Quick-opening zipper

Abstract

The utility model relates to the technical field of zippers, and discloses a quick-opening zipper which comprises a left zipper tooth and a right zipper tooth, zipper heads are arranged at the two ends of the left zipper tooth and the two ends of the right zipper tooth in a connected mode, a quick-release zipper tooth is arranged at the middle end of the right zipper tooth in a connected mode, the quick-release zipper tooth comprises two sets of teeth, inclined faces are arranged on the sides, close to each other, of the two sets of teeth, and the two sets of teeth are connected through the inclined faces. An embedding groove is formed in the surface of the inclined face, a connecting groove is formed in one side of each tooth, the connecting grooves on the sides, away from each other, of the teeth are embedded with the adjacent left zipper teeth, the left zipper teeth are divided into multiple sets, one set of left zipper teeth is located between the two teeth, one end of the left zipper teeth located between the two teeth is embedded with the corresponding embedding groove, and the other end of the left zipper teeth located between the two teeth is embedded with the corresponding embedding groove. The left zipper teeth are connected with the right zipper teeth in a meshed mode. According to the utility model, the quick-opening effect can be effectively achieved, and meanwhile, the effect of stable connection and use is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of zippers, in particular to a quick-opening zipper. Background Art

[0002] A zipper is a connector that relies on continuously arranged chain teeth to connect or separate objects. It is now widely used in clothing, bags, tents, etc. A zipper consists of chain teeth, a pull head, limit codes (front codes and rear codes) or locking parts, among which the chain teeth are the key part, which directly determines the side pull strength of the zipper.

[0003] Publication No. "CN 210929918 U" discloses "a quick-open zipper, comprising two sets of zipper chains interlocked with each other, characterized in that: the zipper chain comprises a quick-open section, a zipper section and a transition section arranged between the quick-open section and the zipper section, the quick-open section comprises a plurality of quick-open zipper blocks arranged in sequence, one end of the quick-open zipper block is triangular in shape, and adjacent quick-open zipper blocks have a certain spacing. The quick-open zipper, by setting one end of the quick-open zipper block to be triangular in shape and adjacent quick-open zipper blocks to have a certain spacing, can ensure that the zipper is quickly opened under the tearing action of an external force in the pulled-up and closed state, thereby achieving the purpose of quick zipper pulling". Although the quick-opening effect is achieved, since the quick-opening section is formed by directly connecting a plurality of triangular zipper sections and there is no rigid connection, it will open automatically during daily use, reducing the stability of the zipper. Utility Model Content

[0004] The purpose of the utility model is to provide a quick-open zipper to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solution: comprising a left sprocket and a right sprocket, both ends of the left sprocket and the right sprocket are connected with chain heads, and the middle end of the right sprocket is connected with a quick-release sprocket.

[0006] Preferably, the quick-release chain teeth include teeth, the teeth are in two groups, and a slope is provided on the side close to each other, an engaging groove is provided on the surface of the slope, and a connecting groove is provided on one side of the teeth.

[0007] Preferably, the connecting groove on the side where the teeth are away from each other is engaged with the adjacent left chain tooth.

[0008] Preferably, there are multiple groups of left sprockets, one of which is located between two teeth, and one end of the left sprocket located between the two teeth is engaged with the corresponding engagement groove.

[0009] Preferably, the left sprocket is meshingly connected with the right sprocket.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model utilizes the chain head to pull up the left chain teeth and the right chain teeth, wherein the left chain teeth located at the middle end are clamped between the quick-release chain teeth and cooperate with the right chain teeth to pull up the zipper as a whole. When the zipper needs to be opened, the quick-release chain teeth and the left chain teeth are pulled outward, and only a lateral limiting effect is exerted on the two sides of the left chain teeth. When the zipper is pulled outward, the connection with the left chain teeth can be directly disconnected, and then the left chain teeth and the right chain teeth can be directly pulled apart, so that the quick-opening effect can be effectively achieved, and at the same time, the stable use effect of the connection is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a quick-open zipper of the utility model;

[0013] Figure 2 for Figure 1 The enlarged structural diagram of part A in the middle;

[0014] Figure 3 The utility model is a schematic structural diagram of a quick-release chain tooth in a quick-open zipper.

[0015] In the figure: 11, left chain tooth; 12, right chain tooth; 13, chain head; 24, quick-release chain tooth; 241, tooth; 242, inclined surface; 243, fitting groove; 244, connecting groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-3 The utility model provides a technical solution: comprising a left sprocket 11 and a right sprocket 12, both ends of the left sprocket 11 and the right sprocket 12 are connected with a chain head 13, and the middle end of the right sprocket 12 is connected with a quick-release sprocket 24.

[0018] The quick-release sprocket 24 includes two groups of teeth 241, and a slope 242 is provided on the side close to each other. An engaging groove 243 is provided on the surface of the slope 242. A connecting groove 244 is provided on one side of the teeth 241. The quick-release sprocket 24 is aligned with the right sprocket 12 and meshed with the left sprocket 11.

[0019] The connecting groove 244 on the side away from the teeth 241 is engaged with the adjacent left chain tooth 11. The left chain tooth 11 has multiple groups, one of which is located between two teeth 241, and one end of the left chain tooth 11 located between the two teeth 241 is engaged with the corresponding engaging groove 243 to ensure the stable connection with the left chain tooth 11, thereby ensuring the stability of the connection between the left chain tooth 11 and the right chain tooth 12 and the quick-release chain tooth 24.

[0020] The left sprocket 11 is meshed and connected with the right sprocket 12 .

[0021] Working principle: When the utility model is in use, the chain head is used to pull up the left sprocket 11 and the right sprocket 12, wherein the left sprocket 11 at the middle end is stuck between the quick-release sprocket 24, and cooperates with the right sprocket 12 to pull up the zipper as a whole. When it needs to be opened, the quick-release sprocket 24 and the left sprocket 11 are pulled outward, and the engaging groove 243 has only a lateral limiting effect on both sides of the left sprocket 11. When it is pulled outward, it can be directly disconnected from the left sprocket 11, and then the left sprocket 11 and the right sprocket 12 can be directly pulled apart to complete the quick opening.

[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0023] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quick-open zipper, comprising a left sprocket (11) and a right sprocket (12), characterized in that: Both ends of the left sprocket (11) and the right sprocket (12) are connected with chain heads (13), and the middle end of the right sprocket (12) is connected with a quick-release sprocket (24); The quick-release chain teeth (24) comprise teeth (241), the teeth (241) have two groups, and a slope (242) is provided on one side close to each other, a fitting groove (243) is provided on the surface of the slope (242), and a connecting groove (244) is provided on one side of the teeth (241).

2. A quick-open zipper according to claim 1, characterized in that: The connecting groove (244) on the side of the teeth (241) that is away from each other is engaged with the adjacent left chain tooth (11).

3. A quick-open zipper according to claim 2, characterized in that: The left sprocket (11) has multiple groups, one of which is located between two teeth (241), and one end of the left sprocket (11) located between the two teeth (241) is engaged with the corresponding engagement groove (243).

4. A quick-open zipper according to claim 1, characterized in that: The left sprocket (11) is meshedly connected with the right sprocket (12).

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