Water-saving machine for providing secondary water for flushing toilets in public washroom

Abstract

The invention provides a water-saving machine for providing secondary water for flushing toilets in a public washroom. The water-saving machine comprises a water collecting box and a high-position water tank. A secondary water inflow pipeline is connected to a water inlet of the water collecting box. A secondary water source pipe is connected to the water inlet of the water collecting box. A filtering device is arranged in the water collecting box and comprises a filter screen. The filter screen divides the water collecting box into a filtering space and a water collecting space. A secondary water drain opening is formed in the lower portion of the water collecting space, and the upper portion of the water collecting space is connected with a secondary water conveying pipeline and leads to a water inlet of the high-position water tank. A conveying pump is arranged on the conveying pipeline. The water collecting space is provided with a liquid level controller. The high-position water tank is arranged above a toilet flushing water pipe, a water outlet is connected with a toilet flushing branch pipe at the toilet position, and a liquid level controller is arranged in the high-position water tank. The liquid level controller in the water collecting space and the liquid level controller in the high-position water tank are correlated with the conveying pump, and when the secondary water level in the water collecting tank is higher than the set water level and the liquid level of the high-position water tank is lower than the set water level, the conveying pump is started and stopped until the liquid level in the high-position water tank reaches the set high water level. According to the water-saving machine, the secondary water is used for flushing the toilets in the public bathroom.

Description

technical field [0001] The invention belongs to the technical field of secondary water utilization, and provides a system for collecting secondary water for flushing toilets for secondary water filtration and automatic cleaning and filtering devices, and more specifically provides a system for providing secondary water for flushing toilets in public toilets Water saving machine. Background technique [0002] In the prior art, there are many techniques for flushing toilets with secondary water, but in practical applications, very few are really used, and in public toilets, there are even fewer applications for flushing toilets with secondary water. The research and practice of secondary water utilization in recent years have shown that in order to make secondary water acceptable to people, it should not cause additional troubles to people during use. For public toilets, it is generally believed that the secondary water is the drainage of the sink. However, as public places ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that every time the toilet is flushed, the water pump is activated, which produces a lot of noise. In addition, the water pump is frequently opened and closed, and the service life is reduced.

Another problem with flushing with secondary water is the filtration of the secondary water before it enters the tank

In the prior art, the filter screen in the water collection tank is located under the water inlet in the water collection tank, and the water collection tank is usually closed, so the filter screen therein will be more laborious to clean, which will bring a lot of trouble to the user. big trouble

[0003] How to enable the filter in the water collection tank to filter out the tiny impurities in the secondary water, but also to automatically restore the filtering function of the filter without cleaning is a difficult problem in the prior art, and it also hinders the secondary water utilization system. Key issues for scaling up

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