Rear cradle trailer structure of dune buggy

Abstract

The utility model particularly discloses a rear cradle trailer structure of a dune buggy, which comprises a top rod, a rear connecting rod, a bottom support rod, a middle support rod and a rear wheel bearing seat, the middle support rod is connected with a damping spring seat, the rear connecting rod and a fixed plate welded with the bottom support rod, and the damping spring seat is connected with a movable frame. A limiting plate is welded to the upper end of the welding position of the movable frame and the rear wheel bearing seat, an angle steel plate and the limiting plate are welded to the outer side of the rear wheel bearing seat, a trailer connecting plate is placed on the outer side of the rear wheel bearing seat, a locking bolt is arranged on the limiting plate, and the trailer connecting plate and the limiting plate are locked and connected through the locking bolt. A reinforcing plate is further placed on the rear wheel bearing seat and located below the angle steel plate welded to the lower end, the trailer connecting plate is provided with fixing bolts, the trailer connecting plate, the angle steel plate and the reinforcing plate are locked and connected through the fixing bolts, and the outer side of the trailer connecting plate is connected with a trailer connecting ball column. The damping device has the advantages of being simple in structure, good in damping effect during driving, more comfortable and firmer in connection with a trailer.

Description

Technical Field

[0001] The utility model relates to the technical field of beach vehicles, in particular to a beach vehicle rear cradle trailer structure. Background Art

[0002] ATVs are vehicles that can travel on any terrain, and can move freely on terrain where ordinary vehicles are difficult to maneuver. Because their structure is very similar to that of motorcycles, and many of their parts are common to motorcycles, some people call them "four-wheeled motorcycles." This type of vehicle has multiple uses and is not restricted by road conditions.

[0003] As the audience of beach buggies increases, they are becoming more and more popular among young people. In order to improve the practicality of beach buggies, a rear rocker trailer is installed at the rear of the beach buggy, which is connected to the rear end of the beach buggy and is used to carry some items during driving. However, the current rear rocker has poor stability and shakes significantly. For example, application number CN201720257225.4 discloses a rear rocker for a beach buggy, and the entire frame structure adopts a rigid connection. When encountering an uneven road, the beach buggy will experience large shaking and vibration caused by the bumps, and the driver often feels bumpy and uncomfortable. At the same time, the rear rocker is connected to a trailer, such as application number CN201410656929.X discloses a trailer assembly for a beach buggy, which is only connected by a few protrusions and grooves. During the continuous dragging and pulling process, these protrusions and grooves are easily worn, resulting in the trailer being unfastened. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a beach vehicle rear cradle trailer structure, which has a simple structure, good shock absorption effect and more comfort during driving, and a more firm connection with the trailer.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A beach car rear cradle trailer structure comprises a top rod, a rear connecting rod, a bottom support rod, an intermediate support rod and a rear wheel bearing seat, wherein the top rod is respectively welded and fixed to the rear connecting rod and the bottom support rod, the rear connecting rod is also welded and fixed to the bottom support rod, the intermediate support rod is welded to the top rod, a shock absorbing spring seat is also connected to the intermediate support rod, a fixing plate is welded to the rear connecting rod and the bottom support rod, the shock absorbing spring seat is rotatably connected to a movable frame, one end of the movable frame is hinged on the fixing plate, the other end of the movable frame is welded and fixed to the rear wheel bearing seat, and the movable frame is connected to the rear wheel bearing seat. A limit plate is also welded to the upper end of the welding point, and angle steel plates are also welded to the upper and lower ends of the outer side of the rear wheel bearing seat. A trailer connecting plate is also placed on the limit plate and the angle steel plate located at the upper end of the outer side of the rear wheel bearing seat. A locking bolt is also provided on the limit plate, and the trailer connecting plate and the limit plate are locked and connected by the locking bolt. A reinforcing plate is also placed below the angle steel plate welded at the lower end of the rear wheel bearing seat. Fixing bolts are also provided on the left and right sides of the trailer connecting plate, and the trailer connecting plate, the angle steel plate and the reinforcing plate are locked and connected by the fixing bolts. A trailer connecting ball column is also connected to the outer end of the trailer connecting plate.

[0007] A further technical solution is that a ball column connecting seat is placed below the outer end of the trailer connecting plate, and more than two connecting bolts are placed at the outer end of the trailer connecting plate, and the trailer connecting plate and the ball column connecting seat are locked by the connecting bolts, and the trailer connecting ball column is locked and fixed to the outer end of the ball column connecting seat. In this embodiment, four connecting bolts are used to lock and fix the ball column connecting seat, which is more firm, and the trailer connection ball column is fixed to the outer end of the ball column connecting seat, so that the trailer can be sleeved on the trailer connection ball column to achieve towing.

[0008] A further technical solution is that the angle steel plate at the upper end of the rear wheel bearing seat is folded downward at both ends, and the angle steel plate at the lower end of the rear wheel bearing seat is folded upward at both ends. The folded structure increases the firmness of the steel plate and protects the fixing bolts from bumps.

[0009] A further technical solution is that the left and right sides of the reinforcing plate are folded downward, and the folded structure increases the firmness of the steel plate and protects the fixing bolts from bumps.

[0010] A further technical solution is that the movable frame is in an "H"-shaped structure, which can realize welding and fixation of the front and rear ends, and hinge connection with the shock-absorbing spring seat in the middle.

[0011] The beneficial effects of the utility model are as follows: the utility model provides a beach car rear rocker trailer structure, wherein the movable frame is hinged with the rear connecting rod and the bottom supporting rod, and most of the vibration force is transmitted to the shock-absorbing spring seat hinged with the middle of the movable frame and offset by the shock-absorbing spring seat, making the driver more comfortable when driving; at the same time, the trailer connecting plate is fixed on all sides by connecting bolts and locking bolts, and the fixing bolts increase the firmness by the upper and lower end angle steel plates, so that the connection between the trailer connecting plate and the rear wheel bearing seat is more firm and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 This is a vertical view of a beach vehicle rear cradle trailer structure of the utility model;

[0014] Figure 2 It is a top view of a beach vehicle rear cradle trailer structure of the utility model;

[0015] Figure 3 This is a front view of a beach vehicle rear cradle trailer structure of the utility model;

[0016] Figure 4 The utility model is a schematic diagram of fixing bolts in a beach vehicle rear cradle trailer structure to lock a trailer connecting plate, an angle steel plate and a reinforcing plate.

[0017] Figure 1-4 Middle: 1- shock absorber spring seat, 2- top rod, 3- middle support rod, 4- rear connecting rod, 5- bottom support rod, 6- ball column connecting seat, 7- fixed plate, 8- movable frame, 9- rear wheel bearing seat, 10- limit plate, 11- reinforcement plate, 12- trailer connecting plate, 13- connecting bolt, 14- fixing bolt, 15- trailer connecting ball column, 16- locking bolt, 17- angle steel plate. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0019] See also Figures 1 to 4As shown, a beach car rear cradle trailer structure includes a top rod 2, a rear connecting rod 4, a bottom support rod 5, an intermediate support rod 3 and a rear wheel bearing seat 9. The top rod 2 is welded and fixed to the rear connecting rod 4 and the bottom support rod 5 respectively, the rear connecting rod 4 is also welded and fixed to the bottom support rod 5, the intermediate support rod 3 is welded to the top rod 2, and a shock-absorbing spring seat 1 is also connected to the intermediate support rod 3. A fixing plate 7 is welded to the rear connecting rod 4 and the bottom support rod 5. The shock-absorbing spring seat 1 is rotatably connected to a movable frame 8, one end of the movable frame 8 is hinged on the fixing plate 7, and the other end of the movable frame 8 is welded and fixed to the rear wheel bearing seat 9. The upper end of the welding place between the movable frame 8 and the rear wheel bearing seat 9 is also welded A limiting plate 10 and angle steel plates 17 are welded at the upper and lower ends of the outer side of the rear wheel bearing seat 9. A trailer connecting plate 12 is placed on the limiting plate 10 and the angle steel plate 17 located at the upper end of the outer side of the rear wheel bearing seat 9. A locking bolt 16 is also provided on the limiting plate 10, and the trailer connecting plate 12 and the limiting plate 10 are locked and connected by the locking bolt 16. A reinforcing plate 11 is placed below the angle steel plate 17 welded at the lower end of the rear wheel bearing seat 9. Fixing bolts 14 are also provided on the left and right sides of the trailer connecting plate 12, and the trailer connecting plate 12, the angle steel plate 17 and the reinforcing plate 11 are locked and connected by the fixing bolts 14. A trailer connecting ball column 15 is also connected to the outer end of the trailer connecting plate 12.

[0020] A ball column connection seat 6 is also placed below the outer end of the trailer connection plate 12. Two or more connection bolts 13 are also placed on the outer end of the trailer connection plate 12, and the trailer connection plate 12 and the ball column connection seat 6 are locked by the connection bolts 13. The trailer connection ball column 15 is locked and fixedly connected to the outer end of the ball column connection seat 6. In this embodiment, four connection bolts 13 are used to lock and fix the ball column connection seat 6, which is more secure. The trailer connection ball column 15 is fixed to the outer end of the ball column connection seat 6, so that the trailer can be sleeved on the trailer connection ball column 15 to achieve towing. The angle steel plate 17 at the upper end of the rear wheel bearing seat 9 is folded downward at both ends, and the angle steel plate 17 at the lower end of the rear wheel bearing seat 9 is folded upward at both ends. The folding structure increases the firmness of the steel plate and can protect the fixing bolts 14 from bumps. The left and right sides of the reinforcing plate 11 are folded downward, and the folding structure increases the firmness of the steel plate and can protect the fixing bolts 14 from bumps. The movable frame 8 is in an "H"-shaped structure, which can realize welding and fixing of the front and rear ends, and hinge connection with the shock-absorbing spring seat 1 in the middle.

[0021] In this embodiment, the rear wheel bearing seat 9 is connected to the rear wheel of the beach car at both ends, and the rear wheel bearing seat 9 bears the vibration generated by the rear wheel. A small part of the vibration is transmitted to the rear connecting rod 4 and the bottom support rod 5 through the movable frame 8. Because the movable frame 8 is hinged to the rear connecting rod 4 and the bottom support rod 5, most of the vibration force is transmitted to the shock-absorbing spring seat 1 hinged in the middle of the movable frame 8, and is offset by the shock-absorbing spring seat 1, making the driver more comfortable when driving.

[0022] When connected to the trailer, the inner end of the trailer connecting plate 12 is firmly fixed to the limit plate 10 by two locking bolts 16, and the front and rear outer ends of the trailer connecting plate 12 are firmly fixed to the front and rear angle steel plates 17 at the upper end of the rear wheel bearing seat 9 by two front and rear fixing bolts 14. In order to increase the strength of the fixing bolts 14, two angle steel plates 17 are welded to the lower end of the rear wheel bearing seat 9, and the fixing bolts 14 are used to penetrate the two angle steel plates 17 at the lower end of the rear wheel bearing seat 9, so that the fixing bolts 14 fix the trailer connecting plate 12 more firmly. At the same time, a reinforcing plate 11 is placed under the two angle steel plates 17 at the lower end of the rear wheel bearing seat 9, so that the two angle steel plates 17 at the lower end of the rear wheel bearing seat 9 are further strengthened.

[0023] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0024] The above embodiment is only an example of the present invention and is not intended to limit the implementation and scope of rights of the present invention. Any technical solution that is identical or equivalent to the content described in the claims of the present invention should be included in the protection scope of the present invention.

Claims

1. A beach vehicle rear cradle trailer structure, characterized in that: It includes a top rod, a rear connecting rod, a bottom support rod, an intermediate support rod and a rear wheel bearing seat, the top rod is respectively welded and fixed to the rear connecting rod and the bottom support rod, the rear connecting rod is also welded and fixed to the bottom support rod, the intermediate support rod is welded to the top rod, and a shock-absorbing spring seat is also connected to the intermediate support rod, a fixing plate is welded to the rear connecting rod and the bottom support rod, the shock-absorbing spring seat is rotatably connected to a movable frame, one end of the movable frame is hinged on the fixing plate, the other end of the movable frame is welded and fixed to the rear wheel bearing seat, and the upper end of the welding place between the movable frame and the rear wheel bearing seat A limit plate is also welded, and angle steel plates are welded on the upper and lower ends of the outer side of the rear wheel bearing seat. A trailer connecting plate is placed on the limit plate and the angle steel plate located at the upper end of the outer side of the rear wheel bearing seat. A locking bolt is also provided on the limit plate, and the trailer connecting plate and the limit plate are locked and connected by the locking bolt. A reinforcing plate is placed below the angle steel plate welded at the lower end of the rear wheel bearing seat. Fixing bolts are also provided on the left and right sides of the trailer connecting plate, and the trailer connecting plate, the angle steel plate and the reinforcing plate are locked and connected by the fixing bolts. A trailer connecting ball column is also connected to the outer end of the trailer connecting plate.

2. The beach vehicle rear cradle trailer structure according to claim 1, characterized in that: A ball column connecting seat is also placed below the outer end of the trailer connecting plate, and more than two connecting bolts are also placed at the outer end of the trailer connecting plate, and the trailer connecting plate and the ball column connecting seat are locked by the connecting bolts, and the trailer connecting ball column is locked and fixedly connected to the outer end of the ball column connecting seat.

3. The beach vehicle rear cradle trailer structure according to claim 1, characterized in that: The angle steel plate at the upper end of the rear wheel bearing seat is folded downward at both ends, and the angle steel plate at the lower end of the rear wheel bearing seat is folded upward at both ends.

4. The beach vehicle rear cradle trailer structure according to claim 1, characterized in that: The left and right sides of the reinforcement plate are folded downward.

5. The beach vehicle rear cradle trailer structure according to claim 1, characterized in that: The movable frame is in an "H"-shaped structure.

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