Zipper retainer based on zipper tooth fixation

Abstract

The utility model discloses a zipper retainer based on zipper tooth fixation, relates to the technical field of zipper accessories, and aims to solve the problems of complicated operation and the like. The zipper retainer consists of a left side part and a right side part; clamping grooves clamped outside the zipper belt are formed in the left side part and the right side part; a middle cavity for containing zipper teeth is further formed in the clamping groove in the left side portion, and the middle cavity is located in the middle of the clamping groove and extends in the width direction from a groove opening of the clamping groove. Side cavities are further formed in the clamping groove of the right side part and located on the two sides of the clamping groove in the length direction to contain the zipper teeth on the two sides of the right side part; and the groove walls of the clamping grooves are tightly pressed and fixed on the corresponding chain belts during installation. Installation can be completed only by aligning the clamping groove with the zipper belt to be clamped, the installation process is simplified, the requirement for the technical proficiency of operators is lowered, the zipper teeth are limited and fixed by the middle cavity and the side cavities, the retainer is effectively prevented from sliding or falling off on the zipper belt, and the fixing firmness of the retainer is improved; and moreover, the zipper belt and the zipper teeth are not damaged, and the overall strength and attractiveness of the zipper are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to zip fastener accessory technical field, especially a kind of zip fastener stop based on fixed zipper tooth. BACKGROUND

[0002] In the field of clothing, luggage, outdoor equipment, as commonly used opening and closing components, its stop (including upper stop and lower stop) plays a key role in limiting slider movement range and preventing zip fastener from separating. With the development of product function diversification, in special scenarios such as sleeping bag segmented opening and closing, tent multi-directional zip fastener, it is often necessary to temporarily or permanently add stop to the middle position of zip fastener to realize the function of slider segmented locking and flexible control of opening and closing range.

[0003] In the prior art, when adding stop to the middle position of zip fastener, the method of removing the zipper tooth at the target position and then installing the stop is generally used. However, this technical solution has significant defects: on the one hand, the size of the zipper tooth is small, the width of the conventional metal zipper tooth is only 1-3mm, and the removal operation needs to use fine tools such as tweezers and needle-nose pliers, which requires high technical proficiency and operation precision of the operator, and any slight carelessness will cause the zipper tooth to deform and the fiber of the zipper tape to break, affecting the overall strength and appearance of the zip fastener, and since the zipper tape is damaged, even after installing the stop, there is still a risk of the stop loosening or falling off; on the other hand, the installation of the stop requires positioning with certain accuracy, which not only needs to ensure that the cooperation gap with the zipper tooth meets the tolerance requirements, but also needs to avoid the slider from being jammed due to deviation, so the installation efficiency is low and the yield is difficult to guarantee. SUMMARY

[0004] The utility model aims to overcome the defects of the prior art, and provides a zip fastener stop based on fixed zipper tooth to overcome the problems of complex operation, damaged zipper tape and installation precision dependent on manual operation in the prior art.

[0005] The technical solution of the utility model is that the zip fastener comprises a zipper tape and zipper teeth arranged along the length direction of the zipper tape, the zip fastener stop is composed of left and right side parts in the width direction, the left and right side parts are integrally formed, the left and right side parts correspond to the left and right side zipper tapes at their installation positions respectively, and the left and right side parts are both provided with clamping grooves clamped outside the zipper tape; the clamping groove of the left side part is further provided with a middle cavity for accommodating the zipper tooth, the middle cavity is located at the middle position of the clamping groove and extends in the width direction from the groove opening of the clamping groove; the clamping groove of the right side part is further provided with a side cavity, the side cavity is located at both sides of the clamping groove in the length direction to accommodate the zipper teeth on both sides of the right side part; and the groove wall of the clamping groove is tightly pressed and fixed on the corresponding zipper tape during installation.

[0006] With the technical scheme, the structure design does not need to pull out the chain tooth as in the prior art, but only needs to align the clamping groove with the chain belt to be clamped to complete the installation, simplifies the installation process, reduces the requirement for the technical proficiency of the operator, and improves the production efficiency; meanwhile, the middle cavity for accommodating the chain tooth is arranged in the left side clamping groove, and the side cavity is arranged in the right side clamping groove, and the chain tooth at the corresponding position is accommodated, so that the stopper, the chain tooth and the chain belt form a close and stable cooperation relationship; the chain tooth is limited and fixed by the middle cavity and the side cavity, effectively preventing the stopper from sliding or falling off on the chain belt, compared with the problem that the stopper is easy to loosen after being installed after the chain tooth is pulled out in the prior art, the fixing firmness of the stopper is improved; and the chain belt and the chain tooth are not damaged, the overall strength and the aesthetic degree of the zipper are ensured, and the product reliability and the service life are improved; in addition, the clamping groove wall is tightly pressed and fixed on the chain belt, the connection stability of the stopper and the chain belt is provided, the pulling force in different use scenarios can be adapted, and the effective play of the stop function is ensured.

[0007] In a possible design, the clamping groove wall in contact with the chain belt is provided with a friction pattern.

[0008] With the above design, by increasing the friction between the clamping groove and the chain belt, the fixing effect of the stopper and the chain belt is further enhanced, even in the case of frequent opening and closing of the zipper, being pulled by a large external force and the like, the stopper is not easy to displace or fall off, and the stability and reliability of the stopper after installation are further improved; meanwhile, the setting of the friction pattern can also compensate for the problem of poor fixing caused by the material and thickness difference of the chain belt to some extent, the adaptability of the stopper to different types of zippers is enhanced, and the application range of the product is widened. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 FIG. 1 is a structural schematic view of the stopper of the utility model;

[0010] Figure 2 FIG. 2 is a sectional view of the stopper of the utility model;

[0011] Figure 3 FIG. 3 is a structural schematic view of the stopper after installation of the utility model;

[0012] Figure 4 FIG. 4 is a sectional view of the stopper after installation of the utility model;

[0013] Figure 5 FIG. 5 is a structural schematic view of the stopper before installation of the utility model;

[0014] In the drawings, 1 is a chain belt, 11 is a left chain belt, 12 is a right chain belt, 21 is a left chain tooth, 22 is a right chain tooth, 2 is a chain tooth, 3 is a left side, 31 is a clamping groove, 311 is a friction pattern, 32 is a middle cavity, 4 is a right side, and 41 is a side cavity. DETAILED DESCRIPTION

[0015] As shown in Figures 1 to 5 A zipper stop based on the fixed zipper is shown, the zipper includes a chain 1 and a chain 2 arranged along the length direction of the chain 1, the chain 1 is actually divided into left chain 11 and right chain 12, and the chain 2 is actually divided into left chain 21 and right chain 22. In material selection, the zipper stop is preferably made of high-strength and ductile metal material, which has good wear resistance and rigidity, and can realize close cooperation with the chain 1 and the chain 2 through elastic deformation of itself while ensuring the structural strength of the stopper, so as to be suitable for the scene of adding a stopper in the middle position of the zipper.

[0016] The stopper is composed of a left side 3 and a right side 4, which are made by one-piece forming process to ensure the structural strength. The left side 3 and the right side 4 correspond to the left chain 11 and the right chain 12 of the zipper respectively, and are provided with clamping grooves 31 for clamping the chain 1.

[0017] The clamping groove 31 of the left side 3 is provided with a middle cavity 32 for accommodating a left chain 21 at the target installation position. The middle cavity 32 is located at the middle position of the clamping groove 31 and extends in the width direction, ensuring that the chain 2 can be completely embedded from the slot opening of the clamping groove 31. The clamping groove 31 of the right side 4 is provided with a side cavity 41, and the side cavity 41 is located at both ends of the clamping groove 31 in the length direction, that is, the two side cavities 41 are used to accommodate two right chain 22 respectively, ensuring that the stopper will not be offset due to the deviation of the distance between the chain 2 during installation.

[0018] In the specific installation process, first, the left side 3 and the right side 4 of the zipper stop are aligned with the left and right side chains 1 at the corresponding positions of the zipper. Since the clamping groove 31 of the left side 3 is provided with a middle cavity 32, and the clamping groove 31 of the right side 4 is provided with a side cavity 41, during installation, the left side chain 1 together with a left chain 21 on it is embedded into the clamping groove 31 of the left side 3, so that the left chain 21 is clamped into the middle cavity 32, and the right side chain 1 and its chain 2 are embedded into the clamping groove 31 of the right side 4, and the two right chains 22 enter the side cavities 41 respectively. Then, by using the pressing method of the tool clamp, the groove wall of the clamping groove 31 is tightly pressed on the chain 1 until the groove wall of the clamping groove 31 is completely matched with the chain 1, and through the elastic pre-tightening structure of the clamping groove 31, the firm fixation of the stopper with the chain 1 and the chain 2 is realized. In this process, without the operation of pulling out the chain 2, only simple clamping and pressing is needed, which reduces the installation difficulty.

[0019] In addition, when the zipper stopper is installed on the chain tape 1, the left chain teeth 21 are only accommodated in the middle cavity 32 of the left side 3 clamping groove 31, while the corresponding right chain teeth 22 are fixed by the side cavity 41 of the right side 4 clamping groove 31, and the two sides of the chain teeth 2 lack direct chain engagement constraints inside the stopper. Under the action of the lateral force generated by the clamping groove 31 groove wall pressing the chain tape 1, the left chain teeth 21 and the right chain teeth 22 will deviate from the original central position in the width direction and produce a slight displacement outward. The offset amount is usually controlled within the range of 0.1-0.3mm, which not only ensures that the chain teeth 2 and the inner wall of the clamping groove 31 form effective limiting, but also avoids excessive extrusion leading to deformation of the chain teeth 2. In this process, the flexible chain tape 1 can adaptively adjust by twisting outward by virtue of its own elasticity. The twisting deformation of the chain tape 1 does not cause damage to the structure of the chain tape 1.

[0020] In actual use, when the puller slides to the stopper position, the stopper limits the movement range of the puller by virtue of its close fit with the chain tape 1 and the chain teeth 2, and realizes the stop function. Because the clamping groove 31 is closely attached to the chain tape 1, and the chain teeth 2 are effectively limited by the middle cavity 32 and the side cavity 41, even if the zipper is subjected to a large transverse or longitudinal tension during use, the stopper will not easily loosen or fall off.

[0021] To further improve the anti-skid performance, sawtooth or grid-shaped protrusions such as friction lines 311 can be provided on the groove wall surface of the clamping groove 31 to increase the friction force with the chain tape 1. The friction lines 311 can be formed by mold forming or mechanical processing. Preferably, the friction lines 311 are designed to be sawtooth or grid-shaped, which can effectively increase the friction force between the clamping groove 31 and the chain tape 1 without damaging the chain tape 1. When the stopper is installed on the chain tape 1, the friction lines 311 are embedded in the surface of the chain tape 1, further enhancing the connection stability between the two. Even in the face of different materials such as nylon and polyester, and different thicknesses of the chain tape 1, the stopper can maintain good fixing effect, effectively improving the versatility and practicality of the product.

Claims

1. A zipper stop based on tooth fixing, the zipper including a chain strap (1) and teeth (2) arranged along the length direction of the chain strap (1), characterized in that: The zipper stop consists of a left side part (3) and a right side part (4) in the width direction. The left side part (3) and the right side part (4) are integrally formed. The left side part (3) and the right side part (4) correspond to the left and right side chains (1) at their respective installation positions. The left side part (3) and the right side part (4) are both provided with clamping grooves (31) that clamp the chain (1) outside. The clamping groove (31) of the left side part (3) is also provided with a central cavity (32) for the chain teeth (2) to be accommodated. The central cavity (32) is located in the middle of the clamping groove (31) and extends from the opening of the clamping groove (31) in the width direction. The clamping groove (31) of the right side part (4) is also provided with a side cavity (41). The side cavity (41) is located on both sides of the clamping groove (31) in the length direction to accommodate the chain teeth (2) on both sides of the right side part (4). The groove wall of the clamping groove (31) is pressed and fixed on the corresponding chain (1) during installation.

2. The zipper stop based on tooth fixing according to claim 1, characterized in that: The groove (31) that contacts the chain (1) has friction texture (311) on its groove wall.

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