A kind of drainage device and drainage working method

Abstract

The invention relates to a drainage device, which comprises a drain pipe connected to the drain port of a washing machine body; a blockage detection component arranged in the drain pipe; a control circuit board electrically connected to the blockage detection component; the blockage detection component includes at least two sets of blockage detection components Each blockage detector is electrically connected to the control circuit board, and the blockage detector includes two metal probes arranged at intervals, and a timer is provided on the control circuit board. The present invention also relates to a draining method. During the draining process of the cleaning machine, the time difference t of the conduction time of the adjacent two sets of blockage detectors is calculated according to the time when each set of blockage detectors appears a conduction state signal, and the current time difference t is calculated. The total drainage time T of the drainage process; then judge the location and degree of blockage in the drain pipe, and use different working power to drain water accordingly. The drainage device and the drainage method can accurately determine the clogging position and the clogging degree in the drainage pipe, and facilitate the formulation of the dredging strategy of the drainage pipe.

Description

technical field [0001] The invention relates to a drainage device, and also relates to a drainage working method. Background technique [0002] The cleaning machine needs to perform forced drainage after the cleaning work is completed. Because there are impurities in the cleaned water, it is easy to block the drain pipe of the cleaning machine. If the blockage in the drain pipe cannot be found in time, it will easily aggravate the blockage and increase the difficulty of unblocking. At the same time, when the washing machine refills with water, the water will overflow the cleaning tank. Therefore, it is necessary to effectively check the blockage of the drain pipe The alarm is the basis for ensuring the smooth operation of the drainage pipe. [0003] Authorized announcement number is CN204986433U (application number is 201520605247.6) Chinese utility model patent "An anti-backflow sewer pipe for buildings with intelligent alarm function", in which a bunch of metal probes are...

AI Technical Summary

Problems solved by technology

However, this structure cannot realize the judgment of the location of the blockage and the judgment of the current degree of blockage.

[0004] In the case of being unable to judge the clogged position of the drain pipe, the maintenance personnel cannot accurately select the appropriate tool to unclog it, and the work efficiency is low

And especially for the cleaning machine installed in the family, due to the limited installation space, dismantling and dredging the drainpipe will greatly increase the workload of dredging the drainpipe when the degree of clogging is relatively small. In severe cases, further dredging treatment will increase the difficulty of dredging

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