CN202171987U - High flame retardant thermal shrinkable casing pipe - Google Patents
High flame retardant thermal shrinkable casing pipe Download PDFInfo
- Publication number
- CN202171987U CN202171987U CN2011202967745U CN201120296774U CN202171987U CN 202171987 U CN202171987 U CN 202171987U CN 2011202967745 U CN2011202967745 U CN 2011202967745U CN 201120296774 U CN201120296774 U CN 201120296774U CN 202171987 U CN202171987 U CN 202171987U
- Authority
- CN
- China
- Prior art keywords
- protecting pipe
- casing pipe
- thermal shrinkable
- flame
- high flame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The utility model relates to a high flame retardant thermal shrinkable casing pipe, comprising a thermal shrinkable casing pipe base pipe(1) and a solenoid-shaped flame retardation hot melt adhesive wire(2) arranged on the inner side of the thermal shrinkable casing pipe base pipe(1). By using the high flame retardant thermal shrinkable casing pipe of the utility model, the interior gas in the thermal shrinkable casing pipe can be exhausted completely and conveniently when the thermal shrinkable casing pipe is heated to shrink, thereby guaranteeing the safe use of the thermal shrinkable casing pipe.
Description
Technical field
The utility model belongs to the electric insulation product scope, relates in particular to a kind of high flame retardant pyrocondensation protecting pipe.
Background technology
In the electric insulation product, the pyrocondensation protecting pipe is generally used for the insulating protection of mesolow electric power cable and insulation, waterproof, the protection against the tide of communication cable bifurcation.There is air gap between cable junction and the pyrocondensation protecting pipe during for fear of sealing, thus on the inwall of pyrocondensation protecting pipe, scribble one deck PUR mostly, to carry out sealing protection.At present; Existing PUR is mostly through directly being coated with on the inwall that formula is coated on the pyrocondensation protecting pipe; When the pyrocondensation protecting pipe receives thermal contraction; Be coated on PUR on the pyrocondensation protecting pipe inwall and can hinder the eliminating of gas in the pyrocondensation protecting pipe, and then might cause that there is potential safety hazard in the junction in the actual motion, shortened sheath and electric wire useful life.
Summary of the invention
The utility model provides a kind of high flame retardant pyrocondensation protecting pipe, so that make the pyrocondensation protecting pipe when receiving thermal contraction, can the internal gas of pyrocondensation protecting pipe is easy to get rid of fully, thereby guarantee the safe in utilization of pyrocondensation protecting pipe.
The purpose of the utility model realizes through following technical scheme:
A kind of high flame retardant pyrocondensation protecting pipe comprises: pyrocondensation protecting pipe parent tube 1;
The inwall of pyrocondensation protecting pipe parent tube 1 is provided with the flame-retardant hot-melt tree lace 2 of solenoid shape.
Preferably, the pitch of the flame-retardant hot-melt tree lace 2 of corresponding solenoid shape is the width of 2～3 times of thermal resistance combustion melten gel lines 2.
Preferably, the width of flame-retardant hot-melt tree lace 2 is 2mm～3mm.
Technical scheme by above-mentioned the utility model embodiment provides can be found out; The flame-retardant hot-melt tree lace 2 of solenoid shape is set on the inwall of the utility model embodiment through pyrocondensation protecting pipe parent tube 1; Thereby make the pyrocondensation protecting pipe when receiving thermal contraction; The internal gas of pyrocondensation protecting pipe can be got rid of along the slit of solenoid shape flame-retardant hot-melt tree lace 2 easily, thereby guarantees the safe in utilization of pyrocondensation protecting pipe; Simultaneously; When further being heated to 2 thawings of flame-retardant hot-melt tree lace; The PUR that melts can be with the gap complete filling between cable junction and the high flame retardant pyrocondensation protecting pipe; And because flame-retardant hot-melt tree lace 2 has flame-retarding characteristic, thereby make the pyrocondensation protecting pipe can play better insulation, waterproof and seal protection effect.
Description of drawings
Fig. 1 is the structural representation of the high flame retardant pyrocondensation protecting pipe that the utility model provided.
Embodiment
To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; It is understandable that described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
To combine accompanying drawing that the utility model embodiment is done to describe in detail further below.
Embodiment one
As shown in Figure 1, a kind of high flame retardant pyrocondensation protecting pipe, its concrete structure can comprise: pyrocondensation protecting pipe parent tube 1;
The inwall of pyrocondensation protecting pipe parent tube 1 is provided with the flame-retardant hot-melt tree lace 2 of solenoid shape.
Wherein, flame-retardant hot-melt tree lace 2 can be coated on the inner surface of pyrocondensation protecting pipe parent tube 1 through spiral glue spreader of the prior art; The width of corresponding flame-retardant hot-melt tree lace 2 can be 2mm～3mm; This size generally is applicable to: the mode that the situation of diameter more than 28mm of pyrocondensation protecting pipe parent tube 1, the diameter of pyrocondensation protecting pipe parent tube 1 are established the flame-retardant hot-melt tree lace 2 of solenoid shape in generally not adopting less than 28mm.The pitch of the flame-retardant hot-melt tree lace 2 of corresponding solenoid shape is the width of 2～3 times of flame-retardant hot-melt tree laces 2, thereby guarantees manufacturing cost, and is easy to use again.
Particularly, corresponding pyrocondensation protecting pipe parent tube 1 can be polyolefin high flame retardant hard material of the prior art; The fire-retardant rank of the pyrocondensation protecting pipe parent tube 1 of this material can reach the UL224 standard, and (UL is the abbreviation of Underwriter Laboratories Inc., is translated into Underwriters Laboratory, and it is the most authoritative product safety test of the U.S. and certification authority; UL224 standard in the present specification is meant the UL224 standard the 5th edition that is published on December 15th, 1999) in VW-1 vertical combustion performance requirement; Hot strength can reach more than the 15MPa; Elongation at break can reach more than 400%; Therefore can prevent effectively that cable connector from receiving mechanical wear, improve its safety in utilization and life-span, reduce the follow-up maintenance cost.
Further, this flame-retardant hot-melt tree lace 2 can be coated on the inwall of pyrocondensation protecting pipe parent tube 1 through plant equipment of the prior art automatically; Using the high flame retardant pyrocondensation protecting pipe that the utility model provided that the cable connector place is carried out in the seal protection process; When this high flame retardant pyrocondensation protecting pipe receives thermal contraction; Gas in this high flame retardant pyrocondensation protecting pipe can be got rid of along the slit of solenoid shape flame-retardant hot-melt tree lace 2 easily, thereby guarantees the airtight quality of this high flame retardant pyrocondensation protecting pipe and safe in utilization; When further being heated to 2 thawings of flame-retardant hot-melt tree lace; The PUR that melts can be with the gap complete filling between cable junction and the high flame retardant pyrocondensation protecting pipe; And because flame-retardant hot-melt tree lace 2 has flame-retarding characteristic, thereby make the pyrocondensation protecting pipe can play better insulation, waterproof and seal protection effect.
It is thus clear that the realization of the utility model embodiment can make the pyrocondensation protecting pipe when receiving thermal contraction, can the internal gas of pyrocondensation protecting pipe be easy to get rid of fully, thereby guarantee the safe in utilization of pyrocondensation protecting pipe.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (3)
1. a high flame retardant pyrocondensation protecting pipe is characterized in that, comprising: pyrocondensation protecting pipe parent tube (1);
The inwall of pyrocondensation protecting pipe parent tube (1) is provided with the flame-retardant hot-melt tree lace (2) of solenoid shape.
2. high flame retardant pyrocondensation protecting pipe according to claim 1 is characterized in that, the pitch of the flame-retardant hot-melt tree lace (2) of said solenoid shape is the width of 2～3 times of flame-retardant hot-melt tree laces (2).
3. high flame retardant pyrocondensation protecting pipe according to claim 1 and 2 is characterized in that the width of said flame-retardant hot-melt tree lace (2) is 2mm～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202967745U CN202171987U (en) | 2011-08-15 | 2011-08-15 | High flame retardant thermal shrinkable casing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202967745U CN202171987U (en) | 2011-08-15 | 2011-08-15 | High flame retardant thermal shrinkable casing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202171987U true CN202171987U (en) | 2012-03-21 |
Family
ID=45830177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202967745U Expired - Lifetime CN202171987U (en) | 2011-08-15 | 2011-08-15 | High flame retardant thermal shrinkable casing pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202171987U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987628A (en) * | 2017-12-07 | 2018-05-04 | 大连联合高分子材料有限公司 | Temperature indication type fuel oil resistance thermal contraction double-walled pipe, its preparation method and a kind of cap-type optical cable connection box for protecting pyrocondensation seal form |
-
2011
- 2011-08-15 CN CN2011202967745U patent/CN202171987U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107987628A (en) * | 2017-12-07 | 2018-05-04 | 大连联合高分子材料有限公司 | Temperature indication type fuel oil resistance thermal contraction double-walled pipe, its preparation method and a kind of cap-type optical cable connection box for protecting pyrocondensation seal form |
| CN107987628B (en) * | 2017-12-07 | 2020-05-22 | 大连联合高分子材料有限公司 | Temperature indication type fuel oil heat shrinkage resistant double-wall pipe, preparation method thereof and cap type optical cable joint box in protection heat shrinkage sealing mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120321 |