Pipe connecting structure

Abstract

The invention provides a pipe joint structure, comprising a pipe joint male head and a pipe joint female head, the pipe joint male head comprises a male head outer pipe and a male head inner pipe, and the end of the male head inner pipe is There is a male head joint part longer than the male head outer pipe, the pipe joint female head comprises a female head outer pipe and a female head inner pipe, and the end of the female head outer pipe has a female head that is longer than the female head inner pipe. a head extension part, wherein the inner diameter of the female head extension part is equal to the outer diameter of the male head outer tube, the position where the female head inner tube and the male head joint part are butted is the female head joint part, and the The inner diameter of the female connector is equal to the outer diameter of the male connector. In the pipe connection structure described in the present invention, the inner pipe of the male head can be embedded in the inner pipe of the female head, and the outer pipe of the male head is directly glued and connected with the inner wall of the outer pipe of the female head, so that the docking and positioning are convenient and the assembly is simple. The cooperation with the inner tube of the female head is tighter, and the air tightness of the tube connection is improved.

Description

technical field [0001] The invention relates to a pipe connection structure. Background technique [0002] The existing metal pipeline water pipe joints are usually fixed by internal threads or external locking structures for butt joints. However, due to the aging of the sealing ring and changes in the water temperature in the pipeline, the above-mentioned butt joint methods have certain defects. [0003] First of all, the assembly is cumbersome and needs to be rotated and tightened or an external sleeve fixing device is required, which is especially difficult to operate in a narrow working environment. Secondly, the air tightness is not good, especially for the pipe joints with inner and outer pipe structures, the two are troublesome to connect, the inner pipes cannot be completely aligned and installed, and as the sealing ring ages, it will cause problems such as water seepage during use. [0004] Therefore, there is an urgent need for a pipe connection structure to overc...

AI Technical Summary

Problems solved by technology

[0002] The existing metal pipeline water pipe joints are usually connected by internal thread fixing or external locking structure. However, due to the aging of the sealing ring and the change of the water temperature in the pipeline, the above-mentioned butt joint method has certain defects.

[0003] First of all, the assembly is cumbersome, and it needs to be rotated and tightened or an external socket fixing device is required, especially in a narrow working environment, it is not easy to operate

Secondly, the airtightness is not good, especially for pipe joints with inner and outer pipe structures, the two are troublesome to connect, the inner pipes cannot be completely aligned and installed, and the aging of the sealing ring will lead to problems such as water seepage during use

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