Pipeline sealing connecting part

Abstract

The invention discloses a pipeline sealing connecting part. The pipeline sealing connecting part comprises a straight pipe and a connecting pipe. An embedded groove is formed in the front end of the connecting pipe in a sunken mode. The rail end of the straight pipe extends into the embedded groove. An annular square groove is formed in the outer wall face of the embedded groove in a sunken mode. An annular steel belt is arranged in the annular square groove. Sawteeth pointing to the straight pipe obliquely are arranged on the inner side of the annular steel belt. A first annular arc groove is formed in the inner wall face of the embedded groove. A hollow sealing ring is arranged in the first annular arc groove. The hollow sealing ring is filled with thermo-sensitive gas. In this way, according to the pipeline sealing connecting part, the sawteeth are used for being clamped into the outer wall of the straight pipe, the straight pipe and the connecting pipe are prevented from loosening, the hollow sealing ring is frozen before mounting and thus can be placed in the first annular arc groove conveniently, during usage, freezing is relieved, the thermo-sensitive gas is affected by heat and drives the hollow sealing ring to expand, the sealing effect is improved, connection is rapid, and the sealing effect is good.

Description

technical field [0001] The invention relates to the field of pipeline sealing connection, in particular to a pipeline sealing connection piece. Background technique [0002] The connection of plastic pipes is usually carried out by hot melt or screw thread. The hot melt connection has good sealing performance, but there are requirements for the material of plastic pipes, and the construction is more complicated. [0003] The threaded connection of plastic pipes needs to process threads at the end of the plastic pipes and then connect them. It is not suitable for on-site construction. Usually, the thread processing is completed at the factory, which cannot be intercepted, and the scope of application is limited. Contents of the invention [0004] The technical problem mainly solved by the present invention is to provide a pipeline sealing connector, which improves the connection convenience and sealing performance, and facilitates the interception and construction of pipeli...

AI Technical Summary

Problems solved by technology

[0002] The connection of plastic pipes is usually carried out by hot melt or screw thread. The hot melt connection has good sealing performance, but there are requirements for the material of plastic pipes, and the construction is more complicated

[0003] The threaded connection of the plastic pipe needs to process the thread at the end of the plastic pipe and then connect it. It is not suitable for on-site construction. Usually the thread processing is completed at the factory and cannot be intercepted. The scope of application is limited.

Images