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Watertight zip fastener

A watertight zipper and sprocket technology, applied in the field of zippers and watertight zippers, can solve the problems of zipper damage, easy falling off of inner sprockets, easy displacement of outer sprockets, etc., to achieve stable and reliable sealing performance, reliable sealing performance and service life. Guaranteed effect

Inactive Publication Date: 2008-01-09
王富石
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, during the use of this kind of watertight zipper, the outer chain teeth are easy to shift, and the inner chain teeth are easy to fall off, which will damage the zipper.

Method used

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Examples

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Embodiment Construction

[0023] Referring to FIG. 1 , the present invention is a watertight zipper mainly composed of a head I1 , a head II4 , a sprocket belt 2 and a slider 3 .

[0024] As shown in Figures 2 and 3, the sprocket belt 2 is composed of upper and lower pairs of sprockets 7 and a middle pair of sprocket belts 8 . First of all, use nylon, polyamide, polyethylene and other synthetic resin single fibers to make linear ring-shaped chain teeth 7, and use a core wire 11 to pass through and fill in the chain teeth 7; the chain belt 8 has two upper and lower parts. A layer of sealing tape 9 made of soft sealing material is sandwiched between the upper and lower layers of chain belts 8, and the three layers are pressed together; the legs (middle) of the chain teeth 7 are sewn with sewing thread 10 On the surfaces of the upper chain belt 8 and the lower chain belt 8, the chain tooth belt 2 of the slide fastener is formed. Then, divide the upper and lower pairs of sprocket belts to the left and rig...

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Abstract

The present invention relates to a watertight zipper. It is mainly used for opening and closing full-closed or semi-closed inlet and outlet of flexible container for fluid transportation, protective clothing, diving suit, heat-insulating life-saving garment, underwater sealed container and others. It includes a zipper tape, and is characterized by that the described zipper tape is formed from upper and lower two pairs of teeth and intermediate a pair of zipper tapes, the described zipper tape has upper and lower two layers, between said upper and lower two layers of zipper tape a layer of sealing tape is included.

Description

technical field [0001] The invention relates to a slide fastener, in particular to a watertight slide fastener. It is mainly used in fully enclosed or semi-enclosed import and export of flexible containers for fluid transportation, protective clothing, diving suits, thermal insulation and rescue suits, water walking balls, high-pressure first aid pressurized bags, underwater wind tunnels, underwater sealed containers, etc. Toggle the function on and off. It belongs to the technical field of hardware accessories. Background technique [0002] Before the present invention was made, the watertight zipper structure used in flexible containers for fluid transport, protective clothing, diving suits, thermal insulation and lifesaving suits, water walking balls, high-pressure emergency booster bags, underwater wind tunnels, and underwater sealed containers in the past As shown in Figures 5 and 6: the rubber sealing belt 9 and the copper alloy "I" type inner chain teeth 102 are tig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A44B19/10A44B19/32A44B19/34A44B19/40A44B19/42
Inventor 王富石
Owner 王富石
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