Belt buckle tail clamp with multiple springs

By setting multiple torsion springs on the belt buckle tail clip shaft, the problem of easy breakage of single torsion springs is solved, achieving a more stable and durable belt buckle locking effect.

CN224125373UActive Publication Date: 2026-04-17DONGGUAN JINPIN HARDWARE PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-10
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing belt buckle end clip only has one torsion spring, which is prone to breakage after long-term use, causing the movable buckle to lose its elasticity and fail to effectively lock the belt end.

Method used

Multiple torsion springs are installed on the rotating shaft, including a main torsion spring and auxiliary torsion springs on both sides, forming a three-torsion spring structure. This ensures that even if one torsion spring fails, it can still provide sufficient elasticity to support the movable buckle, thereby improving structural stability and service life.

Benefits of technology

The multi-torsion spring structure improves the locking effect and service life of the belt buckle, ensuring that the movable buckle can tightly lock the belt head.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a belt buckle tail clamp with a plurality of springs, and belongs to the field of belt buckles. Comprising a tail clamp body, a rotating shaft, a movable buckle, a main torsion spring, a first auxiliary torsion spring and a second auxiliary torsion spring, the tail clamp body comprises a first limiting part and a second limiting part, a movable position is arranged between the first limiting part and the second limiting part, and the movable buckle is rotationally installed on the movable position through the main torsion spring; the first limiting part, the movable buckle and the second limiting part are each provided with a shaft hole, and the rotating shaft penetrates through the shaft holes and is connected with the first auxiliary torsion spring and the second auxiliary torsion spring. Compared with the prior art, the elastic force is provided for the movable buckle through the three torsional springs, the structural stability of a product can be improved, and the service life of the product can be prolonged; meanwhile, the three torsional springs can also greatly increase the elastic force, large torque can be provided for the movable buckle, and then the locking effect of the belt head end can be improved.
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Description

Technical Field

[0001] This utility model belongs to the field of belt buckles, and specifically relates to a belt buckle tail clip with multiple springs. Background Technology

[0002] Belt buckles typically consist of a buckle head and a tail clip. The tail clip usually includes a clip body and a movable buckle, which is rotatably connected to the clip body via a pivot with a torsion spring. When installing a belt, the clip body holds and secures the end of the belt. When tightening the belt, the movable buckle, under the action of the torsion spring, presses the belt towards the buckle head, securing the belt end and preventing it from slipping off the buckle. However, existing belt buckle tail clips usually have only a single torsion spring on their pivot. The force of a single torsion spring is limited, and after prolonged use, it is prone to breakage, causing the movable buckle to lose its elastic support and fail to lock the belt end securely. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to provide a belt buckle tail clip with multiple springs. Multiple torsion springs are arranged on the rotating shaft. Even after one torsion spring loses its effectiveness, it can still provide sufficient elasticity to the movable buckle, thereby improving both the structural stability and service life of the product.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] This utility model provides a belt buckle tail clip with multiple springs, including: a tail clip body, a rotating shaft, a movable buckle, a main torsion spring, a first auxiliary torsion spring, and a second auxiliary torsion spring. The tail clip body includes a first limiting part and a second limiting part, with a movable position provided between the first limiting part and the second limiting part. The movable buckle is rotatably mounted on the movable position via the main torsion spring. The first auxiliary torsion spring is mounted on the first limiting part, and the second auxiliary torsion spring is mounted on the second limiting part. The first limiting part, the movable buckle, and the second limiting part are all provided with corresponding shaft holes. The rotating shaft passes through the shaft holes of the first limiting part, the movable buckle, and the second limiting part in sequence, and the rotating shaft is connected to the first auxiliary torsion spring and the second auxiliary torsion spring.

[0006] Existing belt buckle clips typically only have one main torsion spring, which provides elastic support for the movable buckle. This application adds an auxiliary torsion spring on each side of the main torsion spring, providing elasticity to the movable buckle with three torsion springs. Even if one torsion spring loses its effectiveness, it can still provide sufficient elasticity to the movable buckle, which improves both the structural stability and service life of the product. At the same time, the three torsion springs can also significantly increase the elasticity, providing a larger torque to the movable buckle, thereby improving the locking effect at the belt end.

[0007] Furthermore, the inner side of the movable buckle is provided with a mounting position, and the shaft hole of the movable buckle penetrates through the side walls on both sides of the mounting position. The main torsion spring is disposed on the mounting position, with one end of the main torsion spring abutting against the inner wall of the mounting position and the other end abutting against the inner wall of the movable position. The main torsion spring can push the movable buckle away from the movable position, thereby allowing the movable buckle to be tightly locked with the belt's teeth, thus locking the head end of the belt.

[0008] Furthermore, the first limiting part has a first mounting cavity, the inner wall of the first mounting cavity is provided with a first slot, the rotating shaft has a fixing slot, one end of the first auxiliary torsion spring is engaged in the fixing slot, and the other end is engaged in the first slot; the second limiting part has a second mounting cavity, the inner wall of the second mounting cavity is provided with a second slot, one end of the second auxiliary torsion spring is engaged in the fixing slot, and the other end is engaged in the second slot.

[0009] The above structure allows one end of the first auxiliary torsion spring and the second auxiliary torsion spring to be fixed to the first limiting part and the second limiting part respectively, and the other end to be fixed to the rotating shaft. This provides elastic support for the rotation of the rotating shaft, and in turn, provides elastic support for the movable buckle through the rotating shaft, thereby improving the locking effect of the movable buckle.

[0010] Furthermore, the fixing groove extends axially through the rotating shaft; the first mounting cavity has a first opening communicating with the external space on the side opposite to the movable position, and one end of the first slot extends to the first opening; the second mounting cavity has a second opening communicating with the external space on the side opposite to the movable position, and one end of the second slot extends to the second opening.

[0011] The above structure allows the first auxiliary torsion spring to slide into the first slot through the first opening, and the second auxiliary torsion spring to slide into the second slot through the second opening. By sliding into the fixing slot from both ends of the rotating shaft, the installation of the first and second auxiliary torsion springs can be facilitated.

[0012] Furthermore, a snap fastener is rotatably mounted on the tail clip body, which can be used to fix the tail end of the belt to the tail clip body during use.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, this application adds an auxiliary torsion spring on each side of the main torsion spring, and uses three torsion springs to provide elastic force to the movable buckle. Even if one torsion spring loses its effectiveness, the other two torsion springs can still provide sufficient elastic force to the movable buckle, which can improve the structural stability of the product and extend its service life. At the same time, the three torsion springs can also significantly increase the elastic force, providing a larger torque to the movable buckle, thereby improving the locking effect of the belt head. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a belt buckle end clip.

[0015] Figure 2 This is an exploded view of a belt buckle clip.

[0016] Figure 3 This is a side view of the belt buckle clip.

[0017] Figure 4 yes Figure 3 Cross-sectional view at point AA.

[0018] Figure 5 This is a first-person view structural diagram of the tail clip body.

[0019] Figure 6 This is a structural diagram of the tail clip body from a second perspective.

[0020] Figure 7 This is an exploded view of a belt buckle.

[0021] In the diagram: 1. Tail clip body; 11. First limiting part; 12. Second limiting part; 13. Movable position; 14. Shaft hole; 15. First mounting cavity; 16. First slot; 17. Second mounting cavity; 18. Second slot; 19. First opening; 110. Second opening; 2. Rotating shaft; 21. Fixing groove; 3. Movable buckle; 31. Mounting position; 4. Main torsion spring; 5. First auxiliary torsion spring; 6. Second auxiliary torsion spring; 7. Press buckle; 8. Belt buckle. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] To achieve the above objectives, the technical solution of this utility model is as follows:

[0024] See Figure 1-7As shown, this embodiment provides a belt buckle tail clip with multiple springs, including: a tail clip body 1, a rotating shaft 2, a movable buckle 3, a main torsion spring 4, a first auxiliary torsion spring 5, and a second auxiliary torsion spring 6. The tail clip body 1 includes a first limiting part 11 and a second limiting part 12. A movable part 13 is provided between the first limiting part 11 and the second limiting part 12. The movable buckle 3 is rotatably mounted on the movable part 13 through the main torsion spring 4. The first auxiliary torsion spring 5 is mounted on the first limiting part 11, and the second auxiliary torsion spring 6 is mounted on the second limiting part 12. The first limiting part 11, the movable buckle 3, and the second limiting part 12 are all provided with corresponding shaft holes 14. The rotating shaft 2 passes through the shaft holes 14 of the first limiting part 11, the movable buckle 3, and the second limiting part 12 in sequence, and the rotating shaft 2 is connected to the first auxiliary torsion spring 5 and the second auxiliary torsion spring 6.

[0025] When assembling the belt buckle tail clip in this embodiment, both ends of the rotating shaft 2 are installed in the holes of the belt buckle, thereby enabling the belt buckle tail clip to be installed on the belt buckle. Compared to the existing belt buckle tail clips that only have one main torsion spring 4, this application adds an auxiliary torsion spring on each side of the main torsion spring 4. The movable buckle 3 can be provided with elastic force by three torsion springs. Even if one torsion spring loses its effectiveness, it can still provide sufficient elastic force to the movable buckle 3, which can improve the structural stability of the product and extend its service life. At the same time, the three torsion springs can also significantly increase the elastic force, providing a larger torque to the movable buckle 3, thereby improving the locking effect of the belt head.

[0026] Furthermore, a mounting position 31 is provided on the inner side of the movable buckle 3. The shaft hole 14 of the movable buckle 3 penetrates through the side walls on both sides of the mounting position 31. The main torsion spring 4 is disposed on the mounting position 31, with one end of the main torsion spring 4 abutting against the inner wall of the mounting position 31 and the other end abutting against the inner wall of the movable position 13. The main torsion spring 4 can push the movable buckle 3 away from the movable position 13, thereby enabling the movable buckle 3 to be tightly locked with the belt teeth, thus locking the head end of the belt.

[0027] Furthermore, the first limiting part 11 has a first mounting cavity 15, the inner wall of the first mounting cavity 15 is provided with a first slot 16, the rotating shaft 2 has a fixing groove 21, one end of the first auxiliary torsion spring 5 is engaged in the fixing groove 21, and the other end is engaged in the first slot 16; the second limiting part 12 has a second mounting cavity 17, the inner wall of the second mounting cavity 17 is provided with a second slot 18, one end of the second auxiliary torsion spring 6 is engaged in the fixing groove 21, and the other end is engaged in the second slot 18.

[0028] The above structure allows one end of the first auxiliary torsion spring 5 and the second auxiliary torsion spring 6 to be fixed to the first limiting part 11 and the second limiting part 12 respectively, and the other end to be fixed to the rotating shaft 2. This provides elastic support for the rotation of the rotating shaft 2, and in turn, provides elastic support for the movable buckle 3 through the rotating shaft 2, thereby improving the locking effect of the movable buckle 3.

[0029] Furthermore, the fixing groove 21 extends through the rotating shaft 2 axially; the first mounting cavity 15 has a first opening 19 communicating with the external space on the side opposite to the movable position 13, and one end of the first slot 16 extends to the first opening 19; the second mounting cavity 17 has a second opening 110 communicating with the external space on the side opposite to the movable position 13, and one end of the second slot 18 extends to the second opening 110.

[0030] The above structure allows the first auxiliary torsion spring 5 to slide into the first slot 16 through the first opening 19, and the second auxiliary torsion spring 6 to slide into the second slot 18 through the second opening 110. By sliding into the fixing slot 21 from both ends of the rotating shaft 2, the installation of the first auxiliary torsion spring 5 and the second auxiliary torsion spring 6 can be facilitated.

[0031] Furthermore, a buckle 7 is rotatably mounted on the tail clip body 1, which can fix the tail end of the belt to the tail clip body 1 during use.

[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A belt buckle tail clip having a plurality of springs, characterized by, include: The device comprises a tail clip body, a rotating shaft, a movable buckle, a main torsion spring, a first auxiliary torsion spring, and a second auxiliary torsion spring. The tail clip body includes a first limiting part and a second limiting part, with a movable position between the first limiting part and the second limiting part. The movable buckle is rotatably mounted on the movable position via the main torsion spring. The first auxiliary torsion spring is mounted on the first limiting part, and the second auxiliary torsion spring is mounted on the second limiting part. Each of the first limiting part, the movable buckle, and the second limiting part has a corresponding shaft hole. The rotating shaft passes through the shaft holes of the first limiting part, the movable buckle, and the second limiting part in sequence, and is connected to the first auxiliary torsion spring, the movable buckle, and the second auxiliary torsion spring.

2. A belt buckle tailgate having a plurality of springs as claimed in claim 1, wherein, The inner side of the movable buckle is provided with a mounting position, and the shaft hole of the movable buckle passes through the side walls on both sides of the mounting position. The main torsion spring is disposed on the mounting position, and one end of the main torsion spring abuts against the inner wall of the mounting position, and the other end abuts against the inner wall of the movable position.

3. A belt buckle tailgate having a plurality of springs as claimed in claim 1, wherein, The first limiting part has a first mounting cavity, and the inner wall of the first mounting cavity is provided with a first slot. The rotating shaft has a fixing slot. One end of the first auxiliary torsion spring is engaged in the fixing slot, and the other end is engaged in the first slot. The second limiting part has a second mounting cavity, and the inner wall of the second mounting cavity is provided with a second slot. One end of the second auxiliary torsion spring is engaged in the fixing slot, and the other end is engaged in the second slot.

4. A belt buckle tailgate having a plurality of springs as claimed in claim 3 wherein, The fixing groove extends axially through the rotating shaft; the first mounting cavity has a first opening communicating with the external space on the side opposite to the movable position, and one end of the first slot extends to the first opening; the second mounting cavity has a second opening communicating with the external space on the side opposite to the movable position, and one end of the second slot extends to the second opening.

5. A belt buckle tailgate having a plurality of springs as defined in claim 1, wherein, The tail clip body is also rotatably mounted with a buckle, which can be used to fix the tail end of the belt to the tail clip body during use.