Clear water pump capable of preventing abnormal use

Abstract

The invention discloses a clear water pump capable of preventing abnormal use. The clear water pump comprises a clear water pump main body, and further comprises a switch power supply, a first detecting circuit, a second detecting circuit and a water quality probe; a connecting pipe is arranged at the middle part of the lower end of a volute of the clear water pump main body; the switch power supply, the first detecting circuit and the second detecting circuit are mounted on a circuit board; the circuit board is mounted at the back side end in a shell of the clear water pump main body; the water quality probe is mounted in the connecting pipe at the middle part of the lower end of the volute of the clear water pump main body; and the switch power supply, the first detecting circuit, the second detecting circuit, the water quality probe and the clear water pump main body are connected by leads. Users can be prevented from using the clear water pump main body as a sewage pump, and the users can be prevented from shearing off or shortly connecting the leads for connecting the first and second detecting circuits with the water quality probe to cause lost of a control effect of the clear water pump. The damage probability of the clear water pump main body is reduced; and the better application prospect is achieved.

Description

technical field [0001] The invention relates to the field of fluid machinery, in particular to a clean water pump capable of preventing abnormal use. Background technique [0002] The water pump is a very widely used appliance. The water pump is classified according to the working environment, mainly including sewage pumps and clean water pumps. Sewage pumps are mainly used for pumping heavy and impurity sewage, which has the characteristics of high power and power consumption. Because there are more impurities in sewage, the gap between the impeller and the volute is larger than that of clean water pumps. Therefore, sewage pumps The heads are not high, and there are limitations in the use where high heads are required. The clean water pump is designed to achieve the highest working efficiency, so the gap between the impeller and the volute is smaller than that of the sewage pump, and the power is relatively small. It has the characteristics of high lift and high efficiency...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of existing clean water pumps that cannot prevent end users from using clean water pumps as sewage pumps due to structural limitations, which may easily cause damage to clean water pumps and cause economic losses for manufacturers and distributors, the present invention provides a clean water pump Inside the housing of the main body, the first detection circuit and the second detection circuit are installed, and a water quality probe is installed at the lower end of the volute of the clean water pump body. In actual use, if the water pumped by the clean water pump body is clean water, the clean water pump The body can work normally with electricity. When the pumped water is sewage, the stator winding of the clean water pump body can be automatically opened, so as to protect the clean water pump body and effectively prevent the user from connecting the water quality probe with the first A clean water pump that can prevent abnormal use when the wires connected to the detection circuit and the second detection circuit are cut off or shorted, causing the main body of the clean water pump to fail to work normally.

Images