Rubber damping connecting device for trailer

Abstract

The utility model discloses a rubber shock absorption connecting device for a trailer, which relates to the technical field of trailer shock absorption and comprises a ball cup assembly, a traction rod is arranged on the ball cup assembly, one side of the traction rod is connected with a tractor seat in a sliding mode, a rubber shock absorption sleeve A is arranged in the tractor seat, and the rubber shock absorption sleeve A is connected with the traction rod in a sliding mode. One end of the traction rod is in threaded connection with a traction nut, one end of the traction rod is movably connected with an anti-rotation gasket, a rubber damping sleeve B is further arranged in the tractor base, one end of the rubber damping sleeve B movably abuts against one end of the anti-rotation gasket, and the other end of the rubber damping sleeve B movably abuts against a thrust plug. According to the tractor, the rubber damping sleeve A and the rubber damping sleeve B are arranged to be rubber elements, and the effects that according to the different tonnage requirements of the trailer, different hardness is matched, and appropriate damping response is provided are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of trailer shock absorption, in particular to a rubber shock absorption connecting device for a trailer. Background Art

[0002] The rubber shock-absorbing connection device is a connection device between the tractor and the towed vehicle in the towed RV and trailer industry. It is the connection hub between power and braking, and plays a vital role in the safety and comfort of the entire vehicle during driving.

[0003] In the simple trailer market in the market segment, due to cost control, high-end tractors are not very practical, and simple tractors are mostly rigidly connected, which greatly reduces the comfort. During driving, the tractor is extremely susceptible to impact and vibration from the trailer.

[0004] Based on this, a rubber shock-absorbing connection device for a trailer is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0005] The purpose of the utility model is to provide a rubber shock-absorbing connection device for a trailer to solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A rubber shock-absorbing connection device for a trailer includes a ball head seat assembly, a traction rod is provided on the ball head seat assembly, a traction device seat is slidably connected to one side of the traction rod, a rubber shock-absorbing sleeve A is provided inside the traction device seat, one end of the traction rod is threadedly connected to a traction nut, and the traction nut is arranged inside the traction device seat, one end of the traction rod is movably connected to an anti-rotation washer, a rubber shock-absorbing sleeve B is further provided inside the traction device seat, and one end of the rubber shock-absorbing sleeve B is movably abutted against one end of the anti-rotation washer, and the other end of the rubber shock-absorbing sleeve B is movably abutted against a thrust screw plug, and the thrust screw plug is threadedly connected to the end of the traction device seat away from the traction rod.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional solution: the drawbar and ball seat assembly is a forged or welded structure, and an anti-rotation washer is provided at one end of the drawbar.

[0010] In an optional solution, the tractor seat is a casting structure, and a thread that matches the thrust screw is provided at the rear end of the tractor seat.

[0011] In an optional solution, the rubber shock-absorbing sleeve A and the rubber shock-absorbing sleeve B are rubber elements.

[0012] In an optional solution: the traction nut is a cylindrical structure, and three slotted structures are designed at the tail of the traction nut.

[0013] In an optional solution, the anti-rotation washer is provided with a bend that matches the slot on the pulling nut.

[0014] In an optional solution, the rubber shock-absorbing sleeve B is higher than the tail of the tractor seat during installation.

[0015] In an optional solution: a mounting structure is provided on the outer surface of the tractor seat.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention provides an effect of providing a suitable damping response by matching different hardnesses according to different tonnage requirements of trailers by setting the rubber shock-absorbing sleeves A and B as rubber elements.

[0018] 2. The utility model achieves the function of providing shock reduction and shock absorption for the trailer through the elastic deformation material of the rubber shock-absorbing sleeve A and the rubber shock-absorbing sleeve B.

[0019] 3. The utility model provides a certain pre-tightening force when installing the thrust screw plug by ensuring that the length of the rubber shock-absorbing sleeve B is higher than the traction device seat during installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is a structural cutaway front view of the present invention.

[0022] Figure 3 This is an exploded view of the structure of the present invention.

[0023] Including: 1. Ball head seat assembly; 2. Traction rod; 3. Traction device seat; 4. Rubber shock-absorbing sleeve A; 5. Traction nut; 6. Anti-rotation washer; 7. Rubber shock-absorbing sleeve B; 8. Thrust screw plug. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 3In an embodiment of the utility model, a rubber shock-absorbing connection device for a trailer includes a ball head seat assembly 1, a traction rod 2 is provided on the ball head seat assembly 1, a traction rod 2 is slidably connected to a tractor seat 3 on one side of the traction rod 2, a rubber shock-absorbing sleeve A4 is provided inside the tractor seat 3, one end of the traction rod 2 is threadedly connected to a traction nut 5, and the traction nut 5 is arranged inside the tractor seat 3, one end of the traction rod 2 is movably connected to an anti-rotation washer 6, a rubber shock-absorbing sleeve B7 is further provided inside the tractor seat 3, and one end of the rubber shock-absorbing sleeve B7 is movably abutted against one end of the anti-rotation washer 6, and the other end of the rubber shock-absorbing sleeve B7 is movably abutted against a thrust screw plug 8, and the thrust screw plug 8 is threadedly connected to the end of the tractor seat 3 away from the traction rod 2.

[0026] In one embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, the traction rod 2 and the ball head seat assembly 1 are forged or welded structures, and an anti-rotation washer 6 is provided at one end of the traction rod 2 to make the traction rod 2 sufficiently firm, and the milled structure enables the anti-rotation washer 6 to be installed.

[0027] In one embodiment, Figure 1 、 Figure 2 and Figure 3 As shown, the tractor seat 3 is a casting structure, and the rear end of the tractor seat 3 is provided with a thread that matches the thrust screw 8, so that the thrust screw 8 can be threadedly connected to the rear end of the tractor seat 3.

[0028] In one embodiment, Figure 2 and Figure 3 As shown, the rubber shock-absorbing sleeve A4 and the rubber shock-absorbing sleeve B7 are rubber elements, which are matched with different hardness according to the different tonnage requirements of the trailer to provide appropriate damping response.

[0029] In one embodiment, Figure 2 and Figure 3 As shown, the traction nut 5 is a cylindrical structure, and three slotted structures are designed at the tail of the traction nut 5. While achieving limited locking, it also serves as a force transmission structure between the traction rod 2 and the rubber shock-absorbing sleeves A4 and B7 during axial movement.

[0030] In one embodiment, Figure 2 and Figure 3 As shown, the anti-rotation washer 6 is provided with a bend that matches the slot on the traction nut 5. The bend of the anti-rotation washer 6 is embedded between the slot of the traction nut 5 and the milled flat surface of the traction rod 2. The purpose of preventing the traction nut 5 from rotating is achieved by preventing the threaded engagement of the traction rod 2 and the traction nut 5. At the same time, the anti-rotation washer 6 is prevented from axially dislodging by the limiting action of the rubber shock-absorbing sleeve B7.

[0031] In one embodiment, Figure 2 and Figure 3 As shown, the rubber shock-absorbing sleeve B7 is higher than the tail of the traction device seat 3 during installation. After the thrust screw 8 is tightened, the rubber shock-absorbing sleeve A4 and the rubber shock-absorbing sleeve B7 are pressed together to provide a certain pre-tightening force.

[0032] In one embodiment, Figure 1 and Figure 3 As shown, the outer surface of the tractor seat 3 is provided with a mounting structure, which can rigidly connect the tractor seat 3 to the trailer chassis.

[0033] The working principle of the present utility model is as follows: the above embodiment discloses a rubber shock-absorbing connection device for a trailer, wherein the tractor seat 3 is rigidly connected to the trailer chassis, and the traction rod 2 is connected to the tractor through the ball head seat assembly 1. The assembly composed of the traction rod 2 and the traction nut 5 applies axial impact force to the rubber shock-absorbing sleeve A4 and the rubber shock-absorbing sleeve B7, applies vertical bearing force, and applies horizontal steering force. The elastic deformation of the rubber shock-absorbing sleeve A4 and the rubber shock-absorbing sleeve B7 provides shock-absorbing and shock-absorbing functions. After long-term use and aging, they can be easily replaced. The rubber shock-absorbing sleeve A4 and the rubber shock-absorbing sleeve B7 are rubber elements. They can match different hardnesses according to the different tonnage requirements of the trailer to provide appropriate damping response. The traction nut 5 is a cylindrical structure. While achieving limit locking, it also acts as a axial movement. The traction rod 2 and the rubber shock-absorbing sleeve The force transmission structure is between A4 and the rubber shock-absorbing sleeve B7, and the bent anti-rotation washer 6 is embedded in the middle of the slot of the traction nut 5 and the milled flat surface of the traction rod 2, thereby preventing the threaded engagement of the traction rod 2 and the traction nut 5 to achieve the purpose of preventing the traction nut 5 from rotating. At the same time, the axial escape of the anti-rotation washer 6 is prevented by the limiting of the rubber shock-absorbing sleeve B7. Finally, the thrust screw 8 presses the rubber shock-absorbing sleeve A4 and the rubber shock-absorbing sleeve B7 to provide a certain pre-tightening force. When reversing, the tractor applies thrust to the thrust screw 8 through the traction rod 2, and the thrust is transmitted to the tractor seat 3 and the trailer chassis through the thrust screw 8 and the thread of the tractor seat 3.

[0034] The above description is merely a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A rubber shock-absorbing connection device for a trailer, comprising a ball seat assembly (1), characterized in that: The ball head seat assembly (1) is provided with a traction rod (2), one side of the traction rod (2) is slidably connected to a traction device seat (3), a rubber shock-absorbing sleeve A (4) is provided inside the traction device seat (3), one end of the traction rod (2) is threadedly connected to a traction nut (5), and the traction nut (5) is provided inside the traction device seat (3), one end of the traction rod (2) is movably connected to an anti-rotation washer (6), and a rubber shock-absorbing sleeve B (7) is further provided inside the traction device seat (3), and one end of the rubber shock-absorbing sleeve B (7) is movably abutted against one end of the anti-rotation washer (6), and the other end of the rubber shock-absorbing sleeve B (7) is movably abutted against a thrust screw plug (8), and the thrust screw plug (8) is threadedly connected to the end of the traction device seat (3) away from the traction rod (2).

2. A rubber shock-absorbing connection device for a trailer according to claim 1, characterized in that: The traction rod (2) and the ball seat assembly (1) are forged or welded structures, and an anti-rotation washer (6) is provided at one end of the traction rod (2).

3. The rubber shock-absorbing connection device for a trailer according to claim 1, characterized in that: The tractor seat (3) is a cast structure, and a thread that matches the thrust screw plug (8) is provided at the rear of the tractor seat (3).

4. The rubber shock-absorbing connection device for a trailer according to claim 1, characterized in that: The rubber shock-absorbing sleeve A (4) and the rubber shock-absorbing sleeve B (7) are rubber elements.

5. The rubber shock-absorbing connection device for a trailer according to claim 1, characterized in that: The traction nut (5) is a cylindrical structure, and three slotted structures are designed at the tail of the traction nut (5).

6. The rubber shock-absorbing connection device for a trailer according to claim 1, characterized in that: The anti-rotation washer (6) is provided with a bend that matches the slot on the traction nut (5).

7. The rubber shock-absorbing connection device for a trailer according to claim 1, characterized in that: The rubber shock-absorbing sleeve B (7) is higher than the tail of the tractor seat (3) when installed.

8. The rubber shock-absorbing connection device for a trailer according to claim 1, characterized in that: The outer surface of the traction device seat (3) is provided with a mounting structure.

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