Telescopic joint connector for building water drainage

Abstract

The invention discloses a telescopic joint connector for building water drainage. The telescopic joint connector comprises a connector body, an upper bearing head and a lower bearing head. The upper bearing head is located above the lower bearing head and comprises a first upper bearing head body and a second upper bearing head body, wherein the first upper bearing head body is located above the second upper bearing head body. The lower bearing head comprises a first lower bearing head body and a second lower bearing head body, wherein the first lower bearing head body is located below the second lower bearing head body. Inserting rods are arranged at the bottom of the second upper bearing head body, fixing rods are arranged below the inserting rods, the lower ends of the inserting rods are connected with the fixing rods through second springs, and first springs are arranged around the lower end of the second upper bearing head body. The inserting rods and the second springs are used in cooperation, and the function of relieving extrusion force between water pipes is achieved. Through cooperative usage of the first springs, a first thread pressing cover and a second thread pressingcover, the bending radian of a telescopic joint is increased; and meanwhile, under the action of the first springs and the second springs, the telescopic joint can be reset when the pressure is reduced.

Description

technical field [0001] The invention relates to the field of building drainage, in particular to an expansion joint used for building drainage. Background technique [0002] Expansion joints are very commonly used pipe fittings in the field of building drainage. They are mainly used to compensate for thermal expansion and contraction in the linear direction of the pipeline. The expansion of the pipeline is large, the temperature is high, and the pressure area is strong. In the building water supply and drainage engineering, the foundation concrete pouring or pre-embedded pipelines, in the process of these engineering pipelines being subjected to building foundation settlement, equipment resonance, geological changes, and pipeline medium changes, the distribution position of the pipelines begins to be stressed, deformed, twisted, and the pipelines are damaged. The pre-buried pipeline or even rupture will bring great inconvenience to the construction unit. In order to overcome...

AI Technical Summary

Problems solved by technology

In the building water supply and drainage engineering, the foundation concrete pouring or pre-embedded pipelines, in the process of these engineering pipelines being subjected to building foundation settlement, equipment resonance, geological changes, and pipeline medium changes, the distribution position of the pipelines begins to be stressed, deformed, twisted, and the pipelines are damaged. The pre-buried pipeline or even rupture will bring great inconvenience to the construction unit. In order to overcome these difficulties and ensure the safe operation of the pipeline, the invention of the Chinese patent application No. 201621357733.1 has designed an expansion joint joint

[0003] However, although this invention solves the above problems to a certain extent, the telescopic adjustment effect is not very strong. In addition, because the hydraulic pressure is changeable, when the pressure decreases after displacement, it is necessary to restore and correct the telescopic joints. Recover correction function of telescopic joint

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