 911, the connecting portion of the engine 21 includes a first connecting through hole, two flexible connectors 90 are respectively located at both ends of the first connecting through hole, the first bolt 151 passes through the first connector 912, the first connecting through hole and the first connector 912 in sequence and is connected to the first nut 152, the second connectors 913 of the two flexible connectors 90 are respectively connected to the frame 10, and the axis of the first connecting through hole is parallel to the bottom plane Q. In this way, each connecting portion of the engine 21 is suspended and connected to the frame 10 through two flexible connectors 90, thereby reducing the adverse effects of the vibration of the engine 21 on the driver and passengers. In addition, the second connector 913 can be detachably connected to the frame 10 through bolts and nuts that cooperate with each other.

[0064] refer to Figure 4 In another example, the all-terrain vehicle further includes a second bolt 161 and a second nut 162, the connection portion of the engine 21 includes a second connection through hole, the frame 10 includes a third connection through hole, the flexible connector 90 includes a support cylinder 921 and a second elastic body 922, the second elastic body 922 is sleeved outside the support cylinder 921, the flexible connector 90 passes through the second connection through hole and the third connection through hole, the second elastic body 922 is located in the second connection through hole and the third connection through hole, and the second bolt 161 passes through the inner hole of the support cylinder 921 and is connected to the second nut 162. In this way, the second elastic body 922 can play the role of elastic buffer between the engine 21 and the frame 10, thereby reducing the adverse effects of the vibration of the engine 21 on the driver and passengers. In addition, in an example, the frame 10 may include a frame and a U-shaped card, and after the U-shaped card is detachably connected to the surface of the frame, a third connection through hole can be formed between the groove of the U-shaped card and the surface of the frame. In this way, the flexible connector 90 can be passed through the second connection through hole first, and then the U-shaped card can be detachably connected to the surface of the frame, so that the flexible connector 90 passes through the second connection through hole and the third connection through hole, which is convenient for disassembly and installation.

[0065] refer to Figure 5In the third example, the all-terrain vehicle further includes a third bolt 171 and a third nut, the flexible connector 90 includes a base plate 931 and a third elastic body 932 connected to each other, the third elastic body 932 includes a fourth connecting through hole, the third bolt 171 passes through the frame 10 and the fourth connecting through hole and is connected to the third nut, and the base plate 931 and the engine 21 are detachably connected. In this way, the connection between the engine 21 and the frame 10 is achieved through the third elastic body 932, and the third elastic body 932 can play the role of elastic buffer between the engine 21 and the frame 10, thereby reducing the adverse effects of the vibration of the engine 21 on the driver and passengers. In addition, the opposite sides of the base plate 931 can be detachably connected to the engine 21 through the fourth bolt, and of course the fourth nut is used in conjunction with the fourth bolt.

[0066] refer to Figure 1 In a possible embodiment, the all-terrain vehicle further includes a seat 14 in the cockpit, the seat 14 is mounted on the main frame 13 and is located above the main frame 13, and the engine 21 is located behind the seat 14. Through this technical solution, when the driver sits on the seat 14 to drive the vehicle, since the engine 21 is located behind the seat 14, the engine 21 can reduce the adverse effects of the heat generated by the engine 21 on the driver on the main driving seat 141, thereby improving the riding comfort of the driver.

[0067] refer to Figure 6 , Figure 7 , Figure 8 and Fig. 9 The all-terrain vehicle includes a front transmission shaft 25 connected between the engine 21 and the front axle 22, and also includes a rear transmission shaft 25 connected between the engine 21 and the rear axle 23. The seat 14 includes a main driving seat cushion 141, a co-pilot seat cushion 142 and a support 143. The main driving seat cushion 141 and the co-pilot seat cushion 142 are both installed on the support 143. The support 143 includes a first leg 1431 and a second leg 1432 that are spaced apart in the left-right direction. The lower ends of the first leg 1431 and the second leg 1432 are both connected to the main frame 13. The first leg 1431 is located below the main driving seat cushion 141, and the second leg 1432 is located below the co-pilot seat cushion 142. The front transmission shaft 25 is located below the co-pilot seat cushion 142, and the front transmission shaft 25 is located between the first leg 1431 and the second leg 1432 in the left-right direction. Through this technical solution, legs are provided under the main driver's seat cushion 141 and the co-driver's seat cushion 142, which provide good stability and good riding comfort for the driver and passengers.

[0068] Specifically, the support 143 may also include a front crossbeam and a rear crossbeam both extending in the left-right direction, the front crossbeam being connected to the upper front side of the first leg 1431 and to the upper front side of the second leg 1432, the rear crossbeam being connected to the upper front side of the first leg 1431 and to the upper front side of the second leg 1432, the main driver's seat cushion 141 and the co-driver's seat cushion 142 being distributed in the left-right direction, the front end of the main driver's seat cushion 141 being connected to the front crossbeam, and the rear end being connected to the rear crossbeam; similarly, the front end of the co-driver's seat cushion 142 being connected to the front crossbeam, and the rear end being connected to the rear crossbeam.

[0069] For further reference, Figure 1 The main frame 13 includes a longitudinal beam 133, a first crossbar 131 and a second crossbar 132, the longitudinal beam 133 and the second crossbar 132 are vertically connected, the first crossbar 131 and the second crossbar 132 are both extended in the left-right direction, the first crossbar 131 and the second crossbar 132 are parallelly spaced and distributed in the front-back direction, and the two first crossbars 131 are respectively connected to the left and right sides of the longitudinal beam 133; the front end and the rear end of the first leg 1431 are respectively connected to the first crossbar 131 and the second crossbar 132, and the front end and the rear end of the second leg 1432 are respectively connected to the first crossbar 131 and the second crossbar 132. Through this technical solution, the support 143 can be stably installed on the main frame 13, thereby ensuring the riding comfort of the passengers.

[0070] refer to Figures 9 to 11 The all-terrain vehicle also includes a left rear swing arm assembly 53, a right rear swing arm assembly 54 and a rear stabilizer bar 32, wherein the inner end of the left rear swing arm assembly 53 is pivotally connected to the rear sub-frame 12, and the outer end is rotationally connected to the left rear wheel 203, the inner end of the right rear swing arm assembly 54 is pivotally connected to the rear sub-frame 12, and the outer end is rotationally connected to the right rear wheel 204; the rear stabilizer bar 32 is C-shaped and is located behind the engine 21, the C-shaped opening of the rear stabilizer bar 32 faces rearward, the middle part of the rear stabilizer bar 32 is rotationally connected to the main frame 13, and the left and right ends of the rear stabilizer bar 32 are respectively connected to the left rear swing arm assembly 53 and the right rear swing arm assembly 54. Through the above technical solution, the left rear swing arm assembly 53 can be used to transmit various forces acting on the left rear wheel 203 to the frame 10, while ensuring that the left rear wheel 203 can jump up and down and turn relative to the frame 10 within a limited range; similarly, the right rear swing arm assembly 54 can be used to transmit various forces acting on the right rear wheel 204 to the vehicle body, while ensuring that the right rear wheel 204 can jump up and down and turn relative to the frame 10 within a limited range, and the C-shaped rear stabilizer bar 32 connected to the two swing arm assemblies can improve the vehicle's anti-roll capability.

[0071] For further reference, Fig.10 and Fig.11 The left rear swing arm assembly 53 includes a left rear upper swing arm 531 and a left rear lower swing arm 532, the right rear swing arm assembly 54 includes a right rear upper swing arm 541 and a right rear lower swing arm 542, and the all-terrain vehicle also includes a left rear wheel axle mounting seat 83 and a right rear wheel axle mounting seat 84; the left rear wheel 203 is mounted on the left rear wheel axle mounting seat 83, the upper end of the left rear wheel axle mounting seat 83 is rotationally connected to the left rear upper swing arm 531 through a ball pin, and the lower end is rotationally connected to the left rear lower swing arm 532 through a ball pin; the right rear wheel 204 is mounted on the right rear wheel axle mounting seat 84, the upper end of the right rear wheel axle mounting seat 84 is rotationally connected to the right rear upper swing arm 541 through a ball pin, and the lower end is rotationally connected to the right rear lower swing arm 542 through a ball pin. In this way, the left rear wheel 203 can rotate within the limit range relative to the left rear swing arm assembly 53, and the right rear wheel 204 can rotate within the limit range relative to the right rear swing arm assembly 54.

[0072] In one example, reference Fig.11 The all-terrain vehicle may further include a left rear shock absorber 63 and a right rear shock absorber 64. The upper end of the left rear shock absorber 63 is connected to the rear sub-frame 12, and the lower end is connected to the left rear swing arm assembly 53, so as to play a role of buffering and shock absorption between the left rear wheel 203 and the frame 10. Similarly, the upper end of the right rear shock absorber 64 is connected to the rear sub-frame 12, and the lower end is connected to the right rear swing arm assembly 54, so as to play a role of buffering and shock absorption between the right rear wheel 204 and the frame 10. Specifically, the lower end of the left rear shock absorber 63 may be connected to the left rear lower swing arm 532, and the lower end of the right rear shock absorber 64 may be connected to the right rear lower swing arm 542.

[0073] In one example, reference Figures 13 to 15 The all-terrain vehicle further includes a left rear ball pin assembly 73 and a right rear ball pin assembly 74, one end of the left rear ball pin assembly 73 is rotatably connected to the rear stabilizer bar 32, and the other end is rotatably connected to the left rear swing arm assembly 53, and one end of the right rear ball pin assembly 74 is rotatably connected to the rear stabilizer bar 32, and the other end is rotatably connected to the right rear swing arm assembly 54. In this way, by setting the left rear ball pin assembly 73, the rotational connection between the rear stabilizer bar 32 and the left rear swing arm assembly 53 is realized; by setting the right rear ball pin assembly 74, the rotational connection between the rear stabilizer bar 32 and the right rear swing arm assembly 54 is realized. Specifically, the left rear ball pin assembly 73 can be connected between the left end of the rear stabilizer bar 32 and the left rear lower swing arm 532, and the right rear ball pin assembly 74 can be connected between the right end of the rear stabilizer bar 32 and the right rear lower swing arm 542. The ball pin assembly is a commonly used component in the art, so the specific structure thereof is not described in detail in this application.

[0074] refer to Fig.14The all-terrain vehicle includes two rear connection structures 42 spaced apart in the left-right direction, the rear stabilizer bar 32 is rotatably connected to the main frame 13 through the rear connection structures 42, and the rear connection structure 42 includes a rear buffer 422, which is sleeved on the rear stabilizer bar 32. Through this technical solution, the rear stabilizer bar 32 can be stably rotatably connected to the main frame 13 through the two rear connection structures 42, and the rear buffer 422 can play a buffering and shock-absorbing role at the rotation connection between the rear wheel and the main frame 13, and reduce noise.

[0075] In one example, reference Fig.14 and Fig.15 The rear connection structure 42 may include a rear mounting seat 421, which is mounted on the main frame 13 and has a through hole. The rear buffer 422 may be a rubber sleeve that can be sleeved on the rear stabilizer bar 32. The rubber sleeve can be sleeved on the rear stabilizer bar 32 in direct contact and penetrate the through hole of the rear mounting seat 421. In this way, the rear stabilizer bar 32 and the rear mounting seat 421 are rotatably connected, and the rubber sleeve that can play a buffering role is located between the rear stabilizer bar 32 and the rear mounting seat 421 to play a shock absorbing role.

[0076] In one example, reference Figure 7 , the projection of the engine 21 toward the bottom plane Q covers the middle portion of the projection of the rear stabilizer bar 32 toward the bottom plane Q. Thus, in the front-rear direction, the relative position between the rear stabilizer bar 32 and the engine 21 is relatively close, so that the all-terrain vehicle has a compact structure and good stability.

[0077] refer to Figure 1 The upper surface of the rear sub-frame 12 is higher than the upper end of the engine 21, and the all-terrain vehicle also includes a compartment installed above the rear sub-frame 12, and the compartment is used for storage.

[0078] refer to Figure 6 , Fig.10 and Fig.12The frame 10 also includes a front sub-frame 11, which is mounted at the front end of the main frame 13 and located above the main frame 13; the all-terrain vehicle also includes a left front rocker arm assembly 51, a right front rocker arm assembly 52, a left front wheel 201, a right front wheel 202 and a front stabilizer bar 31, the inner end of the left front rocker arm assembly 51 is pivotally connected to the front sub-frame 11, and the outer end is rotationally connected to the left front wheel 201, the inner end of the right front rocker arm assembly 52 is pivotally connected to the front sub-frame 11, and the outer end is rotationally connected to the right front wheel 202; the front stabilizer bar 31 is C-shaped and is located in front of the front sub-frame 11, the C-shaped opening of the front stabilizer bar 31 faces rearward, the middle part of the front stabilizer bar 31 is rotationally connected to the front sub-frame 11, and the left and right ends of the front stabilizer bar 31 are respectively connected to the left front rocker arm assembly 51 and the right front rocker arm assembly 52. Through the above technical solution, the left front rocker arm assembly 51 can be used to transmit various forces acting on the left front wheel 201 to the frame 10, while ensuring that the left front wheel 201 can jump up and down and turn relative to the frame 10 within a limited range; similarly, the right front rocker arm assembly 52 can be used to transmit various forces acting on the right front wheel 202 to the vehicle body, while ensuring that the right front wheel 202 can jump up and down and turn relative to the frame 10 within a limited range, and the C-shaped front stabilizer bar 31 connected to the two rocker arm assemblies can improve the vehicle's anti-roll capability.

[0079] For further reference, Fig.10 and Fig.12 The left front rocker arm assembly 51 includes a left front upper rocker arm 511 and a left front lower rocker arm 512, the right front rocker arm assembly 52 includes a right front upper rocker arm 521 and a right front lower rocker arm 522, and the all-terrain vehicle also includes a left steering knuckle 81 and a right steering knuckle 82; the left front wheel 201 is installed on the left steering knuckle 81, the upper end of the left steering knuckle 81 is rotationally connected to the left front upper rocker arm 511 through a ball pin, and the lower end is rotationally connected to the left front lower rocker arm 512 through a ball pin; the right front wheel 202 is installed on the left steering knuckle 81, the upper end of the right steering knuckle 82 is rotationally connected to the right front upper rocker arm 521 through a ball pin, and the lower end is rotationally connected to the right front lower rocker arm 522 through a ball pin. In this way, the left steering knuckle 81 can drive the left front wheel 201 to steer when driven by the steering system of the all-terrain vehicle, and at the same time, under the restriction of the left front rocker arm assembly 51, the left front wheel 201 can rotate within the limit range relative to the left front rocker arm assembly 51; similarly, the right steering knuckle 82 can drive the right front wheel 202 to steer when driven by the steering system of the all-terrain vehicle, and at the same time, under the restriction of the right front rocker arm assembly 52, the right front wheel 202 can rotate within the limit range relative to the left front rocker arm assembly 51.

[0080] refer to Fig.12In a possible implementation, the all-terrain vehicle may further include a left front shock absorber 61 and a right front shock absorber 62. The upper end of the left front shock absorber 61 is connected to the front sub-frame 11, and the lower end is connected to the left front rocker arm assembly 51, so as to play a role of buffering and shock absorption between the left front wheel 201 and the frame 10. Similarly, the upper end of the right front shock absorber 62 is connected to the front sub-frame 11, and the lower end is connected to the right front rocker arm assembly 52, so as to play a role of buffering and shock absorption between the right front wheel 202 and the frame 10. Specifically, the lower end of the left front shock absorber 61 may be connected to the left front upper rocker arm 511, and the lower end of the right front shock absorber 62 may be connected to the right front upper rocker arm 521.

[0081] In one example, reference Fig.12 , Fig.16 and Fig.17 The all-terrain vehicle further includes a left front ball pin assembly 71 and a right front ball pin assembly 72. One end of the left front ball pin assembly 71 is connected to the front stabilizer bar 31, and the other end is connected to the left front rocker arm assembly 51. One end of the right front ball pin assembly 72 is connected to the front stabilizer bar 31, and the other end is connected to the right front rocker arm assembly 52. ​​In this way, by setting the left front ball pin assembly 71, the rotation connection between the front stabilizer bar 31 and the left front rocker arm assembly 51 is realized; by setting the right front ball pin assembly 72, the rotation connection between the front stabilizer bar 31 and the right front rocker arm assembly 52 is realized. Specifically, the left rear ball pin assembly 73 can be connected between the left end of the rear stabilizer bar 32 and the left rear lower rocker arm 532, and the right rear ball pin assembly 74 can be connected between the right end of the rear stabilizer bar 32 and the right rear lower rocker arm 542.

[0082] refer to Fig.16 and Fig.17 The all-terrain vehicle includes two front connection structures 41 spaced apart in the left-right direction, the front stabilizer bar 31 is rotatably connected to the front sub-frame 11 through the front connection structures 41, and the front connection structure 41 includes a front buffer 412, which is sleeved on the front stabilizer bar 31. Through this technical solution, the front stabilizer bar 31 can be stably rotatably connected to the front sub-frame 11 through the two front connection structures 41, and the front buffer 412 can play a buffering and shock-absorbing role at the rotation connection between the front stabilizer bar 31 and the front sub-frame 11, and reduce noise.

[0083] In one example, the front connection structure 41 may include a front mounting seat 411, which is mounted on the front sub-frame 11 and has a through hole. The front buffer 412 may be a rubber sleeve that can be sleeved on the outside of the front stabilizer bar 31, and the rubber sleeve can be sleeved on the outside of the front stabilizer bar 31 in direct contact and penetrate the through hole of the front mounting seat 411. In this way, the front stabilizer bar 31 and the front mounting seat 411 are rotatably connected, and the rubber sleeve that can play a buffering role is located between the front stabilizer bar 31 and the front mounting seat 411 to play a shock absorbing role.

[0084] It should be noted that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present application. The terms used herein in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0085] It should be noted that although the specific embodiments of the present application are described in detail in conjunction with the accompanying drawings, this should not be construed as limiting the scope of protection of the present application. Within the scope described in the claims, various modifications and variations that can be made by those skilled in the art without creative work still fall within the scope of protection of the present application.

[0086] The examples of the embodiments of the present application are intended to concisely illustrate the technical features of the embodiments of the present application so that those skilled in the art can intuitively understand the technical features of the embodiments of the present application, and are not intended to be improper limitations of the embodiments of the present application.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An all-terrain vehicle, comprising a vehicle frame (10), an engine (21) and a main driver's seat cushion (141), wherein the engine (21) and the main driver's seat cushion (141) are both mounted on the vehicle frame (10), characterized in that: The longitudinal center plane (P) is a virtual plane extending in the up-down direction and coinciding with the left-right center line of the vehicle frame (10); the bottom plane (Q) is a virtual plane located below the vehicle frame (10) and extending in the front-back direction and perpendicular to the longitudinal center plane (P); the geometric center of the outer contour line of the main driving seat cushion (141) projected on the bottom plane (Q) is point A, and the symmetrical point of point A relative to the longitudinal center plane (P) is point B; The all-terrain vehicle further comprises a plurality of flexible connectors (90), the engine (21) being flexibly connected to the vehicle frame (10) via the flexible connectors (90), the projection center of the flexible connector (90) on the bottom plane (Q) being point T, each point T being located behind the line segment AB, and at least one point T being distributed on the left and right sides of the longitudinal center plane (P).

2. The all-terrain vehicle according to claim 1, characterized in that: The vehicle frame (10) comprises a main frame (13) and a rear sub-frame (12), wherein the rear sub-frame (12) is mounted at the rear end of the main frame (13) and is located above the main frame (13), and the main driving seat (141) is mounted on the vehicle frame (10) and is located above the main frame (13). The all-terrain vehicle also comprises a left rear wheel (203), a right rear wheel (204), a left rear shock absorber (63) connected between the rear sub-frame (12) and the left rear wheel (203), and a right rear shock absorber (64) connected between the rear sub-frame (12) and the right rear wheel (204); The projection centers of the connection parts between the left rear shock absorber (63) and the rear sub-frame (12) on the bottom plane (Q) are respectively points M, and the projection centers of the connection parts between the right rear shock absorber (64) and the rear sub-frame (12) on the bottom plane (Q) are respectively points N; In the bottom plane (Q), line segment BC intersects the extension of line segment MN at point C, line segment AD intersects the extension of line segment MN at point D, line segment AB intersects the longitudinal center plane (P) at point F, and line segment MN intersects the longitudinal center plane (P) at point K; The projection of the crankshaft centerline of the engine (21) on the bottom plane (Q) intersects with the longitudinal center plane (P) at point E, intersects with line segment AD at point H, and intersects with line segment BC at point G; At least one point T is located in the rectangular area BFEG, at least one point T is located in the rectangular area CGEK, at least one point T is located in the rectangular area AFEH, and at least one point T is located in the rectangular area DHEK.

3. The all-terrain vehicle according to claim 1, characterized in that: The all-terrain vehicle further comprises a first bolt (151) and a first nut (152); the flexible connector (90) comprises a first elastic body (911), a first connector (912) and a second connector (913); the first connector (912) and the second connector (913) are respectively connected to opposite sides of the first elastic body (911); the connecting portion of the engine (21) comprises a first connecting through hole; the two flexible connectors (90) are respectively located at two ends of the first connecting through hole; the first bolt (151) passes through the first connector (912) of one flexible connector (90), the first connecting through hole and the first connector (912) of another flexible connector (90) in sequence and is then connected to the first nut (152); the second connectors (913) of the two flexible connectors (90) are respectively connected to the vehicle frame (10); the axis of the first connecting through hole is parallel to the bottom plane (Q).

4. The all-terrain vehicle according to claim 1, characterized in that: The all-terrain vehicle further comprises a second bolt (161) and a second nut (162); the connecting portion of the engine (21) comprises a second connecting through hole; the vehicle frame (10) comprises a third connecting through hole; the flexible connector (90) comprises a supporting cylinder (921) and a second elastic body (922); the second elastic body (922) is sleeved outside the supporting cylinder (921); the flexible connector (90) passes through the second connecting through hole and the third connecting through hole; the second elastic body (922) is located in the second connecting through hole and the third connecting through hole; the second bolt (161) passes through the inner hole of the supporting cylinder (921) and is connected to the second nut (162).

5. The all-terrain vehicle according to claim 1, characterized in that: The all-terrain vehicle further comprises a third bolt (171) and a third nut, the flexible connector (90) comprises a base plate (931) and a third elastic body (932) which are connected to each other, the third elastic body (932) comprises a fourth connecting through hole, the third bolt (171) passes through the vehicle frame (10) and the fourth connecting through hole and is connected to the third nut, and the base plate (931) and the engine (21) are detachably connected.

6. The all-terrain vehicle according to claim 2, characterized in that: The all-terrain vehicle further comprises a left rear swing arm assembly (53), a right rear swing arm assembly (54) and a rear stabilizer bar (32); the inner end of the left rear swing arm assembly (53) is pivotally connected to the rear sub-frame (12), and the outer end is rotationally connected to the left rear wheel (203); the inner end of the right rear swing arm assembly (54) is pivotally connected to the rear sub-frame (12), and the outer end is rotationally connected to the right rear wheel (204); the rear stabilizer bar (32) is C-shaped and is located behind the engine (21); the C-shaped opening of the rear stabilizer bar (32) faces rearward; the middle part of the rear stabilizer bar (32) is rotationally connected to the main frame (13); the left and right ends of the rear stabilizer bar (32) are respectively connected to the left rear swing arm assembly (53) and the right rear swing arm assembly (54).

7. The all-terrain vehicle according to claim 6, characterized in that: The left rear swing arm assembly (53) comprises a left rear upper swing arm (531) and a left rear lower swing arm (532); the right rear swing arm assembly (54) comprises a right rear upper swing arm (541) and a right rear lower swing arm (542); the all-terrain vehicle further comprises a left rear wheel axle mounting seat (83) and a right rear wheel axle mounting seat (84); the left rear wheel (203) is mounted on the left rear wheel axle mounting seat (83); the upper end of the left rear wheel axle mounting seat (83) is rotatably connected to the left rear upper swing arm (531) through a ball pin, and the lower end is rotatably connected to the left rear lower swing arm (532) through a ball pin; the right rear wheel (204) is mounted on the right rear wheel axle mounting seat (84); the upper end of the right rear wheel axle mounting seat (84) is rotatably connected to the right rear upper swing arm (541) through a ball pin, and the lower end is rotatably connected to the right rear lower swing arm (542) through a ball pin.

8. The all-terrain vehicle according to claim 7, characterized in that: The all-terrain vehicle further comprises a left rear shock absorber (63) and a right rear shock absorber (64); the upper end of the left rear shock absorber (63) is connected to the rear sub-frame (12), and the lower end is connected to the left rear swing arm assembly (53); the upper end of the right rear shock absorber (64) is connected to the rear sub-frame (12), and the lower end is connected to the right rear swing arm assembly (54).

9. The all-terrain vehicle according to claim 2, characterized in that: The vehicle frame (10) further comprises a front sub-frame (11), wherein the front sub-frame (11) is mounted at the front end of the main frame (13) and is located above the main frame (13); The all-terrain vehicle further comprises a left front rocker arm assembly (51), a right front rocker arm assembly (52), a left front wheel (201), a right front wheel (202) and a front stabilizer bar (31); the inner end of the left front rocker arm assembly (51) is pivotally connected to the front sub-frame (11), and the outer end is rotationally connected to the left front wheel (201); the inner end of the right front rocker arm assembly (52) is pivotally connected to the front sub-frame (11), and the outer end is rotationally connected to the right front wheel (202); the front stabilizer bar (31) is C-shaped and is located in front of the front sub-frame (11); the C-shaped opening of the front stabilizer bar (31) faces rearward; the middle part of the front stabilizer bar (31) is rotationally connected to the front sub-frame (11); and the left and right ends of the front stabilizer bar (31) are respectively connected to the left front rocker arm assembly (51) and the right front rocker arm assembly (52).

10. The all-terrain vehicle according to claim 9, characterized in that: The left front rocker arm assembly (51) comprises a left front upper rocker arm (511) and a left front lower rocker arm (512); the right front rocker arm assembly (52) comprises a right front upper rocker arm (521) and a right front lower rocker arm (522); the all-terrain vehicle further comprises a left steering knuckle (81) and a right steering knuckle (82); the left front wheel (201) is mounted on the left steering knuckle (81); the upper end of the left steering knuckle (81) is rotatably connected to the left front upper rocker arm (511) via a ball pin, and the lower end is rotatably connected to the left front lower rocker arm (512) via a ball pin; the right front wheel (202) is mounted on the left steering knuckle (81); the upper end of the right steering knuckle (82) is rotatably connected to the right front upper rocker arm (521) via a ball pin, and the lower end is rotatably connected to the right front lower rocker arm (522) via a ball pin.

Images