CN215649566U

CN215649566U - Zipper and lower stop structure thereof

Info

Publication number: CN215649566U
Application number: CN202121977988.9U
Authority: CN
Inventors: 杨兴怀; 金志�; 胡武杰; 刘磊
Original assignee: Zhejiang Weixing Industrial Development Co Ltd
Current assignee: Zhejiang Weixing Industrial Development Co Ltd
Priority date: 2021-08-20
Filing date: 2021-08-20
Publication date: 2022-01-28
Anticipated expiration: 2031-08-20

Abstract

The utility model discloses a lower stop structure, which comprises a lower stop block arranged at the bottom end of a first chain and a movable bolt arranged at the bottom end of a second chain, wherein a through bolt inner hole which is matched and inserted with the movable bolt is formed between the front end surface and the rear end surface of the lower stop block, the side wall surface of the lower stop block is provided with a side seam which extends along the length direction of the lower stop block, is communicated with the bolt inner hole and is used for avoiding a textile belt connected on the second chain, the outer contour size of the movable bolt is equivalent to the inner contour size of the bolt inner hole, and the rear end surface of the lower stop block is provided with a limiting reinforcing rib which is used for abutting against the end part of the movable bolt to limit the insertion depth of the movable bolt. So, through the cooperation of activity bolt and bolt hole and the butt of spacing strengthening rib to the activity bolt, realize that the location of activity bolt in the bolt hole connects and insert, can guarantee pulling smoothly of pull head on the spacing basis of inserting of realization activity bolt in the bolt hole. The utility model also discloses a zipper, which has the beneficial effects.

Description

Zipper and lower stop structure thereof

Technical Field

The utility model relates to the technical field of zippers, in particular to a lower stop structure. The utility model also relates to a zipper.

Background

The zipper is a common product of daily clothes, and can facilitate the wearing and taking-off operation of clothes.

At present, a zipper mainly comprises a chain, a cloth belt embedded on the outer side of the chain, zipper teeth distributed on the inner side of the chain, a lower stop structure arranged at the bottom of the chain, an upper stop structure arranged at the top of the chain, a slider sliding back and forth on the zipper teeth, a pull piece arranged on the slider and the like. The lower stop structure is used as a starting point of the whole zipper, plays a vital role, and can ensure the mutual meshing of subsequent zipper teeth only if the lower stop structure is reasonably designed.

In the prior art, the lower stop structure is usually a square pin structure, and mainly includes a lower stop square, a fixed pin and a movable pin. The fixed bolt is fixedly arranged on the front end face of the lower stop block and belongs to one chain together with the lower stop block, and the movable bolt is arranged on the other chain and can be inserted into a bolt inner hole of the lower stop block. When the zipper puller is used, a user can pull the puller to the front end face of the lower stop block, one side of the puller keeps matched with the fixed bolt, the movable bolt is inserted into the other side of the puller and further inserted into the bolt inner hole of the lower stop block, then the user pulls the puller upwards, two parallel zippers can be combined into a whole zipper, otherwise, the user pulls the puller downwards, and the whole zipper can be gradually separated to form the parallel zippers.

In a conventional zipper bottom stop structure, in order to limit a movable bolt in an inner hole of a bolt, a height drop step is usually added on the surface of the movable bolt, so that the front end of the movable bolt is limited by the step after being inserted into the inner hole of the bolt. However, the step on the movable plug is affected by the distance between the fastener and the lower stop block, and when the movable plug is inserted into the slider and the inner hole of the plug, the slider may be jammed due to the influence of the step, and it is difficult to smoothly pull the slider upward, and it is difficult to close the chain.

Therefore, how to ensure the smooth pulling of the pull head on the basis of realizing the plugging and limiting of the movable plug pin in the plug pin inner hole is a technical problem for technicians in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a lower stop structure which can ensure that a pull head can be smoothly pulled on the basis of realizing the plugging and limiting of a movable plug pin in a plug pin inner hole. Another object of the present invention is to provide a slide fastener.

In order to solve the technical problem, the utility model provides a lower stop structure, which comprises a lower stop block arranged at the bottom end of a first chain and a movable bolt arranged at the bottom end of a second chain, wherein a through bolt inner hole which is matched and inserted with the movable bolt is formed between the front end surface and the rear end surface of the lower stop block, a side seam which extends along the length direction of the side seam, is communicated with the bolt inner hole and is used for avoiding a woven belt connected on the second chain, the outer contour size of the movable bolt is equivalent to the inner contour size of the bolt inner hole, and a limiting reinforcing rib which is used for abutting against the end part of the movable bolt to limit the inserting depth of the movable bolt is arranged on the rear end surface of the lower stop block.

Preferably, the movable bolt comprises a plug part inserted into the bolt inner hole, and an occlusion part connected with the plug part and used for being matched with the zipper teeth, wherein the outer contour dimension of the plug part is equivalent to the inner contour dimension of the bolt inner hole.

Preferably, the end face of the plug portion is provided with a guide inclined plane for forming a guide function when being plugged with the inner hole of the plug pin.

Preferably, the height of the patch part coincides with the height of the snap-in part.

Preferably, the surface of the engaging part is flush with the surface of a fixing bolt arranged on the front end face of the lower stop block.

Preferably, the bolt inner hole extends along the length direction of the second chain.

Preferably, the covering area of the limiting reinforcing rib on the rear end face of the lower stop block is arranged in the opening area of the side seam, and the side seam penetrates through the front end face and the rear end face of the lower stop block.

The utility model also provides a zipper, which comprises a first chain, a second chain and a lower stop structure connected between the first chain and the second chain, wherein the lower stop structure is specifically any one of the lower stop structures.

The utility model provides a lower stop structure which mainly comprises a lower stop block, a movable bolt, a bolt inner hole, a side seam and a limiting reinforcing rib. Wherein, the lower stop block is arranged at the bottom end of the first chain, and the movable bolt is arranged at the bottom end of the second chain. The inner hole of the bolt is arranged on the lower stop block and penetrates through the front end face and the rear end face of the lower stop block to form a through hole which is mainly used for matching with the movable bolt for plugging. The side seam is seted up on the lower dog block, specifically is located the lateral wall face of lower dog block, and the side seam is whole to extend along the length direction of lower dog block and distributes to simultaneously with the bolt hole intercommunication in the dog block, mainly used when the activity bolt injects in the bolt hole, provides wearing out the position space of keeping away of passageway to the weaving area of inlaying on the activity bolt, guarantees that the weaving area can follow activity bolt simultaneous movement. Spacing strengthening rib sets up on the rear end face of lower ending block, the tip of mainly used butt activity bolt to the restriction activity bolt connects the depth of inserting in the bolt hole, realizes spacing to the axial of activity bolt. Meanwhile, the outer contour dimension of the movable bolt is equivalent to the inner contour dimension of the inner hole of the bolt. Therefore, according to the lower stop structure provided by the utility model, after the movable bolt is inserted into the bolt inner hole of the lower stop block, each outer wall surface of the movable bolt is tightly attached to each inner wall surface of the bolt inner hole and forms relative friction sliding, until the end part of the movable bolt reaches a certain depth in the bolt inner hole, the movable bolt is abutted against the limiting reinforcing rib, the movable bolt is limited at the current inserting depth position, and the inner walls of the bolt inner hole are tightly attached to each outer wall surface of the movable bolt, so that the movable bolt is fixed in the bolt inner hole. Compared with the prior art, the movable plug pin can realize the positioning insertion of the movable plug pin in the plug pin inner hole through the matching of the movable plug pin and the plug pin inner hole and the butting of the limiting reinforcing ribs on the movable plug pin, and the movable plug pin does not need to be additionally provided with steps for positioning, so that the pull head is prevented from being clamped, and therefore, the pull head can be smoothly pulled on the basis of realizing the insertion and limiting of the movable plug pin in the plug pin inner hole.

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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

FIG. 2 is a schematic diagram of a bottom stop block.

FIG. 3 is a front view of the bottom stop block.

Fig. 4 is a schematic view of a movable latch.

Wherein, in fig. 1-4:

a first chain-a, a second chain-b;

the bolt comprises a lower stop block-1, a movable bolt-2, a bolt inner hole-3, a side seam-4 and a limiting reinforcing rib-5;

a fixing bolt-11, a plug-in part-21, an occlusion part-22 and a guide inclined plane-23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

In a specific embodiment provided by the utility model, the lower stop structure mainly comprises a lower stop block 1, a movable bolt 2, a bolt inner hole 3, a side seam 4 and a limiting reinforcing rib 5.

Wherein, the lower stop block 1 is arranged at the bottom end of the first chain a, and the movable bolt 2 is arranged at the bottom end of the second chain b. Generally, the lower stop block 1 is a rectangular block structure as a whole, the textile belt of the first chain a is embedded on the side wall of the lower stop block 1, and the fixing bolt 11 at the bottom of the first chain a is vertically erected on the front end face (or top end face) of the lower stop block 1. As shown in fig. 2, fig. 2 is a schematic structural diagram of a bottom stop block 1,

the bolt inner hole 3 is arranged on the lower stop block 1 and penetrates through the front end face and the rear end face of the lower stop block 1 to form a through hole which is mainly used for matching and inserting with the movable bolt 2.

Side seam 4 is seted up on lower dog 1, specifically is located the side wall face of dog 1 down, and side seam 4 is whole to extend along the length direction of dog 1 down and distributes to communicate with bolt hole 3 in the dog 1 down simultaneously, mainly used when activity bolt 2 injects in bolt hole 3, provides the spacing of keeping away of wearing out the passageway to the weaving area of inlaying on the activity bolt 2, guarantees that the weaving area can follow activity bolt 2 simultaneous movement.

Spacing strengthening rib 5 sets up on the rear end face of lower ending block 1, the tip of mainly used butt activity bolt 2 to the restriction activity bolt 2 inserts the degree of depth in bolt hole 3, realizes spacing the axial of activity bolt 2. Meanwhile, the external contour dimension of the movable bolt 2 is equivalent to the internal contour dimension of the bolt inner hole 3.

So, the lower structure that ends that this embodiment provided, insert movable bolt 2 and establish down behind the bolt hole 3 of ending square 1, each outer wall face of movable bolt 2 will closely laminate with each internal face of bolt hole 3, and form relative friction and slide, reach certain degree of depth after in bolt hole 3 until the tip of movable bolt 2, form the butt with spacing strengthening rib 5, with movable bolt 2 restriction at present connect the depth position, in addition each inner wall of bolt hole 3 is hugged closely facing each outer wall face of movable bolt 2, fix movable bolt 2 in bolt hole 3.

Compared with the prior art, this embodiment can realize that the location of activity bolt 2 in bolt hole 3 inserts through activity bolt 2 itself and the cooperation of bolt hole 3 and the butt of spacing strengthening rib 5 to activity bolt 2, need not additionally to add the step on activity bolt 2 and fix a position, and then avoids blocking the pull head, consequently can realize that activity bolt 2 is on inserting spacing basis in bolt hole 3, guarantees the smooth pulling of pull head.

As shown in fig. 4, fig. 4 is a schematic structural diagram of the movable bolt 2.

In a preferred embodiment with regard to the movable plug 2, the movable plug 2 essentially comprises a plug portion 21 and a snap portion 22, and the plug portion 21 and the snap portion 22 are designed in one piece. The inserting portion 21 is mainly used for being inserted into the inner hole 3 of the inserting pin and forms inserting fit with the inner hole 3 of the inserting pin, and the whole inserting portion 21 is basically located in the inner hole 3 of the inserting pin. Accordingly, the outer contour dimension of the inserting portion 21 is equivalent to the inner contour dimension of the bolt inner hole 3, so that the outer wall surfaces of the inserting portion 21 can smoothly form close contact and friction sliding with the inner wall surfaces of the bolt inner hole 3. The engaging part 22 is located entirely outside the bolt inner bore 3 and is mainly used for engaging with a tooth, corresponding to the first tooth.

Generally, the heights (or thicknesses) of the plug part 21 and the occlusion part 22 are kept consistent everywhere, and thus, the surface height positions of the plug part 21 and the occlusion part 22 are always flush with each other, namely flush with the height of the inner top wall of the plug inner hole 3, so that the surface of the movable plug 2 is ensured to be smooth and flat without protrusions, the existence of surface steps of the movable plug 2 is avoided, and a pull head is prevented from being clamped by the steps.

Considering that the slider needs to be matched with the fixed bolt 11 and the movable bolt 2 simultaneously during pulling, in order to ensure that the pulling of the slider is smooth, in the embodiment, the surface of the engagement part 22 is flush with the surface of the fixed bolt 11.

Furthermore, in order to facilitate the insertion of the movable plug 2 into the plug inner hole 3, the plug portion 21 of the present embodiment is provided with a guiding inclined surface 23 on the end surface. Specifically, the guiding inclined surface 23 is provided between the end surface and the upper surface of the inserting portion 21 and between the end surface and the lower surface, and may generally form a slope of 30 to 45 degrees, and is mainly used for forming an inclined abutting force by using the slope of the guiding inclined surface 23 when the end surface of the inserting portion 21 is engaged with the opening of the inner hole 3 of the bolt, and further assisting the movable bolt 2 to be inserted into the inner hole 3 of the bolt by using the component force of the abutting force.

In a preferred embodiment of the bolt inner hole 3, the bolt inner hole 3 extends along the length direction of the second chain b, and accordingly, the movable bolt 2 has a rectangular long strip shape.

As shown in fig. 3, fig. 3 is a front view of the bottom dog block 1.

In another embodiment of the present invention, considering that the movable bolt 2 is embedded with a textile tape connected with a chain, such as a cloth tape, cloth glue or transparent glue, the textile tape will move synchronously with the inserting movement of the movable bolt 2, and may be damaged, broken, etc. with the limiting reinforcing rib 5 impacting on the lower stop block 1. In contrast, in the present embodiment, the specific coverage area of the position restricting rib 5 on the rear end surface (or the bottom end surface) of the bottom dog 1 avoids the opening area of the side seam 4, and both ends of the side seam 4 penetrate the front and rear end surfaces of the bottom dog 1. So set up, the slot is link up in the formation of side seam 4 on the lateral wall of lower stop block 1, and spacing strengthening rib 5 exposes the tip opening of side seam 4 simultaneously to can be at the activity bolt 2 insert the in-process, ensure that the weaving area can pass through whole side seam 4 unimpededly, avoid spacing strengthening rib 5 to cause the butt to the weaving area in the side seam 4.

The present embodiment further provides a zipper, which mainly includes a first chain a, a second chain b, and a bottom stop structure connected between the first chain a and the second chain b, wherein the specific content of the bottom stop structure is the same as the related content, and is not described herein again.

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 utility model. 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

1. A lower stop structure is characterized by comprising a lower stop block (1) arranged at the bottom end of a first chain (a) and a movable bolt (2) arranged at the bottom end of a second chain (b), a through bolt inner hole (3) which is used for matching and inserting with the movable bolt (2) is arranged between the front end surface and the rear end surface of the lower stop block (1), the side wall surface of the lower stop block (1) is provided with a side seam (4) which extends along the length direction of the lower stop block and is communicated with the bolt inner hole (3) and used for avoiding the position of a textile belt connected on the second chain (b), the external contour dimension of the movable bolt (2) is equivalent to the internal contour dimension of the bolt inner hole (3), and a limiting reinforcing rib (5) which is used for abutting against the end part of the movable bolt (2) to limit the inserting depth of the movable bolt is arranged on the rear end face of the lower stop block (1).

2. An under-stop structure according to claim 1, characterized in that said movable plug (2) comprises a plug portion (21) for insertion into said plug-pin bore (3), an engagement portion (22) connected to said plug portion (21) and for engagement with a sprocket, said plug portion (21) having an outer contour dimension corresponding to an inner contour dimension of said plug-pin bore (3).

3. The lower stop structure according to claim 2, wherein the end face of the inserting portion (21) is provided with a guiding inclined surface (23) for forming a guiding function when being inserted into the inserting pin inner hole (3).

4. An undercut structure according to claim 2, characterized in that said patch portion (21) coincides in height with said snap-in portion (22).

5. The bottom stop structure according to claim 4, wherein the surface of the engaging portion (22) is flush with the surface of a fixing plug (11) provided on the front end surface of the bottom stop block (1).

6. The bottom stop arrangement according to claim 1, wherein the bolt bore (3) extends along the length of the second chain (b).

7. The lower stop structure according to any one of claims 1 to 6, wherein the covering area of the limiting reinforcing ribs (5) on the rear end surface of the lower stop block (1) is away from the opening area of the side seams (4), and the side seams (4) penetrate through the front end surface and the rear end surface of the lower stop block (1).

8. A slide fastener comprising a first stringer (a), a second stringer (b) and a bottom stop arrangement connected therebetween, wherein the bottom stop arrangement is in particular as claimed in any one of claims 1 to 7.