Connecting pipe fitting of internal blocking pressure thin-walled pipe

Abstract

The invention relates to a connecting pipe fitting of an internal blocking pressure thin-walled pipe, which comprises the structures of a connecting pipe fitting and a metal pipe, wherein two ends ofthe connecting pipe fitting are provided with rolled pipe orifices; the connecting pipe is provided with connecting pipe concave curved surfaces; and seal washers are arranged on the connecting pipe fitting and between the connecting pipe concave curved surfaces of the connecting pipe respectively. The connecting pipe fitting of the internal blocking pressure thin-walled pipe is quick and convenient in connection, firm in sealing and convenient in operation, improves the working efficiency, puts an end to the defects of unstable adhesion and convex reduced inside diameter, has the obvious characteristic of not being influenced by overheating, saves above 70 percent of materials for a single connecting pipe fitting to relatively overcome the defect of remained high level of the accumulativecost due to more materials used by the connecting pipe fitting, and is favorable for popularization and application.

Description

1. Technical field: [0001] The invention relates to a thin-walled pipe connecting pipe fitting for internal clamping, relates to the technical field of plumbing pipes and pipe connection thereof, and is applied to the connection of thin-walled metal pipes. 2. Background technology: [0002] At present, the plumbing pipes supplied in the market basically use traditional galvanized pipes, connected with pipe connectors with inner wires, which are very easy to oxidize and corrode, and cause serious water pollution. Aluminum-plastic composite pipes can overcome and reduce water pollution , because it is easy to corrode the aluminum skin in the water and lose its strength, and because the aluminum-plastic composite pipe is easy to be thermally expanded and cold-shrinked, it will affect the sealing performance of the snap-fit ​​joint after a long time, and the water leakage caused by it will be frequent have happened. [0003] At present, there is a kind of pipe fittings that use...

AI Technical Summary

Problems solved by technology

[0002] At present, the plumbing pipes supplied in the market basically use traditional galvanized pipes, connected with pipe connectors with inner wires, which are very easy to oxidize and corrode, and cause serious water pollution. Aluminum-plastic composite pipes can overcome and reduce water pollution , because it is easy to corrode the aluminum skin in the water and lose its strength, and because the aluminum-plastic composite pipe is easy to be thermally expanded and cold-shrinked, it will affect the sealing performance of the snap-fit ​​joint after a long time, and the water leakage caused by it will be frequent happened

[0003] At present, there is a kind of pipe fittings that use protruding pipe fittings at the interface of pipe materials to seal and connect pipe fittings and seals. The inner diameter is maintained and the connection method is relatively advanced. However, the cost remains high due to the large number of materials used to connect pipe fittings. , which directly affects the popularization and application of the connecting pipe fittings

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