CN105225751B - High-flame-retardation zipper protection bushing of accurately controllable length - Google Patents
High-flame-retardation zipper protection bushing of accurately controllable length Download PDFInfo
- Publication number
- CN105225751B CN105225751B CN201510520062.XA CN201510520062A CN105225751B CN 105225751 B CN105225751 B CN 105225751B CN 201510520062 A CN201510520062 A CN 201510520062A CN 105225751 B CN105225751 B CN 105225751B
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- China
- Prior art keywords
- sleeve pipe
- strap
- zipper
- slide fastener
- metal
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Abstract
The invention provides a high-flame-retardation zipper protective bushing of accurately controllable length, suitable for the field of protective bushings. The zipper protective bushing comprises a bushing strap and an open zipper, the open zipper comprises a zipper strap and metal teeth, both the bushing strap and the zipper strap are formed by braiding base yarns Nomex registered of DuPont, and the bushing strap and the zipper strap are stitched via base yarns Nomex registered or sewing threads; the zipper strap comprises a braided strap and central threads, and the braided strap and central threads are formed by braiding base yarns Nomex registered independently; and each central thread is embedded with a metal wire, the central threads are braided on the braiding strap via base yarns Nomex registered, and the metal teeth are embedded in the central threads stably, precisely and uniformly. The bushing strap, the zipper strap, the central threads and the sewing threads are all made of the base yarns Nomex registered, the material consistency ensures high flame retardation of a product, special structure of the central threads ensures that the distance of metal teeth can be accurately controlled, and the zipper protective bushing of accurately controlled length can be produced.
Description
Technical field
The present invention relates to zipper technology field, the high fire-retardance slide fastener protection sleeve pipe of more particularly to a kind of length controllable precise.
Background technology
Slide fastener protection sleeve pipe is widely used in the arrangement and protection of cable wire harness in industry-by-industry.Slide fastener protect sleeve pipe and
Device electric power inside and/or fiber optic cables are rolled into a bunch of cables.All of slide fastener protection sleeve pipe all exists in the market
There is significant deficiency in fire protection flame retarding grade, in terms of raw material, there are many materials with high flame resistance available.It is poly-
Ethylene glycol terephthalate (PET) is the most widely used raw material that sleeve pipe is protected in slide fastener, but the slide fastener of PET material is protected
The flame retardant rating of protecting pipe can only achieve the substandard VW-1 grades of UL-1581, be than relatively low fire protection flame retarding grade, may only
Meet general application.And at present many commercial Applications require bunchs of cables can by the airspace of building, and other
The application scenarios for having high demands flame retardant rating.Airspace is a part for building, is promoted in the warm air-conditioning duct of confession
The system of air circulation.Technically, all tubings belong to airspace.North America fire safety rules and regulations device
VW-1 fire protection flame retarding grades slide fastener protection sleeve pipe in wire harness forbid installed in airspace or other require high fire-retardance etc.
The application scenarios of level, this slide fastener protection sleeve pipe for just strictly limiting VW-1 flame retardant ratings pass through in each floor of building, i.e.,
Make the wire harness in slide fastener protection sleeve pipe reach Plenum Rated (the highest fire-retardant rank of airspace application), meet logical
The requirement of wind space flame retardant rating, as the flame retardant rating of slide fastener protection sleeve pipe is not inconsistent standardization and forbids adopting.Accordingly
The application scenarios VW-1 flame retardant ratings for having high demands flame retardant rating protection sleeve pipe be also what is prohibitted the use of.
In addition, the zipper cloth belt and sleeve pipe strap of slide fastener protection sleeve pipe are produced using weaving, on zipper cloth belt
Metal-toothed installed by semiautomatic equipment, install metal-toothed when being precisely controlled for tooth pitch be to realize slide fastener protective case
The key factor that pipe can be produced by any precise length.The flame retardant rating of sleeve pipe is protected to improve slide fastener, it is therefore possible to use high resistant
Combustible material, but the new difficult problem again become by the tooth pitch control of metal-toothed.In addition, power cable would generally produce conductivity
With the electromagnetic interference of radioactivity, likewise, be also highly susceptible to the radiation effect in outside electromagnetic interference source, this electromagnetic interference pair
Cable itself and external environment produce harmful effect.
Accordingly, it would be desirable to develop a kind of new slide fastener protection sleeve pipe to adapt to and meet the application of main high-end industrial trade
Demand.
The content of the invention
The primary and foremost purpose of the present invention is to provide a kind of high fire-retardance slide fastener to protect sleeve pipe, it is intended to improves flame retardant rating, meets
Fire safety regulation, can be used for constructure ventilation space and other application scenarios for having high demands flame retardant rating, and can be with
Realize that casing length is accurately adjusted.
What the present invention was realized in:A kind of high fire-retardance slide fastener protection sleeve pipe of length controllable precise, including sleeve pipe strap
And open-type zipper, the open-type zipper includes zipper cloth belt and metal-toothed, and described sleeve pipe strap and zipper cloth belt are using Du
Nation (DuPont) companyRaw yarn braiding is formed, and the zipper cloth belt passes through Du Pont with described sleeve pipe strap
(DuPont) companyRaw yarn orSewing thread is sutured;The zipper cloth belt includes woven cloth band with
Heart line, the woven cloth band is using Du Pont (DuPont) companyRaw yarn braiding is formed, and the centrage is using Du
Nation (DuPont) companyRaw yarn braiding is formed and then is woven on the woven cloth band again;In the centrage
Be embedded with tinsel, make the metal-toothed it is stable accurate be embedded on the centrage and tooth pitch is uniform.
Sleeve pipe strap in the high fire-retardance slide fastener protection sleeve pipe that the present invention is provided, zipper cloth belt, centrage and sewing thread are all
UsingRaw yarn is raw material, and this 100% material concordance guarantees the high fire-retardance grade of product of the present invention, can
Airspace and other application scenarios for having high demands flame retardant rating for building, the slide fastener sleeve pipe in strict conformity with
The flame retardant test and certificate requirements of the substandard NFPA262 Steiner Tunnel tests of UL2024;Also, the special construction of centrage
Determine metal-toothed away from precision controlling, and then determine can produce any precise control of length slide fastener protection sleeve pipe.
Description of the drawings
Fig. 1 is structural representation of the high fire-retardance slide fastener protection sleeve pipe provided in an embodiment of the present invention in tiling position;
Fig. 2 is centerline structure detailed schematic provided in an embodiment of the present invention;
Fig. 3 is structure of the protection sleeve pipe of the high fire-retardance slide fastener containing screen layer provided in an embodiment of the present invention in tiling position
Schematic diagram;
Fig. 4 is structural representation of the high fire-retardance slide fastener protection sleeve pipe provided in an embodiment of the present invention in drawing position;
Fig. 5 is being drawn when high fire-retardance slide fastener protection sleeve pipe provided in an embodiment of the present invention is equipped with the bunch of cables of different cables
Close the structural representation of position.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
Implementing for the present invention is described in detail below in conjunction with specific embodiment:
It is to be understood that, the ratio of part or part shown in legend provided in an embodiment of the present invention is not to actual product
Product are limited, only for the structure of the present invention is clearly presented.
Refer to Fig. 1, the embodiment of the present invention provides a kind of high fire-retardance slide fastener and protects sleeve pipe 1, the arrangement as bunch of cables and
Protection, the high fire-retardance slide fastener protection sleeve pipe 1 mainly include sleeve pipe strap 2 and open-type zipper 3, and the open-type zipper 3 includes drawing
Chain strap 31 and metal-toothed 32, sleeve pipe strap 2 and zipper cloth belt 31 are using Du Pont (DuPont) companyRaw yarn
Braiding is formed, and zipper cloth belt 31 passes through Du Pont (DuPont) company with sleeve pipe strap 2Raw yarn orSewing thread suture to be formed can folding high fire-retardance slide fastener protection sleeve pipe 1, whereinRaw yarn orSewing thread is not shown.During use, sleeve pipe 1 is protected to be wrapped in the outside of bunch of cables 4 on high fire-retardance slide fastener,
Drawing open-type zipper 3.The bunch of cables 4 can be one or two in power cable and fiber optic cables.For the ease of
Illustrate, by " Du Pont (DuPont) companyRaw yarn " be referred to as "Raw yarn ", will " high fire-retardance slide fastener guarantor
Protecting pipe " is referred to as " slide fastener sleeve pipe ".
Further, open-type zipper 3 generally includes two symmetrical fastener chains, and which adoptsRaw yarn orSewing thread is sewn onto on sleeve pipe strap 2.Zipper cloth belt 31 includes woven cloth band and centrage 311, the woven cloth band
It is to adoptRaw yarn braiding is formed, and centrage 311 is also to adoptRaw yarn independently weaves and forms, Ran Houbian
It is woven on the woven cloth band, this ensure that the concordance of raw material.In addition, metal-toothed 32 is installed by semiautomatic equipment
Up, during cracking a joke, the precise control of the tooth pitch of metal-toothed 32 is the key for protecting sleeve pipe produce by any precise length
Link, if only withRaw yarn weaves centrage 311, as its hardness and tensile strength are not high enough, installs metal
Circular pitch deviation during tooth 32 can build up, due to tooth pitch it is uneven cannot smoothly folding or in the process of slide fastener folding damage
Bad metal-toothed 32, especially tooth of the requirement to smaller size of metal-toothed when the even more metal zip fasteners of small dimension such as 3# are produced
Away from precise control.This is to adoptingThe good control of the mechanical property of the centrage 311 of raw yarn braiding is proposed
Challenge.In order to solve this problem, tinsel technique of the centrage 311 in the embodiment of the present invention using innovation, in centrage
311 are embedded in tinsel 312, and tinsel 312 can be stainless steel silk or wire bundle.When centrage 311 is woven, adoptTinsel 312 is wrapped up wherein by raw yarn, is together woven into centrage 311, and the centrage 311 is to compare zipper cloth belt
The cylindricality wire harness of 31 thicker independent braidings, is woven on woven cloth band then along the length direction of zipper cloth belt 31,
Positioned at the edge of zipper cloth belt 31, for fixing metal-toothed 32.By cracking a joke, machine accurately plants metal-toothed 32 to own centre line
Above 311 31 side of zipper cloth belt, metal-toothed 32 is stable on centrage 311 and does not offset.So adoptRaw yarn 313 is woven into centrage 311 with tinsel 312, makes 311 hardness of the centrage after improvement and tensile strength
It is obviously improved, improves the strain property of centrage 311 well, the plant for making metal-toothed 32 stable is on centrage 311 and protects
Accurately tooth pitch control is held, such that it is able to be accurately controlled the tooth pitch of metal-toothed 32, it is often more important that any standard can be produced
Really the slide fastener of length protects sleeve pipe.
The sleeve pipe strap 2 of slide fastener sleeve pipe provided in an embodiment of the present invention 1, zipper cloth belt 31 are adoptedRaw yarn
Braiding, zipper cloth belt 31 are also to pass throughRaw yarn orSewing thread is sewn onto on sleeve pipe strap 2, this original
The selection of material guarantees that the slide fastener sleeve pipe 1 has high fire-retardance grade, meets the requirement of UL2024 standards, can be used for building
Airspace and other application scenarios for having high demands flame retardant rating;And, it is ensured that the uniformity of all raw material and drawing
The homogeneity of chain sleeve pipe 1, it is to avoid affect the flame retardant rating of whole slide fastener sleeve pipe 1 because portion of material is inconsistent, it is ensured that optimum resistance
Combustion property.The slide fastener sleeve pipe 1 of the embodiment of the present invention is fire-retardant in strict conformity with the substandard NFPA262 Steiner Tunnel tests of UL2024
Test and certificate requirements.In addition, using above-mentioned centrage, the tooth pitch of metal-toothed can be accurately controlled, and then production is taken the post as
The slide fastener protection sleeve pipe of meaning exact length, allows the length that the length of slide fastener protection sleeve pipe accurately produces 50 meters even more
It is long, it is also possible to make the slide fastener of minimal type.
Further, tinsel 312 is preferably in the center of centrage 311, it is also possible to be not at center,The number of yarns of raw yarn 313 is not limited, and is 18, or other rational quantity in figure.312 He of tinselThe diameter of raw yarn 313 can be with identical, it is also possible to different.
Specifically, metal-toothed 32 is accurately installed on centrage 311 by machine of cracking a joke, is cut further according to being actually needed
Zipper cloth belt 31 obtains different length, is manufactured into the accurate complete slide fastener of length by installing other metal parts.Further
With reference to Fig. 1, open-type zipper 3 includes two chains, wherein a chain includes zipper cloth belt 31, metal-toothed 32, above stops 33
With metal ferrule 34, another chain then include zipper cloth belt 31, metal-toothed 32, above only 33 and metal consent 35, slide block 36,
Pull head 37.Two symmetrical chains are made to constitute complete metal by the drawing of pull head 37 by socket 35, contact pin 34 and slide block 36
The smooth folding of slide fastener.
Further, in order to avoid the problem of electromagnetic interference, the set that can be formed in sleeve pipe strap 2 and open-type zipper 3
Screen layer 5 is set on the inside of pipe, and the screen layer 5 is adoptedRaw yarn orSewing thread is sutured on the inside of sleeve pipe,
And then ensure that sleeve pipe all material is consistent.Specifically, the screen layer 5 at least includes metallic shield net 51, the metallic shield net 51
It is made up of stainless steel silk, electroplating metal wire, tinsel or conductive fabric.Metallic shield net 51 can be monolayer, or
Multilamellar.EMI shielding effectiveness depends primarily on the frequency of electromagnetic radiation of mesh-density and interference source.According to practical application,
Slide fastener protection sleeve pipe inside cable can by electromagnetic interference shield net 360 degree wrap up.
Further, may be damaged by sewing needle during metallic shield net 51 is sewn onto slide fastener sleeve pipe 1, because
This can be placed on metallic shield net 51 with a metal tape 52, then adoptedRaw yarn orSewing
Line is sewn onto on slide fastener sleeve pipe 1 together, and after suture is good, metal tape 52 is placed in metallic shield net 51 near the side of zipper cloth belt 31.
The metal tape 52 can be made using copper product, such as by copper wire woven.Preferably, in actual 4 device of bunch of cables, metal
Gauze screen 51 answers electrical grounding.
Certainly, in the case where electromagnetic interference shield need not be carried out, it is also possible to be not provided with screen layer 5.
Sleeve pipe strap in high fire-retardance slide fastener protection sleeve pipe provided in an embodiment of the present invention, zipper cloth belt, centrage and seam
Line of threading all is adoptedRaw yarn is raw material, and this 100% material concordance guarantees high fire-retardance of product of the present invention etc.
Level.The special construction of centrage determine metal-toothed away from precision controlling, and then determine that can to produce length arbitrarily accurate
The slide fastener protection sleeve pipe of control.In addition, the slide fastener protection sleeve pipe in the embodiment of the present invention also has screen layer to the electricity inside sleeve pipe
Cable provides electromagnetic interference shield defencive function, to avoid cable itself and the external world from being subject to electromagnetic interference influence.
Above statement is only presently preferred embodiments of the present invention, and actual product is not limited to the illustrative in diagram.
The technical staff of sleeve pipe industry is protected to be aware that more than clear that exemplary detailed description can be carried out developing in slide fastener, it is all at this
Any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the protection model of the present invention
Within enclosing.
Claims (5)
1. a kind of high fire-retardance slide fastener of length controllable precise protects sleeve pipe, including sleeve pipe strap and open-type zipper, the opening
Formula slide fastener includes zipper cloth belt and metal-toothed, it is characterised in that described sleeve pipe strap and zipper cloth belt adopt Du Pont (DuPont)
CompanyYarn braiding is formed, and the zipper cloth belt is with described sleeve pipe strap by Du Pont (DuPont) companyYarn orLinear slit of threading is closed;The zipper cloth belt includes woven cloth band and centrage, the braiding
Strap is using Du Pont (DuPont) companyYarn braiding is formed, and the centrage is public using Du Pont (DuPont)
DepartmentYarn braiding is formed and then is woven on the woven cloth band again;The centrage has been embedded in tinsel,
Make the metal-toothed it is stable accurate be embedded on the centrage and tooth pitch is uniform.
2. high fire-retardance slide fastener as claimed in claim 1 protects sleeve pipe, it is characterised in that also include public using Du Pont (DuPont)
DepartmentYarn orLine of threading is sewn to the screen layer on the inside of sleeve pipe.
3. high fire-retardance slide fastener as claimed in claim 2 protects sleeve pipe, it is characterised in that the screen layer is included by rustless steel
The metallic shield net that silk, electroplating metal wire or tinsel are constituted.
4. high fire-retardance slide fastener as claimed in claim 3 protects sleeve pipe, it is characterised in that the screen layer is also included for protecting
The metal tape of the metallic shield net, the metal tape are arranged at the metallic shield net near the side of the zipper cloth belt.
5. high fire-retardance slide fastener as claimed in claim 4 protects sleeve pipe, it is characterised in that the metal tape and metallic shield Netcom
Cross Du Pont (DuPont) companyYarn orLine of threading is sewn on described sleeve pipe cloth band.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510520062.XA CN105225751B (en) | 2015-08-21 | 2015-08-21 | High-flame-retardation zipper protection bushing of accurately controllable length |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201510520062.XA CN105225751B (en) | 2015-08-21 | 2015-08-21 | High-flame-retardation zipper protection bushing of accurately controllable length |
Publications (2)
Publication Number | Publication Date |
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CN105225751A CN105225751A (en) | 2016-01-06 |
CN105225751B true CN105225751B (en) | 2017-04-19 |
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ID=54994647
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CN201510520062.XA Expired - Fee Related CN105225751B (en) | 2015-08-21 | 2015-08-21 | High-flame-retardation zipper protection bushing of accurately controllable length |
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Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106782828A (en) * | 2016-12-12 | 2017-05-31 | 北京慕成防火绝热特种材料有限公司 | A kind of cable protective sleeve for resisting hydrocarbon fire |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5391838A (en) * | 1993-05-25 | 1995-02-21 | The Zippertubing Co. | Flexible double electrical shielding jacket |
CN101821539A (en) * | 2007-08-23 | 2010-09-01 | 费德罗-莫格尔动力系公司 | Protective sleeve with knitted opening and method of construction |
CN201663972U (en) * | 2010-02-12 | 2010-12-08 | 南昌市汉霖工贸有限公司 | Conductive zipper tape |
CN201994607U (en) * | 2011-03-09 | 2011-09-28 | 红塔烟草(集团)有限责任公司 | Openable electric wire protection tube |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8707524B2 (en) * | 2011-11-01 | 2014-04-29 | Lien-Chou Wang | Double sided nylon sandwich mesh fabric zipper and slider assembly |
-
2015
- 2015-08-21 CN CN201510520062.XA patent/CN105225751B/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5391838A (en) * | 1993-05-25 | 1995-02-21 | The Zippertubing Co. | Flexible double electrical shielding jacket |
CN101821539A (en) * | 2007-08-23 | 2010-09-01 | 费德罗-莫格尔动力系公司 | Protective sleeve with knitted opening and method of construction |
CN201663972U (en) * | 2010-02-12 | 2010-12-08 | 南昌市汉霖工贸有限公司 | Conductive zipper tape |
CN201994607U (en) * | 2011-03-09 | 2011-09-28 | 红塔烟草(集团)有限责任公司 | Openable electric wire protection tube |
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CN105225751A (en) | 2016-01-06 |
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