Butt joint device of expansion joint of drain pipe

Abstract

The invention discloses a butt joint device of an expansion joint of a drain pipe, which is used for helping connection of pipe ends so as to form an extension type connection position. The extension type connection position is provided with an outer sleeve, an inner insertion pipe, and a sealing ring located between the outer sleeve and the inner insertion pipe; the inner insertion pipe is inserted at the place where an opening of the outer sleeve is located; a main pipe root part is connected at one end of the outer sleeve which is opposite to the opening; a first enclasping ring is arranged at the circumferential direction of the main pipe root part; a second enclasping ring is arranged at the circumferential direction of the outer side of the inner insertion pipe; the first enclasping ring is provided with a first spacing piece which is vertical to a pipe shaft; the second enclasping ring is provided with a second spacing piece which is vertical to the pipe shaft; and the first spacing piece and the second spacing piece are pulled in an opposite position and connected through a buckling and pulling rod device. The butt joint device enables the pipes to be butted and installed conveniently, reduces much installation difficulty, completely overcomes the disadvantage that the insertion cannot arrive at the right place through a manual force, ensures a tightened expansion pipe joint to have no water leakage or water seepage, and saves much time for guaranteeing the progress of an engineering project.

Description

technical field [0001] The invention relates to a docking device, in particular to a docking device for expansion joints of drainage pipes. Background technique [0002] At present, when installing telescopic pipe joints, because there is an "O"-shaped sealing ring in the interface, the positions of the two pipe ends that are docked cannot be relatively fixed, resulting in some pipes being inserted into the other pipe that is docked with more large ends, and some small ends of the pipes may be stretched out. The large end of the corresponding butt joint pipe is less, or even not inserted into the sealing ring, resulting in water leakage and water seepage. If the installed telescopic pipe joint is not fully inserted in place, it will easily cause water seepage or water leakage when the telescopic pipe expands with heat and contracts with cold. In severe cases, it will also lead to project rework or prolong the project progress. Contents of the invention [0003] Aiming at ...

AI Technical Summary

Problems solved by technology

[0002] At present, when installing telescopic pipe joints, because there is an "O"-shaped sealing ring in the interface, the positions of the two pipe ends that are docked cannot be relatively fixed, resulting in some pipes being inserted into the other pipe that is docked with more large ends, and some small ends of the pipes may be stretched out. The large end of the corresponding butt joint pipe is less, or even not inserted into the sealing ring, resulting in water leakage and water seepage

If the installed telescopic pipe joint is not fully inserted in place, it will easily cause water seepage or water leakage when the telescopic pipe expands with heat and contracts with cold. In severe cases, it will also lead to project rework or prolong the project progress

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