An automatically triggered, non-adjustable height traction device

Abstract

This utility model discloses an automatically triggered, non-adjustable height traction device, relating to the field of traction connector technology. The utility model includes a traction box, inside which a reset block is installed. A spring is fixedly connected to one side of the reset block, a locking tongue is fixedly connected to the surface of the reset block, and a pushing block is fixedly connected to one side of the locking tongue. A pushing plate contacts the surface of the pushing block. This utility model achieves an automatic locking function through the linkage design of the locking tongue and the pushing block. When the traction ring inserts into the traction groove and strikes the locking tongue, the locking tongue changes from an inclined state to a vertical state, causing the pushing block to move downwards. This causes the pushing plate to lose support and descend, and the traction pin moves down along the fixed through groove under the action of gravity and inserts into the traction ring. This entire movement process is completed automatically by the mechanical structure without manual intervention, effectively solving the problem of traditional traction devices requiring manual alignment of the locking pin, significantly improving coupling efficiency, and is particularly suitable for frequent loading and unloading operations.

Description

Technical Field

[0001] This utility model belongs to the field of traction connector technology, and in particular relates to an automatically triggered traction device with non-adjustable height. Background Technology

[0002] The vehicle towing device is a key component used to connect the towing vehicle and the towed equipment. Its core functions include: transmitting the pulling force of the towing vehicle to the towed equipment to achieve synchronous movement. During operation, it needs to frequently engage and disengage, requiring simple and reliable operation, preventing accidental disengagement due to vibration or impact during travel, and ensuring the safety of personnel and equipment.

[0003] Existing vehicle towing devices still have some problems during use, such as: relying on human intervention throughout the process, being unable to achieve automatic locking after the towing ring impacts, requiring manual alignment and insertion of the locking pin, resulting in low operational efficiency, and the mechanical locking pin being prone to loosening in a vibrating environment, posing a risk of disengagement.

[0004] To address these issues, we provide an automatically triggered, non-adjustable height traction device. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic trigger height-unadjustable traction device. Through the cooperation of the locking tongue and the push block, it solves the problem in the existing vehicle traction devices that cannot achieve automatic locking after the traction ring impacts, requiring manual alignment and insertion of the locking pin, resulting in low operating efficiency.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model is an automatically triggered, non-adjustable height traction device, including a traction box. A reset block is provided inside the traction box. A spring is fixedly connected to one side of the reset block. A locking tongue is fixedly connected to the surface of the reset block. A pushing block is fixedly connected to one side of the locking tongue. A pushing plate is in contact with the surface of the pushing block. A traction pin is fixedly connected to one side of the pushing plate. A handle is provided on the front side of the traction box. A fixing ring is fixedly connected to one end of the traction box through the handle. A traction ring is provided inside the traction box.

[0008] The present invention is further configured such that a vehicle fixing plate is provided on one side of the traction box, and both the traction box and the vehicle fixing plate are provided with fixing through holes, and fixing bolts are inserted into the fixing through holes, and fixing nuts are threaded onto the surface of the fixing bolts.

[0009] The present invention is further configured such that a traction groove adapted to the traction ring is provided on one side of the traction box, and the bottom of the locking tongue extends into the traction groove.

[0010] The present invention is further provided that the traction box has a fixing groove adapted to the traction pin, and the fixing groove is designed vertically.

[0011] The present invention is further configured such that the contact positions of the push block and the push plate are both designed to be inclined, and the top of the lock tongue is provided with a locking through hole adapted to the fixing ring.

[0012] The present invention is further configured such that the surface of the handle is covered with an anti-slip sleeve, and a rotating through hole is provided on one side of the traction box, with the handle located inside the rotating through hole.

[0013] The present invention has the following beneficial effects.

[0014] 1. This utility model achieves automatic locking through the linkage design of the locking tongue and the push block. When the traction ring is inserted into the traction groove and strikes the locking tongue, the locking tongue changes from an inclined state to a vertical state, causing the push block to move down, causing the push plate to lose support and descend. Under the action of gravity, the traction pin moves down along the fixed through groove and inserts into the traction ring. This movement process is completed automatically by the mechanical structure without manual intervention, effectively solving the problem of manually aligning the locking pin in traditional traction devices, significantly improving the coupling efficiency, and is particularly suitable for operation scenarios with frequent loading and unloading.

[0015] 2. This utility model achieves double locking through the cooperation of the fixed ring and the locking through hole. When locking, rotating the handle causes the fixed ring to engage with the locking through hole of the locking tongue, forming a mechanical interlock. When unlocking, rotating the handle in the opposite direction releases the locking tongue. With the help of the spring-driven reset block, the traction pin can be quickly reset and disengaged from the traction ring. This design not only ensures the anti-vibration reliability in the locked state, but also realizes one-button quick unlocking, effectively avoiding the risk of accidental disengagement caused by vibration in traditional devices.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Fig. 1 This is a perspective view of an automatically triggered, non-adjustable height traction device.

[0019] Fig. 2 This is a cross-sectional view of the traction box in an automatically triggered, non-adjustable height traction device.

[0020] Fig. 3 This is a diagram showing the installation status of the traction ring in an automatically triggered, non-adjustable height traction device.

[0021] In the attached diagram: 1. Towing box; 2. Reset block; 3. Spring; 4. Locking tongue; 5. Push block; 6. Push plate; 7. Towing pin; 8. Handle; 9. Fixing ring; 10. Towing ring; 11. Vehicle fixing plate; 12. Fixing bolt; 13. Fixing nut; 14. Towing groove; 15. Fixing through groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1

[0024] Please see Figs. 1-3 This utility model is an automatic trigger height-unadjustable traction device, including a traction box 1, a reset block 2 inside the traction box 1, a spring 3 fixedly connected to one side of the reset block 2, a locking tongue 4 fixedly connected to the surface of the reset block 2, a push block 5 fixedly connected to one side of the locking tongue 4, a push plate 6 in contact with the surface of the push block 5, a traction pin 7 fixedly connected to one side of the push plate 6, a handle 8 on the front side of the traction box 1, a fixing ring 9 fixedly connected to one end of the handle 8 extending to the traction box 1, and a traction ring 10 inside the traction box 1.

[0025] Specifically: By setting the reset block 2 and spring 3, after the locking limit is lost, the lock tongue 4 is driven to reset inside the traction box 1. By setting the push block 5, when the lock tongue 4 resets upward, it drives the push plate 6 to reset upward. By setting the push plate 6, when the push plate 6 resets upward, it drives the traction pin 7 to reset vertically upward along the traction groove 14, so that the traction pin 7 disengages from the traction ring 10. By setting the handle 8, it is used to rotate the fixing ring 9. By setting the fixing ring 9, when it is necessary to lock the lock tongue 4, the fixing ring 9 is inserted into the locking through hole to limit the lock tongue 4 and prevent the lock tongue 4 from resetting upward.

[0026] Example 2

[0027] Please see Figs. 1-3Based on embodiment 1, a vehicle fixing plate 11 is provided on one side of the traction box 1. Both the traction box 1 and the vehicle fixing plate 11 have fixing through holes. Fixing bolts 12 are inserted into the fixing through holes. Fixing nuts 13 are threaded onto the surface of the fixing bolts 12. A traction groove 14 adapted to the traction ring 10 is provided on one side of the traction box 1. The bottom of the locking tongue 4 extends into the traction groove 14. A fixing through groove 15 adapted to the traction pin 7 is provided inside the traction box 1. The fixing through groove 15 is designed vertically and is connected to the traction groove 14. The contact positions of the push block 5 and the push plate 6 are both designed at an angle. A locking through hole adapted to the fixing ring 9 is provided at the top of the locking tongue 4. An anti-slip sleeve is provided on the surface of the handle 8. A rotating through hole is provided on one side of the traction box 1. The handle 8 is located inside the rotating through hole.

[0028] Specifically: The towing box 1 is fixed to the external vehicle mounting plate 11 by setting the fixing bolt 12 and fixing nut 13. The towing ring 10 can be inserted into the towing box 1 by setting the towing groove 14. The towing ring 10 is fixed by the towing pin 7. The towing pin 7 is vertically limited by the fixing through groove 15, so that the towing pin 7 can only move up and down in the fixing through groove 15. The inclined push block 5 and push plate 6 facilitate the push block 5 to push the push plate 6 to move. The locking through hole allows the towing ring 10 to be inserted into the locking through hole when locking is required, locking and fixing the lock tongue 4 and preventing the lock tongue 4 from resetting. The anti-slip sleeve prevents the hand from slipping when turning the handle 8.

[0029] The working principle of this utility model is as follows: When the traction ring 10 is not installed, the locking tongue 4 is in an inclined state in the traction groove 14. When the traction ring 10 is inserted into the traction groove 14 and impacts the locking tongue 4, the locking tongue 4 gradually moves to a vertical state. During the movement, it drives the push block 5 to move downward. After the push plate 6 loses the limiting effect of the push block 5, it moves downward. At this time, the traction pin 7 fixed on one side of the push plate 6 moves downward along the fixed through groove 15 under the action of gravity. At this time, the traction pin 7 is inserted into the traction ring 10, completing the fixing of the traction ring 10. Then, the handle 8 is rotated, and the handle 8 drives the fixed ring 9 to rotate, rotating the fixed ring 9 into the locking through hole at the top of the locking tongue 4, locking the locking tongue 4.

[0030] When unlocking is required, turn the handle 8 to rotate the fixed ring 9, causing it to disengage from the locking through hole of the latch 4. The latch 4 resets under the elastic force of the spring 3, and at the same time, it drives the push block 5 to reset upward. The push block 5 drives the push plate 6 to reset upward. The push plate 6 drives the traction pin 7 to move upward along the fixed through groove 15, causing the traction pin 7 to disengage from the traction ring 10, thus achieving quick unlocking. The traction ring 10 can be freely removed, and the device returns to the ready-to-trigger state.

[0031] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatically triggered, non-adjustable height traction device, comprising a traction box (1), characterized in that: The traction box (1) is provided with a reset block (2) inside. A spring (3) is fixedly connected to one side of the reset block (2). A locking tongue (4) is fixedly connected to the surface of the reset block (2). A push block (5) is fixedly connected to one side of the locking tongue (4). A push plate (6) is in contact with the surface of the push block (5). A traction pin (7) is fixedly connected to one side of the push plate (6). A handle (8) is provided on the front side of the traction box (1). A fixing ring (9) is fixedly connected to one end of the handle (8) extending to the traction box (1). A traction ring (10) is provided inside the traction box (1).

2. The automatically triggered, non-adjustable height traction device according to claim 1, characterized in that: A vehicle fixing plate (11) is provided on one side of the traction box (1). Both the traction box (1) and the vehicle fixing plate (11) have fixing through holes. Fixing bolts (12) are inserted into the fixing through holes. Fixing nuts (13) are threaded onto the surface of the fixing bolts (12).

3. The automatically triggered, non-adjustable height traction device according to claim 1, characterized in that: The traction box (1) has a traction groove (14) on one side that is compatible with the traction ring (10), and the bottom of the locking tongue (4) extends into the traction groove (14).

4. The automatically triggered, non-adjustable height traction device according to claim 1, characterized in that: The traction box (1) has a fixed through groove (15) inside that is adapted to the traction pin (7), and the fixed through groove (15) is designed vertically.

5. The automatically triggered, non-adjustable height traction device according to claim 1, characterized in that: The contact positions of the push block (5) and the push plate (6) are both designed to be inclined, and the top of the locking tongue (4) is provided with a locking through hole that is compatible with the fixing ring (9).

6. The automatically triggered, non-adjustable height traction device according to claim 1, characterized in that: The handle (8) is covered with an anti-slip sleeve, and a rotating through hole is provided on one side of the traction box (1). The handle (8) is located inside the rotating through hole.

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