CN220370616U

CN220370616U - Water purifying device

Info

Publication number: CN220370616U
Application number: CN202321871372.2U
Authority: CN
Inventors: 宾倩韵; 孙天厚
Original assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Current assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-01-23
Anticipated expiration: 2033-07-14

Abstract

The utility model discloses a water purifying device, which comprises a water purifying module and a water storing module, wherein the water purifying module comprises a water inlet main path, a first filter element, a water draining main path and a first control valve, the first filter element is arranged on the water inlet main path and is provided with a first water outlet and a second water outlet, the first water outlet is communicated with the main water outlet, and the second water outlet is communicated with the water draining main path; the water storage module comprises a water storage pipeline, a water drainage branch, a water tank, a first water level sensor and a second control valve, wherein the water storage pipeline is communicated with a first water outlet and the water tank and is provided with the second control valve, the first water level sensor is arranged on the water tank and is electrically connected with the second control valve, the second control valve and/or the first water level sensor can at least control the first control valve to be opened, the first end of the water drainage branch is communicated with the water storage pipeline and is arranged on the upstream of the second control valve, the second end of the water drainage branch is communicated with a water drainage main pipeline, and the water drainage branch is provided with the first control valve. The technical scheme of the utility model can solve the problem of pollution of the first cup of pure water with poor water quality to the water tank.

Description

Water purifying device

Technical Field

The utility model relates to the technical field of water purifying equipment, in particular to a water purifying device.

Background

At present, a user can combine the reverse osmosis water purifier and the pipeline machine together for use, namely, the pipeline machine is directly connected with the reverse osmosis water purifier, pure water produced by the reverse osmosis water purifier can be temporarily stored in a pure water tank of the pipeline machine, and when the user uses the pipeline machine to take water, the pipeline machine can heat or refrigerate water in the pure water tank so as to provide drinking water with different temperatures for the user.

However, when the reverse osmosis water purifier is started again after a period of time of stopping, the phenomenon of 'first cup water' exists, namely the TDS value of the first cup water received after stopping is higher, and the first cup water is not suitable for direct drinking, so that a user is recommended to drain the first cup water. Because the problem of "first cup water" that reverse osmosis purifier exists, when the pure water tank of pipeline machine lacks water and starts automatic moisturizing, the first cup water of reverse osmosis purifier can directly get into the pure water tank of pipeline machine, leads to the water in the pure water tank to be polluted, probably causes the user to obtain the problem of the pure water that does not accord with the direct drinking standard.

Disclosure of Invention

The utility model mainly aims to provide a water purifying device, which aims to solve the problem that a water tank is polluted by first cup of pure water with poor water quality.

In order to achieve the above object, the present utility model provides a water purifying apparatus comprising:

the water purification module comprises a water inlet main path, a first filter element and a water drainage main path, wherein the water inlet main path is provided with a main water inlet and a main water outlet which are communicated, the main water inlet is communicated with a water source, the first filter element is arranged in the water inlet main path and is provided with a first water outlet and a second water outlet, the first water outlet is communicated with the main water outlet, and the second water outlet is communicated with the water drainage main path; and

the water storage module comprises a water storage pipeline, a water drainage branch, a water tank, a first water level sensor, a first control valve and a second control valve, wherein the water storage pipeline is communicated with the first water outlet and the water tank and is provided with the second control valve, the first water level sensor is arranged on the water tank and is electrically connected with the second control valve, the second control valve and/or the first water level sensor can at least control the first control valve to be opened, the first end of the water drainage branch is communicated with the water storage pipeline and is arranged on the upstream of the second control valve, the second end of the water storage branch is communicated with the water drainage main, and the water drainage branch is provided with the first control valve.

Optionally, the water storage pipeline comprises a first pipeline and a second pipeline which are arranged in a split mode, and the drainage branch is communicated with the first pipeline;

optionally, the second control valve is arranged on the second pipeline, the water purifying module, the first pipeline, the drainage branch and the first control valve are assembled into a whole to form the water purifier, and the second pipeline, the second control valve, the first water level sensor and the water tank are assembled into a whole to form the pipeline machine;

optionally, the second control valve is disposed on the first pipeline, the water purifying module, the first pipeline, the drainage branch, the first control valve and the second control valve are assembled into a whole to form the water purifier, and the second pipeline, the first water level sensor and the water tank are assembled into a whole to form the pipeline machine.

Optionally, the water purifier further includes a first one-way valve disposed in the drainage branch, where the first one-way valve is capable of restricting water flowing from the second end of the drainage branch to the first end of the drainage branch;

optionally, the water purifier further comprises a waste water valve arranged in the drainage main path, and the second end of the drainage branch path is arranged at the downstream of the waste water valve.

Optionally, the water purifier further comprises a high-voltage switch arranged on the first pipeline, and the high-voltage switch is electrically connected with the first control valve.

Optionally, the water purifier further comprises a second filter element, wherein a first end of the second filter element is communicated with the first water outlet, and a second end of the second filter element is communicated with the first pipeline and the main water outlet.

Optionally, the water purifier further comprises a second one-way valve arranged on the first pipeline, and the second one-way valve can limit water to flow from the high-voltage switch to the second filter element.

Optionally, the second one-way valve communicates the second filter element with the high-pressure switch.

Optionally, when the second control valve is arranged on the first pipeline, the water purifier and the pipeline machine are arranged in a split mode, and the first water level sensor is in wireless communication connection with the second control valve.

Optionally, the first filter element comprises a reverse osmosis membrane and/or a nanofiltration membrane.

Optionally, the water purifying device further comprises a water tap arranged at the main water outlet and a third control valve communicated with the water tap and the first water outlet, and a control switch of the water tap is electrically connected with the third control valve.

According to the technical scheme, the first water level sensor, the first control valve and the second control valve are matched with each other, so that pure water flowing out from the first water outlet is at least partially discharged, and then the pure water flowing out is introduced into the water tank, automatic water supplementing operation of the water tank is realized, and the problem of pollution of the first cup of pure water with poor water quality to the water tank is solved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a water purifying apparatus according to an embodiment of the present utility model;

fig. 2 is a schematic structural view of another embodiment of the water purifying device of the present utility model.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				10	Water purifier	172	Second one-way valve
11	Main water inlet path	173	Waste water valve
				111	Main water inlet	174	Third control valve
112	Main water outlet	18	Second filter element
				12	First filter element	20	Pipeline machine
121	First water outlet	21	Water tank
				122	Second water outlet	22	First water level sensor
13	Main drainage path	23	Second water level sensor
				14	Drainage branch	24	Second control valve
15	First control valve	30	Water storage pipeline
				16	High-voltage switch	31	First pipeline
171	First one-way valve	32	Second pipeline

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

In view of this, the present utility model provides a water purifying apparatus, referring to fig. 1, in an embodiment of the present utility model, the water purifying apparatus includes:

the water purification module comprises a water inlet main channel 11, a first filter element 12 and a water drainage main channel 13, wherein the water inlet main channel 11 is provided with a main water inlet 111 and a main water outlet 112 which are communicated with each other, the main water inlet 111 is communicated with a water source, the first filter element 12 is arranged in the water inlet main channel 11 and is provided with a first water outlet 121 and a second water outlet 122, the first water outlet 121 is communicated with the main water outlet 112, and the second water outlet 122 is communicated with the water drainage main channel 13; and

the water storage module comprises a water storage pipeline 30, a drainage branch 14, a water tank 21, a first water level sensor 22, a first control valve 15 and a second control valve 24, wherein the water storage pipeline 30 is communicated with a first water outlet 121 and the water tank 21, the second control valve 24 is arranged, the water tank 21 can supply water to the outside, the first water level sensor 22 is arranged on the water tank 21 and is electrically connected with the second control valve 24, the second control valve 24 and/or the first water level sensor 22 can at least control the first control valve 15 to be opened, a first end of the drainage branch 14 is communicated with the water storage pipeline 30 and is arranged on the upstream of the second control valve 24, a second end of the drainage branch 14 is communicated with the drainage main pipeline 13, and the drainage branch 14 is provided with the first control valve 15.

Specifically, when the first water level sensor 22 detects that the water level in the water tank 21 drops to a low water level, the second control valve 24 controls the first control valve 15 to be opened to enable the drain branch 14 to be turned on, and then the water purification module starts to produce water to enable the first water outlet 121 to output pure water, at this time, the second control valve 24 may be in an opened or fully closed state, so that pure water which is initially output from the first water outlet 121 can flow into the drain main 13 at least partially through the drain branch 14 and be drained. After a preset time has elapsed, the first control valve 15 is closed and the second control valve 24 is opened, so that the pure water output from the first water outlet 121 can flow entirely into the water tank 21 and the water level in the water tank 21 is raised. Finally, when the pure water of the water tank 21 is sufficiently replenished, the second control valve 24 is closed and the water purification module stops producing water.

In the technical scheme of the utility model, the first water level sensor 22, the first control valve 15 and the second control valve 24 are mutually matched so that the pure water flowing out from the first water outlet 121 at least partially is discharged, and then the pure water flowing out later is introduced into the water tank 21, thereby realizing automatic water supplementing operation of the water tank 21 and further improving the problem of pollution of the water tank 21 by the first cup of pure water with poor water quality.

It should be noted that, there are various ways in which the second control valve 24 controls the first control valve 15 to open, for example, referring to fig. 1 and 2, in some embodiments, the water purifying apparatus further includes a high-voltage switch 16 disposed on the first pipeline 31, and the high-voltage switch 16 is electrically connected to the first control valve 15. Thus, when the second control valve 24 is opened, the high-pressure switch 16 senses that the water pressure in the water storage pipeline 30 is reduced, the high-pressure switch 16 is turned from the open state to the closed state, so as to control the water purification module to start water production and control the first control valve 15 to be opened. That is, the second control valve 24 indirectly controls the opening of the first control valve 15 through the high-pressure switch 16. Of course, in other embodiments, the second control valve 24 may directly control the opening of the first control valve 15, for example, the second control valve 24 is electrically connected to the first control valve 15, and after the second control valve 24 is opened, a control signal is output to the first control valve 15 to control the opening of the first control valve 15. In other embodiments, the first water level sensor 22 may be electrically connected to the first control valve 15 to control the first control valve 15 to be opened, further alternatively, when the first water level sensor 22 detects that the water level in the water tank 21 drops to a low water level, a control signal may be simultaneously output to the first control valve 15 and the second control valve 24, and the first control valve 15 is controlled to be opened for a preset time and the second control valve 24 is still in a closed state in the process, so that the pure water flowing out first is discharged through the water discharge branch 14 and the first control valve 15, and then the first control valve 15 is controlled to be closed and the second control valve 24 is controlled to be opened to introduce the pure water into the water tank 21. Of course, the signal of the first water level sensor 22 may control the first control valve 15 and the second control valve 24 to be simultaneously opened, so that a part of the pure water flowing out first is discharged and another part is introduced into the water tank 21.

Specifically, in some embodiments, the second control valve 24 is controlled to be closed after being briefly opened for T1 seconds, and the high-voltage switch 16 is triggered to be switched to a closed state by using the process of briefly opening the second control valve 24, so that the water purification module is triggered to start water production and the first control valve 15 is opened; since the second control valve 24 is closed immediately after a short opening, the initially discharged pure water basically flows to the drain branch 14 and the drain main 13, thereby further improving and even avoiding the problem of the first cup of pure water contaminating the water tank 21. Specifically, alternatively, the value of T1 ranges from 0.5 to 3, and it will be appreciated that if the value is too small, the high-voltage switch 16 may not be triggered, and if the value is too large, the first cup of pure water may flow into the water tank 21 with a greater probability.

Further alternatively, the output signal of the high-voltage switch 16 controls the first control valve 15 to be opened, the first control valve 15 is closed after being kept opened for T2 seconds, and the value range of T2 is 5 to 60, which can be understood that if the value is too small, the first cup of pure water may not be discharged, and if the value is too large, the waste of pure water is obviously caused.

Referring to fig. 1, in an embodiment, the water storage pipeline 30 includes a first pipeline 31 and a second pipeline 32 that are separately disposed, the water discharge branch 14 is communicated with the first pipeline 31, the second control valve 24 is disposed on the second pipeline 32, the water purifying module, the first pipeline 31, the water discharge branch 14 and the first control valve 15 are assembled together to form the water purifier 10, and the second pipeline 32, the second control valve 24, the first water level sensor 22 and the water tank 21 are assembled together to form the pipeline machine 20. At this time, the first control valve 15 is controlled by a control circuit on the water purifier 10, and the second control valve 24 and the first water level sensor 22 are controlled by a control circuit on the pipeline machine 20, that is, the first control valve 15 and the second control valve 24 are matched through respective control circuits of the water purifier 10 and the pipeline machine 20, so as to complete automatic water replenishing operation of the water tank 21.

It will be appreciated that the purifier 10 and the pipeline machine 20 may be integrally assembled or may be separately assembled to be installed at different positions, for example, the purifier 10 is disposed below a sink and the pipeline machine 20 is disposed on a wall above the sink. It should be noted that the value of T1 is positively related to the length of the pipeline between the water purifier 10 and the pipeline machine 20, for example, the value of T1 is larger when the length of the pipeline is longer, so as to ensure that the high voltage switch 16 can be triggered.

Referring to fig. 2, in another embodiment, the water storage pipeline 30 includes a first pipeline 31 and a second pipeline 32 that are separately disposed, the water discharge branch 14 is communicated with the first pipeline 31, the second control valve 24 is disposed on the first pipeline 31, the water purifying module, the first pipeline 31, the water discharge branch 14, the first control valve 15 and the second control valve 24 are assembled together to form the water purifier 10, and the second pipeline 32, the first water level sensor 22 and the water tank 21 are assembled together to form the pipeline machine 20. At this time, the first control valve 15 and the second control valve 24 are controlled by a control circuit on the water purifier 10, and the first water level sensor 22 is controlled by a control circuit on the pipeline machine 20.

When the second control valve 24 is disposed on the first pipeline 31, the water purifier 10 and the pipeline machine 20 are separately disposed, and the first water level sensor 22 is connected with the second control valve 24 in a wireless communication manner. In this way, no conductive wire connection between the water purifier 10 and the pipeline machine 20 is required, so that separate installation of the two can be facilitated. Particularly alternatively, the wireless communication connection includes, but is not limited to, wi-Fi communication, bluetooth communication, and infrared communication. Of course, in other embodiments, when the second control valve 24 is disposed on the first pipeline 31 and the water purifier 10 and the pipeline machine 20 are separately disposed, the first water level sensor 22 and the second control valve 24 may be connected in wired communication through a conductive wire.

It is to be understood that the electrical connection in this application includes, but is not limited to, a wired communication connection and a wireless communication connection, and in the embodiment in which the second control valve 24 is provided on the pipeline machine 20, the first water level sensor 22 and the second control valve 24 may be connected by wired communication through a control circuit board, or may be connected by wireless communication, which is not specifically limited in this application.

Of course, in other embodiments, the water purifying module and the water storage module may be assembled as a single body and constitute a unitary water purifying apparatus, i.e., without distinguishing the water purifier 10 from the pipeline machine 20. In this case, the first control valve 15, the second control valve 24, and the first water level sensor 22 may be connected by wired communication or wireless communication.

Referring to fig. 1 and 2, in some embodiments, the pipeline machine 20 further includes a second water level sensor 23 disposed in the water tank 21, the second water level sensor 23 is electrically connected to the first control valve 15, and a water level corresponding to the second water level sensor 23 is higher than a water level corresponding to the first water level sensor 22. That is, the first water level sensor 22 is used as a low water level sensor to control the water purifying device to automatically start the water replenishing of the water tank 21, and the second water level sensor 23 is used as a high water level sensor to control the water purifying device to automatically stop water replenishing of the water tank 21, so that the intelligent degree of the water purifying device can be improved, and the use experience is improved. Of course, in other embodiments, the second water level sensor 23 may not be provided, and the volume of the purified water supplied into the water tank 21 may be controlled by presetting the opening time of the second control valve 24, thereby controlling the water level line in the water tank 21.

Specifically, alternatively, the first control valve 15 and the second control valve 24 are configured as solenoid valves, but other types of on-off valves are also possible; the first water level sensor 22 and the second water level sensor 23 are configured as any one of a mechanical water level sensor, a capacitive water level sensor, a photoelectric water level sensor, an ultrasonic water level sensor, and the like, and the present application is not particularly limited.

Referring to fig. 1 and 2, in some embodiments, the water purifier 10 further includes a first check valve 171 disposed on the water discharge branch 14, wherein the first check valve 171 is capable of restricting water flowing from the second end of the water discharge branch 14 to the first end of the water discharge branch 14. Thus, when the main water outlet 112 supplies water to the outside, that is, in the daily water making mode of the water purifier 10, the waste water in the water discharge main path 13 enters the water storage pipeline 30 through the water discharge branch 14, so that the problem that the waste water flows back to the water tank 21 and causes water pollution is avoided. Specifically, alternatively, the first check valve 171 is disposed at the water inlet of the first control valve 15, or the first check valve 171 is disposed at the water outlet of the first control valve 15, which is not limited in this application. Of course, in other embodiments, the first check valve 171 may not be provided.

Referring to fig. 1 and 2, in some embodiments, the water purifier 10 further includes a waste valve 173 disposed on the main drain path 13, and the second end of the drain branch 14 is disposed downstream of the waste valve 173. Specifically, alternatively, the waste water valve 173 in this embodiment can realize the functions of full open and cut-off current limiting, that is, the normally open waste water valve 173, so that the waste water valve 173 can support the water making operation of the water purifying module under the condition of no power supply by default. Of course, in other embodiments, the waste valve 173 may alternatively be a normally closed waste valve 173, or no waste valve 173 may be provided.

In some embodiments, the first filter element 12 includes a reverse osmosis membrane and/or a nanofiltration membrane, for example, the first filter element 12 is configured as a reverse osmosis membrane filter element, so that pure water flowing out from the first water outlet 121 can reach a direct drinking standard, thereby improving the use experience of the water purifying device. Of course, in other embodiments, the first filter element 12 may be configured as a nanofiltration membrane element, or a composite filter element having both a reverse osmosis membrane and a nanofiltration membrane.

Referring to fig. 1 and 2, in some embodiments, the water purifier 10 further includes a second filter element 18, wherein a first end of the second filter element 18 is connected to the first water outlet 121, and a second end of the second filter element is connected to the first pipe 31 and the main water outlet 112. Specifically, the second filter element 18 may be configured as any one of a PP filter element, an activated carbon filter element, and a composite filter element. That is, the second filter element 18 serves as a rear filter element of the water purifier 10 and cooperates with the first filter element 12, so that the quality of purified water supplied to the outside can be further improved. Of course, in other embodiments, the second filter element 18 may not be provided, and the first water outlet 121 of the first filter element 12 may be directly connected to the water storage line 30.

Referring to fig. 1 and 2, in some embodiments, the water purifier 10 further includes a second check valve 172 disposed on the first conduit 31, the second check valve 172 being capable of restricting water flow from the high pressure switch 16 to the second filter element 18. In this way, the problem of water in the water storage line 30 flowing back into the second cartridge 18 can be avoided. Optionally, the second check valve 172 communicates the second cartridge 18 with the high pressure switch 16. Of course, in other embodiments, the second check valve 172 may be disposed downstream of the high-pressure switch 16 in the first conduit 31, that is, the high-pressure switch 16 may be in communication with the second filter element 18 and the second check valve 172, or the second check valve 172 may not be disposed.

Referring to fig. 1 and 2, in some embodiments, the water purifying apparatus further includes a faucet (not shown in the drawings) disposed at the main water outlet 112, and a third control valve 174 communicating the faucet with the first water outlet 121, wherein a control switch of the faucet is electrically connected to the third control valve 174. For example, the faucet may be configured as a hall faucet or an electronic faucet to facilitate user operation of taking water. Of course, in other embodiments, a mechanical faucet is also possible, and a check valve and a high-pressure switch 16 are sequentially connected between the second filter element 18 and the faucet.

The foregoing description is only of the optional embodiments of the present utility model, and is not intended to limit the scope of the utility model, and all the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims

1. A water purification apparatus, comprising:

2. The water purification apparatus of claim 1, wherein the water storage line comprises a first line and a second line which are separately provided, and the drainage branch line is communicated with the first line;

the second control valve is arranged on the second pipeline, the water purifying module, the first pipeline, the drainage branch and the first control valve are assembled into a whole to form a water purifier, and the second pipeline, the second control valve, the first water level sensor and the water tank are assembled into a whole to form a pipeline machine;

or the second control valve is arranged on the first pipeline, the water purifying module, the first pipeline, the drainage branch, the first control valve and the second control valve are assembled into a whole to form the water purifier, and the second pipeline, the first water level sensor and the water tank are assembled into a whole to form the pipeline machine.

3. The water purification apparatus of claim 2, wherein the water purifier further comprises a first one-way valve disposed in the drain branch, the first one-way valve being capable of restricting water flow from the second end of the drain branch to the first end of the drain branch.

4. The water purification apparatus of claim 2, wherein the water purifier further comprises a waste water valve disposed in the main drain, and the second end of the drain is disposed downstream of the waste water valve.

5. The water purification apparatus of claim 2, wherein the water purifier further comprises a high-voltage switch disposed on the first pipeline, the high-voltage switch being electrically connected to the first control valve.

6. The water purification apparatus of claim 5, further comprising a second filter element, a first end of the second filter element being in communication with the first water outlet and a second end being in communication with the first conduit and the main water outlet.

7. The water purification apparatus of claim 6, wherein the water purifier further comprises a second one-way valve disposed in the first conduit, the second one-way valve being capable of restricting water flow from the high pressure switch to the second filter element.

8. The water purification apparatus of claim 7, wherein the second one-way valve communicates with the second filter element and the high pressure switch.

9. The water purification apparatus of claim 2, wherein the water purifier and the pipeline machine are separately provided when the second control valve is provided to the first pipeline, and the first water level sensor is connected to the second control valve in wireless communication.

10. The water purification apparatus of claim 1, wherein the first filter element comprises a reverse osmosis membrane and/or a nanofiltration membrane;

and/or, the water purifying device further comprises a water tap arranged at the main water outlet and a third control valve communicated with the water tap and the first water outlet, and a control switch of the water tap is electrically connected with the third control valve.