Self suction clean water pump

Abstract

One kind mainly is suitable to the family pumps the well water self-absorption the clear water pump, is the electrical machinery and pumps the module two major part to compose, pumps the module by in pump housing and outside the pump housing, and pumps between the group in the electrical machinery to install the connection flange, connects the flange respectively be the beginnings and ends board and the intermediate, the flange middle system has the connection wall and passes the hole, its flange intermediate connection wall is on the circular arc connection wall and under the circular arc connection wall, on the circle connects the wall the circle arc length alpha to be bigger than 90. This clear water pump connection flange intermediate only has the circular arc connection wall, and on the circular arc long is bigger than 90, in pumps opens feeds the water fashion to the flange on water to two sides class, cannot enter in the electrical machinery bearing, the effective protection bearing, has protected the electrical machinery, has solved the serious flaw which self-absorption the clear water pump exists since long ago.

Description

technical field [0001] The invention relates to a self-priming clean water pump, in particular to a flange design of the self-priming clean water pump. This pump is mainly suitable for domestic use. Background technique [0002] A class of self-priming pumps that are mainly suitable for households, such as pumping well water, and clean water pumps that can also pump water from rivers, lakes, and ponds. They are more convenient to use and generally more compact in size. However, one of the characteristics of the self-priming pump when it is used is that it needs to "feed water" first. After the water is fed, the air in the pump is discharged before the water suction operation is started. The diameter of the water feeding hole made on the pump is relatively small. When the water is poured in, it is generally unavoidable to spill outside, especially on the connecting flange between the pump and the motor. The connecting flange is a foundry part, and the ...

AI Technical Summary

Problems solved by technology

The diameter of the water feeding hole made on the pump is relatively small. When the water is poured in, it is generally unavoidable to spill outside, especially on the connecting flange between the pump and the motor. The connecting flange is a foundry part, and the structure of the flange has There are two end plates, one end plate is connected to the motor, the other end plate is connected to the pump casing, there is a connecting intermediate between the two end plates, the center of the flange is a cavity for the main shaft to pass through, and the edge of the flange intermediate is made There are connecting outer walls, the connecting outer walls described in the prior art are three connecting ribs, which are very narrow, but the through holes are very large (it is easy to turn sand and remove sand during manufacture), so the water dripping on the flange will Into the bearings in the flange, causing rust and damage to the bearings, and more seriously, affecting the motor

Therefore, due to structural defects, the connecting flange of the self-priming clean water pump causes damage to the motor and bearings, and affects the service life of the pump is an unresolved problem.

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