Electromagnetic pump

Abstract

The invention provides an electromagnetic pump which comprises a stator assembly, a casing pump case assembly and screws. The casing pump case assembly is composed of a casing pipe, a casing pipe spring, a plug spring, a piston, a piston sealing ring, a plug, a check ring, a sleeve inner sealing ring, a sleeve, a sleeve outer sealing ring, a pump sealing ring, a one-way valve, a one-way valve spring and a pump case. The electromagnetic pump is characterized in that a protrusive boss is arranged on the bottom of a casing pipe inner cavity, another protrusive boss is arranged on the bottom of an inner cavity of the pump case, due to the fact that the casing pipe spring is positioned by the protrusive boss on the bottom of the casing pipe inner cavity, the one-way valve spring is positioned by another protrusive boss on the bottom of the pump case inner cavity, noise is reduced effectively, and the service life of the casing pipe spring and the service life of the one-way valve spring are prolonged. In addition, the electromagnetic pump is simple and reasonable in structure, low in noise and long in service life.

Description

technical field [0001] The invention relates to an electromagnetic pump, which is mainly used in electromagnetic pumps in household appliances such as coffee machines, steam irons and water dispensers. Background technique [0002] Solenoid pumps now used in coffee machines, steam irons and water dispensers, as shown in the accompanying drawings Figure 4 and Figure 6 shown in Figure 4 Because there is no protruding round platform at the bottom of the inner cavity of the pump casing to position the one-way valve spring, the rapid swing and instability of the one-way valve spring during the rapid drainage process of the electromagnetic pump makes the electromagnetic pump work noisy. High, and with the prolongation of use time, the check valve spring is seriously inclined, the elastic coefficient changes, and the life of the check valve spring is reduced; Figure 6 Because there is no protruding round platform at the bottom of the inner cavity of the sleeve to position the ...

AI Technical Summary

Problems solved by technology

[0002] Solenoid pumps now used in coffee machines, steam irons and water dispensers, as shown in the accompanying drawings Figure 4 and Image 6 shown in Figure 4 Because there is no protruding round platform at the bottom of the inner cavity of the pump casing to position the one-way valve spring, the rapid swing and instability of the one-way valve spring during the rapid drainage process of the electromagnetic pump makes the electromagnetic pump work noisy. High, and with the prolongation of use time, the check valve spring is seriously inclined, the elastic coefficient changes, and the life of the check valve spring is reduced; Image 6 Because there is no protruding round platform at the bottom of the inner cavity of the sleeve to position the sleeve spring, the electromagnetic pump also makes the sleeve spring seriously tilted during the rapid drainage process, the elastic coefficient changes, and the life of the sleeve spring is reduced. ; This structure makes the electromagnetic pump have high noise, poor safety performance and low service life. Such an electromagnetic pump cannot meet the continuously updated industry requirements

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