Zipper with replaceable zipper teeth

Abstract

The utility model discloses a zipper with replaceable zipper teeth, which relates to the technical field of zippers and comprises a zipper sheet, a connecting strip arranged at the edge of the zipper sheet and a zipper tooth body fixed with the connecting strip. A through hole is formed in the broaching tooth body, a twisting column is rotationally installed in the through hole, a sinking groove is formed in the end, facing the connecting strip, of the twisting column, and a fixing column is arranged in the sinking groove. A stud is arranged at the end part of the fixed column and corresponds to a screw hole formed in the connecting strip; a strip-shaped groove is formed in the side wall of the sinking groove, a clamping pin is arranged on the side face of the fixing column and clamped in the strip-shaped groove, and the fixing column moves in the sinking groove along the track of the strip-shaped groove along with matching of the stud and the screw hole. When the stud is completely embedded into the screw hole, the clamping pin is located in a second clamping groove obliquely formed in one end of the strip-shaped groove; when the stud is separated from the screw hole, the clamping pin is located in a first clamping groove obliquely formed in the other end of the strip-shaped groove. And the pull teeth and the connecting strip are fixed and separated simply.

Description

Technical Field

[0001] This utility model relates to the field of zipper technology, specifically to a zipper with replaceable teeth. Background Technology

[0002] Zippers are widely used in daily life and industrial production, applied to various garments, bags, tents, and other items, serving as an extremely common connector. However, a significant problem exists in most zippers currently on the market. Traditional zippers typically have their teeth fixed to the chain and connecting strip, forming a single integrated structure. If a tooth is damaged, such as broken or worn, preventing proper engagement, the entire zipper often needs to be replaced.

[0003] Replacing zippers is not only cumbersome, but also extremely difficult, especially for zippers installed on complex items such as high-end clothing or specially structured bags. Replacing zippers can damage the items themselves and consume significant time and resources. Furthermore, discarded zippers result in unnecessary resource waste, contradicting current environmental and sustainable development principles. Therefore, developing a zipper with easily replaceable zipper teeth has become a pressing issue in this field. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a zipper with replaceable teeth.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A zipper with replaceable teeth includes a chain piece, a connecting strip located at the edge of the chain piece, and a tooth body fixed to the connecting strip.

[0007] The tooth body is provided with a through hole, and a torsion post is rotatably installed in the through hole. A groove is opened at the end of the torsion post facing the connecting strip, and a fixing post is provided in the groove. A stud is provided at the end of the fixing post, which corresponds to the screw hole provided on the connecting strip.

[0008] The side wall of the settling tank is provided with a strip groove, and the side of the fixing post is provided with a locking pin that is engaged in the strip groove. The fixing post moves along the track of the strip groove in the settling tank as the stud and the screw hole cooperate.

[0009] When the stud is fully embedded in the screw hole, the locking pin moves to the second locking groove, which is inclined at one end of the strip groove; when the stud is disengaged from the screw hole, the locking pin moves to the first locking groove, which is inclined at the other end of the strip groove.

[0010] Preferably, the spring at the end of the fixing post away from the stud is connected to the inner wall of the torsion post, and the spring is in a compressed state when the locking pin is in the first slot and in a stretched state when the locking pin is in the second slot.

[0011] Preferably, the axial direction of the strip groove is parallel to that of the torsion column, and both the first slot and the second slot are distributed along the axial direction of the sink.

[0012] Preferably, the first slot is arranged along the direction in which the stud and the screw hole are unscrewed, and the second slot is arranged along the direction in which the stud and the screw hole are tightened.

[0013] Preferably, a twisting plate is provided at the end of the torsion post away from the settling groove, and the twisting plate is located at the opening of the through hole; a torsion groove is provided in the through hole, and the side of the torsion post is secured in the torsion groove by a retaining ring.

[0014] Preferably, the tooth body is provided with a snap groove that engages with the connecting strip, and the snap groove has a notch on its side; a positioning pin is provided on the side wall of the snap groove near the notch, and a positioning hole is provided on the connecting strip that engages with the positioning pin.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. By setting through holes in the tooth body to rotate and install torsion pins, the screw of the fixed post in the groove of the torsion pin cooperates with the screw hole of the connecting strip, as well as the design of the locking pin, strip groove, and locking groove, the fixing and separation operation of the tooth and the connecting strip is simple, and the damaged tooth can be replaced quickly and conveniently without replacing the entire zipper.

[0017] 2. It avoids the high-cost operation of replacing the entire zipper due to the damage of a single tooth. For zippers installed on complex items, replacing only the tooth greatly reduces the difficulty of repair, reduces the risk of damage to the item itself due to zipper replacement, and saves repair time and costs. Attached Figure Description

[0018] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the toothed body and connecting strip structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the broach body structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the torsion column structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the fixed column structure of this utility model;

[0024] Figure 6 This is a cross-sectional view of the tooth body and connecting strip of this utility model.

[0025] The diagram shows the following labels: 1. Tie tooth body; 11. Slot; 12. Notch; 13. Through hole; 14. Positioning pin; 15. Torsion groove; 2. Connecting strip; 21. Screw hole; 22. Positioning hole; 3. Chain link; 4. Torsion post; 41. Twisting plate; 42. Snap ring; 43. Countersunk groove; 44. Strip groove; 45. Snap groove one; 46. Snap groove two; 5. Fixing post; 51. Screw; 52. Snap pin; 53. Spring. Detailed Implementation

[0026] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0027] Example

[0028] like Figure 1 As shown, the replaceable tooth zipper includes a chain piece 3, a connecting strip 2 disposed on the edge of the chain piece 3, and a tooth body 1 fixed to the connecting strip 2.

[0029] like Figure 2 , Figure 3 As shown, the zipper tooth body 1 is a key component of the zipper, featuring a snap-fit ​​groove 11 that engages with the connecting strip 2 for initial positioning. A notch 12 on the side of the snap-fit ​​groove 11 facilitates operation. A positioning pin 14 is located on the side wall of the snap-fit ​​groove 11 near the notch 12, precisely engaging with the positioning hole 22 on the connecting strip 2 to further secure the connection between the zipper tooth body 1 and the connecting strip 2. The connecting strip 2 is located at the edge of the chain piece 3, featuring a screw hole 21 and a positioning hole 22, which engage with the stud 51 of the fixing post 5 and the positioning pin 14 of the zipper tooth body 1, respectively, to achieve a fixed connection with the zipper tooth body 1.

[0030] The drawbar body 1 is also provided with a through hole 13, and a torsion groove 15 is provided in the through hole 13 for engaging with the torsion post 4. The torsion post 4 is rotatably installed in the through hole 13 of the drawbar body 1, and its side is secured in the torsion groove 15 by a retaining ring 42 to ensure the stability of the torsion post 4 during rotation. A screw plate 41 is provided at the end of the torsion post 4 away from the countersunk groove 43. The screw plate 41 is located at the opening of the through hole 13 for easy operation by the user. The torsion post 4 can be rotated by rotating the screw plate 41.

[0031] like Figure 4 As shown, a groove 43 is provided at one end of the torsion post 4 facing the connecting strip 2. A strip groove 44 parallel to the axial direction of the torsion post 4 is provided on the side wall of the groove 43. A first groove 45 and a second groove 46 distributed along the axial direction of the groove 43 are provided at both ends of the strip groove 44. The first groove 45 is set along the direction of the screw post 51 being screwed open from the screw hole 21, and the second groove 46 is set along the direction of the screw post 51 being screwed tighter from the screw hole 21.

[0032] like Figure 5 As shown, the fixing post 5 is set in the recess 43 of the torsion post 4, and its end is provided with a stud 51, which corresponds to the screw hole 21 on the connecting strip 2. The fixing post 5 is provided with a locking pin 52 on its side, which is locked in the strip groove 44, so that the fixing post 5 can move in the recess 43 along the trajectory of the strip groove 44 as the stud 51 and the screw hole 21 cooperate.

[0033] like Figure 6 As shown, when the locking pin 52 is in the second slot 46, the spring 53 is in a stretched state, which generates a directional pulling force on the fixing post 5, making the locking pin 52 more tightly engaged with the second slot 46, preventing separation during daily use of the zipper, thereby ensuring a firm and stable connection between the zipper tooth body 1 and the connecting strip 2, and guaranteeing normal use of the zipper. When the locking pin 52 is in the first slot 45, the spring 53 is in a compressed state, assisting in pushing the fixing post 5, thereby facilitating the connection between the fixing post 5 and the screw hole 21.

[0034] When installing the pull tooth, rotating the screw plate 41 drives the torsion post 4 to rotate, causing the stud 51 of the fixing post 5 to tighten into the threaded hole 21 on the connecting strip 2. During this process, the spring 53 gradually changes from a compressed state to a stretched state. The elastic force of the spring 53 provides a certain resistance, allowing the user to feel the progress and force of the operation, just like the change in resistance felt when tightening a screw. This provides operational feedback and prevents over-tightening that could damage the components. When replacing the pull tooth by rotating the screw plate 41 in the opposite direction, the spring 53 changes from a stretched state back to a compressed state, again providing resistance and allowing the user to better control the operation.

[0035] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A zipper with replaceable teeth, characterized in that: It includes a chain piece (3), a connecting strip (2) located at the edge of the chain piece (3), and a tooth body (1) fixed to the connecting strip (2); The toothed body (1) is provided with a through hole (13), and a torsion post (4) is rotatably installed in the through hole (13). A groove (43) is opened at one end of the torsion post (4) facing the connecting strip (2), and a fixing post (5) is provided in the groove (43). A stud (51) is provided at the end of the fixing post (5) and corresponds to the screw hole (21) provided on the connecting strip (2). The side wall of the sinking trough (43) is provided with a strip groove (44), and the side of the fixing post (5) is provided with a locking pin (52) which is locked in the strip groove (44). The fixing post (5) moves in the sinking trough (43) along the trajectory of the strip groove (44) as the stud (51) and the screw hole (21) cooperate. When the stud (51) is fully embedded in the screw hole (21), the locking pin (52) moves to the second locking groove (46) at one end of the strip groove (44) which is inclined; when the stud (51) is disengaged from the screw hole (21), the locking pin (52) moves to the first locking groove (45) at the other end of the strip groove (44).

2. The zipper with replaceable teeth according to claim 1, characterized in that: The spring (53) at the end of the fixed post (5) away from the stud (51) is connected to the inner wall of the torsion post (4), and the spring (53) is in a compressed state when the locking pin (52) is in the first slot (45), and the spring (53) is in a stretched state when the locking pin (52) is in the second slot (46).

3. The zipper with replaceable teeth according to claim 1, characterized in that: The axial directions of the strip groove (44) and the torsion column (4) are parallel to each other, and the first slot (45) and the second slot (46) are both distributed along the axial direction of the sink groove (43).

4. The zipper with replaceable teeth according to claim 3, characterized in that: The first slot (45) is set along the direction in which the stud (51) and the screw hole (21) are unscrewed, and the second slot (46) is set along the direction in which the stud (51) and the screw hole (21) are tightened.

5. The zipper with replaceable teeth according to any one of claims 1 to 4, characterized in that: The torsion post (4) is provided with a twisting piece (41) at the end away from the sinker (43), and the twisting piece (41) is located at the opening of the through hole (13); a torsion groove (15) is provided in the through hole (13), and the side of the torsion post (4) is locked in the torsion groove (15) by a retaining ring (42).

6. The zipper with replaceable teeth according to any one of claims 1 to 4, characterized in that: The tooth body (1) is provided with a snap groove (11) that engages with the connecting strip (2), and the snap groove (11) has a notch (12) on its side; a positioning pin (14) is provided on the side wall of the snap groove (11) near the notch (12), and a positioning hole (22) is provided on the connecting strip (2) that engages with the positioning pin (14).

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