An easy-to-replace zipper pull and zipper

Abstract

This utility model relates to an easily replaceable zipper head and zipper, including an upper zipper head, a lower zipper head, and a pull tab. A connecting platform is formed on the lower zipper head, and a polygonal prism-shaped connecting post is formed on the connecting platform. A connecting hole matching the connecting post is formed on the upper zipper head. A horizontally rotatable plastic connector is provided on the upper zipper head. The pull tab passes through the connector. An inverted T-shaped locking post is formed at the end of the connecting post that passes through the connecting hole. A locking groove matching the locking post and extending to one side through the connector is formed on the free end of the connector. A first limiting protrusion is formed on the inner wall of the locking groove. When the free end of the connector swings towards the locking post, the locking post passes through the opening of the locking groove and enters the locking groove. When the locking post abuts against the bottom of the locking groove, the first limiting protrusion locks onto the locking post, limiting the swing of the connector relative to the locking post. This easily replaceable zipper head and zipper allows for convenient disassembly and replacement of the zipper head, and the zipper head structure is very stable.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, and in particular to an easily replaceable zipper head and zipper. Background Technology

[0002] A zipper consists of a zipper belt and a zipper pull. The zipper pull is positioned between two zipper belts to allow the teeth on the two belts to engage or disengage. In the prior art, to facilitate the replacement of zipper pulls, for example, the utility model patent "A Zipper for Convenient Replacement of Zipper Pullers" (Publication No.: CN217284957U) discloses a structure for detaching and assembling the zipper pull through an installation mechanism. However, in the above structure, the spring-driven moving rod in the installation mechanism is prone to accidental contact, causing the upper and lower zipper pulls to separate unexpectedly, affecting the use of the zipper. Another example is the utility model patent "A Zipper and a Detachable Zipper Puller" (Publication No.: CN211021251U), which discloses a structure for detaching and connecting the upper flap (equivalent to the upper zipper pull) and the lower flap (equivalent to the lower zipper pull) through the cooperation of a fastening screw and a fastening nut. However, in the above structure, turning the fastening screw is relatively cumbersome, and the fastening screw and fastening nut are prone to loosening due to vibrations when the zipper pull moves, causing the upper and lower flaps to loosen, affecting the use of the zipper.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This utility model proposes an easily replaceable zipper head and zipper, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] An easily replaceable zipper head includes an upper zipper head, a lower zipper head, and a pull tab. A connecting platform is formed on the lower zipper head, and a polygonal prism-shaped connecting post is formed on the connecting platform. A connecting hole matching the connecting post is provided on the upper zipper head. A horizontally rotatable connector made of plastic is provided on the upper zipper head. The pull tab passes through the connector. An inverted T-shaped locking post is formed at the end of the connecting post passing through the connecting hole. A locking groove matching the locking post and extending to one side through the connector is provided on the free end of the connector. A first limiting protrusion is formed on the inner wall of the locking groove. When the free end of the connector swings towards the locking post, the locking post passes through the opening of the locking groove and enters the locking groove. When the locking post abuts against the bottom of the locking groove, the first limiting protrusion locks onto the locking post, limiting the swing of the connector relative to the locking post.

[0007] Preferably, a rotating post is formed on the upper zipper head, and the connecting member has a rotating hole that matches the rotating post and an installation groove that communicates with the rotating hole and extends through the connecting member to one side. The rotating post passes through the rotating hole and extends into the installation groove, and a retaining spring is provided on the part of the rotating post that extends into the installation groove.

[0008] Preferably, a positioning post is formed on the surface of the upper zipper head facing the connecting platform, and a positioning hole matching the positioning post is opened on the connecting platform, and the positioning post is inserted into the positioning hole.

[0009] Preferably, a limiting platform is formed on the connecting platform, and a limiting groove matching the limiting platform is opened on the surface of the upper zipper head facing the connecting platform. The connecting post and positioning hole are set on the limiting platform, the connecting hole and positioning post are set in the limiting groove, and the limiting platform is inserted into the limiting groove.

[0010] Preferably, a second limiting protrusion is formed on the surface of the free end of the connector facing the upper zipper head, and a first limiting hole matching the second limiting protrusion is provided on the upper zipper head. The second limiting protrusion is engaged into the first limiting hole as the connector swings.

[0011] Preferably, the free end of the connector has a sliding hole communicating with the snap-fit ​​groove, a limiting rod is inserted through the sliding hole, the upper end of the limiting rod is screwed through the sliding hole and a limiting cap is screwed on it, and a spring is sleeved on the limiting rod inside the sliding hole and tightly abutting against the limiting rod. The end face of the snap-fit ​​post has a second limiting hole matching the limiting rod, and the limiting rod is inserted into the second limiting hole under the action of the spring.

[0012] A zipper, including this easily replaceable zipper pull.

[0013] In summary, the beneficial effects of this utility model are as follows: the engagement of the locking post and the locking groove keeps the connecting post within the connecting hole, thus achieving a tight fit between the upper and lower zipper heads and enabling the installation of the zipper heads. The swinging connector allows the locking post to exit from the locking groove and the connecting post to exit from the connecting hole, separating the upper and lower zipper heads and enabling the disassembly of the zipper heads. The zipper head assembly and disassembly operations are very convenient, requiring only the swinging connector, facilitating zipper head replacement. Furthermore, after the swinging connector separates from the locking post, the pull tab can be removed from the connector, also facilitating pull tab replacement. Moreover, after the connector and the locking post are engaged, the force applied to the connector when the pull tab slides on the zipper head via the connector is mainly concentrated in the vertical direction, making the connector less susceptible to separation from the locking post due to the force exerted when pulling the zipper head. This ensures the stability of the upper and lower zipper heads after tight fitting, thereby guaranteeing the stability of the zipper heads during use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0019] Figure 5 This is an exploded view of the present invention;

[0020] Figure 6 This is a schematic diagram of the upper zipper head in this utility model;

[0021] Figure 7 This is a schematic diagram of the connecting component in this utility model.

[0022] In the diagram: 1. Upper zipper head; 11. Connecting hole; 12. Rotating post; 13. Positioning post; 14. Limiting groove; 15. First limiting hole; 2. Lower zipper head; 21. Connecting platform; 22. Connecting post; 23. Snap-fit ​​post; 24. Positioning hole; 25. Limiting platform; 26. Second limiting hole; 3. Pull tab; 4. Connecting piece; 41. Snap-fit ​​groove; 42. First limiting protrusion; 43. Rotating hole; 44. Mounting groove; 45. Second limiting protrusion; 46. Sliding hole; 5. Snap spring; 6. Limiting rod; 61. Limiting cap; 62. Spring. Detailed Implementation

[0023] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. 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 skilled in the art without creative effort are within the protection scope of this utility model.

[0024] As shown in the figure, an easily replaceable zipper pull includes an upper zipper pull 1, a lower zipper pull 2, and a pull tab 3. The lower zipper pull 2 ​​has a connecting platform 21, and a polygonal prism-shaped connecting post 22 is formed on the connecting platform 21. The upper zipper pull 1 has a connecting hole 11 that matches the connecting post 22. The upper zipper pull 1 is provided with a horizontally rotatable plastic connector 4. The pull tab 3 passes through the connector 4. The end of the connecting post 22 that passes through the connecting hole 11 forms an inverted T-shaped rod. The connector 4 has a snap-fit ​​post 23, and a snap-fit ​​groove 41 that matches the snap-fit ​​post 23 and extends through the connector 4 to one side. A first limiting protrusion 42 is formed on the inner wall of the snap-fit ​​groove 41. The free end of the connector 4 swings toward the snap-fit ​​post 23 so that the snap-fit ​​post 23 passes through the opening of the snap-fit ​​groove 41 and enters the snap-fit ​​groove 41. When the snap-fit ​​post 23 abuts against the bottom of the snap-fit ​​groove 41, the first limiting protrusion 42 locks onto the snap-fit ​​post 23 and limits the swing of the connector 4 relative to the snap-fit ​​post 23.

[0025] Specifically, the structure of the connecting member 4 rotatably connected to the upper zipper head 1 is as follows: a rotating post 12 is formed on the upper zipper head 1, and the connecting member 4 is provided with a rotating hole 43 that matches the rotating post 12 and an installation groove 44 that communicates with the rotating hole 43 and extends through the connecting member 4 to one side. The rotating post 12 passes through the rotating hole 43 and extends into the installation groove 44. A retaining spring 5 is provided on the part of the rotating post 12 that extends into the installation groove 44. The retaining spring 5 limits the axial movement of the connecting member 4 relative to the rotating post 12, so that the connecting member 4 can be rotatably held on the rotating post 12 to realize the rotatable connection between the connecting member 4 and the upper zipper head 1, making the overall assembly of the zipper head more convenient.

[0026] In the above structure, when the snap-fit ​​pin 23 is located at the bottom of the snap-fit ​​groove 41, it is restrained by the first limiting protrusion 42 and will not have relative displacement with the connecting member 4, thus limiting the swing of the connecting member 4. When the connecting member 4 remains stable, the engagement of the snap-fit ​​groove 41 and the snap-fit ​​pin 23 limits the axial displacement of the connecting pin 22 relative to the upper zipper head 1, keeping the connecting pin 22 within the connecting hole 11 and limiting the axial displacement of the upper zipper head 1 and the lower zipper head 22. The relative displacement of the upper zipper head 1 and the lower zipper head 2 is limited by the engagement of the multi-faceted connecting post 22 and the connecting hole 11. This limits the relative displacement of the upper zipper head 1 and the lower zipper head 2 in the circumferential direction of the connecting post 22, thereby achieving the fastening and splicing of the upper zipper head 1 and the lower zipper head 2 and realizing the installation of the zipper head. The zipper head formed by the upper zipper head 1 and the lower zipper head 2 can cooperate with the zipper chain to realize the joining or separation of the chain teeth. When it is necessary to disassemble the zipper head, the free end of the connecting piece 4 is pushed away from the zipper head. The directional swing of the locking post 23 causes the first limiting protrusion 42 to move away from the position of contacting the locking post 23, allowing the locking post 23 to exit the locking groove 41 as the connecting piece 4 swings. At this time, the connecting post 22 can be removed from the connecting hole 11 to separate the upper zipper head 1 from the lower zipper head 2, thus achieving the disassembly of the zipper head. The above-mentioned disassembly and assembly of the zipper head is very convenient, requiring only the swinging of the connecting piece 4, which facilitates the replacement of the zipper head. At the same time, after the swinging of the connecting piece 4 and the locking post 23 separates, the pull tab 3 can be removed from the connecting piece 4, which also facilitates the replacement of the pull tab 3. Furthermore, after the connecting piece and the locking post 23 are locked together, when the pull tab 3 drives the zipper head to slide on the chain through the connecting piece 4, the force applied to the connecting piece 4 is mainly concentrated in the vertical direction, which makes the connecting piece 4 less likely to be separated from the locking post 23 by the force when the zipper head is pulled. This ensures the stability of the upper zipper head 1 and the lower zipper head 2 after being tightly joined, thereby ensuring the stability of the zipper head during use.

[0027] Furthermore, based on the above structure, a positioning post 13 is formed on the surface of the upper zipper head 1 facing the connecting platform 21. The connecting platform 21 is provided with a positioning hole 24 that matches the positioning post 13. The positioning post 13 is inserted into the positioning hole 24. Through the cooperation between the positioning post 13 and the positioning hole 24, the relative displacement of the upper zipper head 1 and the lower zipper head 2 in the horizontal direction is limited, thereby strengthening the stability when the upper zipper head 1 and the lower zipper head 2 are fastened together, and thus ensuring the stability of the zipper head during use.

[0028] Furthermore, based on the above structure, a limiting platform 25 is formed on the connecting platform 21. A limiting groove 14 matching the limiting platform 25 is opened on the surface of the upper zipper head 1 facing the connecting platform 21. The connecting post 22 and the positioning hole 24 are set on the limiting platform 25. The connecting hole 11 and the positioning post 13 are set in the limiting groove 14. The limiting platform 25 is inserted into the limiting groove 14. The cooperation between the limiting platform 25 and the limiting groove 14 limits the relative displacement of the upper zipper head 1 and the lower zipper head 2 in the horizontal direction, thereby strengthening the stability when the upper zipper head 1 and the lower zipper head 2 are fastened together, and thus ensuring the stability of the zipper head during use.

[0029] Furthermore, based on the above structure, a second limiting protrusion 45 is formed on the surface of the free end of the connector 4 facing the upper zipper head 1. The upper zipper head 1 is provided with a first limiting hole 15 that matches the second limiting protrusion 45. The second limiting protrusion 45 is inserted into the first limiting hole 15 as the connector 4 swings. Through the cooperation between the second limiting protrusion 45 and the first limiting hole 15, the rotation of the free end of the connector 4 relative to the upper zipper head 1 is limited, so that the locking post 23 is more firmly held in the locking groove 41, thereby enhancing the stability when the upper zipper head 1 and the lower zipper head 2 are fastened together, and enhancing the stability when the zipper head is in use.

[0030] Furthermore, based on the above structure, the free end of the connecting member 4 is provided with a sliding hole 46 communicating with the snap-fit ​​groove 41. A limiting rod 6 passes through the sliding hole 46. The upper end of the limiting rod 6 passes through the sliding hole 46 and is screwed with a limiting cap 61. A spring 62 is sleeved on the limiting rod 6, located inside the sliding hole 46 and tightly abutting against the limiting rod 6. The limiting cap 61 limits the sliding of the limiting rod 6 in the sliding hole 46, preventing the limiting rod 6 from coming out of the sliding hole 46 under the action of the spring 62. A second limiting hole 26 matching the limiting rod 6 is provided on the end face of the snap-fit ​​post 23. The limiting rod 6 is inserted into the second limiting hole 26 under the action of the spring 62. When the connecting member 4 is swung toward the snap-fit ​​post 23 to allow the snap-fit ​​post 23 to pass into the snap-fit ​​groove 41... During the process, the limiting rod 6 is pulled upward by the limiting cap 61, causing the lower end of the limiting rod 6 to retract into the sliding hole 46. When the locking post 23 moves to the bottom of the locking groove 41 and is limited by the first limiting protrusion 42, the lower end of the limiting rod 6 is aligned with the second limiting hole 26. After the limiting cap 61 is released, the limiting rod 6 slides downward under the action of the spring 62, causing the lower end of the limiting rod 6 to insert into the second limiting hole 26. The cooperation between the limiting rod 6 and the second limiting hole 26 locks the swing of the connecting piece 4 relative to the locking post 23, keeping the locking post 23 in the locking groove 41. This strengthens the stability of the upper zipper head 1 and the lower zipper head 2 after being tightly joined, ensuring the stability of the zipper head during use. When it is necessary to disassemble the zipper head, simply pull the limiting rod 6 upward and then swing the connecting piece 4.

[0031] A zipper includes an easily replaceable zipper head, which facilitates the removal and replacement of the zipper head on the zipper belt, thereby simplifying the use of the zipper and extending its service life.

[0032] The above description is only a preferred embodiment of the present utility model and is 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 should be included within the protection scope of the present utility model.

Claims

1. A replaceable zipper pull, comprising an upper zipper pull (1), a lower zipper pull (2), and a pull tab (3), wherein a connecting platform (21) is formed on the lower zipper pull (2), characterized in that: The connecting platform (21) has a polygonal prism-shaped connecting post (22). The upper zipper head (1) has a connecting hole (11) that matches the connecting post (22). The upper zipper head (1) is provided with a horizontally rotatable plastic connector (4). The pull tab (3) passes through the connector (4). The end of the connecting post (22) that passes through the connecting hole (11) has an inverted T-shaped locking post (23). The free end of the connector (4) has a locking post (23) that matches the locking post (23). The connector (4) is matched and extends to one side through the snap-fit ​​groove (41). A first limiting protrusion (42) is formed on the inner wall of the snap-fit ​​groove (41). The free end of the connector (4) swings toward the snap-fit ​​post (23) so that the snap-fit ​​post (23) passes through the opening of the snap-fit ​​groove (41) and enters the snap-fit ​​groove (41). When the snap-fit ​​post (23) abuts against the bottom of the snap-fit ​​groove (41), the first limiting protrusion (42) is locked on the snap-fit ​​post (23) to limit the swing of the connector (4) relative to the snap-fit ​​post (23).

2. The replaceable zipper pull according to claim 1, characterized in that: A rotating post (12) is formed on the upper zipper head (1). A rotating hole (43) matching the rotating post (12) and an installation groove (44) communicating with the rotating hole (43) and extending through the connector (4) to one side are provided on the connector (4). The rotating post (12) passes through the rotating hole (43) and extends into the installation groove (44). A retaining spring (5) is provided on the part of the rotating post (12) that extends into the installation groove (44).

3. The replaceable zipper pull according to claim 2, characterized in that: A positioning post (13) is formed on the surface of the upper zipper head (1) facing the connecting platform (21). A positioning hole (24) matching the positioning post (13) is opened on the connecting platform (21). The positioning post (13) is inserted into the positioning hole (24).

4. The replaceable zipper pull according to claim 3, characterized in that: A limiting platform (25) is formed on the connecting platform (21). The upper zipper head (1) has a limiting groove (14) that matches the limiting platform (25) on the surface facing the connecting platform (21). The connecting pin (22) and the positioning hole (24) are set on the limiting platform (25). The connecting hole (11) and the positioning pin (13) are set in the limiting groove (14). The limiting platform (25) is inserted into the limiting groove (14).

5. The replaceable zipper pull according to claim 4, characterized in that: The free end of the connector (4) has a second limiting protrusion (45) on the surface facing the upper zipper head (1). The upper zipper head (1) has a first limiting hole (15) that matches the second limiting protrusion (45). The second limiting protrusion (45) is inserted into the first limiting hole (15) as the connector (4) swings.

6. The replaceable zipper pull according to claim 5, characterized in that: The free end of the connector (4) is provided with a sliding hole (46) communicating with the snap-fit ​​groove (41). A limiting rod (6) is inserted into the sliding hole (46). The upper end of the limiting rod (6) passes through the sliding hole (46) and is screwed with a limiting cap (61). A spring (62) is sleeved on the limiting rod (6) and is located inside the sliding hole (46) and tightly abuts against the limiting rod (6). A second limiting hole (26) matching the limiting rod (6) is provided on the end face of the snap-fit ​​post (23). The limiting rod (6) is inserted into the second limiting hole (26) under the action of the spring (62).

7. A zipper, characterized in that: Includes the replaceable zipper head as described in any one of claims 1-6.

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