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 and an adjusting assembly, 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 firstshell 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; and the adjusting assembly is usedfor 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. According to the spraying device of the dish-washing machine, at the initial stage of water injection of the spraying arm, it is guaranteed that air in the spraying arm is rapidly exhausted without resistance, the influence of the interior ofan original spraying arm on a water injection sensor is eliminated, and after the water level reaches a certain height, self gravity is overcome under the action of water pressure, and the sprayingdevice is closed and sealed; a butt joint rib capable of being closed in a butt joint mode is arranged on the spraying arm, and food residues and other dirt are prevented from making contact with thewelding rib with the uneven surface to cause residues.

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. Falling under the impact of water flow, blocking the spray port, reducing the cleaning effect, causing poor user experience and other problems

Images