CN107373918B

CN107373918B - Zipper with self-locking function

Info

Publication number: CN107373918B
Application number: CN201710551770.9A
Authority: CN
Inventors: 郑志华; 陈国红; 郑安安; 王飞; 董希文; 郑彬彬
Original assignee: Zhejiang Hengwei Zipper Co ltd
Current assignee: Zhejiang Hengwei Zipper Co ltd
Priority date: 2017-07-07
Filing date: 2017-07-07
Publication date: 2020-04-17
Anticipated expiration: 2037-07-07
Also published as: CN107373918A

Abstract

The invention discloses a zipper with a self-locking function, which comprises a pull head, two chain belts and a plurality of chain teeth arranged on the chain belts, wherein the pull head is provided with a pull head; the pull head is including the splint portion that is used for pressing from both sides the chain belt at the plastics material wherein, being located locking portion in the splint portion and being located plastics material's pull ring in the locking portion, locking portion includes the perpendicular to the riser portion of the plastics material of punch holder the inside square groove of having seted up along its long direction of riser portion the inside and being located of riser portion still seted up a square hole on the extension cord of the front side in square groove, the square pole of a plastics material inserts in the square hole and connect and be located a slider of the plastics material in the square groove the lower terminal surface of slider is fixed with a magnet. The self-locking zipper has a simple structure, is convenient to operate, and is provided with the locking part, so that the zipper head is clamped by the locking part after the zipper teeth on two sides are meshed, and the zipper head cannot slide, thereby achieving the purpose of locking.

Description

Zipper with self-locking function

Technical Field

The invention relates to a zipper with a self-locking function, and belongs to the technical field of zippers.

Background

A zipper is a connecting part for combining or separating articles by means of continuously arranged zipper teeth, and is used for clothing, bags, tents and the like, and is characterized by that two belts are respectively equipped with a fastener formed from a row of metal teeth or plastic teeth for connecting the edge of opening (for example, clothes or bag mouth), and a sliding part can be used for pulling two rows of teeth into interlocking position to make the opening be closed. As shown in fig. 1, a conventional slide fastener is composed of elements 1 and a slider 2, wherein the elements 1 are key parts and directly determine the side pull strength of the slide fastener, the slide fastener generally includes two

fastener tapes

3a, 3b, each

fastener tape

3a, 3b has one row of elements 1, the two rows of elements 1 are arranged alternately, the slider 2 holds the two rows of elements 1, the slider 2 includes a clamping plate portion 2a for clamping the fastener tapes therein and a pull tab 2b located on the clamping plate portion 2a, the pull tab 2b is pulled to slide the slider 2 so as to engage or disengage the elements 1 on both sides with each other, the clamping plate portion 2a includes an upper clamping plate and a lower clamping plate arranged in parallel, and a pillar connecting the upper clamping plate and the lower clamping plate, the pillar is located on the front side of the clamping plate portion, that is the direction in which the slider 2 engages the elements 1. The existing zippers are often separated due to vibration or accidental bumping, so that a self-locking zipper is needed to be designed for the situation.

Disclosure of Invention

Therefore, the present invention is directed to overcome the drawbacks of the prior art, and to provide a slide fastener with a self-locking function, which can prevent the slide fastener from being disengaged, and has a locking portion, so that when the fastener elements on both sides are engaged, the slider is locked by the locking portion, and the slider cannot slide, thereby achieving the purpose of locking.

In order to achieve the purpose, the zipper with the self-locking function comprises a pull head, two zipper belts and a plurality of zipper teeth arranged on the zipper belts; the pull head comprises a clamping plate part, a locking part and a pull ring, wherein the clamping plate part is used for clamping a chain belt in a plastic material, the locking part is positioned on the clamping plate part, the pull ring is positioned on the plastic material of the locking part, the clamping plate part comprises an upper clamping plate and a lower clamping plate which are arranged in parallel and a stand column which is connected with the upper clamping plate and the lower clamping plate, the stand column is positioned on the front side of the clamping plate part, the locking part comprises a vertical plate part which is perpendicular to the plastic material of the upper clamping plate, the length direction of the vertical plate part is consistent with the moving direction of the pull head when in use, a square groove is arranged in the vertical plate part along the length direction, the square groove comprises a square groove starting end which is close to the position on the rear side of the vertical plate part and a square groove terminating end which extends to the middle part of the vertical plate part, and a square hole, one end of the square hole is communicated with the termination end of the square groove, and the other end of the square hole is communicated with the outside of the vertical plate part; a square rod made of plastic is inserted into the square hole and connected with a sliding block made of plastic and positioned in the square groove, and a magnet is fixed on the lower end face of the sliding block; the spring leaf made of stainless steel comprises a bent plate part, an inserting plate part and inserting rod parts, wherein the inserting plate part is generally vertically connected to one end of the bent plate part, which is far away from the square hole, and the inserting rod parts are positioned on the left side and the right side of one end of the bent plate part, which is close to the square hole; the lower side wall of the square groove is provided with an accommodating groove for accommodating the bent plate part, the left side and the right side of one end, close to the square hole, of the accommodating groove are respectively provided with an inserting hole for inserting the inserted rod part, one end, far away from the square hole, of the accommodating groove is provided with a vertically downward inserting groove for inserting the inserted rod part, and the inserting groove is communicated with a through hole formed in the upper clamping plate, so that the lower tip of the inserted plate part can penetrate through the through hole and protrude out of the lower end face of the upper clamping plate; and a through groove which is communicated with the left side surface and the right side surface of the vertical plate part is formed in the position on the vertical plate part and above the square hole, the pull ring is a square ring, and the pull ring is sleeved on the through groove.

And a chamfer structure is arranged at the edge position of the pull ring.

By adopting the technical scheme, when the puller is required to move, the square rod is pulled outwards, so that the slider is separated from the stainless steel reed, the bent plate part of the stainless steel reed is restored to a bending state when the stainless steel reed is not acted by external force, and the inserting plate part retracts upwards from the through hole of the upper clamping plate along with the bending of the bent plate part; when the puller needs to be locked, the square rod is pushed inwards, the sliding block is moved to the upper part of the bent plate part and presses the bent plate part downwards, the bent plate part is changed into a straight state from a bent state after being stressed, and therefore the insertion plate part is driven to be inserted into the through hole of the upper clamping plate downwards and the lower tip end of the insertion plate part is clamped on the zipper teeth between the upper clamping plate and the lower clamping plate, and the puller cannot move; because the whole puller except the magnet and the stainless steel spring piece are all made of plastic materials, only the stainless steel spring piece can generate magnetic force action on the magnet, therefore, when the slider is positioned above the stainless steel spring piece, the puller is in a locking state, and meanwhile, attractive force exists between the magnet and the stainless steel spring piece, so that the pressure between the slider and the stainless steel spring piece is increased, and the sliding friction force between the slider and the stainless steel spring piece is increased, thereby avoiding the slider from accidentally separating from a bent plate part along with the vibration of the puller; the pull tab can be conveniently pulled, and the pull tab is sleeved on the through groove, so that the pull tab can freely swing forwards or backwards and cannot be blocked by the vertical plate part. The zipper with the self-locking function has a simple structure, is convenient to operate, and is provided with the locking part, so that the zipper head is clamped by the locking part after the zipper teeth on two sides are meshed, and the zipper head cannot slide, thereby achieving the purpose of locking.

Drawings

Fig. 1 is a schematic view of a structure of a slide fastener in the prior art.

Fig. 2 is a schematic view of the structure of the slide fastener of the present invention.

Fig. 3 is a schematic view of the slider structure of the present invention.

Fig. 4 is an exploded view of fig. 3.

FIG. 5 is an exploded view of the square rod, riser and stainless steel spring of FIG. 4.

Fig. 6 is a schematic view of the slider shown in fig. 4 after being detached from the stainless steel spring.

Detailed Description

The invention is described in further detail below with reference to the figures and the detailed description.

As shown in fig. 2, the present embodiment provides a slide fastener with a self-locking function, which includes a slider 101, two fastener tapes 102, and a plurality of fastener elements 103 disposed on the fastener tapes 102.

As shown in fig. 3, the slider 101 includes a plastic clip portion 110 for sandwiching the fastener tape 102, a locking portion 120 provided on the clip portion 110, and a plastic tab 130 provided on the locking portion 120, the clip portion 110 includes an upper clip 111 and a lower clip 112 arranged in parallel, and a post 113 connecting the upper clip 111 and the lower clip 112, and the post 113 is provided on the front side of the clip portion 110. In the present invention, the front side means a direction in which the elements 103 are engaged by pulling the slider 101, and the rear side means a direction opposite to the front side.

As shown in fig. 4 to 5, the locking portion 120 includes a vertical plate portion 121 perpendicular to the upper plate 111, and the locking portion 120 is cut into several portions and the vertical plate portion 121 is cut into two symmetrical portions for convenience of illustration. The length direction of the vertical plate portion 121 is the same as the moving direction of the slider 101 in use, a square groove 122 is formed in the vertical plate portion 121 along the length direction, the square groove 122 includes a square groove starting end 122e near the rear side of the vertical plate portion 121 and a square groove terminating end 122f extending to the middle of the vertical plate portion 121, a square hole 123 is further formed in the vertical plate portion 121 on an extension line of the front side of the square groove 122, one end of the square hole 123 is communicated with the square groove terminating end 122f, and the other end is communicated with the outside of the vertical plate portion 121; a square rod 124 made of plastic is inserted into the square hole 123 and connected to a slide 125 made of plastic in the square groove, the slide 125 can move in the square groove 122 but cannot enter the square hole 123; a magnet 129 is fixed on the lower end surface of the slide block 125; a stainless steel spring plate 126 comprising a bent plate portion 126a, a plate insertion portion 126b connected substantially perpendicularly to an end of the bent plate portion 126a remote from the square hole 123, and rod insertion portions 126c located on left and right sides of an end of the bent plate portion 126a close to the square hole 123; an accommodating groove 122a for accommodating the bent plate portion 126a is formed in the lower side wall of the square groove 122, insertion holes 122c for inserting the insertion rod portions 126c are respectively formed in the left side and the right side of one end, close to the square hole 123, of the accommodating groove 122a, an insertion groove 122b for inserting the insertion rod portions 126c is vertically and downwardly formed in one end, far away from the square hole 123, of the accommodating groove 122a, and the insertion groove 122b is communicated with a through hole 111a formed in the upper clamping plate 111, so that the lower tip 126b1 of the insertion plate portion 126b can penetrate through the through hole 111a and protrude out of the lower end face of the upper clamping plate 111.

A through groove 131 is formed in the vertical plate 121 at a position above the square hole 123 and extends through both left and right side surfaces of the vertical plate 121, the pull ring 120 is a square ring, and the pull ring 130 is fitted in the through groove 131.

The edge position of the pull ring 130 is provided with a chamfer structure 130 a.

By adopting the technical scheme, when the slider 101 is required to move, the square rod 124 is pulled outwards, so that the slider 125 is separated from the stainless steel reed 126, the bent plate part 126a of the stainless steel reed 126 restores to a bending state when no external force is applied, and the inserting plate part 126b retracts upwards from the through hole 111a of the upper clamping plate 111 along with the bending of the bent plate part 126 a; when the slider 101 needs to be locked, the square rod 124 is pushed inwards, the slider 125 is moved to the upper part of the bent plate portion 126a and presses the bent plate portion 126a downwards, as shown in fig. 4, 5 and 6, the bent plate portion 126a is forced to change from the bent state to the straight state, so that the insertion plate portion 126b is driven to be inserted downwards into the through hole 111a of the upper clamping plate 111 and the lower tip 126b1 is clamped on the zipper teeth 103 between the upper clamping plate 111 and the lower clamping plate 112, and the slider 101 cannot move; meanwhile, the whole slider is made of plastic except for the two parts of the magnet 129 and the stainless steel spring 126, so that only the stainless steel spring 126 can generate magnetic force action on the magnet 129, when the slider 125 is positioned above the stainless steel spring 126, the slider is in a locking state, and meanwhile, attractive force exists between the magnet 129 and the stainless steel spring 126, so that the pressure between the slider 125 and the stainless steel spring 126 is increased, and the sliding friction force between the slider 125 and the stainless steel spring 126 is increased, thereby avoiding the slider 125 from accidentally separating from a bent plate part along with the vibration of the slider, and meanwhile, the attractive force action between the magnet 129 and the stainless steel spring 126 can give obvious force feedback to a user when the user pushes and pulls the square rod, so that the user can know whether the zipper is locked or not according to the force feedback; pulling of the slider is facilitated by the pull ring 130, and the pull ring 130 is sleeved on the through groove 131, so that the pull ring can freely swing forwards or backwards without being blocked by the vertical plate part 121.

The zipper with the self-locking function has a simple structure and is convenient to operate, the locking part 120 is arranged on the zipper, and the zipper 101 is clamped by the locking part 120 after the zipper teeth 103 on two sides are meshed, so that the zipper 101 cannot slide, and the purpose of locking is achieved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The utility model provides a zip fastener with self-locking function which characterized in that: comprises a pull head, two chain belts and a plurality of chain teeth arranged on the chain belts; the pull head comprises a clamping plate part, a locking part and a pull ring, wherein the clamping plate part is used for clamping a chain belt in a plastic material, the locking part is positioned on the clamping plate part, the pull ring is positioned on the plastic material of the locking part, the clamping plate part comprises an upper clamping plate and a lower clamping plate which are arranged in parallel and a stand column which is connected with the upper clamping plate and the lower clamping plate, the stand column is positioned on the front side of the clamping plate part, the locking part comprises a vertical plate part which is perpendicular to the plastic material of the upper clamping plate, the length direction of the vertical plate part is consistent with the moving direction of the pull head when in use, a square groove is arranged in the vertical plate part along the length direction, the square groove comprises a square groove starting end which is close to the position on the rear side of the vertical plate part and a square groove terminating end which extends to the middle part of the vertical plate part, and a square hole, one end of the square hole is communicated with the termination end of the square groove, and the other end of the square hole is communicated with the outside of the vertical plate part; a square rod made of plastic is inserted into the square hole and connected with a sliding block made of plastic and positioned in the square groove, and a magnet is fixed on the lower end face of the sliding block; the spring leaf made of stainless steel comprises a bent plate part, an inserting plate part and inserting rod parts, wherein the inserting plate part is generally vertically connected to one end of the bent plate part, which is far away from the square hole, and the inserting rod parts are positioned on the left side and the right side of one end of the bent plate part, which is close to the square hole; the lower side wall of the square groove is provided with an accommodating groove for accommodating the bent plate part, the left side and the right side of one end, close to the square hole, of the accommodating groove are respectively provided with an inserting hole for inserting the inserted rod part, one end, far away from the square hole, of the accommodating groove is provided with a vertically downward inserting groove for inserting the inserted rod part, and the inserting groove is communicated with a through hole formed in the upper clamping plate, so that the lower tip of the inserted plate part can penetrate through the through hole and protrude out of the lower end face of the upper clamping plate; and a through groove which is communicated with the left side surface and the right side surface of the vertical plate part is formed in the position on the vertical plate part and above the square hole, the pull ring is a square ring, and the pull ring is sleeved on the through groove.

2. The slide fastener with self-locking function according to claim 1, wherein: and a chamfer structure is arranged at the edge position of the pull ring.