How flow control devices work

Abstract

The invention provides a working method of a flow control device. The flow control device is mainly formed by a jet flow mixer, a reset valve, and a flow valve. When water starts to be fed to a washing machine, the reset valve is pressed down and a negative pressure is formed in a narrow part of the jet flow mixer, then the reset valve is sucked by the negative pressure and is kept open; the negative pressure is transferred to the flow valve through the reset valve; the flow valve is opened so that a passageway through which detergents go to the jet flow mixer is opened; under the effect of the negative pressure, the detergents continuously flow into the jet flow mixer and are mixed with water to form liquid detergents with proper concentrations. After water feeding is stopped, the reset valve moves upwards and resets to a closed state under the effect of a reset spring. When water is fed again, if the reset valve is not pressed, then the flow valve is not opened and detergents are not sucked in. Detergents can be added only in a required stage by pressing the reset valve.

Description

technical field [0001] The invention relates to a working method of a flow control device capable of controlling the amount of detergent added during the water inlet process of a washing machine so that the detergent and water can be mixed to form a laundry liquid with a suitable concentration, and belongs to the detergent feeding technology of a washing machine. Background technique [0002] The principle of washing clothes: no matter machine washing or hand washing, the ideal way is to make the washing machine into a good concentration and uniform washing liquid first, then put the clothes to be washed into agitation, soak in the washing liquid, use the washing liquid The tension effect separates the dirt from the clothes, so that the cleaning effect can be more effectively played. [0003] The correct washing method with the washing machine should be: first turn on the machine and turn on the water, put in detergent and water to fully mix to form a washing liquid with a u...

AI Technical Summary

Problems solved by technology

Because the washing liquid with a uniform concentration is not prepared in advance and then soaked in the clothes, after the clothes are saturated with water, it is difficult for the washing liquid to penetrate into the fibers of the clothes, which reduces the cleaning effect of the washing liquid, so it often appears that the clothes are completely washed. In addition, due to the high concentration of detergent in contact with some clothes for a long time, even the phenomenon of decolorization

[0005] Although many washing machines have the function of putting detergent through the detergent tank, most of these designs just put the detergent to be used in this laundry into the detergent tank before starting the washing machine to enter the water. In the washing machine, a part of the water flow is used to impact the detergent tank to simply dilute the detergent in it and then pour it into the washing bucket, so that the washing liquid is not fully mixed and uniform in concentration.

Moreover, only the amount of detergent needed for laundry can be added to the detergent tank at a time

[0006] In addition, most of the front-loading washing machines are fully airtight when they work. It is basically impossible to drain the water to make a uniform concentration of washing liquid before putting in the clothes, because the water will overflow when the door is opened.

[0007] In the patent document No. 201110120512.8, a detergent feeding and mixing device is disclosed. A duckbill-shaped discharge nozzle is placed in the discharge port of the bucket, and the detergent is squeezed into the turbine for stirring under the action of the motor. The advantage is that it can mix a uniform washing liquid. The disadvantage is that the elasticity will be weakened after long-term use, and the sealing performance of the duckbill-shaped discharge nozzle is poor. May also be automatically left in the turbo mixer

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