Frame of all terrain vehicle

Abstract

The utility model provides a frame of a dune buggy, and belongs to the technical field of vehicle parts. The technical problem that an existing dune buggy frame is low in connection strength is solved. The frame of the dune buggy comprises a lower tubular beam, a ceiling beam and a cabin supporting beam, the end of the lower tubular beam is arranged upwards, the end of the ceiling beam is arranged downwards, and the cabin supporting beam is arranged in a manner of being crossed with the lower end of the ceiling beam and the upper end of the lower tubular beam at the same time. The shock absorption support is provided with a columnar upper inserting part and a columnar lower inserting part, the upper inserting part and the lower inserting part are fixedly connected into a port of the ceiling beam and a port of the lower pipe beam respectively in an inserted mode, and the shock absorption support is fixedly connected to the peripheral face of the vehicle cabin supporting beam. The frame of the dune buggy can meet the requirement of high connection strength during working of the frame.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle components and relates to a frame of a beach vehicle. Background Art

[0002] An all-terrain vehicle (ATV) is a vehicle that can travel on any terrain, easily maneuvering over terrain difficult for ordinary vehicles. Commonly known in China as a beach buggy, it is also known as a "quad bike" because its structure is very similar to a motorcycle and many of its components are shared. This type of vehicle is versatile and unrestricted by road conditions. The structural strength and stability of the frame are crucial factors in determining the stability of an ATV.

[0003] The patent with authorization announcement number CN221138464U discloses a cradle-type frame of an all-terrain four-wheel off-road motorcycle, including two front beam tubes, two rear beam tubes, two upper beam tubes and two lower beam tubes. The lower ends of the two front beam tubes are connected to the same front end tube, each front beam tube is connected to each upper beam tube, the front section of the upper beam tube is bent downward and connected to the front beam tube, the middle section of the upper beam tube is horizontally arranged, the rear section of the upper beam tube is bent downward and connected to the lower beam tube, a mounting seat is connected between the front ends of the two upper beam tubes, the front section of the lower beam tube is bent upward and connected to the middle part of the front section of the upper beam tube, the middle section of the lower beam tube is horizontally arranged, the rear section of the lower beam tube is bent upward and connected to the middle part of the rear beam tube, the rear beam tube is horizontally connected to the upper part of the rear section of the upper beam tube, and a diagonal bracing tube is connected between the rear beam tube and the lower beam tube.

[0004] The above-mentioned frame structure still has some shortcomings: the position where the shock absorber is installed on the frame needs to withstand intermittent loads, and therefore has high requirements for the connection strength of the various tube beams of the frame. The intersection connection of the tube beams in different directions at the corresponding positions of the above-mentioned frame is achieved by welding the cross-section of the end of the tube beam to the outer peripheral surface of other tube beams. Due to the small end face welding area of the tube beam, the connection strength is low. Summary of the Invention

[0005] The utility model aims to solve the above problems existing in the prior art and provides a frame for a beach vehicle. The technical problem to be solved by the utility model is that the connection strength of the prior frame is low.

[0006] The purpose of this utility model can be achieved through the following technical solutions:

[0007] A frame for a beach vehicle includes a lower tube beam, a roof beam and a cabin support beam, the end of the lower tube beam is arranged upward, the end of the roof beam is arranged downward, and the cabin support beam is arranged crosswise with the lower end of the roof beam and the upper end of the lower tube beam. It is characterized in that the lower end of the roof beam and the upper end of the lower tube beam are connected to a shock-absorbing bracket, and the shock-absorbing bracket has a columnar upper plug-in part and a lower plug-in part, the upper plug-in part and the lower plug-in part are respectively inserted and fixedly connected to the port of the roof beam and the port of the lower tube beam, and the shock-absorbing bracket is fixedly connected to the outer peripheral surface of the cabin support beam.

[0008] The lower tube beam is arranged from bottom to top as a part of the vehicle frame to bear the load of the vehicle body. The roof beam is used to provide an installation foundation for the roof assembly of the beach car. The cabin support beam can provide support and installation foundation for surrounding components around the circumference of the cabin. By arranging a shock-absorbing bracket between the lower end of the roof beam and the upper end of the lower tube beam, the lower end of the roof beam is plugged and fixedly connected to the upper plug-in portion, the upper end of the lower tube beam is plugged and fixedly connected to the lower plug-in portion, and the shock-absorbing bracket is fixedly connected to the outer peripheral surface of the cabin support beam. In this way, the upper plug-in portion and the lower plug-in portion can respectively form contact with the inner walls of the roof beam and the lower tube beam to increase the welding area and strength, and can also realize radial positioning of the roof beam and the lower tube beam, effectively ensuring the connection strength at this location. At the same time, compared with the end section of the circular tube, the shock-absorbing bracket is conducive to achieving a larger area of welding with the outer peripheral surface of the cabin support beam, effectively improving the connection strength, and thereby forming a high-strength connection relationship at the intersection of the lower end of the roof beam, the upper end of the lower tube beam and the cabin support beam, meeting the high connection strength requirements of the frame operation.

[0009] In the ATV frame, the shock-absorbing bracket has a tile-shaped connection portion that fits securely with the outer periphery of the cabin support beam. This further increases the contact area between the shock-absorbing bracket and the cabin support beam, ensuring connection strength and facilitating quick positioning prior to welding.

[0010] In the above-mentioned beach vehicle frame, the shock-absorbing bracket includes a frame body and a splice, the upper plug-in portion is located on the splice, and the splice has a through-hole extending radially along the upper plug-in portion. The frame body and the splice are fitted together and fixedly connected by a connector extending through the through-hole. Due to tolerances, it is often difficult to simultaneously ensure the precise relative positions of the lower end of the roof beam, the upper end of the lower tube beam, and the cabin support beam during the welding process. Sometimes, a large force is required to achieve the predetermined position, and even slight shaking will affect the welding effect. However, by configuring the shock-absorbing bracket as a separately connected frame body and splice, during the initial welding, it is only necessary to ensure the positional relationship between the upper end of the lower tube beam and the cabin support beam and the frame body before welding. The lower end of the roof beam and the splice are then welded independently. Afterwards, force is applied to align the splice with the frame body and the connector is added to achieve the fixed connection, ensuring smooth assembly.

[0011] In the above-mentioned beach car frame, the frame is an integral casting, which helps to ensure the structural strength and stability of the frame as a whole and the connection strength of the frame.

[0012] In the ATV frame, the shock-absorbing bracket has two outwardly extending shock-absorbing mounting plates. Both plates are vertically and parallel, and the hinge holes on the two plates are coaxially arranged. This facilitates connecting the ends of existing shock absorbers between the shock-absorbing mounting plates, allowing the operating load of the shock absorber to be first transferred to the shock-absorbing bracket with greater load-bearing capacity before being distributed to other locations, thereby ensuring a long service life.

[0013] In the frame of the beach vehicle, the outer periphery of the shock-absorbing bracket is also provided with a plurality of screw holes, which facilitates direct installation of the beach vehicle body parts on the shock-absorbing bracket via the screw connectors, thereby improving the connection stability of the body parts.

[0014] Compared with the prior art, the advantages of the present invention are as follows:

[0015] The frame of the beach car can form a high-strength connection relationship at the intersection of the lower end of the roof beam, the upper end of the lower tube beam and the cabin support beam, so as to effectively meet the strength requirements for the installation and use of the frame shock absorber. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the vehicle frame of this embodiment.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of a shock-absorbing bracket in this embodiment.

[0018] Figure 3 It is a schematic diagram of the three-dimensional explosion structure of a shock-absorbing bracket in this embodiment.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of another shock-absorbing bracket in this embodiment.

[0020] In the figure, 1, lower tube beam; 2, roof beam; 3, cabin support beam;

[0021] 4. Shock-absorbing bracket; 41. Upper plug-in portion; 42. Lower plug-in portion; 43. Connecting portion; 44. Frame; 45. Assembly piece; 451. Through hole; 46. Shock-absorbing mounting plate; 461. Hinge hole; 47. Screw hole. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] like Figure 1-4As shown, the frame of this beach vehicle includes a lower tube beam 1, a roof beam 2, and a cabin support beam 3. The end of the lower tube beam 1 is arranged upward. There are two roof beams 2, both arranged longitudinally. Both ends of the roof beam 2 are arranged downward in a U-shape. The cabin support beam 3 is arranged generally horizontally and intersects with the lower end of the roof beam 2 and the upper end of the lower tube beam 1. There are four lower tube beams 1. The lower end of the roof beam 2 and the upper end of the lower tube beam 1 are fixedly connected by a shock-absorbing bracket 4. The shock-absorbing bracket 4 has an upper plug-in portion 41 and a lower plug-in portion 42 in the shape of a boss column. The upper plug-in portion 41 and the lower plug-in portion 42 are respectively inserted and welded into the ends of the roof beam 2 and the lower tube beam 1. The shock-absorbing bracket 4 is welded and fixed to the outer circumference of the cabin support beam 3. Specifically, the shock-absorbing bracket 4 has a tile-shaped connecting portion 43, which is fixedly connected to the outer circumference of the cabin support beam 3. Specifically, the shock-absorbing bracket 4 located at the rear side of the vehicle frame is different from the shock-absorbing bracket 4 at the front side. The connection portion 43 of the shock-absorbing bracket 4 at the rear side of the vehicle frame is horizontally arranged, and the vehicle cabin support beam 3 is supported on the connection portion 43 to ensure structural stability. Preferably, the shock-absorbing bracket 4 includes a frame body 44 and a splicing part 45. The upper plug-in part 41 is located on the splicing part 45. The splicing part 45 has two through holes 451 radially extending along the upper plug-in part 41. The frame body 44 and the splicing part 45 are fitted together and fixedly connected by bolts (not shown) passing through the through holes 451. The shock-absorbing bracket 4 has two shock-absorbing mounting plates 46 extending outward. The two shock-absorbing mounting plates 46 are both vertically arranged and parallel. The hinge holes 461 on the two shock-absorbing mounting plates 46 are coaxially arranged. The frame body 44 is an integral casting. The outer periphery of the shock-absorbing bracket 4 located at the front side of the vehicle frame also has three screw holes 47.

[0024] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A frame of a beach vehicle, comprising a lower tube beam (1), a roof beam (2) and a cabin support beam (3), wherein the end of the lower tube beam (1) is arranged upward, the end of the roof beam (2) is arranged downward, and the cabin support beam (3) is arranged to cross the lower end of the roof beam (2) and the upper end of the lower tube beam (1), and is characterized in that: A shock-absorbing bracket (4) is connected between the lower end of the roof beam (2) and the upper end of the lower tube beam (1). The shock-absorbing bracket (4) has a columnar upper plug-in portion (41) and a lower plug-in portion (42). The upper plug-in portion (41) and the lower plug-in portion (42) are respectively inserted and fixedly connected to the port of the roof beam (2) and the port of the lower tube beam (1). The shock-absorbing bracket (4) is fixedly connected to the outer peripheral surface of the cabin support beam (3).

2. The frame of the beach vehicle according to claim 1, characterized in that: The shock-absorbing bracket (4) has a tile-shaped connecting portion (43), and the connecting portion (43) is fitted and fixedly connected to the outer peripheral surface of the cabin support beam (3).

3. The frame of the beach vehicle according to claim 1 or 2, characterized in that: The shock-absorbing bracket (4) comprises a frame body (44) and a splicing piece (45); the upper plug-in portion (41) is located on the splicing piece (45); the splicing piece (45) has a through hole (451) radially extending through the upper plug-in portion (41); the frame body (44) and the splicing piece (45) are attached to each other and fixedly connected via a connecting piece passing through the through hole (451).

4. The frame of the beach vehicle according to claim 3, characterized in that: The frame (44) is an integral casting.

5. The frame of the beach vehicle according to claim 1 or 2, characterized in that: The shock-absorbing bracket (4) has two shock-absorbing mounting plates (46) extending outwards. The two shock-absorbing mounting plates (46) are both vertically arranged and parallel to each other. The hinge holes (461) on the two shock-absorbing mounting plates (46) are coaxially arranged.

6. The frame of the beach vehicle according to claim 1 or 2, characterized in that: The outer periphery of the shock-absorbing bracket (4) is also provided with a plurality of screw holes (47).

Images