All terrain vehicle frame

Abstract

The utility model discloses a dune buggy frame which comprises a frame body, a front wheel system is arranged at the front end of the frame body, a rear wheel system is arranged at the rear end of the frame body, and an engine is installed in the middle of the frame body. The steering handle is installed at the front end of the frame, a steering column is arranged at the bottom of the steering handle, and the steering column extends towards the bottom of the frame and is rotationally connected with the bottom of the frame through a bearing. The steering column connected through the bearing, the steel pipe steering column without a welding structure, the front rocker arm with a detachable and adjustable ball head structure, the ball head connected through the taper, the stable front damping system, the movable part with the lubricating design and the engine installation with a flexible connection structure are adopted. The control flexibility, stability, safety, comfort and durability of the dune buggy are remarkably improved, and the adaptability under different terrains and the reliability of long-term use are ensured.

Description

Technical Field

[0001] This utility model relates to the field of beach buggies, specifically to a beach buggy frame. Background Technology

[0002] An all-terrain vehicle (ATV) is a lightweight off-road vehicle suitable for various complex terrains, commonly used in field operations, tourism and recreation, and agricultural and forestry patrols. As the key load-bearing structure of the ATV, the frame not only serves as the mounting platform for the main components of the vehicle, but also directly affects the vehicle's driving stability, handling performance, and ease of maintenance.

[0003] The existing ATV frames still have room for improvement in structural design. For example, the steering column is usually fixed to the frame and lacks a rotational support structure, resulting in some resistance in steering, inconvenience in disassembly and assembly, and high maintenance costs. In addition, some steering columns use a welded structure, which makes it difficult to control verticality, affecting handling precision and safety.

[0004] Regarding the front suspension system, some existing models use non-removable connections for the lower and upper front control arms. This not only affects daily maintenance but also limits the front wheel system's adjustability under different road conditions. Furthermore, some connection structures lack lubrication mechanisms, posing a risk of accelerated wear and shortening their lifespan.

[0005] Furthermore, as the production of ATVs moves towards automation, higher requirements are placed on the assembly precision and welding consistency of the frame structure. Traditional structural designs that rely on manual welding have certain limitations in terms of production efficiency and product consistency. Summary of the Invention

[0006] To address the aforementioned issues, this utility model provides a beach buggy frame with a reasonable structural design, reliable connections, and easy maintenance. It is also compatible with mechanized beach buggy frame structures, thereby improving the overall vehicle's handling, service life, and production efficiency.

[0007] This utility model is achieved through the following technical solution: a beach buggy frame, comprising:

[0008] A chassis, wherein a front wheel system is provided at the front end of the chassis, a rear wheel system is provided at the rear end of the chassis, and an engine is mounted in the middle of the chassis;

[0009] A handlebar is mounted at the front end of the frame, and a steering column is provided at the bottom of the handlebar. The steering column extends toward the bottom of the frame and is rotatably connected to the bottom of the frame via a bearing.

[0010] A front lower rocker arm is provided on both sides of the front wheel system. One end of the front lower rocker arm is hinged to the frame, and the other end is provided with a detachable ball joint structure.

[0011] A front upper rocker arm is provided on both sides of the front wheel system. A rocker arm rotation connecting rod is fixedly provided at one end of the front upper rocker arm. A connecting bracket is fixedly provided on the frame corresponding to the rocker arm rotation connecting rod. The rocker arm rotation connecting rod is rotatably installed between the two connecting brackets. An adjustable ball joint structure is provided at the other end of the front upper rocker arm.

[0012] Connecting horns are provided on both sides of the front wheel system. The lower front rocker arm is connected to the connecting horns through the detachable ball joint structure. The upper front rocker arm is connected to the connecting horns through the adjustable ball joint structure. A front wheel connecting seat is provided on the connecting horn.

[0013] The front steering system is respectively installed on the steering column. One end of the front steering system is connected to the steering horn through a ball joint connection structure, and the other end is connected to the steering column through a ball joint connection structure.

[0014] A steering tie rod fixing plate is fixedly installed on the steering column. The front steering system includes a steering tie rod. One end of the steering tie rod is connected to the steering tie rod fixing plate through a ball joint connection structure, and the other end is connected to the connecting horn through a ball joint connection structure.

[0015] As a preferred technical solution, the system also includes a front shock absorber system, the top of which is rotatably mounted on a first shock absorber bracket, the first shock absorber bracket being fixed to the vehicle frame, and the bottom of which is rotatably mounted on a second shock absorber bracket, the second shock absorber bracket being fixed to the front lower rocker arm.

[0016] As a preferred technical solution, the detachable ball joint structure includes a first connecting ear fixedly disposed on the connecting horn, a first ball joint connecting rod passing through the first connecting ear, a locking nut installed on the first ball joint connecting rod, a first ball joint connector disposed on the front lower rocker arm corresponding to the position of the first ball joint connecting rod, and a first ball joint connector disposed on the first ball joint connector having a first spherical cavity and a first ball joint locking nut.

[0017] As a preferred technical solution, the adjustable ball joint structure includes a second connecting ear disposed on the connecting horn, a second ball joint connecting rod fixedly disposed on the second connecting ear, a connecting sleeve disposed on the front upper rocker arm corresponding to the position of the second ball joint connecting rod, an adjusting screw disposed through the connecting sleeve, an adjusting nut disposed on the adjusting screw, and a second ball joint connector disposed on the side of the connecting rod away from the connecting sleeve, the second ball joint connector being provided with a second spherical cavity and a second ball joint locking nut.

[0018] As a preferred technical solution, the bottom of the engine is mounted on a supporting base shell, one end of which is hinged to the vehicle frame via an elastic buffer sleeve, and the other end is fixedly connected to the vehicle frame.

[0019] As a preferred technical solution, an alarm is also installed on the vehicle frame, and a front bumper is also installed at the front end of the vehicle frame.

[0020] As a preferred technical solution, multiple foot pedals are also provided on both sides of the frame; the steering column is made of 3.5mm thick steel pipe and has an overall weld-free structure.

[0021] As a preferred technical solution, the steering tie rod fixing plate is made of 10mm thick steel plate, and its upper end is provided with a tapered mounting hole.

[0022] As a preferred technical solution, both the lower front rocker arm and the upper front rocker arm are equipped with grease fittings for adding lubricating oil to the moving parts.

[0023] The beneficial effects of this utility model are: First, the bottom of the steering column of this utility model is mounted on the front end of the vehicle frame through a bearing, which can achieve smooth rotation and improve the flexibility and responsiveness of steering control.

[0024] Second, the steering column adopts a 3.5mm thick steel pipe integral molding design without welding structure, ensuring its verticality and processing accuracy, and improving the steering accuracy and safety of the whole vehicle; the steering tie rod fixing plate installed on it is made of 10mm thick steel plate and is equipped with tapered holes, which further improves the connection strength and stability and prevents loosening.

[0025] 3. The lower front rocker arm is connected to the steering knuckle via a detachable ball joint structure, and the upper front rocker arm is connected to the steering knuckle via an adjustable ball joint structure. The overall structure is easy to disassemble, replace and adjust, improving the adaptability and maintainability of the front suspension system and meeting the driving needs of different terrains.

[0026] IV. Each ball joint adopts a tapered connection structure design, which makes the connection firm and not easy to loosen, improving the structural stability and safety of the ATV during bumpy or high-speed driving.

[0027] 5. The front shock absorption system is installed through the first and second shock absorber brackets set on the frame and the front lower control arm. The structure is stable, the cushioning performance is good, and the front shock absorption effect is effectively improved, thus improving driving comfort.

[0028] 6. Grease fittings are installed on multiple moving parts such as the front lower swingarm, front upper swingarm, and rear fork, which can be lubricated regularly to effectively reduce wear on moving parts and extend the service life of the entire vehicle.

[0029] 7. The engine is mounted in the middle of the frame via a support base. One end of the support base is hinged to the frame via an elastic buffer sleeve, and the other end is fixedly connected to the frame, forming a soft connection structure that can effectively absorb the vibration generated during engine operation and improve the stability and durability of the vehicle. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0032] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0033] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0034] Figure 4 This utility model Figure 2 A magnified view of a section at point B in the middle;

[0035] Figure 5 This is a schematic diagram of the overall structure of the present invention. Figure 3 ;

[0036] Figure 6 This is a partially enlarged view of the supporting base shell portion of this utility model;

[0037] Explanation of reference numerals in the attached figures:

[0038] 1. Frame; 20. Engine; 2. Steering handlebar; 3. Steering column; 23. Bearing; 16. Lower front swingarm; 13. Detachable ball joint structure; 9. Upper front swingarm; 7. Swingarm rotating connecting rod; 19. Connecting bracket; 10. Adjustable ball joint structure; 11. Connecting knuckle; 12. Front wheel connecting seat; 24. Steering tie rod fixing plate; 17. Steering tie rod; 6. First shock absorber bracket; 15. Second shock absorber bracket; 132. Locking nut; 133. First ball joint connector; 131. First connecting... 134. First ball joint connector; 135. First ball joint locking nut; 107. Second ball joint connector; 106. Second connecting ear; 101. Second ball joint connector; 102. Adjusting nut; 103. Adjusting nut; 104. Connecting sleeve; 105. Second ball joint locking nut; 107. Second ball joint connecting rod; 22. Support base shell; 21. Elastic buffer sleeve; 4. Alarm; 5. Front bumper; 18. Foot pedal; 8. Shock absorption system; 14. Ball joint connection structure. Detailed Implementation

[0039] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0040] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0041] like Figures 1-6 As shown, this embodiment provides a beach buggy frame, which includes a frame 1, a front wheel system, a rear wheel system, an engine 20 and other main components. The overall structure is reasonably designed to ensure the stability, handling and comfort of the frame 1, while also being easy to maintain and repair.

[0042] The frame 1 has a front wheel system at the front and a rear wheel system at the rear, with the engine 20 mounted in the middle. The frame 1 is made of high-strength steel and uses an integral frame structure, providing sufficient strength to support the ATV's movement on various terrains. Multiple support points are installed on the frame 1 to ensure stable fixing and connection of all components, especially when traveling at high speeds or on bumpy surfaces, effectively preventing deformation or damage.

[0043] The handlebar 2 is mounted on the front end of the frame 1, and a steering column 3 is located at the bottom of the handlebar 2. The steering column 3 extends towards the bottom of the frame 1 and is rotatably connected to the bottom of the frame 1 via a bearing 23. The bearing 23 connection allows the steering column 3 to rotate smoothly, thereby improving steering agility. This design effectively reduces the resistance when the rider operates the handlebar 2, enhancing handling comfort. The steering column 3 uses a 3.5mm thick steel tube with a seamless, weld-free structure, ensuring high verticality and strength, and reducing potential safety hazards associated with welding.

[0044] The front lower control arms 16 are located on both sides of the front wheel system. One end of the front lower control arms 16 is hinged to the frame 1, and the other end is equipped with a detachable ball joint structure 13. The hinged connection between the front lower control arms 16 and the frame 1 allows the frame 1 and the front wheel system to be flexibly adjusted to adapt to changes in terrain. The design of the detachable ball joint structure 13 facilitates the disassembly and assembly of the frame 1 and the front wheel system, making maintenance easier and allowing for quick and precise installation when replacing parts.

[0045] The upper front rocker arm 9 is positioned on both sides of the front wheel system. A rocker arm rotation connecting rod 7 is fixedly mounted at one end of each upper front rocker arm 9. A connecting bracket 19 is fixedly mounted on the frame 1 at a position corresponding to the rocker arm rotation connecting rod 7. The rocker arm rotation connecting rod 7 is rotatably mounted between the two connecting brackets 19. The other end of the upper front rocker arm 9 is equipped with an adjustable ball joint structure 10, allowing adjustment of the angle of the upper front rocker arm 9 as needed to adapt to different driving conditions and road conditions. The upper front rocker arm 9 and the lower front rocker arm 16 work together to ensure the stability of the front wheel system and effective vibration absorption during driving.

[0046] The connecting steering knuckles 11 are located on both sides of the front wheel system. The lower front swingarm 16 is connected to the connecting steering knuckles 11 via a detachable ball joint structure 13, and the upper front swingarm 9 is connected to the connecting steering knuckles 11 via an adjustable ball joint structure 10. A front wheel connecting seat 12 is provided on the connecting steering knuckles 11 to ensure a tight connection between the front wheel system and the frame 1. The fore-and-aft movement of the front wheel system can be precisely controlled through the coordinated action of the upper front swingarm 9 and the lower front swingarm 16, thereby improving the handling performance of the frame 1.

[0047] The front steering system is mounted on the steering column 3, with one end connected to the steering knuckle 11 via a ball joint connection structure 14, and the other end connected to the steering column 3 via the same ball joint connection structure 14. This steering system structure ensures effective transmission and adjustment between the frame 1 and the front wheel system during steering, thereby improving steering accuracy. The steering tie rod 17 fixing plate 24 is made of 10mm thick steel plate, with tapered mounting holes at its upper end to ensure a secure connection of the steering tie rod 17 and prevent steering instability due to loosening.

[0048] To improve the vehicle's comfort and stability on bumpy surfaces, this embodiment also includes a front shock absorber system 8. The top of the front shock absorber system 8 is rotatably mounted on a first shock absorber bracket 6, which is fixed to the vehicle frame 1. The bottom of the front shock absorber system 8 is rotatably mounted on a second shock absorber bracket 15, which is fixed to the front lower rocker arm 16. The front shock absorber system 8, elastically supported between the vehicle frame 1 and the front wheel system, effectively mitigates vibrations caused by uneven road surfaces during driving, improving ride comfort and reducing the burden on the vehicle frame 1 and the driver.

[0049] The detachable ball joint structure 13 includes a first connecting lug 131 fixedly mounted on the connecting horn 11, a first ball joint connecting rod passing through the first connecting lug 131, a locking nut 132 mounted on the first ball joint connecting rod, and a first ball joint connector 134 positioned on the front lower rocker arm 16 corresponding to the first ball joint connecting rod. The first ball joint connector 134 has a spherical cavity and the locking nut 132. This structure makes the installation and removal of the ball joint connector more convenient, ensuring a stable connection between the front lower rocker arm 16 and the connecting horn 11.

[0050] The adjustable ball joint structure 10 includes a second connecting lug 106 disposed on the connecting horn 11, a second ball joint connecting rod 107 fixedly disposed on the second connecting lug 106, a connecting sleeve 104 disposed on the front upper rocker arm 9 corresponding to the position of the second ball joint connecting rod 107, an adjusting screw disposed through the connecting sleeve 104, an adjusting nut 103 disposed on the adjusting screw, and a second ball joint connector 101 disposed on the side of the connecting rod away from the connecting sleeve 104, the second ball joint connector 101 having a spherical cavity and a locking nut 132 disposed therein. This structure provides adjustability, allowing the angle of the front upper rocker arm 9 to be adjusted according to specific driving needs, thereby optimizing the driving experience.

[0051] like Figure 5 As shown, the bottom of the engine 20 is mounted on the support base 22. One end of the support base 22 is hinged to the frame 1 via an elastic buffer sleeve 21, and the other end is fixedly connected to the frame 1. This design not only provides stable support for the engine 20, but also effectively absorbs the vibrations generated by the engine 20 during operation, thereby improving the stability of the entire vehicle.

[0052] An alarm 4 is also installed on the frame 1, and a front bumper 5 is also installed at the front of the frame 1. The alarm 4 can issue a warning in case of malfunction or danger, improving safety during use. The front bumper 5 can absorb some of the impact force in the event of a vehicle collision, protecting the occupant from injury. The alarm 4 can be installed or not.

[0053] Multiple foot pedals 18 are provided on both sides of the frame 1 to provide better support and comfort for the driver during driving, ensuring that the driver has enough space and safety when operating.

[0054] Both the lower front rocker arm 16 and the upper front rocker arm 9 are equipped with grease fittings for adding lubricating oil to the moving parts. This lubrication design effectively reduces wear on the front suspension system during operation, improving component lifespan and operational stability.

[0055] The ATV frame in this embodiment, while ensuring structural stability and flexible handling, greatly improves ease of use and maintenance, is highly adaptable, meets the driving needs of ATVs in complex terrain, and also takes into account the high efficiency of production and maintenance.

[0056] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A beach buggy frame, characterized in that, include: A frame (1) is provided with a front wheel system at the front end of the frame (1) and a rear wheel system at the rear end of the frame (1). An engine (20) is installed in the middle of the frame (1). A handlebar (2) is installed at the front end of the frame (1). A steering column (3) is provided at the bottom of the handlebar (2). The steering column (3) extends toward the bottom of the frame (1) and is rotatably connected to the bottom of the frame (1) via a bearing (23). A front lower rocker arm (16) is provided on both sides of the front wheel system. One end of the front lower rocker arm (16) is hinged to the frame (1), and the other end is provided with a detachable ball joint structure (13). A front upper rocker arm (9) is provided on both sides of the front wheel system. A rocker arm rotation connecting rod (7) is fixedly provided at one end of the front upper rocker arm (9). A connecting bracket (19) is fixedly provided on the frame (1) corresponding to the rocker arm rotation connecting rod (7). The rocker arm rotation connecting rod (7) is rotatably installed between the two connecting brackets (19). An adjustable ball joint structure (10) is provided at the other end of the front upper rocker arm (9). Connecting horns (11) are provided on both sides of the front wheel system. The lower front rocker arm (16) is connected to the connecting horns (11) through the detachable ball joint structure (13). The upper front rocker arm (9) is connected to the connecting horns (11) through the adjustable ball joint structure (10). A front wheel connecting seat (12) is provided on the connecting horns (11). The front steering system is respectively installed on the steering column (3). One end of the front steering system is connected to the connecting horn (11) through the ball joint connection structure (14), and the other end is connected to the steering column (3) through the ball joint connection structure (14).

2. The ATV frame according to claim 1, characterized in that: A steering tie rod (17) fixing piece (24) is fixedly installed on the steering column (3). The front steering system includes a steering tie rod (17). One end of the steering tie rod (17) is connected to the steering tie rod (17) fixing piece (24) through a ball joint connection structure (14), and the other end is connected to the connecting horn (11) through the ball joint connection structure (14).

3. The ATV frame according to claim 1, characterized in that: It also includes a front shock absorber system (8), the top of which is rotatably mounted on a first shock absorber bracket (6), the first shock absorber bracket (6) being fixed on the vehicle frame (1), and the bottom of which is rotatably mounted on a second shock absorber bracket (15), the second shock absorber bracket (15) being fixed on the front lower rocker arm (16).

4. The ATV frame according to claim 1, characterized in that: The detachable ball joint structure (13) includes a first connecting ear (131) fixedly mounted on the connecting horn (11), a first ball joint connecting rod passing through the first connecting ear (131), a locking nut (132) mounted on the first ball joint connecting rod, a first ball joint connector (134) being provided on the front lower rocker arm (16) corresponding to the position of the first ball joint connecting rod, and a first spherical cavity and a first ball joint locking nut (135)(132) being provided on the first ball joint connector (134).

5. The ATV frame according to claim 1, characterized in that: The adjustable ball joint structure (10) includes a second connecting ear (106) disposed on the connecting ram's horn (11), a second ball joint connecting rod (107) fixedly disposed on the second connecting ear (106), a connecting sleeve (104) disposed on the front upper rocker arm (9) corresponding to the position of the second ball joint connecting rod (107), an adjusting screw (103) disposed through the connecting sleeve (104), an adjusting nut (102) disposed on the adjusting screw, and a second ball joint connector (101) disposed on the side of the adjusting screw (103) away from the connecting sleeve (104), a second ball joint connector (101) disposed inside the second ball joint connector (101), a second spherical cavity and a second ball joint locking nut (105).

6. The ATV frame according to claim 1, characterized in that: The bottom of the engine (20) is mounted on a support base (22). One end of the support base (22) is hinged to the frame (1) through an elastic buffer sleeve (21), and the other end is fixedly connected to the frame (1).

7. The ATV frame according to claim 1, characterized in that: An alarm (4) is also installed on the frame (1), and a front bumper (5) is also installed at the front end of the frame (1).

8. The ATV frame according to claim 1, characterized in that: The frame (1) is also equipped with multiple foot pedals (18) on both sides; the steering column (3) is made of 3.5mm thick steel pipe and has no welding structure.

9. The ATV frame according to claim 2, characterized in that: The steering tie rod (17) fixing plate (24) is made of 10mm thick steel plate, and its upper end is provided with a tapered mounting hole.

10. The ATV frame according to claim 1, characterized in that: Both the lower front rocker arm (16) and the upper front rocker arm (9) are equipped with grease fittings for adding lubricating oil to the moving parts.

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