CN214940704U - Hand washing device with sewage recycling function - Google Patents

Abstract

The utility model provides a hand washing device with sewage recycling function, which comprises a hollow box body, a hand washing pool arranged on the box body and a water tap arranged beside the hand washing pool; the inside of the box body is also provided with a water purifying tank communicated with a water inlet of the faucet, a pressurizing device for pressurizing water in the water purifying tank and then conveying the water to the faucet, and a sewage treatment device communicated with a drain outlet at the bottom of the hand washing pool, wherein a water outlet of the sewage treatment device is communicated with the water purifying tank through a water return pipe, and water discharged by the sewage treatment device is conveyed into the water purifying tank by virtue of dead weight or a pump. The utility model discloses a device of washing hand, sewage after people washed hand get into sewage treatment plant through the drain of washing hand bottom of the pool portion, purify the back by sewage treatment plant in, carry to the water purification case via the wet return, realize sewage cyclic utilization to the water economy resource.

Description

Hand washing device with sewage recycling function

Technical Field

The utility model belongs to the equipment field of washing hand, concretely relates to device of washing hand with sewage cyclic utilization.

Background

Hands are often contacted with various places and easily contacted with bacteria and viruses (hereinafter referred to as germs), and the method for treating the problem is generally washing hands. In a hand washing mode in a public place, a tap water faucet with infrared induction is usually arranged beside a hand washing sink, when hands are washed, hands of people approach an inductor, the tap water faucet automatically discharges water after induction, and the tap water faucet automatically closes after a certain time. The sewage after hand washing is directly discharged from a sewage outlet at the bottom of the hand washing pool, so that water resources are wasted, and untreated water is directly discharged to pollute the environment.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the technical problem existing in the prior art, and the purpose of the utility model is to provide a hand washing device with sewage recycling.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a hand washing device with sewage recycling function comprises a hollow box body, a hand washing pool arranged on the box body and a water faucet arranged beside the hand washing pool; the inside of the box body is also provided with a water purifying tank communicated with a water inlet of the faucet, a pressurizing device for pressurizing water in the water purifying tank and then conveying the water to the faucet, and a sewage treatment device communicated with a drain outlet at the bottom of the hand washing pool, wherein a water outlet of the sewage treatment device is communicated with the water purifying tank through a water return pipe, and water discharged by the sewage treatment device is conveyed into the water purifying tank by virtue of dead weight or a pump.

According to the technical scheme, sewage after hand washing enters the sewage treatment device through the sewage outlet at the bottom of the hand washing pool, is purified in the sewage treatment device and then is conveyed into the water purification box through the water return pipe, so that sewage recycling is realized, and water resources are saved.

In a preferred embodiment of the utility model, a sewage tank is arranged between the sewage treatment device and the hand washing pool, the inlet of the sewage tank is communicated with the drain outlet at the bottom of the hand washing pool, and the outlet of the sewage tank is connected with the sewage inlet of the sewage treatment device; the water in the sewage tank is conveyed to the sewage treatment device by the dead weight or the pump, and the water discharged by the sewage treatment device is conveyed to the water purification tank by the dead weight or the pump.

According to the technical scheme, sewage discharged from the hand washing sink is temporarily stored in the sewage tank, so that the problem that the sewage cannot be discharged from the hand washing sink due to the fact that the sewage treatment device cannot treat the sewage in time can be avoided.

In a preferred embodiment of the present invention, the pressurizing device is a water pump, a water inlet of the water pump is communicated with the purified water tank, and a water outlet of the water pump is communicated with a water inlet of the faucet through a water supply pipe.

The utility model discloses an in the preferred embodiment, pressure device is the air pump, and the air inlet of air pump communicates with each other with external atmosphere, and the gas outlet of air pump and the air inlet at water purification case top communicate, and tap's water inlet passes through delivery pipe and water purification case intercommunication and the delivery pipe inserts the aquatic of water purification case, is equipped with the wet return valve on the wet return, and water purification case top still is equipped with the breather valve.

Among the above-mentioned technical scheme, pump into the air in to the water purification case through the air pump, make the atmospheric pressure of water purification case increase in order to send the water pressure in the water purification case to tap. Compare the tradition and supply water with the water pump, the water pump is blockked up often and the maintenance, the problem of avoiding blockking up that this scheme can be fine.

In a preferred embodiment of the present invention, the sewage treatment device comprises a backwashing water purifier, a stop valve is provided at a sewage inlet of the sewage treatment device, and a water supply valve is provided on a water supply pipe; under the action of the pressurizing device, water in the water purifying tank can be discharged into the backwashing water purifier through the water return pipe to backwash the backwashing water purifier.

According to the technical scheme, the flow direction of the discharged water in the water purifying tank is switched by controlling the opening or closing of each valve, air is pumped into the water purifying tank through the air pump, the air pressure of the water purifying tank is increased to send the water pressure in the water purifying tank to the water return pipe, the backwashing water purifier of the sewage treatment device is backwashed by using the water in the water purifying tank, and the service life of the sewage treatment device is prolonged.

The utility model discloses an in another kind of preferred embodiment, sewage treatment plant's drain has the dirty box of storage that is located clean sewage treatment plant below through the blow off pipe intercommunication, is equipped with the blowoff valve on the blow off pipe. The arrangement of the sewage storage box is convenient for a cleaner to intensively clean sewage discharged by backwashing.

In another preferred embodiment of the present invention, the water heater further comprises a heating module for making the water discharged from the faucet hot. The hot water is adopted to wash hands, so that the experience of a hand washer is improved.

The utility model discloses an in another kind of preferred embodiment, sewage treatment plant includes the shell of vertical setting and establishes the filter core in the shell, and filter core cavity sets up, and the accommodation space between shell and the filter core is the sewage chamber, and the inside accommodation space of filter core is the water purification chamber.

In another preferred embodiment of the present invention, the water purifying tank is further provided with a water replenishing pipe communicated with an external water source, and the water replenishing pipe is provided with a water replenishing valve.

Among the above-mentioned technical scheme, through opening the moisturizing valve to moisturizing in the water purification case, compare and carry out the moisturizing with water guide-in hand sink, it is more convenient to operate.

The utility model discloses an in another kind of preferred embodiment, be equipped with low level gauge and high level gauge in the water purification case, the signal output part of low level gauge is connected with the opening end electricity of moisturizing valve, and the signal output part of high level gauge is connected with the closing end electricity of moisturizing valve.

Among the above-mentioned technical scheme, after setting up low level gauge and high level gauge, can realize automatic water supply, degree of automation is higher, and it is more convenient to use.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an internal structure of a hand washing device with sewage recycling function according to an embodiment of the present application.

Fig. 2 is a schematic view of the internal structure of a hand washing device with sewage recycling function in the second embodiment of the present application.

Reference numerals in the drawings of the specification include: the device comprises a box body 10, a hand washing basin 20, a faucet 21, a water purification tank 30, a water supply pipe 31, a water supply valve 32, a water supply pipe 33, a water supply valve 34, a ventilation valve 35, an air water production module 36, a sewage tank 40, a sewage treatment device 50, a shell 51, a filter element 52, a stop valve 61, a water return pipe 62, a water return valve 63, a sewage storage box 70, a sewage discharge pipe 71, a sewage discharge valve 72, a low level liquid level meter 81, a high level liquid level meter 82 and a pressurizing device 90.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or may be connected between two elements through an intermediate medium, or may be directly connected or indirectly connected, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

Example one

The embodiment provides a hand washing device with sewage recycling function, as shown in fig. 1, in a preferred embodiment, the hand washing device comprises a hollow box body 10, a hand washing basin 20 arranged on the box body 10 and a water faucet 21 arranged beside the hand washing basin 20, and water discharged from the water faucet 21 can flow into the hand washing basin 20 for washing hands. The interior of the box body 10 is further provided with a purified water tank 30 communicated with a water inlet of the water tap 21, a pressurizing device 90 for pressurizing water in the purified water tank 30 and then conveying the water to the water tap 21, a sewage tank 40 communicated with a sewage discharge outlet at the bottom of the hand washing pool 20, and a sewage treatment device 50 for purifying sewage after hand washing and connected with an outlet of the sewage tank 40, wherein a water outlet of the sewage treatment device 50 is communicated with the purified water tank 30 through a water return pipe 62. The water in the foul water tank 40 is transferred to the foul water treatment apparatus 50 by its own weight or pump, and the water discharged from the foul water treatment apparatus 50 is transferred to the clean water tank 30 by its own weight or pump.

As shown in fig. 1, the sewage treatment apparatus 50 is disposed below the foul water tank 40, a clean water outlet of the sewage treatment apparatus 50 is higher than a maximum liquid level of the clean water tank 30, and water in the foul water tank 40 is transferred into the sewage treatment apparatus 50 by its own weight, purified by the sewage treatment apparatus 50, and transferred into the clean water tank 30 by its own weight.

By adopting the technical scheme, when people need to wash hands, the switch of the water tap 21 is turned on, the pressurizing device 90 works, the pressurizing device 90 pumps water in the water purifying tank 30 into the water tap 21 and discharges the water from the water tap 21 into the hand washing pool 20 for people to wash hands, sewage after people wash hands enters the sewage tank 40 through the sewage discharge outlet at the bottom of the hand washing pool 20 for temporary storage, water in the sewage tank 40 enters the sewage treatment device 50, dirt (such as soap solution, bacteria, particles and the like) in the sewage is removed by the sewage treatment device 50 and then is conveyed into the water purifying tank 30 through the water return pipe 62, so that the sewage is recycled, and water resources are saved.

In the present embodiment, the sewage treatment apparatus 50 may have a structure of a pipe-type water purifier with a pre-filter disclosed in 202010197052.8 or a filtering mechanism disclosed in 201920277013.1.

In this embodiment, the pressurizing device 90 is a water pump or an air pump, and when the pressurizing device 90 is a water pump, the water inlet of the water pump is communicated with the purified water tank 30, the water outlet of the water pump is communicated with the water inlet of the water faucet 21 through the water supply pipe 31, and the water in the purified water tank 30 is pressurized by the water pump and then pumped to the water faucet 21.

As shown in fig. 1, when the pressurizing means 90 is an air pump, an air inlet of the air pump is communicated with the outside atmosphere, an air outlet of the air pump is communicated with an air inlet at the top of the purified water tank 30 through an air pipe, an inlet of the water tap 21 is communicated with the purified water tank 30 through a water supply pipe 31, and the water supply pipe 31 is inserted into the water in the purified water tank 30. The water return pipe 62 is provided with a water return valve 63, the water return valve 63 is a normally open valve, the top of the purified water tank 30 is also provided with a ventilation valve 35, and the ventilation valve 35 is also a normally open valve.

When people need to wash hands, the switch of the water faucet 21 is turned on, the water return valve 63 and the ventilation valve 35 are closed, the air pump works at the same time, the air pump pumps outside air into the water purification tank 30, the air pressure in the water purification tank 30 is increased, water in the water purification tank 30 is sent to the water faucet 21 and is discharged into the hand washing basin 20 from the water outlet of the water faucet 21 for people to wash hands, after the hand washing is finished, the switch of the water faucet 21 is turned off, the water return valve 63 and the ventilation valve 35 are reset to be opened, and the air pump stops rotating. Specifically, the signal output end of the switch of the water faucet 21 (in some embodiments, the signal can be amplified by a signal amplifier) can be respectively connected with the start-stop end of the air pump, the enable end of the water return valve 63 and the enable end of the vent valve 35, when the switch of the water faucet 21 is turned on, the water return valve 63 and the vent valve 35 are turned off, and the air pump works; when the switch of the faucet 21 is turned off, the return valve 63 and the ventilation valve 35 are reset to be opened, and the air pump stops rotating. The switch of the faucet 21 can be a manual switch button or an infrared sensor, and is selected according to the actual situation.

It should be noted that, in a normal state, the water return valve 63 and the vent valve 35 are in an open state, the top of the clean water tank 30 is communicated with the outside atmosphere through the vent valve 35, and the water purified by the sewage treatment apparatus 50 can flow into the clean water tank 30 by its own weight.

In another preferred embodiment, when the pressurizing device 90 is an air pump, the sewage treatment device 50 includes a backwashing water purifier, a stop valve 61 is provided at a sewage inlet of the sewage treatment device 50, the stop valve 61 is a normally open valve, a water supply valve 32 is provided on the water supply pipe 31, and the water supply valve 32 is also a normally open valve. Under the action of the pressurizing device 90, the water in the clean water tank 30 can be discharged into the backwashing water purifier through the water return pipe 62, and the backwashing water purifier is backwashed.

In this embodiment, the sewage treatment device 50 includes a vertically disposed housing 51 and a filter element 52 disposed in the housing 51, the filter element 52 is disposed in a hollow manner, an accommodating space between the housing 51 and the filter element 52 is a sewage chamber, and an accommodating space inside the filter element 52 is a purified water chamber. Of course, the sewage treatment apparatus 50 may be a backwashing water purifier disclosed in CN201510427964.9, CN202011323320.2 or CN200810070099.7, and has a sewage inlet, a purified water outlet and a sewage outlet.

After a period of time (for example, ten days, half a month, one month or more, depending on the actual situation), the filter element 52 of the sewage treatment device 50 is clogged to some extent, at this time, the water supply valve 32, the vent valve 35 and the stop valve 61 are closed, the drain valve 72 is opened, the return valve 63 is kept open, then the air pump is started, the air pump pumps the outside air into the purified water tank 30, the air pressure in the purified water tank 30 is increased to send the water pressure in the purified water tank 30 to the water return pipe 62, the water is conveyed from the purified water outlet of the sewage treatment device 50 through the water return pipe 62 to the sewage treatment device 50, the filter element 52 of the sewage treatment device 50 is backwashed, and the backwashed sewage can be directly discharged to the external sewage discharge pipe.

After washing hands and back washing for many times, the water in the water purification tank 30 is reduced, clean water can be filled into the hand washing basin 20, and the water enters the water purification tank 30 after passing through the sewage tank 40 and the sewage treatment device 50. It should be noted that, in order to prevent water from overflowing from the wash basin 20 caused by pouring water into the wash basin 20, an overflow port may be provided on the clean water tank 30, and the overflow port is connected with an external sewage drainage pipe through a pipe.

Specifically, a timer may be used to control the backwashing, for example, a timing output end of the first timer is electrically connected to a start end of the air pump, a close end of the water supply valve 32, a close end of the vent valve 35, a close end of the stop valve 61, an open end of the drain valve 72, and an enable end of the second timer, and a timing output end of the second timer is electrically connected to a stop end of the air pump, an open end of the water supply valve 32, an open end of the vent valve 35, an open end of the stop valve 61, and a close end of the drain valve 72. For example, when the first timer counts time (for example, ten days, half month, one month or more), a high level is output, the second timer starts to count time, the air pump starts, the water supply valve 32, the vent valve 35 and the stop valve 61 are closed, the drain valve 72 is opened, the filter element 52 of the sewage treatment device 50 is backwashed, the second timer counts time (for example, 10s, 20s or 30s), the backwashing is finished, the air pump stops, the water supply valve 32, the vent valve 35 and the stop valve 61 are normally opened, and the drain valve 72 is normally closed.

In another embodiment, the sewage outlet of the sewage treatment device 50 is communicated with a sewage storage box 70 positioned below the sewage treatment device 50 through a sewage pipe 71, a sewage valve 72 is arranged on the sewage pipe 71, the sewage valve 72 is a normally closed valve, and preferably, the sewage storage box 70 is in a drawer type box structure which is slidably connected with the box body 10. Therefore, when a sewage discharge pipeline is not arranged outside or the distance between the sewage discharge pipelines is too far, sewage after back flushing can be discharged from the sewage discharge outlet of the sewage treatment device 50 to the sewage storage box 70 for temporary storage, and a cleaner can clean the sewage storage box 70 regularly.

In another preferred embodiment, the purified water tank 30 is further provided with a water replenishing pipe 33 communicated with an external water source, the water replenishing pipe 33 is provided with a water replenishing valve 34, and the water replenishing valve 34 is a normally closed valve and is opened only when water replenishing is needed and normally closed. In a place having municipal water supply, the outside water source is municipal water supply, and the water replenishing pipe 33 is connected to a water pipe for municipal water supply to replenish the purified water tank 30 with water through the municipal water supply.

In another preferred embodiment, a low level gauge 81 and a high level gauge 82 are provided in the clean water tank 30, the low level gauge 81 is located below the high level gauge 82, the high level gauge 82 is located below the overflow port, a signal output terminal of the low level gauge 81 is electrically connected to an open end of the water replenishing valve 34, and a signal output terminal of the high level gauge 82 is electrically connected to a close end of the water replenishing valve 34. When the water level in the pure water tank 30 drops to the liquid level of the low level liquid level meter 81, the water replenishing valve 34 is opened, water is replenished into the pure water tank 30 until the liquid level rises to the liquid level of the high level liquid level meter 82, and the water replenishing valve 34 is closed. The control of the opening or closing of the water replenishing valve 34 according to the liquid level is the prior art, such as the control system disclosed in CN201710208249.5 for controlling the start and stop of the submersible pump according to the liquid level, and is not described herein.

In another preferred embodiment, the hand washing apparatus further includes a heating module for heating the water discharged from the faucet 21 to hot water. The specific heating mode can adopt the prior art, for example, the water tap 21 of the hand washing device is an electric heating water tap, preferably a constant-temperature electric heating water tap; for example, a heater is provided on the water supply pipe 31, and preferably, the heater is a constant temperature heater; for example, a heater is provided in the clean water tank 30 to heat the water in the clean water tank 30, and an insulating layer is provided outside the clean water tank 30.

In another preferred embodiment, the hand washing device further comprises an advertising screen (not shown) disposed on the side of the housing 10, which may be an LED light box or a display screen.

Example two

The structure and principle of the embodiment are basically the same as those of the first embodiment, except that the water replenishing mode to the purified water tank 30 is different, as shown in fig. 2, in a preferred embodiment, an air water producing module 36 capable of producing water by using water vapor in the outside atmosphere is arranged in the tank body 10, the air water producing module 36 is a condenser or an air dehumidifier, the water outlet of the air water producing module 36 is communicated with the purified water tank 30 through a water replenishing pipe 33 or the water outlet of the air water producing module 36 is communicated with the water inlet of the sewage treatment device 50, a water replenishing valve 34 is arranged on the water replenishing pipe 33, and the water replenishing valve 34 is a normally closed valve. In fig. 2, the air water production module 36 is connected to the clean water tank 30, water is directly supplied into the clean water tank 30 from the air water production module 36, the water outlet of the air water production module 36 is higher than the highest liquid level of the clean water tank 30, and water in the air water production module 36 can be drained into the clean water tank 30 by its own weight.

By adopting the technical scheme, in some suburbs without municipal water supply, the air water making module 36 makes water to the water purifying tank 30 to supplement water, specifically, when the water level in the water purifying tank 30 is lowered to the liquid level of the low level liquid level meter 81, the air water making module 36 works to analyze the water in the outside air to make water, the water is supplemented to the water purifying tank 30 until the liquid level is raised to the liquid level of the high level liquid level meter 82, and the air water making module 36 stops working.

In this embodiment, the hand washing apparatus is supplied with municipal and/or solar power, as the case may be, for example in certain locations where there is no municipal or where solar energy is sufficient. When solar power is used, the hand washing device includes a solar panel and a distribution box (not shown), the solar panel can be fixedly connected to the upper rear side of the box 10 through a bracket, and the distribution box can be installed inside the box 10. The block terminal embeds there is battery and control circuit, and solar cell panel charges to the battery through electric connection's control circuit (specific control circuit can adopt current structure), and the output electric connection of battery is in the power supply terminal of block terminal, and the power supply terminal of block terminal is connected with pressure device 90, air system water module 36, advertising screen and the power end electricity of various solenoid valve and sensor, for it supplies power.

In the description herein, reference to the description of the terms "preferred embodiment," "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A hand washing device with sewage recycling function comprises a hollow box body, a hand washing pool arranged on the box body and a water faucet arranged beside the hand washing pool; the hand washing basin is characterized in that a water purification tank communicated with a water inlet of a faucet, a pressurizing device for pressurizing water in the water purification tank and conveying the water to the faucet, and a sewage treatment device communicated with a sewage outlet at the bottom of the hand washing basin are further arranged in the tank body, a water outlet of the sewage treatment device is communicated with the water purification tank through a water return pipe, and water discharged by the sewage treatment device is conveyed into the water purification tank by virtue of self weight or a pump.

2. The hand washing device with sewage recycling function of claim 1, wherein a sewage tank is further arranged between the sewage treatment device and the hand washing pool, an inlet of the sewage tank is communicated with a sewage outlet at the bottom of the hand washing pool, and an outlet of the sewage tank is connected with a sewage inlet of the sewage treatment device;

and water in the sewage tank is conveyed to the sewage treatment device by virtue of the dead weight or the pump, and water discharged by the sewage treatment device is conveyed to the water purification tank by virtue of the dead weight or the pump.

3. The hand washing device with sewage recycling function of claim 1, wherein the pressurizing device is a water pump, a water inlet of the water pump is communicated with the purified water tank, and a water outlet of the water pump is communicated with a water inlet of the water faucet through a water supply pipe.

4. The hand washing device with sewage recycling function of claim 1, wherein the pressurizing device is an air pump, an air inlet of the air pump is communicated with the outside atmosphere, an air outlet of the air pump is communicated with an air inlet at the top of the water purification tank, an water inlet of the water faucet is communicated with the water purification tank through a water supply pipe, the water supply pipe is inserted into water in the water purification tank, a water return valve is arranged on the water return pipe, and a ventilation valve is further arranged at the top of the water purification tank.

5. The hand washing device with sewage recycling function of claim 4, wherein the sewage treatment device comprises a backwashing water purifier, a stop valve is arranged at a sewage inlet of the sewage treatment device, and a water supply valve is arranged on the water supply pipe; under the action of the pressurizing device, water in the water purifying tank can be discharged into the backwashing water purifier through the water return pipe to backwash the backwashing water purifier.

6. The hand washing device with sewage recycling function of claim 5, wherein a sewage outlet of the sewage treatment device is communicated with a sewage storage box below the clean sewage treatment device through a sewage pipe, and a sewage valve is arranged on the sewage pipe.

7. The hand washing device with sewage recycling function of claim 1, further comprising a heating module for making the water discharged from the faucet hot.

8. The hand washing device with sewage recycling function of any one of claims 1 to 7, wherein the sewage treatment device comprises a vertically arranged shell and a filter element arranged in the shell, the filter element is arranged in a hollow manner, the accommodating space between the shell and the filter element is a sewage cavity, and the accommodating space inside the filter element is a water purifying cavity.

9. The hand washing device with sewage recycling function of any one of claims 1-7, wherein the water purifying tank is further provided with a water replenishing pipe communicated with an external water source, and the water replenishing pipe is provided with a water replenishing valve.

10. The hand washing device with sewage recycling function of claim 9, wherein a low level liquid level meter and a high level liquid level meter are arranged in the water purifying tank, a signal output end of the low level liquid level meter is electrically connected with an opening end of the water replenishing valve, and a signal output end of the high level liquid level meter is electrically connected with a closing end of the water replenishing valve.

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