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Sealing joint used for connecting bamboo-like prestress flat plastic pipes and provided with exhaust pipe

A technology for sealing joints and flat mouth pipes, which is applied in the directions of pipes/pipe joints/fittings, pipeline connection arrangement, passing elements, etc., which can solve the problems affecting the grouting compactness and fullness of vacuum prestressed holes, complicated connection methods and poor sealing effect. and other problems, to achieve the effect of simple structure, reliable performance and convenient processing

Inactive Publication Date: 2015-11-11
TIANJIN SHINKUNTAI ADVANCED PRESTRESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in on-site construction, such flat-mouthed plastic pipes are generally connected to each other by thermoplastic welding or wrapping sealing tape. These connection methods are cumbersome to deal with, have poor stability, and poor sealing effect, which is prone to air leakage. , affecting the compactness and fullness of vacuum prestressed tunnel grouting

Method used

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  • Sealing joint used for connecting bamboo-like prestress flat plastic pipes and provided with exhaust pipe
  • Sealing joint used for connecting bamboo-like prestress flat plastic pipes and provided with exhaust pipe
  • Sealing joint used for connecting bamboo-like prestress flat plastic pipes and provided with exhaust pipe

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Embodiment Construction

[0024] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0025] The present invention provides a sealing joint 5 for connecting a bamboo-shaped prestressed flat-mouthed plastic pipe with an exhaust pipe. The sealing joint 5 is butted and combined by the first half of the flat-mouthed pipe 1 and the second half of the flat-mouthed pipe 4 A sealing joint 5 with a flat mouth type is formed in the cross section.

[0026] Such as figure 1 , figure 2 As shown, on the outer edge of the first half flat pipe 1, there is protrudingly provided with an exhaust pipe 1c penetrating through half of the flat pipe wall. The inner hole of the exhaust pipe 1c is a threaded hole, and the exhaust pipe 1c is arranged in the middle of the outer edge of the first half of the flat mouth pipe 1. The gap between the ends of the stress flat mouth plastic pipe 3.

[0027] On the inner ring of the first half flat tube 1 and the in...

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Abstract

The invention discloses a sealing joint used for connecting bamboo-like prestress flat plastic pipes and provided with an exhaust pipe. The sealing joint is formed by connecting a first half flat pipe and a second half flat pipe in a butt joint mode. The exhaust pipe is arranged on the edge of the first half flat pipe. The inner circle of the first half flat pipe and the inner circle of the second half flat pipe are each provided with two large grooves, two small grooves and sealing gasket grooves. The two sides of the length middle point of the first half flat pipe and the two sides of the length middle point of the second half flat pipe are each provided with one large groove. Every two small grooves are located in the outer sides of the two corresponding large grooves. The two sides of each large groove are each provided with one sealing gasket groove. Sealing gaskets are installed in the sealing gasket grooves respectively. The sealing joint has the advantages that the sealing gaskets tightly press and wrap the two sides of large flat ribs of the bamboo-like prestress flat plastic pipes, the sealing effect is good in construction, and compactness and fullness of vacuum prestress hole grout are facilitated; the two bamboo-like prestress flat plastic pipes are connected in a sealed mode, operation is easy and convenient, performance is reliable, and the exhaust effect is good.

Description

technical field [0001] The invention relates to a sealing joint of a plastic pipe in the construction of a prestressed steel strand, in particular to a sealing joint connecting a bamboo-shaped prestressed flat mouth plastic pipe with an exhaust pipe. Background technique [0002] In recent years, with the development of the construction industry, prestressed concrete has been gradually promoted. Compared with traditional reinforced concrete, prestressed concrete has the advantages of high strength and material saving. Now the most advanced technology is vacuum grouting and post-tensioning prestressing. concrete technology. Its feature is to pour concrete first, embed metal pipes or plastic pipes in the concrete in advance, and then pull the prestressed steel strands in the pre-embedded metal pipes or plastic pipes after the concrete reaches a certain strength, and then use anchors to install the prestressed steel strands. The steel strands are fixed on the components, and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/12F16L47/08F16L47/14
CPCF16L47/12F16L25/0063F16L47/08F16L47/14
Inventor 牛坡
Owner TIANJIN SHINKUNTAI ADVANCED PRESTRESSING TECH
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