CN2146153Y

CN2146153Y - Rail-type zipper preventing against dust, wind and water

Info

Publication number: CN2146153Y
Application number: CN 92246021
Authority: CN
Inventors: 祁林冲
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-31
Filing date: 1992-12-31
Publication date: 1993-11-17
Anticipated expiration: 2002-12-31

Abstract

The utility model relates to a rail type three prevention zipper which is mainly composed of a pull head 1 of which the cross section approximately forms an S shape, a rail type lock bar 2 and a connecting band 3 which is fixedly connected with the lock bar. When the zipper is used, the zipper applies pressure on the lock bar which enters the upper channel and the lower channel of the zipper by a triangle diaphragm in the pull head. Thus, track-shaped convex teeth on the lock bar are embedded into a channel-shaped groove to realize engagement. Convex teeth 4 on a handle are matched with a cell slot 5 on the lock bar to limit the natural opening of the zipper. The utility model has favorable positioning and sealing performance, can effectively prevent the wind, the dust and the water from entering by the zipper. The utility model serves as a normal zipper and is particularly suitable for occasions with high requirement to three prevention performance. The utility model is suitable for adopting plastic material and has the advantages of simple production process and low product cost.

Description

Rail-type zipper preventing against dust, wind and water

The utility model is a kind of rail mounted three anti-zips.

Existing commercially available zip, generally be to make with copper, aluminium alloy or nylon etc. to have concavo-convex miaow tooth or be that the convex annular tooth is on cotton yarn tape or chemical fibre band, the pull head of the oblique and two sides crimping of triangle is arranged in the middle of mixing again, and cingulum seals and opens with the advance and retreat of pull head during use.The shortcoming of this kind zip is a bad sealing, ventilative, permeable, saturating dirt.

The purpose of this utility model is the weak point that exists at existing zip, and three anti-zips of a kind of windproof, anti-permeable, permeation-proof dirt are provided.

Accompanying drawing has provided the specific embodiments that realizes the utility model purpose.

Fig. 1 is this zip structural front view;

Fig. 2 is this zip structure side view;

Fig. 3 is this zip pull head forward section view;

Fig. 4 is the local enlarged diagram of this zip bolt structural profile.

Embodiment to this zip is described in detail below in conjunction with accompanying drawing: it comprises by handle and the pull head 1 formed of guide way, the bolt 2 that is used to mesh, and the connecting band 3 that is connected mutually with bolt.The front portion of guide way is for binary channels up and down and be symmetrical structure, and a side of each passage leaves opening, and its cross section is approximate S-shaped.The rear portion of guide way is a single channel, and both sides are respectively left opening and are connected with the opening of front portion.Bolt and bar shape that respectively have " rail " and " road " identical by two shapes oppositely buckles engagement mutually and constitutes, and its " road " is Baltimore groove; Rail is and the double wedge of its engagement, be provided with one above this zip pull head 1 handle and protrude positioning tooth 4, above the bolt 2 and below be provided with equally distributed cell 5.

When this zip was used, last zip pull head was exerted pressure to entering on the pull head bolt in the lower channel by the triangle tabula in the pull head, the double wedge of bolt is embedded realize in the groove meshing.Handle on the pull head of engagement back is sagging, and the protrusion fixed teeth on the handle can enter in the mouth on the pull head.And be held in and realize the location on the cell above the bolt, open naturally to prevent zip.

After this zip closure, because tooth and groove and closely cooperate have good sealing effectiveness, can be windproof, water and micronic dust invaded by zip.

Claims

1, rail mounted three anti-zips, it comprises the pull head of being made up of handle and guide way (1), the bolt that is used to mesh (2), and the connecting band (3) that is connected mutually with bolt, it is characterized in that: the front portion of guide way is for binary channels up and down and be symmetrical structure, and a side of each passage leaves opening, and its cross section is approximate S-shaped, the rear portion of guide way is a single channel, and both sides are respectively left opening and are connected with the opening of front portion; Bolt and bar shape that respectively have rail and road identical by two shapes oppositely buckles engagement mutually and constitutes, and its road is a Baltimore groove, and rail is the double wedge with its engagement.

2, zip according to claim 1 is characterized in that: above pull head (1) handle positioning tooth (4) is set, bolt (2) above and below is provided with equally distributed cell (5).