A pressure-resistant municipal drainage pipe

A drainage pipe and municipal technology, which is applied in the field of drainage pipes, can solve the problems of weak compression resistance of municipal drainage pipes and easy rupture of municipal drainage pipes, and achieve the effects of eliminating radial force, improving service life and strengthening support force

CN111305350BActive Publication Date: 2021-03-09中冶华南建设工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-03-09

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Abstract

The invention belongs to the technical field of drainage pipes, in particular to a pressure-resistant municipal drainage pipe; it includes a drainage pipe body and a flange; the adjacent drainage pipe bodies are connected by a flange; the drainage pipe body includes an inner pipe and an outer pipe , and the positions a, b and c between the inner tube and the outer tube are connected by support columns, and the position d between the inner tube and the outer tube is provided with a decompression unit, and the decompression unit includes No. 1 pole, No. 2 pole and No. 3 pole , No. 4 rod and slider; by dividing the drain pipe body into an inner tube and an outer tube, and setting a decompression unit between the inner tube and the outer tube, when the outer tube is subjected to external pressure, the slider slides on the chute , reduce the pressure on the outer pipe, so that the pressure transmitted to the inner pipe is lower than the pressure that the inner pipe can withstand, and protect the inner pipe to avoid the rupture of the inner pipe and affect the transportation of water in the municipal area, thereby improving drainage tube life.
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Description

technical field

[0001] The invention belongs to the technical field of drainage pipes, in particular to a pressure-resistant municipal drainage pipe. Background technique

[0002] A pipeline is a device used to transport gas, liquid or fluid with solid particles connected by pipes, pipe connectors and valves. Usually, after the fluid is pressurized by blowers, compressors, pumps and boilers, it flows from the high-pressure part of the pipeline to the low-pressure part, and it can also be transported by the pressure or gravity of the fluid itself. Pipes are widely used, mainly in water supply, drainage, heat supply, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering and various industrial devices.

[0003] Municipal drainage pipes refer to rainwater and sewage pipes under municipal roads, commonly known as "sewer pipes", and are usually called municipal drainage pipes in engineering. Existing drainage pipes are re...

Examples

Embodiment Construction

[0023] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with the embodiments.

[0024] Such as Figures 1 to 6 As shown, a pressure-resistant municipal drainage pipe according to the present invention includes a drainage pipe body 1 and a flange plate 2; adjacent drain pipe bodies 1 are connected through a flange plate 2; it is characterized in that: the drainage pipe The pipe body 1 includes an inner pipe 3 and an outer pipe 4, and the positions a, b and c between the inner pipe 3 and the outer pipe 4 are connected by support columns, and the position d between the inner pipe 3 and the outer pipe 4 is provided with a decompression unit 5 , the decompression unit 5 comprises No. 1 rod 51, No. 2 rod 52, No. 3 rod 53, No. 4 rod 54 and slider 55; one end of the No. 1 rod 51 and No. 2 rod 52 is hinged on the inner wall of the outer t...