Dish washing machine and water pump structure thereof

Abstract

The invention provides a dish washing machine and a water pump structure thereof. The water pump structure comprises a pump shaft achieving the effect of transmitting power, a drainage impeller whichis arranged at the lower end of the pump shaft and supplies drainage power, and a drainage cavity communicated with a drainage water inlet pipe and a drainage water outlet pipe, the drainage impelleris located inside the drainage cavity, and a flow stop structure is radially fixed into the drainage cavity for guiding the flow direction of water flow pushed by the drainage impeller. Due to the radially fixed flow stop structure, when the water flow pushed by the drainage impeller flows, the flow stop structure stops water flow in the radial direction, the water flow is drained into the drainage water inlet pipe or the drainage water outlet pipe; due to forward rotation or reverse rotation of the drainage impeller, water flow inside the drainage cavity is pushed to rotate forwards or reversely, in other words, water flow impacts on the first drainage face or the second drainage face of the flow stop structure; due to the fact that the flow stop structure is fixedly arranged, the stop flow structure stability is facilitated, the drainage effect is ensured, and the problem that drainage loses efficacy is avoided.

Description

technical field [0001] The invention belongs to the technical field of dishwashers, and in particular relates to a water pump structure of the dishwasher and the dishwasher. Background technique [0002] With the improvement of living standards, consumers have higher and higher requirements for quality of life, and thus higher and higher requirements for product quality, performance, user-friendly use, and intelligent operation. As an excellent product, dishwashers have gradually entered people's lives. At present, dishwasher technology generally uses two pumps for the normal operation of dishwashers, that is, a washing pump, a drain pump, and two pumps for The independent pump body structure is driven by two motors to work the washing pump and the drainage pump respectively. The working principle of the dishwasher is that the washing pump pumps the water entering the inner tank of the dishwasher into the spray arm of the dishwasher. The spray arm is provided with a spray h...

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Problems solved by technology

[0005] Although the above-mentioned prior art has solved the problem of the dishwasher washing pump to a certain extent, the washing pump and the drainage pump are arranged as an integrated structure, but there is still the separation of the washing function and the drainage function, each performing its own duties, resulting in a complicated waterway structure , the water consumption is large, the water circulation is not high, and there is still a risk of clogging caused by accumulated residues in the pipeline. In addition, because the washing and drainage are in two systems, the washing pump occupies a large height direction, which leads to the dishwasher The corresponding reduction of the washing capacity will affect the washing efficiency and other problems; at the same time, the water pump is provided with a pump casing, so that the stains and dirty water remain inside the pump casing, which is not easy to clean; The drain valve or reversing valve with water flow action realizes the blocking of a waterway; because the drain valve or reversing valve needs to act to close the water outlet of a waterway, but due to the frequent action of the drain valve or reversing valve, The drain valve or reversing valve is often damaged or malfunctioned; and in order to install the drain valve or reversing valve, it is necessary to reserve a space for the draining valve or reversing valve in the housing cavity

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