External hydraulic pressure type water level control valve

Abstract

The invention relates to an external hydraulic pressure type water level control valve which comprises a valve body provided with a water inlet port and a water outlet port, and a valve plug; the water level control valve is characterized in that the valve plug is installed at the water outlet port and consists of a pressure reduction snappy spring cover and a rubber cap, wherein, the pressure reduction snappy spring cover is covered on the rubber cap, and an internal cavity is formed between the pressure reduction snappy spring cover and the rubber cap; a water outlet ostiole is opened on the pressure reduction snappy spring cover, and a water inlet ostiole is opened on the rubber cap; the valve body is also internally provided with a balancing pole which is provided with a rubber plug that can be used for plugging the water outlet ostiole on the pressure reduction snappy spring cover and a pressure restoring device. The external hydraulic pressure type water level control valve is made by fully utilizing the self-pressure of water as power and combining the lever principle, and has the advantages of small volume, convenient maintenance and replacement, low price, long service life as well as water and energy conservation, and can realize to automatically add water and shut water.

Description

technical field [0001] The invention relates to a water level control valve, in particular to an external water pressure type water level control valve. Background technique [0002] The automatic control devices of water inlet and water level of solar water tanks and other water tanks commonly used at present can only be installed in the water tanks such as float water level control valves, etc., and its volume is large, and it is inconvenient to maintain and replace. [0003] Now there is also a very advanced water temperature and water level intelligent controller. Its principle is to install a sensor in the solar water tank, and the temperature and water level information measured by the sensor is transmitted to the intelligent measuring and controlling instrument through the signal. Solenoid valve implements control, such as figure 1 shown. This instrument has the following technical defects: [0004] 1. The price is expensive, about 400 yuan, the average family cann...

AI Technical Summary

Problems solved by technology

[0004] 1. The price is expensive, about 400 yuan, the average family cannot afford it, and it has not been widely used;

[0005] 2. Must use electric energy, not energy-saving, and unsafe;

[0006] 3. The sensor is very picky about the use environment. When the calcium carbonate content in the water is large, it is very easy to form scale, whi

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