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Pipe connector

A technology for pipe joints and connecting parts, applied in the field of pipe joints, can solve the problems of time-consuming, complicated operation, troublesome and other problems, and achieve the effects of ensuring insertability, improving waterproof performance, and simple continuous operation.

Inactive Publication Date: 2007-10-10
KYOWA RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the illustrated example is a joint of different types of pipes, it is sufficient to carry out the above-mentioned waterproof structure on one side only. However, in the case of straight pipe joints, waterproof structures must be formed at both ends, etc. Types of waterproofing in multiple locations
As a result, the work will be more complicated, time-consuming, and labor-intensive

Method used

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Examples

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Embodiment Construction

[0021] Next, an embodiment of the present invention will be described with reference to the drawings.

[0022] Fig. 1 is a cross-sectional view of a pipe joint 1, which is used to connect as a pipe body provided with a spiral protrusion 2

[0023] The synthetic resin corrugated tube 2 of a and the synthetic resin tube 3 without protrusions are made of rubber. However, it may be formed with synthetic rubber or natural rubber, or rubber in which synthetic rubber and natural rubber are mixed together. Further, on the inner surface of the connecting portion 4 for connecting the synthetic resin corrugated tube 2, an inflatable body 5 that swells by absorbing water is integrally formed.

[0024] The expansion body 5 is composed of a non-woven fabric, a mixture of a superabsorbent resin and a thermoplastic resin. Since the forming temperature is relatively high, fibers with good heat resistance such as polyethylene terephthalate (PET) should be used for the above-mentioned nonwoven...

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Abstract

The present invention relates to the tube-connector made of a synthetic resin or rubber for connecting the tubes, which protect the electric wires or cables buried under the earth, wherein on the surface facing the tubes in the connecting part to connect the end part of the tubes after being inserted therein, there is formed an expanding body which swells absorbing water, thus providing for a very easy connecting operation and also water-proof properties.

Description

technical field [0001] The present invention relates to pipe joints for connecting pipes for protection such as wires or cables. Background technique [0002] Since the pipe body is buried underground, it needs to be waterproof. Therefore, isolation and waterproofing as shown in Figure 5 must be applied between the pipe joint and the pipe body. 5 shows a joint 101 of various kinds of pipes made of synthetic rubber. First, a corrugated synthetic resin pipe 102 provided with a helical protrusion 102a on the peripheral surface is screwed into one side of the pipe joint 101. Then, the pipe 103 which is not provided with a protrusion on the peripheral surface is inserted into the other side of the pipe joint 101 and fastened with the band 104 . Next, the sealing tape 105 is pasted and wound on the corrugated pipe 102 side of the pipe joint 101, the watertight protection tape 106 is firmly wound thereon, and the winding end portion of the watertight protection tape 106 is crimped...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G3/06F16L13/12F16L21/02F16L25/00F16L33/00F16L33/28F16L47/20H02G3/08H02G9/06
CPCH02G9/06H02G3/088F16L25/0036H02G3/0616F16L47/20
Inventor 岩口保忠
Owner KYOWA RUBBER
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