Regulator pump and water purifier

Abstract

The invention provides a stabilized pressure pump and a water purifier. The stabilized pressure pump is provided with a shell body, wherein the shell body is fixed to a base body through a fixing piece, a water outlet pressure plate and a diaphragm piece are arranged between the shell body and the base body, at least one first surface of the shell body abuts against at least one second surface of the diaphragm piece, at least one first flange which protrudes in the direction of the diaphragm piece is arranged on the first surface, and the first flange is pressed on the second surface. The water purifier is provided with a machine shell, and the stabilized pressure pump, a filter element and the like are arranged in the machine shell. The stabilized pressure pump is simple in sealing structure and simple in assembling process, and sealing between the shell body and a base can be effectively achieved.

Description

technical field [0001] The invention relates to the field of water purification equipment, in particular to a water purifier and a pressure stabilizing pump used in the water purifier. Background technique [0002] With the improvement of people's living standards and the development of water purification technology, the sanitation of drinking water has become a focus of attention, and more and more water purifiers have entered ordinary families. The existing water purifier has a casing, the casing is provided with a water inlet port and a water outlet port, the water inlet port is connected with a water supply terminal such as a water tap, and purified water flows out through the water outlet port. [0003] Usually, the casing of the water purifier is equipped with multi-stage filter elements, and a stabilized pressure pump is installed between the two-stage filter elements. As the core component of the water purifier, the stabilized pressure pump is often of great importan...

AI Technical Summary

Problems solved by technology

[0007] However, after the long-term operation of the regulator pump, the sealing ring 19 will creep under the action of stress for a long time, and the creep will make the elastic deformation part of the sealing ring 19 disappear, and the sealing performance will decrease

Moreover, when the regulator pump is working, the diaphragm 17 reciprocates up and down about 2000 times per minute. When the sealing ring 19 is hit for a period of time, the thickness of the sealing ring 19 will become thinner, and eventually the sealing ring 19, diaphragm 17 and The pump casing 10 forms a leakage gap 25, such as Figure 4 As shown, the water in the stabilized pump leaks from the leakage gap, causing the stabilized pump to leak

Images