CN201081977Y

CN201081977Y - Waterproof zipper

Info

Publication number: CN201081977Y
Application number: CNU2007200412399U
Authority: CN
Inventors: 王富石
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-30
Filing date: 2007-07-30
Publication date: 2008-07-09
Anticipated expiration: 2017-07-30

Abstract

The utility model relates to a water-tight zipper, mainly used for opening and closing the fully enclosed or semi enclosed inlet and outlet of a flexible container for fluid conveyance, a protective clothing, a diving suit, a heat preservation immersion suit, an on water walking ball, a first aid high pressure pressurization bag, an under water wind tunnel, an under water sealed container and the other articles. The utility model, which comprises a chain teeth belt (2), is characterized in that: the chain teeth belt (2) is composed of an upper and a lower chain tooth (7) and a pair of chain belt (8). A core thread (11) threads through the chain teeth (7). The chain belt (8) has an upper and a lower layer, between which a sealing tape (9) is positioned. The chain teeth (7) are correspondently sewed on the surfaces of the upper and lower chain belt (8) by a sewing thread (10). The utility model has the advantages of large horizontal pulling force, relatively great sealing pressure, non replacement and chain teeth falling off and long service life.

Description

Watertight zip fastener

Technical field

The utility model relates to a kind of slide fastener, especially relates to a kind of watertight zip fastener.Be mainly used in flexible container, protective garment, diving dress, heat insulating life saving clothing for use, walking ball waterborne, high pressure first aid pressurization bag, the opening and closing effect of totally-enclosed or semi-enclosed import and export of wind-tunnel, underwater sealing container etc. under water of fluid transport.Belong to the Hardware fitting technical field.

Background technology

Before the utility model is made, be used in the past the flexible container, protective garment, diving dress, heat insulating life saving clothing for use, walking ball waterborne, high pressure first aid pressurization bag of fluid transport, under water wind-tunnel, underwater sealing container etc. the watertight zip fastener structure as illustrated in Figures 5 and 6: be that tightly obvolvent is together rubber seal tape 9 and the interior sprocket 102 of copper alloy " worker " type by the outer sprocket 101 of copper alloy " U " type, and be arranged in the chain cingulum by tooth pitch together, left and right two same chain cingulums, a slide fastener with sealing property is formed by the slider of zipper fastener drawing in 1/2 the tooth position that misplaces.The A face of left and right outer sprocket is mutually band 9 back crimps, and the band stress release forms two sealing zones, reaches the sealing effectiveness of watertight zip fastener.The defective of above-mentioned watertight zip fastener is:

1, this slide fastener after forming and relying on outer sprocket 101 flow of metal moulding fully is fixed together band 9 and interior sprocket 102.Slide fastener is when bearing certain horizontal drawing power, and certain elastic deformation can take place the outer sprocket of metal, and it is big that its U-shaped opening becomes, rubber seal tape 9 and in sprocket 102 from become big U-shaped opening, deviate from, slide fastener is collapsed out.So the horizontal horizontal drawing power of this slide fastener is less, sealing load is also lower.

2, rely on outer sprocket flow of metal to reach because this zipper sprocket is fixing, its location relies on the clamping degree of the outer sprocket of U-shaped and realizes with the coefficient of friction of rubber seal tape.So this watertight zip fastener, in use, outer sprocket easily is shifted, and interior sprocket easily comes off, and slide fastener is damaged.

3, because the inside and outside sprocket of this slide fastener is a metal structure, slide fastener in use, crooked R can not be too little, can not arbitrarily crooked, deflection, can not unfold, otherwise the slide fastener damage.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of horizontal drawing power big, and sealing load is higher, sprocket can not produce and move the watertight zip fastener that draws and fall tooth phenomenon, long service life.

The purpose of this utility model is achieved in that a kind of watertight zip fastener, comprises the chain cingulum, it is characterized in that: described chain cingulum is made up of upper and lower two pairs of sprockets and middle a pair of chain belt,

There is a heart yearn to pass in the described sprocket;

Described chain has upper and lower two layers, inserts and puts one deck band between upper and lower two layers of chain belt;

Described sprocket is sewn to the surface of corresponding upper strata chain belt and lower floor's chain belt with sewing thread.

The utility model watertight zip fastener, left and right two sealing surfaces that the shape of described band matches are designed to spill and convex respectively.

Compare with existing watertight zip fastener, the utlity model has following advantage:

1, the utility model on the one hand, can make sprocket be fixed on firmly on the chain belt by sprocket is sewn on the chain belt of upper strata with sewing thread, and laterally horizontal drawing power is very big, is 3～5 times of watertight zip fastener before; Sealing load is also higher; On the other hand, sprocket can not produce displacement and fall the tooth phenomenon, is effectively guaranteed service life.

2, the utility model is established band by folder between upper and lower two layers of chain belt, and its sealing property is reliable and stable, and no matter slide fastener bending how or deflection can not influence sealing and service life.

3, the utility model is designed to the concave, convex face that shape cooperatively interacts by the sealing surface with the chain cingulum, makes sealing property more reliable.

Description of drawings

Fig. 1 is the Facad structure schematic diagram of the utility model watertight zip fastener.

Fig. 2 is the chain cingulum Facad structure schematic diagram of the utility model watertight zip fastener.

Fig. 3 is the A-A cut-away view of Fig. 2.

Fig. 4 draws back schematic diagram for the seal of the utility model watertight zip fastener.

Fig. 5 is the Facad structure schematic diagram of watertight zip fastener in the past.

Fig. 6 is the B-B cut-away view of Fig. 5.

Among the figure: end socket I1, chain cingulum 2, pull head 3, end socket II4, wire loop 5, draw ring 6, sprocket 7, chain belt 8, band 9, sewing thread 10, heart yearn 11, sealing surface 12, outer sprocket 101, interior sprocket 102.

The specific embodiment

Referring to Fig. 1, the utility model is a kind of watertight zip fastener, mainly is made up of end socket I1, end socket II4, chain cingulum 2 and pull head 3.

As Fig. 2 and 3, described chain cingulum 2 is made up of upper and lower two pairs of sprockets 7 and middle a pair of chain belt 8.At first, make orthoscopic cast sprocket 7, pass, tamp with a heart yearn 11 in the sprocket 7 with synthetic resin ultimate fibres such as nylon, polyamide, polyethylene; Described chain belt 8 has upper and lower two layers, inserts and puts the band 9 that one deck is made by soft encapsulant between upper and lower two layers of chain belt 8, and three laminations are lumped together; Sprocket 7 shanks (centre) are sewn to the surface of upper strata chain belt 8 and lower floor's chain belt 8 with sewing thread 10, thereby form the chain cingulum 2 of slide fastener.Then, about two pairs of chain cingulums divide up and down,, connect wire loop 5, cross-under draw ring 6 on the wire loop 5 on the described pull head 3 with pull head 3 drawings.End socket I1 and end socket II4 are fixed together slide fastener two and chain belt.Complete watertight zip fastener of final formation.

Referring to Fig. 4, left and right two sealing surfaces that the utility model can match band 9 shapes in the middle of upper and lower two layers of chain belt were designed to form spill and the convex that matches in 12 minutes in addition.

Claims

1. a watertight zip fastener comprises chain cingulum (2), it is characterized in that: described chain cingulum (2) is made up of upper and lower two pairs of sprockets (7) and middle a pair of chain belt (8),

There is a heart yearn (11) to pass in the described sprocket (7);

Described chain belt (8) has upper and lower two layers, inserts and puts one deck band (9) between upper and lower two layers of chain belt (8);

Described sprocket (7) is sewn to the surface of corresponding upper strata chain belt (8) and lower floor's chain belt (8) with sewing thread (10).

2. a kind of watertight zip fastener according to claim 1 is characterized in that: left and right two sealing surfaces (12) that the shape of described band (9) matches are designed to spill and convex respectively.