Spraying device of dish-washing machine

Abstract

The invention discloses a spraying device of a dish-washing machine. The spraying device comprises a spraying arm, a water inlet pipe, an adjusting assembly and a flow guide structure, the water inletpipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a spraying chamber communicated with the water inlet pipe; the adjusting assembly is used for maintaining the stable change of the pressure value in the spraying chamber at the initial stage that the washing liquid flows into the spraying chamber; and the flow guidestructure is used for guiding and buffering the flow of the washing liquid in the spraying chamber. The invention provides a spraying device of a dish washing machine. According to the one-way valveprinciple, in the initial stage of water injection in the spraying arm, it can be guaranteed that air in the spraying arm is exhausted rapidly without resistance, the influence on a water injection sensor in an original spraying arm is eliminated, and after the water level reaches a certain height, the one-way valve structure overcomes the gravity of the one-way valve structure under the action ofwater pressure and is closed and sealed; meanwhile, the influence of too fast flowing of the washing liquid on the pressure in the spraying arm is avoided, the work of the water outlet sensor is influenced, and then the normal use of the spraying arm is influenced.

Description

technical field [0001] The invention belongs to the field of household appliances, and in particular relates to a spray device for a dishwasher. Background technique [0002] With the improvement of living standards, people have higher and higher requirements for the quality of life, and thus have higher and higher requirements for the quality, performance, humanization of use, and intelligent operation of daily necessities. Dishwashers have also entered people's lives as a convenient daily necessities. On the dishwasher, the shower is one of the key components of the dishwasher, which directly affects whether the tableware can be washed clean. [0003] At present, the water jetting part inside the dishwasher is mainly based on the spray arm structure, and the spray arm is one of the important parts inside the dishwasher, which is driven by water flow to rotate in a directional way to spray water to wash the tableware. At the beginning of the dishwasher filling the spray a...

AI Technical Summary

Problems solved by technology

[0006] Although the above-mentioned prior art obtains the precise rotation speed of the spray arm through the magnetic sensitive switch to a certain extent, thereby avoiding the generation of errors and ensuring the air pressure in the waterway by setting an exhaust structure in the waterway, none of them solves the problem of the present application. When the spray arm is filled with water, because the spray hole on the spray arm is too small, when the washing liquid flows in the spray arm, the air in the spray arm passes through the spray hole at high speed, causing the internal air resistance to increase sharply, which in turn leads to The sensor that detects the amount of water injected misjudged the rotational power of the motor, and when the washing liquid first entered the spray chamber, the impact force was relatively large, which would cause certain damage to the inner wall of the spray arm, etc.

[0007] Therefore, it is necessary to improve the deficiencies and defects of the prior art, and provide a spraying device for a dishwasher. Using the principle of a one-way valve, in the initial stage of water injection in the spraying arm, it can ensure that the air in the spraying arm is quickly and without The discharge of resistance eliminates the influence of the original spray arm on the water injection sensor. When the water level reaches a certain height, under the action of water pressure, the one-way valve structure overcomes its own gravity and closes and seals; at the same time, it also avoids washing The impact of the excessive flow of liquid on the pressure in the spray arm affects the work of the water outlet sensor, which in turn affects the normal use of the spray arm

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