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Composite pipe double-seal doublebell and spigot structure and composite pipe

A sealing structure and double-sealing technology, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problems of low connection strength, low work efficiency, poor sealing performance, etc., and achieve high connection strength and tightness The effect of good and excellent sealing performance

Pending Publication Date: 2020-12-08
广东智慧碧管管道技术科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The socket structure of such steel-plastic composite pipes has the following problems: first, only two outer pipes are connected together, and there is a gap between them, and the connection strength is low; second, the inner pipes of the two composite pipes are connected together. For an open structure, the water in the composite pipe will come into contact with the inner wall of the outer pipe, causing the socket of the outer pipe to be easily corroded and rusted; third, relying only on the O-ring between the two outer pipes for sealing, geological subsidence occurs , the relative position of the two outer tubes connected together changes, resulting in a change in the depth of the sealing groove set between the two outer tubes, the sealing groove on one side of the outer tube becomes deeper, and the other side opposite to it The sealing groove on one side becomes shallower, and the volume of the O-ring set in the sealing groove will not increase, resulting in a gap between the sealing groove and the O-ring, resulting in leakage and poor sealing performance; 4. Generally, the flange structure is used to connect two composite pipes together. The installation is cumbersome and time-consuming, and the work efficiency is low.

Method used

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  • Composite pipe double-seal doublebell and spigot structure and composite pipe
  • Composite pipe double-seal doublebell and spigot structure and composite pipe
  • Composite pipe double-seal doublebell and spigot structure and composite pipe

Examples

Experimental program
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Effect test

Embodiment 1

[0047] refer to Figure 2 to Figure 5 , the present embodiment proposes a double-sealed double-socket structure for a composite pipe, which includes an outer pipe socket structure and an inner pipe socket structure arranged inside the outer pipe socket structure.

[0048] The outer tube socket structure includes the outer tube socket section 1 and the outer tube socket section 2 that are plugged together. The outer tube socket section 1 and the outer tube socket section 2 are generally made of rigid materials such as steel and aluminum alloy. The outer tube socket section The outer wall of the outer tube 2 is provided with an outer tube socket connection part, and the inner wall of the outer tube socket section 1 is provided with an outer tube socket connection part, and the outer tube socket connection part is matched with the outer tube socket connection part so that the outer tube socket The section 2 and the socket section 1 of the outer tube can rotate relative to each ot...

Embodiment 2

[0067] Image 6 Partial structure of Embodiment 2 of the present invention is shown. This embodiment has a similar structure to Embodiment 1, the difference lies in the inner pipe connection structure between the inner pipe socket section 3 and the inner pipe socket section 4 . In this embodiment, the inner pipe connection structure includes an annular groove 33 arranged on the inner wall of the inner pipe socket section 3 and an annular protrusion 43 arranged on the outer wall of the inner pipe socket section 4, and each annular protrusion 43 snaps into a Corresponding annular groove 33, the tooth shape of annular protrusion 43 is triangular, leave gap 7 between the left side wall of annular protrusion 43 and the left side inner wall of annular groove 33, the right side wall of annular protrusion 43 and There is also a gap 7 between the right inner walls of the annular groove 33 .

Embodiment 3

[0069] Figure 7 Partial structure of Embodiment 3 of the present invention is shown. This embodiment has a similar structure to Embodiment 1, the difference lies in the inner pipe connection structure between the inner pipe socket section 3 and the inner pipe socket section 4 . In this embodiment, the inner pipe connection structure includes an annular groove 33 arranged on the inner wall of the inner pipe socket section 3 and an annular protrusion 43 arranged on the outer wall of the inner pipe socket section 4, and each annular protrusion 43 snaps into a Corresponding to the annular groove 33, the tooth shape of the annular protrusion 43 is trapezoidal, between the left side wall of the annular protrusion 43 and the left side inner wall of the annular groove 33, the right side wall of the annular protrusion 43 and the annular groove 33 There is a gap 7 between the right side inner wall of the ring, between the crest of the ring protrusion 43 and the bottom of the ring groov...

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Abstract

The invention discloses a composite pipe double-seal double bell and spigot structure. The structure comprises an outer pipe bell and spigot structure and an inner pipe bell and spigot structure arranged in the outer pipe bell and spigot structure. The outer pipe bell and spigot structure comprises an outer pipe bellmouth section and an outer pipe spigot section which are connected together in aninserted manner, an outer pipe sealing structure is arranged between the outer pipe bellmouth section and the outer pipe spigot section, an outer pipe spigot connecting part is arranged on the outer side wall of the outer pipe spigot section, an outer pipe bellmouth connecting part is arranged on the inner side wall of the outer pipe bellmouth section, and the outer pipe spigot connecting part isconnected with the outer pipe bellmouth connecting part in a matched manner. The inner pipe bell and spigot structure comprises an inner pipe bellmouth section and an inner pipe spigot section which are connected together in an inserted manner, and an inner pipe sealing structure and an inner pipe connecting structure capable of limiting separation of the inner pipe bellmouth section and the innerpipe spigot section are arranged between the inner side wall of the inner pipe bellmouth section and the outer side wall of the inner pipe spigot section. The composite pipe double-seal double bell and spigot structure comprises the two layers of connecting structures and the two layers of sealing structures, and is high in connecting strength and good in sealing performance.

Description

technical field [0001] The invention relates to a double-sealing and double-socket structure of a composite pipe and the composite pipe. Background technique [0002] In order to ensure the strength of the pipeline and improve the anti-corrosion performance at the same time, the composite pipe came into being. Steel-plastic composite pipe is the most common type of composite pipe. It is widely used in various projects such as water supply and drainage to provide convenience for people's lives. [0003] A common steel-plastic composite pipe generally has the following structure, including a steel outer pipe and a polymer inner pipe arranged inside the outer pipe. In order to adapt to geological subsidence, sockets and sockets are provided at both ends of the outer pipe respectively. There is a gap between the sockets and sockets so that the connected pipes can rotate at a certain angle relative to each other. To cause damage, the inner pipe is designed to be shorter than th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L27/067F16L9/147
CPCF16L9/147F16L27/023F16L27/067
Inventor 罗昌斌
Owner 广东智慧碧管管道技术科技有限公司