CN2447602Y

CN2447602Y - Compound water tube

Info

Publication number: CN2447602Y
Application number: CN 00251796
Authority: CN
Inventors: 陈国济
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-09-30
Filing date: 2000-09-30
Publication date: 2001-09-12
Anticipated expiration: 2010-09-30

Abstract

The utility model relates to a composite water pipe. The composite water pipe is mainly composed of an outer layer plastic pipe and an inner layer stainless steel pipe. The inner diameter of the outer layer plastic pipe is slightly larger than the outer diameter of the inner layer stainless steel pipe. The utility model has the advantage that the composite water pipe can not generate any pollution to tap water.

Description

A kind of composite water pipe

The utility model relates to a kind of composite pipe.

Existing composite water pipe generally constitutes by three layers, and skin is that plastic cement pipe, internal layer are that Stainless Steel Tube, mesosphere are binding agents.The employing inner layer stainless steel tube can guarantee to carry tap water swimmingly under high hydraulic pressure and not break; also avoided simultaneously the pollution of corrosion to tap water; the outer higher plastic cement pipe of chemical stability that adopts; can protect inner layer stainless steel tube to avoid the corrosion of extraneous soda acid; though this kind composite water pipe has above-mentioned advantage; but also produced such problem simultaneously; because the binding agent layer is arranged; between tube and tube by connected member in conjunction with the time, the binding agent of composite pipe end can be exposed to and pollute tap water in the tap water.

Goal of the invention of the present utility model is to provide a kind of can not produce the composite pipe of any pollution to tap water.

The utility model is achieved in that it mainly is to form at inner layer stainless steel tube outer wall inclusion plastic cement pipe.

But at plastic cement pipe outer wall inclusion one Stainless Steel Tube.

Here, Stainless Steel Tube also can be an aluminum pipe.

Here, the outer wall surface of Stainless Steel Tube is pit shape or striated, to increase the frictional force between Stainless Steel Tube and plastic cement pipe, can never allow Stainless Steel Tube skid off in the plastic cement pipe, and does not have a bit relaxing.

Compared with the prior art the utility model owing to there is not the binding agent layer, therefore, do not have and can produce the advantage of any pollution to tap water.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the utility model embodiment 2 a structural representation.

Now in conjunction with the accompanying drawings and embodiments the utility model is described in further detail:

As shown in Figure 1, the utility model mainly is made of outer plastic cement pipe (pvc pipe) 1, inner layer stainless steel tube 2, and the internal diameter of outer plastic cement pipe 1 external diameter than Stainless Steel Tube 2 slightly is little, and the outer wall surface of Stainless Steel Tube 2 is provided with pit 4.As shown in Figure 2, at outer plastic cement pipe (pvc pipe) but 1 outer wall inclusion one Stainless Steel Tube 3 destroy to protect outer plastic cement pipe 1 to avoid foreign object.

Because outer plastic cement pipe 1 self has certain telescopic resilience, like this, when manufacturing, Stainless Steel Tube and plastic cement pipe box lump together, and the plastic cement inner tube wall closely is bonded together with Stainless Steel Tube under the compressing of Stainless Steel Tube outer wall.

Here, the thickness of outer plastic cement pipe (pvc pipe) 1 can be 1.5～2.95mm, also can be 4.1～12mm.

Stainless Steel Tube can be substituted by aluminum pipe, and its wall thickness can be 0.1～0.295mm, also can be 0.41～0.8mm.

Claims

1, a kind of composite water pipe is characterized in that mainly being made of outer plastic cement pipe, inner layer stainless steel tube.

2, composite water pipe according to claim 1, it is characterized in that can the inclusion Stainless Steel Tube at the outer wall of outer plastic cement pipe, also can the inclusion aluminum pipe.

3, composite water pipe according to claim 1 is characterized in that the outer wall surface of Stainless Steel Tube can be the pit shape, also can be striated.

4, composite water pipe according to claim 1 is characterized in that outer plastic cement pipe is a pvc pipe, and thickness can be 1.5～2.95mm, also can be 4.1～12mm.

5, composite water pipe according to claim 1 is characterized in that inner layer steel pipe can be a Stainless Steel Tube, also can be aluminum pipe, and the thickness of tube wall can be 0.1～0.295mm, also can be 0.41～0.8mm.