Fast connection pipe fitting

Abstract

The invention provides a fast connection pipe fitting. The fast connection pipe fitting comprises a pipe core, a shell base, a shell sleeve and a jacket pipe sleeve. A first installing groove is formed in the outer side wall of the pipe core. The shell base is provided with a channel for containing the pipe core. The side wall used for forming the channel is provided with a first flange. The first flange is installed in the first installing groove. The shell sleeve is arranged outside the pipe core in a sleeving manner. The end of the shell sleeve is connected with the shell base. The jacket pipe sleeve is arranged outside the pipe core in a sleeving manner. A containing space used for a pipe material to be inserted is arranged between the jacket pipe sleeve and the pipe core. The jacket pipe sleeve is clearance fit with the shell sleeve. The jacket pipe sleeve comprises an annular pipe arranged outside the pipe core in a sleeving manner and a plurality of clamping pieces connected with the annular pipe. The end of the shell base is provided with a gradual expansion face which is gradually expanded in the axial direction of the pipe core. The end of each clamping piece makes contact with the gradual expansion face at the end of the shell base. Compared with a connecting pipe in the prior art, the fast connection pipe fitting makes the pipe material convenient to disassemble and assemble, and the effect of preventing the pipe material from getting loose is good.

Description

technical field [0001] The invention relates to the technical field of pipelines, in particular to a quick-connect pipe fitting. Background technique [0002] How to realize fast disassembly and assembly, convenient maintenance and better sealing performance between pipe fittings has become the constant pursuit of technicians in the field of pipe fittings industry. At present, pipe joints are often used with clamping type and nut ferrule type structure. Among them, the crimping joint needs to be installed with a special crimping pliers, which is time-consuming and labor-intensive. Also, if the crimp fitting is not pressed into place, the tightness of the fitting cannot be guaranteed. Furthermore, if the clamp type joint leaks, it is difficult to disassemble, and the pipe must be cut off, so that the joint cannot be reused. However, the nut ferrule type joint needs to be installed by tightening the nut with a wrench, which is more time-consuming and laborious. And if the ...

AI Technical Summary

Problems solved by technology

Among them, the clamp type joint needs to be installed with a special clamp, which is time-consuming and laborious

Also, if the crimp fitting is not pressed into place, the tightness of the fitting will not be guaranteed

Furthermore, if the clamp type joint leaks, it is difficult to disassemble, and the pipe must be cut off, so that the joint cannot be reused

The nut ferrule joint needs to be installed with a wrench to tighten the nut, which is more time-consuming and laborious

And if the pipe fittings are not inserted in place, or the installer does not tighten the nuts, the sealing performance of the pipe fittings is also not guaranteed

And after a period of use, the nuts are prone to loosening, and the sealing performance of the pipe fittings will be greatly affected

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