Auxiliary anti-falling device for hough section

Abstract

The invention provides an auxiliary anti-falling device for a hough section. The auxiliary anti-falling device for the hough section comprises hough ring half bodies, wherein the two hough ring half bodies are connected to form a loop section through a connecting piece; antiskid-matching bulging teeth adaptive to a pipe body to be repaired are arranged on the inner arc surfaces of the hough ring half bodies; and the hough ring half bodies and the hough section are matched for limiting the axial separation. During use, a sealing piece is embedded into side edges of pipe length directions of thehough ring half bodies and straight grooves and arc-shaped grooves arranged on the circumferential directions of pipe end parts, the two half bodies and the sealing ring enclose on the pipe to be repaired, and a nut and a bolt are connected to realize the deformation of the seal ring to be a reliable sealing state, so that a pipe joint or a pipe body breaking part is enclosed so as to eliminate leakage points.

Description

technical field [0001] The invention relates to a Huff quick connector for pipelines, in particular to a Huff quick connector for plastic pipelines. Background technique [0002] The pipelines in the urban water supply and drainage system will be damaged and leaked due to various reasons during use, so they need to be repaired in time. As a common repair device, the Huff quick joint is also referred to as the Huff joint for short. It consists of two semi-tubular casting halves, two rubber parts and bolts, such as figure 1 , 2 As shown, two semi-tubular half-body 1 of the half-tubular half-body 1 is used for emergency repair, and the damaged part of the pipeline is accommodated in the lumen of the half-piece, and bolts (not shown in the figure) are used to tighten the half-body of the half-piece. The half garden joint surface causes the rubber seal 2 to seal the damaged part. This method is widely used due to the small number of people required for emergency repairs, short...

AI Technical Summary

Problems solved by technology

Plastic pipes such as PE pipes are mostly connected to each other by welding, and there are inevitably welding defects at the joints of the welds, which cannot be detected in time due to lack of detection means or detection difficulties at the construction site, and pipe fittings buried underground due to underground geology Changes in the environment or construction excavation may or may lead to the destruction of plastic pipes or the concentrated exposure of original defects

When the Haff joint in the prior art is used for repair, due to the smoothness of the plastic pipe wall, the support of the plastic pipe, the change of the constrained environment, and the pressure of the pipe body, the sealing of the pipe body A, B and the Huff joint There is mutual displacement in the pipe length direction between the parts 2, and the length of the cladding section between the half joint and the pipe body to be repaired is limited, and the relative separation displacement of the two occurs from time to time. When the two are completely separated, it will lead to repair fail

That is to say, the Huff Festival in the prior art can meet the short-term or superficial repair, but cannot guarantee a reliable service life

[0004] In addition, commonly used cast iron pipes are also commonly used pipe fittings. Since the sealing ring on the half joint is only in contact with the pipe body to be repaired, and the half joint is not in contact with the pipe body to be repaired, it may also occur that the pipe body to be repaired is in contact with the pipe body to be repaired. Situation of Separation

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