CN112678885A

CN112678885A - Water purifying equipment

Info

Publication number: CN112678885A
Application number: CN201910995401.8A
Authority: CN
Inventors: 胡承欢; 王会会; 曾振杰; 袁焘
Original assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2019-10-18
Filing date: 2019-10-18
Publication date: 2021-04-20

Abstract

The invention relates to the technical field of concentrated water early warning, and provides water purification equipment. The water purifying equipment comprises a raw water tank, a concentrated water tank arranged in the raw water tank, and a base provided with a position sensor; the timing module is in signal connection with the position sensor; the control module is in signal connection with the timing module; the bottom of the raw water tank is provided with a first sensing piece for triggering the position sensor, the position sensor senses that the raw water tank is placed on the base to trigger the timing module to start accumulating the water making time, and the control module outputs a water making stopping signal according to the set time value when the timing module times to reach the full concentrated water. The invention can monitor the water level in the concentrated water tank in real time, and send out a water production stopping signal when the concentrated water is full, so as to prompt a user to treat in time and prevent the concentrated water from overflowing into the raw water tank, thereby effectively protecting the filter element and the water pump.

Description

Water purifying equipment

Technical Field

The invention relates to the technical field of concentrated water early warning, in particular to water purifying equipment.

Background

Water plays an important role in our life and is a source of life, and according to research reports, polluted impurities in drinking water can be roughly divided into germs, heavy metals, inorganic matters and organic matters, so that unclean water can cause certain harm to the health of human bodies after long-term drinking. In order to improve the quality of drinking water, more and more water purification devices are used in real time.

Wherein the theory of operation of water purification unit roughly is: raw water is generally treated in a tap water plant and then is conveyed to a raw water tank through an external drain pipe, the raw water in the raw water tank enters a filter element for filtering under the action of a water pump, purified water obtained after filtering enters a purified water tank, and concentrated water enters a concentrated water tank.

Water purification unit in the existing market can realize raw water, waste water separation. But when incessantly adding the running water to former water tank, along with going on of water treatment, the concentrated water in the concentrated water tank is also more and more, just can overflow in the former water tank when concentrated water tank water is full, leads to raw water concentration to rise, can accelerate the filter core loss after using for a long time, also can make the water pump knot incrustation scale and jam simultaneously to cause the water pump inefficacy.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides water purification equipment which can monitor the water level in a concentrated water tank in real time, send out a water production stopping signal when the concentrated water is full, prompt a user to process in time and prevent the concentrated water from overflowing into a raw water tank, so that a filter element and a water pump can be effectively protected.

According to the embodiment of the invention, the water purifying device comprises a raw water tank and a concentrated water tank arranged in the raw water tank, and further comprises:

a base provided with a position sensor;

the timing module is in signal connection with the position sensor;

the control module is in signal connection with the timing module;

the bottom of the raw water tank is provided with a first sensing piece for triggering the position sensor, the position sensor senses that the raw water tank is placed on the base to trigger the timing module to start accumulating the water making time, and the control module outputs a water making stopping signal according to the set time value when the timing module times to reach the full concentrated water.

According to the water purifying equipment provided by the embodiment of the invention, when the position sensor senses that the original water tank is placed on the base, the timing module is triggered to start accumulating the water making time, and when the timing module times to reach the set time length value of the full concentrated water, the control module outputs the water making stopping signal to remind a user to check the concentrated water tank in time and treat the concentrated water in time, so that the concentrated water of the concentrated water tank is prevented from overflowing.

In addition, the position sensor of this embodiment is installed on the base, outside being independent of former water tank and concentrated water tank, does not influence the installation of the normal dismouting and other structures of former water tank and concentrated water tank, makes things convenient for the position sensor installation moreover, ensures its stability and detection accuracy.

According to an embodiment of the invention, the base is further provided with a water level sensor, a floater for detecting a water level is arranged in the raw water tank, a second sensing part for sensing the water level sensor is constructed in the floater, the floater detects that the water level in the raw water tank is lower than a set water level to trigger the water level sensor, the water level sensor is in signal connection with the control module, and the control module outputs a water making stopping signal according to a feedback signal of the water level sensor.

In the embodiment, the water level sensor is arranged to sense the water level corresponding to the floater, and the water level sensor is triggered when the floater detects that the water level of raw water in the raw water tank is lower than a set water level, the control module outputs a water production stopping signal according to a detection signal fed back by the water level sensor so as to remind a user of timely checking whether the supply of the raw water in the raw water tank is abnormal or not, and the water production is stopped when the water level in the raw water tank is too low; thereby avoiding the condition that the system runs without raw water in the raw water tank and avoiding the damage of parts such as a water pump and the like.

According to an embodiment of the invention, the water-saving device further comprises a water pump and a filter element, wherein a water outlet of the raw water tank is connected to the filter element through a water outlet pipeline, the water pump is arranged on the water outlet pipeline, the filter element is connected to the concentrated water tank through a concentrated water pipeline, and a control valve is arranged on the concentrated water pipeline; the timing module is connected with the water pump, the water pump and the control valve are both connected with the control module, the position sensor senses that the raw water tank is placed on the base to trigger the timing module, the timing module starts to accumulate the water making time of the water pump, and the control module sends a water making stopping signal when the water making time of the water pump reaches a set time length value when the concentrated water is full of water, controls the water pump to stop and controls the control valve to be disconnected. Therefore, the water path supply is stopped in time, the concentrated water in the concentrated water tank is prevented from overflowing to the raw water tank, the water pump and the filter element are effectively protected from being damaged, and the service life is prolonged.

According to one embodiment of the invention, when the float detects that the water level in the raw water tank is lower than a set water level, the water level sensor is triggered, and the control module outputs a water making stopping signal according to a feedback signal of the water level sensor and controls the water pump to stop and the control valve to be disconnected. Reminding a user to check whether the raw water supply in the raw water tank is abnormal or not in time, and stopping water production when the water level in the raw water tank is too low; thereby avoiding the condition that the water purifying equipment runs without raw water in the raw water tank and avoiding the damage of parts such as a water pump and the like.

According to an embodiment of the present invention, the water purifying apparatus further comprises a display panel on which the water production stop signal is displayed. Therefore, the user can intuitively know the condition that the concentrated water tank is full of water or the original water tank is insufficient in water supply from the display panel, and the user can conveniently and timely process the concentrated water tank or the original water tank.

According to one embodiment of the invention, the control module is an electric control board of the water purification device, and the timing module is integrated in the position sensor or in the electric control board or on the water pump.

According to one embodiment of the invention, in order to facilitate installation of the position sensor and the water level sensor, the position sensor and the water level sensor are fixed at the bottom of the base through fasteners, the position sensor is arranged corresponding to the area where the first sensing member is located, and the water level sensor is arranged corresponding to the area where the floater is located.

According to an embodiment of the present invention, the first sensing element and the second sensing element are both magnetic elements, such as magnets, but may also be other structures capable of generating magnetic field induction.

According to one embodiment of the invention, in order to facilitate the installation of the float, the bottom in the raw water tank is provided with a float groove, the float is positioned in the float groove, and the top of the float groove is provided with a float plug for limiting the float floating space of the float.

According to one embodiment of the invention, a water inlet pipe is arranged at the bottom of the concentrated water tank, a first end of the water inlet pipe extends into the concentrated water tank, and a second end of the water inlet pipe extends out of the concentrated water tank;

the raw water tank bottom is formed with the outlet, concentrated water tank install in the raw water tank, be formed with on the raw water tank the interface of intaking of concentrated water tank, the second end of inlet tube with the interface of intaking switches on.

According to one embodiment of the invention, the outer surface of the second end of the water inlet pipe is provided with an annular groove, a first sealing ring is arranged in the annular groove, and the first sealing ring is in interference fit with the inner surface of the water inlet interface.

According to one embodiment of the invention, a buckle is formed on the side wall of the concentrated water tank, and a clamping groove matched with the buckle is formed on the raw water tank.

According to one embodiment of the invention, a first stopping part is formed on the inner surface of the water inlet interface, and a first valve assembly for opening and closing the water inlet interface is further installed in the water inlet interface; the first valve assembly includes:

the first plug is positioned at the inner side of the first stopping part;

the first end of the first mandrel is connected with the first plug in a pluggable mode, the second end of the first mandrel is provided with a second stopping portion, and the second stopping portion is located on the outer side of the first stopping portion;

the first elastic piece is positioned between the first stopping part and the second stopping part, and the first elastic piece is abutted against the second stopping part and enables the first plug to be attached to the first stopping part.

According to one embodiment of the invention, a drain pipe is connected to a drain opening of the raw water tank, a first end of the drain pipe is positioned in the raw water tank, a second end of the drain pipe is positioned outside the raw water tank, a filter screen assembly is installed at the drain pipe, the filter screen assembly comprises a cylindrical filter screen and a filter screen cover, and the cylindrical filter screen is installed at the first end of the drain pipe and extends along the length direction of the drain pipe; the filter screen cover is sleeved outside the cylindrical filter screen, a liquid inlet is formed between the edge of the filter screen cover and the outer wall of the drain pipe, a liquid outlet is formed at the second end of the drain pipe, and the liquid level of the liquid outlet is lower than that of the liquid inlet, so that a siphon channel passing through the cylindrical filter screen is formed between the liquid inlet and the liquid outlet; the bottom plate of the concentrated water tank is abutted against the top of the filter screen cover.

This embodiment passes through the siphon passageway for liquid flows to the tube-shape filter screen from the inlet under the siphon effect, and discharges from the liquid outlet, and liquid circulation in-process is fully contacted with tube-shape filter screen different positions under the siphon effect, and then guarantees the filter effect of tube-shape filter screen. As the cylindrical filter screen extends along the length direction of the drain pipe, the cylindrical filter screen has larger area and better filtering effect compared with the traditional filter screen. And because the cylindrical filter screen is arranged at the end part of the drain pipe, the cylindrical filter screen can be cleaned only by removing the filter screen cover, so that the cylindrical filter screen is convenient to clean, and the blockage of the cylindrical filter screen can be avoided.

According to one embodiment of the present invention, a third stopper is provided on an inner surface of the drain pipe, and a second valve assembly for opening and closing the drain port is provided in the drain pipe;

the second valve assembly includes:

a second plug located inside the third stopper;

the first end of the second mandrel is connected with the second plug in a pluggable mode, a fourth stopping portion is formed at the second end of the second mandrel, and the fourth stopping portion is located on the outer side of the third stopping portion;

and the second elastic piece is positioned between the third stopping part and the fourth stopping part and is abutted against the fourth stopping part, so that the second plug is attached to the third stopping part.

According to one embodiment of the invention, in order to facilitate the base to be installed on the bottom of the raw water tank, the upper surface of the base is configured with a drain port seat and a water inlet seat which are arranged side by side, the drain port seat is sleeved on the outer surface of the second end of the drain pipe, and the water inlet seat is sleeved on the outer surface of the water inlet interface.

According to an embodiment of the invention, a drain sealing ring is sleeved outside the second end of the drain pipe, the drain port seat is sleeved outside the drain sealing ring in a sealing manner, the water inlet port seat is sleeved outside the water inlet sealing ring in a sealing manner, and the water inlet port seat is sleeved outside the water inlet sealing ring in a sealing manner.

According to one embodiment of the invention, the water purification apparatus is a water purifier, a drinking fountain or a water purifier.

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

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is an exploded schematic view of a partial part of a water purifying apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic sectional view of a part of a water purifying apparatus according to an embodiment of the present invention;

fig. 3 is a perspective view of a water purifying apparatus according to an embodiment of the present invention after partial components are assembled;

FIG. 4 is a schematic view of the connection and operation of the components of the water purifying apparatus according to the embodiment of the present invention;

reference numerals:

101: a top cover; 102: a concentrated water tank; 103: a screen assembly; 1031: a filter screen cover; 1032: a cylindrical filter screen; 104: a second valve assembly; 1041: a second stopper; 1042: a second elastic member; 1043: a second mandrel; 105: a raw water tank; 106: a float; 107: a float plug; 108: a first seal ring; 109: a first valve assembly; 1091: a first stopper; 1092: a first elastic member; 1093: a first mandrel; 110: a water inlet sealing ring; 111: a drainage sealing ring; 112: a water inlet seat; 113: a drain outlet seat; 114: a position sensor; 115: a water level sensor; 116: a base; 117: a fastener; 118: a first sensing member;

201: a water inlet pipe; 202: a water inlet interface; 203: a siphon channel;

301: a recessed structure;

401: a water pump; 402: a filter element; 403: and (4) controlling the valve.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

According to an embodiment of the present invention, referring to fig. 1 to 2, there is provided a water purifying apparatus including a raw water tank 105 and a concentrated water tank 102 installed in the raw water tank 105, the water purifying apparatus further including:

a base 116 provided with a position sensor 114;

a timing module in signal connection with the position sensor 114;

the control module is in signal connection with the timing module;

the bottom of the raw water tank 105 is provided with a first sensing piece 118 for triggering the position sensor 114, the position sensor 114 senses that the raw water tank 105 is placed on the base 116 to trigger the timing module to start accumulating the water making time, and the control module outputs a water making stopping signal according to the set time value when the timing module times to reach the full concentrated water.

According to the water purifying device provided by the embodiment of the invention, when the position sensor 114 senses that the raw water tank 105 is placed on the base 116, the timing module is triggered to start accumulating the water making time, and when the timing module counts the time to reach the set time value of the concentrated water full, the control module outputs the water making stopping signal to remind a user to check the concentrated water tank 102 in time and process the concentrated water in time, so that the concentrated water of the concentrated water tank 102 is prevented from overflowing.

In addition, the position sensor 114 of the present embodiment is mounted on the base 116, which is independent from the raw water tank 105 and the concentrated water tank 102, does not affect the normal disassembly and assembly of the raw water tank 105 and the concentrated water tank 102 and the installation of other structures, and facilitates the installation of the position sensor 114, ensuring the stability and the detection accuracy thereof.

In this embodiment, "the first sensing element 118 for triggering the position sensor 114 is disposed at the bottom of the raw water tank 105", which means that the position sensor 114 and the first sensing element 118 can sense each other, for example, an induced magnetic field or an induced force is generated, for example, when the first sensing element 118, that is, the raw water tank 105, contacts the base 116, an elastic sheet in the position sensor 114 is sprung open, so that the position sensor 114 is triggered and sends a signal that the raw water tank 105 contacts the base 116, and when the raw water tank 105 leaves the base 116, the elastic sheet in the position sensor 114 is closed due to disappearance of the induced force, so that the position sensor 114 is triggered and sends a signal that the raw water tank 105 leaves the base 116 to the control module.

It should be noted that the "water production time period" refers to the time period during which the water purification apparatus actually performs water treatment, that is, the time period during which the water purification apparatus does not perform water treatment (for example, shutdown or full water purification tank does not require water production) is not counted during the water production time period.

Note that the "set time length value for the full concentrated water" means a time taken for the full concentrated water in the concentrated water tank 102 to be calculated during the water production process, and is used as the set time length value for the full concentrated water.

According to an embodiment of the present invention, the base 116 is further provided with a water level sensor 115, a float 106 for detecting a water level is provided in the raw water tank 105, a second sensing member for sensing the water level sensor 115 is configured in the float 106, the water level sensor 115 is triggered when the float 106 detects that the water level in the raw water tank 105 is lower than a set water level, the water level sensor 115 is in signal connection with the control module, and the control module outputs a water stop signal according to a feedback signal of the water level sensor 115.

The "feedback signal" here is a feedback signal in which the water level sensor 115 receives a signal that the float 106 detects that the water level in the raw water tank 105 is lower than the set water level.

It should be noted that when the float 106 detects that the water level of the raw water tank 105 is lower than the set water level, that is, the float 106 is close to the bottom of the raw water tank 105, the second sensing member senses the water level sensor 115, at this time, the elastic piece in the water level sensor 115 is bounced open, and the water level sensor 115 is triggered to send out a signal that the water level in the raw water tank 105 is lower than the set water level, whereas when the float 106 detects that the water level of the raw water tank 105 is higher than the set water level, that is, the float 106 is far from the bottom of the raw water tank 105, the sensing between the second sensing member and the water level sensor 115 is weakened or disappeared, the elastic piece in the water level sensor 115 is closed, at this time, the water level sensor 115 sends out a signal that the water level of the raw.

In the embodiment, the water level sensor 115 is arranged to sense the water level of the float 106, and when the float 106 detects that the water level of raw water in the raw water tank 105 is lower than a set water level, the water level sensor 115 is triggered, and the control module outputs a water making stopping signal according to a detection signal fed back by the water level sensor 115 to remind a user to check whether the supply of raw water in the raw water tank 105 is abnormal in time, so that water making is stopped when the water level in the raw water tank 105 is too low; therefore, the condition that the system runs without raw water in the raw water tank 105 is avoided, and the damage of parts such as the water pump 401 is avoided.

It should be noted here that the normal supply of raw water in the raw water tank 105 is a precondition for detecting the level of the concentrated water, that is, if the level sensor 115 detects that the float 106 is at a low level, the water production stop signal is sent out, even if the time counted by the timing module does not reach the set time length value of the full concentrated water, the system stops water production, so as to ensure the safe use of the raw water tank 105.

In addition, the water level sensor 115 is independent of the raw water tank 105, normal disassembly and assembly of the raw water tank 105 are not affected, installation of the water level sensor 115 is facilitated, and stability and detection accuracy of the water level sensor are guaranteed.

In this embodiment, the water level sensor 115 may be a pressure-capacitance sensor.

As shown in fig. 4, the water purifying apparatus of this embodiment further includes a water pump 401 and a filter element 402, a water outlet of the raw water tank is connected to the filter element 402 through a water outlet pipeline, the water pump 401 is disposed on the water outlet pipeline, the filter element 402 is connected to the concentrated water tank 102 through a concentrated water pipeline, and a control valve 403 is disposed on the concentrated water pipeline; the timing module is connected with the water pump 401, the water pump 401 and the control valve 403 are both connected with the control module, the position sensor 114 senses that the raw water tank 105 is placed on the base 116 to trigger the timing module, the timing module starts to accumulate the water making time of the water pump 401, and the control module sends a water making stopping signal when the water making time of the water pump 401 reaches the set time length value when the concentrated water is full, controls the water pump 401 to stop and controls the control valve 403 to be disconnected. Therefore, the water path supply is stopped in time, the concentrated water in the concentrated water tank 102 is prevented from overflowing to the raw water tank 105, the water pump 401 and the filter element 402 are effectively protected from being damaged, and the service life is prolonged.

The "water producing period of the water pump 401" herein includes an operation period in which the water pump 401 is turned on at any time, including an operation period of the water pump 401 from when the raw water tank 105 is placed on the base 116 to when the raw water tank 105 is lifted next time, for example, including an operation period in which the raw water tank 105 is not lifted, and the water pump 401 is operated by manually adding water to the raw water tank 105.

According to an embodiment of the present invention, when the float 106 detects that the water level in the raw water tank 105 is lower than the set water level, the water level sensor 115 is triggered, and the control module outputs a water production stopping signal according to the feedback signal of the water level sensor 115, and controls the water pump 401 to stop and the control valve to be turned off. Reminding a user to check whether the raw water supply in the raw water tank 105 is abnormal or not in time, and stopping water production when the water level in the raw water tank 105 is too low; thereby avoiding the condition that the water purifying equipment runs empty because no raw water exists in the raw water tank 105 and avoiding the damage of parts such as the water pump 401 and the like.

According to an embodiment of the present invention, the water purifying apparatus further comprises a display panel on which the water production stop signal is displayed. Therefore, the user can intuitively know that the concentrated water tank 102 is full or the raw water tank 105 is short of water supply from the display panel, so that the user can conveniently and timely treat the concentrated water tank 102 or the raw water tank 105. The concentrated water is prevented from overflowing into the raw water tank 105, so that the water pump 401 and the filter element 402 are protected, or the condition that the water pump 401 is damaged due to the fact that the system runs empty because the raw water tank 105 is lack of water is avoided.

According to an embodiment of the present invention, the control module may directly adopt an electronic control board of the water purifying apparatus, so that the timing module may be integrated in the position sensor 114 or the electronic control board or the water pump 401 without additionally providing the control module. The specific setting position can be set according to the requirement.

According to one embodiment of the present invention, the first inductive element 118 and the second inductive element can be magnetic elements, and the magnetic elements refer to objects that react to the magnetic field in some way, and do not require to generate the magnetic field themselves. The magnetic part can be prepared from any magnetic material, such as magnets, low-carbon steel and the like; of course, the magnetic member may be an energized coil. In the embodiment, the magnetic member is taken as an example, and the magnet and the position sensor 114 or the water level sensor 115 are used to generate an induced magnetic field, and at this time, the elastic pieces in the position sensor 114 and the water level sensor 115 are metal pieces.

In one embodiment, the position sensor 114 and the water level sensor 115 are fixed on the bottom of the base 116 by fasteners 117, such as screws, and for positioning, corresponding positioning grooves are further disposed on the bottom of the base 116, and the position sensor 114 and the water level sensor 115 are first positioned in the positioning grooves and then fixed by screws.

In order to ensure a large magnetic field or force between them, the position sensor 114 is disposed corresponding to the area where the first sensing member 118 is located, and the water level sensor 115 is disposed corresponding to the area where the float 106 is located, where the "located area" may be a position where the position sensor 114 is directly opposite to or slightly deviated from the first sensing member 118, or a position where the water level sensor 115 is directly opposite to or slightly deviated from the second sensing member.

According to an embodiment of the present invention, in order to facilitate the installation of the float 106, the bottom inside the raw water tank 105 is provided with a float groove in which the float 106 is seated, and the top of the float groove is provided with a float stopper 107 defining a floating space of the float 106. Wherein, the float plug 107 and the float groove limit the float space of the float 106, the float 106 floats up and down in the float space according to the water level, and the float 106 can not be separated from the float groove because of the limit of the float plug 107.

According to the water purifying equipment provided by the embodiment of the invention, the bottom of the concentrated water tank 102 is provided with the water inlet pipe 201, the first end of the water inlet pipe 201 extends into the concentrated water tank 102 so as to facilitate the concentrated water to enter the concentrated water tank 102 from the first end of the water inlet pipe 201, and the second end of the water inlet pipe 201 extends out of the concentrated water tank 102 so as to facilitate the connection with an external water inlet pipeline;

the bottom of the raw water tank 105 is formed with a water outlet, the concentrated water tank 102 is installed in the raw water tank 105, the raw water tank 105 is formed with a water inlet port 202 of the concentrated water tank 102, and the second end of the water inlet pipe 201 is communicated with the water inlet port 202.

Raw water in the raw water tank 105 is discharged from the water outlet, concentrated water is formed after filtration and enters the water inlet pipe 201 through the water inlet interface 202 and is discharged into the concentrated water tank 102, a water level signal of the raw water tank 105 is obtained through the water level sensor 115, the position sensor 114 senses that the raw water tank 105 is positioned on the base 116 to trigger the timing module to time, the formation time of the concentrated water in the concentrated water tank 102 is calculated, and the water level of the concentrated water tank 102 is fed back in real time.

In order to facilitate the discharge of the concentrated water into the concentrated water tank 102, the end of the first end sidewall of the water inlet pipe 201 is provided with a concentrated water outlet. The concentrate outlet is provided at the sidewall of the inlet pipe 201 instead of the top so that the concentrate does not flow from the inlet pipe 201 into the concentrate tank 102 in a vertical direction.

According to the embodiment of the present invention, the concentrated water tank 102 is disposed in the raw water tank 105, and the bottom surface of the raw water tank 105 is formed with a water inlet port 202 communicated with the water inlet pipe 201. Under this kind of condition, when guaranteeing raw water, waste water separation, can save water purification unit's occupation space.

Wherein the concentrate tank 102 is embedded in the raw water tank 105 and is detachably connected to the raw water tank 105. In this case, the concentrated water tank 102 and the raw water tank 105 are more conveniently and sufficiently cleaned. Specifically, to clean the raw water tank 105, the concentrate tank 102 may be detached from the raw water tank 105. Similarly, to facilitate cleaning of the concentrate tank 102, the concentrate tank 102 may be removed from the raw water tank 105.

The concentrated water tank 102 and the raw water tank 105 may be fixed by a snap or any other detachable manner.

As shown in fig. 2, a clip is formed on a side wall of the concentrated water tank 102, and a clip groove that fits the clip is formed on the raw water tank 105. Furthermore, when the concentrated water tank 102 enters the raw water tank 105, the fastener enters the slot and is fastened under the action of gravity. Even if the concentrated water tank 102 is subjected to the buoyancy of the water in the raw water tank 105, the engagement between the snap and the catch can prevent the concentrated water tank 102 from being separated from the raw water tank 105.

Wherein, the buckle can be set to have certain elastic structure, and then guarantees the elastic fit between buckle and the draw-in groove.

It should be understood that the connection between the raw water tank 105 and the concentrated water tank 102 is not limited by the examples.

Also, referring to fig. 2, the inlet pipe 201 has a slim structure. Of course, the structure in the drawings does not limit the water inlet pipe 201, and the water inlet pipe 201 only needs to meet the water inlet requirement of the concentrated water.

Referring to fig. 1 to 2, the second end of the water inlet pipe 201 is located outside the concentrated water tank 102, and the second end of the water inlet pipe 201 can be connected with the water inlet port 202. Wherein, in order to prevent the concentrated water from leaking into the raw water tank 105 through the water inlet interface 202, the water inlet pipe 201 is connected with the water inlet interface 202 in a sealing way.

According to an embodiment of the present invention, an annular groove is formed on an outer surface of the second end of the water inlet pipe 201, the annular groove is provided with the first sealing ring 108, the first sealing ring 108 is in interference fit with an inner surface of the water inlet port 202, and thus the first sealing ring 108 ensures the sealing connection between the water inlet pipe 201 and the water inlet port 202.

When the inlet pipe 201 and the water inlet interface 202 adopt a symmetrical structure, the outer surface of the second end of the inlet pipe 201 along the direction close to the water inlet interface 202 inclines towards the direction far away from the central line of the inlet pipe 201. Correspondingly, the inner surface of water inlet port 202 is inclined in a direction towards the centre line of water inlet pipe 201 in a direction towards water inlet pipe 201. Under the condition, a certain clamping locking effect is achieved between the water inlet pipe 201 and the water inlet interface 202, and the sealing effect between the water inlet pipe 201 and the water inlet interface 202 can be fully guaranteed due to the fact that the elastic first sealing ring 108 is arranged on the outer surface of the water inlet pipe 201.

The former water tank 105 of this embodiment, its outside both sides are formed with handheld portion, and handheld portion corresponds and distributes in the left and right sides of fig. 2, and under this kind of circumstances, the in-process of holding water purification unit can be avoided in the setting of handheld portion, and water purification unit takes place to rock. As shown in fig. 3, the hand-held portion may be a recessed structure 301 formed on the raw water tank 105.

In addition, referring to fig. 1 to 2, the water purifying apparatus further includes a top cover 101, wherein the top cover 101 is detachably mounted at an opening of the raw water tank 105, so as to facilitate the filling of water into the raw water tank 105 and the discharge of concentrated water in the concentrated water tank 102.

Further, as can be seen from fig. 1 and 2, a first stopper is formed on an inner surface of the water inlet 202, and a first valve assembly 109 for opening and closing the water inlet 202 is further installed in the water inlet 202. Among them, the first valve assembly 109 includes a first stopper 1091, a first spindle 1093, and a first elastic member 1092. The first plug 1091 is located inside the first stop; the first end of the first mandrel 1093 is connected with the first plug 1091 in a pluggable manner, the second end of the first mandrel 1093 is provided with a second stopping portion, and the second stopping portion is located outside the first stopping portion; the first elastic member 1092 is located between the first stopper and the second stopper, and the first elastic member 1092 abuts against the second stopper, so that the first plug 1091 is attached to the first stopper.

Both the "inside of the first stopper" and the "outside of the first stopper" are relative to the raw water tank 105. In fig. 2, the upper side of the first stopping portion is closer to the interior of the raw water tank 105, corresponding to the inner side of the first stopping portion; the lower side of the first blocking portion is closer to the outside of the raw water tank 105 and corresponds to the outer side of the first blocking portion.

When the water purifying equipment is installed on the corresponding water purifying equipment, the first mandrel 1093 is jacked up, at this time, the first elastic member 1092 is compressed, and the first mandrel 1093 drives the first plug 1091 to separate from the end surface of the first stopper, so that the communication between the concentrated water tank 102 and the water channel of the water purifying equipment is realized.

Wherein, the first plug 1091 may be, but need not be, a silicone plug with good sealing effect. The first elastic member 1092 may, but need not, employ a readily available spring. Wherein, a connection hole may be formed on the silicone plug, and then the first end of the first mandrel 1093 is inserted into the connection hole on the silicone plug after passing through the spring.

The end surface of the first stopper needs to be in sealing engagement with the first plug 1091, so that the first stopper extends along the inner surface of the water inlet port 202. The second stopper is used to limit the first elastic member 1092 and ensure that the first elastic member 1092 is located between the first stopper and the second stopper, so there is no special requirement for the shape of the second stopper.

According to one embodiment of the present invention, a drain pipe is connected to a drain outlet of the raw water tank 105, a first end of the drain pipe is located in the raw water tank 105, a second end of the drain pipe is located outside the raw water tank 105, a strainer assembly 103 is installed at the drain pipe, the strainer assembly 103 includes a cylindrical strainer 1032 and a strainer cover 1031, the cylindrical strainer 1032 is installed at the first end of the drain pipe and extends along the length direction of the drain pipe; the filter screen cover 1031 is sleeved outside the tubular filter screen 1032, a liquid inlet is formed between the edge of the filter screen cover 1031 and the outer wall of the drain pipe, a liquid outlet is formed at the second end of the drain pipe, and the liquid level of the liquid outlet is lower than that of the liquid inlet so as to form a siphon channel 203 passing through the tubular filter screen 1032 between the liquid inlet and the liquid outlet.

Referring to fig. 2, the siphon channel 203 is indicated by a curve, wherein the starting point of the curve corresponds to the liquid inlet of the siphon channel 203, the ending point of the curve corresponds to the liquid outlet of the siphon channel 203, and the direction of the arrow on the curve indicates the flowing direction of the liquid in the siphon channel 203. It should be noted that, in the position shown in the drawing of fig. 2, the screen cover 1031 and the drain pipe are clamped, but a gap exists between the screen cover 1031 and the drain pipe along the periphery of the drain pipe, and further, the siphon passage 203 is formed between the screen cover 1031 and the drain pipe, between the screen cover 1031 and the tubular screen 1032, and inside the tubular screen 1032.

In fig. 2, it can be approximately considered that a U-shaped channel is formed between a curve located on the left side of the cylindrical screen 1032 and a curve located on the right side of the cylindrical screen 1032, and an end of the U-shaped channel having a high opening is a starting point of the left-side curve, and an end of the U-shaped channel having a low opening is an end point of the right-side curve. Of course, in fig. 2, since the cylindrical screen 1032 has many filtering holes, it can be seen that a U-shaped channel is formed at each filtering hole, and only one of the U-shaped channels is shown in the graph of fig. 2.

This embodiment is through forming siphon passageway 203 for liquid flows to tube-shape filter screen 1032 from the inlet under the siphonic action, and discharges from the liquid outlet, and liquid circulation in-process is fully contacted with tube-shape filter screen 1032 different positions under the siphonic action, and then guarantees tube-shape filter screen 1032's filter effect. Since the tubular screen 1032 extends along the length direction of the drain pipe, it is obvious that the tubular screen 1032 has a larger area and a better filtering effect than the conventional screen. In addition, since the tubular strainer 1032 is disposed at an end of the drain pipe, the tubular strainer 1032 can be cleaned only by removing the strainer cover 1031, so that the cleaning is convenient and the blockage of the tubular strainer 1032 can be avoided.

Wherein, when water pump 401 set up before filter core 402, set up filter screen assembly 103 through the drain pipe department at former water tank 105 for the raw water filters through filter screen assembly 103 earlier before getting into water pump 401, in the middle of the foreign matter that can avoid carrying in the raw water gets into water pump 401, prevents that water pump 401 from becoming invalid, guarantees water purification unit's life.

Referring to fig. 2, the edge of the filter cover 1031 refers to the area of the filter cover 1031 near the bottom.

In addition, since the tubular strainer 1032 is disposed at an end of the drain pipe, the tubular strainer 1032 can be cleaned only by removing the strainer cover 1031, so that the cleaning is convenient and the blockage of the tubular strainer 1032 can be avoided. And through set up this kind of filter screen subassembly 103 at the drain pipe, can prevent that impurities such as iron rust, suspended solid, colloidal substance in former aquatic from directly flowing from water purification unit, avoid causing harm to the health.

It is worth mentioning that the filter screen cover 1031 sleeved outside the cylindrical filter screen 1032 also has a certain blocking effect on the impurities with larger volume.

The tubular screen 1032 extends in the longitudinal direction of the drain pipe, and the height direction of the tubular screen 1032 is the same as the longitudinal direction of the drain pipe. When the cross section of the drain pipe is circular, the length direction of the drain pipe is also the axial direction of the drain pipe; when the cross section of the drain pipe is square, the length direction of the drain pipe is also the central axis direction of the drain pipe. The shape and size of the cross section of the drain pipe can be different corresponding to different places.

The cylindrical screen 1032 may have an integral structure, or a plurality of screens may be connected by another member. In addition, the cross section of the cylindrical screen 1032 may be circular, square, triangular, irregular, etc.

The screen assembly 103 may also include a bracket for securing the cylindrical screen 1032. For example, the support includes a top plate, a bottom opening frame, and a support beam, both ends of the support beam are respectively connected to the top plate and the bottom opening frame, and both ends of the cylindrical filter net 1032 along the height direction thereof are respectively fixed to the top plate and the bottom opening frame. The tubular screen 1032 can be connected to the first end of the drain pipe through the bottom opening frame. By providing such a bracket, the structural strength of the tubular screen 1032 can be ensured, preventing the tubular screen 1032 from being deformed after a period of use. Wherein, the quantity of supporting beam is many to evenly set up along tube-shape filter screen 1032's peripheral direction, and then through the setting of many supporting beams, can guarantee the homogeneity of tube-shape filter screen 1032 atress ability.

Wherein the top and bottom aperture frames have a shape corresponding to the cross-sectional shape of the tubular screen 1032.

The cylindrical filter screen 1032 and the support can be prepared through an in-mold injection molding process, so that the cylindrical filter screen 1032 is reliably connected with the top plate and the bottom opening frame, and water can only flow through the cylindrical filter screen 1032.

An annular mounting groove is formed in the outer surface of the bottom opening frame, and a second sealing ring is fixed to the annular mounting groove. Furthermore, the bottom opening frame at least partially extends into the drain pipe, and the second sealing ring is in interference fit with the inner surface of the first end of the drain pipe, so that the second sealing ring and the first end of the drain pipe can be ensured to be fixed relatively.

Of course, the bottom port frame and the drain pipe can be fixedly connected through the second sealing ring and can be connected through other modes. For example, the bottom port frame is connected with the first end of the drain pipe through a clamp; or the bottom opening frame is connected with the first end of the drain pipe through a pipe joint; still alternatively, the bottom port frame and the first end of the drain pipe are threadably connected, and so on. Even, the bottom port frame and the first end of the drain pipe can be welded, bonded and the like.

The cylindrical filter net 1032 and the drain pipe can be directly connected in a detachable mode, and certainly can be indirectly connected in a detachable mode through the support.

The tubular filter net 1032 is detachably connected with the drain pipe, so that the tubular filter net 1032 can be periodically detached and cleaned, and the tubular filter net 1032 can be conveniently recycled. Of course, replacement of the tubular screen 1032 may be performed by detaching and attaching the screen.

Further, be connected through the detachable mode between drain pipe lateral wall and the filter screen lid 1031, and then the dismouting of filter screen subassembly 103 that can be convenient for makes things convenient for filter screen subassembly 103's change and washing etc..

For example, the outer side wall of the drain pipe can be clamped to the filter cover 1031. Accordingly, the drain pipe and the screen cover 1031 are securely attached to each other, and the screen cover 1031 is prevented from separating from the tubular screen 1032 by buoyancy. Of course, besides the connection by the clamping, the outer side wall of the drain pipe can be detachably connected with the filter cover 1031, and it is only necessary to ensure that the liquid can enter the siphon channel 203 while ensuring the connection between the outer side wall of the drain pipe and the filter cover 1031, so that a channel for liquid circulation is required between the drain pipe and the filter cover 1031.

Further, the drain pipe lateral wall joint in the joint section of filter screen lid 1031, does not influence the feed liquor area of inlet from this. Be formed with joint muscle position at the joint section to the setting of joint muscle position guarantees that the clearance is even so that water gets into in the middle of siphon passageway 203 between drain pipe and the filter screen lid 1031, makes more smooth and easy passing through tube-shape filter screen 1032 of water.

According to the embodiment of the present invention, the bottom plate of the concentrated water tank 102 may abut against the top of the strainer cover 1031, so that the strainer cover 1031 may be prevented from separating from the cylindrical strainer 1032 under the action of buoyancy.

Referring to fig. 1 and 2, in order to ensure that the concentrate tank 102 has a sufficient volume, the concentrate tank 102 is formed in a special shape. Specifically, the concentrated water tank 102 forms an avoiding concave position corresponding to the filter screen assembly 103, and interference between the concentrated water tank 102 and the filter screen assembly 103 is prevented through the arrangement of the avoiding concave position.

Further, referring to fig. 1 and 2, a third stopper is disposed on an inner surface of the drain pipe, and a second valve assembly 104 for opening and closing the drain opening is disposed in the drain pipe.

The second valve assembly 104 may be configured in the same manner as the first valve assembly 109 described above.

Specifically, the second valve assembly 104 includes a second plug 1041, a second spindle 1043, and a second resilient member 1042. The second plug 1041 is located inside the third stopper; the first end of the second spindle 1043 is connected to the second plug 1041 in a pluggable manner, a fourth stopping portion is formed at the second end of the second spindle 1043, and the fourth stopping portion is located at the outer side of the third stopping portion; the second elastic member 1042 is located between the third stopping portion and the fourth stopping portion, and the second elastic member 1042 abuts against the fourth stopping portion, so that the second plug 1041 fits the third stopping portion.

The operation principle and further structure of the second valve assembly 104 can refer to the first valve assembly 109, and will not be described herein.

Also, the "inner side of the third stopper" and the "outer side of the third stopper" are also relative to the raw water tank 105. In fig. 2, the upper side of the third stopping portion is closer to the inside of the raw water tank 105, corresponding to the inner side of the third stopping portion; the lower side of the third stopping portion is closer to the outside of the raw water tank 105 and corresponds to the outer side of the third stopping portion.

According to an embodiment of the present invention, in order to facilitate the base 116 to be installed on the bottom of the raw water tank 105, in other words, in order to facilitate the raw water tank 105 (including the concentrated water tank 102) to be installed on the base 116, the upper surface of the base 116 is configured with the drain seat 113 and the inlet seat 112 arranged side by side, the drain seat 113 is sleeved on the outer surface of the second end of the drain pipe, and the inlet seat 112 is sleeved on the outer surface of the inlet port 202, so as to ensure the stability of the raw water tank 105 and the base 116 after being connected.

The water outlet base 113 is provided with a through hole communicated with a water outlet pipe, and the water inlet base 112 is provided with a through hole communicated with the water inlet interface 202; the lower ends of the drain outlet seat 113 and the water inlet seat 112 are both used for connecting external pipelines.

According to an embodiment of the present invention, the second end of the drain pipe is sleeved with a drain sealing ring 111, the drain seat 113 is hermetically sealed outside the drain sealing ring 111 to ensure a sealing effect between the drain seat 113 and the drain pipe, so as to prevent leakage of raw water, the water inlet port 202 is sleeved with a water inlet sealing ring 110, and the water inlet seat 112 is hermetically sleeved outside the water inlet sealing ring 110 to ensure a sealing effect between the water inlet seat 112 and the water inlet port 202, so as to prevent leakage of concentrated water.

According to the embodiment of the invention, during the operation of the water purifying apparatus, the water pump 401 operates to generate negative pressure at the drain outlet of the raw water tank 105, so that the raw water in the raw water tank 105 enters the cylindrical filter screen 1032 through the filter screen cover 1031, the water enters the water pump 401 after being filtered by the cylindrical filter screen 1032, the water enters the filter element 402 after being pressurized by the water pump 401, pure water is discharged from one end of the filter element 402, concentrated water is discharged from the other end of the filter element 402, and the concentrated water enters the concentrated water tank 102 from the concentrated water outlet through the control valve 403 and the water inlet pipe 201 of the concentrated water tank 102.

In this embodiment, the control valve 403 may be a normally closed solenoid valve, and of course, other suitable valve types may be selected.

The working principle of the invention is illustrated by a specific embodiment: the water purification equipment passes the preliminary test, the concentrated water produced by the raw water in the two tanks is just to the highest water level of the concentrated water tank 102, and the water production process lasts for 6 min.

The raw water tank 105 is placed on the base 116, and the position sensor 114 receives a signal to trigger the timing module to start accumulating the system water production time:

there are two cases to be distinguished here: 1. when the accumulated water making time is less than 6min and the floater 106 is positioned at a low water level, namely the water level sensor 115 receives a signal that the original water tank 105 is positioned at the low water level, the electric control board controls the water pump 401 to stop making water, and the signal is displayed on the display panel to prompt a user;

2. when the water making time is accumulated to 6min and the floater 106 is positioned at a high water level, the electric control board sends out a concentrated water full signal, the electric control board controls the water pump 401 to stop making water, and a user is prompted on the display board.

When the original water tank 105 is taken away and then put on the base 116, the position sensor 114 receives a signal, the water production time is accumulated (i.e. cleared) before resetting, the accumulated time is restarted, and the system can produce water normally.

Wherein the water purifying device is a water purifying dispenser, a water purifier, a water dispenser or a water purifier and the like.

The above embodiments are merely illustrative of the present invention and are not to be construed as limiting the invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and the technical solution of the present invention is covered by the claims of the present invention.

Claims

1. The utility model provides a water purification unit, includes former water tank and installs concentrated water tank in the former water tank, its characterized in that still includes:

a base provided with a position sensor;

the timing module is in signal connection with the position sensor;

the control module is in signal connection with the timing module;

2. The water purifying apparatus according to claim 1, wherein the base further comprises a water level sensor, a float for detecting a water level is disposed in the raw water tank, a second sensing member is configured in the float for sensing the water level sensor, the float triggers the water level sensor when detecting that the water level in the raw water tank is lower than a set water level, the water level sensor is in signal connection with the control module, and the control module outputs a water stop signal according to a feedback signal of the water level sensor.

3. The water purification device of claim 2, further comprising a water pump and a filter element, wherein the water outlet of the raw water tank is connected to the filter element through a water outlet pipeline, the water pump is arranged on the water outlet pipeline, the filter element is connected to the concentrated water tank through a concentrated water pipeline, and a control valve is arranged on the concentrated water pipeline; the timing module is connected with the water pump, the water pump and the control valve are both connected with the control module, the position sensor senses that the raw water tank is placed on the base to trigger the timing module, the timing module starts to accumulate the water making time of the water pump, and the control module sends a water making stopping signal when the water making time of the water pump reaches a set time length value when the concentrated water is full of water, controls the water pump to stop and controls the control valve to be disconnected.

4. The water purifying apparatus according to claim 3, wherein the float detects that the water level in the raw water tank is lower than a set water level to trigger the water level sensor, and the control module outputs a water stop signal according to a feedback signal of the water level sensor, and controls the water pump to stop and the control valve to be disconnected.

5. The water purifying apparatus according to claim 1 or 2, further comprising a display panel on which the water production stopping signal is displayed.

6. The water purification apparatus of claim 3 or 4, wherein the control module is an electrically controlled board of the water purification apparatus, and the timing module is integrated in the position sensor or in the electrically controlled board or on the water pump.

7. The water purifying apparatus of claim 2, wherein the position sensor and the water level sensor are fixed to the bottom of the base by fasteners, the position sensor is disposed corresponding to the area where the first sensing member is located, and the water level sensor is disposed corresponding to the area where the float is located.

8. The water purification apparatus of claim 2, wherein the first and second sensing members are magnetic members.

9. The water purifying apparatus of claim 2, wherein a float groove is formed at the bottom of the raw water tank, the float is positioned in the float groove, and a float plug defining a float space of the float is arranged at the top of the float groove.

10. The water purification apparatus of claim 1 or 2,

a water inlet pipe is arranged at the bottom of the concentrated water tank, a first end of the water inlet pipe extends into the concentrated water tank, and a second end of the water inlet pipe extends out of the concentrated water tank;

11. The water purifying apparatus of claim 10, wherein an annular groove is formed on the outer surface of the second end of the water inlet pipe, and a first sealing ring is installed in the annular groove and is in interference fit with the inner surface of the water inlet connector.

12. The water purifying apparatus of claim 10, wherein a snap is formed on a sidewall of the concentrated water tank, and a locking groove matched with the snap is formed on the raw water tank.

13. The water purifying apparatus of claim 10, wherein a first stopper is formed on an inner surface of the water inlet port, and a first valve assembly for opening and closing the water inlet port is further installed in the water inlet port; the first valve assembly includes:

the first plug is positioned at the inner side of the first stopping part;

14. The water purification apparatus of claim 10, wherein a drain pipe is connected to a drain opening of the raw water tank, a first end of the drain pipe is located in the raw water tank, a second end of the drain pipe is located outside the raw water tank, a strainer assembly is mounted at the drain pipe, the strainer assembly comprises a cylindrical strainer and a strainer cover, and the cylindrical strainer is mounted at the first end of the drain pipe and extends along the length direction of the drain pipe; the filter screen cover is sleeved outside the cylindrical filter screen, a liquid inlet is formed between the edge of the filter screen cover and the outer wall of the drain pipe, a liquid outlet is formed at the second end of the drain pipe, and the liquid level of the liquid outlet is lower than that of the liquid inlet, so that a siphon channel passing through the cylindrical filter screen is formed between the liquid inlet and the liquid outlet; the bottom plate of the concentrated water tank is abutted against the top of the filter screen cover.

15. The water purifying apparatus of claim 14, wherein the inner surface of the drain pipe is provided with a third stopper, and the drain pipe is provided therein with a second valve assembly for opening and closing the drain opening;

the second valve assembly includes:

a second plug located inside the third stopper;

16. The water purifying apparatus of claim 10, wherein the upper surface of the base is configured with a drain socket and a water inlet socket arranged side by side, the drain socket is sleeved on the outer surface of the second end of the drain pipe, and the water inlet socket is sleeved on the outer surface of the water inlet interface.

17. The water purifying apparatus of claim 16, wherein the second end of the water discharging pipe is sleeved with a water discharging sealing ring, the water discharging seat is sleeved outside the water discharging sealing ring in a sealing manner, the water inlet interface is sleeved with a water inlet sealing ring, and the water inlet seat is sleeved outside the water inlet sealing ring in a sealing manner.

18. The water purification apparatus of claim 1 or 2, wherein the water purification apparatus is a water purifier, a drinking fountain, or a water purifier.