One-way valve for oral irrigator water pump

Abstract

The invention discloses a one-way valve for an oral irrigator water pump. The one-way valve comprises a valve cover, a connecting port and a valve body assembly, wherein the valve body assembly comprises a water inlet frame body and a water outlet frame body, a water inlet tongue piece is connected to the inner side of the water inlet frame body, a water outlet tongue piece is connected to the inner side of the water outlet frame body, an outlet of a water inlet pipe is located in the middle of one side of the water inlet tongue piece, an inlet of a water outlet pipe is located in the middle of one side of the water outlet tongue piece, a pump cavity water inlet is formed in the portion, on the other side of the water inlet tongue piece, of the connecting port, a pump cavity water outlet is formed in the portion, on the other side of the water outlet tongue piece, of the connecting port, a water outlet groove is formed in the bottom plane of a pit, on one side of the water outlet tongue piece, of the valve cover, and a water inlet groove is formed in the bottom plane of a pit, on the other side of the water inlet tongue piece, of the connecting port. According to the one-way valvefor the oral irrigator water pump, the opening and closing speed is relatively high, the performance is stable, the vibration noise is low, the cost is low, and the service life is long.

Description

technical field [0001] The invention relates to a one-way valve, in particular to a one-way valve used for a water pump of an electric dental flosser. Background technique [0002] A one-way valve is a directional control valve in which liquid or air flow can only flow in one direction and cannot flow in the opposite direction. The most commonly used is the spring check valve, and its working principle is: when the liquid flow or air flow is flowing forward, the compressed liquid or air overcomes the force of the spring 41 to make the check valve ball 42 move away from the valve port and open the valve; When the current or air flow wants to flow in the opposite direction, the check valve ball 42 is returned to the valve port under the force of the spring 41, and the valve port is closed (see figure 1 ). When this one-way valve is applied to a dental flosser, because the water pump piston of the electric dental flosser reciprocates at a high speed under the drive of the ecc...

AI Technical Summary

Problems solved by technology

When this one-way valve is applied to a dental flosser, because the water pump piston of the electric dental flosser reciprocates at a high speed under the drive of the eccentric wheel 2 and the transmission rod 1, the water inlet check valve ball 32 and the water outlet check valve valve The vibration noise of the ball 42 in the switching process is very large; the elasticity of the springs 31 and 41 decreases after long-term use, and the sealing performance is unstable; The switch sensitivity of the water inlet and outlet check valves 3 and 4 is not high, and a certain starting pressure (critical pressure) will be lost

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