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 mechanism and a guide flow structure, the water inlet pipe is communicated with the spraying arm and provides spraying inlet water for the spraying arm; the spraying arm is provided with a first shell, a second shell and a spraying chamber which is formed by buckling the first shell and the second shell and is communicated with the water inlet pipe; the first shell and the second shell are in smooth transition connection with each other; the adjusting assembly is arranged on the inner wall of the spraying arm to form a part of the spraying chamber, and an included angle is formed between the adjusting assembly and the flowing direction of the washing liquid in the spraying chamber; and the flow guide structure is used for guiding and buffering the flow of the washing liquid in the spraying chamber. According to the spraying device of the dish-washing machine, at the initial stage of water injection in the spraying arm, it is guaranteed that air in the spraying arm is rapidly exhausted, meanwhile, washing liquid is guided, and the situation that the washing liquid enters too rapidly, and consequently the pressure in the spraying cavity is suddenly increased is avoided; a butt joint rib capable of being closed in a butt joint mode isarranged on the spraying arm, and food residue residues are stopped.

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 misjudges the rotational power of the motor. At the same time, because the upper and lower parts of the ordinary spray arm are connected by internal welding ribs, during use, it is easy to connect with food residues or grease and other dirt in the water, and the residues are easy to be in the water. It falls under the impact of water flow, blocks the spray port, reduces the cleaning effect, causes bad user experience, and because the washing liquid just enters the spray chamber, the impact force is relatively large, which will cause certain damage to the inner wall of the spray arm, etc.

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