Traction connecting piece of trailer

Abstract

The utility model relates to the field of traction equipment, and discloses a trailer traction connecting piece which comprises a fixing plate, the middle of the rear side wall of the fixing plate is fixedly connected with the front end of a connector, a connecting hole is formed in the top of the rear end of the connector, and connecting plates are arranged at the top and the bottom of the rear end of the connector. Connecting rods are fixedly connected between the opposite side walls of the two connecting plates, the connecting rods are inserted into the connecting holes, the connecting rods are rotationally connected with the connecting holes, the rear ends of the connecting plates are fixedly connected with the front ends of two guide plates, and the two guide plates are arranged in a bilateral symmetry mode. Through the design of the two guide plates, the towing rack can be easily inserted between the two circular plates under the condition that manual accurate alignment is not needed, and the connecting process is simplified.

Description

Technical Field

[0001] This utility model relates to the field of traction equipment, specifically a trailer traction connector. Background Technology

[0002] In the field of trailer transportation, the towing connector is a key component to ensure a stable connection between the tractor and the trailer. The utility model discloses a trailer towing connector (authorization announcement number CN221250442U). It has a positioning protrusion on the first socket, and the positioning protrusion can be inserted into the second socket. Therefore, when aligning the first and second sockets, the user can directly put the second socket on the positioning protrusion, and then connect the first and second sockets through the axle pin. However, during docking, it is not possible to quickly guide the alignment of the first and second sockets, resulting in low docking efficiency and the need for frequent adjustments. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, this utility model provides a trailer traction connector.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A trailer traction connector includes a fixed plate, the middle of the rear side wall of the fixed plate is fixedly connected to the front end of the connector, a connecting hole is opened at the top of the rear end of the connector, and connecting plates are provided at the top and bottom of the rear end of the connector. A connecting rod is fixedly connected between the opposite side walls of the two connecting plates, the connecting rod is inserted into the connecting hole, and the connecting rod is rotatably connected to the connecting hole. The front ends of two guide plates are fixedly connected to the rear end of the connecting plate. The two guide plates are symmetrically arranged on the left and right. Circular plates are fixedly connected to the upper and lower ends of the two guide plates respectively. Insertion hole 1 is opened in the center of each of the two circular plates. The opposite side walls of the two guide plates are inclined outwards towards the rear end, and the two guide plates are flared. Insertion hole 2 is opened at the top of the front end of the trailer frame. The front end of the trailer frame is inserted between the upper and lower circular plates and the left and right guide plates. Insertion hole 2 is compatible with insertion hole 1. A pin is inserted from top to bottom into insertion hole 1 and insertion hole 2. The bottom end of the pin passes through the bottom of the lower circular plate. A pull ring is fixedly connected to the top end of the pin. A limiting hole is opened at the lower middle position of the outer wall of the pin, and a cotter pin is inserted into the limiting hole.

[0006] Mounting holes are provided at all four corners of the front side wall of the fixing plate.

[0007] The beneficial effects of this utility model are:

[0008] This invention, through the design of two guide plates, allows the trailer to be easily inserted between two circular plates without the need for precise manual alignment, simplifying the connection process and enabling rapid guidance, positioning, and connection. Attached Figure Description

[0009] Figure 1This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 yes Figure 1 Schematic diagram of the structure from an upward perspective;

[0011] Figure 3 yes Figure 1 Rear view;

[0012] Figure 4 yes Figure 3 Cross-sectional view at point AA;

[0013] Figure 5 This is an exploded view of part of the structure of this utility model.

[0014] The reference numerals in all the attached drawings are as follows: 1. Fixing plate; 2. Connector; 3. Connecting hole; 4. Round plate; 5. Insertion hole one; 6. Guide plate; 7. Connecting plate; 8. Connecting rod; 9. Trailer; 10. Insertion hole two; 11. Pin; 12. Pull ring; 13. Limiting hole; 14. Cotter pin; 15. Mounting hole. Detailed Implementation

[0015] like Figure 1-5 As shown: A trailer traction connector includes a fixing plate 1. The middle of the rear side wall of the fixing plate 1 is fixedly connected to the front end of the connector 2. A connecting hole 3 is opened at the top of the rear end of the connector 2. Both the top and bottom of the rear end of the connector 2 have connecting plates 7. A connecting rod 8 is fixedly connected between the opposite side walls of the two connecting plates 7. The connecting rod 8 is inserted into the connecting hole 3 and is rotatably connected to the connecting hole 3. The front ends of two guide plates 6 are fixedly connected to the rear end of the connecting plate 7. The two guide plates 6 are symmetrically arranged left and right. Circular plates 4 are fixedly connected to the upper and lower ends of the two guide plates 6 respectively. A central insertion hole 5 is provided. The opposite sidewalls of the two guide plates 6 are inclined outwards towards the rear end. The two guide plates 6 are flared. A second insertion hole 10 is provided at the top front end of the tow bracket 9. The front end of the tow bracket 9 is inserted between the upper and lower circular plates 4 and the left and right guide plates 6. The second insertion hole 10 is compatible with the first insertion hole 5. The pin 11 is inserted into the first insertion hole 5 and the second insertion hole 10 from top to bottom. The bottom end of the pin 11 passes through the bottom of the lower circular plate 4. The top end of the pin 11 is fixedly connected to the pull ring 12. A limiting hole 13 is provided at the lower middle position of the outer wall of the pin 11. A cotter pin 14 is inserted into the limiting hole 13.

[0016] Mounting holes 15 are provided at all four corners of the front side wall of the fixing plate 1.

[0017] The cotter pin 14 is an existing technology device, such as a steel bar, which has a certain degree of bending and functions to fix the pin 11 and prevent the pin 11 from coming out of the insertion hole 5.

[0018] First, the fixing plate 1 is fixedly installed at the rear of the tractor through the mounting holes 15 at the four corners of its front side wall.

[0019] The trailer's trailer frame 9 is ready, with a socket 10 at its front top. The front end of the trailer frame 9 is guided and inserted into the rear end of the connector 2.

[0020] Because the opposite sidewalls of the two guide plates 6 are inclined outwards at the rear end, forming an flared shape, the trailer 9 can easily enter between the two circular plates 4 under the guidance of the guide plates 6.

[0021] The trailer 9 continues to move forward until the second socket 10 aligns with the first socket 5 on the top of the two circular plates 4.

[0022] The pin 11 is inserted from top to bottom into the first insertion hole 5 and the second insertion hole 10, passing through the tow bracket 9 and the circular plate 4. The bottom end of the pin 11 passes through the bottom of the circular plate 4 below, and the top end is fixedly connected to the pull ring 12 for easy subsequent operation.

[0023] A limiting hole 13 is made at the lower middle part of the outer wall of the pin 11, and a cotter pin 14 is inserted into the limiting hole 13 to prevent the pin 11 from accidentally falling off.

Claims

1. A trailer traction connector, characterized in that, The device includes a fixing plate (1), the middle of the rear side wall of the fixing plate (1) is fixedly connected to the front end of the connector (2), the top of the rear end of the connector (2) has a connecting hole (3), the top and bottom of the rear end of the connector (2) both have connecting plates (7), the opposite side walls of the two connecting plates (7) are fixedly connected to a connecting rod (8), the connecting rod (8) is inserted into the connecting hole (3), the connecting rod (8) is rotatably connected to the connecting hole (3), the rear end of the connecting plate (7) is fixedly connected to the front end of two guide plates (6), the two guide plates (6) are symmetrically arranged left and right, the upper and lower ends of the two guide plates (6) are respectively fixedly connected to circular plates (4), and the center of each of the two circular plates (4) has an insertion hole (1). 5) The opposite sidewalls of the two guide plates (6) are inclined to the rear side, and the two guide plates (6) are flared. The front end of the tow bracket (9) is opened with the second insertion hole (10). The front end of the tow bracket (9) is inserted between the upper and lower circular plates (4) and the left and right guide plates (6). The second insertion hole (10) is compatible with the first insertion hole (5). The pin (11) is inserted into the first insertion hole (5) and the second insertion hole (10) from top to bottom. The bottom end of the pin (11) passes through the bottom of the lower circular plate (4). The top end of the pin (11) is fixedly connected to the pull ring (12). The lower part of the middle of the outer wall of the pin (11) is opened with the limiting hole (13). The cotter pin (14) is inserted into the limiting hole (13).

2. A trailer traction connector according to claim 1, characterized in that, Mounting holes (15) are provided at the four corners of the front side wall of the fixing plate (1).

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