CN201836548U

CN201836548U - Pipe

Info

Publication number: CN201836548U
Application number: CN2010205948559U
Authority: CN
Inventors: 叶先敏
Original assignee: 叶先敏
Current assignee: Fujian Botta Plastics Advanced Material Co., Ltd.
Priority date: 2010-11-05
Filing date: 2010-11-05
Publication date: 2011-05-18
Anticipated expiration: 2020-11-05

Abstract

The utility model discloses a pipe, which comprises a PE (polyethylene) inner tube and a surface layer wrapped outside the PE inner tube. The surface layer can be stripped off the PE inner tube. Since the pipe comprises the PE inner tube and the surface layer wrapped outside the PE inner tube, and the surface layer can be stripped off the PE inner tube, the surface layer can protect the PE inner tube from being damaged during construction, and thus the service life of the PE inner tube can not be affected. When the surface layer is stripped off the PE inner tube, the exposed PE inner tube can be welded directly without any treatment.

Description

Tubing

Technical field

The utility model relates to a kind of plastic pipe application, relates in particular to a kind of tubing.

Background technique

Plastic tube generally adopts PE (polyethylene) material to make, and PE is better flexible, but intensity is not as PVC (polymer of vinyl).Plastic tube generally is laid on underground, when laying because the edatope difference, may cause damage to pipe outer surface, 10% tubing when above that reaches wall thickness when damage just can not use, particularly current non-excavation laying The Application of Technology is had higher requirement to the quality of pipe outer surface.And tubing is to adopt single PE material to produce at present, according to water supply parameter request design wall thickness, in case outer surface damages, then can influence the working life of tubing in work progress.

Existing P E pipe generally adds 2% carbon black for solving anti-aging problem, and carbon black has when high temperature and separates out phenomenon, and this influences the sanitary index of tubing to a certain extent.Tubing generally adopts the welding manner butt joint simultaneously, needs before the welding that tubing weld oxide layer is carried out scraping and handles, and scraping is improper also may to influence welding quality.

The model utility content

The technical problem that the utility model mainly solves provides a kind of tubing, can play a protective role to pipe in the PE, improves the working life of pipe in the PE, and does not also need to handle before the welding.

For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of tubing is provided, comprises pipe in the PE and be coated on the outer periostracum that can peel off mutually with pipe in the described PE of pipe in the described PE.

Wherein, the material of described periostracum is PP material or PVC material or PB material.

Wherein, the thickness of described periostracum is 0.3mm～1.5mm.

Wherein, the cross section of pipe is rounded in the described PE.

The beneficial effects of the utility model are: the PE tubing that is different from prior art adopts single PE material to produce; the PE tube outer surface occurs easily damaging and influences the PE tubing situation in working life in work progress; the utility model tubing comprises pipe in the PE and is coated on the outer periostracum that can peel off mutually with pipe in the described PE of pipe in the described PE; described periostracum can be protected pipe in the PE; prevent that in work progress pipe in the PE is damaged and influences the situation in working life of pipe in the PE; periostracum described in the utility model can also be peeled off out from pipe in the PE; pipe can directly weld in the PE that exposes, and need not handle.

Description of drawings

Fig. 1 is the Facad structure schematic representation of the utility model tubing;

Fig. 2 is the structural representation that the periostracum of the utility model tubing is partly peeled off.

Embodiment

By describing technology contents of the present utility model, structure characteristics in detail, realized purpose and effect, give explanation below in conjunction with mode of execution and conjunction with figs. are detailed.

See also Fig. 1, Fig. 2, the utility model tubing, comprise pipe 10 in the PE and be coated on pipe in the described PE 10 outer can with pipe 10 periostracums of peeling off mutually 11 in the described PE.The material of described periostracum 11 is PP (polypropylene) material or PVC (PVC) material or PB (polybutylene) material.The thickness of described periostracum 11 is 0.3mm～1.5mm.

Described periostracum 11 is attached to by co-extrusion on the outer surface of pipe 10 in the described PE, and described periostracum 11 mainly carries out protective action to pipe 10 in the PE in work progress, and in case of necessity, described periostracum 11 can strip down from the outer surface of pipe 10 in the described PE.

In the present embodiment, pipe 10 can not add carbon black in the described PE.

The utility model tubing when producing, the melt stage co-extrusion of pipe 10 in die head in periostracum 11 and the PE, tubing manage 10 and can be avoided directly contacting with cooling water after the moulding in cooling stage PE, has reduced the generation of managing 10 internal stresss in the PE to a certain extent.Periostracum 11 can strip down from pipe 10 in the PE during tubing welding, and pipe 10 can directly weld in the PE that exposes, and does not need to carry out scraping and handles.

Pipe 10 adopts during through co-extrusion with periostracum 11 and depends on not exclusively bondingly in the PE, finishes the realization of integral product.

Product carries out the comprehensive detection assessment through indexs such as antipollution, peelable, welding, stress cracking, impact properties and is higher than existing product quality level.

The PE tubing that is different from prior art adopts single PE material to produce; the PE tube outer surface occurs easily damaging and influences the PE tubing situation in working life in work progress; the utility model PE tubing comprise pipe 10 in the PE and be coated on pipe in the described PE 10 outer can with pipe 10 periostracums of peeling off mutually 11 in the described PE; described periostracum 11 is made for PP or PVC or PB material; described periostracum 11 can be protected pipe 10 in the PE; prevent that in work progress pipe 10 in the PE is damaged and influences the situation in 10 working lifes of pipe in the PE; periostracum 11 described in the utility model can also be peeled off out from pipe 10 in the PE; pipe 10 can directly weld in the PE that exposes, and need not handle.

The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.

Claims

1. tubing is characterized in that: comprise pipe in the PE and be coated on the outer periostracum that can peel off mutually with pipe in the described PE of pipe in the described PE.

2. tubing according to claim 1 is characterized in that: the material of described periostracum is PP material or PVC material or PB material.

3. tubing according to claim 2 is characterized in that: the thickness of described periostracum is 0.3mm～1.5mm.

4. tubing according to claim 1 is characterized in that: the cross section of pipe is rounded in the described PE.