Pipe fitting for absorbing expansion and earthquake-proof

Abstract

An expandable and earthquake-proof pipe joint is provided to prevent the destroying of pipe joint by preventing the increasing of partial flow pressure and vortex which is caused by the inflow of fluid. An expandable and earthquake-proof pipe joint comprises a body, a packing, a flange, a pressing ring, a combining member, and a buffering member. One end of a pipe is inserted into the body. A level difference is formed at an end of the body in which one end of the pipe is inserted. An inner diameter of the body is expanded through the level difference. The packing seals the inner surface of the body and the outer surface of the pipe. The flange pressurizes the packing to a vertical plane of the level different part in the longitudinal direction of a pipe. The buffering member absorbs the expansion and contraction of the pipe.

Description

technical field [0001] The present invention relates to a pipe joint, in particular to a pipe joint for expansion and shock resistance manufactured to connect a plurality of pipes to each other, seal them from the outside, and absorb the expansion and contraction deformation of the pipes due to internal and external heat and environment. Background technique [0002] Usually, when fluids such as liquids and gases are continuously transported over long distances, tubes are often used as the transport tool. [0003] These tubes are often made of various materials, such as plastics or metals, depending on the type, composition, and use environment of the fluid. [0004] These pipes, from the point of supply all the way to the point of consumption, are connected to each other by a plurality of pipes, and the connection points of these pipes are generally equipped with pipe joints. [0005] Here, when a liquid or gas with a large temperature change flows in the pipe, or the pipe...

AI Technical Summary

Problems solved by technology

[0025] However, as the outer diameter and inner diameter decrease, at one end of the tube 21 having a certain length, the flow pressure of the fluid inside the flow tube 21 rises to a level corresponding to the decrease in the inner diameter, which not only interferes with the flow of the fluid, but also hinders the flow of the fluid. smooth flow of fluid

[0026] In addition, when the stopper 21b installed to limit the sliding range of the pipe 21 is damaged due to the excessive sliding of the pipe 21, the combination of the pipe 21, the spherical pipe 22 and the housing 23 is released, so that the original function of the pipe joint 20 cannot be completed. Function

[0027] In addition, since the fluid flows into the space formed between the stopper 21b and the spherical tube 22, the flow of the fluid cannot be completed smoothly due to the flow pressure generated when the fluid flows in and out, the vortex phenomenon of the fluid, and the like.

[0028] In addition, although the pipe joint 20 has the function of shock resistance, it has limitations in installation due to its high manufacturing cost, and because of its complicated manufacturing structure, it brings many difficulties to the manufacture of the pipe joint 20.

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