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Novel prefabricated pipe impermeability test connector and impermeability test method using same

A new type of technology for pipe fittings, applied in the direction of using liquid/vacuum for liquid tightness measurement, pipes/pipe joints/pipe fittings, passing elements, etc. Problems such as the use of corridors and safety

Active Publication Date: 2013-05-01
张移生 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the installation process of urban underground comprehensive pipe gallery (used to accommodate cables, optical fibers or water inlet pipes, etc.), it is necessary to use a large number of reinforced concrete prefabricated pipe fittings, such as figure 1 As shown in , the existing interface between two adjacent reinforced concrete prefabricated pipe fittings includes a socket 1' provided on a prefabricated pipe fitting and a socket 2' provided on an adjacent prefabricated pipe fitting, and the socket 1' is inserted into the socket Port 2, the connection is often sealed with a single-layer wedge-shaped rubber ring 3' or an O-ring. Therefore, during the installation and construction of the underground pipe gallery, it is impossible to immediately perform an impermeability test on each installed joint. The anti-seepage test can only be done after the installation of the entire pipeline is completed, and the operation steps of the overall anti-seepage test are cumbersome and the cost of comprehensive testing is high
On the other hand, after a period of use, it is inevitable that the foundation for laying prefabricated pipe fittings will experience uneven settlement, and some joints of reinforced concrete prefabricated pipe fittings may leak, which will affect the safety of the integrated pipe gallery
If leakage occurs when the project is put into operation after the completion of the project, the difficulty and cost of maintenance will be quite high

Method used

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  • Novel prefabricated pipe impermeability test connector and impermeability test method using same
  • Novel prefabricated pipe impermeability test connector and impermeability test method using same
  • Novel prefabricated pipe impermeability test connector and impermeability test method using same

Examples

Experimental program
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Embodiment 1

[0026] New prefabricated pipe fittings anti-seepage test interface, refer to Figure 2 to Figure 3 As shown in , it includes prefabricated pipe fittings 1 and prefabricated pipe fittings 2 of corresponding shapes. One side end of prefabricated pipe fitting 1 and the side end of prefabricated pipe fitting 2 are flat end faces. Prefabricated pipe fitting 1 and prefabricated pipe fitting 2 There are two ring-shaped grooves 111, 112 and 211, 212, one large and one small, which are nested in each other. The grooves 111, 112 of the prefabricated pipe fitting 1 are respectively separated by an expansion strip 3 to seal the grooves 211, 211 and 212 of the prefabricated pipe fitting 2. 212. The prefabricated pipe 1 is provided with two through holes 12, 13, one end opening of the through holes 12, 13 is located in the area between the two annular grooves 111, 112, and the other end opening is located inside the prefabricated pipe 1, and the through holes 12 and 13 are respectively loc...

Embodiment 2

[0031] New prefabricated pipe fittings anti-seepage test interface, refer to Figure 4 to Figure 5 As shown in , it includes prefabricated pipe fitting 1a and prefabricated pipe fitting 2a of corresponding shape, one end of prefabricated pipe fitting 1a forms a circular socket 11a, and the end of one side of prefabricated pipe fitting 2a that is inserted into it forms a circular socket Mouth 21a.

[0032] The socket 21a includes the second working surface 212a of the socket and the first working surface 211a of the socket which are formed in a stepped shape on the inner wall of one end of the prefabricated pipe, and the first working surface 211a of the socket. Socket stepped surface 113a, socket second working surface 112a, and socket first working surface 111a that shrink outward sequentially, wherein a first glue-stop platform 114a is formed between socket first working surface 111a and socket second working surface 112a, and socket The second rubber-stopping platform 115a...

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Abstract

The invention discloses a novel prefabricated pipe impermeability test connector and an impermeability test method using the same. The novel prefabricated pipe impermeability test connector is used for two fixedly connected adjacent prefabricated pipes and comprises first and second sealing parts formed at the connected part of the two adjacent prefabricated pipes for preventing the connector from leaking, wherein an annular cavity is formed between the first sealing part and the second sealing part; and two through holes communicating the annular cavity and the insides of the prefabricated pipes are formed on the prefabricated pipes at positions corresponding to the annular cavity. When the prefabricated pipes with the prefabricated pipe impermeability test connectors are assembled on site, a connector can be assembled after a previous connector passes an impermeability test, so it is unnecessary to wait for the whole pipe to be assembled before doing the impermeability test.

Description

technical field [0001] The invention relates to an interface and a performance testing method thereof, in particular to an anti-seepage inspection interface used in prefabricated pipe fittings and a method for testing the anti-seepage performance thereof. Background technique [0002] In the installation process of urban underground comprehensive pipe gallery (used to accommodate cables, optical fibers or water inlet pipes, etc.), it is necessary to use a large number of reinforced concrete prefabricated pipe fittings, such as figure 1 As shown in , the existing interface between two adjacent reinforced concrete prefabricated pipe fittings includes a socket 1' provided on a prefabricated pipe fitting and a socket 2' provided on an adjacent prefabricated pipe fitting, and the socket 1' is inserted into the socket Port 2, the connection is often sealed with a single-layer wedge-shaped rubber ring 3' or an O-ring. Therefore, during the installation and construction of the under...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/28F16L25/00
Inventor 张移生张建祥
Owner 张移生