Active suspension device of all-terrain vehicle

Abstract

The utility model relates to the technical field of all-terrain vehicles, in particular to an active suspension device of an all-terrain vehicle, which comprises a damper shell, and a damping mechanism for damping the all-terrain vehicle is arranged at one end of the damper shell; the damping mechanism comprises a movable rod, the movable rod is telescopically connected to one end of the damper shell, a piston slidably connected with the damper shell is fixed to one end of the movable rod, two limiting rods fixedly connected with the damper shell penetrate through the interior of the piston, and one side of each limiting rod is slidably connected with a movable plate. Through the arranged damping mechanism, a spring can be extruded, so that the spring absorbs a certain pressure, compressed nitrogen in a pressure shell is discharged into a cavity through a connecting pipe to push and reset a movable plate, and a buffer tension spring has a certain tensile force, so that the reset speed of the movable plate can be reduced; therefore, the situation that the head of the vehicle is warped due to too fast spring resetting is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of all - terrain vehicles, in particular to an active suspension device for an all - terrain vehicle. Background Technique

[0002] All - terrain vehicles often need to travel on various complex road conditions, such as rugged mountain roads, muddy swamps, etc. The active suspension device can ensure that the vehicle maintains the best driving state under various road conditions. The active suspension device of an all - terrain vehicle is an advanced form of the vehicle suspension system. It can cope with different road conditions and driving requirements, thus providing a more stable and comfortable driving experience, and also bringing a more pleasant driving experience to the driver.

[0003] The existing active suspension device of all - terrain vehicles has poor shock - absorption performance, which greatly reduces the riding comfort of all - terrain vehicles;

[0004] The existing patent (publication number: CN214248120U) discloses an active suspension device for an all - terrain vehicle, which includes a support plate. A circular groove is opened at the bottom of the support plate. A piston rod is slidably installed in the circular groove. The outer top of the piston rod is fixedly connected with a limiting plate. Two limiting grooves are opened on the inner wall of the circular groove. The limiting plate is slidably installed in the limiting grooves. The top end of the piston rod is fixedly connected with a main rod. A T - shaped hole is opened on the top inner wall of the circular groove. The main rod is slidably and sealingly installed in the T - shaped hole. It stretches the third shock - absorbing spring through two square plates. The first shock - absorbing spring, the second shock - absorbing spring and the third shock - absorbing spring can play a good shock - absorbing effect and improve the riding comfort.

[0005] In view of the above problems, the solution given by the existing patent stretches the third shock - absorbing spring through two square plates. The first shock - absorbing spring, the second shock - absorbing spring and the third shock - absorbing spring can play a good shock - absorbing effect and improve the riding comfort. However, it only uses springs as shock - absorbers, and the shock - absorbing effect is poor. Moreover, as an energy - storage device, after the spring is subjected to pressure, it will release pressure outward, resulting in the situation of the all - terrain vehicle tipping forward. Summary of the Invention

[0006] The purpose of the utility model is to provide an active suspension device for an all - terrain vehicle, which can squeeze the spring so that the spring absorbs a certain amount of pressure. The compressed nitrogen in the pressure shell is then discharged into the cavity through the connecting pipe to push the movable plate to reset. And because the set buffer tension spring has a certain tensile force, it can reduce the reset speed of the movable plate, thereby avoiding the situation that the vehicle tips forward due to the spring resetting too fast, so as to solve the problems raised in the above background technique.

[0007] To achieve the above object, the utility model provides the following technical solution: An active suspension device for an all-terrain vehicle, including a damper housing, and one end of the damper housing is provided with a shock absorption mechanism for damping the all-terrain vehicle;

[0008] The shock absorption mechanism includes a movable rod, the movable rod is telescopically connected to one end of the damper housing, a piston slidably connected to the damper housing is fixed to one end of the movable rod, two limiting rods fixedly connected to the damper housing penetrate through the interior of the piston, movable plates are slidably connected to one side of the two limiting rods, sealing rings are fixed to the outer surfaces of the movable plates and the piston, a hydraulic chamber is provided on the right side of the piston, a cavity is provided on the right side of the movable plate, and an assembly mechanism for assembling the device is provided at the other end of the movable rod.

[0009] Preferably, a buffer tension spring fixedly connected to the damper housing is installed inside the cavity, and the end of the buffer tension spring is fixedly connected to the side wall of the movable plate.

[0010] Preferably, a connecting pipe communicating with the cavity is fixed to the outer wall of the damper housing, and the end of the connecting pipe communicates with a pressure housing.

[0011] Preferably, the assembly mechanism includes a limiting block, the limiting block is fixed to the other end of the movable rod, and a spring abutting against the limiting block is sleeved on the outer surface of the movable rod.

[0012] Preferably, a connecting member is connected to the end of the movable rod, and a mounting hole is provided inside the connecting member.

[0013] Preferably, a fixed bearing is inlaid on the inner wall of the connecting member, and a fixed rod penetrating through the interior of the movable rod is fixed to the inner wall of the fixed bearing.

[0014] Preferably, a mounting block is fixed to the other end of the damper housing.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. By providing the shock absorption mechanism, the spring can be compressed, so that the spring absorbs a certain amount of pressure. The compressed nitrogen in the pressure housing is then discharged into the cavity through the connecting pipe to push the movable plate to reset. And because the provided buffer tension spring has a certain pulling force, the reset speed of the movable plate can be reduced, thereby avoiding the situation that the vehicle pitches up due to the spring resetting too fast;

[0017] 2. By providing the assembly mechanism, through the fixed bearing and the fixed rod provided on the connecting member, the angle between the movable rod and the connecting member can be adjusted, and then the mounting block on the damper housing is connected and fixed to the frame of the all-terrain vehicle through bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the overall structure view of the present invention;

[0020] Figure 2 It is the three-dimensional structure schematic diagram of the damper housing of the present invention;

[0021] Figure 3 It is the half-sectional structure schematic diagram of the damper housing of the present invention;

[0022] Figure 4 It is for the present invention Figure 3 Enlarged view of A in.

[0023] Explanation of reference numerals:

[0024] 1. Damper housing; 2. Movable rod; 21. Piston; 22. Limit rod; 23. Movable plate; 24. Sealing ring; 25. Hydraulic cavity; 26. Cavity; 27. Buffer tension spring; 28. Connecting pipe; 29. Pressure shell; 3. Limit block; 31. Spring; 4. Connector; 5. Mounting hole; 6. Fixed bearing; 7. Fixed rod; 8. Mounting block. Specific embodiments

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0026] The present invention provides a technical solution:

[0027] Please refer to Figures 1 to 4 , an active suspension device for an all-terrain vehicle, including a damper housing 1, and a shock absorption mechanism for damping the all-terrain vehicle is provided at one end of the damper housing 1;

[0028] The shock-absorbing mechanism includes a movable rod 2. The movable rod 2 is telescopically connected to one end of the damper housing 1. A piston 21 that is slidably connected to the damper housing 1 is fixed to one end of the movable rod 2. Two limiting rods 22 fixedly connected to the damper housing 1 penetrate through the interior of the piston 21. A movable plate 23 is slidably connected to one side of each of the two limiting rods 22. Sealing rings 24 are fixed to the outer surfaces of the movable plate 23 and the piston 21. A hydraulic chamber 25 is provided on the right side of the piston 21. A cavity 26 is provided on the right side of the movable plate 23. An assembly mechanism for assembling the device is provided at the other end of the movable rod 2. A buffer tension spring 27 fixedly connected to the damper housing 1 is installed inside the cavity 26. The end of the buffer tension spring 27 is fixedly connected to the side wall of the movable plate 23. A connecting pipe 28 that communicates with the cavity 26 is fixed to the outer wall of the damper housing 1. The end of the connecting pipe 28 communicates with a pressure shell 29. The assembly mechanism includes a limiting block 3. The limiting block 3 is fixed to the other end of the movable rod 2. A spring 31 that abuts against the limiting block 3 is sleeved on the outer surface of the movable rod 2.

[0029] By adopting the above technical solution, before using the active suspension device of the all-terrain vehicle, first assemble the device. When the vehicle jolts, the external pressure will push the movable rod 2 to move, causing the movable rod 2 to drive the limiting block 3 to squeeze the spring 31, enabling the spring 31 to absorb a certain amount of pressure. At this time, the movement of the movable rod 2 will drive the piston 21 to move inside the damper housing 1. Since the hydraulic chamber 25 is filled with hydraulic oil, the movement of the piston 21 will push the hydraulic oil, and the hydraulic oil will in turn push the movable plate 23 to move inside the damper housing 1. Since the cavity 26 and the pressure shell 29 are filled with compressed nitrogen, when the movable plate 23 moves, the nitrogen in the cavity 26 will be compressed again. The compressed nitrogen enters the pressure shell 29 through the connecting pipe 28 for energy storage, thereby achieving shock absorption and buffering. Moreover, the compressed nitrogen in the pressure shell 29 is discharged into the cavity 26 through the connecting pipe 28 to push the movable plate 23 to reset. Since the buffer tension spring 27 has a certain tensile force, it can reduce the reset speed of the movable plate 23, thereby avoiding the situation that the vehicle pitches up due to the spring 31 resetting too quickly. The sealing rings 24 provided on the outer surfaces of the movable plate 23 and the piston 21 can play a sealing role to prevent leakage. The limiting rods 22 provided can play a guiding role to improve stability.

[0030] Specifically, as Figure 1 、 Figure 2 and Figure 3 shown, a connecting member 4 is connected to the end of the movable rod 2. An installation hole 5 is formed inside the connecting member 4. A fixed bearing 6 is inlaid on the inner wall of the connecting member 4. A fixed rod 7 that penetrates through the interior of the movable rod 2 is fixed to the inner wall of the fixed bearing 6. An installation block 8 is fixed to the other end of the damper housing 1.

[0031] By adopting the above technical solution, through the connecting member 4 provided on the movable rod 2, it can be connected to the wheel hub of the all-terrain vehicle by using bolts through the mounting holes 5 on the connecting member 4. And through the fixed bearing 6 and the fixed rod 7 provided on the connecting member 4, the angle between the movable rod 2 and the connecting member 4 can be adjusted. Then, the mounting block 8 on the damper housing 1 is fixedly connected to the frame of the all-terrain vehicle by bolts.

[0032] Working principle: The mounting block 8 on the damper housing 1 is fixedly connected to the frame of the all-terrain vehicle by bolts. When the vehicle jolts, the external pressure will push the movable rod 2 to move, causing the movable rod 2 to drive the limiting block 3 to squeeze the spring 31, so that the spring 31 absorbs a certain amount of pressure. At this time, the movement of the movable rod 2 will drive the piston 21 to move inside the damper housing 1. And the hydraulic cavity 25 is filled with hydraulic oil, so that the movement of the piston 21 will push the hydraulic oil, and the hydraulic oil will push the movable plate 23 to move inside the damper housing 1 again, and the nitrogen gas in the cavity 26 will be compressed again. The compressed nitrogen gas enters the pressure shell 29 through the connecting pipe 28 for energy storage, thereby performing shock absorption and buffering. And the nitrogen gas compressed in the pressure shell 29 is discharged into the cavity 26 through the connecting pipe 28 again to push the movable plate 23 to reset. And because the buffer tension spring 27 provided has a certain tensile force, the reset speed of the movable plate 23 can be reduced, thereby avoiding the situation that the vehicle tilts up due to the too-fast reset of the spring 31. Through the sealing rings 24 provided on the outer surfaces of the movable plate 23 and the piston 21, a sealing effect can be achieved.

[0033] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An active suspension device for an all-terrain vehicle, comprising a damper housing (1), characterized in that: One end of the damper housing (1) is provided with a shock absorbing mechanism for absorbing shock of the all-terrain vehicle; The shock absorbing mechanism comprises a movable rod (2), the movable rod (2) being telescopically connected to one end of a damper housing (1), a piston (21) being fixed at one end of the movable rod (2) and being slidably connected to the damper housing (1), two limit rods (22) being fixedly connected to the damper housing (1) passing through the interior of the piston (21), a movable plate (23) being slidably connected to one side of the two limit rods (22), a sealing ring (24) being fixed to the outer surfaces of the movable plate (23) and the piston (21), a hydraulic chamber (25) being provided on the right side of the piston (21), a cavity (26) being provided on the right side of the movable plate (23), and an assembly mechanism for assembling the device being provided at the other end of the movable rod (2).

2. The active suspension device for an all-terrain vehicle according to claim 1, characterized in that: A buffer tension spring (27) fixedly connected to the damper housing (1) is installed inside the cavity (26), and the end of the buffer tension spring (27) is fixedly connected to the side wall of the movable plate (23).

3. The active suspension device for an all-terrain vehicle according to claim 2, characterized in that: A connecting pipe (28) communicating with the cavity (26) is fixed to the outer wall of the damper housing (1), and the end of the connecting pipe (28) is connected to the pressure shell (29).

4. The active suspension device for an all-terrain vehicle according to claim 1, characterized in that: The assembly mechanism comprises a limit block (3), the limit block (3) being fixed to the other end of the movable rod (2), and the outer surface of the movable rod (2) being sleeved with a spring (31) abutting against the limit block (3).

5. The active suspension device for an all-terrain vehicle according to claim 1, characterized in that: The end of the movable rod (2) is connected to a connecting piece (4), and a mounting hole (5) is provided inside the connecting piece (4).

6. The active suspension device for an all-terrain vehicle according to claim 5, characterized in that: The inner wall of the connecting piece (4) is inlaid with a fixed bearing (6), and the inner wall of the fixed bearing (6) is fixed with a fixed rod (7) that penetrates the interior of the movable rod (2).

7. The active suspension device for an all-terrain vehicle according to claim 1, characterized in that: A mounting block (8) is fixed to the other end of the damper housing (1).

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