CN220255863U

CN220255863U - Combined pull head

Info

Publication number: CN220255863U
Application number: CN202321987521.1U
Authority: CN
Inventors: 卓艳伟; 郑志恒; 陈丽英; 陈程; 郑志华; 郑安安; 宋道斌
Original assignee: Individual
Current assignee: Zhejiang Hengwei Zipper Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2023-12-29
Anticipated expiration: 2033-07-26

Abstract

The utility model provides a combined pull head, and belongs to the technical field of zippers. It has solved the problem that prior art exists stability poor. The combined type pull head comprises a meshing part for meshing with a chain tooth and a retaining ring fixedly connected to the upper part of the meshing part, and is characterized in that the retaining ring is arc-shaped, the inner end of the retaining ring is fixedly connected to the meshing part, a positioning gap is formed between the outer end of the retaining ring and the meshing part, the combined type pull head further comprises a positioning block, a flaky positioning elastic piece is arranged on the upper part of the positioning block, the positioning block is embedded in the positioning gap, the lower end of the positioning block is in surface contact with the meshing part, and the positioning elastic piece on the positioning block is propped against the outer end of the retaining ring and can enable the positioning block to be locked and connected to the positioning gap. The combined type pull head has high stability.

Description

Combined pull head

Technical Field

The utility model belongs to the technical field of zippers, and relates to a combined type pull head.

Background

Zippers (zippers) are connectors that rely on a continuous array of teeth to join or separate articles, and are now used in a wide variety of garments, bags, tents, and the like.

The zipper consists of a zipper tooth, a pull head, an upper stop (a front code and a rear code) or a locking piece and the like.

The fastener element determines the lateral pull strength of the slide fastener. The common zipper is provided with two chain belts, each chain belt is provided with a row of zipper teeth, and the two rows of zipper teeth are mutually staggered. The pull head clamps the two side chain teeth, and the two side chain teeth can be meshed with or separated from each other by sliding the pull tab. It can be seen that the slider is a key part, and the left and right adjacent rows of teeth are in a meshed or separated state by the movement of the slider.

Existing sliders generally include an engagement portion for engaging with a fastener element and a clasp attached to an upper portion of the engagement portion for articulating the pull tab.

However, the clearance between the snap ring and the engagement portion in the existing slider is relatively small, which results in complicated installation of the pull tab, and the pull tab cannot be replaced alone after being damaged, which results in relatively high use cost.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provide a combined type slider which is convenient to assemble and disassemble and high in stability.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a combination formula pull head, includes the meshing portion that is used for with the tooth meshing and links firmly the buckle in meshing portion upper portion department, its characterized in that, the buckle is the arc, and buckle inner fixed connection is in meshing portion department, has the location clearance between buckle outer end and the meshing portion, still includes a locating piece, locating piece upper portion has and is flaky location shell fragment, and above-mentioned locating piece inlays in location clearance department and locating piece lower extreme and meshing face contact, and the location shell fragment on the locating piece supports and leans on buckle outer end and enable locating piece locking connection in above-mentioned location clearance department.

The combined type pull head creatively fixedly connects the inner end of the retaining ring with the meshing part, and a positioning gap with larger comparison size is reserved between the outer end of the retaining ring and the meshing part. Of course, the size of the positioning gap is larger than the thickness of the pull tab in the zipper, and the structure can enable the connecting end of the pull tab to conveniently penetrate into the positioning gap and enable the connecting end of the pull tab to be stably and movably connected with the retaining ring.

After the connecting end of the pull tab is connected with the snap ring, the positioning block is arranged in the positioning gap. Because the positioning gap is blocked by the positioning block, the structure can ensure that the pull tab is stably connected with the whole pull head, and the pull tab cannot fall off from the pull head.

Meanwhile, the positioning block is provided with the elastic positioning spring piece, so that the positioning block can be stably connected with the positioning gap under the elastic action of the positioning spring piece, and the connection stability of the positioning block is further improved.

In the combined type slider, the part, opposite to the outer end of the retaining ring, of the upper part of the meshing part is a concave positioning part, and the positioning block is embedded in the positioning part and is in surface contact connection with the positioning part.

The positioning part is used for stably positioning the positioning block, so that the displacement of the positioning block is avoided.

In the above combined slider, the positioning portion extends from the end portion of the engagement portion to the middle portion of the engagement portion, a concave positioning notch is formed at the outer end of the positioning portion, and the positioning block is provided with a positioning protruding head matched with the positioning notch and is embedded in the positioning notch.

The positioning notch is matched and connected with the positioning convex head, so that the connection stability of the positioning block and the meshing part is further improved.

In the above combined slider, the inner end of the positioning spring is connected with the positioning block, the outer end of the positioning spring has a concave locking notch, the outer end of the retaining ring has a locking projection matched with the locking notch, the locking projection is embedded in the locking notch and the positioning spring is in a compressed state, and the positioning block has a tendency to move towards the inside of the positioning part under the action of the elastic force of the positioning spring.

The structure can improve the connection stability of the positioning spring plate and the retaining ring.

In the above-mentioned combination formula pull head, the locating piece is including being platelike plate body one, plate body two and being rectangular form location shell fragment, plate body one and plate body two parallel arrangement, the inner of above-mentioned location shell fragment is connected between plate body one and plate body two's inner, location shell fragment upper portion, plate body one upper portion and plate body two upper portions parallel and level, location shell fragment outer end is located between plate body one outer end and the plate body outer end.

Therefore, the whole connecting block structure can be simplified, and the positioning spring piece is ensured to have enough elasticity.

In the above combined slider, the first inner end of the plate body is connected to the middle portion thereof, the second inner end of the plate body is connected to the middle portion thereof, and the inner end of the positioning spring piece is connected to the middle portion thereof.

In the above-described combination slider, the lead-in portion is chamfered.

In the above combined slider, the lead-in portion is rounded.

The guiding part can enable the whole connecting block to be smoothly embedded into a positioning gap between the outer end of the retaining ring and the meshing part.

In the above combined type slider, the number of the positioning protruding heads is two, one positioning protruding head is located at one outer end of the plate body, the other positioning protruding head is located at the outer end of the plate body, and the positioning portion is provided with positioning notches corresponding to the positioning protruding heads one by one.

The positioning stability of the positioning block can be effectively improved by the positioning convex heads and the positioning concave grooves which are in one-to-one correspondence.

In the above combined slider, the first plate body, the second plate body and the positioning spring sheet are of an integrated structure and made of plastic materials.

Therefore, the structural compactness of the positioning block can be properly improved.

Compared with the prior art, the combined type pull head has the advantages that the pull tab can be stably limited at the snap ring due to the fact that the positioning block is arranged at the positioning gap, the connection stability of the combined type pull head is effectively improved, and the combined type pull head is convenient to assemble.

Because the locating block is made of plastic material, the locating block is damaged when the pull tab needs to be replaced, and the use cost of the zipper is reduced. Of course, the new positioning block is reloaded after the new pull tab is replaced.

Drawings

Fig. 1 is a schematic top view of the combined slider.

Fig. 2 is a schematic diagram of a front view structure of the combined slider.

Fig. 3 is a schematic structural view of a connecting part of the positioning block in the combined type slider.

Fig. 4 is a schematic top view of a positioning block in the combined slider.

Fig. 5 is a schematic perspective view of a positioning block in the combined slider.

In the figure, 1, a meshing part; 1a, a positioning part; 1a1, positioning notches; 2. a clasp ring; 2a, locking the raised head; 3. a positioning block; 3a, positioning spring plates; 3a1, locking notch; 3b, a first plate body; 3c, a second plate body; 4. positioning the raised head; 5. an introduction unit; 6. and (5) pulling the tab.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It is noted that when an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "or/and" as used herein includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 and 2, and fig. 3 and 4 and 5, the combined type slider comprises a meshing portion 1 for meshing with a fastener element and a retaining ring 2 fixedly connected to the upper portion of the meshing portion 1, wherein the retaining ring 2 is arc-shaped, the inner end of the retaining ring 2 is fixedly connected to the meshing portion 1, a positioning gap is formed between the outer end of the retaining ring 2 and the meshing portion 1, the combined type slider further comprises a positioning block 3, a sheet-shaped positioning elastic piece 3a is arranged on the upper portion of the positioning block 3, the positioning block 3 is embedded in the positioning gap, the lower end of the positioning block 3 is in surface contact with the meshing portion 1, and the positioning elastic piece 3a on the positioning block 3 abuts against the outer end of the retaining ring 2 and enables the positioning block 3 to be in locking connection with the positioning gap.

The upper part of the meshing part 1 is provided with a concave positioning part 1a opposite to the outer end of the retaining ring 2, and the positioning block 3 is embedded in the positioning part 1a and is in surface contact connection with the positioning part 1 a.

The positioning part 1a extends from the end part of the meshing part 1 to the middle part of the meshing part 1, the outer end of the positioning part 1a is provided with a concave positioning notch 1a1, the positioning block 3 is provided with a positioning convex head 4 matched with the positioning notch 1a1, and the positioning convex head 4 is embedded in the positioning notch 1a1.

The inner end of the positioning spring plate 3a is connected with the positioning block 3, the outer end of the positioning spring plate 3a is provided with a concave locking notch 3a1, the outer end of the retaining ring 2 is provided with a locking convex head 2a matched with the locking notch 3a1, the locking convex head 2a is embedded in the locking notch 3a1 and the positioning spring plate 3a is in a compressed state, and the positioning block 3 has a tendency to move towards the inside of the positioning part 1a under the action of the elastic force of the positioning spring plate 3 a.

The positioning block 3 comprises a plate-shaped first plate body 3b, a plate body second plate body 3c and a strip-shaped positioning elastic piece 3a, wherein the plate body first plate body 3b and the plate body second plate body 3c are arranged in parallel, the inner end of the positioning elastic piece 3a is connected between the inner ends of the plate body first plate body 3b and the plate body second plate body 3c, the upper parts of the positioning elastic piece 3a, the upper part of the plate body first plate body 3b and the upper part of the plate body second plate body 3c are flush, and the outer end of the positioning elastic piece 3a is positioned between the outer end of the plate body first plate body 3b and the outer end of the plate body second plate body 3 c.

The inner end of the first plate body 3b is connected to the middle part of the first plate body, the inner end of the second plate body 3c is connected to the middle part of the first plate body, and the inner end of the positioning spring piece 3a is connected to the middle part of the positioning spring piece.

The lead-in part 5 is chamfered. According to the actual situation, it is also possible that the lead-in 5 is rounded.

The number of the positioning raised heads 4 is two, one positioning raised head 4 is positioned at the outer end of the first plate body 3b, the other positioning raised head 4 is positioned at the outer end of the second plate body 3c, and the positioning part 1a is provided with positioning notches 1a1 corresponding to the positioning raised heads 4 one by one.

The first plate body 3b, the second plate body 3c and the positioning spring plate 3a are of an integrated structure and made of plastic materials.

The technical features of the above-described embodiments may be combined in any manner, and for brevity, all of the possible combinations of the technical features of the above-described embodiments are not described, however, all of the combinations of the technical features should be considered as being within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

It will be appreciated by persons skilled in the art that the above embodiments have been provided for the purpose of illustrating the utility model and are not to be construed as limiting the utility model, and that suitable modifications and variations of the above embodiments are within the scope of the utility model as claimed.

Claims

1. The utility model provides a combination formula pull head, includes the meshing portion that is used for with the tooth meshing and links firmly the buckle in meshing portion upper portion department, its characterized in that, the buckle is the arc, and buckle inner fixed connection is in meshing portion department, has the location clearance between buckle outer end and the meshing portion, still includes a locating piece, locating piece upper portion has and is flaky location shell fragment, and above-mentioned locating piece inlays in location clearance department and locating piece lower extreme and meshing face contact, and the location shell fragment on the locating piece supports and leans on buckle outer end and enable locating piece locking connection in above-mentioned location clearance department.

2. The combined type slider according to claim 1, wherein the portion of the upper portion of the engagement portion facing the outer end of the retaining ring is a recessed positioning portion, and the positioning block is embedded in the positioning portion and is in surface contact connection with the positioning portion.

3. The combination type slider as claimed in claim 2, wherein the positioning portion extends from an end portion of the engagement portion to a middle portion of the engagement portion, a concave positioning recess is formed at an outer end of the positioning portion, and the positioning block is provided with a positioning protrusion matched with the positioning recess and embedded in the positioning recess.

4. A combined type slider according to claim 3, wherein the inner end of the positioning spring is connected with the positioning block, the outer end of the positioning spring is provided with a concave locking notch, the outer end of the retaining ring is provided with a locking convex head matched with the locking notch, the locking convex head is embedded in the locking notch and the positioning spring is in a compressed state, and the positioning block has a tendency to move inwards under the action of the elasticity of the positioning spring.

5. The combined type slider according to claim 4, wherein the positioning block comprises a plate-shaped first plate body, a plate-shaped second plate body and a strip-shaped positioning spring piece, the plate-shaped first plate body and the plate-shaped second plate body are arranged in parallel, the inner end of the positioning spring piece is connected between the inner ends of the plate-shaped first plate body and the plate-shaped second plate body, the upper parts of the positioning spring piece, the upper part of the plate-shaped first plate body and the upper part of the plate-shaped second plate body are flush, and the outer end of the positioning spring piece is positioned between the outer end of the plate-shaped first plate body and the outer end of the plate-shaped second plate body.

6. The combination slider of claim 5, wherein the plate body has a smooth transition leading-in portion from one inner end to the middle portion thereof, and from two inner ends to the middle portion thereof, and from the inner end to the middle portion thereof.

7. The combination slider of claim 6, wherein the lead-in portion is a chamfer.

8. The combination slider of claim 6, wherein the lead-in portion is rounded.

9. The combination slider of claim 7, wherein the number of said positioning projections is two, one of said positioning projections is located at an outer end of the plate body, the other positioning projection is located at an outer end of the plate body, and said positioning portion has positioning recesses in one-to-one correspondence with said positioning projections.

10. The combination slider of claim 9, wherein the first plate, the second plate and the positioning spring are of an integral structure and are of a plastic material.