CN112918208A

CN112918208A - All-terrain vehicle

Info

Publication number: CN112918208A
Application number: CN202110214831.9A
Authority: CN
Inventors: 不公告发明人
Original assignee: Segway Technology Co Ltd
Current assignee: Segway Technology Co Ltd
Priority date: 2021-02-25
Filing date: 2021-02-25
Publication date: 2021-06-08
Anticipated expiration: 2041-02-25
Also published as: CN112918208B

Abstract

The invention provides an all-terrain vehicle.A right rear suspension comprises a rocker arm, a wheel axle support, a first pull rod and a second pull rod; the front end of the rocker arm is connected to the frame through a first joint bearing; the wheel axle support is connected to the rear end of the rocker arm and is provided with a first mounting part and a second mounting part, the first mounting part is hinged with the rocker arm through a second joint bearing, and the second mounting part is hinged with the rocker arm through a third joint bearing; the inner ends of the first pull rod and the second pull rod are connected to the frame, and the outer ends of the first pull rod and the second pull rod are connected to the wheel axle support; the center points of the first joint bearing, the second joint bearing and the third joint bearing are collinear. The all-terrain vehicle provided by the embodiment of the invention always keeps the wheel positioning which meets the driving requirement of the vehicle in a larger wheel stroke, so that the all-terrain vehicle has larger ground clearance, strong obstacle passing capability and capability of buffering and absorbing impact shock from a rugged ground.

Description

All-terrain vehicle

Technical Field

The invention relates to the technical field of all-terrain vehicles, in particular to an all-terrain vehicle.

Background

For a sports all-terrain vehicle, in order to achieve the largest possible cross-country obstacle crossing capability, the suspension system of the sports all-terrain vehicle is required to provide the largest wheel movement stroke, and have good wheel positioning in the larger wheel movement stroke, and parameters including camber angle variation, toe angle variation and wheel sideslip amount of wheels are required to be as small as possible. The rear suspension of the sports all-terrain vehicle mostly adopts a multi-link suspension system.

In the prior art, a toe-in control rod is adopted to control the change of a toe-in angle of a wheel in a multi-connecting-rod rear suspension system of the same type of product. The structure has poor effect of controlling the toe-in angle of the wheel when the stroke of the wheel is larger, is quite sensitive to manufacturing errors, and is heavy and easy to damage due to the structure that the camber angle of the wheel is controlled by connecting the main rocker arm with the pull rod.

Disclosure of Invention

The present invention is directed to solving or improving the above-mentioned technical problems in the related art to some extent. To this end, an embodiment of the invention proposes an all-terrain vehicle comprising:

a frame supported by at least three wheels;

a front suspension connected to a front side of the frame and to at least one of the wheels;

a rear suspension including a left rear suspension and a right rear suspension connected to a rear side of the frame, the left rear suspension connected to the at least one wheel and the right rear suspension connected to the at least one wheel;

the left and right rear suspensions are symmetrically disposed about a centerline of the all terrain vehicle and each include:

the front end of the rocker arm is connected to the frame through a first joint bearing;

the wheel axle support is connected to the rear end of the rocker arm and provided with a first mounting part and a second mounting part, the first mounting part is hinged with the rocker arm through a second joint bearing, and the second mounting part is hinged with the rocker arm through a third joint bearing;

center points of the first joint bearing, the second joint bearing and the third joint bearing are collinear.

The all-terrain vehicle disclosed by the embodiment of the invention has the following beneficial effects: the first joint bearing, the second joint bearing and the third joint bearing are arranged in the same line, so that the wheel positioning which meets the driving requirement of the vehicle is always kept even in a larger wheel stroke, and the all-terrain vehicle has larger ground clearance, strong obstacle passing capacity and capacity of buffering and absorbing impact shock from the rugged ground.

In some embodiments, the rocker arm has a connecting portion at a front end of the rocker arm, a third hinge portion and a fourth hinge portion behind the connecting portion and spaced apart therefrom;

the first joint bearing is arranged on the connecting part, the second joint bearing is arranged on the third hinged part, and the third joint bearing is arranged on the fourth hinged part.

In some embodiments, each of the left and right rear suspensions further comprises a first tie rod and a second tie rod, inner ends of the first tie rod and the second tie rod are connected to the frame, and outer ends of the first tie rod and the second tie rod are connected to the wheel axle support.

In some embodiments, the axle support has a first hinge portion, a second hinge portion, and a wheel mounting portion for mounting a wheel, the second hinge portion and the first hinge portion being located on upper and lower sides of a centerline of the wheel mounting portion, respectively;

the outer end of the first pull rod is connected to the first hinge part through a fourth knuckle bearing;

the outer end of the second pull rod is connected to the second hinge part through a fifth knuckle bearing.

In some embodiments, the center points of the first joint bearing, the second joint bearing, and the third joint bearing are located on the same straight line a;

the first hinge part and the second hinge part are respectively arranged on two sides of the straight line a, the distance from the fourth joint bearing to the straight line a is h1, the distance from the fifth joint bearing to the straight line a is h2, and h1+ h2 is more than or equal to 180 mm.

In some embodiments, the straight line a is offset from a centerline of the wheel mounting portion.

In some embodiments, the wheel axle support further has a brake component mounting portion for mounting a brake component thereon, and the brake component mounting portion and the straight line a are offset from both sides of a center line of the wheel mounting portion, respectively.

In some embodiments, a horizontal distance L between a center point of the first joint bearing and a center point of the wheel mounting portion is greater than or equal to 900 mm.

In some embodiments, 1000mm L1200 mm.

In some embodiments, the left and right rear suspensions further each include a third tie rod;

the rocker arm is provided with a fifth hinge part which is positioned between the third hinge part and the connecting part;

the outer end of the third pull rod is hinged with the rocker arm through the fifth hinge part, and the inner end of the third pull rod is hinged with the frame.

In some embodiments, the left and right rear suspensions further each comprise a shock absorber;

the connecting point of the shock absorber and the rocker arm is located between the fifth hinge and the connecting portion.

In some embodiments, the all-terrain vehicle further comprises a stabilizer bar having one end connected to the left rear suspension rocker arm and another end connected to the right rear suspension rocker arm.

In some embodiments, the rocker arm has a sixth hinge thereon for connecting the stabilizer bar, the sixth hinge being located between the connection point of the shock absorber and the rocker arm and the connecting portion.

In some embodiments, the center points of the first joint bearing, the second joint bearing, and the third joint bearing are located on the same straight line a; the third pull rod and the shock absorber are hinged with the rocker arm through knuckle bearings, and the distance from the center of the knuckle bearing corresponding to the third pull rod to the straight line a is larger than the distance from the center of the knuckle bearing corresponding to the shock absorber to the straight line a.

In some embodiments, the left end of the stabilizer bar is provided with a left-turn extension bar, and the right end of the stabilizer bar is provided with a right-turn extension bar;

one end of the left rotating connecting rod is hinged with the left end of the stabilizing rod, and the other end of the left rotating connecting rod is hinged with the left rear suspension rocker arm;

one end of the right rotating connecting rod is hinged with the right end of the stabilizing rod, and the other end of the right rotating connecting rod is hinged with the rocker arm hung on the right rear portion.

In some embodiments, the rocker arm comprises a rocker arm body and a first rib plate and a second rib plate fixed on the rocker arm body;

the connecting part is positioned at the front end of the rocker arm body, the first rib plate is positioned in the middle area of the rocker arm body, and the second rib plate is positioned at the rear end of the rocker arm body;

the third hinge portion, the fifth hinge portion and the sixth hinge portion are located on the first rib plate, and the fourth hinge portion is located on the second rib plate.

In some embodiments, the included angle α between the length of the rocker arm and the centerline of the ATV is in the range of 3-9 °.

Other technical effects of the all-terrain vehicle of embodiments of the present invention will be described in detail in the detailed description.

Drawings

FIG. 1 is a schematic perspective view of an all terrain vehicle according to one embodiment of the present invention;

FIG. 2 is a schematic perspective view of a rear suspension according to an embodiment of the present invention;

FIG. 3 is a schematic perspective view of a rear right suspension according to an embodiment of the present invention;

FIG. 4 is an exploded schematic view of FIG. 3;

FIG. 5 is a side view of the rear right suspension in one embodiment of the present invention;

FIG. 6 is a top view of the rear right suspension in one embodiment of the present invention;

FIG. 7 is a rear view of the rear right suspension in one embodiment of the present invention;

FIG. 8 is a schematic perspective view of an axle support according to an embodiment of the present invention;

FIG. 9 is a schematic perspective view of a left rear suspension according to an embodiment of the present invention;

fig. 10 is a perspective view of a rocker arm in an embodiment of the invention.

Reference numerals:

1-vehicle wheels; 2-a frame; 3-a braking component; 4-a first spherical plain bearing; 5-a sixth spherical plain bearing; 6-a second spherical plain bearing; 7-a third spherical plain bearing; 8-fifth joint bearing, 9-fourth joint bearing;

10-a rocker arm; 11-a third hinge; 12-a fourth hinge; 13-a connecting part; 14-a fifth hinge; 15-a sixth hinge;

20-a shock absorber;

30-a first pull rod; 31-a second pull rod; 32-a third pull rod;

40-axle support; 41-a first hinge; 42-a second hinge; 43-a first mounting portion; 44-a second mounting portion; 45-a wheel mounting portion; 46-a brake component mounting portion;

50-a stabilizer bar; 51-left rotation extension bar; 52-right turn bar.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

Referring to fig. 1, the present embodiment provides an all-terrain vehicle comprising: a frame 2, a front suspension and a rear suspension, the frame 2 being supported by at least three wheels 1, wherein the frame 2 in fig. 1 is supported by four wheels 1; the front suspension is connected to the front side of the frame 2 and is connected to at least one wheel 1; the front suspension in fig. 1 is connected to two wheels 1. The rear suspension comprises a left rear suspension and a right rear suspension which are connected to the rear side of the frame 2, the left rear suspension is connected with at least one wheel 1, and the right rear suspension is connected with at least one wheel 1; the left and right rear suspensions in fig. 1 are each connected to a wheel 1. Referring to fig. 1 and 2, the left rear suspension and the right rear suspension are symmetrically arranged about the midline b of the all-terrain vehicle, so that the main constituent components of the left rear suspension and the right rear suspension are the same, and only the arrangement directions or the structural orientations of partial components are different.

Referring to fig. 3-4, the right rear suspension includes: rocker arm 10 and axle bracket 40. The front end of the rocker arm 10 is provided with a connecting part 13, and the connecting part 13 is connected with the frame 2; specifically, the connecting part 13 is hinged with the frame 2 through a first joint bearing 4; the first joint bearing 4 is matched with a bolt and a nut to realize the hinge joint of the connecting part 13 and the frame 2, and other contents related to the hinge joint in the embodiment can be set according to the example.

Referring to fig. 8, the wheel axle bracket 40 is connected to the rear end of the swing arm 10 and has a first mounting portion 43 and a second mounting portion 44, the first mounting portion 43 being hinged to the swing arm 10 through a second joint bearing 6, the second mounting portion 44 being hinged to the swing arm 10 through a third joint bearing 7; the first mounting portion 43 and the second mounting portion 44 are specifically extended structures extending from the wheel mounting portion 45 toward the swing arm 10 in the wheel axial direction, and shaft holes are provided at the ends of the extended structures. The first mounting portion 43 and the second mounting portion 44 are located on the front and rear sides of the center line c of the wheel mounting portion 45. The center points of the first joint bearing 4, the second joint bearing 6 and the third joint bearing 7 are collinear and all located on the same straight line a, so that the wheel 1 and the rocker arm 10 can swing together around the mounting part 13 in horizontal projection, and the horizontal projection oblique angle (i.e. the toe-in angle of the wheel) of the wheel shaft support 40 and the rocker arm 10 is controlled to be consistent. Wherein the straight line a coincides with the axis of the second joint bearing 6, the axis of the third joint bearing 7.

In some embodiments, each of the left and right rear suspensions further comprises a first tie rod 30 and a second tie rod 31, inner ends of the first and

second tie rods

30 and 31 are each connected to the frame 2, and outer ends of the first and

second tie rods

30 and 31 are each connected to the wheel axle bracket 40. The first pull rod 30 is located below the second pull rod 31, the outer ends of the second pull rod 31 and the first pull rod 30 are respectively connected to two different positions above and below the wheel axle support 40, and the inner ends of the second pull rod 31 and the first pull rod 30 are respectively connected to two different positions above and below the frame 2. The first pull rod 30 and the second pull rod 31 are jointly used for controlling the camber angle of the wheels, so that the all-terrain vehicle can stably walk.

In some embodiments, rocker arm 10 has a connecting portion 13, a third hinge portion 11 and a fourth hinge portion 12, where connecting portion 13 is located at the front end of rocker arm 10, and third hinge portion 11 and fourth hinge portion 12 are located behind connecting portion 13 and spaced apart from each other; the first joint bearing 4 is provided in the connecting portion 13, the second joint bearing 6 is provided in the third hinge portion 11, and the third joint bearing 7 is provided in the fourth hinge portion 12. The first mounting portion 43 is hinged to the third hinge portion 11 via the second joint bearing 6, and the second mounting portion 44 is hinged to the fourth hinge portion 12 via the third joint bearing 7. Thus, the wheel axle bracket 40 can rotate about the hinge axis of the third hinge part 11 and the hinge axis of the fourth hinge part 12, and the change of the camber angle is controlled by the first link 30 and the second link 31.

Further, referring to fig. 4 and 8, the wheel axle support 40 has a first hinge portion 41, a second hinge portion 42, and a wheel mounting portion 45 for mounting a wheel, the second hinge portion 42 and the first hinge portion 41 being respectively located at upper and lower sides of a center line c of the wheel mounting portion 45; the term "upper" in the present embodiment includes right above, obliquely above, and the like, and the term "lower" includes right below, obliquely below, and the like. The first hinge portion 41 and the second hinge portion 42 are formed as connection grooves having shaft holes in groove walls thereof, and the wheel mounting portion 45 is formed as a column structure having a shaft hole through which a driving shaft can be connected to the wheel 1, thereby transmitting a torque to the wheel 1 to rotate the wheel 1. The whole wheel axle support 40 can be of an integrally formed structure, and can be machined by adopting a casting and turning process, so that sufficient structural strength is ensured.

Specifically, with reference to fig. 3, 4 and 8, the second mounting portion 44, the first hinge portion 41 and the second hinge portion 42 are all located on the rear side of the centerline of the wheel mounting portion 45, with the first mounting portion 43 located on the front side of the centerline of the wheel mounting portion 45. This arrangement facilitates the machining of the axle support 40 and facilitates the mating connection with the rocker arm 10. The first hinge portion 41, the second hinge portion 42, the first mounting portion 43 and the second mounting portion 44 are all fixedly connected to the wheel mounting portion 45, and the entire wheel axle support 40 may be an integrally formed casting or may be formed by welding the respective portions.

Referring to fig. 4, the outer end of the first pull rod 30 is connected to the first hinge portion 41 through the fourth joint bearing 9; the outer end of the second pull rod 31 is connected to the second hinge portion 42 through the fifth joint bearing 8. When the right rear suspension is mounted on the frame 2, the other ends of the first pull rod 30 and the second pull rod 31 are respectively hinged at two different positions above and below the frame 2, so that the frame 2, the first pull rod 30, the wheel axle support 40 and the second pull rod 31 form a four-bar structure, and the wheel 1 can have a larger up-down movement stroke. The camber positioning of the wheel axle support 40 and the wheel 1 relative to the frame 2 can be controlled by providing the first tie rod 30 and the second tie rod 31. Further, the first pull rod 30 and the second pull rod 31 are both directly hinged to the axle support 40, so that the first pull rod 30 and the second pull rod 31 can directly transmit pulling force to the axle support 40 when controlling camber of the wheel, thereby reducing the pulling force of the first pull rod 30 and the second pull rod 31 on the rocker arm 10, improving the safety of the rocker arm 10, and enabling the rear right suspension to be more stable in the using process.

The "inner" and "outer" referred to herein are based on the centerline b of the all-terrain vehicle as the reference, the centerline b of the all-terrain vehicle is the innermost side, and the directions from the centerline b to the left and right sides are the outer sides.

In one embodiment, referring to FIG. 5, the first hinge part 41 and the second hinge part 42 are respectively arranged at both sides of a straight line a, the fourth joint bearing 9 is at a distance h1 from the straight line a, the fifth joint bearing 8 is at a distance h2 from the straight line a, and h1+ h2 is more than or equal to 180 mm. This dimension ensures that the axle support 40 is not susceptible to fatigue in its construction and improves control of the camber angle of the wheel 1.

Referring to fig. 5, in some embodiments, the line a is offset from the centerline of the wheel mounting portion 45. The rear suspension provides further improved control of the camber angle of the wheel 1 by this arrangement.

Referring to fig. 4 and 5, axle bracket 40 further includes a brake component mounting portion 46 for mounting brake component 3, and brake component mounting portion 46 and line a are offset from the center line of wheel mounting portion 45 on either side. Wherein, the braking component mounting part 46 for mounting the braking component 3 is positioned above the center line c, and the straight line a is positioned below the center line c; if the installation portion 46 is located below the center line c, the straight line a is located above the center line c.

Referring to fig. 5 and 6, the horizontal distance L between the center point of the connecting portion 13 and the center point of the wheel mounting portion 45 is greater than or equal to 900 mm. The horizontal distance L here refers to a distance between two points in the vehicle front-rear direction, and is not a straight-line distance between the two points. Preferably, L is more than or equal to 1000mm and less than or equal to 1200 mm.

Referring to fig. 6 and 7, the inner end of first pull rod 30 is at a distance L1 from the longitudinal center symmetry plane of the atv (with centerline b in the longitudinal center symmetry plane) and the inner end of second pull rod 31 is at a distance L2 from the longitudinal center symmetry plane of the atv, wherein L1 < L2.

In a specific embodiment, L1 is less than or equal to 100mm, and L2 is less than or equal to 100 mm.

Referring to fig. 5, the third pull rod 32 and the shock absorber 20 are both hinged to the swing arm 10 through a knuckle bearing, and the distance from the center of the sixth knuckle bearing 5 corresponding to the third pull rod 32 to the straight line a is greater than the distance from the center of the knuckle bearing corresponding to the shock absorber 20 to the straight line a. The all-terrain vehicle can walk more stably due to the arrangement, and the shock absorption effect of the shock absorber 20 is better.

In a particular embodiment, the right rear suspension further includes a third tie rod 32; the rocker arm 10 is provided with a fifth hinge joint 14, and the fifth hinge joint 14 is positioned between the third hinge joint 11 and the connecting part 13; the outer end of the third pull rod 32 is hinged to the swing arm 10 via a fifth hinge 14, and the inner end of the third pull rod 32 is used for being hinged to the frame 2. Specifically, the outer end of the third pull rod 32 is hinged to the fifth hinge part 14 through the sixth joint bearing 5. Referring to fig. 7, one function of the third pull rod 32 is to control the rotation of the rocker arm 10 about a straight line a; receives a lateral force component (Fy) of shock absorber 20 to reduce the torsional load received by rocker arm 10.

The third pull rod 32 hinged with the rocker arm 10 is arranged to control the moving state of the rocker arm 10, and the reliability of the wheel 1 during up-and-down bumping is further ensured. The control of the axle support 40 by combining the first pull rod 30 and the second pull rod 31 enables the movement of the rocker arm 10 and the axle support 40 to be correspondingly controlled, and greatly improves the running stability of the wheel 1.

In some embodiments, referring to fig. 2-4, the right rear suspension further includes a shock absorber 20, and the connection point of shock absorber 20 to rocker arm 10 is located between fifth hinge 14 and connecting portion 13. The shock absorber 20 is rotatably connected with the rocker arm 10, particularly connected to the middle area of the rocker arm 10, the shock absorber 20 is composed of a spring, a hydraulic shock absorber and the like, the upper end of the shock absorber is connected with the frame 2 through a joint bearing, and the lower end of the shock absorber is connected with the rocker arm 10 through a joint bearing; when the rear suspension works, the shock absorber 20 generates telescopic motion, impact energy from the ground through the wheel 1 is absorbed when the spring is compressed, the absorbed energy is released when the spring is extended, and the released energy is converted into heat to be dissipated through the hydraulic shock absorber.

In some embodiments, referring to fig. 5, the third link 32 and the shock absorber 20 are both hinged to the swing arm 10 through a knuckle bearing, and the center of the sixth knuckle bearing 5 corresponding to the third link 32 is located at a distance a from the straight line a greater than the distance a from the center of the knuckle bearing corresponding to the shock absorber 20. The all-terrain vehicle can walk more stably due to the arrangement, and the shock absorption effect of the shock absorber 20 is better.

Referring to fig. 2, in some embodiments, the all-terrain vehicle further includes a stabilizer bar 50, the stabilizer bar 50 having one end connected to the left rear suspension rocker arm 10 and the other end connected to the right rear suspension rocker arm 10. As shown in fig. 2, the stabilizer bar 50 may have a C-shape.

Further, the rocker arm 10 has a sixth hinge 15 for connecting the stabilizer 50, and the sixth hinge 15 is located between the connection point of the damper 20 and the rocker arm 10 and the connection portion 13. The left end of the stabilizer bar 50 is provided with a left-turning connecting rod 51, and the right end of the stabilizer bar 50 is provided with a right-turning connecting rod 52; one end of a left rotating connecting rod 51 is hinged with the left end of the stabilizer bar 50, and the other end is hinged with the rocker arm 10 hung at the left rear; one end of the right-turn connecting rod 52 is hinged with the right end of the stabilizer bar 50, and the other end is hinged with the rocker arm 10 hung at the right rear.

Referring to fig. 10, the rocker arm 10 includes a rocker arm body 101, and a first rib plate 102 and a second rib plate 103 fixed to the rocker arm body 101; the connecting part 13 is positioned at the front end of the rocker arm body 101, the first rib plate 102 is positioned in the middle area of the rocker arm body 101, and the second rib plate 103 is positioned at the rear end of the rocker arm body 101; the third 11, fifth 14 and sixth 15 hinge joints are located on the first web 102 and the fourth 12 hinge joint is located on the second web 103.

Referring to fig. 10, the first rib plate 102 includes a U-shaped rib plate having a U-shaped cross section and a mounting seat rib plate connected to a rear end of the U-shaped rib plate, a connection point of the shock absorber 20 and the swing arm 10 is located on the U-shaped rib plate, and the third hinge portion 11 and the fifth hinge portion 14 are located on the mounting seat rib plate. Wherein the openings of the U-shaped rib plates are directed upwards for facilitating connection with relevant components such as the shock absorber 20. Both the U-shaped rib plate and the mounting seat rib plate can be welded on the rocker arm body 101, and one cross section of the rocker arm body 101 is circular.

In one embodiment, the third hinge portion 11 and the fifth hinge portion 14 are both in a jaw structure, the third pull rod 32 is hinged to the fifth hinge portion 14 through the corresponding jaw structure, the first mounting portion 43 is hinged to the third hinge portion 11 through the corresponding jaw structure, and the jaw structure of the third hinge portion 11 and the jaw structure of the fifth hinge portion 14 face opposite directions. Specifically, the jaw structure of the third hinge 11 opens outwardly and the jaw structure of the fifth hinge 14 opens inwardly.

Referring to fig. 4 and 8, the distance between the first mount portion 43, the second mount portion 44 and the longitudinal center symmetry plane of the all terrain vehicle is less than the distance between the first hinge portion 41 and the longitudinal center symmetry plane of the all terrain vehicle and the distance between the second hinge portion 42 and the longitudinal center symmetry plane of the all terrain vehicle. That is, the first and second mounting

portions

43, 44 are closer to the longitudinal center symmetry plane of the atv than the first and

second hinge portions

41, 42. The arrangement facilitates the connection of the wheel axle support 40 and the rocker arm 10, and the whole structure of the rear suspension is more compact, so that the occupied space is reduced.

Referring to fig. 6, the angle α between the length of rocker arm 10 and the centerline of the atv is in the range of 3-9 °. To improve the stability of the rear suspension.

According to the above embodiments with respect to the related improvements in the rear suspension of an atv, the atv is given a large ground clearance, a strong ability to pass obstacles, an ability to cushion and absorb impact shocks from rough ground. And in a larger wheel stroke, the wheel positioning which meets the vehicle running requirement is always kept.

In the present embodiment, the direction-defining terms such as "upper", "lower", "left" and "right" are used in accordance with the state of the relevant component when the component is mounted on the vehicle.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An all-terrain vehicle comprising:

a frame (2), said frame (2) being supported by at least three wheels (1);

a front suspension connected to the front side of the frame (2) and to at least one of the wheels (1);

a rear suspension comprising a left rear suspension and a right rear suspension connected to a rear side of the frame (2), the left rear suspension being connected to at least one of the wheels (1), the right rear suspension being connected to at least one of the wheels (1);

a rocker arm (10), the front end of the rocker arm (10) being connected to the frame (2) by a first joint bearing (4);

an axle support (40), the axle support (40) being connected to a rear end of the rocker arm (10) and having a first mounting portion (43) and a second mounting portion (44), the first mounting portion (43) being articulated with the rocker arm (10) by a second joint bearing (6), the second mounting portion (44) being articulated with the rocker arm (10) by a third joint bearing (7);

the central points of the first joint bearing (4), the second joint bearing (6) and the third joint bearing (7) are collinear.

2. The all-terrain vehicle of claim 1, characterized in that the rocker arm (10) has a connecting portion (13), a third hinge portion (11) and a fourth hinge portion (12), the connecting portion (13) being located at a front end of the rocker arm (10), the third hinge portion (11) and the fourth hinge portion (12) being located rearward of the connecting portion (13) and being spaced apart;

the first joint bearing (4) is arranged on the connecting part (13), the second joint bearing (6) is arranged on the third hinge part (11), and the third joint bearing (7) is arranged on the fourth hinge part (12).

3. The all-terrain vehicle of claim 2, characterized in that the left and right rear suspensions each further comprise a first tie rod (30) and a second tie rod (31), the inner ends of the first and second tie rods (30, 31) each being connected to the frame (2), the outer ends of the first and second tie rods (30, 31) each being connected to the wheel axle bracket (40).

4. The all-terrain vehicle of claim 3, characterized in that the wheel axle support (40) has a first hinge portion (41), a second hinge portion (42), and a wheel mounting portion (45) for mounting a wheel, the second hinge portion (42) and the first hinge portion (41) being located on upper and lower sides of a center line of the wheel mounting portion (45), respectively;

the outer end of the first pull rod (30) is connected to the first hinge (41) through a fourth knuckle bearing (9);

the outer end of the second pull rod (31) is connected to the second hinge (42) by a fifth knuckle bearing (8).

5. The all-terrain vehicle of claim 4, characterized in that the center points of the first joint bearing (4), the second joint bearing (6) and the third joint bearing (7) are located on the same straight line a;

the first hinge part (41) and the second hinge part (42) are respectively arranged on two sides of the straight line a, the distance between the fourth joint bearing (9) and the straight line a is h1, the distance between the fifth joint bearing (8) and the straight line a is h2, and h1+ h2 is more than or equal to 180 mm.

6. The all-terrain vehicle of claim 5, characterized in that the straight line a is offset from a centerline of the wheel mounting portion (45).

7. The all-terrain vehicle of claim 6, characterized in that the wheel axle support (40) further has thereon a brake component mounting portion (46) for mounting a brake component (3), the brake component mounting portion (46) and the line a being offset from either side of a centerline of the wheel mounting portion (45), respectively.

8. The all-terrain vehicle of claim 4, characterized in that the horizontal distance L between the centre point of the first joint bearing (4) and the centre point of the wheel mounting (45) is greater than or equal to 900 mm.

9. The all-terrain vehicle of claim 3, characterized in that the left and right rear suspensions each further comprise a third tie rod (32);

the rocker arm (10) is provided with a fifth hinge (14), and the fifth hinge (14) is positioned between the third hinge (11) and the connecting part (13);

the outer end of the third pull rod (32) is hinged with the rocker arm (10) through the fifth hinge part (14), and the inner end of the third pull rod (32) is hinged with the frame (2).

10. The all-terrain vehicle of claim 9, characterized in that the left and right rear suspensions each further comprise a shock absorber (20);

the connection point of the shock absorber (20) to the rocker arm (10) is located between the fifth articulation (14) and the connecting portion (13).

11. The all-terrain vehicle of claim 10, characterized in that the center points of the first joint bearing (4), the second joint bearing (6) and the third joint bearing (7) are located on the same straight line a;

the third pull rod (32) and the shock absorber (20) are hinged with the rocker arm (10) through joint bearings, and the distance from the center of the joint bearing corresponding to the third pull rod (32) to the straight line a is larger than the distance from the center of the joint bearing corresponding to the shock absorber (20) to the straight line a.

12. The all-terrain vehicle of claim 10, characterized in that it further comprises a stabilizer bar (50), which stabilizer bar (50) is connected at one end to the left-suspended rocker arm (10) and at the other end to the right-suspended rocker arm (10), the rocker arm (10) having a sixth hinge (15) thereon for connecting the stabilizer bar (50), the sixth hinge (15) being located between the connection point of the shock absorber (20) and the rocker arm (10) and the connection portion (13).