Water supply and drainage pipeline connecting structure and method

Abstract

The invention discloses a water supply and drainage pipeline connecting structure and method and relates to the field of pipeline connection. Pipe end adapters are mounted at connecting ends of a water supply and drainage pipeline; the inner side of each pipe end adapter is provided with a reinforced circular pipe part inserted in a water supply and drainage pipeline; a sealing rubber ring is tightly sleeved to seal the inner wall of the water supply and drainage pipeline; the outer side of each pipe end adapter is provided with a pre-tightening conical part wrapping the water supply and drainage pipeline; the large head end of each pre-tightening conical part and the outer side end of the reinforced circular pipe parts are connected into a whole to form a sealing bottom; each pre-tightening conical part is further provided with a deformation reserved notch. A central communicating pipe is supported between the sealing bottoms of the two pipe end adapters, the outer wall of the water supply and drainage pipeline is sleeved in a locking fixing piece, a conical slope is arranged on the inner side wall of the locking fixing piece, the two locking fixing pieces are in threaded connection with each other, and the pre-tightening conical parts are tightened through the conical slope to lock and fix the water supply and drainage pipeline. The connecting end of the water supply and drainage pipeline does not need to be subjected to configuration treatment, a locking and fixing mode is adopted, no weld joint or deformation exists, and the service life is longer.

Description

technical field [0001] The invention relates to the field of pipe connection, in particular to a water supply and drainage pipe connection structure and a connection method. Background technique [0002] At present, the connection of water supply and drainage pipes needs to be configured at the connection end, such as welding the flange before fixing it with bolts, or bending the snap ring before fixing it with pipe collars. On the one hand, this configuration process increases the manufacturing process, on the other hand, whether it is welding or bending, the strength or consistency of the water supply and drainage pipes at the processed position will be worse than that of the unprocessed position, and the weld cracks Thinning and bending will reduce the service life of the connection position of the water supply and drainage pipes. [0003] Therefore, how to ensure that the connection end of the water supply and drainage pipe is not configured, that is, to develop a reaso...

AI Technical Summary

Problems solved by technology

On the one hand, this configuration process increases the manufacturing process, on the other hand, whether it is welding or bending, the strength or consistency of the water supply and drainage pipes at the processed position will be worse than that of the unprocessed position, and the weld cracks and bending and thinning will reduce the service life of the connection position of the water supply and drainage pipes

Images