Rear-wheel drive beach buggy

Abstract

The present invention relates to a rear-wheel-drive beach vehicle, comprising a rear-wheel-drive beach vehicle, comprising a first frame, a second frame being detachably connected to the top of the first frame, a first shock-absorbing mechanism being provided at one end of the first frame, a second shock-absorbing mechanism being provided at the other end of the first frame, the first shock-absorbing mechanism and the second shock-absorbing mechanism being respectively connected to a roller mechanism, a steering mechanism being further provided inside the first frame, the steering mechanism being connected to the first shock-absorbing mechanism, a driving mechanism being provided inside the second shock-absorbing mechanism, and the driving mechanism being connected to the roller mechanism; the detachable connection between the first frame and the second frame of the present invention requires only the second frame to be disassembled during transportation and placed in a corresponding vacant position reserved in a cockpit of the first frame, thereby greatly reducing the volume of the package during transportation and reducing the transportation cost.

Description

Technical Field

[0001] The invention relates to the technical field of beach vehicles, and in particular to a rear-drive beach vehicle. Background Art

[0002] All Terrain Vehicle (ATV) is abbreviated as ATV, commonly known as "beach car". It adopts independent suspension and double rocker arm in the front. The engine is fixed separately from the frame to ensure driving comfort. The middle bridge is integral. Some models have differential and gear shifting, which makes gear shifting easy and sharp turns stable. The beach car has a novel appearance design and unique style.

[0003] The application announcement number is CN117644762A, which discloses an all-terrain vehicle. Combined with its specification and drawings, it includes a frame, a steering mechanism, a front suspension component, a rear suspension component, a rear axle component, and an engine assembly, wherein the frame includes a steel tube truss structure frame body, on which a cockpit, a steering mount, a front suspension mount, and a rear suspension mount are provided. The steel pipes of the frame body are made of high-strength low-carbon steel pipes welded by carbon dioxide shielded welding, which fully utilizes the strength of the material, saves materials, reduces dead weight and increases rigidity. However, the entire frame is an integrated structure. During transportation, if the cross-section remains unchanged, a taller frame will obviously increase the transportation cost. Moreover, this frame also plays an anti-rolling role. If the top is damaged during use, it is obviously inconvenient to repair the frame with an integrated structure, which increases the subsequent maintenance cost.

[0004] The authorization announcement number is CN219257490U, which discloses an electric all-terrain vehicle. Combined with its specification and drawings, it includes a frame, a body cover, a walking assembly, a drive system, a transmission system, a battery assembly and an electronic control assembly. However, its frame includes a first frame assembly and a second frame assembly, and is connected in an integral molding, which is also not conducive to maintenance and transportation. Summary of the invention

[0005] The present invention mainly aims at the problems existing in the use of the above-mentioned beach car, and invents a rear-wheel drive beach car. The first frame and the second frame are detachably connected. When transporting, it is only necessary to remove the second frame and place it in the corresponding empty space reserved for the cockpit on the first frame, thereby reducing the volume of the package during transportation; if the second frame is damaged and deformed due to the squeezing of stones or trees, the second frame can be directly removed and replaced separately, and the undamaged first frame can be retained; when the entire beach car engine is running, no matter it is the vibration generated by the engine when working, or the vibration generated by the entire second frame when it is hit by a pothole section, the four ends of the driving support frame will rotate inside the buffer support block, thereby reducing the vibration effect on the driving area.

[0006] The inventive objective of the present invention is achieved through the following technical solutions: a rear-wheel drive beach vehicle, comprising a first frame, a second frame being detachably connected to the top of the first frame, a first shock absorbing mechanism being provided at one end of the first frame, a second shock absorbing mechanism being provided at the other end of the first frame, the first shock absorbing mechanism and the second shock absorbing mechanism being respectively connected to a roller mechanism, a steering mechanism being further provided inside the first frame, the steering mechanism being connected to the first shock absorbing mechanism, a driving mechanism being provided inside the second shock absorbing mechanism, and the driving mechanism being connected to the roller mechanism.

[0007] Preferably, the first frame comprises a plurality of first cross bars, a plurality of first vertical bars, a plurality of first diagonal bars, a plurality of first curved tubes and a frame bottom plate, a plurality of first cross bars are placed side by side on the surface of the frame bottom plate, a plurality of first vertical bars are arranged on the surface of the first cross bars, the outer sides of the first vertical bars are connected to the first diagonal bars, a plurality of first curved tubes are arranged at one end of the first vertical bars and the first diagonal bars, and the first frame is connected in an integral manner.

[0008] Preferably, the second frame comprises a plurality of second cross bars, a plurality of second vertical bars and a plurality of second diagonal bars, a quick-release socket being provided at one end of the plurality of first diagonal bars, each of the second vertical bar and the second diagonal bar being plugged into the surface of the quick-release socket, a limiting through hole being provided at the end of each of the first diagonal bar, the second vertical bar and the second diagonal bar for installing a bolt, and adjacent second vertical bars are connected by each second cross bar.

[0009] Preferably, the first shock-absorbing mechanism includes a shock-absorbing support arm, a shock-absorbing support block and a buffer structure, shock-absorbing support blocks are provided on the surfaces of the first vertical rod and the first diagonal rod, one end of each of the shock-absorbing support arms is rotatably connected to the inside of the shock-absorbing support block, the other end of each of the shock-absorbing support arms is connected to a roller mechanism, a shock-absorbing support block is provided on the surface of at least one shock-absorbing support arm, one end of the buffer structure is rotatably connected to the shock-absorbing support block on the surface of the first diagonal rod, and the other end is rotatably connected to the shock-absorbing support block on the surface of the shock-absorbing support arm.

[0010] Preferably, the second shock-absorbing mechanism includes a shock-absorbing support frame, a frame support block, a shock-absorbing support block and a buffer structure, the cross-section of the shock-absorbing support frame is U-shaped, a plurality of frame support blocks are arranged on the surface of the first vertical rod, the end of the shock-absorbing support frame is rotatably connected to the inside of the frame support block, a plurality of shock-absorbing support blocks are arranged on the surface of the shock-absorbing support frame and the surface of the first vertical rod, one end of the buffer structure is rotatably connected to the shock-absorbing support block on the surface of the first vertical rod, and the other end is rotatably connected to the shock-absorbing support block on the surface of the shock-absorbing support frame.

[0011] Preferably, the buffer structure includes a damper body, a metal spring and a damper slide rod, the damper slide rod is slidably connected to the inside of the damper body, a metal spring is provided between the damper body and the damper slide rod, the deformation of the metal spring changes with the sliding of the damper slide rod, and circular bosses are provided at the ends of the damper body and the ends of the damper slide rod, and the circular bosses can be rotatably connected to the inside of the shock-absorbing support block.

[0012] Preferably, the roller mechanism includes a metal wheel hub, a rubber tire and a driving shaft, the other end of each shock-absorbing support arm is connected to a plurality of support arm fixing plates, a wheel hub steering shaft is rotatably provided between the support arm fixing plates, one end of the wheel hub steering shaft is connected to a wheel hub support block, a plurality of shaft support blocks are provided at the bottom of the second shock-absorbing mechanism, a driving shaft is rotatably provided inside the shaft support block, the driving shaft is transmission-connected to the driving mechanism, both ends of the driving shaft are connected to metal wheel hubs, one end of each wheel hub support block is connected to the metal wheel hub, and a rubber tire is provided on the outside of the metal wheel hub.

[0013] Preferably, the driving mechanism includes an engine, a driving support frame, and a buffer support block. A plurality of buffer support blocks are also provided on the surface of the shock-absorbing support frame. The end of the driving support frame can be rotatably connected to the inside of the buffer support block. The engine is arranged inside the driving support frame. The engine is transmitted through the sprocket on its output shaft that is matched with the corresponding chain connected to the sprocket on the driving shaft.

[0014] Preferably, the steering mechanism includes a steering wheel support plate, a steering support column, a tie rod support column, a metal screw, a first tie rod, a driving screw, a first U-shaped block, a second U-shaped block, a steering wheel support column and a steering wheel. The steering support column is internally slidably connected with the tie rod support column and the metal screw. Both ends of the metal screw are fixedly connected to the tie rod support column. A first tie rod is provided inside each of the tie rod support columns. Each of the first tie rods is transmission-connected to the wheel hub support block. A driving screw is provided outside the steering support column. One end of the driving screw is transmission-connected to the metal screw. Rotation of the driving screw causes the metal screw to move left and right. A first U-shaped block is provided at the other end of the driving screw. The first U-shaped block is transmission-connected to the second U-shaped block. One end of the second U-shaped block is connected to the steering wheel support column. The end of the steering wheel support column is connected to the steering wheel. The steering wheel support column is connected to the first frame through a steering wheel support plate.

[0015] Preferably, a rearview mirror and a first lighting lamp are also provided on the surface of the first frame, and a horn and a second lighting lamp are also provided on the surface of the second frame. Such arrangement is for the convenience of the user to observe the surroundings of the vehicle, use the ATV at night and remind passers-by.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The detachable connection between the first frame and the second frame. During transportation, only the second frame needs to be removed and placed in the corresponding empty space reserved for the cockpit on the first frame, which greatly reduces the volume of the package during transportation and reduces the transportation cost; 2. If the second frame is damaged or deformed due to squeezing by stones or trees, the second frame can be directly removed and replaced separately, and the undamaged first frame can be retained, which obviously reduces the maintenance cost and brings convenience to users; 3. During the operation of the entire beach car engine, whether it is the vibration generated by the engine when working, or the vibration generated by the entire second frame when it is subjected to potholes, the four ends of the driving support frame will rotate inside the buffer support block, thereby reducing the vibration effect on the driving area and optimizing the user's riding experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention;

[0018] Figure 2 A three-dimensional diagram of the present invention after two rubber tires are removed;

[0019] Figure 3 A three-dimensional diagram of the present invention after two rubber tires are removed;

[0020] Figure 4 For the present invention Figure 3 An enlarged view of part A in FIG.

[0021] Figure 5 It is a partial stereogram of the present invention;

[0022] Figure 6 It is a partial stereogram of the present invention;

[0023] Figure 7 It is a partial stereogram of the present invention;

[0024] Figure 8 This is a partial enlarged view of the steering support column of the present invention after being removed.

[0025] Markings in the figure: 1. first frame; 11. first cross bar; 12. first vertical bar; 13. first oblique bar; 14. first curved pipe; 15. frame bottom plate; 16. rearview mirror; 17. first lighting lamp; 131. quick release socket; 2. second frame; 21. second cross bar; 22. second vertical bar; 23. second oblique bar; 24. limit through hole; 25. speaker; 26. second lighting lamp; 3. first shock absorbing mechanism; 31. shock absorbing support block; 32. shock absorbing support arm; 33. buffer structure; 34. wheel hub support block; 321. support arm fixing plate; 331. damper body; 332. damper slide bar; 333. metal spring Spring; 334, circular boss; 341, wheel hub steering shaft; 4, second shock absorbing mechanism; 41, shock absorbing support frame; 42, frame support block; 43, shaft support block; 5, roller mechanism; 51, support frame; 52, rubber tire; 53, drive shaft; 6, steering mechanism; 60, steering wheel support plate; 61, steering support column; 62, tie rod support column; 63, metal screw; 64, first tie rod; 65, drive screw; 66, first U-shaped block; 67, second U-shaped block; 68, steering wheel support column; 69, steering wheel; 7, drive mechanism; 71, buffer support block; 72, drive support frame; 73, engine. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0027] like Figures 1 to 8As shown, a rear-wheel drive beach vehicle comprises a first frame 1, the top of the first frame 1 is detachably connected to a second frame 2, the steel pipes of the first frame 1 and the second frame 2 are both made of carbon structural steel, the first frame 1 comprises a plurality of first cross bars 11, a plurality of first vertical bars 12, a plurality of first diagonal bars 13, a plurality of first curved pipes 14 and a frame bottom plate 15, a plurality of first cross bars 11 are placed in parallel on the surface of the frame bottom plate 15 by welding, a plurality of first vertical bars 12 are arranged on the surface of the first cross bars 11 by welding, and the outer side of the first vertical bars 12 is connected to the first curved pipes 14 by welding. A diagonal rod 13, a plurality of the first curved pipes 14 are arranged at one end of the first vertical rod 12 and the first diagonal rod 13 by welding, and the welding method makes the entire first frame 1 integrated, has better support, and can protect the driver when the whole vehicle rolls over, the second frame 2 includes a plurality of second cross bars 21, a plurality of second vertical rods 22 and a plurality of second diagonal rods 23, and a plurality of the first diagonal rods 13 are provided with a quick-release socket 131 at one end, and each of the second vertical rods 22 and the second diagonal rod 23 is detachably plugged into the surface of the quick-release socket 131, and each of the first diagonal rods 13, the second vertical rod ... 2 and the ends of the second diagonal rods 23 are provided with limiting through holes 24 for installing bolts, the adjacent second vertical rods 22 are connected by welding through each second cross bar 21, and the side of each second vertical rod 22 is connected with the second diagonal rod 23 by welding. In this way, when the entire second frame 2 is also an integrated frame, the end of the second diagonal rod 23 can be inserted into the surface of the quick-release socket 131, and the bolts are installed in the limiting through holes 24 to achieve a detachable connection between the first frame 1 and the second frame 2. When transporting, it is only necessary to remove the second frame 2 and leave a space in the cockpit on the first frame 1. The corresponding free space can be placed, which greatly reduces the volume of the package during transportation and reduces the transportation cost. Furthermore, if the second frame 2 is damaged or deformed due to the squeezing of stones or trees, the second frame 2 can be directly removed and replaced, and the undamaged first frame 1 can be retained. This obviously reduces the maintenance cost and brings convenience to users. A rearview mirror 16 and a first lighting lamp 17 are also provided on the surface of the first frame 1, and a horn 25 and a second lighting lamp 26 are also provided on the surface of the second frame 2. This arrangement is for the convenience of users to use the beach car at night and to remind passers-by.

[0028] In this embodiment, a first shock absorbing mechanism 3 is provided at one end of the first frame 1, and a second shock absorbing mechanism 4 is provided at the other end of the first frame 1. The first shock absorbing mechanism 3 and the second shock absorbing mechanism 4 are transmission-connected with a roller mechanism 5. Specifically, the first shock absorbing mechanism 3 includes a shock absorbing support arm 32, a shock absorbing support block 31 and a buffer structure 33. The surfaces of the first vertical rod 12 and the first oblique rod 13 are provided with a shock absorbing support block 31 by welding. One end of each of the shock absorbing support arms 32 can be rotatably connected to the inside of the shock absorbing support block 31, and the other end of each of the shock absorbing support arms 32 is connected to the roller mechanism 5. The surface of at least one shock absorbing support arm 32 is also provided with a shock absorbing support block 31 by welding. One end of the buffer structure 33 A shock-absorbing support block 31 rotatably connected to the surface of the first oblique rod 13, and the other end of the shock-absorbing support block 31 rotatably connected to the surface of the shock-absorbing support arm 32, the second shock-absorbing mechanism 4 includes a shock-absorbing support frame 41, a frame support block 42, a shock-absorbing support block 31 and a buffer structure 33, the cross-section of the shock-absorbing support frame 41 is U-shaped, the surface of the first vertical rod 12 is provided with a plurality of frame support blocks 42 by welding, the end of the shock-absorbing support frame 41 is rotatably connected to the inside of the frame support block 42, the surface of the shock-absorbing support frame 41 and the surface of the first vertical rod 12 are provided with a plurality of shock-absorbing support blocks 31, one end of the buffer structure 33 is rotatably connected to the shock-absorbing support block 31 on the surface of the first vertical rod 12, and the other end The shock absorbing support block 31 is rotatably connected to the surface of the shock absorbing support frame 41, the buffer structure 33 includes a damper body 331, a metal spring 333 and a damper slide rod 332, the damper slide rod 332 is slidably connected to the inside of the damper body 331, a metal spring 333 is arranged between the damper body 331 and the damper slide rod 332, the deformation of the metal spring 333 changes with the sliding of the damper slide rod 332, the end of the damper body 331 and the end of the damper slide rod 332 are both provided with a circular boss 334, the circular boss 334 is rotatably connected to the inside of the shock absorbing support block 31, the roller mechanism 5 includes a metal hub 51, a rubber tire 52 and a driving shaft 53 The other end of each of the shock absorbing support arms 32 is connected to a plurality of support arm fixing plates 321, a wheel hub steering shaft 341 is rotatably provided between the support arm fixing plates 321, one end of the wheel hub steering shaft 341 is connected to a wheel hub support block 34, a plurality of shaft support blocks 43 are welded at the bottom of the second shock absorbing mechanism 4, a driving shaft 53 is rotatably provided inside the shaft support block 43, the driving shaft 53 is transmission-connected to the driving mechanism 7, both ends of the driving shaft 53 are connected to metal wheel hubs 51, one end of each of the wheel hub support blocks 34 is connected to the metal wheel hub 51, a rubber tire 52 is provided on the outside of the metal wheel hub 51, after such arrangement, whenever the rubber tire 52 on the left side encounters a pothole road surface,The metal wheel hub 51 will drive the wheel hub support block 34 to move up and down. During the movement of the wheel hub support block 34, the shock absorbing support arm 32 will rotate inside the shock absorbing support block 31. During the rotation, the shock absorbing support block 31 above the shock absorbing support arm 32 will also move, so that the circular boss 334 will rotate relative to the shock absorbing support block 31 above the shock absorbing support arm 32. During the rotation of the circular boss 334, the distance between the damper body 331 and the damper slide bar 332 will continue to shorten. During the shortening process, the metal spring 333 will deform, thereby offsetting some of the force applied to the metal wheel hub 51. 333 returns to its original length, and the distance between the damper body 331 and the damper slide bar 332 also returns to normal, so that the entire rubber tire 52 achieves a shock-absorbing effect. Whenever the rubber tire 52 on the right side of the entire beach car encounters a pothole road, the entire shock-absorbing support frame 41 will rotate relative to the frame support block 42. During the rotation of the shock-absorbing support frame 41, the buffer structure 33 rotatably provided between the shock-absorbing support block 31 on the surface of the first vertical rod 12 and the shock-absorbing support block 31 on the surface of the shock-absorbing support frame 41 will also perform shock absorption and buffering in the same way, which also plays a shock-absorbing effect on the entire rubber tire 52.

[0029] In this embodiment, a driving mechanism 7 is provided inside the second shock absorbing mechanism 4, and the driving mechanism 7 includes an engine 73, a driving support frame 72, and a buffer support block 71. A plurality of buffer support blocks 71 are also provided on the surface of the shock absorbing support frame 41. The ends of the driving support frame 72 are rotatably connected to the inside of the buffer support block 71. The engine 73 is arranged inside the driving support frame 72. The engine 73 is connected to the sprocket on the driving shaft 53 through a chain transmission through a sprocket at its output end. After such arrangement, no matter the vibration generated by the engine 73 when working, or the vibration generated by the entire second frame 2 when being subjected to a pothole section, the four ends of the driving support frame 72 will rotate inside the buffer support block 71. The engine 73 can drive the driving shaft 53 to rotate through the chain when working, and the rubber tire 52 located on the right side of the entire beach car will generate driving force when rotating, driving the entire car to move forward. It should be noted that the braking system uses hydraulic brakes in the prior art for braking. The first shock absorbing mechanism 3 is internally connected with a steering mechanism 6, and the steering mechanism 6 includes a steering wheel support plate 60, a steering support column 61, a tie rod support column 62, a metal screw 63, a first tie rod 64, a driving screw 65, a first U-shaped block 66, a second U-shaped block 67, a steering wheel support column 68 and a steering wheel 69. The internal sliding connection of the steering support column 61 There are a tie rod support column 62 and a metal screw 63, both ends of the metal screw 63 are fixedly connected to the tie rod support column 62, a first tie rod 64 is arranged inside each tie rod support column 62, each first tie rod 64 is connected to the wheel hub support block 34 by transmission, a driving screw 65 is arranged outside the steering support column 61, one end of the driving screw 65 is connected to the metal screw 63 by transmission, the rotation of the driving screw 65 makes the metal screw 63 move left and right, the other end of the driving screw 65 is provided with a first U-shaped block 66, the first U-shaped block 66 is connected to the second U-shaped block 67 through a cross-bit transmission, one end of the second U-shaped block 67 is connected to a steering wheel support column 68, and the end of the steering wheel support column 68 is connected to the steering wheel 69, the steering wheel support column 68 is connected to the first frame 1 through the steering wheel support plate 60. After being set in this way, whenever the user turns the steering wheel 69, the steering wheel support column 68 can drive the second U-shaped block 67 to rotate, and the second U-shaped block 67 can drive the first U-shaped block 66 to rotate, wherein the angle between the second U-shaped block 67 and the first U-shaped block 66 can be changed, so as to realize the front and rear adjustment of the steering wheel support plate 60. When the first U-shaped block 66 rotates, one end of the driving screw 65 will drive the metal screw 63 to move, and the metal screw 63 will pull the relative position of the pull rod support column 62 during the movement, so that the steering support column 61 can pull the wheel hub steering shaft 341 to move left and right, thereby driving the wheel hub support block 34 to move left and right.The steering of the entire beach car is realized during operation.

[0030] Working principle and use method of the present invention:

[0031] First, the user sits on the driving seat of the beach car. When the engine 73 is working, the sprocket at its end can drive the driving shaft 53 to rotate through the chain. When rotating, the rubber tire 52 on the right side of the entire beach car will generate driving force to drive the entire car forward. Regardless of the vibration generated by the engine 73 when working, or the vibration generated by the entire second frame 2 when it is hit by a pothole section, the four ends of the driving support frame 72 will rotate inside the buffer support block 71, thereby reducing the vibration effect on the driving area and optimizing the user's riding experience. When the rubber tire 52 on the left side encounters a pothole road, the metal wheel hub 51 will bring The wheel hub support block 34 moves up and down. During the movement of the wheel hub support block 34, the shock absorbing support arm 32 rotates inside the shock absorbing support block 31. During the rotation, the shock absorbing support block 31 above the shock absorbing support arm 32 also moves, so that the circular boss 334 rotates relative to the shock absorbing support block 31 above the shock absorbing support arm 32. During the rotation of the circular boss 334, the distance between the damper body 331 and the damper slide bar 332 will continue to shorten. During the shortening process, the metal spring 333 will deform, thereby offsetting some of the force applied to the metal hub 51. After that, the metal spring 333 returns to its original length, and the damper body 331 and the damper The distance between the slide bars 332 also returns to normal, and the shock-absorbing effect is achieved for the entire rubber tire 52. Whenever the rubber tire 52 located on the right side of the entire beach car encounters a pothole road, the entire shock-absorbing support frame 41 will rotate relative to the frame support block 42. During the rotation of the shock-absorbing support frame 41, the buffer structure 33 rotatably provided between the shock-absorbing support block 31 on the surface of the first vertical rod 12 and the shock-absorbing support block 31 on the surface of the shock-absorbing support frame 41 will also perform shock absorption and buffering in the same way, which also plays a shock-absorbing effect on the entire rubber tire 52. The braking system uses hydraulic brakes in the prior art for braking. When the direction needs to be adjusted, the user rotates the direction Disc 69, the steering wheel support column 68 can drive the second U-shaped block 67 to rotate, and the second U-shaped block 67 can drive the first U-shaped block 66 to rotate, wherein the angle between the second U-shaped block 67 and the first U-shaped block 66 can be changed, so as to realize the front and rear adjustment of the steering wheel support plate 60, when the first U-shaped block 66 rotates, one end of the driving screw 65 will drive the metal screw 63 to move, and the metal screw 63 will pull the relative position of the pull rod support column 62 during the movement, so that the steering support column 61 can pull the wheel hub steering shaft 341 to move left and right, thereby driving the wheel hub support block 34 to move left and right, realizing the steering of the entire beach car during operation.

[0032] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A rear-wheel drive beach vehicle, comprising a first frame (1), characterized in that: The top of the first frame (1) is detachably connected to a second frame (2); one end of the first frame (1) is provided with a first shock absorbing mechanism (3); the other end of the first frame (1) is provided with a second shock absorbing mechanism (4); the first shock absorbing mechanism (3) and the second shock absorbing mechanism (4) are respectively connected to a roller mechanism (5); a steering mechanism (6) is further provided inside the first frame (1); the steering mechanism (6) is connected to the first shock absorbing mechanism (3); a driving mechanism (7) is provided inside the second shock absorbing mechanism (4); the driving mechanism (7) is connected to the roller mechanism (5); the first frame (1) comprises a plurality of first cross bars (11), a plurality of first vertical bars (12) and a plurality of first horizontal bars (11). , a plurality of first diagonal bars (13), a plurality of first curved tubes (14) and a frame bottom plate (15); a plurality of first cross bars (11) are arranged in parallel on the surface of the frame bottom plate (15); a plurality of first vertical bars (12) are arranged on the surface of the first cross bar (11); the outer side of the first vertical bar (12) is connected to the first diagonal bar (13); a plurality of first curved tubes (14) are arranged at one end of the first vertical bar (12) and the first diagonal bar (13); the first frame (1) is connected in an integral manner; the first shock absorbing mechanism (3) comprises a shock absorbing support arm (32), a shock absorbing support block (31) and a buffer structure (33); the surfaces of the first vertical bar (12) and the first diagonal bar (13) are provided with a shock absorbing A support block (31), one end of each of the shock-absorbing support arms (32) is rotatably connected to the inside of the shock-absorbing support block (31), the other end of each of the shock-absorbing support arms (32) is connected to a roller mechanism (5), a surface of at least one of the shock-absorbing support arms (32) is provided with a shock-absorbing support block (31), one end of the buffer structure (33) is rotatably connected to the shock-absorbing support block (31) on the surface of the first inclined rod (13), and the other end is rotatably connected to the shock-absorbing support block (31) on the surface of the shock-absorbing support arm (32), the roller mechanism (5) comprises a metal hub (51), a rubber tire (52) and a driving shaft (53), the other end of each of the shock-absorbing support arms (32) is connected to A plurality of support arm fixing plates (321) are provided, and a wheel hub steering shaft (341) is rotatably provided between the support arm fixing plates (321). One end of the wheel hub steering shaft (341) is connected to a wheel hub support block (34). A plurality of rotating shaft support blocks (43) are provided at the bottom of the second shock absorbing mechanism (4). A driving rotating shaft (53) is rotatably provided inside the rotating shaft support block (43). The driving rotating shaft (53) is transmission-connected to a driving mechanism (7). Both ends of the driving rotating shaft (53) are connected to metal wheel hubs (51). One end of each of the wheel hub support blocks (34) is connected to the metal wheel hub (51). A rubber tire (52) is provided outside the metal wheel hub (51).

2. The rear-wheel drive beach vehicle according to claim 1, characterized in that: The second frame (2) comprises a plurality of second cross bars (21), a plurality of second vertical bars (22) and a plurality of second diagonal bars (23); one end of the plurality of first diagonal bars (13) is provided with a quick-release socket (131); each of the second vertical bars (22) and the second diagonal bar (23) is plugged into the surface of the quick-release socket (131); each end of the first diagonal bar (13), the second vertical bar (22) and the second diagonal bar (23) is provided with a limiting through hole (24) for mounting a bolt; adjacent second vertical bars (22) are connected via each second cross bar (21).

3. The rear-wheel drive beach vehicle according to claim 2, characterized in that: The second shock absorbing mechanism (4) comprises a shock absorbing support frame (41), a frame support block (42), a shock absorbing support block (31) and a buffer structure (33); the cross section of the shock absorbing support frame (41) is U-shaped; a plurality of frame support blocks (42) are provided on the surface of the first vertical rod (12); the end of the shock absorbing support frame (41) is rotatably connected to the inside of the frame support block; a plurality of shock absorbing support blocks (31) are provided on the surface of the shock absorbing support frame (41) and the surface of the first vertical rod (12); one end of the buffer structure (33) is rotatably connected to the shock absorbing support block (31) on the surface of the first vertical rod (12); and the other end is rotatably connected to the shock absorbing support block (31) on the surface of the shock absorbing support frame (41).

4. The rear-wheel drive beach vehicle according to claim 3, characterized in that: The buffer structure (33) comprises a damper body (331), a metal spring (333) and a damper slide rod (332); the damper slide rod (332) is slidably connected inside the damper body (331); a metal spring (333) is provided between the damper body (331) and the damper slide rod (332); the deformation of the metal spring (333) changes as the damper slide rod (332) slides; the ends of the damper body (331) and the damper slide rod (332) are both provided with circular bosses (334); the circular bosses (334) are rotatably connected inside the shock-absorbing support block (31).

5. The rear-wheel drive beach vehicle according to claim 4, characterized in that: The driving mechanism (7) comprises an engine (73), a driving support frame (72), and a buffer support block (71); a plurality of buffer support blocks (71) are further provided on the surface of the shock-absorbing support frame (41); an end of the driving support frame (72) is rotatably connected to the inside of the buffer support block (71); the engine (73) is arranged inside the driving support frame (72); and the engine (73) is connected to the sprocket on the driving shaft (53) through a sprocket on its output shaft that is matched with a corresponding chain for transmission.

6. The rear-wheel drive beach vehicle according to claim 5, characterized in that: The steering mechanism (6) comprises a steering wheel support plate (60), a steering support column (61), a tie rod support column (62), a metal screw (63), a first tie rod (64), a driving screw (65), a first U-shaped block (66), a second U-shaped block (67), a steering wheel support column (68) and a steering wheel (69); the interior of the steering support column (61) is slidably connected to the tie rod support column (62) and the metal screw (63); both ends of the metal screw (63) are fixedly connected to the tie rod support column (62); each tie rod support column (62) is provided with a first tie rod (64) inside; each first tie rod (64) is drivingly connected to the wheel hub support block (34). A driving screw (65) is provided on the outside of the steering support column (61), one end of the driving screw (65) is transmission-connected to the metal screw (63), and the rotation of the driving screw (65) causes the metal screw (63) to move left and right. A first U-shaped block (66) is provided on the other end of the driving screw (65), and the first U-shaped block (66) is connected to a second U-shaped block (67) via a cross-bit transmission. One end of the second U-shaped block (67) is connected to a steering wheel support column (68), and the end of the steering wheel support column (68) is connected to a steering wheel (69). The steering wheel support column (68) is connected to the first vehicle frame (1) via a steering wheel support plate (60).

7. The rear-wheel drive beach vehicle according to any one of claims 1 to 6, characterized in that: The surface of the first frame (1) is also provided with a rearview mirror (16) and a first lighting lamp (17), and the surface of the second frame (2) is also provided with a horn (25) and a second lighting lamp (26).

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