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Lateral pipe lining method and lateral pipe lining apparatus

A branch pipe and lining technology, which is applied in the directions of water supply devices, pipes/pipe joints/pipe fittings, pipe elements, etc., can solve the problem of increased manufacturing costs, insufficient combination of branch pipe linings and main pipe linings, insufficient adhesion, etc. problem to achieve a good fit, simple and reliable thermal fusion

Inactive Publication Date: 2012-05-16
SHONAN GOSEI JUSHI SEISAKUSHO KK
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, in the structure of Patent Document 3, there is a disadvantage that since the packing is attached to the flange of the branch pipe lining and the adhesive is applied to bond it to the main pipe lining, the main pipe lining Joint, so the manufacturing cost is increased, and especially in the case of the flange of the branch liner is hard, it cannot be bonded sufficiently, and the combination of the branch liner and the main liner is not sufficient

Method used

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  • Lateral pipe lining method and lateral pipe lining apparatus
  • Lateral pipe lining method and lateral pipe lining apparatus
  • Lateral pipe lining method and lateral pipe lining apparatus

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Embodiment Construction

[0048] In the following description, embodiments of a branch pipe lining material for lining a branch pipe branching from a main pipe, a branch pipe lining method, and an apparatus will be described with reference to the drawings. The main pipe is the installed pipe of sewer, water supply, agricultural waterway, etc., and the branch pipe is the installation pipe installed on the main pipe, branched from the main pipe, and extended to the ground.

[0049] figure 1 The main pipe liner 20 for lining the main pipe is partially cross-sectionally shown. The main pipe liner 20 is composed of a tubular resin pipe 20a having an outer diameter smaller than the inner diameter of the main pipe, and a reinforcing protrusion 20b spirally wound on the outer wall thereof. The resin tube 20a is made of soft thermoplastic resin such as polyethylene or polypropylene, and an elastomer is added in a predetermined ratio as necessary to increase the elasticity of the resin tube 20a. The resin tube...

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Abstract

A main pipe (30) is lined by a main pipe lining material (20) comprising a resin pipe (20a) made of a thermoplastic resin. A flange (3, 11) of a lateral pipe lining material (1) is formed of a material capable of being welded to the thermoplastic resin of the resin pipe (20a) of the main pipe lining material (20). The thermoplastic resins of the flange (3, 11) of the lateral pipe lining material (1) and the resin pipe (20a) are heated for plastic welding by a heater (81) to integrally join the flange of the lateral pipe lining material (1) with the main pipe lining material (20). This prevents the ingress of underground water together with sediment into the main pipe from the section where the lateral pipe and the main pipe intersect.

Description

technical field [0001] The present invention relates to a branch pipe lining method and device for lining a branch pipe by inserting a branch pipe liner from the branch pipe opening of a lined main pipe and using the branch pipe liner. A main pipe liner composed of a resin pipe made of a thermoplastic resin or a main pipe liner composed of a tubular resin absorbent covered with a plastic film of a thermoplastic resin is lined. Background technique [0002] A pipe lining method is known in which, when a pipe such as a sewer pipe buried in the ground deteriorates, a lining is applied to the inner peripheral surface of the pipe to repair the pipe without digging the pipe from the ground. [0003] For example, Patent Document 1 describes a method in which a main pipe liner, which is reinforced by spirally winding a protruding portion around the outer periphery of a resin pipe made of thermoplastic resin, is folded, introduced into the main pipe, and restored in cross-section. A...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C63/34
CPCF16L55/179F16L55/1651F16L55/265B29C63/34E03F7/00
Inventor 神山隆夫金田光司藤井谦治田中文教
Owner SHONAN GOSEI JUSHI SEISAKUSHO KK