Hidden type pipe fitting connection structure and installation and detachment method thereof

Abstract

The invention provides a hidden type pipe fitting connection structure and an installation and detachment method thereof, and belongs to the field of pipe fitting connection. The hidden type pipe fitting connection structure and the installation and detachment method solve the problem that existing pipe fittings are poor in leakprooness and stability after connection. The hidden type pipe fittingconnection structure comprises two pipe fittings and a connection device. The connection device comprises an inner connection sleeve and two outer connection sleeves. A pin groove is formed in the inner wall of each pipe fitting. An outer blocking face is arranged on the end face of each pipe fitting. A rotation groove is formed in the outer wall of the inner connection sleeve. The connection device further comprises regulation bases and movable bases. Each regulation base comprises a regulation sleeve and a regulation plate. The inner edges of the regulation plates are sleeved with the rotation groove. An inner blocking face is arranged on the outer end face of each regulation sleeve. Each movable base comprises a movable sleeve. The movable sleeves are connected with the regulation sleeves in a screwed manner. A first seal groove and a second seal groove are formed in the outer wall of the outer end of each movable sleeve. A pin hole is formed in each outer connection sleeve. A rod groove is formed in the outer wall of each movable sleeve. A slide groove is formed in each rod sleeve. A slide block is arranged each slide groove. Pin rods arranged in the pin holes in a penetratingmanner are further included. The inner ends of the pin rods are fixed to the slide blocks. By means of the connection device, the two pipe fittings can be stably connected, and the sealing effect canbe improved.

Description

technical field [0001] The invention belongs to the technical field of pipe fitting connection, and relates to a hidden pipe fitting connection structure and an assembly and disassembly method thereof. Background technique [0002] The most common way to seal and butt two pipe fittings is to use threads to connect with glue. This structure has high airtightness, but there is a problem of low strength; the existing application number is 201910347275.5, and the name is "A Pipe Fitting Sealing Connection Structure and its connection and disassembly method” Chinese invention patent application, which sets a sealing connection device between the pipe fittings, uses the pin of the sealing connection device to cooperate with the pin groove in the pipe fittings to connect, and at the same time rotates the sealing sleeve to seal the gasket Compression achieves sealing, so it not only has high connection strength, but also has strong sealing performance. But it has the following prob...

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Problems solved by technology

[0003] 1. The gasket can only achieve the best sealing effect by moving axially, but the rotation of the sealing sleeve will drive the gasket to rotate. At this time, not only the gasket cannot achieve the best sealing effect, but it will even damage the gasket

[0004] 2. Due to the elasticity of the pipe fittings, especially the end of the pipe fittings connected with the sealing connection device, it is very easy to be deformed by the impact of the fluid, so that the pin and the pin groove are separated, so the connection strength is low

[0005] 3. The structure of the sealing connection device is complex, and after the installation is completed, the outer adjustment sleeve cannot stably fix the connection hole, which in turn causes the outer connection sleeve to move in the pipe fitting under the influence of the fluid, so the stability is poor, and the pipe fitting shakes caused by the fluid flow It will loosen the sealing sleeve, which in turn will affect the sealing effect

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