CN211065278U - Square key and zipper - Google Patents

Abstract

The utility model discloses a square key, which comprises a pressing groove and a limiting block, wherein the limiting block is convexly fixed at the back of the pressing groove and used for blocking a pull head; the pressing groove is used for splicing and pressing the cloth belt, and the pressing groove and the cloth belt are fixed into a whole; set up the dog on at least one inside wall in pressfitting groove, the dog that sets up on one of them inside wall can contact with another inside wall, prescribes a limit to the interval between two inside walls in pressfitting groove through the dog, and pressfitting strap is just pressed fit in the pressfitting groove when the dog is spacing. The edge of pressfitting groove is used for pushing down the strap, and the width at pressfitting groove edge is greater than the thickness of strap before the pressfitting, through the interval of dog restriction pressfitting groove, compresses tightly the strap just when the pressfitting groove reaches minimum interval, and the strap is connected with pressfitting groove rigid coupling, because blockking of dog, interval between the pressfitting groove can't further be compressed, prevents that the strap from being crushed, reaches suitable fixed effect between square key and the strap. The zipper of the utility model can realize the same technical effect.

Description

Square key and zipper

Technical Field

The utility model relates to a zip fastener technical field further relates to a square key. In addition, the utility model also relates to a zipper.

Background

The zipper block key and the inserted pin are main components of the zipper, and the zipper block key is used for preventing the pull head from falling off and can quickly open the zipper teeth on the two sides. The zipper is usually made of metal or plastic, the square key of the metal is formed into a blank by die casting, and the blank is stamped and reinforced at the position of the lower body of the zipper teeth by equipment after processes such as polishing, electroplating and the like.

The square keys are deformed in the stamping reinforcement, the material property and the equipment precision influence the deformation process, and the stamping deformation degree is difficult to accurately control; the reinforcing parameters of the product with excessively small deformation can not meet the use requirements, and the product can not be effectively fixed with a cloth belt and is easy to loosen; if the deformation is too large, the pressure of the metal material on the cloth belt is too large, so that the cloth belt is damaged, and the cloth belt has the hidden danger of breakage.

For those skilled in the art, how to accurately control the deformation degree of the square key to prevent over-tightening or over-loosening is a technical problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a square key can accurately control the deformation degree of square key, prevents tension or too pine, and concrete scheme is as follows:

a square key comprises a pressing groove and a limiting block, wherein the limiting block is convexly fixed on the back of the pressing groove and used for blocking a pull head;

the pressing groove is used for inserting and pressing a cloth belt, a stop block is arranged on at least one inner side wall of the pressing groove and used for limiting the distance between the inner side walls of the pressing groove, and the pressing groove just presses the cloth belt when the stop block is limited.

Optionally, the two stoppers are respectively arranged on two inner side walls of the pressing groove.

Optionally, the stoppers are symmetrically arranged about a symmetry axis of the pressing groove, and the two stoppers can be abutted in a contact manner.

Optionally, the stopper is disposed at a bottom end edge of the pressing groove.

Optionally, the contact surfaces of the two blocks are flat surfaces.

Optionally, the thickness of the stopper is less than the depth of the press groove.

The utility model also provides a zipper, including above-mentioned arbitrary square key.

The utility model has the core that the square key comprises a pressing groove and a limiting block, wherein the limiting block is convexly fixed at the back of the pressing groove and used for blocking the pull head; the pressing groove is used for splicing and pressing the cloth belt, and the pressing groove and the cloth belt are fixed into a whole; set up the dog on at least one inside wall in pressfitting groove, the dog that sets up on one of them inside wall can contact with another inside wall, prescribes a limit to the interval between two inside walls in pressfitting groove through the dog, and pressfitting strap is just pressed fit in the pressfitting groove when the dog is spacing. The edge of pressfitting groove is used for pushing down the strap, and the width at pressfitting groove edge is greater than the thickness of strap before the pressfitting, through the interval of dog restriction pressfitting groove, compresses tightly the strap just when the pressfitting groove reaches minimum interval, and the strap is connected with pressfitting groove rigid coupling, because blockking of dog, interval between the pressfitting groove can't further be compressed, prevents that the strap from being crushed, reaches suitable fixed effect between square key and the strap. The zipper of the utility model can realize the same technical effect.

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 an axis measurement structure of a specific embodiment of a square key provided by the present invention;

FIG. 2 is a front view of one embodiment of a square key provided by the present invention;

fig. 3 is a structure diagram of the interfitting connection of the cloth belt and the stitching groove.

The figure includes:

the pressing groove 1, the limiting block 2 and the stop block 3.

Detailed Description

The core of the utility model is to provide a square key, which can accurately control the deformation degree of the square key and prevent over-tightening or over-loosening.

In order to make those skilled in the art better understand the technical solution of the present invention, the block keys and the slide fastener of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, in order to provide an axial structure diagram of a specific embodiment of the square key of the present invention, fig. 2 is a front view of a specific embodiment of the square key of the present invention; this square key is including laminating groove 1 and stopper 2, and stopper 2 protrusion is fixed at the back in laminating groove 1, also is located laminating groove 1 and does not set up open-ended position, and stopper 2 is used for blockking the pull head, plays the positioning action to the pull head, sets up the slot on stopper 2, and inside is used for the cartridge bolt.

The pressfitting groove 1 is the recess shape structure, is used for pegging graft pressfitting strap in the pressfitting groove 1, and the edge of strap stretches into the pressfitting inslot 1, and two inside walls in pressfitting groove 1 extrude each other and are close to, and the position protrusion that is close to the outside border in pressfitting groove 1 sets up the briquetting for extrude fixed strap, when the inside wall in pressfitting groove 1 was close to each other, two briquettings extrude the both sides of strap respectively, and pressfitting groove 1 realizes relatively fixed with the strap.

A stop block 3 is arranged on at least one inner side wall of the pressing groove 1, the stop block 3 is a block-shaped structure protruding out of the inner side wall of the pressing groove 1, the pressing groove 1 is surrounded by three side walls, two opposite side walls are the inner side walls, and the other side wall is the bottom surface; dog 3 is used for the interval between the inside wall of limited compression groove 1, and when setting up dog 3 on one of them inside wall and other structures that set up on another inside wall or the inside wall top leaned on, the distance between two inside walls can't continue to shorten, reaches minimum interval, realizes limiting displacement.

When the stop block 3 plays a limiting role, the laminating groove 1 just laminates the cloth belt, and the stop block 3 is limited between the two inner side walls of the laminating groove 1, so that the laminating grooves 1 cannot be continuously close to each other due to the blocking of the stop block 3 to reach the minimum distance, the edge of the laminating groove 1 is just fixed relative to the cloth belt, and the laminating groove 1 and the cloth belt have proper pressure, so that effective fixation is realized; the two inner side walls of the pressing groove 1 can not be continuously close due to the blocking of the stop block 3, so that the cloth belt is prevented from being damaged due to overlarge deformation of the pressing groove 1, the deformation degree of the square keys can be accurately controlled, and the excessive tightness or looseness is prevented; meanwhile, the arrangement of the stop block 3 can facilitate visual observation of whether the cloth belt 3 is pressed or not.

On the basis of the scheme, the utility model provides a dog 3 sets up two, sets up respectively on two inside walls of laminating groove 1, also sets up a dog 3 on two lateral walls of laminating groove 1 respectively, and two dogs 3 mutually support and play spacing effect.

Preferably, as shown in fig. 2, the pressing groove 1 has an axisymmetric structure, and the two inner side walls of the pressing groove 1 have the same shape; dog 3 sets up about the symmetry axis symmetry of laminating groove 1, and 3 shapes, the size of the dog that set up on two inside walls of laminating groove 1 are the same, and the position corresponds each other, therefore two dog 3 can the relative contact top lean on, and every dog 3 sets up rather than the lateral wall an organic whole at place, leans on to realize spacingly by two dog 3 mutual contact tops.

Of course, the present invention does not exclude the embodiment in which the two stop blocks 3 are staggered with each other, and these specific embodiments should be included in the protection scope of the present invention.

The utility model discloses set up at the bottom edge of laminating groove 1 at dog 3, the bottom here indicates the direction shown in figure 1, and when normal clothing was worn, the direction of square key is as shown in figure 1.

Direct contact between two dog 3, both do not the pressfitting strap, therefore the bottommost of square key is slightly less than the bottommost of strap, sets up dog 3 at the bottom edge in pressfitting groove 1, can reduce the difference between strap bottom and the 1 bottom in pressfitting groove. As shown in fig. 3, it is a structure diagram of the matched connection between the cloth belt and the stitching groove 1; where a denotes a tape with its bottom end above the stop 3.

As shown in fig. 1, the contact surfaces of the two stoppers 3 are flat surfaces, which reduces the difficulty in processing the stoppers 3, but it is also possible to set the surfaces of the stoppers 3 that contact each other as tooth-like structures that engage each other.

The thickness of dog 3 is less than the degree of depth of pressfitting groove 1, and the thickness of dog 3 also is in the size of pressfitting groove 1 degree of depth direction, only need in pressfitting groove 1 near the position of outside edge set up dog 3 can, reduce the size of dog 3, save material.

The utility model also provides a zipper, including foretell square key, the same technological effect can be realized to this zipper, and prior art is please refer to other partial structures of this zipper, the utility model discloses no longer describe herein.

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 (7)

1. A square key is characterized by comprising a pressing groove (1) and a limiting block (2), wherein the limiting block (2) is fixed on the back of the pressing groove (1) in a protruding mode and used for blocking a pull head;

the cloth belt pressing device is characterized in that a pressing cloth belt is inserted into the pressing groove (1), a stop block (3) is arranged on at least one inner side wall of the pressing groove (1), the stop block (3) is used for limiting the distance between the inner side walls of the pressing groove (1), and the pressing groove (1) is used for pressing the cloth belt right when the stop block (3) is limited.

2. A square key according to claim 1, wherein said stoppers (3) are provided in two, respectively on two inner side walls of said pressing groove (1).

3. A square key according to claim 2, characterized in that the stops (3) are arranged symmetrically with respect to the axis of symmetry of the groove (1), the two stops (3) being able to abut against each other in a touching manner.

4. A square key according to claim 3, characterized in that the stopper (3) is arranged at the bottom end edge of the press groove (1).

5. A square key according to claim 4, characterised in that the contact surfaces of both said stops (3) are plane surfaces.

6. A square key according to claim 5, characterized in that the thickness of the stopper (3) is smaller than the depth of the press groove (1).

7. A slide fastener comprising the square key according to any one of claims 1 to 6.

Images