Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Underground sewer repairing method

A technology for sewage pipelines and waterstops, which is used in the repair construction and treatment of large-diameter underground sewage pipeline interface cracks and leakage, and the repair construction of underground sewage pipelines. It can solve the problems of large-diameter pipeline cracks, leakage, etc. Guaranteed improvement, strong adaptability and rapid construction

Inactive Publication Date: 2009-08-26
上海龙日建设开发有限公司
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction method for repairing the interface of underground sewage pipes, which aims to effectively solve problems such as cracks and leakage in large-diameter pipes, improve construction quality and efficiency, and ensure that underground sewage pipes are effectively put into use for a long time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Underground sewer repairing method
  • Underground sewer repairing method
  • Underground sewer repairing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Such as Figure 1 ~ Figure 4 As shown, the water-stop belt 1, the inner expansion ring 2 and the locking connection mechanism are provided. The water-stop belt 1 has an annular belt-like structure. The water-stop belt 1 is attached to the junction of two large-diameter underground sewage pipelines. One surface of 1 is attached to the inner circular surface of the pipe, and the surface where the waterstop 1 is attached to the connecting pipe is provided with a sealing groove; the other side of the waterstop 1 is matched with the outer circular surface of the inner expansion ring 2 and stops The matching surface of the hose 1 and the inner expansion ring 2 is provided with grooves. Correspondingly, the mating surface of the inner expansion ring is provided with a convex channel; the inner expansion ring 2 is connected by at least two arc-shaped inner expansion rings. As a result, the ends of the two adjacent segments of the inner expansion ring body are connected by a snap co...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for repairing an underground sewage pipeline. By setting a waterstop with an annular belt structure, an internal expansion ring and a snap-fit ​​connection mechanism, the waterstop is attached to the joint of two sections of connecting pipes, and one side of the waterstop is It fits the inner surface of the pipe, and the other side matches the outer surface of the inner expansion ring, and the inner expansion ring is formed by connecting at least two arc-shaped inner expansion rings, and the adjacent two inner expansion rings The ends of the pipes are connected by a snap-fit ​​connection mechanism, and the inner expansion ring forms a closed circular ring in the expanded state, so that the waterstop is tightly sealed with the joint ends of the two connecting pipes, so that the two pipes are connected The tube is sealed and connected as one. The method is easy to implement, has strong adaptability, good water-stopping effect and good durability, can be popularized and used in the industry, and has good economic and social benefits.

Description

Technical field [0001] The invention relates to the repair construction of an underground sewage pipeline, in particular to a repair construction treatment method for joint cracks and leakage of a large-caliber underground sewage pipeline, and belongs to the technical field of pipeline non-excavation repair engineering. Background technique [0002] Large-caliber underground sewage pipelines are mostly laid in sections. After being put into use, due to various reasons such as natural environment, geological changes and different upper pressures, the pipelines will change from straight lines to non-straight lines, and the joints of the pipelines will deform and cause cracks, causing groundwater and groundwater. The soil and silt that entrained the pipes poured into the pipes and flowed away with the sewage, causing a vicious circle in the long run. In the prior art, cement is generally used for sealing and mending leakage at the interface, and this sealing mending method cannot wi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): E03F3/06
Inventor 徐水坤李国水
Owner 上海龙日建设开发有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com