Self-locking anti-slip zipper

Abstract

The utility model relates to a self-locking type anti-slip zipper, which aims at solving the technical problem that a zipper head is easy to return after a current zipper rack is pulled to be closed, and the zipper rack is pulled open, and comprises a self-locking type zipper rack, two sides of the self-locking type zipper rack are respectively connected with a zipper belt, the self-locking type zipper rack is connected with the zipper head in a meshed mode, and a pull ring is sleeved on the zipper head. The device further comprises a limiting structure. The limiting structure is arranged at the head end of the chain belt; the limiting structure comprises a fixing block, a limiting rod, a connecting plate and a lantern ring; the fixed block is fixedly arranged on one side of the head end of the chain belt; the limiting rod is arranged in a penetrating hole A formed in the fixing block in a penetrating mode. The connecting plate is fixedly arranged at the outer end of the limiting rod; the lantern ring sleeves the inner section of the limiting rod; the limiting rod between the lantern ring and the fixing block is sleeved with a spring; and the inner end of the limiting rod is matched with a through hole B formed in the zipper head in a penetrating manner. The zipper has the advantages that the zipper head is limited after the self-locking type chain rack is closed, and the self-locking type chain rack is prevented from being pulled open due to the fact that the zipper head retreats.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, in particular to a self-locking anti-slip zipper. Background Art

[0002] Zippers are connectors that rely on continuously arranged chain teeth to connect or separate items. They are now widely used in clothing, bags, tents, etc.

[0003] For zippers with self-locking sprockets, after the sprockets are pulled closed, the zipper head is prone to retraction, causing the sprockets to open.

[0004] In view of this, we propose a self-locking anti-slip zipper. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, meet practical needs, and provide a self-locking anti-slip zipper to solve the technical problem that after the current chain teeth are pulled closed, the zipper head is prone to retreat, causing the chain teeth to be pulled open.

[0006] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is as follows: a self-locking anti-slip zipper is designed, including a self-locking chain tooth bar, two sides of the self-locking chain tooth bar are respectively connected to the chain belt, the self-locking chain tooth bar is meshed with a chain head, the chain head is provided with a pull ring, and also includes a limiting structure;

[0007] The limiting structure is arranged at the head end of the chain belt;

[0008] The limiting structure includes a fixing block, a limiting rod, a connecting plate and a collar;

[0009] The fixed block is fixedly arranged on one side of the first end of the chain belt;

[0010] The limiting rod is inserted into the through hole A provided on the fixing block;

[0011] The connecting plate is fixed to the outer end of the limiting rod;

[0012] The collar is sleeved on the inner section of the limiting rod;

[0013] Wherein, a spring is sleeved on the limiting rod between the collar and the fixing block;

[0014] Wherein, the inner end of the limiting rod is fitted with the through hole B provided on the chain head.

[0015] Preferably, the spring is always in a compressed state;

[0016] Wherein, the connecting plate and the fixing block are limitedly matched.

[0017] Preferably, the collar and spring are not in contact with the chain head.

[0018] Preferably, the diameter of the through hole B is larger than the end diameter of the limiting rod.

[0019] Preferably, the top end of the connecting plate is configured as an arc-shaped surface.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. The utility model sets a fixed block, a limiting rod, a connecting plate, a ring and a spring, which has the advantage of limiting the chain head after the self-locking sprocket is closed, avoiding the chain head from moving back and causing the self-locking sprocket to be pulled apart, and solves the problem that the zipper head is prone to moving back after the sprocket is pulled closed, causing the sprocket to be pulled apart.

[0022] 2. The utility model has the advantage that when the connecting plate is pulled, the fingers will not be hurt when they come into contact with the curved surface by providing the curved surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the limiting structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the fixed block structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the chain head structure of the present utility model;

[0027] In the figure: 1. Chain belt; 2. Self-locking chain teeth; 3. Chain head; 4. Pull ring; 5. Limiting structure;

[0028] 301, perforation B;

[0029] 501, fixed block; 502, limit rod; 503, connecting plate; 504, collar; 505, spring;

[0030] 5011, perforation A;

[0031] 5031. Curved surface. DETAILED DESCRIPTION

[0032] The present invention is further described below with reference to the accompanying drawings and embodiments:

[0033] Example 1: A self-locking anti-slip zipper, see Figures 1 to 4, including a self-locking sprocket 2, with chain belts 1 connected to both sides of the self-locking sprocket 2, a chain head 3 meshingly connected to the self-locking sprocket 2, a pull ring 4 sleeved on the chain head 3, and a limiting structure 5; the limiting structure 5 is arranged at the head end of the chain belt 1;

[0034] The limiting structure 5 includes a fixed block 501, a limiting rod 502, a connecting plate 503 and a ring 504; the fixed block 501 is fixed on one side of the head end of the chain belt 1; the limiting rod 502 is passed through the through hole A5011 opened on the fixed block 501; the connecting plate 503 is fixed on the outer end of the limiting rod 502; the ring 504 is sleeved on the inner section of the limiting rod 502; wherein, a spring 505 is sleeved on the limiting rod 502 between the ring 504 and the fixed block 501, and the two ends of the spring 505 are fixedly connected to the ring 504 and the fixed block 501 respectively, and the elastic coefficient of the spring 505 is selected and used by technical personnel in this profession according to actual conditions; wherein, the inner end of the limiting rod 502 is penetrated and matched with the through hole B301 opened on the chain head 3.

[0035] The utility model provides a fixing block 501, a limiting rod 502, a connecting plate 503, a collar 504 and a spring 505, which has the advantage of limiting the chain head 3 after the self-locking sprocket 2 is closed, thereby preventing the chain head 3 from retreating and causing the self-locking sprocket 2 to be pulled apart. This solves the problem that the zipper head is prone to retreat after the sprocket is pulled closed, causing the sprocket to be pulled apart.

[0036] Specifically, the spring 505 is always in a compressed state, wherein the connecting plate 503 is limitedly engaged with the fixing block 501. The spring 505 always provides a force to push the limiting rod 502, so that the inner end of the limiting rod 502 is inserted into the through hole B301.

[0037] Furthermore, the collar 504 and the spring 505 do not contact the chain head 3 and do not affect the pulling of the chain head 3 .

[0038] Furthermore, the diameter of the through hole B301 is larger than the end diameter of the limiting rod 502, so that the inner end of the limiting rod 502 can be inserted into the through hole B301.

[0039] It is worth noting that the top end of the connecting plate 503 is configured as an arc-shaped surface 5031 .

[0040] The present invention has the advantage that, by providing the arc surface 5031 , when the connecting plate 503 is pulled, the fingers will not be hurt when they come into contact with the arc surface 5031 and pull the connecting plate 503 .

[0041] Working principle: Using the device of the present invention, pull the pull ring 4 to move the chain head 3, so that the self-locking chain tooth bar 2 is pulled together. When the chain head 3 is about to be pulled to the top, move the connecting plate 503 outward, and the limiting rod 502 moves outward accordingly. The outward movement of the ring 504 further compresses the spring 505, pulls the chain head 3 to the top, releases the connecting plate 503, and under the action of the spring 505, the ring 504 drives the limiting rod 502 to move back until the inner end of the limiting rod 502 is inserted into the through hole B301, thereby limiting the chain head 3.

[0042] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A self-locking anti-slip zipper, comprising a self-locking chain tooth bar (2), wherein both sides of the self-locking chain tooth bar (2) are respectively connected to a chain belt (1), a chain head (3) is meshedly connected to the self-locking chain tooth bar (2), and a pull ring (4) is sleeved on the chain head (3), characterized in that: Also includes: A limiting structure (5) is arranged at the head end of the chain belt (1); The limiting structure (5) comprises: A fixed block (501) is fixedly mounted on one side of the head end of the chain belt (1); A limiting rod (502) is inserted into a through hole A (5011) provided on the fixing block (501); A connecting plate (503) is fixed to the outer end of the limiting rod (502); A collar (504) sleeved on the inner section of the limiting rod (502); Wherein, a spring (505) is sleeved on the limiting rod (502) between the collar (504) and the fixing block (501); The inner end of the limiting rod (502) is fitted into a through hole B (301) provided on the chain head (3).

2. A self-locking anti-slip zipper according to claim 1, characterized in that: The spring (505) is always in a compressed state; Wherein, the connecting plate (503) and the fixing block (501) are position-limitingly matched.

3. The self-locking anti-slip zipper according to claim 1, characterized in that: The collar (504) and the spring (505) are not in contact with the chain head (3).

4. The self-locking anti-slip zipper according to claim 1, characterized in that: The diameter of the through hole B (301) is larger than the end diameter of the limiting rod (502).

5. The self-locking anti-slip zipper according to claim 1, characterized in that: The top end of the connecting plate (503) is configured as an arc-shaped surface (5031).

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