Connecting method of plastic hollow wall winding pipe joint for traction

Abstract

The invention discloses a connecting method of a plastic hollow wall winding pipe joint for traction, and belongs to the field of water supply and discharge. According to the technical scheme, a plastic special-shaped square pipe, melt adhesive, a heating element, a sealing sleeve and a abrasion prevention sleeve are involved, and the connecting step of the winding pipe joint comprises the following connecting steps that cutting is carried out, an end surface is cleaned, the heating element is fixed, the winding pipe joint is abutted jointed, the power supply of the heating element is poweredon, the butt joint is adhered, the butt joint is cooled, the outer surface of the joint is cleaned, the sealing sleeve sleeves the joint, and the abrasion prevention sleeve sleeves the sealing sleeve.The winding pipe joint is firm in connection, the strength is improved, and the connecting method can be widely applied to the field of water supply and discharge.

Description

technical field [0001] The patent of the invention belongs to the field of water supply and drainage, and in particular relates to a connection method of a plastic hollow-wall winding pipe joint for traction. Background technique [0002] With the vigorous advancement of urbanization, water supply and drainage projects have increased accordingly. The existing sewer pipes, concrete pipes or steel pipes have been in disrepair for a long time, and leakage and other faults have occurred. Some concrete pipes or steel pipes pull new plastic hollow wall winding pipes to achieve the purpose of repairing the original damaged pipes. The length of the plastic hollow wall winding pipe takes into account factors such as loading, unloading, and transportation. It is usually cut to length at a specified length. The length is 6 meters, 9 meters, and 10 meters. It needs to be connected before pulling. The currently used connection technology is Cut the plastic hollow-wall winding tube with ...

AI Technical Summary

Problems solved by technology

The length of the plastic hollow wall winding pipe takes into account factors such as loading, unloading, and transportation. It is usually cut to length at a specified length. The length is 6 meters, 9 meters, and 10 meters. It needs to be connected before pulling. The currently used connection technology is Cut the plastic hollow-wall winding tube with a flat mouth, put the sealing heat-shrinkable sleeve on the outer surface of the joint after the end faces between the tubes and the tubes, and rely on the sealing heat-shrinkable sleeve to connect the plastic hollow-wall winding tube. The disadvantages are: The flat cutting will inevitably damage the original special-shaped square pipe structure, resulting in a serious decrease in the rigidity and strength of the plastic hollow wall winding pipe; there is no re-melt adhesive connection at the flat cutting, and the sealing heat shrinkable sleeve will bear the traction force when pulling the pipe, which is easy Cause breakage, tube leakage, and even cause the sealed heat shrink sleeve to break off and fail to pull

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