Liquid dispensing device with layered structure seal strip and ball thrust bearing

Abstract

The invention discloses a device which is provided with layered structure type sealing strips and a ball thrust bearing and is used for supplying liquid through air pressure. The device comprises a pressure air supply device (7), a pressure cavity (8), a pressure supply pipe (9), a liquid supply pipeline (10) and a drawing filtering device (20), wherein the pressure air supply device (7) is used for supplying pressure to the pressure cavity (8) through the pressure supply pipe (9); the pressure cavity (8) can pressurize liquid in the pressure cavity (8) and supply the liquid through the liquid supply pipeline (10); the drawing filtering device (20) is arranged at the inner side end of the liquid supply pipeline (10) and is used for filtering the liquid when the liquid supply pipeline (10) draws the liquid from the pressure cavity (8); the outer side end of the liquid supply pipeline (10) is used for supplying the liquid in a flowing manner; a liquid inlet (81) is formed in the top of the pressure cavity (8).

Description

technical field [0001] The invention relates to a device for supplying liquid by air pressure, and more particularly relates to a device for supplying liquid by air pressure which can automatically remove flocs. Background technique [0002] The device that uses air pressure to give liquid is a kind of equipment that sprays liquid widely used in agriculture, green land maintenance and industry. The water quality used by the device that uses air pressure to give liquid varies according to the water source. Therefore, in order to prevent the device that uses air pressure to give liquid from being affected by impurities in the liquid, the device that uses air pressure to give liquid The end of the draw line often has a filter structure. [0003] However, due to the suction formed by the device that uses the air pressure to give the liquid during operation, it is easy to absorb a large amount of impurities near the end of the liquid delivery pipeline; Over time, these floccule...

AI Technical Summary

Problems solved by technology

However, in some cases, such as the maintenance of urban lawns, devices that use air pressure to deliver liquid need to draw liquid streams from some alternate liquid source, such as recycled rainwater, greywater, or even untreated ground surface Runoff water, and these devices that use air pressure to give liquid do not have the conditions for regular manual maintenance. Therefore, in this case, it is urgent to remove impurities to ensure the normal operation of the device that uses air pressure to give liquid. need

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