A Saddle-type Bypass of Rear Cloth Electrofusion

A saddle type, electric fusion technology, applied in the direction of pipeline connection arrangement, pipe/pipe joint/fitting, mechanical equipment, etc., can solve the problems of insufficient welding strength, easy air leakage during use, monotonous structure, etc., to achieve optimal welding strength, Guaranteed sealing effect
CN104061397BActive Publication Date: 2016-06-08ZHEJIANG QINGFA PIPE TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG QINGFA PIPE TECH
Publication Date
2016-06-08

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Abstract

The present invention relates to the technical field of pipeline manufacturing, in particular to a post-wire electrofusion saddle bypass. In order to solve the problem of monotonous structure of the existing PE electrofusion saddle bypass, unscientific distribution of resistance wires, insufficient welding strength, and easy welding surface Air leakage, poor sealing, easy air leakage during drilling and use, and adverse consequences caused by drilling debris entering the pipeline, including saddle-shaped bypass body, bypass cap, sealing pressure ring, O-ring And the drilling tool installed in the bypass main body is characterized in that the resistance wire is embedded in the saddle-shaped arc welding surface on the bypass main body in a spiral distribution with the wiring cutter head; the cutting tool head of the drilling tool is divided into Sawtooth structure, and collecting grooves are evenly distributed along the circumference of the drilling tool. The welding strength is optimized, the sealing effect is improved, and cutting objects are prevented from entering the pipeline.
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Description

technical field

[0001] The invention relates to the technical field of pipeline manufacturing, in particular to a saddle-type bypass for electric fusion of rear wiring. Background technique

[0002] Polyethylene and other plastic pipes have been widely used in the field of water supply and drainage, gas and other fluid transportation pipelines due to their excellent comprehensive advantages such as anti-corrosion, environmental protection, simple construction and reliable performance. Due to the rapid progress of urbanization and the ever-increasing requirements for energy and environmental protection, the pipeline design is inaccurate. More and more pipelines already in operation need to add new branches. In order not to affect the normal operation of the original pipelines For operation, special PE pipe fittings such as electrofusion saddle bypass are required. At present, the existing PE electrofusion saddle-type bypass structure on the market is simple, the distribution...

Claims

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