JPH11201338A - Water supply pipe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a simple water supply pipe. SOLUTION: This water supply pipe consists of a high-density polyethylene resin conduit 1 formed by extrusion provided at the center, a shock absorbing cloth tape 2 fixed being closely and spirally wound around a periphery of the resin conduit 1, a reinforcement copper plate 3 fixed being closely and revered- spirally wound around a periphery of the shock absorbing cloth tape 2, and a corrosion-proofing straight chain low-density polyethylene layer 4 formed at a periphery of the reinforcement copper plate 3 by means of extrusion.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple water supply pipe for tap water, middle water, sewage, industrial water, and water sprinkling.

[0002]

2. Description of the Related Art Conventionally, steel pipes and cast iron pipes are well known for tap water, medium water, sewage, industrial water, and water sprinkling.

[0003]

However, conventionally known steel pipes and cast iron pipes are heavy, are subject to freezing, are inconvenient to handle, and are expensive.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a high-density polyethylene resin conduit 1 formed at the center by extrusion molding, and spirally tightly wound around the outer periphery of the resin conduit 1. And the reinforcing steel strip 3 tightly wound around the outer circumference of the buffering cloth tape 2 in an opposite spiral manner and fixed thereto, and extruding the outer circumference of the reinforcing steel strip 3 by extrusion molding. This is a water supply pipe composed of the formed anticorrosion linear low-density polyethylene layer.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is used for simple water supply for tap water, medium water, sewage, industrial water, water sprinkling, sewage, human waste transportation, fire extinguishing, air transportation, seawater intake, and sea bottom discharge. What is done
The embodiment will be described with reference to the drawings. Reference numeral 1 denotes a resin conduit provided at a central portion of a water supply pipe, which is formed by extrusion molding of high-density polyethylene. It is spirally wound and fixed, and the reinforcing steel strip 3 is spirally wound around the outer periphery and fixed similarly. The reinforcing steel strip 3 is formed in a plurality of layers as necessary. A linear low-density polyethylene layer 4 for corrosion protection is formed by extrusion on the outside of the reinforcing steel strip 3 spirally wound in this manner.

[0006]

According to the present invention, a resin conduit 1 is formed by extrusion molding of high-density polyethylene, a cushioning cloth tape 2 is spirally wound around the outer periphery thereof, and a reinforcing steel strip 3 is wound around the outer periphery thereof.
Is wound in the opposite spiral shape and fixed in the same manner. On the outside of the reinforcing steel strip 3 thus formed, a linear low-density polyethylene layer 4 for anticorrosion is formed by extrusion molding, which can be buried underground or can be arbitrarily used outdoors. It is laid at the site and used for water supply, medium water, sewage, industrial water, induction for watering, transportation of sewage and night soil, intake of seawater, and discharge from the seabed.

[0007]

Conventionally known steel pipes and cast iron pipes are heavy in weight, are subject to freezing, are inconvenient to handle, and are expensive. However, the present invention provides a resin conduit 1 made of high-density polyethylene formed by extrusion and provided at a central portion, and a cushioning cloth tape 2 helically tightly wound around the resin conduit 1 and fixed. And a reinforcing steel strip 3 tightly wound around the outer periphery of the cushioning cloth tape 2 in a tightly wound manner, and a linear low-density anticorrosion formed by extrusion on the outer circumference of the reinforcing steel strip 3. Since this is a water supply pipe composed of a polyethylene layer 4, a high-density polyethylene resin conduit 1 formed by extrusion molding is provided at the center and water is supplied by this.
It is lighter and cheaper than a cast pipe, and is easy to handle because it can be easily bent. The reinforcing steel strip 3 is wound around the outer circumference of the resinous pipe 1 via the cushioning cloth tape 2 spirally wound. Since the reinforcing steel strip 3 is wound and bent, the important resin conduit 1 is not damaged, and the winding of the reinforcing steel strip 3 makes the entire pipe robust, and the reinforcing steel strip 3 Since the linear low-density polyethylene layer 4 for anticorrosion is provided on the outer periphery, it is extremely resistant to abrasion, and is extremely resistant to cold compared to other materials. Even if it is laid by bending, the occurrence of cracks is very small. In addition, since the anticorrosion linear low-density polyethylene layer 4 is provided on the outer periphery of the reinforcing steel strip 3 by extrusion molding, the most difficult coating of the anticorrosion linear low-density polyethylene layer 4 is most easily and easily performed. Has an effect.

[Brief description of the drawings]

FIG. 1 is a perspective view of a high-density polyethylene resin conduit.

FIG. 2 is a perspective view in which a buffer cloth tape is wound around a resin conduit.

FIG. 3 is a perspective view in which a reinforcing steel strip is wound around the outer periphery of the cushioning cloth tape.

FIG. 4 is a perspective view in which the outer periphery is covered with a linear low-density polyethylene layer.

FIG. 5 is a sectional view of the present application.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Resin conduit, 2 ... Cushion cloth tape, 3 ... Reinforcing steel strip, 4 ... Corrosion-proof linear low-density polyethylene layer.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kaoru Goto 2-10-5 Ryogoku, Sumida-ku, Tokyo Inside Mitsui Kinzoku Engineering Co., Ltd.

Claims (1)

[Claims] 1. A resin pipe 1 made of high-density polyethylene formed by extrusion and provided at a central portion, and a cushioning cloth tape 2 fixed by being spirally tightly wound around the outer circumference of the resin pipe 1. A reinforcing steel strip 3 tightly wound around the outer periphery of the cushioning cloth tape 2 in a tightly spiral manner, and a linear low-density anticorrosion coating formed on the outer circumference of the reinforcing steel strip 3 by extrusion molding. A water pipe consisting of a polyethylene layer.