Novel plastic steel square arc tooth zipper

Abstract

The utility model provides a novel plastic steel square arc tooth zipper, and belongs to the technical field of machinery. The problem of poor stability in the prior art is solved. The novel plastic steel square arc tooth zipper comprises two zipper teeth, a zipper head and a zipper pull, concave zipper grooves are formed in the two sides of the zipper head respectively, each zipper groove is connected with one corresponding zipper tooth, the inner end of the zipper pull is movably connected to the upper portion of the zipper head, the novel plastic steel square arc tooth zipper is characterized in that the zipper head comprises a body and a U-shaped connecting buckle, and the U-shaped connecting buckle is connected with the zipper head. The body is in a block shape, the chain grooves are symmetrically distributed in the two sides of the body, the two ends of the U shape of the connecting buckle are a connecting end and a limiting end respectively, and the connecting end is connected to the body in a buckled mode. The novel plastic steel square arc tooth zipper is high in stability.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a novel plastic-steel square arc tooth zipper. Background Art

[0002] The Square Curve Tooth Zipper is a special type of zipper, characterized by square or nearly square teeth with a certain curvature. This design makes the zipper smoother when in use, while also enhancing the durability and aesthetics of the zipper.

[0003] The slider in the existing square-arc tooth zipper is usually an integrated structure, which makes it impossible to replace the pull tab after it is damaged. The slider and the pull tab need to be replaced together, resulting in a relatively high cost of use. Summary of the Invention

[0004] The purpose of the utility model is to provide a novel plastic-steel square-arc tooth zipper with a compact structure and relatively low use cost in view of the above-mentioned problems existing in the prior art.

[0005] The purpose of this utility model can be achieved through the following technical solutions:

[0006] A new type of plastic-steel square arc tooth zipper, including chain teeth, a slider and a pull tab, the number of the above-mentioned chain teeth is two, and there are respectively recessed chain grooves on both sides of the above-mentioned slider, each chain groove is connected to a corresponding chain tooth, and the inner end of the above-mentioned pull tab is movably connected to the upper part of the slider, and is characterized in that the slider includes a main body and a U-shaped connecting buckle, the main body is block-shaped, the above-mentioned chain grooves are symmetrically distributed on both sides of the main body, the U-shaped ends of the connecting buckle are respectively a connecting end and a limiting end, the above-mentioned connecting end is buckled and connected to the main body, when the connecting end is buckled and connected to the main body, the gap size between the above-mentioned limiting end and the upper part of the main body is smaller than the thickness size of the pull tab, the inner end of the above-mentioned pull tab has a penetrating positioning hole, and the above-mentioned connecting buckle is passed through the positioning part of the pull tab.

[0007] In the above-mentioned novel plastic-steel square-arc tooth zipper, a sheet-shaped spacer is provided in the body, and the above-mentioned chain grooves are respectively located at both sides of the spacer.

[0008] In the above-mentioned new plastic-steel square arc tooth zipper, the connecting end includes an insert, a spring and a positioning pin. The upper part of the main body has a through-hole, and the above-mentioned insert is embedded in the insert. The side wall of the insert has an inclined positioning hole 1, and the outer side of the insert has an inclined positioning hole 2. The above-mentioned positioning pin and spring are both located at positioning hole 2. Under the elastic force of the spring, the positioning pin at positioning hole 2 has a tendency to be embedded in positioning hole 1.

[0009] In the above-mentioned novel plastic-steel square-arc tooth zipper, the first positioning hole and the second positioning hole have the same inclination direction and inclination angle.

[0010] In the above-mentioned new plastic-steel square arc tooth zipper, there are two inserts, which are symmetrically arranged on both sides of the spacer. The above-mentioned body has insertion holes corresponding to the inserts one by one. Under the elastic force of the spring, the inserts have a tendency to rest against the side of the spacer and maintain surface contact.

[0011] In the above-mentioned novel plastic-steel square-arc tooth zipper, the connecting buckle is further provided with a protruding retaining edge, and under the elastic force of the spring, the retaining edge has a tendency to abut against the upper part of the body.

[0012] In the above-mentioned novel plastic-steel square-arc tooth zipper, the retaining edge and the connecting buckle are an integrated structure.

[0013] In the above-mentioned novel plastic-steel square-arc tooth zipper, the upper portion of the retaining edge is a transition portion with a smooth transition.

[0014] In the above-mentioned novel plastic-steel square-arc tooth zipper, the transition portion is an inwardly concave rounded corner at the upper portion of the retaining edge.

[0015] In the above-mentioned novel plastic-steel square-arc tooth zipper, the transition portion is a chamfer at the upper portion of the retaining edge.

[0016] Compared with the prior art, the new plastic steel square arc tooth zipper has a detachable connection between the main body and the connecting buckle in the slider. Therefore, the pull tab or the slider can be replaced separately after being damaged, which effectively reduces its use cost.

[0017] At the same time, after the connecting buckle is connected to the main body, the connection does not take up too much space. Therefore, its structure is relatively compact and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural diagram of the new plastic-steel square arc tooth zipper.

[0019] Figure 2 It is a side view structural diagram of the novel plastic-steel square arc tooth zipper.

[0020] Figure 3 This is a schematic diagram of the main structure of the new plastic-steel square arc tooth zipper.

[0021] In the figure, 1, main body; 1a, spacer; 1b, chain slot; 1c, insertion hole; 1c1, positioning hole 1; 2, connecting buckle; 2a, insertion piece; 2a1, positioning hole 2; 2b, retaining edge; 2b1, transition part; 2c, connecting end; 2d, limiting end; 3, pull tab; 3a, positioning hole; 4, spring; 5, positioning pin. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit this invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0025] The novel plastic-steel square arc tooth zipper comprises chain teeth, a slider and a pull tab. There are two chain teeth. Both sides of the slider have recessed chain grooves. Each chain groove is connected to a corresponding chain tooth. The inner end of the pull tab is movably connected to the upper part of the slider.

[0026] There are two chain teeth, which are respectively connected to the chain grooves on both sides of the slider. The pull tab 3 is movably connected to the slider. The pull tab 3 can stably pull the slider so that the slider can move smoothly along the chain teeth.

[0027] like Figure 1 and Figure 2 and Figure 3 As shown, the slider includes a main body 1 and a U-shaped connecting buckle 2, the main body 1 is block-shaped, the chain groove 1b is symmetrically distributed on both sides of the main body 1, the U-shaped ends of the connecting buckle 2 are a connecting end 2c and a limiting end 2d respectively, the connecting end 2c is snap-fitted and connected to the main body 1, when the connecting end 2c is snap-fitted and connected to the main body 1, the gap size between the limiting end 2d and the upper part of the main body 1 is smaller than the thickness size of the pull tab 3, the inner end of the pull tab 3 has a penetrating positioning hole 3a, and the connecting buckle 2 is passed through the positioning part 3a of the pull tab 3.

[0028] The connecting end 2c of the connecting buckle 3 is detachably connected to the body 1. Once the connecting end 2c is connected to the body 1, the retaining end 2d is adjacent to the upper portion of the body 1. At this point, the gap between the retaining end 2d and the upper portion of the body 1 is dimensioned A. The thickness of the pull tab 3 is dimensioned B, where A is less than B. This structure ensures a stable connection of the pull tab 3 to the body 1.

[0029] The main body 1 has a sheet-like spacer 1 a therein, and the chain grooves 1 b are respectively located on both sides of the spacer 1 a.

[0030] The chain slots 1b on both sides of the body 1 can be separated independently by the spacer 1a.

[0031] The connecting end 2c includes an insert 2a, a spring 4 and a positioning pin 5. The upper part of the main body 1 has a through-hole 1c, and the insert 2a is embedded in the insert 1c. The side wall of the insert 2a has an inclined positioning hole 1c1, and the outer side of the insert 1a has an inclined positioning hole 2a1. The positioning pin 5 and the spring 4 are both located at the positioning hole 2a1. Under the elastic force of the spring 4, the positioning pin 5 at the positioning hole 2a1 has a tendency to embed into the positioning hole 1c1.

[0032] After the middle part of the insert 2a is inserted into the insertion hole 1c, the spring 4 and the positioning pin 5 can not only stably abut the insert 2a against the spacer 1a, but also stably connect the connecting end 2c of the connecting buckle 2 to the body 1.

[0033] The positioning hole 1c1 and the positioning hole 2a1 have the same inclination direction and inclination angle.

[0034] Such a structure can ensure that both ends of the positioning pin 5 can be stably embedded in the positioning hole 1c1 and the positioning hole 2a1.

[0035] There are two inserting pieces 1c, which are symmetrically arranged on both sides of the spacer 1a. The above-mentioned main body 1 has an insertion hole 1c corresponding to the inserting piece 2a one by one. Under the elastic force of the spring 4, the inserting piece 1c has a tendency to rest against the side of the spacer 1a and maintain surface contact.

[0036] Two symmetrically arranged inserts 1c are respectively placed against both sides of the spacer 1a.

[0037] The connecting buckle 2 also has a protruding retaining edge 2 b, which has a tendency to rest against the upper portion of the main body 1 under the elastic force of the spring 4 .

[0038] Under the elastic force of the spring 4, the retaining edge 2b abuts against the upper part of the body 1. Such a structure can ensure that the connecting buckle 2 is stably connected to the body 1. Of course, under the action of the spring 4, appropriate buffering can also be achieved to avoid excessive rigid contact between the slider and the chain teeth.

[0039] The retaining edge 2b and the connecting buckle 2 are an integrated structure.

[0040] This can appropriately improve the structural compactness of the connecting buckle 2.

[0041] The upper portion of the retaining edge 2b is a transition portion 2b1 with a smooth transition.

[0042] The transition portion 2b1 is a concave fillet at the upper portion of the retaining edge 2b. According to actual conditions, the transition portion 2b1 can also be a chamfer at the upper portion of the retaining edge 2b.

[0043] The provision of the transition portion 2b1 can ensure the compactness of the structure at the connection between the connecting end 2c and the body 1.

[0044] Since the main body and the connecting buckle in the slider of the novel plastic-steel square-arc zipper are detachably connected, the pull tab or the slider can be replaced separately after being damaged, thereby effectively reducing its use cost.

[0045] At the same time, after the connecting buckle is connected to the main body, the connection does not take up too much space. Therefore, its structure is relatively compact and has high practical value.

[0046] Of course, existing sliders are typically made of one-piece plastic or metal, both of which are relatively low in cost. However, this slider is used on luxury clothing or luggage, and the pull tab is typically made of high-value metal or expensively handmade. This provides a cushioning effect during the pulling process, making it more comfortable to use. Because it is a luxury product, the value of each pull tab is relatively high. If a pull tab is damaged, the connecting buckle can be forcibly disassembled to easily replace the pull tab. Although the positioning pin will break after forced disassembly, replacing the positioning pin and pull tab is still relatively inexpensive compared to replacing the entire slider.

[0047] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. As long as they are within the spirit of the present invention, appropriate changes and modifications to the above embodiments fall within the scope of protection claimed by the present invention.

Claims

1. A new type of plastic steel square arc tooth zipper, comprising chain teeth, a slider and a pull tab, wherein the number of the chain teeth is two, and the slider has concave chain grooves on both sides, each chain groove is connected to a corresponding chain tooth, and the inner end of the pull tab is movably connected to the upper part of the slider, characterized in that: The slider includes a main body and a U-shaped connecting buckle. The main body is block-shaped, and the chain grooves are symmetrically distributed on both sides of the main body. The U-shaped ends of the connecting buckle are respectively a connecting end and a limiting end. The connecting end is buckled and connected to the main body. When the connecting end is buckled and connected to the main body, the gap size between the limiting end and the upper part of the main body is smaller than the thickness size of the pull tab. The inner end of the pull tab has a penetrating positioning hole, and the connecting buckle is passed through the positioning position of the pull tab.

2. The novel plastic-steel square-arc zipper according to claim 1, characterized in that: The main body is provided with a sheet-shaped spacer, and the chain grooves are respectively located at both sides of the spacer.

3. The novel plastic-steel square-arc zipper according to claim 2, characterized in that: The connecting end includes a plug, a spring and a positioning pin. The upper part of the main body has a through-hole, and the above-mentioned plug is embedded in the plug. The side wall of the plug has an inclined positioning hole 1, and the outer side of the plug has an inclined positioning hole 2. The above-mentioned positioning pin and spring are both located at the positioning hole 2. Under the elastic force of the spring, the positioning pin at the positioning hole 2 has a tendency to be embedded in the positioning hole 1.

4. The novel plastic-steel square-arc zipper according to claim 3, characterized in that: The first positioning hole and the second positioning hole have the same inclination direction and inclination angle.

5. The novel plastic-steel square-arc zipper according to claim 4, characterized in that: There are two inserts, which are symmetrically arranged on both sides of the spacer. The body has insertion holes corresponding to the inserts one by one. Under the elastic force of the spring, the inserts tend to lean against the side of the spacer and maintain surface contact.

6. The novel plastic-steel square-arc zipper according to claim 5, characterized in that: The connecting buckle is also provided with a protruding retaining edge, which has a tendency to abut against the upper part of the main body under the elastic force of the spring.

7. The novel plastic-steel square-arc zipper according to claim 6, characterized in that: The retaining edge and the connecting buckle are an integrated structure.

8. The novel plastic-steel square-arc zipper according to claim 7, characterized in that: The upper portion of the baffle is a transition portion with a smooth transition.

9. The novel plastic-steel square-arc zipper according to claim 8, characterized in that: The transition portion is a concave rounded corner at the upper portion of the baffle.

10. The novel plastic-steel square-arc zipper according to claim 8, characterized in that: The transition portion is a chamfer at the upper portion of the retaining edge.

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