CN203297784U - Composite double-resisting flexible pipe - Google Patents
Composite double-resisting flexible pipe Download PDFInfo
- Publication number
- CN203297784U CN203297784U CN2013203396463U CN201320339646U CN203297784U CN 203297784 U CN203297784 U CN 203297784U CN 2013203396463 U CN2013203396463 U CN 2013203396463U CN 201320339646 U CN201320339646 U CN 201320339646U CN 203297784 U CN203297784 U CN 203297784U
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- Prior art keywords
- composite
- flexible pipe
- fire
- bed
- inflaming retarding
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- Expired - Fee Related
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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a plastic flexible pipe, in particular to a flexible pipe with the anti-static and inflaming retarding surface, and belongs to the technical field of mining pipes. The composite double-resisting flexible pipe comprises an inflaming retarding soft material layer and a strengthening rib, wherein the inflaming retarding soft material layer is made of inflaming retarding soft polyvinyl chloride, and the strengthening rib is made of hard polyvinyl chloride and is arranged inside the inflaming retarding soft material layer. An outer double-resisting composite layer is arranged on the outer surface of the inflaming retarding soft material layer. An inner double-resisting composite layer is arranged on the inner surface of the inflaming retarding soft material layer. The composite double-resisting flexible pipe meets the requirements for preventing static electricity and inflaming under a coal mine, the fusing performance is extremely good, and forming is easy. By means of the hard polyvinyl chloride strengthening rib, the integral strength is good, the loading capacity is strong, and the occurrence that the strengthening rib is separated from the inflaming retarding soft material layer due to the environmental changes is avoided, and the composite double-resisting flexible pipe is light in weight and easy to transport and can be connected with other pipelines easily.
Description
Technical field
The utility model relates to a kind of plastic flexible pipe, relates in particular to a kind of antistatic surface, fire-retardant flexible pipe, belongs to the pipe material for coal mine technical field.
Background technique
Static can bring huge hidden danger to the colliery safety in production, and under coal mine, the sparkover of static, become one of burning things which may cause a fire disaster that causes fire, and the blast or the fire that are caused by static discharge happen occasionally, so down-hole prevention electrostatic discharge spark seems very important.The plastic flexible pipe that uses under coal mine must meet " MT181-2005 plastic pipe for coal mine Safety Inspection standard ", namely must meet antistatic, fire-retardant requirement.Original plastic flexible pipe such as patent No. CN102032400A have announced the two anti-flexible pipes of a kind of PVC＝polyvinyl chloride, comprise flexible PVC and the framework layer that is embedded in described flexible PVC, described framework layer by unplasticised PVC runner as framework layer, add anti-static agent and fire retardant in flexible PVC, strengthened the antistatic and flame retardant property of flexible pipe.This patent has reached fire-retardant, the antistatic hose standard of using under the coal mine.But its deficiency is, can cause its fusion degradation after adding anti-static agent in flexible PVC, easy-formation not, and in practical application, the flexible pipe weld line strength is not high.
The model utility content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of Composite Double anti-flexible pipe, on the basis that meets usage requirement under coal mine, improve the fusion performance, strengthen weld line strength.
The anti-flexible pipe of Composite Double described in the utility model, the enhancing muscle that comprises the fire-retardant soft bed of material made by fire-retardant soft PVC, made by rigid polyvinyl chloride, strengthening muscle is placed in the fire-retardant soft bed of material, fire-retardant soft bed of material outer surface arranges outer two anti-composite bed, and fire-retardant soft bed of material internal surface arranges interior two anti-composite bed.
The anti-flexible pipe of Composite Double is four-layer structure, and inner and outer surface is two anti-composite beds, can reach colliery underground flame retardant, antistatic usage requirement, and flame retardant material layer heat fusion is good, and formability is good, and fusion intensity is high.Rigid polyvinyl chloride strengthens muscle and has strengthened the ring stiffness of flexible pipe, makes flexible pipe not yielding, and owing to strengthening muscle and flame retardant material layer, is all the PVC＝polyvinyl chloride material, has consistent thermal coefficient of expansion and creep rate, makes both be difficult for throwing off.
Described outer two anti-composite beds, interior two anti-composite beds are respectively fire-retardant, anlistatig two anti-soft PVC layer.
The anti-flexible pipe of Composite Double is entwined by profile strip.
Described profile strip comprises straight first paragraph, the second segment that has a down dip and straight the 3rd section to the right, whole similar zigzag, straight first paragraph left end is inclined-plane, gradient is corresponding with second segment right side outer surface gradient, straight the 3rd section right-hand end is inclined-plane, and gradient is corresponding with second segment left inner surface gradient.
Described profile strip first paragraph upper surface is outer two anti-composite bed, the 3rd section lower surface is interior two anti-composite bed, be the fire-retardant soft bed of material between outer two anti-composite bed and interior two anti-composite beds, strengthen muscle and be arranged on the second segment intermediate portion, strengthen the muscle cross section and be circle, ellipse or the shape such as square.
During moulding, after profile strip winds with one circuit, initial first paragraph left end and the outer surface fusion of corresponding profile strip second segment right side, the 3rd section upper surface fusion of initial first paragraph lower surface and corresponding profile strip, form first fusion face, profile strip constantly is wound around formation tubing, because the fusion face overwhelming majority is flame-retardant flexible PVC＝polyvinyl chloride material, the fusion performance is good, and intensity is high, only there are the two anti-polyvinyl chloride layer fusion intensity of small part lower slightly, but do not affect overall performance.
The beneficial effect that the utility model compared with prior art has is:
The anti-flexible pipe of this Composite Double meets antistatic under coal mine, fire-retardant requirement, and the fusion performance is fabulous, and moulding is easy; Adopt rigid polyvinyl chloride to strengthen muscle, bulk strength is high, and bearing capacity is strong, avoids environmental change to cause and strengthens muscle and fire-retardant soft bed of material disengagement; Lightweight, easy transportation, easily with other pipelines, be connected.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the profile strip schematic cross-section.
In figure: 1, outer two anti-composite bed; 2, the fire-retardant soft bed of material; 3, strengthen muscle; 4, interior two anti-composite bed.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1 and Figure 2, the enhancing muscle 3 that the utility model embodiment comprises the fire-retardant soft bed of material 2 made by fire-retardant soft PVC, made by rigid polyvinyl chloride, strengthening muscle 3 is placed in the fire-retardant soft bed of material 2, the fire-retardant soft bed of material 2 outer surfaces arrange outer two anti-composite bed 1, the fire-retardant soft bed of material 2 internal surfaces arrange interior two anti-composite bed 4, and outer two anti-composite beds 1, interior two anti-composite beds 4 are respectively fire-retardant, anlistatig two anti-soft PVC layer.
The utility model is embodiment be entwined by profile strip, profile strip comprises straight first paragraph, the second segment that has a down dip and straight the 3rd section to the right, profile strip first paragraph upper surface is outer two anti-composite bed 1, the 3rd section lower surface is interior two anti-composite bed 4, be the fire-retardant soft bed of material 2 between outer two anti-composite bed 1 and interior two anti-composite bed 4, strengthen muscle 3 and be arranged on the second segment intermediate portion.
During moulding, after profile strip winds with one circuit, initial first paragraph left end and the outer surface fusion of corresponding profile strip second segment right side, the 3rd section upper surface fusion of initial first paragraph lower surface and corresponding profile strip, form first fusion face, profile strip constantly is wound around formation tubing, because the fusion face overwhelming majority is flame-retardant flexible PVC＝polyvinyl chloride material, the fusion performance is good, and intensity is high, only there are the two anti-polyvinyl chloride layer fusion intensity of small part lower slightly, but do not affect overall performance.
Claims (5)
1. anti-flexible pipe of Composite Double, it is characterized in that: the enhancing muscle (3) that comprises the fire-retardant soft bed of material (2) made by fire-retardant soft PVC, made by rigid polyvinyl chloride, strengthening muscle (3) is placed in the fire-retardant soft bed of material (2), the fire-retardant soft bed of material (2) outer surface arranges outer two anti-composite bed (1), and the fire-retardant soft bed of material (2) internal surface arranges interior two anti-composite bed (4).
2. the anti-flexible pipe of Composite Double according to claim 1 is characterized in that: described outer two anti-composite beds (1), interior two anti-composite beds (4) are respectively fire-retardant, anlistatig two anti-soft PVC layer.
3. the anti-flexible pipe of Composite Double according to claim 1, it is characterized in that: the anti-flexible pipe of Composite Double is entwined by profile strip.
4. the anti-flexible pipe of Composite Double according to claim 3 is characterized in that: described profile strip comprises straight first paragraph, the second segment that has a down dip and straight the 3rd section to the right.
5. the anti-flexible pipe of Composite Double according to claim 4, it is characterized in that: described profile strip first paragraph upper surface is outer two anti-composite bed (1), the 3rd section lower surface is interior two anti-composite bed (4), be the fire-retardant soft bed of material (2) between outer two anti-composite bed (1) and interior two anti-composite bed (4), strengthen muscle (3) and be arranged on the second segment intermediate portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203396463U CN203297784U (en) | 2013-06-13 | 2013-06-13 | Composite double-resisting flexible pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203396463U CN203297784U (en) | 2013-06-13 | 2013-06-13 | Composite double-resisting flexible pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203297784U true CN203297784U (en) | 2013-11-20 |
Family
ID=49573791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203396463U Expired - Fee Related CN203297784U (en) | 2013-06-13 | 2013-06-13 | Composite double-resisting flexible pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203297784U (en) |
-
2013
- 2013-06-13 CN CN2013203396463U patent/CN203297784U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20180613 |