Manual and automatic integrated rotary cleaning pre-filter

Abstract

The invention relates to a manual-automatic integrated rotary cleaning pre-filter which comprises a machine head, a filter bottle, an assembling cavity formed in the bottom of the filter bottle, a sewage discharging assembly arranged in the assembling cavity, a filtering mechanism fixedly arranged in the filter bottle, and a scraping and washing framework arranged outside the filtering mechanism in a sleeving manner, and protruding scraping and washing pieces are arranged on the inner wall and / or the outer wall of the scraping and washing framework; a water flow conversion piece is arranged at the position, close to the water inlet of the machine head, of the filtering mechanism, and the water flow conversion piece can enable water flow of water entering the machine head to rotate. The scraping and washing framework is rotationally connected with the filtering mechanism through a first rotary connecting structure, the scraping and washing framework can independently rotate relative to the filtering mechanism in the downstream direction of water flow under the impact of water flow, and the scraping and washing framework can synchronously rotate along with the sewage discharging assembly under the driving of external force through the cooperation of the first rotary connecting structure and a second rotary connecting structure. The self-rotating scraping and washing structure is optimized, installation, use and maintenance are convenient, machining cost is low, and faults are not prone to being caused.

Description

technical field [0001] The invention relates to a pre-filter for manual and automatic rotary cleaning, which belongs to the technical field of water purification equipment. Background technique [0002] The pre-filter in the prior art includes: a machine head, a filter bottle connected to the machine head at the upper end, and a drain ball valve connected to the lower end of the filter bottle. Net (collectively referred to as filter mechanism). During use, water flows into the gap between the filter bottle and the filter screen from the water inlet of the machine head, flows into the center of the filter screen frame after being filtered by the filter screen, and then flows from the center of the filter screen frame to the water outlet of the machine head. Pre-filters have now penetrated into thousands of households and high-end hotels. [0003] During the use of the pre-filter, it is necessary to clean the impurities attached to the surface of the filter from time to time...

AI Technical Summary

Problems solved by technology

[0003] During the use of the pre-filter, it is necessary to clean the impurities attached to the surface of the filter from time to time, and then discharge them through the drain valve. The efficient operation of the scraping structure is very important. In the prior art, there is a motor-driven The scraping structure driven by the impeller, etc., how to use the impact force of the water flow itself to realize the self-rotation scraping research is more, the scraping and washing of the prior art has the disadvantages of complex structure and high cost.

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