Flow valve

Abstract

A flow valve can be applied to a jet flow mixer in a Venturi structure. A narrow part of the jet flow mixer is provided with a liquid absorption nozzle and an air absorption nozzle both outwardly projected and communicated with the interior of the jet flow mixer; the flow valve is connected with the jet flow mixer via the liquid absorption nozzle and the air absorption nozzle; negative pressure is produced in the narrow part of the jet flow mixer when water flows; an air pressure bag in the flow valve can be absorbed by the produced negative pressure, so a needle valve can be lifted up; a laundry detergent channel is built from a laundry detergent container to the jet flow mixer; the laundry detergent in the laundry detergent container can be absorbed via the negative pressure to enter the jet flow mixer to be mixed with water; flow amount of the laundry detergent is matched with water flow amount; larger water flow can produces larger negative pressure and more laundry detergent can be absorbed; and water and the laundry detergent can be synchronously mixed to form washing liquid with even concentration.

Description

technical field [0001] The invention relates to a flow valve for controlling the flow of detergent in a washing machine, which matches the flow of detergent with the flow of water and synchronously mixes them into laundry liquid with uniform concentration, which belongs to the detergent feeding technology of washing machines. Background technique [0002] The principle of washing clothes: Whether machine washing or hand washing is used, the ideal method is to make the laundry detergent into a good concentration and uniform laundry detergent, then put the clothes to be washed into the mix, soak the laundry detergent, and use the laundry detergent The tension effect separates the dirt from the clothes, so that the cleaning effect can be more effectively played. [0003] The correct washing method of the washing machine should be: first turn on the machine and turn on the water, put in the detergent and water to fully mix into a laundry liquid with a uniform concentration, and ...

AI Technical Summary

Problems solved by technology

Because the laundry detergent 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 laundry detergent to penetrate into the fibers of the clothes, which reduces the cleaning effect of the laundry detergent, so it often appears that the clothes are washed clean. 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 are equipped with the function of adding detergent, most of these designs only use part of the water flow to flush the detergent during the water intake process, dilute it and then inject it into the washing tub, so that the result is still not fully mixed and evenly concentrated laundry detergent

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

[0007] In the patent application number 201010179091.1, a detergent and disinfectant automatic adding device for washing machines is disclosed. The advantage is that it achieves relatively precise control. The disadvantage is that the detergent is added in stages during the water intake process, but It is still impossible to ensure that all the laundry liquids that enter the laundry bucket are of uniform concentration, and the structure is relatively complicated.

[0008] In the patent document No. 201110120512.8, a detergent injection 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 uniform laundry detergent. The disadvantage is that the elasticity will be weakened after long-term use. The duckbill-shaped discharge nozzle has poor sealing performance, and when the motor is not working, the detergent is under the action of gravity May also be automatically left in the turbo mixer

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