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Pipe joint

A technology of pipe joints and flange joints, applied in the direction of pipes/pipe joints/pipe fittings, flange connections, through components, etc., can solve the problems of easy oxidation and corrosion, interface stuck, easy to leak water, etc.

Active Publication Date: 2010-05-12
ZHEJIANG ZHENGKANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing pipe joints generally use pipes to process external threads, and joints to process internal threads to achieve the purpose of connection. This connection method is very easy to oxidize and corrode, and requires relatively high dimensional accuracy. If the thread at the interface is broken or rusted The interface will be stuck, which will not only affect the water quality and the service life of the joint, but also increase the difficulty of maintenance work, and the sealing is poor, which is prone to water leakage

Method used

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Embodiment Construction

[0008] Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:

[0009] Among them: 1. Flange joint; 2. Pipeline; 3. Flange gland; 4. Seal ring; 5. Pipe convex ring; 6. Internal pressure convex ring; 7. Gland tail end protection sleeve; , Outer end face; 4-2 Inner cylindrical surface; 4-3, Inner cone surface; 4-4, Transition outer cylindrical surface.

[0010] like figure 1 , figure 2 As shown, the pipe joint provided by the present invention includes a flange joint 1, a pipe 2, a flanged gland 3 and a sealing ring 4, and the inner compression end surface of the flanged gland 3 is matched with the outer side of the pipe flange 5 The curved surface of the end surface is consistent, and the inner side of the flanged gland 3 is provided with an internal pressure convex ring 6, and the outer end surface 4-1 of the sealing ring 4 is matched with the inner end surface of the internal pressure convex ring 6 of the flanged...

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Abstract

The invention provides a pipe joint, which comprises a flange joint, a pipeline, a flange gland bush, and a sealing ring, wherein the inner pressing end of the flange gland bush is identical with endsurface of the outer side of a matting pipe bulge loop, an inner pressing bulge loop is provided at the inner side of the flange gland bush, the outer end surface of the sealing ring is matting with the end surface of the inner side of the inner pressing bulge loop of the flange gland bush, the inner cylindrical surface of the sealing ring is matting with the outer cylindrical surface of the pipeline, and the inner conical surface of the sealing ring is matting with the outer conical surface of the flange joint. The invention is a pipe joint with the advantages of firm connection, good sealingproperty, long service life, no pollution to water, and convenient repairing.

Description

technical field [0001] The invention relates to a pipe joint. Background technique [0002] Existing pipe joints generally use pipes to process external threads, and joints to process internal threads to achieve the purpose of connection. This connection method is very easy to oxidize and corrode, and requires relatively high dimensional accuracy. If the thread at the interface is broken or rusted The interface will be stuck, which not only affects the water quality and the service life of the joint, but also increases the difficulty of maintenance work, and the sealing is poor, which is prone to water leakage. Contents of the invention [0003] The object of the present invention is to provide a pipe joint with firm connection, good sealing performance, long service life, little water pollution and convenient maintenance. [0004] In order to achieve the above object, the technical solution of the present invention is as follows: the pipe joint includes a flange joint, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L23/028F16L23/22
Inventor 黄建聪黄文博黄海若
Owner ZHEJIANG ZHENGKANG IND