CN204690855U - A kind of automaton utilizing waste water flushing toilet - Google Patents

Abstract

The utility model relates to an automatic control device for flushing a toilet with waste water, which is composed of a waste water collection system and a toilet flushing measurement and control system, wherein the waste water collection system consists of a waste water collection basin, a waste water injection pipe, a filter screen, and two waste water storage tanks , waste water storage tank Unicom pipe, waste water overflow pipe, toilet flushing measurement and control system includes submersible pump, waste water water supply pipe, waste water control solenoid valve, waste water storage tank high water level detection probe, waste water storage tank low water level detection probe, toilet low Water level detection probe, toilet high water level detection probe, electrical automatic control box, tap water pipe, toilet upper water pipe, tap water control solenoid valve. The utility model is convenient to collect waste water, and makes full use of the narrow space of residents' family toilets. The waste water collection system adopts a series water tank structure, and uses the principle of connecting pipes to connect water tanks distributed in different positions in series, so that each water tank maintains the same water level.

Description

An automatic control device for flushing toilets with waste water

technical field

The utility model belongs to the field of kitchen and bathroom sanitary ware, in particular to an automatic control device for flushing a toilet with waste water.

Background technique

At present, the toilets of my country's urban residents' families and hotels are flushed with tap water, and each flush needs 6-8 liters of tap water (the water consumption of the old-fashioned toilets is larger), which wastes water resources and discharges a large amount of sewage. Domestic water in urban households is mainly composed of two parts, one part is water for flushing toilets, the other part is water for laundry, bathing and cleaning, and the wastewater generated by laundry, bathing and cleaning is alkaline water. It can meet the requirements of flushing toilet. Therefore, in recent years, research on flushing toilets with waste water from bathing and cleaning has attracted much attention.

The full-automatic waste water that Qin Hui et al researches utilizes toilet, and the patent publication number is CN200955191, and its technical scheme is: by waste water tank (31), washing water tank (35), mixing water tank (30), urinal (34) and supply , Drainage mechanical control mechanism, etc., its main feature is that when the waste water for flushing the toilet is insufficient, tap water can be automatically replenished through the drainage selection control mechanism.

The waste water reuse automatic device researched and designed by Ni Lingying (selected from "Energy Saving" in December 2001) is composed of bellows, Venturi tube, water storage tank, one-way valve, etc. It uses the negative pressure (suction) and Hydrostatic pressure is used as the power to automatically press domestic wastewater into the water storage tank to realize wastewater reuse. Both of the above two waste water utilization devices are mechanical waste water utilization control devices, the manufacturing process is relatively complicated, and the space occupied is large, which is not conducive to installation and use in small toilets.

After retrieval, the working mode of the content of this patent is different from the technical solutions of the above two documents.

Contents of the invention

The purpose of this utility model is to address the deficiencies of the prior art, and propose an automatic control device for flushing toilets with waste water, which is convenient for collecting waste water, takes up little space, and automatically switches between waste water or tap water flushing. The flushing water consumption of the device can be adjusted manually. The water supply of the toilet can be controlled automatically.

The utility model solves its technical problem and realizes by taking the following technical solutions:

An automatic control device for flushing toilets with waste water, consisting of a waste water collection system and a toilet flushing measurement and control system, wherein the waste water collection system consists of a waste water collection basin, a waste water injection pipe, a filter, two waste water storage tanks, and a waste water storage tank Composed of a Unicom pipe and a waste water overflow pipe, the outlet of the waste water injection pipe is located in the first waste water storage tank, a filter screen is provided at the position of the waste water storage tank where the water outlet is located, and an overflow filter is provided on the first waste water storage tank. The outlet of the overflow pipe leads to the sewer, the second waste water storage tank is placed next to the toilet, the two waste water storage tanks realize the connector structure through the waste water storage tank Unicom pipe, and the waste water storage tank maintains the same water level;

The toilet flushing measurement and control system includes submersible pump, waste water supply pipe, waste water control solenoid valve, waste water storage tank high water level detection probe, waste water storage tank low water level detection probe, toilet low water level detection probe, toilet high water level detection probe, electrical automatic Control box, running water pipe, toilet upper water pipe, tap water control solenoid valve, the upper water pipe of the toilet water storage tank is connected with a three-way water outlet, and the two water inlets of the three-way are respectively passed through the waste water control solenoid valve and the tap water control solenoid valve It is connected with the second waste water storage tank and the tap water pipe, and a submersible pump is arranged in the second waste water storage tank, and the submersible pump is connected to the toilet water storage tank through the waste water upper water pipe, and a waste water control solenoid valve is installed on the waste water upper water pipe, and the toilet The water storage tank is connected to the tap water pipe through the water pipe on the toilet. The tap water control solenoid valve is installed on the tap water pipe. Both the waste water control solenoid valve and the tap water control solenoid valve use one-way valves and are electrically interlocked to control and isolate waste water and water. tap water;

The electrical automatic control box is powered by an AC 220V power supply. The electrical automatic control box is connected to the waste water control solenoid valve and the tap water control solenoid valve through the control circuit. The toilet low water level detection probe and the toilet high water level detection probe are installed in the toilet water storage tank. The second wastewater storage tank is provided with a wastewater storage tank high water level detection probe and a wastewater storage tank low water level detection probe, a toilet low water level detection probe, a toilet high water level detection probe, a wastewater storage tank high water level detection probe and a wastewater storage tank The low water level detection probes are respectively connected with the electric automatic control box through the control circuit.

Moreover, the control circuit of the electrical automatic control box includes: the water level detection switch SS of the waste water storage tank; the high water level control relay KM1 of the waste water water storage tank; the low water level control relay KM2 of the waste water water storage tank; the toilet water level detection switch CS; Relay KM3; toilet low water level control relay KM4; tap water control solenoid valve RWV; waste water control solenoid valve SV; waste water lifting pump SP; manual flush switch AS; , where both pins a and b are connected to the phase line of the AC 220V power supply, pin c is connected to the neutral line of the AC 220V power supply, and pin d is connected to the low level of the waste water storage tank through the normally closed contact of the high water level control relay KM1 of the waste water storage tank The coil of the water level control relay KM2 is connected, and the e foot is connected with the coil of the waste water storage tank high water level control relay KM1 through the normally closed contact of the low water level control relay KM2 of the waste water storage tank to realize the electrical interlock of the relay KM1 and KM2, and the f foot is connected with a wire lead to the bottom of the waste water tank, the g foot is led to the lower part of the waste water tank with a wire as a low water level probe, the h foot is led to the upper part of the waste water tank as a high water level probe with a wire, the length of the lead wires of the g and h feet depends on the setting of the high and low water level of the waste water tank, The toilet water level detection switch CS has 8 pins in total, of which pins a and b are connected to the phase line of the AC 220V power supply, pin c is connected to the neutral line of the AC 220V power supply, and pin d is connected to the high water level control relay of the toilet The normally closed contact of KM3 is connected to the coil of the toilet low water level control relay KM4, and the e foot is connected to the coil of the toilet high water level control relay KM3 through the normally closed contact of the toilet low water level control relay KM4, so as to realize the electrical connection between the relay KM3 and KM4. Interlocking, the f foot is led to the bottom of the toilet water storage tank by a wire, the g foot is led to the lower part of the toilet water storage tank by a wire as a low water level probe, the h foot is led to the upper part of the toilet water storage tank by a wire as a high water level probe, g, h The length of the pin lead depends on the setting of the high and low water level of the toilet water storage tank. One end of the tap water control solenoid valve RWV coil is connected to the zero line of the AC 220V power supply, and the other end passes through the normally closed contact of the toilet high water level control relay KM3 and the waste water storage tank. The normally closed contact of the low water level control relay KM2 is connected in series with the branch of the manual flushing switch AS in parallel and then connected to the phase line of the AC 220V power supply. After the wastewater control solenoid valve SV is connected in parallel with the wastewater lifting pump SP, one end is connected to the neutral line of the AC 220V power supply The other end is connected in series with the normally open contact of the toilet low water level control relay KM4, the normally open contact of the waste water storage tank high water level control relay KM1, the normally closed contact of the toilet high water level control relay KM3, and the automatic flushing switch MS in series. Phase line of AC 220V power supply.

Moreover, the water level detection switch of the waste water storage tank and the water level detection switch of the toilet all adopt the JYB-714 type transistor liquid level relay, the high water level control relay of the waste water storage tank, the low water level control relay of the waste water storage tank, the high water level control relay of the toilet and The toilet low water level control relays all use JZC1-44 relays.

Moreover, a bypass cut-off gate is also included, and the bypass cut-off gate is installed on the water pipe.

Advantage and positive effect of the present utility model are:

1. The utility model is convenient for collecting waste water, and makes full use of the narrow space of residents’ family bathrooms. The waste water collection system adopts a series water tank structure, which can be used according to the size of the surrounding space of the facilities that produce waste water such as laundry, washing, bathing, and toilets that use waste water. 1. How much waste water is generated Reasonably design the structural size and shape of the waste water collection tank, and use the principle of connecting pipes to connect the water tanks distributed in different positions in series, so that each water tank maintains the same water level.

2. The electric control circuit in the utility model can realize the selection between waste water flushing or tap water flushing according to the water level detection result of the waste water tank. When there is water in the waste water tank, use waste water to flush the toilet, which can save pure water resources; when there is no water in the waste water tank, it will automatically switch to tap water for flushing, which can ensure that the toilet can be flushed at any time.

3. In the utility model, the original flushing operation mode of the toilet is kept unchanged. When the toilet is flushed, the electric control circuit can realize automatic water supply and stop water supply control according to the water level detection result of the toilet water storage tank. By adjusting the position of the high water level detection probe of the toilet water storage tank, the optimal value setting of the water consumption for flushing the toilet once can be realized, and water can be saved under the premise of ensuring the flushing effect.

4. The utility model has a manual flushing function. In the case of a power failure or the need to clean the toilet with tap water, the tap water bypass gate or the manual flush switch can be manually operated to flush the toilet with tap water.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the wiring diagram of the electrical automatic control circuit in the utility model.

Detailed ways

The implementation of the utility model will be described in further detail below in conjunction with the accompanying drawings. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the utility model.

An automatic control device for flushing toilets with waste water, consisting of a waste water collection system and a toilet flushing measurement and control system, wherein the waste water collection system consists of a waste water collection basin 1, a waste water injection pipe 2, a filter screen 3, and two waste water storage tanks 4 and 8, waste water storage tank Unicom pipe 6, waste water overflow water pipe 5 form.

Used waste water such as washing and bathing can be poured into the waste water collection basin, the water inlet of the waste water injection pipe is connected with the waste water collection basin, the water outlet of the waste water injection pipe is located in the first waste water storage tank, and the waste water storage tank where the water outlet is located The position of the water tank is provided with a filter screen, and an overflow pipe is arranged on the first waste water storage tank, and the outlet of the overflow pipe leads to the sewer. According to the size of the space around the toilet and the color of the bathroom decoration, the two waste water storage tanks realize the interconnector structure through the connection pipe of the waste water storage tanks. The two waste water storage tanks maintain the same water level and store the waste water for later use.

The filter screen is used to filter out fluff, hair and other impurities in the wastewater, so as not to block the wastewater pipeline. The filter screen can be made of window gauze made of nylon, polyethylene plastic, glass fiber, etc., so that the filtered sundries can be removed regularly . The overflow port of the waste water overflow pipe should be slightly lower than the height of the waste water storage tank, so as to prevent the waste water from overflowing from the waste water storage tank to around the toilet. When the water level of the waste water storage tank exceeds the overflow port, excess waste water can flow into the sewer or into other containers placed in advance for reuse.

The toilet flushing measurement and control system includes submersible pump 7, waste water supply pipe 9, waste water control solenoid valve 10, waste water storage tank high water level detection probe 20, waste water storage tank low water level detection probe 21, toilet low water level detection probe 13, toilet height Water level detection probe 14, electric automatic control box 15, tap water pipe 16, toilet upper water pipe 17, tap water control solenoid valve 18 and tap water bypass cut-off door 19, the upper water pipe of toilet water storage tank links to each other with a three-way outlet, The two water inlets of the tee are respectively connected to the second waste water storage tank and the tap water pipe through the waste water control solenoid valve and the tap water control solenoid valve. The toilet water storage tank 12 is equipped with a waste water control solenoid valve on the waste water upper water pipe. In order to ensure the flow and pressure of the waste water lifting, a submersible pump with a flow rate of 1000L/h, a head of 2m, and a power of 30W and above should be selected.

A toilet flushing pipe 11 is arranged at the bottom of the toilet water storage tank, and the toilet water storage tank is connected with the tap water pipe through the toilet upper water pipe. Solenoid valves are one-way valves and are electrically interlocked to control and isolate waste water and tap water.

The electrical automatic control box is powered by an AC 220V power supply. The electrical automatic control box is connected to the waste water control solenoid valve and the tap water control solenoid valve through the control circuit. The toilet low water level detection probe and the toilet high water level detection probe are installed in the toilet water storage tank. The second wastewater storage tank is provided with a wastewater storage tank high water level detection probe and a wastewater storage tank low water level detection probe, a toilet low water level detection probe, a toilet high water level detection probe, a wastewater storage tank high water level detection probe and a wastewater storage tank The low water level detection probes are respectively connected with the electric automatic control box through the hole control circuit.

The working principle of the utility model is:

When using waste water to flush, the waste water control solenoid valve is opened, while the tap water control solenoid valve is then closed, so as to prevent waste water from entering the tap water pipeline and polluting the clean water source. The high and low water level detection probes of the waste water storage tank are used to detect the water level of the waste water storage tank. When the waste water stored in the waste water storage tank is at a low water level, it cannot meet the water volume for flushing the toilet once, and the control circuit in the electrical automatic control box automatically switches To the tap water flushing function, the waste water control solenoid valve is closed, and the tap water control solenoid valve is opened;

The toilet high and low water level detection probes are used to detect the water level of the toilet water storage tank. When the toilet is flushed, the water storage tank of the toilet is at a low water level, and the low water level detection probe sends out a low water level signal, so that the electrical control circuit realizes water filling control. When the water level of the toilet water storage tank rises to the high water level, the high water level detection probe sends High water level signal, through the electrical control circuit to automatically stop water supply;

The tap water bypass cut-off gate is used during power failure. When the power supply is normal, the cut-off gate is in the closed state, and the tap water flushing is realized by controlling the solenoid valve 18; when the power is off, the tap water control solenoid valve is out of control and is in the closed state. By pulling the wrench of the bypass cut-off door, the tap water flushing pipeline is connected, and the toilet is flushed with tap water.

See Figure 2, the electrical automatic control box control circuit includes: SS: waste water storage tank water level detection switch; KM1: waste water storage tank high water level control relay; KM2: waste water storage tank low water level control relay; CS: toilet water level detection switch; KM3 : toilet high water level control relay; KM4: toilet low water level control relay; RWV: tap water control solenoid valve; SV: waste water control solenoid valve; SP: waste water lifting pump; AS: manual flush switch; MS: automatic flush switch.

Its control principle is:

The water level detection switch SS of the wastewater storage tank has 8 pins in total, of which pins a and b are connected to the phase line of the AC 220V power supply, pin c is connected to the neutral line of the AC 220V power supply, and pin d passes through the high water level of the wastewater storage tank The normally closed contact of the control relay KM1 is connected to the coil of the low water level control relay KM2 of the wastewater storage tank, and the e foot is connected to the coil of the high water level control relay KM1 of the wastewater storage tank through the normally closed contact of the wastewater storage tank low water level control relay KM1 to realize the relay KM1 and KM2 are electrically interlocked, the f foot is led to the bottom of the waste water tank by a wire, the g foot is led to the lower part of the waste water tank by a wire as a low water level probe, the h foot is led to the upper part of the waste water tank by a wire as a high water level probe, the g and h feet are used as a high water level probe The length of the lead wire depends on the setting of the high and low water level of the waste water tank. The toilet water level detection switch CS has 8 pins in total, of which pins a and b are connected to the phase line of the AC 220V power supply, pin c is connected to the neutral line of the AC 220V power supply, and pin d is connected to the high water level control relay of the toilet The normally closed contact of KM3 is connected to the coil of the toilet low water level control relay KM4, and the e foot is connected to the coil of the toilet high water level control relay KM3 through the normally closed contact of the toilet low water level control relay KM4, so as to realize the electrical connection between the relay KM3 and KM4. Interlocking, the f foot is led to the bottom of the toilet water storage tank by a wire, the g foot is led to the lower part of the toilet water storage tank by a wire as a low water level probe, the h foot is led to the upper part of the toilet water storage tank by a wire as a high water level probe, g, h The length of the foot lead depends on the setting of the high and low water levels of the water tank of the toilet. One end of the tap water control solenoid valve RWV coil

It is connected to the neutral line of the AC 220V power supply, and the other end is connected to the AC through the normally closed contact of the high water level control relay KM3 of the toilet and the normally closed contact of the low water level control relay KM2 of the waste water storage tank, which is connected in parallel with the manual flush switch AS The phase line of the 220V power supply. After the wastewater control solenoid valve SV is connected in parallel with the wastewater lifting pump SP, one end is connected to the zero line of the AC 220V power supply, and the other end is connected to the normally open contact of the toilet low water level control relay KM4 and the normally open contact of the wastewater storage tank high water level control relay KM1 1. The normally closed contact of the toilet high water level control relay KM3 and the automatic flushing switch MS are connected in series to the phase line of the AC 220V power supply.

When in use, use waste water to flush the toilet, adopt the following scheme:

When the toilet is flushed and its water level drops to the low water level of the toilet, the low water level detection probe of the toilet sends out a signal, the water level detection switch CS closes to L, and KM4 is energized and closed. At this time, if the waste water storage tank is at a high water level, its water level detection switch SS turns to H, the high water level control relay KM1 of the waste water storage tank pulls in, the waste water control solenoid valve SV and the waste water lifting pump SP are energized to work at the same time, and pump water to the toilet. Fill the tank with water. When the water level of the toilet rises to the high water level, the water level detection switch CS closes to H, the high water level control relay ZJ3 of the toilet closes, and its normally closed contact disconnects the waste water lifting pump SP and the waste water control solenoid valve SV, and stops turning to the seat. Water the toilet.

When in use, use tap water to flush the toilet, adopt the following scheme:

When the water level of the toilet is lowered to the low water level of the toilet after flushing, KM4 is energized and closed. If the waste water storage tank is at a low water level at this time, the low water level control relay KM2 of the waste water storage tank is closed, and the tap water control solenoid valve RWV is energized. , connect the tap water pipeline, and automatically fill the toilet with water; while the waste water storage tank high water level control relay KM1 loses power, and its normally open contact disconnects the waste water lifting pump SP and waste water control solenoid valve SV. When the toilet water level rises to the toilet high water level, the toilet high water level control relay KM3 pulls in, its normally closed contact disconnects the tap water control solenoid valve RWV, and stops water supply to the toilet. When the toilet needs to be cleaned manually with tap water, turn the automatic control switch to the "manual" position, the manual flush switch AS is closed, the automatic flush switch MS is disconnected (AS and MS are interlock switches), and the tap water control solenoid valve RWV is opened. Water is supplied to the toilet, while the waste water control solenoid valve SV is closed, and the waste water lifting pump SP does not work either. In the case of a power failure, the automatic control device stops working, and the tap water control solenoid valve RWV is out of control and is in a closed state. The tap water flushing pipeline can be connected by pulling the tap water bypass cut-off valve, and tap water can also be used to flush the toilet.

The water level detection switch of the waste water storage tank and the toilet adopts the JYB-714 transistor liquid level relay, and its terminal contains 8 wiring pins, including a, b, c, d, e, f, g, h respectively. b. Pin c is connected to 220V AC voltage, pin h is the high water level probe, pin g is the low water level probe, and pin f is the ground wire of the water storage tank, which is placed at the lowest point of the water storage tank to contact the bottom of the water tank, and pin a is connected to the 220V AC voltage Phase line, pin d is the low water level control contact, when the water level is low, the d and a pins are connected, the e pin is the high water level control contact, the a, e pin is connected when the water level is high, the four control relays for automatic control are Select JZC1-44 contact relay.

Claims (4)

1. An automatic control device for flushing toilets with waste water, characterized in that: it consists of a waste water collection system and a toilet flushing measurement and control system, wherein the waste water collection system consists of waste water collection basins, waste water injection pipes, filter screens, and two waste water The water storage tank, the waste water storage tank Unicom pipe, and the waste water overflow water pipe are composed. The water outlet of the waste water injection pipe is located in the first waste water water storage tank. An overflow pipe is arranged on the water tank, and the outlet of the overflow pipe leads to the sewer, and the second waste water storage tank is placed next to the toilet, and the two waste water storage tanks realize the connector structure through the waste water storage tank communication pipe, and the waste water storage tanks maintain the same water level; The toilet flushing measurement and control system includes submersible pump, waste water supply pipe, waste water control solenoid valve, waste water storage tank high water level detection probe, waste water storage tank low water level detection probe, toilet low water level detection probe, toilet high water level detection probe, electrical automatic Control box, running water pipe, toilet upper water pipe, tap water control solenoid valve, the upper water pipe of the toilet water storage tank is connected with a three-way water outlet, and the two water inlets of the three-way are respectively passed through the waste water control solenoid valve and the tap water control solenoid valve It is connected with the second waste water storage tank and the tap water pipe, and a submersible pump is arranged in the second waste water storage tank, and the submersible pump is connected to the toilet water storage tank through the waste water upper water pipe, and a waste water control solenoid valve is installed on the waste water upper water pipe, and the toilet The water storage tank is connected to the tap water pipe through the water pipe on the toilet. The tap water control solenoid valve is installed on the tap water pipe. Both the waste water control solenoid valve and the tap water control solenoid valve use one-way valves and are electrically interlocked to control and isolate waste water and water. tap water; The electrical automatic control box is powered by an AC 220V power supply. The electrical automatic control box is connected to the waste water control solenoid valve and the tap water control solenoid valve through the control circuit. The toilet low water level detection probe and the toilet high water level detection probe are installed in the toilet water storage tank. The second wastewater storage tank is provided with a wastewater storage tank high water level detection probe and a wastewater storage tank low water level detection probe, a toilet low water level detection probe, a toilet high water level detection probe, a wastewater storage tank high water level detection probe and a wastewater storage tank The low water level detection probes are respectively connected with the electric automatic control box through the control circuit. 2. The automatic control device for flushing the toilet with waste water according to claim 1, characterized in that: the electric automatic control box control circuit includes: Waste water storage tank water level detection switch SS; waste water storage tank high water level control relay KM1; waste water storage tank low water level control relay KM2; toilet water level detection switch CS; toilet high water level control relay KM3; toilet low water level control relay KM4; tap water Control solenoid valve RWV; waste water control solenoid valve SV; waste water lifting pump SP; manual flush switch AS; The phase line of the AC 220V power supply, the c pin is connected to the neutral line of the AC 220V power supply, the d pin is connected to the coil of the waste water storage tank low water level control relay KM2 through the normally closed contact of the waste water storage tank high water level control relay KM1, and the e pin is connected to the waste water tank through the waste water The normally closed contact of the low water level control relay KM2 of the water storage tank is connected with the coil of the high water level control relay KM1 of the waste water storage tank to realize the electrical interlock of the relay KM1 and KM2. To the lower part of the waste water tank as a low water level probe, the h pin is led to the upper part of the waste water tank as a high water level probe, the length of the g and h pin lead wires depends on the setting of the high and low water level of the waste water tank, and the toilet water level detection switch CS has 8 pins in total , where both pins a and b are connected to the phase line of the AC 220V power supply, pin c is connected to the neutral line of the AC 220V power supply, and pin d is connected to the low water level control of the toilet through the normally closed contact of the toilet high water level control relay KM3 The coil of the relay KM4 is connected, the e foot is connected with the coil of the toilet high water level control relay KM3 through the normally closed contact of the toilet low water level control relay KM4, and the electrical interlock of the relay KM3 and KM4 is realized, and the f foot is led to the toilet with a wire At the bottom of the water storage tank, the g pin is led to the lower part of the toilet water storage tank by a wire as a low water level probe, and the h pin is led to the upper part of the toilet water storage tank by a wire as a high water level probe. Depending on the setting, one end of the RWV coil of the tap water control solenoid valve is connected to the zero line of the AC 220V power supply, and the other end is connected to the manual contact through the normally closed contact of the toilet high water level control relay KM3 and the waste water storage tank low water level control relay KM2. The parallel branch of the flushing switch AS is connected in series to the phase line of the AC 220V power supply. After the wastewater control solenoid valve SV is connected in parallel with the wastewater lifting pump SP, one end is connected to the neutral line of the AC 220V power supply, and the other end is connected to the toilet low water level control relay. The normally open contact of KM4, the normally open contact of the high water level control relay KM1 of the waste water storage tank, the normally closed contact of the toilet high water level control relay KM3, and the automatic flushing switch MS are connected in series to the phase line of the AC 220V power supply. 3. The automatic control device for flushing the toilet with waste water according to claim 2, characterized in that: the water level detection switch of the waste water storage tank and the water level detection switch of the toilet are both JYB-714 transistor liquid level relays, and the waste water storage The high water level control relay of the water tank, the low water level control relay of the waste water storage tank, the high water level control relay of the toilet and the low water level control relay of the toilet all use the JZC1-44 relay. 4. The automatic control device for flushing the toilet with waste water according to claim 1, further comprising a bypass cut-off gate installed on the water pipe.