Anti-pinch zipper puller

Abstract

The utility model relates to the technical field of zipper pullers, and provides an anti-pinch zipper puller which comprises an upper puller, a lower puller, a rear axle and a connecting seat. A front axle is arranged on the upper wall of the upper pull head, a threaded rod is arranged on the lower wall of the front axle, and the threaded rod penetrates through the upper pull head; the connecting seat is arranged below the upper pull head, a positioning hole is formed in the connecting seat, the threaded rod penetrates through the connecting seat, and the lower pull head is arranged below the connecting seat. Through connection of the threaded rod and the threaded sleeve, the upper puller and the lower puller can be detached, when the zipper pullers clamp cloth, the pullers can be separated, clamping can be relieved, damage to the cloth caused by pulling and hard dragging is avoided, the independent bridges for fixing the pulling pieces are arranged in a separated mode, and when clamping is caused, the front bridge can be rapidly rotated, the threaded rod rotates, and therefore the zipper pulls can be rapidly clamped. And the zipper head can be quickly detached without other equipment.

Description

Technical Field

[0001] This utility model belongs to the field of zipper head technology, specifically relating to an anti-pinch zipper head. Background Technology

[0002] The zipper pull is the core component of a zipper, typically made of metal, plastic, or nylon. It includes a pull tab and a main body structure, and is used to control the opening and closing of the zipper teeth. Its design combines functionality and aesthetics, and some models are equipped with locking mechanisms to prevent accidental opening. It is widely used in clothing, bags, and other industries.

[0003] A known authorized patent with application number 202420795654.7 discloses an anti-pinch zipper head: The zipper head comprises an upper zipper seat, a lower zipper seat, and a connecting block. The upper zipper seat is located at the upper end of the connecting block, and the lower zipper seat is located at the lower end. Vertical threaded holes are respectively formed at both ends of the connecting block. A through hole is formed at the top of the upper zipper seat corresponding to the threaded hole at the front end of the connecting block, and a through hole is formed at the bottom of the lower zipper seat corresponding to the threaded hole at the tail end of the connecting block. This utility model solves the problem of difficulty in reinstalling the zipper head by combining the upper zipper seat, lower zipper seat, and connecting block into a detachable structure. This allows the zipper head to be disassembled and reassembled when it detaches from the zipper, thus addressing the issue of difficulty in reinstalling the zipper head.

[0004] However, in implementing the relevant technology, the following problems were found with the above technical solution: when using it, if the fabric is clamped, special tools are required to remove the screws, which is cumbersome and slow, and it is difficult to quickly contact the clamp.

[0005] Therefore, an anti-pinch zipper head is proposed to solve the above problems. Utility Model Content

[0006] This utility model proposes an anti-pinch zipper head, which solves the problem in related technologies that when encountering situations where fabric is clamped, special tools are still needed to remove the screws, which is cumbersome, slow, and difficult to quickly contact the clamp.

[0007] The technical solution of this utility model is as follows: an anti-pinch zipper head, comprising: an upper zipper head, a lower zipper head, a rear bridge, and a connecting seat, wherein a pull tab is sleeved inside the upper zipper head;

[0008] The upper wall of the upper pull head is provided with a front axle, and the lower wall of the front axle is provided with a threaded rod, which passes through the upper pull head;

[0009] The connecting seat is located below the upper pull head, and a positioning hole is provided inside the connecting seat. The threaded rod passes through the connecting seat, and the lower pull head is located below the connecting seat.

[0010] Preferably, a connecting block is hinged to one side of the front axle, the rear axle is fixedly connected to the upper wall of the upper pull head, the other end of the connecting block is snapped into the inner wall of the rear axle, and a pin is inserted into the interior of the rear axle, the pin passing through the end of the connecting block.

[0011] Preferably, a threaded sleeve is fixedly connected to the upper wall of the pull-down head, the threaded sleeve passes through the positioning hole, the threaded sleeve is threadedly connected to the threaded rod, and the threaded sleeve is in close contact with the outer wall of the positioning hole.

[0012] Preferably, the outer walls of both the upper and lower pull heads are provided with limit blocks, and the upper and lower sides of the connecting seat are provided with limit grooves corresponding to the limit blocks.

[0013] Preferably, the pin is detachable.

[0014] Preferably, the outer walls of the upper pull head, lower pull head, and connecting seat are all coated with polytetrafluoroethylene.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The connection between the threaded rod and the threaded sleeve allows the upper and lower zipper heads to be disassembled. When the zipper head clamps the fabric, it can be separated to release the clamp and avoid damage to the fabric caused by pulling. In addition, the independent bridge that fixes the zipper tab is set separately. When clamping occurs, the front bridge can be rotated to rotate the threaded rod, and the zipper head can be quickly disassembled without the need for other equipment. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a top-view three-dimensional structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the pin structure of this utility model.

[0022] In the diagram: 1. Upper pull head; 2. Lower pull head; 3. Rear axle; 4. Front axle; 5. Connecting block; 6. Pin; 7. Pull tab; 8. Connecting seat; 9. Threaded rod; 10. Threaded sleeve; 11. Positioning hole; 12. Limiting groove; 13. Limiting block. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Please see Figure 1 -4, an anti-pinch zipper head, comprising: an upper zipper head 1, a lower zipper head 2, a rear bridge 3, and a connecting seat 8, wherein a pull tab 7 is sleeved inside the upper zipper head 1;

[0025] The upper wall of the upper pull head 1 is provided with a front axle 4, and the lower wall of the front axle 4 is provided with a threaded rod 9, which passes through the upper pull head 1;

[0026] The connecting seat 8 is located below the upper pull head 1. The connecting seat 8 has a positioning hole 11 inside. The threaded rod 9 passes through the connecting seat 8. The lower pull head 2 is located below the connecting seat 8.

[0027] The technical solution provided in this embodiment is as follows: When the zipper head is in use and the zipper suddenly clamps the fabric, first push the pin 6 to one side, then pull out the pin 6, then verticalize the connecting block 5 and rotate the connecting block 5. The rotation of the connecting block 5 drives the front bridge 4 to rotate, and the front bridge 4 drives the threaded rod 9 to rotate, so that the threaded rod 9 is disconnected from the threaded sleeve 10, and the head can be disassembled. After contacting the clamp, the zipper head is installed. First, insert the threaded sleeve 10 above the pull-down head 2 into the positioning hole 11, and then install the pull-down head 2. The limiting block 13 is inserted into the limiting groove 12. Then the upper pull head 1 is installed. During installation, the limiting block 13 below the upper pull head 1 is first placed inside the limiting groove 12 above the connecting seat 8. Then the threaded rod 9 below the front axle 4 is passed through the upper pull head 1. Then the front axle 4 is rotated so that the threaded rod 9 is threadedly connected to the threaded sleeve 10. After the connection is complete, the other end of the connecting block 5 is placed in the notch of the rear axle 3. Then the pin 6 is inserted into the rear axle 3 to fix the connecting block 5 to the rear axle 3 and complete the reassembly of the zipper head.

[0028] Furthermore, a connecting block 5 is hinged to one side of the front axle 4, the rear axle 3 is fixedly connected to the upper wall of the upper pull head 1, the other end of the connecting block 5 is snapped into the inner wall of the rear axle 3, and a pin 6 is inserted into the interior of the rear axle 3, the pin 6 passing through the end of the connecting block 5.

[0029] Specifically, by separating the front axle 4 and the rear axle 3, it is possible to ensure that the front axle 4 can rotate independently while preventing the pull tab 7 from accidentally falling off during normal use.

[0030] Furthermore, a threaded sleeve 10 is fixedly connected to the upper wall of the pull-down head 2. The threaded sleeve 10 passes through the positioning hole 11 and is threadedly connected to the threaded rod 9. The threaded sleeve 10 is in close contact with the outer wall of the positioning hole 11.

[0031] Specifically, the threaded sleeve 10 and the connecting seat 8 are connected by a plug-in design, which can fix the connecting seat 8 and separate the upper pull head 1, the lower pull head 2 and the connecting seat 8, thereby enabling the zipper head to be quickly disassembled.

[0032] Furthermore, both the upper pull head 1 and the lower pull head 2 are provided with limit blocks 13 on their outer walls, and the upper and lower sides of the connecting seat 8 are provided with limit grooves 12 corresponding to the limit blocks 13.

[0033] Specifically, the position of the connecting seat 8 is further fixed by setting the limiting block 13 and the limiting groove 12 to prevent the connecting seat 8 from moving accidentally during normal use.

[0034] Furthermore, pin 6 is detachable.

[0035] Specifically, the detachable design prevents the pin from being difficult to remove in an emergency, making it easier to disassemble the zipper head.

[0036] Furthermore, the outer walls of the pull-up head 1, pull-down head 2, and connecting seat 8 are all coated with polytetrafluoroethylene.

[0037] Specifically, the PTFE coating reduces the friction between the zipper pull and the fabric, thus reducing the probability of fabric getting caught.

[0038] 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, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An anti-pinch zipper head comprising: The upper pull head (1), the lower pull head (2), the rear axle (3), and the connecting seat (8) are characterized in that a pull tab (7) is sleeved inside the upper pull head (1). The upper wall of the upper pull head (1) is provided with a front axle (4), and the lower wall of the front axle (4) is provided with a threaded rod (9), which passes through the upper pull head (1). The connecting seat (8) is located below the upper pull head (1), and a positioning hole (11) is provided inside the connecting seat (8). The threaded rod (9) passes through the connecting seat (8), and the lower pull head (2) is located below the connecting seat (8).

2. The anti-pinch zipper head of claim 1, wherein: A connecting block (5) is hinged to one side of the front axle (4), the rear axle (3) is fixedly connected to the upper wall of the upper pull head (1), the other end of the connecting block (5) is snapped into the inner wall of the rear axle (3), and a pin (6) is inserted into the interior of the rear axle (3), the pin (6) passing through the end of the connecting block (5).

3. The anti-pinch zipper head of claim 1, wherein: The upper wall of the pull-down head (2) is fixedly connected with a threaded sleeve (10), the threaded sleeve (10) passes through the positioning hole (11), the threaded sleeve (10) is threadedly connected to the threaded rod (9), and the threaded sleeve (10) is in close contact with the outer wall of the positioning hole (11).

4. The anti-pinch zipper head of claim 1, wherein: The outer walls of the upper pull head (1) and the lower pull head (2) are provided with limit blocks (13), and the upper and lower sides of the connecting seat (8) are provided with limit grooves (12) corresponding to the limit blocks (13).

5. The anti-pinch zipper pull according to claim 2, characterized in that: The pin (6) is detachable.

6. The anti-pinch zipper pull according to claim 1, characterized in that: The outer walls of the upper pull head (1), the lower pull head (2), and the connecting seat (8) are all coated with polytetrafluoroethylene.

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