Coupling device with foldable sealing pipe

Abstract

The invention relates to a coupling device with a foldable sealing pipe. The coupling device comprises a sewage pump, a coupling base, a coupling flange, a guide rail and the foldable sealing pipe; the bottom of the guide rail is fixed to the coupling base; a discharge flange is arranged at one end of the sewage pump; the foldable sealing pipe is installed on the right side of the discharge flange; the coupling flange is installed at the right end of the foldable sealing pipe; the discharge flange, the foldable sealing pipe and the coupling flange are fixed by bolts; the coupling flange can slide downward to the bottom along the guide rail, so that the coupling base communicates with the discharge flange; and the foldable sealing pipe is in the folding state before being used for the firsttime, and is in the extending state after being used. The foldable sealing pipe is installed, so that the effect that leakage does not happen between the coupling flange and the coupling base when the sewage pump is in work can be achieved; and the coupling device is stable and reliable, simple in structure, convenient to operate, and economical and practical.

Description

technical field [0001] The invention relates to the technical field of urban water supply and drainage, in particular to a coupling device with a foldable sealing pipe. Background technique [0002] With the development of urbanization, the urban population is increasing, and the construction of urban infrastructure is also accelerating, especially for the treatment of sewage, rainwater and industrial wastewater. Among them, the most widely used equipment is the submersible sewage pump. The submersible sewage pump operates underwater, and the water outlet needs to be connected with the water outlet flange. When the sewage pump fails and needs to be repaired, the sewage in the foundation pit will bring great inconvenience to the maintenance, or it cannot be repaired. The coupling device that came into being accordingly solved this problem very well, so that the water pump and the water outlet pipeline are actively connected. When the water pump needs to be overhauled, the wat...

AI Technical Summary

Problems solved by technology

[0002] With the development of urbanization, the urban population is increasing, and the construction of urban infrastructure is also accelerating, especially for the treatment of sewage, rainwater and industrial wastewater. Among them, the most widely used equipment is the submersible sewage pump. The submersible sewage pump operates underwater, and the water outlet needs to be connected with the water outlet flange. When the sewage pump fails and needs to be repaired, the sewage in the foundation pit will bring great inconvenience to the maintenance, or it cannot be repaired.

The coupling device that came into being accordingly solved this problem very well, so that the water pump and the water outlet pipeline are actively connected. When the water pump needs to be overhauled, the water pump can be lifted out of the sewage at any time, and it can be well cleaned when the overhaul is completed. Put the water pump into the sewage and connect it with the outlet pipe. However, the coupling devices used in the market have poor sealing performance, especially when some high-lift pumps are started, the gap between the water pump and the coupling device will increase, resulting in a large amount of sewage leakage , which not only affects the efficiency of the water pump, but in serious cases, the water pump will burn the motor, resulting in large economic losses

Images