All terrain vehicle frame and all terrain vehicle

Abstract

The dune buggy frame comprises an outer frame body and an inner frame body, the inner frame body is arranged in the outer frame body, and the front end and the rear end of the inner frame body are rotationally connected with the front end and the rear end of the outer frame body correspondingly so that the inner frame body can rotate leftwards and rightwards relative to the outer frame body; a rear suspension mechanism is arranged at the rear end of the inner frame, the rear suspension mechanism and the inner frame rotate synchronously, and damping pedals are symmetrically arranged on the two sides of the outer frame. The dune buggy comprises a front steering suspension system, a front wheel, a sitting part, a rear wheel and a power device, and further comprises the dune buggy frame. When the vehicle runs on an uneven road surface, the inner frame can rotate leftwards and rightwards relative to the outer frame, the two rear wheels can be always kept in contact with the ground, the driving performance is not affected, and the comfort and safety of the vehicle are improved; the damping pedals are symmetrically arranged on the two sides of the outer bicycle frame, feet and legs of a rider cannot be strongly vibrated, and the rider feels comfortable.

Description

Technical Field

[0001] The present invention relates to the technical field of all-terrain vehicles, and specifically refers to an all-terrain vehicle frame and an all-terrain vehicle. Background Art

[0002] As an outdoor vehicle suitable for complex terrains, all-terrain vehicles often face challenges on rough and uneven roads. Most traditional all-terrain vehicle frames are of a rigid integral structure, and the rear suspension system is fixedly connected to the frame. When the vehicle travels on roads with different heights on both sides, it is easy to cause one-sided rear wheels to be suspended, resulting in a decrease in the grip of the driving wheels, and even causing the power chain to fall off due to the distortion of the vehicle body, seriously affecting driving safety and handling stability. In addition, the footrest area of traditional all-terrain vehicles lacks effective shock absorption design, and riders' feet and legs are constantly subjected to severe road vibrations, which easily cause fatigue or discomfort.

[0003] In the prior art, some frames attempt to improve passability by adding an independent suspension system or a flexible connection structure, but usually the structure is complex and it is difficult to balance the body stability and the reliability of the transmission system. For example, the independent swing of the rear suspension may cause the power chain to be overstretched or distorted due to the deformation of the vehicle body, affecting the transmission efficiency.

[0004] Therefore, in view of the above-described technical problems, there is an urgent need for an all-terrain vehicle frame and an all-terrain vehicle. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide an all-terrain vehicle frame and an all-terrain vehicle.

[0006] To solve the above technical problems, the technical solution provided by the present invention is an all-terrain vehicle frame: including an outer frame and an inner frame, the inner frame is arranged inside the outer frame, and the front and rear ends of the inner frame are respectively rotatably connected to the front and rear ends of the outer frame to enable the inner frame to rotate left and right relative to the outer frame; a rear suspension mechanism is provided at the rear end of the inner frame, the rear suspension mechanism rotates synchronously with the inner frame, and shock-absorbing pedals are symmetrically arranged on both sides of the outer frame.

[0007] As an improvement, the shock-absorbing pedal includes a side mounting bracket, an outer frame, an inner frame and shock-absorbing springs. The side mounting brackets are symmetrically arranged on the side of the outer frame. One end of the outer frame is symmetrically provided with mounting plates, and the mounting plates and the side mounting brackets are connected by bolts. The inner frame is arranged inside the outer frame. A plurality of perforated hanging plates are evenly arranged on the lower part of the outer frame and the lower part of the inner frame. The perforated hanging plates on the outer frame and the perforated hanging plates on the inner frame correspond one by one, and both ends of the shock-absorbing spring are respectively hung on two corresponding perforated hanging plates.

[0008] As an improvement, a front mounting portion is provided at the front end of the outer frame, a rear mounting portion is provided at the rear end of the outer frame, mounting holes are provided at the upper and lower ends of the front mounting portion and the upper and lower ends of the rear mounting portion, a pin shaft is provided in the mounting hole, and a layer of silica gel is wrapped outside the pin shaft for shock absorption. The upper and lower ends of the front mounting portion are rotatably connected to the outer frame through the pin shaft, the lower end of the rear mounting portion is rotatably connected to the outer frame through the pin shaft, bearings are provided on both the front mounting portion and the rear mounting portion, rotating shafts are respectively provided at the front and rear ends of the inner frame, and the inner frame is rotatably connected through the rotating shafts and the bearings, so that the inner frame can rotate left and right relative to the outer frame.

[0009] As an improvement, upper shock-absorbing connecting portions are symmetrically provided on both sides of the front end of the inner frame, lower shock-absorbing connecting portions are provided at positions corresponding to the upper shock-absorbing connecting portions on both sides of the outer frame, side shock absorbers are connected to the upper shock-absorbing connecting portions through bolts, and the lower ends of the side shock absorbers are rotatably connected to the corresponding lower shock-absorbing connecting portions through pin shafts.

[0010] As an improvement, a limiting mechanism is provided in the middle of the rear end of the outer frame, the limiting mechanism is located in the middle of the inner frame, and the inner frame is limited when it sways left and right.

[0011] As an improvement, rear connecting plates are symmetrically provided at the rear end of the inner frame;

[0012] The rear suspension mechanism includes a rear suspension, a rear shock-absorbing suspension and a rear wheel axle. The front end of the rear suspension is rotatably connected to the two rear connecting plates through a pin shaft, so that the rear suspension can rotate up and down relative to the inner frame. The rear end of the rear suspension is rotatably provided with a rear wheel axle, a transmission gear disc is provided on the rear wheel axle, a rear shock-absorbing suspension is rotatably provided on the rear suspension, and the upper end of the rear shock-absorbing suspension is rotatably connected to the rear end of the outer frame.

[0013] As an improvement, equipment mounting brackets are provided at both the front and rear ends of the inner frame.

[0014] A beach vehicle includes a front steering suspension system, front wheels, a seating portion, rear wheels and a power device, and is characterized in that: it further includes the above-mentioned beach vehicle frame. The front steering suspension system is symmetrically arranged on both sides of the front end of the outer frame and is rotatably connected to the outer frame to realize the up and down movement of the outer frame. Front wheels are provided on the front steering suspension system. The seating portion is arranged on the outer frame. The power device is arranged in the inner frame and is connected to the equipment mounting bracket through bolts. The power device is connected to the transmission gear disc through a chain, and rear wheels are provided at both ends of the rear wheel axle.

[0015] The advantages of the present invention compared with the prior art are as follows:

[0016] For this ATV frame and ATV, when the vehicle is traveling on an uneven road surface and one side where the two rear wheels are at different heights is lifted, since the inner frame can rotate left and right relative to the outer frame, the rear suspension mechanism can be rotated together, enabling the two rear wheels to always remain in contact with the ground, without affecting the driving performance, providing a good driving experience, and being able to automatically adjust according to the road conditions to keep the vehicle body stable, thereby improving the comfort and safety of the vehicle; at the same time, through the design of the inner and outer frames, the overall rotation of the inner frame and the rear suspension mechanism can avoid the twisting of the chain, ensure that both the left and right rear wheels are grounded, and prevent the chain drive from being affected;

[0017] Shock-absorbing pedals are symmetrically provided on both sides of the outer frame. When the rider steps on them, the feet and legs can be shock-absorbed through the shock-absorbing pedals. In this way, no matter how rough the road is, the rider's feet and legs will not be strongly vibrated, making the rider more comfortable. Brief Description of the Drawings

[0018] Figure 1 is a schematic diagram of the ATV structure of an ATV frame and ATV of the present invention.

[0019] Figure 2 is a schematic diagram of the internal structure of an ATV frame and ATV of the present invention.

[0020] Figure 3 is a side view of the frame of an ATV frame and ATV of the present invention.

[0021] Figure 4 is a rear view of the frame of an ATV frame and ATV of the present invention.

[0022] Figure 5 is a rear perspective structural schematic diagram of the frame of an ATV frame and ATV of the present invention.

[0023] Figure 6 is a front perspective structural schematic diagram of the frame of an ATV frame and ATV of the present invention.

[0024] Figure 7 is a bottom perspective structural schematic diagram of the frame of an ATV frame and ATV of the present invention.

[0025] Figure 8 is a three-dimensional structural schematic diagram of the inner frame and the rear suspension mechanism of an ATV frame and ATV of the present invention.

[0026] Figure 9 is a structural schematic diagram of the shock-absorbing pedal of an ATV frame and ATV of the present invention.

[0027] Figure 10 is Figure 4 a cross-sectional view taken along line A-A in

[0028] Figure 11 is Figure 7 The partial enlarged view at position B in

[0029] Figure 12 is Figure 10 The partial enlarged view at position C in

[0030] Figure 13 is Figure 10 The partial enlarged view at position D in

[0031] As shown in the figure:

[0032] 1. Outer frame, 2. Inner frame, 3. Side mounting frame, 4. Outer frame, 5. Inner frame, 6. Shock-absorbing spring, 7. Mounting plate, 8. Perforated hanging plate, 9. Front mounting part, 10. Rear mounting part, 11. Bearing, 12. Rotating shaft, 13. Upper shock-absorbing connection part, 14. Lower shock-absorbing connection part, 15. Side shock absorber, 16. Limiting mechanism, 17. Rear connecting plate, 18. Rear suspension, 19. Rear shock-absorbing suspension, 20. Rear wheel axle, 21. Equipment mounting frame, 22. Front steering suspension system, 23. Front wheel, 24. Riding part, 25. Rear wheel, 26. Power device, 27. Transmission sprocket, 28. Mounting hole, 29. Pin shaft, 30. Silicone. Specific embodiments

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Combined with the attached Figures 1-13 , a beach vehicle frame includes an outer frame 1 and an inner frame 2. The inner frame 2 is disposed inside the outer frame 1. The front and rear ends of the inner frame 2 are respectively rotatably connected to the front and rear ends of the outer frame 1 to enable the inner frame 2 to rotate left and right relative to the outer frame 1. A rear suspension mechanism is provided at the rear end of the inner frame 2. The rear suspension mechanism rotates synchronously with the inner frame 2. Shock-absorbing pedals are symmetrically provided on both sides of the outer frame 1.

[0035] The shock-absorbing pedal includes side mounting brackets 3, an outer frame 4, an inner frame 5, and shock-absorbing springs 6. The side mounting brackets 3 are symmetrically arranged on the side of the outer vehicle frame 1. One end of the outer frame 4 is symmetrically provided with mounting plates 7. The mounting plates 7 and the side mounting brackets 3 are connected by bolts. The inner frame 5 is arranged inside the outer frame 4. A plurality of perforated hanging plates 8 are evenly provided at the lower parts of the outer frame 4 and the inner frame 5. The perforated hanging plates 8 on the outer frame 4 and the perforated hanging plates 8 on the inner frame 5 correspond to each other one by one. The two ends of the shock-absorbing spring 6 are respectively hung on two corresponding perforated hanging plates 8 to form an elastic support structure. When the foot pressure of the rider acts on the inner frame 5, the shock-absorbing spring 6 compresses to absorb vibration, significantly reducing the impact force transmitted to the legs.

[0036] A front mounting portion 9 is provided at the front end of the outer vehicle frame 1, and a rear mounting portion 10 is provided at the rear end of the outer vehicle frame 1. Mounting holes 28 are provided at the upper and lower ends of the front mounting portion 9 and the upper and lower ends of the rear mounting portion 10. A pin shaft 29 is provided in the mounting hole 28, and a layer of silica gel 30 is wrapped outside the pin shaft 29, which can play a shock-absorbing role, so that the vibration of the engine in the inner vehicle frame 2 will not be transmitted to the outer vehicle frame 1, so that the rider can be more comfortable. The upper and lower ends of the front mounting portion 9 are rotatably connected to the outer vehicle frame 1 through the pin shaft 29. The lower end of the rear mounting portion 10 is rotatably connected to the outer vehicle frame 1 through the pin shaft 29. Bearings 11 are provided on both the front mounting portion 9 and the rear mounting portion 10. Rotating shafts 12 are respectively provided at the front and rear ends of the inner vehicle frame 2. The inner vehicle frame 2 is rotatably connected to the outer vehicle frame 1 through the rotating shafts 12 and the bearings 11, realizing that the inner vehicle frame 2 can rotate left and right relative to the outer vehicle frame 1.

[0037] Upper shock-absorbing connection portions 13 are symmetrically provided on both sides of the front end of the inner vehicle frame 2. Lower shock-absorbing connection portions 14 are provided at positions corresponding to the upper shock-absorbing connection portions 13 on both sides of the outer vehicle frame 1. Side shock absorbers 15 are connected to the upper shock-absorbing connection portions 13 by bolts. The lower ends of the side shock absorbers 15 and the corresponding lower shock-absorbing connection portions 14 are rotatably connected by pin shafts, forming a shock-absorbing structure for the inner vehicle frame 2 to further buffer the lateral swing of the inner vehicle frame 2.

[0038] A limiting mechanism 16 is provided in the middle of the rear end of the outer vehicle frame 1. The limiting mechanism 16 is located in the middle of the inner vehicle frame 2 to limit the inner vehicle frame 2 when it sways left and right, and is used to limit the left and right rotation amplitude of the inner vehicle frame 2 to prevent excessive deflection.

[0039] Rear connection plates 17 are symmetrically provided at the rear end of the inner vehicle frame 2;

[0040] The rear suspension mechanism includes a rear suspension 18, a rear shock absorber suspension 19 and a rear wheel axle 20. The front end of the rear suspension 18 is rotatably connected to two rear connecting plates 17 through a pin shaft, so as to realize the up-and-down swing of the rear suspension 18 relative to the inner frame 2. The rear end of the rear suspension 18 is rotatably provided with a rear wheel axle 20. A transmission sprocket 27 is provided on the rear wheel axle 20. A rear shock absorber suspension 19 is rotatably provided on the rear suspension 18. The upper end of the rear shock absorber suspension 19 is rotatably connected to the rear end of the outer frame 1.

[0041] Equipment mounting brackets 21 are provided at both the front and rear ends of the inner frame 2.

[0042] A beach vehicle includes a front steering suspension system 22, front wheels 23, a riding part 24, rear wheels 25 and a power device 26. It is characterized in that: it further includes the above-mentioned beach vehicle frame. The front steering suspension system 22 is symmetrically arranged on both sides of the front end of the outer frame 1 and is rotatably connected to the outer frame 1 to realize the up-and-down movement of the outer frame 1. Front wheels 23 are provided on the front steering suspension system 22. The riding part 24 is arranged on the outer frame 1. The power device 26 is arranged inside the inner frame 2 and is connected to the equipment mounting bracket 21 through bolts. The power device 26 is connected to the transmission sprocket 27 through a chain. Rear wheels 25 are provided at both ends of the rear wheel axle 20.

[0043] In the specific implementation of the present invention,

[0044] When the vehicle is driving on an uneven road surface, when one side where the two rear wheels 25 are at different heights is lifted, since the inner frame 2 can rotate left and right relative to the outer frame 1, the rear suspension mechanism can be rotated together, and it can always keep both rear wheels 25 in contact with the ground, without affecting the driving performance, and the driving experience is good. It can be automatically adjusted according to the road conditions to keep the vehicle body stable, thereby improving the comfort and safety of the vehicle; at the same time, through the design of the inner and outer frames, the inner frame 2 and the rear suspension mechanism rotate as a whole, which can avoid the twisting of the chain, ensure that the left and right rear wheels are both grounded, and avoid the influence on the chain drive;

[0045] Shock-absorbing pedals are symmetrically provided on both sides of the outer frame 1. When the rider steps on them, the feet and legs can be shock-absorbed through the shock-absorbing pedals. In this way, no matter how rough the road is, the feet and legs of the rider will not be strongly vibrated, making the rider more comfortable.

[0046] In the description of the embodiments of the present invention, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0047] In addition, if terms such as "horizontal", "vertical", "hanging" and other terms do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0048] In the description of the embodiments of the present invention, "a plurality of" represents at least two.

[0049] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if terms such as "set", "installed", "connected", "connected" are understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The above describes the present invention and its embodiments. Such a description is not restrictive. What is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural forms and embodiments without creative work without departing from the purpose of the present invention, they shall fall within the protection scope of the present invention.

Claims

1. A beach buggy frame, characterized in that, It includes an outer frame (1) and an inner frame (2). The inner frame (2) is arranged inside the outer frame (1). The front and rear ends of the inner frame (2) are respectively rotatably connected to the front and rear ends of the outer frame (1) to enable the inner frame (2) to rotate left and right relative to the outer frame (1). A rear suspension mechanism is provided at the rear end of the inner frame (2), and the rear suspension mechanism rotates synchronously with the inner frame (2). Shock-absorbing pedals are symmetrically provided on both sides of the outer frame (1).

2. The beach vehicle frame according to claim 1, characterized in that: The shock-absorbing pedal includes a side mounting frame (3), an outer frame (4), an inner frame (5) and a shock-absorbing spring (6). The side mounting frames (3) are symmetrically arranged on the sides of the outer frame (1). One side end of the outer frame (4) is symmetrically provided with mounting plates (7). The mounting plates (7) and the side mounting frames (3) are connected by bolts. The inner frame (5) is arranged inside the outer frame (4). A plurality of perforated hanging plates (8) are evenly provided at the lower parts of the outer frame (4) and the inner frame (5). The perforated hanging plates (8) on the outer frame (4) and the perforated hanging plates (8) on the inner frame (5) correspond one by one. The two ends of the shock-absorbing spring (6) are respectively hung on two corresponding perforated hanging plates (8).

3. The beach vehicle frame according to claim 1, characterized in that: A front mounting part (9) is provided at the front end of the outer frame (1), and a rear mounting part (10) is provided at the rear end of the outer frame (1). Mounting holes (28) are provided at the upper and lower ends of the front mounting part (9) and the upper and lower ends of the rear mounting part (10). A pin shaft (29) is arranged in the mounting hole (28), and a layer of silica gel (30) is wrapped outside the pin shaft (29) for shock absorption. The upper and lower ends of the front mounting part (9) are respectively rotatably connected to the outer frame (1) through the pin shaft (29). The lower end of the rear mounting part (10) is rotatably connected to the outer frame (1) through the pin shaft (29). Bearings (11) are provided on both the front mounting part (9) and the rear mounting part (10). The front and rear ends of the inner frame (2) are respectively provided with rotating shafts (12). The inner frame (2) is rotatably connected through the rotating shafts (12) and the bearings (11) to enable the inner frame (2) to rotate left and right relative to the outer frame (1).

4. The beach vehicle frame according to claim 3, characterized in that: Upper shock-absorbing connection parts (13) are symmetrically provided on both sides of the front end of the inner frame (2). Lower shock-absorbing connection parts (14) are provided at the positions corresponding to the upper shock-absorbing connection parts (13) on both sides of the outer frame (1). Side shock absorbers (15) are connected to the upper shock-absorbing connection parts (13) by bolts. The lower ends of the side shock absorbers (15) and the corresponding lower shock-absorbing connection parts (14) are rotatably connected through pin shafts.

5. The beach vehicle frame according to claim 3, characterized in that: A limiting mechanism (16) is provided in the middle of the rear end of the outer frame (1). The limiting mechanism (16) is located in the middle of the inner frame (2) to limit the inner frame (2) when the inner frame (2) sways left and right.

6. The beach vehicle frame according to claim 1, characterized in that: The rear end of the inner frame (2) is symmetrically provided with rear connecting plates (17). The rear suspension mechanism includes a rear suspension (18), a rear shock absorber suspension (19) and a rear wheel axle (20). The front end of the rear suspension (18) is rotatably connected to two rear connecting plates (17) through a pin shaft, so as to enable the rear suspension (18) to rotate up and down relative to the inner frame (2). The rear end of the rear suspension (18) is rotatably provided with a rear wheel axle (20). A transmission gear disc (27) is provided on the rear wheel axle (20). The rear shock absorber suspension (19) is rotatably provided on the rear suspension (18). The upper end of the rear shock absorber suspension (19) is rotatably connected to the rear end of the outer frame (1).

7. The beach vehicle frame according to claim 1, wherein: Device mounting brackets (21) are provided at both the front and rear ends of the inner frame (2).

8. An ATV, comprising a front steering suspension system (22), front wheels (23), a seating part (24), rear wheels (25), and a power unit (26), characterized in that: It further includes the beach vehicle frame according to any one of claims 1 to 7. The front steering suspension system (22) is symmetrically arranged on both sides of the front end of the outer frame (1) and is rotatably connected to the outer frame (1) to realize the up and down movement of the outer frame (1). A front wheel (23) is provided on the front steering suspension system (22). The seating part (24) is arranged on the outer frame (1). The power device (26) is arranged inside the inner frame (2) and is connected to the device mounting bracket (21) through bolts. The power device (26) is connected to the transmission gear disc (27) through a chain. Rear wheels (25) are provided at both ends of the rear wheel axle (20).

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