Reinforced sealing structure for working water cavity of reverse osmosis booster pump

Abstract

The invention discloses a reinforced sealing structure for a working water cavity of a reverse osmosis booster pump. The reinforced sealing structure comprises a diaphragm and a diaphragm valve cover covering the diaphragm. Three independent cavities are divided on the diaphragm and the diaphragm valve cover. The diaphragm is provided with convex rings, and each convex ring surrounds the corresponding cavity. The bottom of the diaphragm valve cover is provided with grooves matched with the convex rings to enable all the cavities to be kept sealed. A first protrusion structure is arranged in the middle of each groove of the diaphragm valve cover, and each first protrusion structure surrounds the periphery of the corresponding independent cavity. The reinforced sealing structure for the working water cavity of the reverse osmosis booster pump is good in sealing effect and long in service life.

Description

【Technical field】 [0001] The invention relates to a reinforced sealing structure for a working water chamber of a reverse osmosis booster pump. 【Background technique】 [0002] At present, the diaphragm booster pumps in the water purifiers on the market still have product defects such as leakage and abnormally low pressure. The reason for these phenomena is often the poor structural design. [0003] In the market, the sealing structure between the pressurized water chamber of the booster pump and the adjacent pressurized water chamber, such as figure 2 As shown, the pump rotates through the rotor of the motor to drive the movement of the eccentric rocking wheel, and under the action of the eccentric rocking wheel, the rotating motion of the motor is converted into the reciprocating motion of the eccentric rocking wheel. The diaphragm reciprocates along the axial direction, thereby reciprocatingly changing the volume of the water pump. The inlet forms a vacuum to absorb wate...

AI Technical Summary

Problems solved by technology

However, after the actual production tolerance control and long-term work are affected by environmental factors such as temperature and humidity, such as Figure 22 The sealing part a, b and c of the elastic diaphragm of the middle structural part, because the bottom of the sealing groove is a flat seal, will cause insufficient compression and short sealing path length. When the pump is working, the internal pressure water will pass through part d , f leakage, resulting in leakage of the structural sealing parts a and c, especially the sealing part c between the pressurized water chamber and the adjacent pressurized water chamber, causing serious leakage, which makes the working water chamber depressurized

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