Rotating spray arm for dish-washing machine

Abstract

The invention discloses a rotating spray arm for a dish-washing machine, which is structurally characterized in that: a lid is provided with a plurality of tapered nozzles, and the side face of the lower part of each tapered nozzle is provided with a plurality of small holes; the lid is fixed on a water tank; the underside of the water tank is connected with a water feed pipe; the lower end of the water feed pipe is connected with a hollow rotating shaft; a water inlet pipe is inserted into a water sealing ring on the inner side of the lower end of the hollow rotating shaft; the upper sectionof the water inlet pipe is provided with a flange; the hollow rotating shaft is wrapped with a copper bearing bush, and a bearing bracket is fixed on the flange; an air inlet pipe extends to the inside of the water inlet pipe; the sharp part of each tapered nozzle is connected with a capillary air pipe, and the other end of the capillary air pipe is connected to the outside of an air feed pipe; the air feed pipe is fixed on the underside of the lid; and the lower inside of the air feed pipe is provided with an air sealing ring, an outlet of the water inlet pipe is provided with a supporting frame, and the upper section of the air inlet pipe is inserted into the air sealing ring after stretching out from a central hole of the supporting frame. When in use, the air in the air inlet pipe is sprayed out from the sharp parts of the tapered nozzles through the air feed pipe and the capillary air pipes so as to form air bubbles; and the water in the water inlet pipe enters the tapered nozzles through the water feed pipe and a water entering tank and then is sprayed out with the air bubbles in the tapered nozzles so as to form atomized water for washing dishes.

Description

Technical field: [0001] The invention relates to a rotary spray arm of a dishwasher. Background technique: [0002] Home appliance supermarkets sold spray dishwashers in the past. Since the nozzles of the rotating spray arm spray straight water columns, the impact force is not enough and the rotating force is small. The sealing ring of the rotating spray arm has to use a nylon pad with low friction. , It is easy to leak water and reduce the water pressure of the water outlet of the nozzle; therefore, the cleaning efficiency of this kind of dishwasher is very low, and the tableware cannot be cleaned. It has disappeared from the home appliance supermarket, but this kind of dishwashing machine can still be purchased on the Internet. machine. Invention patent ZL200610080056.8 "A Dishwasher Cleaning Device" extends the outlet pipe of compressed air into the top of the rotating spray arm, and the compressed air sprayed out forms a large number of air bubbles in the spray arm, and...

AI Technical Summary

Problems solved by technology

[0003] The invention can overcome the defect that the mist water sprayed by each nozzle of

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