CN210120928U - Open end zipper and square bolt thereof - Google Patents

Abstract

The utility model discloses a separating zipper and square bolt thereof, the both sides of square bolt all are provided with the slot, the inside of slot is provided with the locating part. When the chain belt fixing device is used, one chain belt is inserted into one of the slots and fixed in the slot, the tail end chain teeth of the chain belt are directly abutted against the limiting parts in the slot when the chain belt is inserted, and then the chain belt is fixed in the slot. When another chain belt is inserted into another slot, the chain teeth at the tail end of the chain belt are abutted to the limiting parts in the slot, so that the lengths of the two chain belts extending into the slot are equal, the tightness of the two chains before pulling is same, and the blockage and unsmooth condition during pulling is avoided. In addition, set up the locating part in slot inside, strengthened the intensity of square bolt greatly, made it non-deformable when carrying out the punching press, and then avoided the square bolt after the deformation to appear the plug not in order or the condition of card pause when using.

Description

Open end zipper and square bolt thereof

Technical Field

The utility model relates to the technical field of daily necessities, more specifically say, relate to a split zipper and square bolt thereof.

Background

The split zipper means that the tail end of the zipper can be separated, and is widely applied to the fields of clothes, packaging and the like. The open-end zipper comprises two chain belts, a pull head and a square inserted pin. The chain belt is provided with chain teeth, the square inserted pin is fixedly connected with the tail end of one chain, the square inserted pin is provided with a slot 01, and the tail end chain teeth of the other chain can be inserted into the slot 01 so as to enable the tail end chain teeth of the two chain belts to be matched.

The square bolts on the market at present mainly comprise injection molding square bolts and metal square bolts, wherein the existing metal square bolts are firstly formed into blanks through die-casting, and are subjected to processes such as polishing, electroplating and the like, and then the square bolts are inserted through equipment and fixed on a treated chain belt, so that the square bolts can be normally used. So set up, lead to producing some unstable factors when square bolt and chain belt alternate and fix easily, for example in the process that the chain belt was worn to the square bolt, the terminal sprocket of chain belt inserts in the square bolt slot 01 elasticity can not keep unanimous completely, and then leads to the zip fastener when using because of controlling the sprocket asymmetry, the pull head card when playing the pulling and hang down and not smooth problem. In addition, after the square bolt is threaded, equipment punching is needed to fix the square bolt on a chain belt of the zipper, and due to the fact that the slot 01 exists in the square bolt, the problem of deformation can be caused in the punching process, and the problem of unsmooth or unsmooth plugging of the bolt can occur when the deformed square bolt is used.

In summary, how to effectively solve the problem of stumbling and unsmooth zipper pulling is a problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the first objective of the present invention is to provide a square pin, the structural design of which can effectively solve the problem of unsmooth locking and unsmooth pulling of the zipper, and the second objective of the present invention is to provide a zipper with a split end comprising the square pin.

In order to achieve the first object, the present invention provides the following technical solutions:

the utility model provides a square bolt, the both sides of square bolt all are provided with the slot, the inside of slot is provided with the locating part.

Preferably, in the square bolt, a V-shaped groove is formed at the top of the limiting member.

Preferably, in the above square plug, the top of the limiting member is a plane or an inclined plane inclined with respect to the sidewall of the slot.

Preferably, in the square bolt, the top of the limiting member is an inverted V-shaped surface.

Preferably, in the above block pin, the block pin is an integrated structure.

Preferably, in the above square pins, the square pins are metal square pins.

Preferably, in the above square plug, the limiting member is fixedly connected to a bottom wall or a side wall of the slot.

A split zipper comprising a square insert as claimed in any one of the above claims.

Use the utility model provides a during the square bolt, insert a chain belt in one of them slot and fix in the slot, directly offset the terminal sprocket of chain belt with the locating part in the slot when inserting, then fix the chain belt in the slot again. When another chain belt is inserted into another slot, the chain teeth at the tail end of the chain belt are abutted to the limiting parts in the slot, so that the lengths of the two chain belts extending into the slot are equal, the tightness of the two chains before pulling is same, and the blockage and unsmooth condition during pulling is avoided. In addition, set up the locating part in slot inside, strengthened the intensity of square bolt greatly, made it non-deformable when carrying out the punching press, and then avoided the square bolt after the deformation to appear the plug not in order or the condition of card pause when using.

In order to achieve the second object, the utility model also provides a separating zipper, which comprises any one of the above square bolts. Because the square bolt has the technical effects, the open-end zipper with the square bolt also has the corresponding technical effects.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic diagram of a block pin of the prior art;

fig. 2 is a front view of a square plug according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a second half according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a second half according to another embodiment of the present invention;

fig. 5 is a schematic structural view of a second half according to another embodiment of the present invention;

fig. 6 is a schematic structural view of a second half according to another embodiment of the present invention.

In fig. 1:

01-slot;

in fig. 2-6:

1-a first half body, 2-a second half body, 3-a slot and 4-a limiting piece.

Detailed Description

A first object of the present invention is to provide a square bolt, which can effectively solve the problem of unsmooth locking when the zipper is pulled up, and a second object of the present invention is to provide a zipper with a zipper opening function comprising the square bolt.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left" and "right" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constituted in a specific orientation, and be operated, and thus, are not to be construed as limitations of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 2-6, the square pin comprises a first half body 1 and a second half body 2, the first half body 1 and the second half body 2 are fixedly connected, and the first half body 1 and the second half body 2 can also be an integrated structure. One side of the first half body 1 departing from the second half body 2 and one side of the second body departing from the first half body 1 are provided with slots 3, namely, the two sides of the square bolt are provided with the slots 3, a limiting part 4 is arranged inside the slots 3, and the limiting part 4 is used for abutting against the tail end teeth of the chain belt inserted into the slots. One of the slots 3 is used for fixedly connecting with a chain belt, and the other slot 3 is used for inserting the chain belt.

Use the utility model provides a during the square bolt, insert a chain belt in one of them slot 3 and fix in slot 3, directly offset the terminal sprocket of chain belt with locating part 4 in slot 3 when inserting, then fix the chain belt in slot 3 again. When another chain belt is inserted into another slot 3, the chain teeth at the tail end of the chain belt are abutted against the limiting parts 4 in the slots 3, so that the lengths of the two chain belts extending into the slots 3 are equal, the tightness of the two chains before lifting and pulling is same, and the blockage and unsmooth condition during lifting and pulling are avoided. In addition, set up locating part 4 in slot 3 inside, strengthened the intensity of square bolt greatly, made it non-deformable when carrying out the punching press, and then avoided the square bolt after the deformation the condition that the plug is out of order or the card is dunked to appear when using.

It should be noted that the slots 3 on both sides of the square plug may have the same size and shape, and the distances from the top surfaces of the limiting members 4 in the two slots 3 to the notch are equal. The limiting member 4 should be disposed close to the bottom of the slot 3, that is, the distance from the limiting member 4 to the bottom of the slot is smaller than the distance from the limiting member 4 to the slot. The notch and the groove bottom of the slot 3 are oppositely arranged, and the side wall of the slot 3 is also provided with a side opening so as to be convenient for inserting the chain belt.

As shown in fig. 6, the stopper 4 has a V-shaped groove at the top thereof in order to prevent the end teeth of the link belt from being displaced after abutting against the stopper 4. The top of the limiting member 4 is the side of the slot bottom far away from the slot 3. Therefore, the chain teeth at the tail end of the chain belt are directly clamped in the V-shaped groove.

As shown in fig. 3, the top of the limiting member 4 may be a plane. Of course, as shown in fig. 4, the top of the limiting member 4 may also be an inclined surface inclined with respect to the sidewall of the slot 3, which is not limited herein.

In another embodiment, as shown in FIG. 5, the top of the stopper 4 is an inverted V-shaped profile, so that the end teeth of the chain belt can abut against the end of the inverted V-shaped profile to prevent the dislocation.

The stopper 4 may be embodied in any structure such as a plate structure and a block structure, and is not limited herein.

In order to facilitate processing and manufacturing, the square bolt is of an integrated structure and is directly formed by integral injection molding or integral casting. Of course, the first half body 1 and the second half body 2 can be processed separately, and then the first half body 1 and the second half body 2 can be fixedly connected together, which is not limited herein.

Preferably, the square pins are metal square pins. The square plug is made of metal, so that the square plug can be directly formed by integral casting. Of course, the square plug may also be made of plastic, and is not limited herein.

In another embodiment, the limiting member 4 is fixedly connected to the bottom wall and/or the side wall of the slot 3, that is, the limiting member 4 may be directly and fixedly connected to the bottom wall or directly and fixedly connected to the side wall, and the limiting member 4 may also be simultaneously and fixedly connected to the bottom wall and the side wall.

Based on the square bolt that provides in the above-mentioned embodiment, the utility model also provides a separating zipper, should separate the separating zipper and include arbitrary square bolt in the above-mentioned embodiment. As the square bolt in the above embodiment is adopted in the separating zipper, please refer to the above embodiment for the beneficial effect of the separating zipper.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The utility model provides a square bolt, the both sides of square bolt all are provided with slot (3), characterized in that, the bottom of slot (3) is provided with locating part (4), square bolt includes first halfbody (1) and second halfbody (2), the one side that deviates from second halfbody (2) of first halfbody (1) and the one side that deviates from first halfbody (1) of second halfbody (2) all are provided with slot (3), locating part (4) are used for offseting with the terminal sprocket of the chain belt that inserts the slot, and one of them slot (3) is used for with a chain belt fixed connection, and another slot (3) are used for inserting the chain belt.

2. A square plug according to claim 1, characterised in that the top of the retainer (4) has a V-shaped groove.

3. A square bolt according to claim 1, characterised in that the top of the retaining element (4) is flat or inclined with respect to the side walls of the socket (3).

4. A square bolt according to claim 1, characterised in that the top of the retainer (4) is of inverted V-profile.

5. A block pin as recited in claim 1, wherein said block pin is a one-piece structure.

6. A square plug as in claim 1, wherein the square plug is a metal square plug.

7. A square plug according to claim 1, wherein the retaining member (4) is fixedly connected to the bottom wall or the side wall of the socket (3).

8. A split slide fastener comprising the block pin according to any one of claims 1 to 7.

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