Water purifier

Abstract

The utility model relates to a water purifier which comprises a main machine which comprises a first water path and a second water path, the first pump body is arranged on the first water path; the length of the filter element assembly extends in the first direction; a purified water container; a hot water container; the machine shell is provided with a first containing area and a second containing area which are sequentially distributed in the vertical direction, and the filter element assembly is transversely arranged in the first containing area; the first pump body, the purified water container and the hot water container are separately arranged in the second containing area in the first direction, and the purified water container is constructed to partially surround the first pump body. According to the water purifier disclosed by the utility model, by optimizing the arrangement positions of all parts with relatively large sizes in the water purifier and configuring the water purification container to partially surround the first pump body, the space utilization rate is improved, and the miniaturization design of the whole machine is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, in particular to a water purifier. Background Art

[0002] A water purifier and heat pump combines water purification and heating functions, eliminating the need to boil water after receiving it. Pure hot water is instantly drinkable, making drinking hot water safer, healthier, and more convenient. This category also includes under-the-sink water purifiers, which can be concealed under the kitchen sink for a more aesthetically pleasing installation.

[0003] As the number of scenarios where users use hot water increases, such as making tea, coffee, milk powder, and instant noodles, water purifiers require a larger flow of hot water, which increases the size of the water purifier and is not conducive to use in places with limited space. Utility Model Content

[0004] Based on the above-mentioned defects in the prior art, the purpose of the present invention is to provide a water purifier, which improves space utilization by optimizing the layout positions of the various components with larger internal dimensions of the water purifier and configuring the water purification container to partially surround the first pump body, thereby facilitating the miniaturization design of the entire machine.

[0005] To this end, the present invention provides the following technical solutions.

[0006] The utility model provides a water purifier, which includes a main unit, and the main unit includes:

[0007] A first waterway, whose water inlet is used to connect to a water source;

[0008] a first pump body, which is disposed on the first waterway, and is used to provide power for the water flow in the first waterway;

[0009] a filter element assembly, which is used to purify the water source and has a length extending along a first direction;

[0010] A clean water container, used to store clean water treated by the filter element assembly;

[0011] A hot water container for providing hot water;

[0012] The casing has a first accommodating area and a second accommodating area distributed in sequence in the vertical direction, and the filter element assembly is horizontally arranged in the first accommodating area; the first pump body, the clean water container and the hot water container are separately arranged in the second accommodating area in the first direction, and the clean water container is constructed to partially surround the first pump body.

[0013] Optionally, the first pump body is a booster pump.

[0014] Optionally, the first accommodating area is located below the second accommodating area.

[0015] Optionally, the first pump body and the hot water container are both roughly cylindrical, and the first pump body and the hot water container are both vertically arranged in the second accommodating area.

[0016] Optionally, the first pump body is completely located above the filter element assembly.

[0017] Optionally, the hot water container includes a tank body and a second pump body provided below the tank body, and the second pump body is connected to a first water outlet at the bottom of the tank body;

[0018] The tank body is cylindrical and is completely located above the filter element assembly. The projection of the second pump body in the second direction partially falls on the filter element assembly. The first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0019] Optionally, the purified water container is roughly L-shaped so as to partially surround the first pump body.

[0020] Optionally, a first side wall of the purified water container facing the first pump body is a curved surface, and the first side wall partially surrounds the first pump body.

[0021] Optionally, the first pump body is vertically arranged in the second accommodating area, the first pump body is cylindrical, and the first side wall is matched with the circumferential surface wall of the first pump body.

[0022] Optionally, the first pump body includes a first motor accommodating cylinder and a pump head, and the projection of the first motor accommodating cylinder in the first direction a completely falls on the water purification container.

[0023] Optionally, the first pump body includes a first motor accommodating cylinder and a pump head, the total projection area of ​​the first motor accommodating cylinder in the second direction is S1, the projection area of ​​the first motor accommodating cylinder on the water purification container in the second direction is S2, and S2 is greater than half of S1; the first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0024] Optionally, the clean water container partially surrounds the filter element assembly.

[0025] Optionally, the projection of the filter element assembly in the second direction partially falls on the water purification container; the first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0026] Optionally, the volume of the hot water container is 1.1-1.6 times the volume of the clean water container.

[0027] Optionally, the volume of the hot water container is 1.4-1.6L, and the volume of the clean water container is 1.8-2.2L.

[0028] Optionally, the first pump body, the clean water container and the hot water container are arranged in sequence along the first direction a.

[0029] Optionally, the host further includes:

[0030] A heating element for heating the purified water;

[0031] The heating element is vertically arranged in the second accommodating area and is located on the side of the hot water container away from the purified water container. The projection of the heating element in the second direction partially falls on the hot water container; the first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0032] Optionally, the main unit further includes: a second water channel, one end of which is connected to the first water inlet of the hot water container, and the other end of which is connected to the water outlet of the heating element.

[0033] Optionally, the main unit includes an integrated water channel component, which has a plurality of flow channels therein, and the integrated water channel component is used to sequentially connect at least part of the water channels in the main unit;

[0034] The integrated water channel component is located on a side of the first pump body away from the water purification container. The integrated water channel component is vertically arranged and its width extends along the second direction; the first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0035] Optionally, the housing includes:

[0036] An outer shell, which is used to form the outer contour structure of the host;

[0037] An inner shell is connected to the outer shell; the inner shell is provided with a connected filter cartridge seat and a frame, the filter cartridge seat is provided with a first accommodating cavity, the first accommodating cavity constitutes the first accommodating area, and the second accommodating area is located in the frame and above the filter cartridge seat.

[0038] Optionally, the front side plate of the inner shell is located on a side of the hot water container facing away from the clean water container;

[0039] The inner housing is provided with a second accommodating chamber and a third accommodating chamber, a fourth accommodating chamber is formed between the outer wall of the second accommodating chamber, the outer wall of the third accommodating chamber and the outer wall of the filter element seat, and a fifth accommodating chamber is formed between the outer wall of the third accommodating chamber and the inner wall of the front side plate;

[0040] The second accommodating chamber, the third accommodating chamber, the fourth accommodating chamber and the fifth accommodating chamber together constitute the second accommodating area;

[0041] The first pump body is arranged in the second accommodating chamber, the hot water container is arranged in the third accommodating chamber, the purified water container is arranged in the fourth accommodating chamber, and the heating element of the host is arranged in the fifth accommodating chamber.

[0042] Optionally, the cavity wall of the second accommodating cavity matches the shape of the outer wall of the first pump body, the cavity wall of the third accommodating cavity matches the shape of the outer wall of the hot water container, and the cavity wall of the fourth accommodating cavity matches the shape of the outer wall of the purified water container.

[0043] Optionally, the filter element assembly includes a first filter element, a second filter element, and a third filter element arranged parallel to each other, the first filter element and the third filter element are distributed sequentially along the second direction, and the second filter element is located above the first filter element and the third filter element;

[0044] The lowest point of the second filter element is located in the space formed by the first filter element and the third filter element relative to each other in the second direction, and the lowest point is higher than the axis of the first filter element and the axis of the third filter element;

[0045] The first direction and the second direction are perpendicular to each other and parallel to a horizontal plane.

[0046] Optionally, the first filter element, the second filter element and the third filter element are arranged in an isosceles triangle.

[0047] Optionally, the first filter element and the third filter element have the same diameter and are both smaller than the diameter of the second filter element.

[0048] Optionally, the axial distance between the first filter element and the third filter element is smaller than the diameter of the second filter element.

[0049] Optionally, the first accommodating area includes:

[0050] A first filter element accommodating chamber, used for accommodating the first filter element;

[0051] A second filter element accommodating chamber, used for accommodating the second filter element;

[0052] A third filter element accommodating chamber, used for accommodating the third filter element;

[0053] The walls of the first filter element accommodating chamber, the second filter element accommodating chamber and the third filter element accommodating chamber are connected end to end in sequence to form the first accommodating area.

[0054] Optionally, the cavity wall of the first filter element accommodating cavity matches the circumferential surface wall of the first filter element in shape, and the first filter element accommodating cavity surrounds more than half of the circumference of the first filter element;

[0055] The cavity wall of the second filter element accommodating cavity matches the circumferential surface wall of the second filter element in shape, and the second filter element accommodating cavity surrounds more than half of the circumference of the second filter element;

[0056] The cavity wall of the third filter element accommodating cavity matches the circumferential surface wall of the third filter element in shape, and the third filter element accommodating cavity surrounds more than half of the circumference of the third filter element.

[0057] Optionally, the outer wall and inner wall of the filter element seat have substantially the same contour.

[0058] Optionally, the front side plate of the inner shell is located on a side of the hot water container facing away from the clean water container;

[0059] The front side plate is provided with three openings, and the three openings are connected to the first filter element accommodating chamber, the second filter element accommodating chamber and the third filter element accommodating chamber respectively; the first filter element, the second filter element and the third filter element are assembled through the corresponding openings respectively.

[0060] Optionally, the main unit includes an integrated water channel component, which has a plurality of flow channels therein, and the integrated water channel component is used to connect the water channels in the main unit in sequence;

[0061] The integrated water channel component is located on a side of the first pump body away from the water purification container, and the integrated water channel component is provided with three first slots, each of which is provided with a first matching valve;

[0062] The head end of each filter element of the filter element assembly is respectively clamped in the corresponding opening and the tail end is respectively clamped in the corresponding first clamping groove, and the second matching valve of each filter element is plugged and matched with the corresponding first matching valve.

[0063] Optionally, each filter element of the filter element assembly is configured with a matching locking assembly and unlocking member, the locking assembly is used to lock the corresponding filter element to the inner shell; the unlocking member is used to unlock the locking assembly to disassemble and assemble the corresponding filter element.

[0064] Optionally, the unlocking member is movably connected to the corresponding filter element, and the locking assembly includes:

[0065] a locking member movably connected to the front side plate, the locking member having a locking position and an unlocking position;

[0066] an elastic member applying an elastic force to the locking member so as to keep the locking member in a locked position;

[0067] Wherein, when the locking member is located in the locking position, the locking member can restrict the extraction of the corresponding filter element to achieve locking; when the locking member is located in the unlocking position, the locking member releases the restriction;

[0068] The unlocking member can move under an external force to drive the locking member to overcome the elastic force, so that the locking member moves to the unlocking position.

[0069] Optionally, when the locking member is located in the locking position, the locking member is at least partially located on the extraction path of the corresponding filter element to achieve locking; when the locking member is located in the unlocking position, the locking member leaves the extraction path.

[0070] Optionally, the locking member is a lock buckle, and the locking assembly further comprises a buckle groove provided on the corresponding filter element;

[0071] When the locking member is located at the locking position, the locking member is buckled in the buckle slot; when the locking member is located at the unlocking position, the locking member is disengaged from the buckle slot.

[0072] Optionally, the locking member is mounted on a side of the front side plate facing away from the hot water container via a pivot shaft, and the locking member rotates around the pivot shaft to switch between the locking position and the unlocking position.

[0073] Optionally, each filter element is provided with a filter element end cover, and the filter element end cover is provided with a first groove; the unlocking member includes a handle portion and a first mounting portion, and the first mounting portion is rotatably connected to the first groove;

[0074] The first mounting portion is provided with a buckling surface, and the buckling surface and the groove wall of the first groove form the buckling groove.

[0075] Optionally, the locking element includes a locking protrusion, and the locking protrusion is buckled on the buckling surface;

[0076] The first mounting portion is provided with a pushing surface. When the unlocking member rotates under an external force and the buckling surface is separated from the locking protrusion, the pushing surface pushes the locking protrusion to make the locking member leave the locking position.

[0077] Optionally, two locking elements are arranged on both radial sides of each filter element.

[0078] Optionally, the two locking elements located between the first filter element and the third filter element are pivotally connected to the same pivot axis.

[0079] Optionally, the hot water container includes:

[0080] a tank body, which is provided with a water storage cavity and a first water outlet connected to the bottom of the water storage cavity;

[0081] The second pump body is arranged horizontally below the tank body, and includes a second water outlet, a pump chamber and a second water inlet which are connected in sequence; the second water inlet is connected to the first water outlet, and the second water outlet is located at the top of the pump chamber.

[0082] Optionally, the second pump body includes a water outlet pipe, which together with the communication port of the pump chamber constitutes the second water outlet; the water outlet pipe is inclined upward from the second water outlet.

[0083] Optionally, the angle between the water outlet pipe and the horizontal plane is 5°-20°.

[0084] Optionally, the second pump body includes a front end cover and a second motor accommodating cylinder, and the second water outlet and the second water inlet are arranged on the front end cover.

[0085] Optionally, a plurality of first protrusions are provided on the outer periphery of the front end cover, and a plurality of second protrusions are provided on the outer periphery of the second motor accommodating cylinder, wherein the first protrusions and the second protrusions are provided in a one-to-one correspondence and connected by fasteners;

[0086] The second pump body includes a water outlet pipe, which and the communication port of the pump chamber form the second water outlet;

[0087] The second water outlet is located below the first raised portion at the highest point, and the water outlet pipe does not protrude from the first raised portion.

[0088] Optionally, the second pump body is provided with a retaining rib, which is provided at the second water inlet; the retaining rib achieves water vapor separation by breaking up the hot water flow entering the second water inlet.

[0089] Optionally, the hot water container includes a pump fixing bracket, and the second pump body is installed on the bottom of the tank body through the pump fixing bracket.

[0090] Optionally, the pump fixing frame includes a support frame and a transfer pipe, the second pump body is arranged on the support frame, and both ends of the transfer pipe are respectively connected to the first water outlet and the second water inlet.

[0091] Optionally, the second pump body includes a water inlet pipe, the water inlet pipe is plugged into one end of the transfer pipe, and a first sealing member is provided at the assembly point of the two;

[0092] The other end of the transfer pipe is plugged into the first water outlet and a second sealing member is provided at the assembly point of the two.

[0093] Optionally, the support frame is an open structure, which half surrounds the second pump body.

[0094] Optionally, a shock absorbing component is provided on the outer periphery of the second pump body.

[0095] Optionally, the second pump body is located at the bottom of the tank body and is arranged close to one side of the tank body, so that the projection of the second pump body in the second direction partially falls on the filter element assembly;

[0096] The first direction and the second direction are perpendicular to each other and parallel to a horizontal plane.

[0097] Optionally, the second pump body is an impeller pump.

[0098] Optionally, the tank body is provided with a heat-insulating structure, and the heat-insulating structure circumferentially surrounds the water storage cavity.

[0099] Optionally, the tank body is a double-layer vacuum structure, and the double-layer vacuum structure constitutes the heat-insulating structure.

[0100] Optionally, a liquid level detection mechanism is provided in the tank body to obtain liquid level information of the water storage chamber.

[0101] Optionally, the liquid level detection mechanism includes:

[0102] an upper float, located in the water storage chamber and capable of floating up and down between a first position and a second position;

[0103] a lower float, located in the water storage chamber and below the upper float, capable of floating up and down between a third position and a fourth position;

[0104] The liquid level sensor obtains the liquid level information of the water storage chamber by obtaining the position information of the upper float and the lower float in the up and down directions.

[0105] Optionally, a mounting post is provided in the tank body, which is parallel to the axis of the tank body; the upper float and the lower float are movably mounted on the mounting post respectively;

[0106] The outer periphery of the mounting column has four limiting members, and the first position, the second position, the third position and the fourth position are respectively defined by the four limiting members.

[0107] Optionally, the mounting column has a hollow portion, and the liquid level sensor is mounted in the hollow portion.

[0108] Optionally, a temperature sensor is provided in the tank body to obtain water temperature information in the water storage cavity.

[0109] Optionally, the water purifier further includes a purified water distributor, which is located outside the main unit and is used to distribute water to the outside; the main unit includes a water channel assembly, and the water channel assembly includes:

[0110] a hot water supply water channel, the two ends of which are respectively connected to the purified water distributor and the hot water container, and the hot water in the hot water container flows into the purified water distributor through the hot water supply water channel and is distributed through the purified water distributor;

[0111] a reflux water channel, the two ends of which are respectively connected to the purified water distributor and the hot water container;

[0112] When the reflux waterway is opened, at least part of the water in the purified water distributor flows back into the hot water container through the reflux waterway.

[0113] Optionally, the water channel assembly includes a first valve, which is provided on the return water channel, and the first valve is used to block or open the return water channel.

[0114] Optionally, the water purifier includes a second pump body, which is arranged on the hot water supply water path and is used to pump water out of the hot water container.

[0115] Optionally, the purified water dispenser includes a liquid buffer chamber and a dispensing head that are connected to each other, and the liquid buffer chamber is used to temporarily store liquid;

[0116] The hot water supply waterway is communicated with the liquid buffer cavity, and the hot water in the hot water supply waterway flows into the distribution head via the liquid buffer cavity.

[0117] Optionally, the reflux waterway is connected to the liquid buffer chamber;

[0118] Before the purified water dispenser distributes water, the hot water container, the hot water supply waterway, the liquid buffer chamber and the return waterway are connected in sequence to form a preheating circulation waterway; under the power provided by the second pump body, a preheated water circulation is formed in the preheating circulation waterway.

[0119] Optionally, when the opening condition of the reflux waterway is met, the reflux waterway is opened, and the water in the liquid buffer chamber flows back into the hot water container through the reflux waterway; the opening condition includes: the preheating water circulation starts;

[0120] When the closing condition of the return water channel is reached, the return water channel is blocked; the closing condition includes: the preheated water circulation is completed.

[0121] Optionally, when the purified water dispenser dispenses water, the return water path is blocked;

[0122] When the purified water dispenser stops dispensing hot water, the reflux waterway is opened, and the water in the liquid buffer chamber flows back into the hot water container through the reflux waterway.

[0123] Optionally, the liquid cache chamber, the return waterway and the hot water container are arranged in sequence from top to bottom.

[0124] Optionally, the dispensing head includes a trigger element and a water dispensing switch;

[0125] When the trigger element is operated and the water intake switch is in an unopened state, the second pump body operates to start the preheated water circulation.

[0126] Optionally, the dispensing head comprises a temperature selection operating member, and the temperature selection operating member constitutes the triggering element.

[0127] Optionally, the preheating water cycle is configured to be executed for 3-5 seconds so that the temperature of the hot water in the hot water supply water path reaches a preset temperature value.

[0128] Optionally, the temperature selection operating element and the water intake switch are touch buttons or mechanical buttons or knobs.

[0129] Optionally, the upper surface of the dispensing head is a touch screen, and the touch screen includes an indicator light;

[0130] When the touch screen is in an initial state, the indicator light is half lit; when the touch screen is touched, the indicator light is fully lit.

[0131] Optionally, the liquid cache cavity includes a first communication port, a second communication port, and a third communication port; the first communication port and the second communication port are located below the third communication port;

[0132] The hot water supply water channel is connected to the first communication port, and the return water channel is connected to the second communication port; one end of the distribution head is provided with a distribution port, and the other end thereof is connected to the third communication port.

[0133] Optionally, the liquid cache chamber also includes a fourth connecting port, the main unit includes a first waterway and a filter element assembly, and the filter element assembly is arranged on the first waterway; the water inlet of the first waterway is used to access a water source, and its water outlet is connected to the fourth connecting port.

[0134] Optionally, the purified water distributor includes a water return structure, the interior of which is a hollow structure to form the liquid cache cavity.

[0135] Optionally, the purified water distributor further includes a mixing water chamber and a normal temperature water chamber, wherein the normal temperature water chamber and the liquid buffer chamber are not connected to each other; the third communication port, the mixing water chamber, and the distribution head are connected in sequence, and the hot water in the hot water supply waterway enters the mixing water chamber through the liquid buffer chamber and is distributed to the outside through the distribution head;

[0136] The normal temperature water chamber includes a fifth communicating port and a sixth communicating port. The sixth communicating port is connected to the mixing water chamber. The fifth communicating port is connected to the water outlet end of the first water channel. The normal temperature water purified in the first water channel can enter the mixing water chamber through the normal temperature water chamber.

[0137] Optionally, the purified water distributor includes a water return structure, which is integrally formed with the water mixing chamber, the liquid buffer chamber and the normal temperature water chamber.

[0138] Optionally, the distribution port, the water mixing chamber, the liquid buffer chamber, the return waterway and the hot water container are arranged in sequence from top to bottom.

[0139] Optionally, the water purifier includes a heating element, which is arranged on the hot water supply waterway; the second pump body is located on the waterway between the hot water container and the heating element.

[0140] Optionally, the waterway assembly includes:

[0141] a second water channel, the water outlet of which is connected to the hot water container;

[0142] a second valve, wherein a first water outlet end thereof is connected to the first hot water pipe of the hot water supply water path, a second water outlet end thereof is connected to the second water path, and a water inlet end thereof is connected to the heating element; the first hot water pipe is connected to the liquid buffer chamber;

[0143] Among them, when the water temperature in the hot water container does not reach the preset value and the water purifier is not turned on to take water, the first water outlet end is in a closed state, the second water outlet end is in an open state, the heating element and the second pump body are turned on, and the water in the hot water container is heated by the heating element and circulated into the hot water container through the second water circuit, forming a heating circulation water circuit, so that the water temperature in the hot water container reaches the preset value.

[0144] Optionally, the filter element assembly is arranged on the first water channel, and the water outlet end of the first water channel is connected to the purified water distributor to supply purified water at room temperature.

[0145] Optionally, the water outlet end of the first water channel is connected to the fourth communication port of the liquid buffer chamber;

[0146] When T m=T1, the water in the hot water container flows into the distribution head through the hot water supply channel and the liquid buffer chamber in sequence;

[0147] When T m =T2, the water in the first water channel flows into the distribution head through the liquid buffer chamber;

[0148] When T2<T m When T1 is less than 1, the water flow in the hot water container and the water flow in the first water channel are mixed in the liquid buffer chamber to obtain a temperature of T m The water flows into the distribution head;

[0149] When T m >At T1, the water in the hot water container is heated by the heating element and then flows into the distribution head through the liquid buffer chamber;

[0150] The preset temperature value in the hot water container is T1, the temperature of the normal temperature water provided by the first water channel is T2, and the target temperature of the water is T m .

[0151] Optionally, the T1 is 82-88°C.

[0152] Optionally, a first check valve is provided at the connection point between the water outlet end of the first water channel and the liquid cache chamber, and the first check valve is used to prevent the water flow in the liquid cache chamber from entering the first water channel.

[0153] Optionally, the purified water distributor also includes a return water structure and a mixing water chamber, and the return water structure is provided with a normal temperature water chamber and the liquid cache chamber that are not connected to each other; the water outlet end of the normal temperature water chamber and the water outlet end of the liquid cache chamber are respectively connected to the mixing water chamber, and the water outlet end of the first water channel is connected to the water inlet end of the normal temperature water chamber.

[0154] Optionally,

[0155] When T m =T1, the water in the hot water container flows through the hot water supply channel, the liquid buffer chamber and the water mixing chamber in sequence and then flows into the distribution head;

[0156] When T m =T2, the water in the first water channel flows through the normal temperature water chamber and the mixing water chamber in sequence and then flows into the distribution head;

[0157] When T2<T m When T1 is less than 1, the water in the hot water container and the water in the first water channel are mixed in the mixing chamber to obtain a temperature of T m The water flows into the distribution head;

[0158] When T m >At T1, the water in the hot water container is heated by the heating element and then flows into the distribution head through the liquid buffer chamber;

[0159] The preset temperature value in the hot water container is T1, the temperature of the normal temperature water provided by the first water channel is T2, and the target temperature of the water is T m .

[0160] Optionally, a third check valve is provided at the connection point between the normal temperature water chamber and the first water channel, and the third check valve is used to prevent water in the purified water dispenser from entering the first water channel.

[0161] Optionally, the third check valve is located in the water inlet end of the normal temperature water chamber.

[0162] Optionally, a fourth check valve is provided at the connection between the liquid cache chamber and the mixing water chamber; the fourth check valve is used to prevent water in the mixing water chamber from entering the liquid cache chamber, and to prevent hot water in the liquid cache chamber from flowing to the distribution head when a preheating water circulation is formed in the preheating circulation water circuit.

[0163] Optionally, the fourth check valve is located in the water outlet end of the liquid cache chamber.

[0164] Optionally, the T1 is 82-88°C.

[0165] Optionally, the water inlet of the water purification container is connected to the first water channel, and the water outlet thereof is connected to the hot water supply water channel through a third water channel, and a third pump body is provided on the third water channel;

[0166] When the liquid level in the purified water container is lower than a preset purified water level value and the water purifier is not turned on to draw water, the first pump body operates so that the water in the first water path flows into the purified water container after being purified by the filter element assembly to replenish purified water;

[0167] When the liquid level in the hot water container is lower than the preset hot water level value and the water purifier is not turned on to take water, the third pump body operates to allow the water in the purified water container to flow into the hot water supply water path, and after being heated by the heating element, flows into the hot water container to replenish hot water.

[0168] Optionally, the third water circuit is connected to the hot water supply circuit through a third valve.

[0169] Optionally, the third pump body is a diaphragm pump.

[0170] Optionally, the hot water container is provided with a first exhaust pipe, and the air outlet of the first exhaust pipe is connected to the second exhaust pipe provided with the purified water dispenser.

[0171] Optionally, the water purification container is provided with a third exhaust pipe, and the air outlet of the third exhaust pipe is connected to the first exhaust pipe.

[0172] Optionally, the hot water supply water channel is a Teflon tube.

[0173] Optionally, the filter element assembly includes a first filter element, a second filter element, and a third filter element sequentially arranged along the water flow direction of the first water channel, the first filter element and the second filter element are used to filter and purify the water flow, and the third filter element is used to inhibit microorganisms and / or improve taste;

[0174] The water channel assembly includes a first wastewater water channel, a water inlet end of which is connected to the water channel between the second filter element and the third filter element, and the first wastewater water channel is used to discharge wastewater discharged from the second filter element.

[0175] Optionally, the water channel assembly includes a second wastewater water channel, a water inlet end of which is connected to the downstream of the third filter element, and the second wastewater water channel is used to discharge wastewater generated when cleaning the filter element assembly.

[0176] Optionally, the water purifier further includes a purified water dispenser, which is located outside the main unit and is used to distribute water to the outside, and includes:

[0177] a distribution port for discharging water;

[0178] a water outlet channel, the two ends of which are respectively connected to the distribution port and the water supply port of the water channel assembly of the main unit, and the water outlet channel comprises a first bottom wall and a second bottom wall;

[0179] a first water retaining structure, which is provided on the bottom wall of the water outlet channel;

[0180] The second bottom wall, the first water retaining structure and the first bottom wall are sequentially distributed along the water flow direction; the first bottom wall is inclined downward in the direction toward the distribution port, and the second bottom wall is inclined downward in the direction away from the distribution port.

[0181] Optionally, the second bottom wall, the first water retaining structure and the first bottom wall are connected in sequence.

[0182] Optionally, the second bottom wall is higher than the first bottom wall.

[0183] Optionally, the bottom wall of the water outlet channel bulges upward to form the first water retaining structure.

[0184] Optionally, the purified water distributor includes an air retaining structure and a second water retaining structure, wherein the air retaining structure is provided on the top wall of the water outlet channel and is located between the distribution port and the first water retaining structure; the second water retaining structure is located at the distribution port;

[0185] The height h1 of the top wall of the first water retaining structure is higher than the height h2 of the bottom wall of the air retaining structure, and the height h1 is configured to enable the first water retaining structure to partially block the backflow of water in the water outlet channel, so as to form pre-stored water of a preset liquid level h3 between the first water retaining structure and the second water retaining structure;

[0186] Among them, h2<h3

[0187] Optionally, the outer wall of the distribution port constitutes the second water retaining structure.

[0188] Optionally, the top wall of the water outlet channel bulges downward to form the air blocking structure.

[0189] Optionally, the water outlet channel includes a horizontal channel and a vertical channel that are connected to each other, the distribution port is connected to the horizontal channel, and the liquid buffer cavity is connected to the vertical channel;

[0190] The first water retaining structure is located in the transverse channel; the purified water dispenser includes a temperature controller, a detection end of which is located in the vertical channel, and the lowest point of the detection end is located above the liquid buffer cavity and lower than the top wall of the first water retaining structure;

[0191] During the preheated water circulation process, when the thermostat obtains temperature information, the second pump body is closed to stop the preheated water circulation, and the water in the liquid buffer chamber flows back to the hot water container through the reflux water path.

[0192] Optionally, when the preheating water circulation stops and the thermostat does not obtain temperature information, the second pump body is turned on to resume the preheating water circulation.

[0193] Optionally, when the preheated water circulation is stopped for a preset time, the second pump body is turned on to resume the preheated water circulation.

[0194] Optionally, the purified water dispenser includes an ultraviolet sterilization element, which is located in the water outlet channel and arranged near the dispensing port.

[0195] Optionally, the purified water distributor comprises a distribution head and a water return structure, the water outlet channel and the distribution port are located in the distribution head, and the water return structure is formed with the liquid buffer cavity; ​

[0196] The distribution head is roughly L-shaped, and a second mounting portion is provided at one end of the distribution head away from the distribution port; the second mounting portion is plugged into the water return structure, and a third sealing member is provided at the assembly point of the two.

[0197] Optionally, the purified water distributor includes a water return structure, the interior of which is a hollow structure to form the liquid cache cavity.

[0198] Optionally, the dispensing port comprises:

[0199] a first distribution pipe, whose height h4 is higher than the height of the first water retaining structure and which has a first water distribution inlet;

[0200] The second distribution pipe has a height h5 higher than h4;

[0201] a plug, which is inserted into a portion of the inlet of the second distribution pipe, and the assembly of the two forms a steam exhaust gap, and the plug separates the inlet of the second distribution pipe into a second water distribution inlet and a steam exhaust gap;

[0202] The water level in the water outlet channel is h6. When h4<h6≤h5, the water in the water outlet channel enters the distribution port through the first water distribution inlet, and the water vapor in the water outlet channel enters the distribution port through the second water distribution inlet and is then discharged;

[0203] When h6>h5, water in the water outlet channel enters the distribution port through the first water distribution inlet and the second water distribution inlet, and water vapor in the water outlet channel enters the distribution port through the steam exhaust gap and is then discharged.

[0204] Optionally, the distribution port includes an outlet channel, and the outlets of the first distribution pipe and the second distribution pipe are respectively connected to the outlet channels, and the purified water is distributed outward through the outlet channels.

[0205] Optionally, the purified water dispenser includes a second exhaust pipe located in a distribution head of the purified water dispenser, and an air outlet of the second exhaust pipe opens downward.

[0206] Optionally, the upper surface of the distribution head of the water purification dispenser is a touch screen, the touch screen is provided with a temperature selection operating element, and the distribution head includes a water intake switch in a knob structure, and the water intake switch is located above the touch screen.

[0207] Optionally, the main unit includes an integrated water channel component, and the integrated water channel component includes: a plurality of water inlets, including a raw water inlet, a first filter element inlet, a first filter element outlet, a first pump body inlet, a first pump body outlet, a second filter element inlet, a second filter element outlet, a second filter element wastewater outlet, a third filter element inlet, a third filter element outlet, a first clean water outlet, a second clean water outlet, and a wastewater outlet;

[0208] a plurality of flow channels, including a first flow channel connecting the raw water inlet and the first filter cartridge inlet, a second flow channel connecting the first filter cartridge outlet and the first pump body inlet, a third flow channel connecting the first pump body outlet and the second filter cartridge inlet, a fourth flow channel connecting the second filter cartridge outlet and the third filter cartridge inlet, a fifth flow channel connecting the third filter cartridge outlet and the first clean water outlet, a sixth flow channel connecting the third filter cartridge outlet and the second clean water outlet, a seventh flow channel connecting the second filter cartridge wastewater outlet and the wastewater outlet, and an eighth flow channel connecting the third filter cartridge outlet and the wastewater outlet;

[0209] The raw water inlet is used to access external tap water, the first purified water outlet is connected to the purified water distributor of the water purifier, and the second purified water outlet is connected to the purified water container.

[0210] Optionally, the raw water inlet, the first clean water outlet, the second clean water outlet and the waste water outlet are located at the upper part of the integrated water channel component.

[0211] Optionally, the raw water inlet, the waste water outlet, the second clean water outlet and the first clean water outlet are arranged in sequence along the width direction of the integrated water channel component.

[0212] Optionally, the filter element assembly includes a first filter element, a second filter element, and a third filter element sequentially arranged along the water flow direction of the first water channel, the first filter element and the second filter element are used to filter and purify the water flow, and the third filter element is used to inhibit microorganisms and / or improve taste;

[0213] The first filter element inlet and the first filter element outlet are respectively communicated with the first filter element, the second filter element inlet, the second filter element outlet and the second filter element wastewater outlet are respectively communicated with the second filter element, and the third filter element inlet and the third filter element outlet are respectively communicated with the third filter element;

[0214] The first filter element inlet, the first filter element outlet, the third filter element inlet and the third filter element outlet are located at the lower part of the integrated water channel component, and the second filter element inlet, the second filter element outlet and the second filter element wastewater outlet are located in the middle part of the integrated water channel component.

[0215] Optionally, the first filter element inlet, the first filter element outlet, the third filter element inlet and the third filter element outlet are arranged in sequence along the width direction of the integrated water channel component, and the second filter element inlet, the second filter element outlet and the second filter element wastewater outlet are arranged in sequence along the width direction of the integrated water channel component.

[0216] Optionally, the first flow channel is arranged close to a vertical side wall of the integrated water channel component, and the first flow channel and the second flow channel both extend vertically and are arranged adjacent to each other.

[0217] Optionally, the third flow channel is U-shaped, the fourth flow channel is L-shaped, and the third flow channel surrounds the fourth flow channel; the first flow channel, the second flow channel and the third flow channel are arranged in sequence along the width direction of the integrated water channel component.

[0218] Optionally, the fifth flow channel extends vertically, with one end of the fifth flow channel inserted downward into the U-shaped area formed by the third flow channel, and the other end extending upward.

[0219] Optionally, a first valve interface is provided on the fifth flow channel, and the first valve interface is used to install a fourth valve, and the fourth valve is used to control the opening and closing of the fifth flow channel.

[0220] Optionally, the sixth flow channel is located on one side of the upper portion of the fifth flow channel and extends vertically;

[0221] The integrated water channel component includes a second valve interface, the second valve interface is used to install a fifth valve, and the fifth valve is used to control the on-off of the sixth flow channel.

[0222] Optionally, the seventh flow channel extends vertically, and the seventh flow channel, the sixth flow channel and the fifth flow channel are arranged in sequence along the width direction of the integrated water channel component.

[0223] Optionally, the eighth flow channel partially overlaps with the seventh flow channel.

[0224] Optionally, a third valve interface is provided on the eighth flow channel, and the third valve interface is used to install a sixth valve, and the sixth valve is used to control the on-off of the eighth flow channel.

[0225] Optionally, a fourth valve interface is provided on the seventh flow channel, and the fourth valve interface is used to install a seventh valve, and the seventh valve is used to control the opening and closing of the seventh flow channel.

[0226] Optionally, a fifth valve interface is provided on the first flow channel, and the fifth valve interface is used to install an eighth valve, and the eighth valve is used to control the opening and closing of the first flow channel.

[0227] Optionally, the integrated water channel component includes a check valve interface, the check valve interface is used to install a second check valve, and the second check valve is used to prevent the wastewater in the eighth flow channel from flowing back.

[0228] Optionally, the integrated water channel component includes:

[0229] a first TDS sensor interface, which is in communication with the second flow channel;

[0230] an NTC sensor interface, which is in communication with the fourth flow channel;

[0231] a second TDS sensor interface, which is in communication with the fourth flow channel;

[0232] The flow meter interface is located downstream of the outlet of the third filter element.

[0233] Optionally, the cross-sectional area of ​​the flow channel is greater than or equal to 40 mm 2 .

[0234] Optionally, the integrated water channel component includes a first plate body and a second plate body, and the first plate body and the second plate body are welded to form the plurality of flow channels together.

[0235] The utility model has the following technical effects:

[0236] The present utility model provides a water purifier that optimizes the placement of various components with larger internal dimensions. The filter element assembly is disposed transversely within a first accommodating area. Simultaneously, a first pump body, a purified water container, and a hot water container are separately disposed in a first direction within a second accommodating area. This improves space utilization and facilitates a compact design of the entire machine. Furthermore, the purified water container is configured to partially surround the first pump body, effectively utilizing the free space between the first pump body and the housing in the second direction. This allows for a more compact arrangement of the purified water container and the first pump body, while also ensuring that the purified water container has sufficient water storage capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0237] Figure 1 This is a structural sectional view of the host of the present utility model;

[0238] Figure 2 This is a partial structural sectional view of the host of the present utility model;

[0239] Figure 3 This is a schematic diagram of the three-dimensional structure of the inner shell of the utility model Figure 1 ;

[0240] Figure 4 This is a schematic diagram of the three-dimensional structure of the inner shell of the utility model Figure 2 ;

[0241] Figure 5This is a schematic diagram of the assembly structure of the first pump body, water purification ventilation, hot water container, heating element and filter element assembly of the utility model Figure 1 ;

[0242] Figure 6 This is a schematic diagram of the assembly structure of the first pump body, water purification ventilation, hot water container, heating element and filter element assembly of the utility model Figure 2 ;

[0243] Figure 7 This is a schematic diagram of a partial three-dimensional structure of the host of the present utility model;

[0244] Figure 8 for Figure 7 Enlarged view of point A in the middle;

[0245] Figure 9 Exploded diagram of the assembly structure of the locking component, unlocking component and filter cover of the utility model Figure 1 ;

[0246] Figure 10 Exploded diagram of the assembly structure of the locking component, unlocking component and filter cover of the utility model Figure 2

[0247] Figure 11 This is a schematic diagram of the assembly structure of two locking members located between the first filter element and the third filter element and the same pivot shaft of the present invention;

[0248] Figure 12 This is an exploded view of the assembly structure of two locking members and the same pivot shaft located between the first filter element and the third filter element of the present invention;

[0249] Figure 13 This is a front view of the partial structure of the host of the present utility model;

[0250] Figure 14 This is a cross-sectional view of the structure of the hot water container of the present utility model;

[0251] Figure 15 for Figure 14 Enlarged view of point B in the middle;

[0252] Figure 16 This is an exploded view of the assembly structure of the second pump body, pump fixing bracket, second sealing member and shock absorbing member of the present invention;

[0253] Figure 17 This is a front view of the second pump body of the present utility model;

[0254] Figure 18 This is a schematic diagram of the connection relationship between the water channel assembly and the purified water distributor in the first embodiment of the present utility model;

[0255] Figure 19This is a partial structural cross-sectional view of the water purification dispenser in the first embodiment of the present utility model. Figure 1 ;

[0256] Figure 20 This is a partial structural cross-sectional view of the water purification dispenser in the first embodiment of the present utility model. Figure 2 ;

[0257] Figure 21 This is a partially enlarged cross-sectional view of the structure of the water purification distributor of the present utility model;

[0258] Figure 22 This is a schematic diagram of the three-dimensional structure of the water return structure in the first embodiment of the present utility model;

[0259] Figure 23 This is an exploded view of the assembly structure of the inner core body and the inner core cover of the utility model;

[0260] Figure 24 This is an exploded view of the structure of the integrated water channel component of the utility model;

[0261] Figure 25 It is a rear view of the first plate body of the utility model;

[0262] Figure 26 It is a front view of the second plate body of the utility model;

[0263] Figure 27 This is a schematic diagram of the three-dimensional structure of the second plate body of the present invention;

[0264] Figure 28 It is a rear view of the second plate body of the utility model;

[0265] Figure 29 This is an exploded diagram of the structure of the water purifier of the present utility model;

[0266] Figure 30 This is a schematic diagram of the three-dimensional structure of the water purifier of the utility model

[0267] Figure 31 This is a schematic diagram of the connection relationship between the water channel assembly and the purified water distributor in the second embodiment of the present utility model;

[0268] Figure 32 This is a schematic diagram of the three-dimensional structure of the water return structure in the second embodiment of the present utility model;

[0269] Figure 33 This is a cross-sectional view of the water return structure in the second embodiment of the present invention. Figure 1 ;

[0270] Figure 34 This is a cross-sectional view of the water return structure in the second embodiment of the present invention. Figure 2 .

[0271] Description of Reference Numerals

[0272] 1000, water purifier;

[0273] 100. Main unit; 1. Waterway assembly; 11. First waterway; 12. Hot water supply waterway; 121. First hot water pipe; 122. Second hot water pipe; 13. Return waterway; 141. First valve; 142. Second valve; 143. Third valve; 144. Fourth valve; 145. Fifth valve; 146. Sixth valve; 147. Seventh valve; 148. Eighth valve; 15. Second waterway; 16. Third waterway; 171. First check valve; 172. Second check valve; 173. Third check valve; 174. Fourth check valve; 175. Fifth check valve; 181. First wastewater waterway; 182. Second wastewater waterway; 21. First pump body; 211. First motor housing; 212. Pump head; 22 , third pump body; 3, filter element assembly; 31, first filter element; 32, second filter element; 33, third filter element; 34, locking assembly; 341, locking member; 3411, locking protrusion; 3412, pivot arm; 342, elastic member; 343, buckle groove; 344, pivot shaft; 35, unlocking member; 351, handle; 352, first mounting portion; 3521, buckle surface; 3522, push surface; 3523, shaft hole; 36, filter element end cap; 361, first groove; 362, mounting shaft; 41, clean water container; 411, first side wall; 412, third exhaust pipe; 413, extension section; 42, hot water container; 421, tank body; 4211, first water outlet; 4212, first water inlet; 4213, storage Water cavity; 4214, insulation structure; 42141, outer tank body; 42142, inner tank body; 42143, vacuum chamber; 4215, liquid level detection mechanism; 42151, upper float; 42152, lower float; 4216, mounting column; 4217, limiter; 4218, temperature sensor; 422, second pump body; 4221, second water outlet; 4222, pump chamber; 4223, second water inlet; 4224, water outlet pipe; 4225, front end cover; 42251, first protrusion; 4226, second motor accommodating cylinder; 42261, second protrusion; 4227, retaining rib; 42271, axially extending rib; 42272, radially extending rib; 4228, water inlet pipe; 423, pump Fixed frame; 4231, support frame; 42311, arc-shaped groove; 423111, first through hole; 42312, support groove; 4232, adapter pipe; 424, first sealing member; 425, second sealing member; 426, shock-absorbing component; 427, first exhaust pipe; 428, base; 4281, second through hole; 5, housing; 51, outer shell; 52, inner shell; 521, first accommodating area; 5211, first filter element accommodating chamber; 5212, second filter element accommodating chamber; 5213, third filter element accommodating chamber; 522, second accommodating area; 5221, second accommodating chamber; 5222, third accommodating chamber; 5223, fourth accommodating chamber; 5224, fifth accommodating chamber; 523, filter element seat; 5231, recessed portion;524, frame; 525, front side panel; 5251, opening; 526, first support frame; 527, second support frame; 6, heating element; 7, integrated water channel component; 71, first slot; 721, raw water inlet; 7221, first filter element inlet; 7222, first filter element outlet; 7231, first pump body inlet; 7232, first pump body outlet; 7241, second filter element inlet; 7242, second filter element outlet; 7243, second filter element wastewater outlet; 7251, third filter element inlet; 7252, third filter element outlet; 7261, first clean water outlet; 7262, second clean water outlet; 727, wastewater outlet; 731, first flow channel; 732, second flow channel; 73 3. Third flow channel; 734. Fourth flow channel; 735. Fifth flow channel; 736. Sixth flow channel; 737. Seventh flow channel; 738. Eighth flow channel; 741. First valve interface; 742. Second valve interface; 743. Third valve interface; 744. Fourth valve interface; 745. Fifth valve interface; 746. Check valve interface; 751. First TDS sensor interface; 752. NTC sensor interface; 753. Second TDS sensor interface; 754. Flow meter interface; 76. First plate; 77. Second plate; 78. Mounting pipe; 79. First matching valve; 81. First TDS sensor; 82. NTC sensor; 83. Second TDS sensor; 84. Flow meter;

[0274] 900, purified water dispenser;

[0275] 91, liquid buffer chamber; 911, first communication port; 912, second communication port; 913, third communication port; 914, fourth communication port;

[0276] 92. Distribution head; 921. Water dispensing switch; 922. Temperature selection operating member; 923. Distribution port; 9231. First distribution pipe; 92311. Second water retaining structure; 92312. First water distribution inlet; 9232. Second distribution pipe; 92321. Second water distribution inlet; 9233. Stopper; 9234. Exhaust gap; 9235. Outlet channel; 924. Water outlet channel; 9241. First bottom wall; 9242. Second bottom wall; 9243. Horizontal channel; 9244. Vertical channel; 925. First water retaining structure; 926. Air retaining structure; 927. Second mounting portion; 928. Inner core body; 9281. Groove structure; 929. Inner core cover; 9291. First mounting seat; 9292. Second mounting seat.

[0277] 93. Second exhaust pipe; 931. Air outlet; 94. Thermostat; 95. UV sterilization element; 96. Third sealing member;

[0278] 97. Return water structure; 971. Normal temperature water chamber; 9711. Fifth connecting port; 9712. Sixth connecting port; 972. Mixing water chamber. DETAILED DESCRIPTION

[0279] To make the technical solutions and beneficial effects of the present invention more clearly understood, the following describes the present invention in detail by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application belongs.

[0280] In the description of the present invention, unless otherwise expressly defined, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of simplifying the description of the present invention, and do not indicate that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and should not be understood as a limitation to the present invention.

[0281] In this utility model, the terms "first" and "second" are used solely for descriptive clarity and should not be construed as indicating the relative importance of the features indicated or the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, and "several" means at least one, unless expressly specified otherwise.

[0282] In this utility model, unless otherwise expressly defined, the terms "install," "connect," "connect," "fix," "dispose," etc. should be understood broadly. For example, "connection" can mean fixed connection, detachable connection, or integral molding; it can be mechanical or electrical; it can be direct connection or indirect connection through an intermediary; it can also refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0283] In the present invention, unless otherwise clearly defined, when a first feature is “on,” “above,” “above,” “above,” “below,” “below,” or “below” a second feature, the first feature and the second feature may be in direct contact, or the first feature and the second feature may be in indirect contact via an intermediate medium. Moreover, when a first feature is “on,” “above,” or “above” a second feature, it may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than the horizontal height of the second feature. When a first feature is “below,” “below,” or “below” a second feature, it may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0284] First embodiment

[0285] The following is based on Figures 1 to 30 The water purifier according to the first embodiment of the present invention will be described in detail.

[0286] In this embodiment, if Figure 1 、 Figure 18 、 Figure 29 and Figure 30 As shown, the water purifier 1000 includes a main unit 100, which includes a water channel assembly 1, a first pump body 21, a filter element assembly 3, a clean water container 41, a hot water container 42 and a housing 5. Figure 18 As shown, the waterway assembly 1 includes a first waterway 11, the water inlet of the first waterway 11 is used to access a water source, wherein the water source includes but is not limited to external tap water (such as municipal tap water) or water from a water tank, and a first pump body 21 is provided on the first waterway 11. The first pump body 21 is used to provide power for the water flow in the first waterway 11. Since the first pump body 21 needs to provide a large water power, the size of the first pump body 21 is relatively large. Figure 18 As shown, the filter element assembly 3 is connected to the first water channel 11 to purify the water source. Figure 1 and Figure 18 As shown, the clean water container 41 is used to store clean water treated by the filter element assembly 3, and the hot water container 42 is used to provide hot water. Figure 3 and Figure 4 As shown, the housing 5 has a first accommodating area 521 and a second accommodating area 522 distributed in sequence in the vertical direction. The first accommodating area 521 can be located above the second accommodating area 522 or below the second accommodating area 522. Figure 1 and Figure 5As shown, the length of the filter element assembly 3 extends along the first direction a, the filter element assembly 3 is horizontally arranged in the first accommodating area 521, and the first pump body 21, the clean water container 41 and the hot water container 42 are separately arranged in the second accommodating area 522 in the first direction a, wherein the first direction a (the length direction of the filter element assembly 3) and the second direction b (the width direction of the filter element assembly 3) are perpendicular to each other and are both parallel to the horizontal plane.

[0287] The first pump body 21 includes a first motor accommodating cylinder 211 and a pump head 212. The pump head 212 is located above the first motor accommodating cylinder 211. The total projection area of ​​the first motor accommodating cylinder 211 in the second direction b is S1. The projection area of ​​the first motor accommodating cylinder 211 on the purified water container 41 in the second direction b is S2. S2 is greater than or equal to one-fifth of S1, so that the purified water container 41 partially surrounds the first pump body. Specifically, as Figure 2 、 Figure 5 and Figure 29 As shown, the cross-section of the casing 5 is roughly rectangular, and the casing 5 has two side walls in the second direction b. Since the size of the first pump body 21 is smaller than the spatial size of the casing 5 in the second direction b, the first pump body 21 is arranged close to the inner wall of one side of the casing 5 in the second direction b, so that there is a spare space between the inner wall of the other side of the casing 5 in the second direction b and the first pump body 21, that is, the spare space between the first pump body 21 and the casing 5 in the second direction b, and part of the structure of the clean water container 41 extends into the spare space, so that the clean water container 41 partially surrounds the first pump body 21, thereby improving space utilization.

[0288] By adopting the above-described technical solution, the layout of the larger internal components of water purifier 1000 is optimized. Specifically, filter element assembly 3 is positioned horizontally within first accommodating area 521. Simultaneously, first pump body 21, purified water container 41, and hot water container 42 are separately arranged within second accommodating area 522 in a first direction a. This improves space utilization and facilitates the miniaturization of the entire device. Furthermore, arranging purified water container 41 to partially surround first pump body 21 effectively utilizes the free space between first pump body 21 and housing 5 in a second direction b, resulting in a more compact arrangement of purified water container 41 and first pump body 21 while ensuring sufficient water storage capacity. Water purifier 1000 of this solution can be used in the kitchen, providing convenient access to drinking water.

[0289] It should be understood that, herein, "vertical" refers to the height direction of the water purifier 1000 when it is working normally, "horizontal" refers to the direction perpendicular to the "vertical", "first direction a" refers to the length direction of the filter element assembly 3 when the water purifier 1000 is working normally, and "second direction b" refers to the width direction of the filter element assembly 3 when the water purifier 1000 is working normally. In addition, the "first direction a" and "second direction b" mentioned in this utility model are both in Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 24 The markings in the table shall prevail.

[0290] In one embodiment, when the clean water container 41 needs to be replenished with clean water, the water in the first waterway 11 is purified by the filter element assembly 3 and then enters the clean water container 41 under the power provided by the first pump body 21. The clean water in the clean water container 41 can be heated and then provided to the hot water container 42, or the clean water can be heated to hot water after entering the hot water container 42. Figure 1 and Figure 5 As shown, the first pump body 21 , the clean water container 41 and the hot water container 42 are sequentially arranged in the second accommodating area 522 along the first direction a according to the water flow path, which is beneficial to shortening the length of the water channel assembly 1 .

[0291] In one embodiment, the first pump body 21 is a booster pump with sufficient water power, so that water has enough power to pass through the filter element assembly 3.

[0292] In one embodiment, if Figures 2 to 4 As shown, the first accommodating area 521 is located below the second accommodating area 522. The filter element assembly 3 becomes heavy after water flows into it. The filter element assembly 3 is arranged in the first accommodating area 521 below the casing 5. In this way, the center of gravity of the water purifier 1000 is lower and more stable, which can reduce or avoid vibration of the water purifier 1000 due to operation.

[0293] Further, if Figure 1 、 Figure 3 and Figure 5 As shown, the first pump body 21 and the hot water container 42 are both roughly cylindrical, and the first pump body 21 and the hot water container 42 are both vertically arranged in the second accommodating area 522, making full use of the space in the height direction of the casing 5, avoiding increasing the size of the casing 5 in the first direction a due to the horizontal arrangement of the first pump body 21 and the hot water container 42.

[0294] Further, if Figure 1 and Figure 5As shown, since the first pump body 21 is roughly cylindrical and large in size, in order to avoid the outer contour of the filter element assembly 3 interfering with the arrangement of the first pump body 21 , the first pump body 21 is configured to be completely located above the filter element assembly 3 .

[0295] Furthermore, if Figure 5 、 Figure 6 、 Figure 14 and Figure 15 As shown, the hot water container 42 includes a tank body 421 and a second pump body 422 disposed below the tank body 421. The tank body 421 is used to store and keep hot water warm. The second pump body 422 is connected to a first water outlet 4211 at the bottom of the tank body 421 and is used to pump the hot water out of the tank body 421. The tank body 421 is cylindrical and is completely located above the filter element assembly 3. The projection of the second pump body 422 in the second direction b partially falls on the filter element assembly 3. That is, there is an empty space between the filter element assembly 3 and the housing 5 in the second direction b. The second pump body 422 is partially located in this empty space, further improving space utilization.

[0296] In one embodiment, if Figure 2 and Figure 5 As shown, the purified water container 41 is substantially L-shaped so as to partially surround the first pump body 21 .

[0297] In one embodiment, if Figure 2 and Figure 5 As shown, the first pump body 21 is roughly cylindrical, and the first side wall 411 of the clean water container 41 facing the first pump body 21 is a curved surface. The first side wall 411 partially surrounds the first pump body 21. The first side wall 411 is defined as a curved surface shape, which is conducive to the compact arrangement of the clean water container 41 and the first pump body 21.

[0298] Furthermore, if Figure 1 、 Figure 3 and Figure 5 As shown, the first pump body 21 is vertically disposed within the second accommodating area 522. The first motor accommodating cylinder 211 is used to accommodate the motor and impeller. The first pump body 21 is cylindrical. The first side wall 411 is shaped to match the circumferential surface wall of the first pump body 21, making the arrangement of the purified water container 41 and the first pump body 21 more compact.

[0299] In one embodiment, if Figure 2 and Figure 5As shown, the projection of the first motor accommodating tube 211 in the first direction a completely falls on the water purification container 41, that is, the size of the water purification container 41 in the second direction b is larger than the radial size of the first motor accommodating tube 211, and the two outermost contours of the first motor accommodating tube 211 in the second direction b do not exceed the outer contours on both sides of the water purification container 41 in the second direction b. In other words, by optimizing the positional relationship between the first motor accommodating tube 211 and the water purification container 41, the size of the housing 5 in the second direction b is avoided to be increased due to the layout of the first motor accommodating tube 211.

[0300] In one embodiment, if Figure 2 As shown, S2 is greater than half of S1 so that the purified water container 41 surrounds the first pump body 21 more.

[0301] In one embodiment, if Figure 6 As shown, the clean water container 41 partially surrounds the filter element assembly 3 , and the empty space between the filter element assembly 3 and the housing 5 is used to partially accommodate the clean water container 41 to increase the water storage capacity of the clean water container 41 .

[0302] Further, if Figure 2 and Figure 6 As shown, the projection of the filter element assembly 3 in the second direction b partially falls on the purified water container 41. Taking the filter element assembly 3 located below the purified water container 41 as an example for further explanation, the bottom of the purified water container 41 extends downward to form an extension section 413. The extension section 413 and the filter element assembly 3 are arranged sequentially in the second direction b. The free space between the filter element assembly 3 and the housing 5 in the second direction b is used to accommodate the extension section 413, which is a rational arrangement.

[0303] In one embodiment, the volume of the hot water container 42 is 1.1-1.6 times the volume of the purified water container 41. Furthermore, the volume of the hot water container 42 is 1.8-2.2 L, preferably 2 L, which can ensure that the water purifier 1000 has a large hot water flow rate, such as a hot water flow rate of ≥1.8 L / min. The volume of the purified water container 41 is 1.4-1.6 L, preferably 1.5 L, which can promptly supply the purified water to be heated to the hot water container 42.

[0304] In one embodiment, if Figure 2 、 Figure 5 and Figure 18 As shown, the main unit 100 includes a heating element 6 and a second water channel 15. One end of the second water channel 15 is connected to the first water inlet 4212 of the hot water container 42, and the other end is connected to the water outlet of the heating element 6. The purified water heated by the heating element 6 flows into the hot water container 42 through the second water channel 15 to replenish the hot water container 42. Figure 2 and Figure 3As shown, the heating element 6 is vertically disposed within the second accommodating area 522, and the heating element 6 is located on the side of the hot water container 42 facing away from the purified water container 41. The projection of the heating element 6 in the second direction b partially falls on the hot water container 42. Specifically, since the tank body 421 of the hot water container 42 is cylindrical and the outline of the housing 5 is roughly rectangular, an empty space is formed between the tank body 421 and the housing 5, especially at two corners inside the housing 5. Large empty spaces are formed respectively. The heating element 6 is disposed in one of the empty spaces, thereby improving space utilization.

[0305] In one embodiment, if Figure 1 、 Figure 2 and Figure 24 As shown, the main unit 100 includes an integrated water channel component 7, which has multiple flow channels inside. The integrated water channel component 7 is used to connect some of the water channels in the main unit 100 in sequence. The integrated water channel component 7 is located on the side of the first pump body 21 away from the clean water container 41. The integrated water channel component 7 is vertically arranged and its width extends along the second direction b. Specifically, the integrated water channel component 7 is located at the rear of the housing 5, that is, the integrated water channel component 7, the first pump body 21, the clean water container 41, the hot water container 42 and the heating element 6 are arranged in sequence from back to front, as shown in FIG. Figure 18 、 Figure 24 and Figure 26 As shown, the first water channel 11 is connected to the raw water inlet 721 of the integrated water channel component 7, and the raw water provided by the water source enters the flow channel in the integrated water channel component 7 through the raw water inlet 721, and then flows to the filter element assembly 3 through the corresponding flow channel. After being purified by the filter element assembly 3, it is provided to the clean water container 41. The clean water in the clean water container 41 is heated by the heating element 6 and provided to the hot water container 42. The integrated water channel component 7, the first pump body 21, the clean water container 41, the hot water container 42 and the heating element 6 are arranged in sequence along the flow direction of the water, and the layout is reasonable and compact.

[0306] In one embodiment, if Figure 29 As shown, the housing 5 includes an outer shell 51 and an inner shell 52. The outer shell 51 forms the outer contour structure of the host 100 to improve the appearance of the host 100. The inner shell 52 is connected to the outer shell 51 and forms a support structure for the internal components of the host 100. Specifically, as Figure 3 As shown, the inner shell 52 is provided with a connected filter cartridge seat 523 and a frame 524, the filter cartridge seat 523 is provided with a first accommodating cavity, and the first accommodating cavity constitutes a first accommodating area 521, that is, the first accommodating area 521 is provided in the filter cartridge seat 523, and the second accommodating area 522 is located in the frame 524 and above the filter cartridge seat 523.

[0307] Further, if Figure 1 and Figure 3As shown, the inner shell 52 is provided with a first support frame 526 and a second support frame 527 arranged in sequence along the first direction a. The first support frame 526 is provided with a second accommodating chamber 5221 for accommodating the first pump body 21, and the second support frame 527 is provided with a third accommodating chamber 5222 for accommodating the hot water container 42. The clean water container 41 partially surrounds the first support frame 526. A fourth accommodating chamber 5223 is formed between the outer wall of the second accommodating chamber 5221 (i.e., the outer wall of the first support frame 526), ​​the outer wall of the third accommodating chamber 5222 (i.e., the outer wall of the second support frame 527), and the outer wall of the filter element seat 523. The clean water container 41 is arranged in the fourth accommodating chamber 5223. Figures 1 to 4 As shown, the front side plate 525 of the inner shell 52 is located on the side of the hot water container 42 away from the clean water container 41, and a fifth accommodating chamber 5224 is formed between the outer wall of the third accommodating chamber 5222 and the inner wall of the front side plate 525. The heating element 6 of the main unit 100 is arranged in the fifth accommodating chamber 5224. The second accommodating chamber 5221, the third accommodating chamber 5222, the fourth accommodating chamber 5223 and the fifth accommodating chamber 5224 together constitute the second accommodating area 522.

[0308] Furthermore, if Figure 2 and Figure 3 As shown, the cavity wall of the second accommodating cavity 5221 matches the shape of the outer wall of the first pump body 21, the cavity wall of the third accommodating cavity 5222 matches the shape of the outer wall of the hot water container 42, and the cavity wall of the fourth accommodating cavity 5223 matches the shape of the outer wall of the clean water container 41, so as to fully utilize the internal space of the inner shell 52.

[0309] In one embodiment, if Figure 5 As shown, the filter element assembly 3 includes a first filter element 31, a second filter element 32 and a third filter element 33 arranged in parallel with each other. The first filter element 31 and the third filter element 33 are sequentially distributed along the second direction b, and the second filter element 32 is located above the first filter element 31 and the third filter element 33. Figure 13 As shown, the lowest point D1 of the second filter element 32 is located in the space relatively formed by the first filter element 31 and the third filter element 33 in the second direction b, and the lowest point D1 of the second filter element 32 is higher than the axis O1 of the first filter element 31 and the axis O3 of the third filter element 33, which is beneficial to reducing the height of the filter element assembly 3, and at the same time can avoid the second filter element 32 extending too much into the space relatively formed by the first filter element 31 and the third filter element 33 in the second direction b, resulting in an excessive increase in the distance between the first filter element 31 and the third filter element 33.

[0310] Furthermore, if Figure 13As shown, the first filter element 31, the second filter element 32 and the third filter element 33 are arranged in an isosceles triangle, that is, the line connecting the centers of the cross-sections of the first filter element 31, the second filter element 32 and the third filter element 33 in the cross section of the filter element assembly 3 forms an isosceles triangle, which facilitates compact arrangement and helps to reduce the space occupied by the filter element assembly 3.

[0311] Furthermore, if Figure 5 and Figure 13 As shown, the first filter element 31 and the third filter element 33 have the same diameter and are both smaller than the diameter of the second filter element 32. Specifically, the first filter element 31 is a filter element made of PP cotton and activated carbon rods, which is used to intercept large particles of mud, sand, and rust, absorb discoloration and odor, and remove residual chlorine; the second filter element 32 is an RO reverse osmosis membrane filter element, which is used to remove harmful substances such as heavy metals, bacteria, viruses, microorganisms, nitrates, chloroform, and carbon tetroxide in the water; and the third filter element 33 is used to inhibit microorganisms and improve the taste. Among them, the second filter element 32 is larger in size. In order to facilitate the compact arrangement of the first filter element 31, the second filter element 32, and the third filter element 33, the first filter element 31 and the third filter element 33 are configured to have equal diameters. The second filter element 32 is located above the first filter element 31 and the third filter element 33, and the three are arranged in an isosceles triangle.

[0312] Furthermore, if Figure 13 As shown, the axial distance between the first filter element 31 and the third filter element 33 is smaller than the diameter of the second filter element 32. By controlling the axial distance between the first filter element 31 and the third filter element 33, the size of the filter element assembly 3 in the second direction b is minimized as much as possible.

[0313] In one embodiment, if Figure 1 and Figure 4 As shown, the first accommodating area 521 includes a first filter cartridge accommodating chamber 5211 for accommodating the first filter cartridge 31, a second filter cartridge accommodating chamber 5212 for accommodating the second filter cartridge 32, and a third filter cartridge accommodating chamber 5213 for accommodating the third filter cartridge 33. The walls of the first filter cartridge accommodating chamber 5211, the second filter cartridge accommodating chamber 5212, and the third filter cartridge accommodating chamber 5213 are connected end to end in sequence to form the first accommodating area 521. In other words, the first filter cartridge accommodating chamber 5211, the second filter cartridge accommodating chamber 5212, and the third filter cartridge accommodating chamber 5213 are interconnected, which facilitates the placement of the first filter cartridge 31, the second filter cartridge 32, and the third filter cartridge 33 as close to each other as possible, thereby facilitating a miniaturized design of the filter cartridge seat 523 and reducing the space occupied by the filter cartridge seat 523.

[0314] Furthermore, if Figure 4 and Figure 5As shown, the cavity wall of the first filter element accommodating cavity 5211 matches the shape of the circumferential surface wall of the first filter element 31, and the first filter element accommodating cavity 5211 surrounds more than half of the circumference of the first filter element 31; the cavity wall of the second filter element accommodating cavity 5212 matches the shape of the circumferential surface wall of the second filter element 32, and the second filter element accommodating cavity 5212 surrounds more than half of the circumference of the second filter element 32; the cavity wall of the third filter element accommodating cavity 5213 matches the shape of the circumferential surface wall of the third filter element 33, and the third filter element accommodating cavity 5213 surrounds more than half of the circumference of the third filter element 33, so that the corresponding filter element accommodating cavity can better surround the corresponding filter element.

[0315] Furthermore, if Figures 2 to 4 As shown, the contours of the outer wall and the inner wall of the filter cartridge seat 523 are roughly the same, which is beneficial to reducing the space occupied by the filter cartridge seat 523, and the outer wall of the filter cartridge seat 523 can be formed with a recessed portion 5231, which can be used to accommodate other internal components, such as the third water channel 16 of the water channel assembly 1 and the third pump body 22 arranged on the third water channel 16, thereby improving space utilization.

[0316] In one embodiment, if Figure 3 and Figure 13 As shown, the front side plate 525 is provided with three openings 5251, and the three openings 5251 are respectively connected to the first filter element accommodating chamber 5211, the second filter element accommodating chamber 5212 and the third filter element accommodating chamber 5213; the first filter element 31, the second filter element 32 and the third filter element 33 are respectively assembled through the corresponding openings 5251.

[0317] Furthermore, if Figure 24 As shown, the integrated water channel component 7 is provided with three first slots 71, and a first matching valve 79 is provided in the first slot 71. Figure 1 、 Figure 3 and Figure 24 As shown, the three first slots 71 are respectively arranged in one-to-one correspondence with the three openings 5251, and the head end of each filter element of the filter element assembly 3 is respectively clamped in the corresponding opening 5251 and the tail end is respectively clamped in the corresponding first slot 71, that is, the two ends of the corresponding filter element are respectively clamped through the corresponding openings 5251 and the first slots 71, which makes assembly convenient, and the second matching valve of each filter element is plugged into and matched with the corresponding first matching valve 79, so that the filter element can be connected to the corresponding flow channel on the integrated water channel component 7, so that water can flow in and out of the filter element.

[0318] In one embodiment, if Figures 7 to 10As shown, each filter element of the filter element assembly 3 is equipped with a matching locking assembly 34 and unlocking member 35. The locking assembly 34 is used to lock the corresponding filter element to the inner shell 52; the unlocking member 35 is used to unlock the locking assembly 34 to disassemble and assemble the corresponding filter element for replacement.

[0319] Furthermore, if Figures 7 to 10 As shown, the unlocking member 35 is movably connected to the corresponding filter element. The locking assembly 34 includes a locking member 341 and an elastic member 342. The locking member 341 is movably connected to the front side plate 525 and has a locked position and an unlocked position. The elastic member 342 applies an elastic force to the locking member 341 to maintain the locking member 341 in the locked position. At this time, the locking member 341 can restrict the removal of the corresponding filter element, thereby achieving locking. The unlocking member 35 can move under external force, driving the locking member 341 to overcome the elastic force and move to the unlocking position. At this time, the locking member 341 releases the restriction on the corresponding filter element, and the user can remove the corresponding filter element.

[0320] In one embodiment, when the locking member 341 is in the locked position, it is at least partially located in the extraction path of the corresponding filter cartridge, thereby preventing the filter cartridge from being removed and locking the filter cartridge. When the locking member 341 is in the unlocked position, the locking member 341 is out of the extraction path, allowing the user to remove the corresponding filter cartridge. Specifically, the filter cartridge is cylindrical, with the axial direction of the filter cartridge parallel to the first direction a. When the filter cartridge needs to be replaced, the filter cartridge is removed or inserted along the first direction a for ease of operation. A portion of the locking member 341 is located in the extraction path of the corresponding filter cartridge, meaning that the portion is located in front of the corresponding filter cartridge in the extraction direction. When the filter cartridge has a tendency to move in the extraction direction relative to the corresponding filter cartridge accommodating cavity, the filter cartridge abuts the locking member 341, preventing it from being removed. The extraction path specifically refers to the spatial region traversed by the filter cartridge from the start of extraction to the end of extraction. The end of extraction refers to the point at which the rear end of the filter cartridge is completely within the corresponding filter cartridge accommodating cavity.

[0321] Furthermore, if Figure 8 and Figure 10 As shown, locking member 341 is a lock buckle, and locking assembly 34 also includes a buckle slot 343 provided on the corresponding filter element. When locking member 341 is in the locked position, locking member 341 buckles with buckle slot 343, and the corresponding filter element is locked through the buckle engagement of the two. The locking structure is simple and the locking is stable. When locking member 341 is in the unlocked position, locking member 341 disengages from buckle slot 343, releasing the restriction.

[0322] Furthermore, if Figure 7 and Figure 8As shown, the locking assembly 34 further includes a pivot shaft 344, which is mounted on the front side plate 525. The locking member 341 is mounted on the side of the front side plate 525 away from the hot water container 42 via the pivot shaft 344. The locking member 341 can rotate around the pivot shaft 344 under external force, thereby being able to switch between the locked position and the unlocked position. Specifically, as shown in FIG. Figure 8 and Figure 12 As shown, the locking member 341 has two pivot arms 3412 spaced apart along the second direction b and pivoted to the pivot shaft 344. The elastic member 342 can be a torsion spring, which is sleeved on the corresponding pivot shaft 344 and located between the two pivot arms 3412.

[0323] Further, if Figures 7 to 10 As shown, each filter element is provided with a filter element end cap 36, which is provided with a first groove 361. The unlocking member 35 includes a handle portion 351 and a first mounting portion 352, which is rotatably connected to the first groove 361. The first mounting portion 352 is provided with a buckling surface 3521, which forms a buckling groove 343 with the groove wall of the first groove 361. The locking member 341 is locked by locking the filter element end cap 36.

[0324] Further, if Figure 8 and Figure 10 As shown, the locking member 341 includes a locking protrusion 3411, which is engaged with the locking groove 343 and the locking surface 3521. The first mounting portion 352 is provided with a pushing surface 3522. When the user pulls the handle 351, the first mounting portion 352 rotates, causing the locking surface 3521 to disengage from the locking protrusion 3411. Then, during the rotation, the pushing surface 3522 pushes the locking protrusion 3411, causing the locking member 341 to rotate about the corresponding pivot axis 344, thereby disengaging the locking protrusion 3411 from the locking groove 343. That is, the locking member 341 leaves the locked position and is unlocked.

[0325] Further, if Figure 9 As shown, the first mounting portion 352 is provided with an axial hole 3523, and the filter element end cap 36 is provided with a mounting shaft 362. The mounting shaft 362 is located in the first groove 361. The first mounting portion 352 and the filter element end cap 36 are rotatably connected and assembled via the axial hole 3523 and the mounting shaft 362. The axis of the mounting shaft 362 extends along the second direction b, and the axis of the pivot shaft 344 extends along the first direction a. In this way, when the handle portion 351 drives the first mounting portion 352 to rotate, the pushing surface 3522 can push the locking protrusion 3411.

[0326] In one embodiment, if Figure 7 and Figure 8As shown, two locking members 341 are disposed on both radial sides of each filter element to ensure locking stability.

[0327] Further, if Figure 8 、 Figure 11 and Figure 12 As shown, the two locking members 341 located between the first filter element 31 and the third filter element 33 are pivotally connected to the same pivot shaft 344 to reduce the space occupied by the two locking members 341. Specifically, the dimension of one locking member 341 in the first direction a is larger than the dimension of the other locking member 341 in the first direction a. The two pivot arms 3412 of the larger locking member are respectively located outside the two pivot arms 3412 of the smaller locking member. The elastic member 342 is sleeved on the pivot shaft 344 and located between the two pivot arms 3412 of the smaller locking member. The two ends of the elastic member 342 respectively abut the two locking members 341.

[0328] In one embodiment, if Figure 14 and Figure 15 As shown, the hot water container 42 includes a tank body 421 and a second pump body 422. The tank body 421 is provided with a water storage chamber 4213 and a first water outlet 4211 connected to the bottom of the water storage chamber 4213. The second pump body 422 is arranged horizontally below the tank body 421 to save space. The second pump body 422 includes a second water outlet 4221, a pump chamber 4222, and a second water inlet 4223, which are connected in sequence. The second water inlet 4223 is connected to the first water outlet 4211. Water in the tank body 421 flows sequentially through the first water outlet 4211 and the second water inlet 4223 into the pump chamber 4222, and is then pumped out through the second water outlet 4221. In addition, since the second pump body 422 conveys hot water, there is a large amount of steam in the pump chamber 4222. In this solution, the second water outlet 4221 is set at the top of the pump chamber 4222. In this way, while the water in the pump chamber 4222 flows, the water pressure can discharge the steam in the pump chamber 4222 from the second water outlet 4221, thereby reducing or avoiding the generation of trapped air.

[0329] By adopting the above technical solution, the second pump body 422 is horizontally arranged below the tank body 421, which can save the space occupied by the hot water container 42 in the height direction of the casing 5. In addition, the second water outlet 4221 is arranged at the top of the pump chamber 4222, which can reduce or avoid the generation of trapped air in the pump chamber 4222, so as to prevent the water output of the second pump body 422 from being affected by the generation of trapped air.

[0330] In one embodiment, if Figure 15 and Figure 17As shown, the second pump body 422 includes a water outlet pipe 4224, and the communication port of the water outlet pipe 4224 and the pump chamber 4222 forms a second water outlet 4221. The water outlet pipe 4224 is inclined upward from the second water outlet 4221, which is conducive to accelerating the discharge of steam.

[0331] Furthermore, the angle between the water outlet pipe 4224 and the horizontal plane is 5°-20°, and the steam discharge speed is better.

[0332] In one embodiment, if Figure 15 and Figure 16 As shown, the second pump body 422 includes a front cover 4225 and a second motor accommodating tube 4226. The second motor accommodating tube 4226 is used to accommodate the motor and impeller. That is, the second pump body 422 is an impeller pump. The second water outlet 4221 and the second water inlet 4223 are respectively provided on the front cover 4225 for easy processing.

[0333] Furthermore, if Figure 16 and Figure 17 As shown, the outer periphery of the front end cover 4225 is provided with four first protrusions 42251, and the outer periphery of the second motor accommodating tube 4226 is provided with four second protrusions 42261. The first protrusions 42251 and the second protrusions 42261 are provided in a one-to-one correspondence and connected by fasteners (such as screws). The second water outlet 4221 of the second pump body 422 is located below the first protrusion 42251 at the highest point, which can prevent the first protrusion 42251 at the highest point from interfering with the setting of the water outlet pipe 4224. In addition, the water outlet pipe 4224 does not protrude from the first protrusion 42251, which is conducive to saving the space occupied by the second pump body 422 in the height direction of the casing 5. Preferably, as Figure 17 As shown, in order to ensure stable assembly of the front end cover 4225 and the second motor accommodating cylinder 4226, four first protrusions 42251 are evenly spaced along the circumference of the second pump body 422. Of course, the number of first protrusions 42251 is not limited to four, and can also be two, three, or even more. The number of second protrusions 42261 is consistent with the number of first protrusions 42251.

[0334] In one embodiment, if Figure 15 As shown, the second pump body 422 is provided with a retaining rib 4227, which is located at the second water inlet 4223. When the hot water in the tank body 421 enters the pump chamber 4222 through the second water inlet 4223, the hot water will collide with the retaining rib 4227. In other words, the retaining rib 4227 has a breaking effect on the hot water flow, thereby achieving water vapor separation by breaking up the hot water flow. In this way, the separated steam is discharged through the second water outlet 4221 under the action of water pressure, thereby better preventing the formation of trapped air.

[0335] Furthermore, if Figure 15 As shown, the retaining rib 4227 includes an axially extending rib 42271 and a radially extending rib 42272. The axially extending rib 42271 extends along the axial direction of the second pump body 422, and the radially extending rib 42272 extends along the radial direction of the second pump body 422. The number of radially extending ribs 42272 can be one, two or even more. In a specific embodiment, three radially extending ribs 42272 are evenly spaced and distributed along the circumference of the axially extending rib 42271 and are respectively connected to the axially extending rib 42271. The axially extending rib 42271 has a bullet-shaped structure, and the pointed end of the axially extending rib 42271 faces the second water inlet 4223, which is conducive to better dispersing the hot water flow.

[0336] In one embodiment, if Figure 15 and Figure 16 As shown, the hot water container 42 includes a pump fixing bracket 423 , and the second pump body 422 is mounted on the bottom of the tank body 421 through the pump fixing bracket 423 .

[0337] Further, if Figures 14 to 16 As shown, the pump fixing frame 423 includes a support frame 4231 and a transfer pipe 4232, and the second pump body 422 includes a water inlet pipe 4228. The second pump body 422 is arranged on the support frame 4231, and the two ends of the transfer pipe 4232 are respectively connected to the first water outlet 4211 and the second water inlet 4223. That is, the first water outlet 4211 and the second water inlet 4223 are connected via the transfer pipe 4232, replacing the solution of direct connection between the first water outlet 4211 and the second water inlet 4223. This is conducive to simplifying the structural design of the water inlet pipe 4228 and the first water outlet 4211 of the tank body 421. The water inlet pipe 4228 and the first water outlet 4211 can be directly designed as a straight pipe structure to reduce processing costs. In addition, by limiting the length of the transfer pipe 4232, the heat loss in the process of transporting hot water from the tank body 421 to the second pump body 422 can be reduced, and the distance between the second pump body 422 and the tank body 421 can be shortened as much as possible to save space.

[0338] Further, if Figure 15 As shown, the water inlet pipe 4228 is plugged into one end of the adapter pipe 4232 and a first seal 424 is provided at the assembly point of the two. The other end of the adapter pipe 4232 is plugged into the first water outlet 4211 and a second seal 425 is provided at the assembly point of the two to ensure the sealing of the entire system of the hot water container 42.

[0339] In one embodiment, if Figures 14 to 16As shown, the support frame 4231 is an open structure that half surrounds the second pump body 422. When assembling the second pump body 422 and the pump fixing frame 423, the water inlet pipe 4228 is plugged into one end of the adapter pipe 4232, and the second motor accommodating cylinder 4226 is supported on the support frame 4231.

[0340] In one embodiment, if Figure 14 and Figure 16 As shown, a shock-absorbing component 426 is sleeved around the outer periphery of the second pump body 422 to reduce noise generated during operation. Specifically, the shock-absorbing component 426 surrounds the outer periphery of the second pump body 422, and the support frame 4231 secures the second pump body 422 by clamping the shock-absorbing component 426. The shock-absorbing component 426 has a certain degree of flexibility or elasticity. On the one hand, it can buffer the vibration generated by the second pump body 422. On the other hand, it helps to reduce the machining accuracy requirements of the support frame 4231. In other words, deviations in the machining dimensions of the support frame 4231 can be compensated by the deformation of the shock-absorbing component 426.

[0341] Furthermore, if Figure 16 As shown, the support frame 4231 includes an arcuate groove 42311 and two supporting grooves 42312. The two supporting grooves 42312 are respectively connected to both sides of the arcuate groove 42311. The arcuate groove 42311 is used to support the barrel of the second motor accommodating barrel 4226. The two supporting grooves 42312 are used to respectively support the two pairs of first protrusions 42251 and second protrusions 42261 of the second pump body 422. Figure 14 and Figure 15 As shown, the bottom of the tank 421 is mounted on the base 428, and the pump fixing bracket 423 is mounted on the bottom of the base 428. Figure 15 and Figure 16 As shown, a first through hole 423111 is provided in the arc-shaped groove 42311, a second through hole 4281 is provided in the base 428, a pair of first protrusions 42251 and second protrusions 42261 at the lowest position are inserted into the first through hole 423111, and a pair of first protrusions 42251 and second protrusions 42261 at the highest position are inserted into the second through hole 4281.

[0342] In one embodiment, if Figure 6 As shown, the second pump body 422 is located at the bottom of the tank body 421 and is arranged close to one side of the tank body 421. In this way, the distance between the tank body 421 and the filter element assembly 3 in the height direction of the casing 5 can be reduced as much as possible. Specifically, in order to reduce the interference of the second pump body 422 on the reduction of the distance between the tank body 421 and the filter element assembly 3, the second pump body 422 can be partially located on one side of the filter element assembly 3 in the second direction b, that is, the projection of the second pump body 422 in the second direction b partially falls on the second filter element 32 of the filter element assembly 3.

[0343] Furthermore, the axial direction of the second pump body 422 is parallel to the first direction a, that is, the second pump body 422 is arranged in parallel with the second filter element 32, so that the second pump body 422 can be partially located on the radial side of the second filter element 32, thereby facilitating the reduction of the interference of the second pump body 422 on the reduction of the distance between the tank body 421 and the filter element assembly 3. Figure 6 and Figure 16 As shown, the water outlet pipe 4224 of the second pump body 422 is completely located below the tank body 421, making full use of the space between the tank body 421 and the filter element assembly 3 to accommodate the water outlet pipe 4224, avoiding the water outlet pipe 4224 extending to the radial outside of the tank body 421 and interfering with the layout of other components.

[0344] In one embodiment, if Figure 14 As shown, the tank body 421 is provided with a heat-insulating structure 4214 , which circumferentially surrounds the water storage cavity 4213 to reduce the cooling rate of the hot water in the tank body 421 .

[0345] Furthermore, the tank body 421 is a double-layer vacuum structure, and the double-layer vacuum structure constitutes a heat-insulating structure 4214. Specifically, Figure 14 As shown, the thermal insulation structure 4214 includes an outer tank body 42141 and an inner tank body 42142. The outer tank body 42141 and the inner tank body 42142 form a vacuum cavity 42143. The outer tank body 42141, the vacuum cavity 42143 and the inner tank body 42142 cooperate to achieve thermal insulation.

[0346] In one embodiment, a liquid level detection mechanism 4215 is provided in the tank body 421 to obtain liquid level information of the water storage chamber 4213 .

[0347] Further, if Figure 14 As shown, the liquid level detection mechanism 4215 includes an upper float 42151, a lower float 42152 and a liquid level sensor (not shown in the figure). The upper float 42151 and the lower float 42152 are both located in the water storage chamber 4213. The upper float 42151 can float up and down between a first position and a second position, and the lower float 42152 can float up and down between a third position and a fourth position. When the water level in the water storage chamber 4213 changes, the liquid level sensor obtains the position information of the upper float 42151 and the lower float 42152 in the up and down directions to obtain the liquid level information of the water storage chamber 4213, so as to accurately control the amount of hot water stored in the water storage chamber 4213.

[0348] Further, if Figure 14As shown, a mounting post 4216 is provided within the tank body 421. The mounting post 4216 is parallel to the axis of the tank body 421. An upper float 42151 and a lower float 42152 are movably mounted on the mounting post 4216. Four stoppers 4217 are provided on the periphery of the mounting post 4216. The four stoppers 4217 are respectively arranged in a first position, a second position, a third position, and a fourth position. Two of the stoppers 4217 are used to restrict the upper float 42151 to floating up and down only between the first position and the second position, and the other two stoppers 4217 are used to restrict the lower float 42152 to floating up and down only between the third position and the fourth position.

[0349] Furthermore, the mounting column 4216 has a hollow portion (not shown in the figure), and the liquid level sensor is installed in the hollow portion.

[0350] In one embodiment, if Figure 14 As shown, a temperature sensor 4218 is provided in the tank body 421 for obtaining water temperature information in the water storage chamber 4213 so as to timely adjust the water temperature in the tank body 421 so that the hot water always maintains a preset temperature value, wherein the preset temperature value can be a specific value (such as 85°C) or a range value (such as 82-88°C).

[0351] In one embodiment, if Figure 29 and Figure 30 As shown, the water purifier 1000 further includes a purified water distributor 900 for distributing water to the outside. Figure 18 As shown, the main unit 100 includes a water circuit assembly 1, which includes a hot water supply circuit 12 and a return circuit 13. The two ends of the hot water supply circuit 12 are connected to the clean water dispenser 900 and the hot water container 42, respectively. The two ends of the return circuit 13 are connected to the clean water dispenser 900 and the hot water container 42, respectively. The hot water in the hot water container 42 flows into the clean water dispenser 900 through the hot water supply circuit 12 and is distributed through the clean water dispenser 900. When the return circuit 13 is opened, at least part of the water remaining in the clean water dispenser 900 flows back into the hot water container 42 through the return circuit 13, reducing the residual water content in the clean water dispenser 900. Of course, the water returning from the return circuit 13 is not limited to returning to the hot water container 42. It can also return to other containers (such as a separately configured return container) or return to the wastewater pipe.

[0352] By adopting the above technical solution, by adding a return water channel 13 between the purified water dispenser 900 and the hot water container 42, when the return water channel 13 is opened, at least part of the water remaining in the purified water dispenser 900 will flow back into the tank 421 of the hot water container 42 through the return water channel 13, thereby reducing the amount of residual water in the purified water dispenser 900. When hot water is taken next time, the waiting time for hot water can be shortened, the amount of cold water output can be reduced, the accuracy of the water temperature can be improved, the customer experience can be improved, and water waste can be reduced. In addition, the hot water also undergoes high-temperature sterilization treatment on the water channel during the return process, making drinking water healthier.

[0353] In one embodiment, the purified water dispenser 900 is located outside the main unit 100 , and the purified water dispenser 900 and the main unit 100 are connected via a connecting pipe.

[0354] In another embodiment, the purified water dispenser 900 may also be mostly located inside the main unit 100 , with the water outlet end of the dispensing port 923 being located outside the main unit 100 .

[0355] In one embodiment, if Figure 18 As shown, the water circuit assembly 1 includes a first valve 141, which is disposed on the return water circuit 13. When the first valve 141 is closed, the return water circuit 13 is blocked. When the first valve 141 is opened, the return water circuit 13 is opened. At this time, if there is residual hot water in the purified water dispenser 900, since the return water circuit 13 is open, at least some of the remaining water in the purified water dispenser 900 can flow back into the hot water container 42 through the return water circuit 13.

[0356] In one embodiment, if Figure 18 As shown, the hot water container 42 includes a tank body 421 and a second pump body 422. The second pump body 422 is provided on the hot water supply water path 12 and is used to pump out the water in the tank body 421 of the hot water container 42. Specifically, as Figure 15 and Figure 18 As shown, the second water outlet 4221 of the second pump body 422 is connected to the water inlet of the hot water supply waterway 12. The second pump body 422 first pumps the water in the tank body 421 into the pump chamber 4222, and then pumps it into the hot water supply waterway 12 through the second water outlet 4221, and drives the hot water to flow forward in the hot water supply waterway 12.

[0357] In one embodiment, if Figures 18 to 20 As shown, the purified water dispenser 900 includes a liquid buffer chamber 91 and a distribution head 92. The liquid buffer chamber 91 is used to temporarily store liquid. The hot water supply waterway 12 is connected to the liquid buffer chamber 91, and hot water from the hot water supply waterway 12 flows into the distribution head 92 through the liquid buffer chamber 91.

[0358] Further, if Figures 18 to 20As shown, the return water channel 13 and the liquid cache chamber 91 are connected before the water purification dispenser 900 distributes water. The return water channel 13 is opened, and the hot water container 42, the hot water supply water channel 12, the liquid cache chamber 91 and the return water channel 13 are connected in sequence to form a preheating circulation water channel; under the power provided by the second pump body 422, a preheating water circulation is formed in the preheating circulation water channel, so that the residual water in the liquid cache chamber 91 flows back to the hot water container 42 through the return water channel 13, and the hot water supply water channel 12 and the liquid cache chamber 91 are filled with hot water. In this way, the user can get hot water immediately when triggering the water extraction switch 921, thereby reducing the waiting time for hot water.

[0359] In one embodiment, when the opening condition of the return water channel 13 is met, the return water channel 13 opens, allowing the water in the liquid buffer chamber 91 to flow back into the hot water container 42 through the return water channel 13. When the closing condition of the return water channel 13 is met, the return water channel 13 is blocked. The opening condition includes the start of the preheated water circulation, and the closing condition includes the end of the preheated water circulation. The preheated water circulation allows the residual water in the liquid buffer chamber 91 to flow back into the hot water container 42 through the return water channel 13.

[0360] In one embodiment, when the purified water dispenser 900 dispenses water, the return water path 13 is blocked to avoid interfering with the user's water collection. When the purified water dispenser 900 stops dispensing hot water, the return water path 13 is opened, and the water in the liquid buffer chamber 91 flows back to the hot water container 42 through the return water path 13 to reduce the amount of residual water in the purified water dispenser 900. It should be understood that when the distribution head 92 is directly connected to the liquid buffer chamber 91, if a small amount of water needs to be retained at the distribution port 923 of the purified water dispenser 900 to form a liquid seal each time water is taken, the liquid seal water is stored in the purified water dispenser 900, and the remaining water flows back to the tank body 421 of the hot water container 42 through the return water path 13. The influence of the content of the liquid seal water on the water temperature when taking hot water can also be ignored. If the distribution port 923 of the purified water dispenser 900 is isolated from the outside air by other means or the distribution port 923 is not isolated from the outside air each time the water is taken out, all the remaining water in the purified water dispenser 900 can flow back to the tank 421 of the hot water container 42 through the return water path 13, achieving the effect of zero waiting, zero stale water, and zero cold water when taking hot water. Figures 18 to 20 As shown, the liquid buffer chamber 91, the return waterway 13, and the hot water container 42 are arranged sequentially from top to bottom, with a height difference between them. This height difference allows the water in the liquid buffer chamber 91 to flow back into the hot water container 42 through the return waterway 13, resulting in a simple return structure. Of course, the structure providing the return power for the return waterway 13 is not limited to this. A low-power pump can also be provided on the return waterway 13 to provide the return power.

[0361] In one embodiment, if Figure 29As shown, the dispensing head 92 includes a trigger element and a water intake switch 921. When the trigger element is operated and the water intake switch 921 is not open, the second pump body 422 operates to start the preheated water circulation.

[0362] Further, if Figure 30 As shown, the dispenser head 92 includes a temperature selection operating member 922, which serves as a trigger element. When a user needs to dispense water, they first operate the temperature selection operating member 922 to select the water temperature. At the moment the temperature selection operating member 922 is operated, the second pump body 422 is operated, and the preheated water circulation begins.

[0363] Furthermore, the preheating water cycle is configured so that the temperature of the hot water in the hot water supply circuit 12 reaches a preset temperature value after the preheating water cycle is executed for 3-5 seconds or one cycle. It typically takes 3-5 seconds for the user to operate the temperature selection control element 922. Once the user selects the water temperature, the temperature of the hot water in the hot water supply circuit 12 has reached the preset temperature value, and the user can immediately operate the water dispensing switch 921 to dispense water, providing rapid hot water supply.

[0364] In one embodiment, the structure of the temperature selection operating member 922 and the water intake switch 921 includes but is not limited to a touch button or a mechanical button or a knob.

[0365] In one embodiment, the top surface of the dispensing head 92 is a touchscreen that includes indicator lights (not shown). These indicators can be used to indicate the position of the temperature selection element 922 and the water dispensing switch 921, as well as other information (e.g., the length of the water dispensing wait time). When the touchscreen is in its initial state, the indicator lights are half-illuminated, making it easier for the user to see the positions of the temperature selection element 922 and the water dispensing switch 921. When the touchscreen is touched, the indicator lights fully illuminate, providing a clearer display of the information.

[0366] In one embodiment, if Figure 20 and Figure 22 As shown, the liquid cache cavity 91 includes a first communication port 911, a second communication port 912 and a third communication port 913, and the first communication port 911 and the second communication port 912 are located below the third communication port 913. Figures 18 to 22As shown, the hot water supply waterway 12 is connected to the first connecting port 911, and the return waterway 13 is connected to the second connecting port 912. A distribution port 923 is provided at one end of the distribution head 92, and the other end of the distribution head 92 is connected to the third connecting port 913. When a preheating water circulation is formed in the preheating circulation waterway formed by the sequential connection of the hot water container 42, the hot water supply waterway 12, the liquid buffer chamber 91, and the return waterway 13, the hot water in the hot water container 42 is transported to the liquid buffer chamber 91 via the hot water supply waterway 12 and the first connecting port 911. Because the first connecting port 911 and the second connecting port 912 are located below the third connecting port 913, the hot water in the liquid buffer chamber 91 flows into the return waterway 13 through the second connecting port 912, and does not or is unlikely to flow upward out of the third connecting port 913.

[0367] In one embodiment, the heating element 6 is disposed on the hot water supply water path 12 , and the second pump body 422 is located on the water path between the hot water container 42 and the heating element 6 . The heating element 6 is used to heat the water flow in the hot water supply water path 12 .

[0368] Furthermore, if Figure 18 As shown, the hot water supply water path 12 includes a first hot water pipe 121 and a second hot water pipe 122, the water outlet end of the first hot water pipe 121 is connected to the liquid cache chamber 91, the water inlet end of the second hot water pipe 122 is connected to the hot water container 42, and the water outlet end of the second hot water pipe 122 is connected to the heating element 6, that is, when the hot water container 42 supplies hot water to the purified water dispenser 900, the hot water container 42, the second hot water pipe 122, the heating element 6, the first hot water pipe 121 and the liquid cache chamber 91 are connected in sequence along the direction of water flow.

[0369] The water circuit assembly 1 includes a second water circuit 15 and a second valve 142. The water outlet of the second water circuit 15 is connected to the hot water container 42. The first water outlet of the second valve 142 is connected to the water inlet of the first hot water pipe 121. The second water outlet of the second valve 142 is connected to the second water circuit 15. The water inlet of the second valve 142 is connected to the heating element 6. When the water temperature in the hot water container 42 does not reach the preset value and the water purifier 1000 is not turned on to dispense water, the first water outlet of the second valve 142 is closed and the second water outlet is open. The heating element 6 and the second pump body 422 are turned on. The water in the hot water container 42 enters the heating element 6 through the second hot water pipe 122. After being heated by the heating element 6, it circulates through the second water circuit 15 and flows into the hot water container 42, forming a heating circulation water circuit, so that the water temperature in the hot water container 42 reaches the preset value. If the user needs to take water, the first water outlet end of the second valve 142 is in the open state, and the second water outlet end of the second valve 142 is in the closed state. The water in the hot water container 42 passes through the second hot water pipe 122, the heating element 6 and the first hot water pipe 121 in turn and enters the liquid cache chamber 91, and is distributed through the distribution head 92.

[0370] In one embodiment, if Figure 18 As shown, the filter element assembly 3 is arranged on the first water channel 11, and the water outlet of the first water channel 11 is connected to the purified water dispenser 900 to supply purified water at room temperature for direct drinking by the user. The water temperature of the room temperature water is related to the current ambient temperature and is not limited to a specific value.

[0371] Further, if Figure 18 and Figure 22 As shown, the water outlet of the first water channel 11 is connected to the fourth communication port 914 of the liquid buffer chamber 91, and the first water channel 11 is used to supply normal temperature water to the liquid buffer chamber 91. The preset temperature value in the hot water container 42 is set to T1, the temperature of the normal temperature water provided by the first water channel 11 is T2, and the target temperature of the water is T m The preset temperature value T1 in the hot water container 42 is 82-88° C., preferably 85° C., which can prevent the hot water container 42 from boiling water.

[0372] Water extraction includes the following four modes:

[0373] (1) When T m =T1, the user's water intake target is the second level of hot water (for example, 85°C water), and the hot water in the hot water container 42 can be used directly. The water in the hot water container 42 flows into the distribution head 92 through the hot water supply waterway 12 and the liquid buffer chamber 91 in turn, and is distributed to the user through the distribution head 92.

[0374] (2) When T m =T2, the user's water target is room temperature water, and the room temperature water in the first water channel 11 can be directly taken. The water in the first water channel 11 flows into the distribution head 92 through the liquid buffer chamber 91 and is distributed to the user through the distribution head 92.

[0375] (3) When T2<T m When T1 is less than 1, the user's water intake target is the first level of hot water (for example, 45°C), and the water temperature is between the water temperature in the hot water container 42 and the normal temperature water temperature. The hot water flow in the hot water container 42 and the normal temperature water flow in the first water channel 11 are mixed in the liquid buffer chamber 91. By controlling the mixing amount of the normal temperature water and the hot water, the user's desired water temperature (for example, 45°C) is achieved. That is, the mixed temperature is T m The water flows into the distribution head 92 and is distributed to users through the distribution head 92.

[0376] (4) When T m When >T1, the user's water intake target is the third level of hot water (for example, 95°C), and the water temperature exceeds the hot water temperature in the hot water container 42. The water in the hot water container 42 is heated to the required temperature by the heating element 6 and then flows into the distribution head 92 through the liquid buffer chamber 91 and is distributed to the user through the distribution head 92.

[0377] In this solution, the water purifier 1000 can provide drinking water in four temperature ranges: room temperature water, first-level hot water (39-46°C), second-level hot water (82-88°C), and third-level hot water (97-99°C). The first-level hot water can be used to make milk or drink directly, the second-level hot water can be used to brew objects including but not limited to green tea or scented tea, and the third-level hot water can be used to brew objects including but not limited to black tea or white tea. When the third-level hot water (97-99°C) is needed, it is supplied by heating the second-level hot water (82-88°C) through the heating element 6, which heats quickly and allows for rapid high-temperature water extraction.

[0378] In one embodiment, if Figure 18 As shown, a first check valve 171 is provided at the connection between the water outlet of the first water channel 11 and the liquid buffer chamber 91 . The first check valve 171 is used to prevent the water in the liquid buffer chamber 91 from entering the first water channel 11 .

[0379] In one embodiment, if Figure 18 As shown, the water inlet of the clean water container 41 is connected to the first water channel 11, and the water outlet of the clean water container 41 is connected to the hot water supply channel 12 via the third water channel 16. The third water channel 16 is provided with a third pump body 22. When the liquid level in the clean water container 41 is lower than the preset clean water level and the water purifier is not turned on for water dispensing, the first pump body 21 operates, allowing the water in the first water channel 11 to flow into the clean water container 41 after being purified by the filter element assembly 3 to replenish the clean water. When the liquid level in the hot water container 42 is lower than the preset hot water level and the water purifier is not turned on for water dispensing, the third pump body 22 operates, allowing the water in the clean water container 41 to flow into the hot water supply channel 12, and after being heated by the heating element 6, it flows into the hot water container 42 through the second water channel 15 to replenish the hot water.

[0380] Furthermore, if Figure 18 As shown, the third waterway 16 is connected to the hot water supply waterway 12 via a third valve 143. Specifically, the third valve 143 is a three-way valve. The water outlet of the third valve 143 is connected to the heating element 6, the first water inlet of the third valve 143 is connected to the second hot water pipe 122, and the second water inlet of the third valve 143 is connected to the third waterway 16. Under normal circumstances, when a user draws water, the first water inlet of the third valve 143 is open and the second water inlet is closed, and hot water is supplied from the hot water container 42 to the purified water dispenser 900. However, when a user draws hot water, if there is no hot water or insufficient hot water in the hot water container 42, the first water inlet of the third valve 143 is closed and the second water inlet is opened. Under the power provided by the third pump body 22, the water in the purified water container 41 flows through the third waterway 16 into the heating element 6, and after being heated by the heating element 6, it is directly supplied to the purified water dispenser 900.

[0381] In one embodiment, the third pump body 22 is a diaphragm pump.

[0382] In one embodiment, if Figure 18 and Figure 19 As shown, the hot water container 42 is provided with a first exhaust pipe 427 , and the air outlet of the first exhaust pipe 427 is communicated with the second exhaust pipe 93 provided in the purified water dispenser 900 to ensure the pressure balance of the hot water container 42 .

[0383] Furthermore, if Figure 18 As shown, the purified water container 41 is provided with a third exhaust pipe 412 , and the air outlet of the third exhaust pipe 412 is communicated with the first exhaust pipe 427 to ensure pressure balance in the purified water container 41 .

[0384] In one embodiment, the hot water supply channel 12 is a Teflon tube with good thermal insulation performance.

[0385] In one embodiment, if Figure 18 As shown, the filter element assembly 3 includes a first filter element 31, a second filter element 32, and a third filter element 33, arranged in sequence along the water flow direction of the first waterway 11. The first filter element 31 and the second filter element 32 are used to filter and purify the water flow, and the third filter element 33 is used to inhibit microorganisms and / or improve the taste. The waterway assembly 1 includes a first wastewater waterway 181. The water inlet end of the first wastewater waterway 181 is connected to the waterway between the second filter element 32 and the third filter element 33. The first wastewater waterway 181 is used to discharge wastewater discharged from the second filter element 32.

[0386] Furthermore, if Figure 18 As shown, the waterway assembly 1 includes a second wastewater waterway 182. The water inlet end of the second wastewater waterway 182 is connected to the downstream of the third filter element 33. When the filter element assembly 3 needs to be cleaned, water enters the first waterway 11 and passes through the first filter element 31, the second filter element 32, and the third filter element 33 in sequence, cleaning the three filter elements respectively. The cleaned wastewater is discharged through the second wastewater waterway 182. A second check valve 172 is provided on the second wastewater waterway 182 to prevent external wastewater from flowing back through the second wastewater waterway 182.

[0387] In one embodiment, if Figure 19As shown, the purified water dispenser 900 includes a distribution port 923, a water outlet channel 924, and a first water retaining structure 925. The distribution port 923 is used to discharge water. The two ends of the water outlet channel 924 are respectively connected to the distribution port 923 and the water supply port of the water channel assembly 1 of the host 100. The water outlet channel 924 includes a first bottom wall 9241 and a second bottom wall 9242. The first water retaining structure 925 is provided on the bottom wall of the water outlet channel 924. The second bottom wall 9242, the first water retaining structure 925, and the first bottom wall 9241 are sequentially distributed along the direction of water flow. The first bottom wall 9241 is inclined downward in the direction toward the distribution port 923, and the second bottom wall 9242 is inclined downward in the direction away from the distribution port 923.

[0388] By adopting the above technical solution, a first water retaining structure 925 is provided on the bottom wall of the water outlet channel 924, so that a small amount of water can be retained in the water outlet channel 924 after each water withdrawal to form a liquid seal. Outside air cannot pass through the liquid seal and penetrate into the water purifier 900, thereby preventing bacteria from breeding and ensuring healthy drinking water. At the same time, by configuring the first bottom wall 9241 to tilt downwardly toward the distribution port 923, smooth water discharge is ensured. By configuring the second bottom wall 9242 to tilt downwardly away from the distribution port 923, after each water withdrawal, water in the channel located on the side of the first water retaining structure 925 away from the distribution port 923 can be easily refluxed, reducing the accumulation of stale water in the water outlet channel 924, thereby reducing the waiting time for the next hot water withdrawal and improving the accuracy of the hot water outlet temperature. In addition, the provision of the first water retaining structure 925 and the first bottom wall 9241 can also play a role in water vapor separation, preventing water from splashing due to the presence of water vapor during the water withdrawal process from the distribution port 923.

[0389] In one embodiment, if Figure 19 As shown, the second bottom wall 9242, the first water retaining structure 925 and the first bottom wall 9241 are connected in sequence. With the first water retaining structure 925 as the dividing line, the side of the first water retaining structure 925 facing the distribution port 923 can smoothly discharge water, that is, when taking water, after the water flow in the water outlet channel 924 passes over the first water retaining structure 925, it is immediately accelerated to flow toward the distribution port 923 under the guidance of the first bottom wall 9241; the side of the first water retaining structure 925 away from the distribution port 923 can promote backflow, that is, after taking water, the water flow on the side of the first water retaining structure 925 away from the distribution port 923 immediately flows back under the guidance of the second bottom wall 9242.

[0390] Furthermore, if Figure 19 As shown, the second bottom wall 9242 is higher than the first bottom wall 9241, so that water can quickly flow over the first water retaining structure 925 during the water intake process.

[0391] In one embodiment, if Figure 19As shown, the bottom wall of the water outlet channel 924 is raised upward to form a first water retaining structure 925, which is easy to process.

[0392] In one embodiment, if Figure 19 and Figure 21 As shown, the purified water dispenser 900 includes an air retaining structure 926 and a second water retaining structure 92311. The air retaining structure 926 is provided on the top wall of the water outlet channel 924, between the distribution port 923 and the first water retaining structure 925, and the second water retaining structure 92311 is located at the distribution port 923. The height h1 of the top wall of the first water retaining structure 925 is higher than the height h2 of the bottom wall of the air retaining structure 926, and h1 is configured to enable the first water retaining structure 925 to partially block the backflow of water in the water outlet channel 924, so as to form pre-stored water of a preset liquid level h3 between the first water retaining structure 925 and the second water retaining structure 92311, and h2<h3

[0393] It should be understood that if the distribution port 923 is located at one end of the water outlet channel 924 and is configured so that the small amount of water retained by the first water retaining structure 925 can directly cover the end of the distribution port 923, that is, the reserved water directly liquid-seals the distribution port 923, then there is no need to set up the air retaining structure 926.

[0394] Furthermore, if Figure 19 and Figure 21 As shown, the outer wall of the distribution port 923 constitutes the second water retaining structure 92311, and there is no need to set up a separate component as the second water retaining structure 92311, which is conducive to reducing the number of components.

[0395] In one embodiment, if Figure 19 As shown, the top wall of the water outlet channel 924 is convex downward to form an air blocking structure 926, which is easy to process.

[0396] In one embodiment, if Figures 19 to 21 ​As shown, the water outlet channel 924 includes a connected transverse channel 9243 and a vertical channel 9244. The distribution port 923 is connected to the transverse channel 9243, and the liquid buffer chamber 91 is connected to the vertical channel 9244. The first water retaining structure 925 is located in the transverse channel 9243. The purified water dispenser 900 includes a thermostat 94. The detection end of the thermostat 94 is located in the vertical channel 9244. The lowest point D2 of the detection end is located above the liquid buffer chamber 91 and below the top wall of the first water retaining structure 925. During the preheated water circulation process, the hot water in the hot water container 42 is transported to the liquid cache chamber 91 via the hot water supply water path 12 and the first connecting port 911, and the hot water in the liquid cache chamber 91 flows into the return water path 13 through the second connecting port 912. When the thermostat 94 obtains the temperature information, it indicates that the hot water in the liquid cache chamber 91 is at risk of overflowing from the third connecting port 913 of the liquid cache chamber 91 or has overflowed, then the second pump body 422 is closed, the preheated water circulation is stopped, and the water in the liquid cache chamber 91 flows back to the hot water container 42 via the return water path 13.

[0397] In addition, the thermostat 94 is also used to detect the water flow temperature during the normal water collection process. If the temperature detected by the thermostat 94 does not reach the preset value, the water flow temperature can be adjusted by adjusting the water flow rate or the mixing ratio of room temperature water and hot water, etc., so as to reach the preset value, thereby providing drinking water with the precise required temperature.

[0398] Furthermore, in one embodiment, when the preheated water circulation stops and the thermostat 94 does not obtain temperature information, it indicates that the overflow risk has been eliminated, and the second pump body 422 is turned on to resume the preheated water circulation.

[0399] In another embodiment, when the preheated water circulation is stopped for a preset time, it indicates that the overflow risk has been eliminated, and the second pump body 422 is turned on to resume the preheated water circulation.

[0400] In one embodiment, if Figure 19 As shown, the purified water dispenser 900 includes an ultraviolet sterilization element 95, which is located in the water outlet channel 924 and is disposed near the dispensing port 923. The ultraviolet sterilization element 95 is used to sterilize the liquid seal water in the water outlet channel 924 to ensure the internal hygiene of the purified water dispenser 900. Furthermore, the ultraviolet sterilization element 95 is located between the dispensing port 923 and the first water retaining structure 925, and is disposed near the dispensing port 923.

[0401] In one embodiment, if Figure 19 As shown, the distribution head 92 is generally L-shaped to form a transverse channel 9243 and a vertical channel 9244. Figure 20As shown, a second mounting portion 927 is provided at one end of the dispensing head 92 away from the dispensing port 923 ; the second mounting portion 927 is plugged into the fourth connecting port 914 of the liquid buffer cavity 91 , and a third sealing member 96 is provided at the assembly point of the two.

[0402] In one embodiment, if Figure 20 and Figure 22 As shown, the purified water distributor 900 includes a water return structure 97, and the interior of the water return structure 97 is a hollow structure to form a liquid buffer chamber 91. Setting the purified water distributor 900 as a multi-part assembly structure can reduce the complexity of a single part, avoid the complexity of the part structure causing the complication of the processing mold and the increase in processing costs.

[0403] In one embodiment, if Figure 19 、 Figure 21 and Figure 23 As shown, the distribution port 923 includes a first distribution pipe 9231, a second distribution pipe 9232, and a plug 9233. The height h4 of the first distribution pipe 9231 is higher than the height of the first water retaining structure 925. The first distribution pipe 9231 has a first water distribution inlet 92312. The height h5 of the second distribution pipe 9232 is higher than the height h4 of the first distribution pipe 9231. The outer wall of the first distribution pipe 9231 constitutes a second water retaining structure 92311. The plug 9233 is inserted into a portion of the inlet of the second distribution pipe 9232. The assembly between the plug 9233 and the second distribution pipe 9232 forms a steam exhaust gap 9234. The plug 9233 separates the inlet of the second distribution pipe 9232 into the second water distribution inlet 92321 and the steam exhaust gap 9234.

[0404] In this solution, the water outlet 923 has the following two modes:

[0405] (1) The water level in the water outlet channel 924 is h6. When h4<h6≤h5, the water in the water outlet channel 924 enters the distribution port 923 through the first water distribution inlet 92312, and the water vapor in the water outlet channel 924 enters the distribution port 923 through the second water distribution inlet 92321 and is discharged outward.

[0406] (2) When h6>h5, water in the water outlet channel 924 enters the distribution port 923 through the first water distribution inlet 92312 and the second water distribution inlet 92321. Furthermore, water vapor in the water outlet channel 924 enters the distribution port 923 through the steam exhaust gap 9234 and is then discharged outward. It should be understood that when the water flow rate is too large and too rapid, some water may enter the distribution port 923 through the steam exhaust gap 9234. However, the main function of the steam exhaust gap 9234 is to discharge water vapor from the water outlet channel 924.

[0407] In one embodiment, if Figure 19As shown, the first distribution pipe 9231 is located between the second distribution pipe 9232 and the first water retaining structure 925. In this way, when h4<h6≤h5, the water in the outlet channel 924 can first contact the first distribution pipe 9231 and enter the distribution port 923 through the first water distribution inlet 92312.

[0408] In one embodiment, if Figure 21 As shown, the distribution port 923 includes an outlet channel 9235 , and the outlets of the first distribution pipe 9231 and the second distribution pipe 9232 are respectively connected to the outlet channel 9235 , and the purified water is distributed outwardly through the outlet channel 9235 .

[0409] In one embodiment, if Figure 19 As shown, the purified water dispenser 900 includes a second exhaust pipe 93, which is located in the distribution head 92 of the purified water dispenser 900. The air outlet 931 of the second exhaust pipe 93 opens downward and is connected to the atmosphere. The first exhaust pipe 427 of the hot water container 42 is connected to the air inlet of the second exhaust pipe 93 to ensure the air pressure balance in the hot water container 42.

[0410] In one embodiment, if Figure 30 As shown, the temperature selection operating member 922 provided on the dispensing head 92 is a touch key, and the water dispensing switch 921 is a knob structure and a pressable structure. The water dispensing switch 921 is located above the touch screen. When the user dispenses water, they select the water temperature by touching the corresponding temperature selection operating member 922 and then press the water dispensing switch 921 to start water dispensing; alternatively, they select the temperature by rotating the water dispensing switch 921 and then press the water dispensing switch 921 to start water dispensing. Of course, the structure of the user temperature selection operating member 922 and the water dispensing switch 921 is not limited to this; any type of selection operating member and switch structure can be applied to this solution.

[0411] In one embodiment, if Figure 19 and Figure 23 As shown, the dispensing head 92 includes an inner core body 928 and an inner core cover 929. The inner core body 928 is provided with a groove structure 9281. The inner core cover 929 is used to seal the groove structure 9281. The inner core body 928 and the inner core cover 929 together enclose a water outlet channel 924. The first water retaining structure 925, the air retaining structure 926, and the dispensing port 923 are all integrally formed with the inner core body 928. The inner core cover 929 is provided with a first mounting seat 9291 and a second mounting seat 9292. The ultraviolet sterilization element 95 is plugged into the first mounting seat 9291, and its ultraviolet emission end is located in the water outlet channel 924. The thermostat 94 is screwed to the second mounting seat 9292, and its detection end is located in the water outlet channel 924.

[0412] In one embodiment, if Figures 24 to 28As shown, the integrated water channel component 7 includes multiple water outlets and multiple flow channels, and the multiple water outlets include a raw water inlet 721, a first filter element inlet 7221, a first filter element outlet 7222, a first pump body inlet 7231, a first pump body outlet 7232, a second filter element inlet 7241, a second filter element outlet 7242, a second filter element wastewater outlet 7243, a third filter element inlet 7251, a third filter element outlet 7252, a first clean water outlet 7261, a second clean water outlet 7262 and a wastewater outlet 727. The multiple flow channels include a first flow channel 731 connecting the raw water inlet 721 and the first filter element inlet 7221, a second flow channel 732 connecting the first filter element outlet 7222 and the first pump body inlet 7231, a third flow channel 733 connecting the first pump body outlet 7232 and the second filter element inlet 7241, a fourth flow channel 734 connecting the second filter element outlet 7242 and the third filter element inlet 7251, a fifth flow channel 735 connecting the third filter element outlet 7252 and the first clean water outlet 7261, a sixth flow channel 736 connecting the third filter element outlet 7252 and the second clean water outlet 7262, a seventh flow channel 737 connecting the second filter element waste water outlet 7243 and the waste water outlet 727, and an eighth flow channel 738 connecting the third filter element outlet 7252 and the waste water outlet 727. Among them, the raw water inlet 721 is connected to the first water channel 11 in the main unit 100 for accessing the water source, the first purified water outlet 7261 is connected to the purified water distributor 900 of the water purifier, and the second purified water outlet 7262 is connected to the purified water container 41.

[0413] Further, if Figure 26 and Figure 27 As shown, the raw water inlet 721, the first clean water outlet 7261, the second clean water outlet 7262 and the waste water outlet 727 are located at the upper part of the integrated water channel component 7, so that the corresponding water pipes in the main unit 100 can be arranged as much as possible in the upper position inside the casing 5, and the narrow space between the top wall of other components and the casing 5 can be fully utilized to arrange the water pipes.

[0414] Further, if Figure 24 、 Figure 26 and Figure 27 As shown, the raw water inlet 721, wastewater outlet 727, second clean water outlet 7262, and first clean water outlet 7261 are arranged sequentially along the width direction (i.e., second direction b) of the integrated water channel component 7. Because the filter element assembly 3 is located downstream of the raw water inlet 721 and upstream of the second clean water outlet 7262 and the first clean water outlet 7261, the positions of the raw water inlet 721, wastewater outlet 727, second clean water outlet 7262, and first clean water outlet 7261 are arranged according to the position of the filter element assembly 3 in the water channel, which helps to shorten the length of the water channel pipeline.

[0415] In one embodiment, if Figure 24As shown, the top wall of the integrated water channel component 7 is provided with a mounting pipe 78, which is connected to the raw water inlet 721, and the mounting pipe 78 is used to install a low-pressure switch (not shown in the figure), which is used to detect whether the water source is cut off.

[0416] In one embodiment, as 24 and Figure 25 As shown, the first filter element inlet 7221 and the first filter element outlet 7222 are respectively connected to the second matching valve of the first filter element 31 through the corresponding first matching valve 79, the second filter element inlet 7241, the second filter element outlet 7242 and the second filter element wastewater outlet 7243 are respectively connected to the second matching valve of the second filter element 32 through the corresponding first matching valve 79, and the third filter element inlet 7251 and the third filter element outlet 7252 are respectively connected to the second matching valve of the third filter element 33 through the corresponding first matching valve 79. Since the filter element assembly 3 is arranged at the lower position inside the casing 5, and the second filter element 32 is located above the first filter element 31 and the third filter element 33, the first filter element inlet 7221, the first filter element outlet 7222, the third filter element inlet 7251 and the third filter element outlet 7252 are arranged at the lower part of the integrated water channel component 7, and the second filter element inlet 7241, the second filter element outlet 7242 and the second filter element wastewater outlet 7243 are located in the middle part of the integrated water channel component 7, so as to facilitate the connection of the matching first matching valve with the second matching valve of the filter element.

[0417] Further, if Figure 25 As shown, the first filter element inlet 7221, the first filter element outlet 7222, the third filter element inlet 7251 and the third filter element outlet 7252 are arranged in sequence along the width direction of the integrated water channel component 7, and the second filter element inlet 7241, the second filter element outlet 7242 and the second filter element wastewater outlet 7243 are arranged in sequence along the width direction of the integrated water channel component 7 to match the position setting of the corresponding filter element.

[0418] In one embodiment, if Figure 25 As shown, since the raw water inlet 721 and the first flow channel 731 are the upstream of the entire water channel in the main unit 100, the first flow channel 731 is arranged close to the vertical side wall of the integrated water channel component 7, and the first flow channel 731 and the second flow channel 732 both extend vertically and are arranged adjacent to each other, which is conducive to the compact design of each flow channel.

[0419] Further, if Figure 25 As shown, the third flow channel 733 is U-shaped, the fourth flow channel 734 is L-shaped, the third flow channel 733 surrounds the fourth flow channel 734, and the first flow channel 731, the second flow channel 732 and the third flow channel 733 are arranged in sequence along the width direction of the integrated water channel component 7, which is conducive to the compact design of each flow channel.

[0420] Further, if Figure 25As shown, the fifth flow channel 735 extends vertically, one end of the fifth flow channel 735 is inserted downward into the U-shaped area formed by the third flow channel 733 and the end is side by side with one end of the fourth flow channel 734, and the other end of the fifth flow channel 735 extends upward, which is further conducive to the compact design of each flow channel.

[0421] In one embodiment, if Figure 18 、 Figure 25 and Figure 26 As shown, the fifth flow channel 735 is provided with a first valve interface 741, the first valve interface 741 is used to install the fourth valve 144, and the fourth valve 144 is used to control the on-off of the fifth flow channel 735. m When the water temperature is between the normal temperature T2 and the preset temperature T1 in the hot water container 42 , the fourth valve 144 is opened; otherwise, the fourth valve 144 is closed.

[0422] In one embodiment, if Figure 25 As shown, the sixth flow channel 736 is located on one side of the upper portion of the fifth flow channel 735 and extends vertically, which is beneficial to the compact design of each flow channel. Figure 18 、 Figure 25 and Figure 26 As shown, the integrated water channel component 7 includes a second valve interface 742 for mounting a fifth valve 145, which controls the opening and closing of the sixth flow channel 736. When the water level in the purified water container 41 does not reach a preset purified water level, the fifth valve 145 opens, allowing the water purified by the filter element assembly 3 to flow through the sixth flow channel 736 and enter the purified water container 41. When the water level in the purified water container 41 reaches the preset purified water level, the fifth valve 145 closes.

[0423] Further, if Figure 25 As shown, the seventh flow channel 737 extends vertically, and the seventh flow channel 737, the sixth flow channel 736 and the fifth flow channel 735 are arranged in sequence along the width direction of the integrated water channel component 7, which is conducive to the compact design of each flow channel.

[0424] Furthermore, the eighth flow channel 738 partially overlaps with the seventh flow channel 737. Specifically, the seventh flow channel 737 is used to transport wastewater discharged from the second filter element 32, and the eighth flow channel 738 is used to transport wastewater formed by cleaning the first filter element 31, the second filter element 32 and the third filter element 33. The two types of wastewater can eventually be merged into the same wastewater pipe and discharged to the outside. Therefore, the eighth flow channel 738 is configured to partially overlap with the seventh flow channel 737, and the wastewater in the eighth flow channel 738 flows to the wastewater outlet 727 through the seventh flow channel 737, which is conducive to the compact design of each flow channel.

[0425] In one embodiment, if Figure 18 、 Figure 25 and Figure 26 As shown, the eighth flow channel 738 is provided with a third valve interface 743 for mounting a sixth valve 146, which is used to control the opening and closing of the eighth flow channel 738. When the filter element assembly 3 does not need to be cleaned, the sixth valve 146 is closed. When the filter element assembly 3 needs to be cleaned, the sixth valve 146 is opened, allowing the cleaned wastewater to be discharged from the main unit 100 through the eighth flow channel 738.

[0426] In one embodiment, if Figure 18 、 Figure 25 and Figure 26 As shown, the seventh flow channel 737 is provided with a fourth valve interface 744 for mounting a seventh valve 147, which controls the opening and closing of the seventh flow channel 737. When the second filter element 32 does not need to discharge wastewater, the seventh valve 147 is closed. When the second filter element 32 needs to discharge wastewater, the seventh valve 147 is opened.

[0427] In one embodiment, if Figure 18 、 Figure 25 and Figure 26 As shown, a fifth valve interface 745 is provided on the first flow channel 731. The fifth valve interface 745 is used to install the eighth valve 148. The eighth valve 148 is used to control the opening and closing of the first flow channel 731. When the first water channel 11 of the water channel assembly 1 needs water, the eighth valve 148 is opened. When the first water channel 11 does not need water, the eighth valve 148 is closed.

[0428] In one embodiment, if Figure 18 、 Figure 25 and Figure 26 As shown, the integrated water channel component 7 includes a check valve interface 746 , which is used to install the second check valve 172 , and the second check valve 172 is used to prevent the wastewater in the eighth flow channel 738 from flowing back.

[0429] In one embodiment, if Figure 18 and Figure 28As shown, the integrated water channel component 7 includes a first TDS sensor interface 751, an NTC sensor interface 752, a second TDS sensor interface 753, and a flow meter interface 754. The first TDS sensor interface 751 is in communication with the second flow channel 732 and is used to mount a first TDS sensor 81, which is used to detect the water quality of the water flowing in the second flow channel 732. The NTC sensor interface 752 is in communication with the fourth flow channel 734 and is used to mount an NTC sensor 82, which is used to detect the water temperature of the water flowing in the fourth flow channel 734. The second TDS sensor interface 753 is in communication with the fourth flow channel 734 and is used to mount a second TDS sensor 83, which is used to detect the water quality of the water flowing in the fourth flow channel 734. The flow meter interface 754 is located downstream of the third filter element outlet 7252 . The flow meter interface 754 is used to install a flow meter 84 . The flow meter 84 is used to detect the flow rate of the water purified by the filter element assembly 3 .

[0430] In one embodiment, the cross-sectional area of ​​the flow channel is greater than or equal to 40 mm 2 , which is conducive to the smooth flow of water.

[0431] In one embodiment, if Figure 24 As shown, the integrated water channel component 7 comprises a first plate 76 and a second plate 77. The first and second plates 76 and 77 have a wall thickness of 4 mm and are welded using hot plate welding to a depth of ≥ 4 mm to ensure structural strength and withstand a pressure of 3.2 MPa. The first and second plates 76 and 77 together form multiple flow channels. The integrated water channel component 7 is configured as a split structure, facilitating the fabrication of the flow channel structure.

[0432] Further, if Figure 1 and Figure 24 As shown, the first plate 76 is located outside the second plate 77, and the first slot 71 is provided on the side of the second plate 77 away from the first plate 76. One end of the first filter element 31, the second filter element 32 and the third filter element 33 are respectively engaged with the three first slots 71 on the second plate 77, as shown in FIG. Figure 25 As shown, the first filter element inlet 7221, the first filter element outlet 7222, the first pump body inlet 7231, the first pump body outlet 7232, the second filter element inlet 7241, the second filter element outlet 7242, the second filter element wastewater outlet 7243, the third filter element inlet 7251, and the third filter element outlet 7252 are all arranged on the second plate 77. Figure 26 and Figure 27 As shown, the raw water inlet 721 , the first clean water outlet 7261 , the second clean water outlet 7262 , the waste water outlet 727 and the installation pipe 78 are all provided on the second plate 77 .

[0433] In one embodiment, if Figure 25 and Figure 26 As shown, the bends of the flow channel are all rounded to avoid residual water stains and the breeding of bacteria.

[0434] Second embodiment

[0435] The following is based on Figures 31 to 34 A water purifier according to a second embodiment of the present invention will be described in detail.

[0436] The structure of the water purifier of this embodiment is substantially the same as that of the water purifier of the first embodiment. The following mainly introduces the differences between the two embodiments.

[0437] In this embodiment, if Figures 31 to 34 As shown, the purified water dispenser 900 includes a mixing chamber 972, a liquid buffer chamber 91, and a normal-temperature water chamber 971 that are not connected to each other. The liquid buffer chamber 91 is lower than the mixing chamber 972. The outlet of the liquid buffer chamber 91 is connected to the mixing chamber 972, and the inlet of the liquid buffer chamber 91 is connected to the hot water supply waterway 12 and the return waterway 13 of the main unit 100, respectively. The outlet of the normal-temperature water chamber 971 is connected to the mixing chamber 972, and the inlet of the normal-temperature water chamber 971 is connected to the outlet of the first waterway 11 of the main unit 100.

[0438] When the purified water distributor 900 distributes normal temperature water, the water in the first water channel 11 is purified and transported to the normal temperature water chamber 971, enters the mixing water chamber 972 through the normal temperature water chamber 971, and is distributed to the outside through the distribution head 92 of the purified water distributor 900.

[0439] When the purified water dispenser 900 needs to call for hot water through the hot water supply waterway 12 , the hot water in the hot water supply waterway 12 enters the mixing water chamber 972 through the liquid buffer chamber 91 and is distributed to the outside through the distribution head 92 of the purified water dispenser 900 .

[0440] When the reflux water channel 13 is opened, the water in the liquid buffer chamber 91 enters the reflux water channel 13 and flows back to the hot water container 42 of the main unit 100 through the reflux water channel 13 .

[0441] By adopting the above technical solution, the purified water dispenser 900 is provided with three water chambers: a water mixing chamber 972, a liquid buffer chamber 91, and a normal temperature water chamber 971. When hot water is dispensed, the hot water flows to the dispenser head 92 through the liquid buffer chamber 91. When the return water channel 13 is opened, the residual water in the liquid buffer chamber 91 will flow back into the tank body 421 of the hot water container 42 through the return water channel 13, thereby reducing the amount of residual water in the purified water dispenser 900. In this way, the waiting time for hot water can be shortened when hot water is dispensed next time.

[0442] It should be understood that the water outlet and water inlet of the liquid cache chamber 91, and the water outlet and water inlet of the normal temperature water chamber 971, are all based on the water flow direction when the purified water dispenser 900 is in a normal water distribution state. For example, when the purified water dispenser 900 needs to call for hot water through the hot water supply waterway 12, the hot water in the hot water supply waterway 12 flows into the liquid cache chamber 91 from the water inlet of the liquid cache chamber 91, and then, the hot water in the liquid cache chamber 91 flows into the mixing water chamber 972 from the water outlet of the liquid cache chamber 91.

[0443] In one embodiment, if Figures 32 to 34 As shown, the purified water dispenser 900 includes a water return structure 97, which is integrally formed with a water mixing chamber 972, a liquid buffer chamber 91, and a normal temperature water chamber 971. In this solution, by adding an independent component (the water return structure) to form the water mixing chamber 972, the liquid buffer chamber 91, and the normal temperature water chamber 971, modifications to the purified water dispenser 900 can be reduced, thereby reducing processing costs.

[0444] In one embodiment, if Figure 20 、 Figure 31 and Figure 34 As shown, the distribution head 92, the mixing chamber 972, the liquid buffer chamber 91, the return water path 13, and the hot water container 42 are arranged sequentially from top to bottom. By utilizing the height difference, the residual water in the distribution head 92 can flow through the mixing chamber 972 and the liquid buffer chamber 91 in sequence, and then return to the hot water container 42 through the return water path 13. The second mounting portion 927 of the distribution head 92 is connected to the water outlet end of the mixing chamber 972, and a third sealing member 96 is provided at the assembly point between the two. It should be understood that the main difference between this embodiment and the first embodiment lies in the specific structure of the return water structure 97. The assembly structure and positional relationship of the return water structure 97 and the distribution head 92 are the same as those of the first embodiment and will not be repeated here.

[0445] In one embodiment, if Figure 31 、 Figure 32 and Figure 34 As shown, the liquid cache chamber 91 is provided with a first connecting port 911, a second connecting port 912 and a third connecting port 913. The third connecting port 913 is located above the first connecting port 911 and the second connecting port 912. The normal temperature water chamber 971 is provided with a fifth connecting port 9711 and a sixth connecting port 9712. The first connecting port 911 is connected to the hot water supply waterway 12, the second connecting port 912 is connected to the return waterway 13, the third connecting port 913 and the sixth connecting port 9712 are respectively connected to the mixing water chamber 972, and the fifth connecting port 9711 is connected to the first waterway 11.

[0446] In one embodiment, if Figure 31 and Figure 34As shown, a third check valve 173 is provided at the connection point between the normal temperature water chamber 971 and the first water channel 11 . The third check valve 173 is used to prevent the water in the purified water dispenser 900 from entering the first water channel 11 .

[0447] Furthermore, if Figure 34 As shown, the third check valve 173 is located in the water inlet end of the normal temperature water chamber 971.

[0448] In one embodiment, before the clean water dispenser 900 dispenses water, Figure 31 and Figure 34 As shown, the return water channel 13 is opened, the hot water container 42, the hot water supply water channel 12, the liquid cache chamber 91 and the return water channel 13 are connected in sequence to form a preheating circulation water channel, and the residual water in the liquid cache chamber 91 flows back to the hot water container 42 through the return water channel 13; under the power provided by the second pump body 422 of the main unit 100, a preheated water circulation is formed in the preheating circulation water channel. In this solution, since the second pump body 422 provides power for the water flow, the relative positions of the distribution head 92, the mixing water chamber 972 and the liquid cache chamber 91 are not limited to being arranged in sequence from top to bottom. A fourth check valve 174 is provided at the connection between the liquid buffer chamber 91 and the water mixing chamber 972. The fourth check valve 174 is used to prevent the water in the water mixing chamber 972 from entering the liquid buffer chamber 91 when the user has finished taking water, thereby preventing the water level in the tank of the hot water container 42 from rising and causing the risk of overflow. At the same time, the fourth check valve 174 is also used to prevent the hot water in the liquid buffer chamber 91 from flowing to the distribution head 92 when a preheated water cycle is formed in the preheating circulation water circuit, causing the distribution head 42 to overflow during the preheated water cycle stage, affecting the user experience. It should be understood that in this solution, when the water purifier 900 stops distributing water, the water in the distribution head 92 and the water mixing chamber 972 is prevented from flowing back by the fourth check valve 174, and the water in the liquid buffer chamber 91 can flow back to the hot water container 42 of the host 100 via the reflux water circuit 13.

[0449] Furthermore, when the preheated water circulation ends, the return water path 13 is blocked, preventing the residual water in the liquid buffer chamber 91 from flowing back into the hot water container 42 through the return water path 13, thereby causing the water level in the hot water container 42 to rise abnormally or even overflow.

[0450] Furthermore, if Figure 34 As shown, the fourth check valve 174 is located in the water outlet end of the liquid buffer chamber 91.

[0451] Of course, the fourth check valve 174 may not be provided at the connection point between the liquid buffer chamber 91 and the water mixing chamber 972. Figure 19As shown, by setting a thermostat 94 in the purified water dispenser 900 and limiting the lowest point D2 of the detection end of the thermostat 94 to be located above the mixing chamber 972, when the thermostat 94 obtains temperature information, it indicates that the hot water in the liquid buffer chamber 91 has entered the mixing chamber 972, and there is a risk of hot water overflowing from the mixing chamber 972 or overflow has occurred, as shown in FIG. Figure 31 As shown, the second pump body 422 is closed, the preheated water circulation is stopped, and the hot water in the mixing chamber 972 flows back into the liquid buffer chamber 91, and even further back into the hot water container 42 via the return water path 13, thereby preventing the risk of overflow in the preheated water circulation. Furthermore, in one embodiment, when the preheated water circulation stops and the thermostat 94 does not obtain temperature information, it indicates that the overflow risk has been eliminated, and the second pump body 422 is turned on to resume the preheated water circulation. In another embodiment, when the preheated water circulation stops for a predetermined period of time, it indicates that the overflow risk has been eliminated, and the second pump body 422 is turned on to resume the preheated water circulation.

[0452] Set the preset temperature value in the hot water container 42 to T1, the temperature of the normal temperature water provided by the first water channel 11 to T2, and the target temperature of the water to be taken to T m The preset temperature value T1 in the hot water container 42 is 82-88°C, preferably 85°C, which can avoid boiling water in the hot water container 42. In this embodiment, water extraction includes the following four modes:

[0453] (1) When T m =T1, the user's water intake target is the second level of hot water (for example, 85°C water), and the hot water in the hot water container 42 can be used directly. The water in the hot water container 42 flows through the hot water supply waterway 12, the liquid buffer chamber 91 and the mixing water chamber 972 in sequence and then flows into the distribution head 92, and is distributed to the user through the distribution head 92.

[0454] (2) When T m =T2, the user's water intake target is normal temperature water, and the normal temperature water in the first water channel 11 can be directly taken. The water in the first water channel 11 flows through the normal temperature water chamber 971 and the mixing water chamber 972 in turn and then flows into the distribution head 92, and is distributed to the user through the distribution head 92.

[0455] (3) When T2<T m When T1 is less than 1, the user's water target is the first level of hot water (for example, 45°C), and the water temperature is between the water temperature in the hot water container 42 and the water temperature in the first water channel 11. The water flow in the hot water container 42 and the water flow in the first water channel 11 are mixed in the mixing chamber 972. By controlling the mixing amount of the normal temperature water and the hot water, the user's desired water temperature (for example, 45°C) is achieved. That is, the mixed temperature is T m The water flows into the distribution head 92 and is distributed to users through the distribution head 92.

[0456] (4) When T m When >T1, the user's water intake target is the third level of hot water (for example, 95°C), and the water temperature exceeds the hot water temperature in the hot water container 42. The water in the hot water container 42 is heated by the heating element 6 and flows into the distribution head 92 through the liquid buffer chamber 91 and is distributed to the user through the distribution head 92.

[0457] In one embodiment, a fifth check valve 175 is provided on the sixth flow channel 736 of the integrated water channel component 7 that connects the third filter outlet 7252 and the second purified water outlet 7262 to prevent the purified water in the purified water container 41 from flowing into the first water channel 11 .

[0458] In one embodiment, if Figure 31 As shown, the third valve 143 is a two-way valve, and the third valve 143 is provided on the second hot water pipe 122 of the hot water supply circuit 12 .

[0459] It should be understood that, herein, when various height values ​​are compared, the corresponding height values ​​are height values ​​determined based on the same horizontal reference plane.

[0460] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations of the claims. Various modifications and variations may be made to the above embodiments without departing from the scope of the present disclosure. Similarly, the various technical features of the above embodiments may be arbitrarily combined to form additional embodiments of the present invention that may not be explicitly described. Therefore, the above embodiments merely illustrate several implementations of the present invention and do not limit the scope of protection of the present utility model patent.

Claims

1. A water purifier, comprising a main unit (100), characterized in that: The host (100) includes: A first waterway (11), the water inlet of which is used to connect to a water source; a first pump body (21) disposed on the first waterway (11), the first pump body (21) being used to provide power for the water flow in the first waterway (11); A filter element assembly (3) for purifying the water source, and having a length extending along a first direction (a); A clean water container (41) for storing clean water treated by the filter element assembly (3); a hot water container (42) for providing hot water; The housing (5) has a first accommodating area (521) and a second accommodating area (522) distributed in sequence in the vertical direction, the filter element assembly (3) being transversely arranged in the first accommodating area (521); the first pump body (21), the clean water container (41) and the hot water container (42) being separately arranged in the second accommodating area (522) in the first direction (a), and the clean water container (41) being configured to partially surround the first pump body (21).

2. The water purifier according to claim 1, characterized in that: The first pump body (21) is a booster pump; The first accommodating area (521) is located below the second accommodating area (522); The first pump body (21) and the hot water container (42) are both roughly cylindrical, and the first pump body (21) and the hot water container (42) are both vertically arranged in the second accommodating area (522); The first pump body (21) is completely located above the filter element assembly (3); The hot water container (42) comprises a tank body (421) and a second pump body (422) provided below the tank body (421), wherein the second pump body (422) is in communication with a first water outlet (4211) at the bottom of the tank body (421); The tank body (421) is cylindrical and is completely located above the filter element assembly (3); the projection of the second pump body (422) in the second direction (b) partially falls on the filter element assembly (3); the first direction (a) and the second direction (b) are perpendicular to each other and parallel to the horizontal plane.

3. The water purifier according to claim 1, characterized in that: The purified water container (41) is generally L-shaped so as to partially surround the first pump body (21); The first side wall (411) of the purified water container (41) facing the first pump body (21) is a curved surface, and the first side wall (411) partially surrounds the first pump body (21); The first pump body (21) is vertically arranged in the second accommodating area (522); the first pump body (21) is cylindrical; and the first side wall (411) matches the shape of the circumferential surface wall of the first pump body (21).

4. The water purifier according to claim 1, characterized in that: The first pump body (21) comprises a first motor accommodating cylinder (211) and a pump head (212), and the projection of the first motor accommodating cylinder (211) in the first direction (a) completely falls on the purified water container (41); The total projected area of ​​the first motor accommodating cylinder (211) in the second direction (b) is S1, and the projected area of ​​the first motor accommodating cylinder (211) on the water purification container (41) in the second direction (b) is S2, and S2 is greater than half of S1; the first direction (a) and the second direction (b) are perpendicular to each other and parallel to the horizontal plane.

5. The water purifier according to claim 1, characterized in that: The purified water container (41) partially surrounds the filter element assembly (3); The projection of the filter element assembly (3) in the second direction (b) partially falls on the purified water container (41); the first direction (a) and the second direction (b) are perpendicular to each other and parallel to the horizontal plane; The volume of the hot water container (42) is 1.1-1.6 times the volume of the clean water container (41); The volume of the hot water container (42) is 1.4-1.6L, and the volume of the purified water container (41) is 1.8-2.2L.

6. The water purifier according to any one of claims 1 to 5, characterized in that: The first pump body (21), the clean water container (41), and the hot water container (42) are arranged in sequence along the first direction (a); The host (100) further includes: A heating element (6) for heating the purified water; The heating element (6) is vertically arranged in the second accommodating area (522) and is located on a side of the hot water container (42) facing away from the purified water container (41); the projection of the heating element (6) in the second direction (b) partially falls on the hot water container (42); the first direction (a) and the second direction (b) are perpendicular to each other and parallel to the horizontal plane; The main unit (100) further comprises: a second water channel (15), one end of the second water channel (15) being in communication with the first water inlet (4212) of the hot water container (42), and the other end of the second water channel being in communication with the water outlet of the heating element (6); The main unit (100) comprises an integrated water channel component (7) having a plurality of flow channels provided therein, and the integrated water channel component (7) is used to sequentially connect at least part of the water channels in the main unit (100); The integrated water channel component (7) is located on a side of the first pump body (21) facing away from the purified water container (41), and the integrated water channel component (7) is arranged vertically and its width extends along a second direction (b); the first direction (a) and the second direction (b) are perpendicular to each other and parallel to a horizontal plane.

7. The water purifier according to claim 6, characterized in that: The housing (5) comprises: An outer shell (51) is used to form the outer contour structure of the host (100); An inner shell (52) is connected to the outer shell (51); the inner shell (52) is provided with a filter element seat (523) and a frame (524) connected to each other; the filter element seat (523) is provided with a first accommodating cavity, the first accommodating cavity constitutes the first accommodating area (521); the second accommodating area (522) is located in the frame (524) and above the filter element seat (523).

8. The water purifier according to claim 7, characterized in that: The front side plate (525) of the inner shell (52) is located on a side of the hot water container (42) facing away from the clean water container (41); The inner shell (52) is provided with a second accommodating chamber (5221) and a third accommodating chamber (5222); a fourth accommodating chamber (5223) is formed between the outer wall of the second accommodating chamber (5221), the outer wall of the third accommodating chamber (5222), and the outer wall of the filter element seat (523); and a fifth accommodating chamber (5224) is formed between the outer wall of the third accommodating chamber (5222) and the inner wall of the front side plate (525); The second accommodating chamber (5221), the third accommodating chamber (5222), the fourth accommodating chamber (5223) and the fifth accommodating chamber (5224) together constitute the second accommodating area (522); The first pump body (21) is disposed in the second accommodating chamber (5221), the hot water container (42) is disposed in the third accommodating chamber (5222), the purified water container (41) is disposed in the fourth accommodating chamber (5223), and the heating element (6) of the main unit (100) is disposed in the fifth accommodating chamber (5224); The cavity wall of the second accommodating cavity (5221) matches the shape of the outer wall of the first pump body (21), the cavity wall of the third accommodating cavity (5222) matches the shape of the outer wall of the hot water container (42), and the cavity wall of the fourth accommodating cavity (5223) matches the shape of the outer wall of the purified water container (41).

9. The water purifier according to claim 7, characterized in that: The filter element assembly (3) comprises a first filter element (31), a second filter element (32), and a third filter element (33) arranged in parallel with each other, the first filter element (31) and the third filter element (33) being distributed in sequence along a second direction (b), and the second filter element (32) being located above the first filter element (31) and the third filter element (33); The lowest point (D1) of the second filter element (32) is located in a space formed by the first filter element (31) and the third filter element (33) relative to each other in the second direction (b), and the lowest point (D1) is higher than the axis (O1) of the first filter element (31) and the axis (O3) of the third filter element (33); The first direction (a) and the second direction (b) are perpendicular to each other and parallel to a horizontal plane; The first filter element (31), the second filter element (32), and the third filter element (33) are arranged in an isosceles triangle; The first filter element (31) and the third filter element (33) have the same diameter, and are both smaller than the diameter of the second filter element (32); The axial distance between the first filter core (31) and the third filter core (33) is smaller than the diameter of the second filter core (32).

10. The water purifier according to claim 9, characterized in that: The first accommodating area (521) comprises: A first filter element accommodating chamber (5211) for accommodating the first filter element (31); A second filter element accommodating chamber (5212) for accommodating the second filter element (32); A third filter element accommodating chamber (5213), used for accommodating the third filter element (33); The walls of the first filter element accommodating chamber (5211), the second filter element accommodating chamber (5212), and the third filter element accommodating chamber (5213) are connected end to end in sequence to form the first accommodating area (521); The cavity wall of the first filter element accommodating cavity (5211) matches the circumferential surface wall of the first filter element (31) in shape, and the first filter element accommodating cavity (5211) surrounds more than half of the circumference of the first filter element (31); The cavity wall of the second filter element accommodating cavity (5212) matches the circumferential surface wall of the second filter element (32) in shape, and the second filter element accommodating cavity (5212) surrounds more than half of the circumference of the second filter element (32); The cavity wall of the third filter element accommodating cavity (5213) matches the circumferential surface wall of the third filter element (33) in shape, and the third filter element accommodating cavity (5213) surrounds more than half of the circumference of the third filter element (33); The outer wall and inner wall of the filter element seat (523) have substantially the same profile; The front side plate (525) of the inner shell (52) is located on a side of the hot water container (42) facing away from the clean water container (41); The front side plate (525) is provided with three openings (5251), and the three openings (5251) are respectively connected to the first filter element accommodating chamber (5211), the second filter element accommodating chamber (5212), and the third filter element accommodating chamber (5213); the first filter element (31), the second filter element (32), and the third filter element (33) are respectively assembled through the corresponding openings (5251); The main unit (100) comprises an integrated water channel component (7) having a plurality of flow channels provided therein, and the integrated water channel component (7) is used to sequentially connect the water channels in the main unit (100); The integrated water channel component (7) is located on a side of the first pump body (21) facing away from the purified water container (41), and the integrated water channel component (7) is provided with three first slots (71), wherein first matching valves (79) are provided in the first slots (71); The head end of each filter element of the filter element assembly (3) is respectively engaged with the corresponding opening (5251) and the tail end is respectively engaged with the corresponding first engaging groove (71), and the second matching valve of each filter element is plugged into and matched with the corresponding first matching valve (79).

11. The water purifier according to claim 10, characterized in that: Each filter element of the filter element assembly (3) is equipped with a matching locking assembly (34) and an unlocking member (35), wherein the locking assembly (34) is used to lock the corresponding filter element to the inner housing (52); and the unlocking member (35) is used to unlock the locking assembly (34) to disassemble and install the corresponding filter element. The unlocking member (35) is movably connected to the corresponding filter element, and the locking assembly (34) includes: A locking member (341) movably connected to the front side plate (525), wherein the locking member (341) has a locking position and an unlocking position; an elastic member (342) which applies an elastic force to the locking member (341) so that the locking member (341) remains in a locked position; When the locking member (341) is located in the locking position, the locking member (341) can restrict the extraction of the corresponding filter element, thereby achieving locking; when the locking member (341) is located in the unlocking position, the locking member (341) releases the restriction; The unlocking member (35) can move under an external force to drive the locking member (341) to overcome the elastic force, so that the locking member (341) moves to the unlocking position.

12. The water purifier according to claim 11, characterized in that: When the locking member (341) is located in the locking position, the locking member (341) is at least partially located on the extraction path of the corresponding filter element, thereby achieving locking; when the locking member (341) is located in the unlocking position, the locking member (341) leaves the extraction path; The locking member (341) is a lock buckle, and the locking assembly (34) further includes a buckle groove (343) provided on the corresponding filter element; When the locking member (341) is located in the locking position, the locking member (341) is buckled in the buckling groove (343); when the locking member (341) is located in the unlocking position, the locking member (341) is disengaged from the buckling groove (343); The locking member (341) is mounted on a side of the front side plate (525) facing away from the hot water container (42) via a pivot shaft (344); the locking member (341) rotates around the pivot shaft (344) to switch between the locking position and the unlocking position; Each filter element is provided with a filter element end cover (36), and the filter element end cover (36) is provided with a first groove (361); the unlocking member (35) comprises a handle portion (351) and a first mounting portion (352), and the first mounting portion (352) is rotatably connected to the first groove (361); The first mounting portion (352) is provided with a buckling surface (3521), and the buckling surface (3521) and the groove wall of the first groove (361) form the buckling groove (343); The locking member (341) comprises a locking protrusion (3411), and the locking protrusion (3411) is buckled to the buckling surface (3521); The first mounting portion (352) is provided with a pushing surface (3522). When the unlocking member (35) rotates under an external force and the engaging surface (3521) disengages from the locking protrusion (3411), the pushing surface (3522) pushes the locking protrusion (3411) to cause the locking member (341) to leave the locking position.

13. The water purifier according to claim 12, characterized in that: Two locking members (341) are disposed on both radial sides of each filter element; The two locking members (341) located between the first filter core (31) and the third filter core (33) are pivotally connected to the same pivot shaft (344).

14. The water purifier according to any one of claims 1 to 5, characterized in that: The hot water container (42) comprises: A tank body (421) is provided with a water storage cavity (4213) and a first water outlet (4211) connected to the bottom of the water storage cavity (4213); The second pump body (422) is arranged transversely below the tank body (421), and comprises a second water outlet (4221), a pump chamber (4222), and a second water inlet (4223) which are connected in sequence; the second water inlet (4223) is connected to the first water outlet (4211), and the second water outlet (4221) is located at the top of the pump chamber (4222).

15. The water purifier according to claim 14, characterized in that: The second pump body (422) includes a water outlet pipe (4224), which together with the communication port of the pump chamber (4222) forms the second water outlet (4221); the water outlet pipe (4224) is inclined upward from the second water outlet (4221); The angle between the water outlet pipe (4224) and the horizontal plane is 5°-20°.

16. The water purifier according to claim 14, characterized in that: The second pump body (422) comprises a front end cover (4225) and a second motor accommodating cylinder (4226), and the second water outlet (4221) and the second water inlet (4223) are provided on the front end cover (4225); The outer periphery of the front end cover (4225) is provided with a plurality of first protrusions (42251), and the outer periphery of the second motor accommodating cylinder (4226) is provided with a plurality of second protrusions (42261), wherein the first protrusions (42251) and the second protrusions (42261) are arranged in a one-to-one correspondence and are connected by fasteners; The second pump body (422) includes a water outlet pipe (4224), which together with the communication port of the pump chamber (4222) forms the second water outlet (4221); The second water outlet (4221) is located below the first raised portion (42251) at the highest point, and the water outlet pipe (4224) does not protrude from the first raised portion (42251).

17. The water purifier according to claim 14, characterized in that: The second pump body (422) is provided with a retaining rib (4227), which is provided at the second water inlet (4223); the retaining rib (4227) achieves water vapor separation by breaking up the hot water flow entering the second water inlet (4223); The hot water container (42) includes a pump fixing frame (423), and the second pump body (422) is installed on the bottom of the tank body (421) through the pump fixing frame (423); The pump fixing frame (423) comprises a support frame (4231) and a transfer pipe (4232); the second pump body (422) is arranged on the support frame (4231); and both ends of the transfer pipe (4232) are respectively connected to the first water outlet (4211) and the second water inlet (4223); The second pump body (422) includes a water inlet pipe (4228), the water inlet pipe (4228) is plugged into one end of the adapter pipe (4232), and a first sealing member (424) is provided at the assembly point of the two. The other end of the transfer pipe (4232) is plugged into the first water outlet (4211), and a second sealing member (425) is provided at the assembly point between the two. The support frame (4231) is an open structure, which half surrounds the second pump body (422).

18. The water purifier according to claim 14, characterized in that: The outer periphery of the second pump body (422) is provided with a shock absorbing component (426); The second pump body (422) is located at the bottom of the tank body (421) and is arranged close to one side of the tank body (421), so that the projection of the second pump body (422) in the second direction (b) partially falls on the filter element assembly (3); The first direction (a) and the second direction (b) are perpendicular to each other and parallel to a horizontal plane; The second pump body (422) is an impeller pump; The tank body (421) is provided with a heat-insulating structure (4214), and the heat-insulating structure (4214) circumferentially surrounds the water storage cavity (4213); The tank body (421) is a double-layer vacuum structure, and the double-layer vacuum structure constitutes the heat-insulating structure (4214); A liquid level detection mechanism (4215) is provided in the tank body (421) for obtaining liquid level information of the water storage chamber (4213); The liquid level detection mechanism (4215) comprises: an upper float (42151), which is located in the water storage chamber (4213) and can float up and down between a first position and a second position; a lower float (42152), which is located in the water storage chamber (4213) and below the upper float (42151), and is capable of floating up and down between a third position and a fourth position; A liquid level sensor, which obtains liquid level information of the water storage chamber (4213) by obtaining position information of the upper float (42151) and the lower float (42152) in the up and down directions; A mounting post (4216) is provided in the tank body (421) and is parallel to the axis of the tank body (421); the upper float (42151) and the lower float (42152) are respectively movably mounted on the mounting post (4216); The outer periphery of the mounting column (4216) is provided with four limiting members (4217), and the first position, the second position, the third position and the fourth position are respectively defined by the four limiting members (4217); The mounting column (4216) has a hollow portion, and the liquid level sensor is mounted in the hollow portion; A temperature sensor (4218) is provided in the tank body (421) for obtaining water temperature information in the water storage chamber (4213).

19. The water purifier according to any one of claims 1 to 5, characterized in that: The water purifier further comprises a purified water distributor (900), which is located outside the main unit (100) and is used to distribute water to the outside. The main unit (100) comprises a water channel assembly (1), and the water channel assembly (1) comprises: a hot water supply water path (12), the two ends of which are respectively connected to the purified water distributor (900) and the hot water container (42); hot water in the hot water container (42) flows into the purified water distributor (900) through the hot water supply water path (12) and is distributed via the purified water distributor (900); A return water channel (13), the two ends of which are respectively connected to the purified water distributor (900) and the hot water container (42); When the return water channel (13) is opened, at least part of the water in the purified water distributor (900) flows back into the hot water container (42) through the return water channel (13).

20. The water purifier according to claim 19, characterized in that: The water channel assembly (1) comprises a first valve (141) which is arranged on the return water channel (13), and the first valve (141) is used to block or open the return water channel (13); The water purifier comprises a second pump body (422), which is arranged on the hot water supply water path (12) and is used to pump water out of the hot water container (42); The purified water dispenser (900) comprises a liquid buffer chamber (91) and a distribution head (92) that are connected to each other, wherein the liquid buffer chamber (91) is used to temporarily store liquid; The hot water supply water path (12) is connected to the liquid buffer chamber (91), and the hot water in the hot water supply water path (12) flows into the distribution head (92) via the liquid buffer chamber (91).

21. The water purifier according to claim 20, characterized in that: The reflux waterway (13) is in communication with the liquid buffer chamber (91); Before the purified water dispenser (900) distributes water, the hot water container (42), the hot water supply waterway (12), the liquid buffer chamber (91), and the return waterway (13) are sequentially connected to form a preheating circulation waterway; under the power provided by the second pump body (422), a preheated water circulation is formed in the preheating circulation waterway; When the opening condition of the return waterway (13) is reached, the return waterway (13) is opened, and the water in the liquid buffer chamber (91) flows back into the hot water container (42) through the return waterway (13); The opening conditions include: the start of preheating water circulation; When the closing condition of the return water path (13) is reached, the return water path (13) is blocked; the closing condition includes: the preheated water circulation ends.

22. The water purifier according to claim 20, characterized in that: When the purified water dispenser (900) dispenses water, the return water path (13) is blocked; When the purified water dispenser (900) stops distributing hot water, the return water path (13) opens, and the water in the liquid buffer chamber (91) flows back into the hot water container (42) through the return water path (13); The liquid buffer chamber (91), the return waterway (13), and the hot water container (42) are arranged in sequence from top to bottom.

23. The water purifier according to claim 21, characterized in that: The distribution head (92) includes a trigger element and a water intake switch (921); When the trigger element is operated and the water intake switch (921) is in a non-open state, the second pump body (422) operates to start the preheated water circulation; The dispensing head (92) includes a temperature selection operating member (922), and the temperature selection operating member (922) constitutes the trigger element; The preheating water cycle is configured such that the preheating water cycle is performed for 3-5 seconds so that the temperature of the hot water in the hot water supply water path (12) reaches a preset temperature value; The temperature selection operating element (922) and the water intake switch (921) are touch buttons or mechanical buttons or knobs; The upper surface of the dispensing head (92) is a touch screen, and the touch screen includes an indicator light; When the touch screen is in an initial state, the indicator light is half lit; when the touch screen is touched, the indicator light is fully lit.

24. The water purifier according to claim 21, characterized in that The liquid cache cavity (91) comprises a first communication port (911), a second communication port (912), and a third communication port (913); the first communication port (911) and the second communication port (912) are located below the third communication port (913); The hot water supply water path (12) is connected to the first communication port (911), and the return water path (13) is connected to the second communication port (912); one end of the distribution head (92) is provided with a distribution port (923), and the other end thereof is connected to the third communication port (913); The liquid buffer chamber (91) further comprises a fourth communication port (914); the main unit (100) comprises a first waterway (11) and a filter element assembly (3); the filter element assembly (3) is arranged on the first waterway (11); the water inlet of the first waterway (11) is used to connect to a water source, and the water outlet thereof is in communication with the fourth communication port (914); The purified water distributor (900) comprises a water return structure (97), the interior of which is a hollow structure to form the liquid buffer chamber (91).

25. The water purifier according to claim 24, characterized in that: The purified water distributor (900) further comprises a water mixing chamber (972) and a normal temperature water chamber (971), wherein the normal temperature water chamber (971) and the liquid buffer chamber (91) are not connected to each other; the third communication port (913), the water mixing chamber (972) and the distribution head (92) are connected in sequence; the hot water in the hot water supply waterway (12) enters the water mixing chamber (972) via the liquid buffer chamber (91) and is distributed to the outside via the distribution head (92); The normal temperature water chamber (971) comprises a fifth communication port (9711) and a sixth communication port (9712), the sixth communication port (9712) being in communication with the water mixing chamber (972), and the fifth communication port (9711) being in communication with the water outlet end of the first water channel (11), so that the purified normal temperature water in the first water channel (11) can enter the water mixing chamber (972) via the normal temperature water chamber (971); The purified water distributor (900) comprises a water return structure (97), which is integrally formed with the water mixing chamber (972), the liquid buffer chamber (91), and the normal temperature water chamber (971); The distribution port (923), the water mixing chamber (972), the liquid buffer chamber (91), the return water channel (13), and the hot water container (42) are arranged in sequence from top to bottom.

26. The water purifier according to claim 21, characterized in that The water purifier comprises a heating element (6) which is arranged on the hot water supply waterway (12); the second pump body (422) is located on the waterway between the hot water container (42) and the heating element (6); The waterway assembly (1) comprises: A second water channel (15), the water outlet of which is in communication with the hot water container (42); A second valve (142), a first water outlet end of which is in communication with the first hot water pipe (121) of the hot water supply water path (12), a second water outlet end of which is in communication with the second water path (15), and a water inlet end of which is in communication with the heating element (6); the first hot water pipe (121) is in communication with the liquid buffer chamber (91); When the water temperature in the hot water container (42) does not reach a preset value and the water purifier is not turned on to take water, the first water outlet is in a closed state, the second water outlet is in an open state, the heating element (6) and the second pump body (422) are turned on, and the water in the hot water container (42) is heated by the heating element (6) and then circulates through the second water path (15) into the hot water container (42), forming a heating circulation water path, so that the water temperature in the hot water container (42) reaches the preset value; The filter element assembly (3) is arranged on the first water channel (11), and the water outlet end of the first water channel (11) is connected to the purified water distributor (900) to supply purified water at room temperature.

27. The water purifier according to claim 26, characterized in that: The water outlet end of the first water channel (11) is in communication with the fourth communication port (914) of the liquid buffer chamber (91); When T m =T1, the water in the hot water container (42) flows into the distribution head (92) via the hot water supply channel (12) and the liquid buffer chamber (91) in sequence; When T m =T2, the water in the first water channel (11) flows into the distribution head (92) via the liquid buffer chamber (91); When T2<T m When T<T1, the water flow in the hot water container (42) and the water flow in the first water channel (11) are mixed in the liquid buffer chamber (91) to obtain a liquid with a temperature of T m The water flow then flows into the distribution head (92); When T m >T1, the water in the hot water container (42) is heated by the heating element (6) and then flows into the distribution head (92) through the liquid buffer chamber (91); The preset temperature value in the hot water container (42) is T1, the temperature of the normal temperature water provided by the first water channel (11) is T2, and the target temperature of the water is T m ; The T1 is 82-88°C; A first check valve (171) is provided at the connection point between the water outlet end of the first water channel (11) and the liquid buffer chamber (91). The first check valve (171) is used to prevent the water flow in the liquid buffer chamber (91) from entering the first water channel (11).

28. The water purifier according to claim 26, characterized in that: The purified water distributor (900) further comprises a water return structure (97) and a water mixing chamber (972); the water return structure (97) is provided with a normal temperature water chamber (971) and the liquid buffer chamber (91) which are not connected to each other; the water outlet end of the normal temperature water chamber (971) and the water outlet end of the liquid buffer chamber (91) are respectively connected to the water mixing chamber (972); the water outlet end of the first water channel (11) is connected to the water inlet end of the normal temperature water chamber (971); When T m =T1, the water in the hot water container (42) flows sequentially through the hot water supply channel (12), the liquid buffer chamber (91), and the water mixing chamber (972) before flowing into the distribution head (92); When T m = T2, the water flow in the first water channel (11) flows into the distribution head (92) after passing through the normal temperature water chamber (971) and the mixing water chamber (972) in sequence; When T2<T m When T<T1, the water flow in the hot water container (42) and the water flow in the first water channel (11) are mixed in the water mixing chamber (972) to obtain a water temperature of T m The water flow then flows into the distribution head (92); When T m >T1, the water in the hot water container (42) is heated by the heating element (6) and then flows into the distribution head (92) through the liquid buffer chamber (91); The preset temperature value in the hot water container (42) is T1, the temperature of the normal temperature water provided by the first water channel (11) is T2, and the target temperature of the water is T m ; A third check valve (173) is provided at the connection point between the normal temperature water chamber (971) and the first water channel (11), and the third check valve (173) is used to prevent water in the purified water distributor (900) from entering the first water channel (11); The third check valve (173) is located in the water inlet end of the normal temperature water chamber (971); A fourth check valve (174) is provided at the connection point between the liquid cache chamber (91) and the water mixing chamber (972); the fourth check valve (174) is used to prevent water in the water mixing chamber (972) from entering the liquid cache chamber (91), and to prevent hot water in the liquid cache chamber (91) from flowing toward the distribution head (92) when a preheated water circulation is formed in the preheating circulation water circuit. The fourth check valve (174) is located in the water outlet end of the liquid buffer chamber (91). The T1 is 82-88°C.

29. The water purifier according to claim 26, characterized in that The water inlet of the water purification container (41) is connected to the first water path (11), and the water outlet is connected to the hot water supply path (12) via a third water path (16). A third pump body (22) is provided on the third water path (16); When the liquid level in the purified water container (41) is lower than a preset purified water level value and the water purifier is not turned on to take water, the first pump body (21) operates so that the water in the first waterway (11) flows into the purified water container (41) after being purified by the filter element assembly (3) to replenish purified water; When the liquid level in the hot water container (42) is lower than a preset hot water level value and the water purifier is not turned on to take water, the third pump body (22) operates to allow the water in the purified water container (41) to flow into the hot water supply water path (12), and then flow into the hot water container (42) after being heated by the heating element (6) to replenish hot water; The third water path (16) is connected to the hot water supply path (12) via a third valve (143); The third pump body (22) is a diaphragm pump; The hot water container (42) is provided with a first exhaust pipe (427), and the air outlet of the first exhaust pipe (427) is in communication with a second exhaust pipe (93) provided on the purified water distributor (900); The water purification container (41) is provided with a third exhaust pipe (412), and the air outlet of the third exhaust pipe (412) is in communication with the first exhaust pipe (427); The hot water supply water channel (12) is a Teflon tube.

30. The water purifier according to claim 26, characterized in that The filter element assembly (3) comprises a first filter element (31), a second filter element (32), and a third filter element (33) which are sequentially arranged along the water flow direction of the first water channel (11); the first filter element (31) and the second filter element (32) are used to filter and purify the water flow; and the third filter element (33) is used to inhibit microorganisms and / or improve taste; The water channel assembly (1) comprises a first wastewater water channel (181), the water inlet end of which is connected to the water channel between the second filter element (32) and the third filter element (33), and the first wastewater water channel (181) is used to discharge wastewater discharged from the second filter element (32); The water channel assembly (1) comprises a second wastewater water channel (182), the water inlet end of which is connected to the downstream of the third filter element (33), and the second wastewater water channel (182) is used to discharge wastewater generated when cleaning the filter element assembly (3).

31. The water purifier according to claim 21, characterized in that The water purifier further comprises a purified water dispenser (900), which is located outside the main unit (100) and is used to distribute water to the outside, and comprises: a distribution port (923) for discharging water; A water outlet channel (924), the two ends of which are respectively connected to the distribution port (923) and the water supply port of the water channel assembly (1) of the main unit (100), and the water outlet channel (924) comprises a first bottom wall (9241) and a second bottom wall (9242); a first water retaining structure (925) provided on the bottom wall of the water outlet channel (924); The second bottom wall (9242), the first water retaining structure (925), and the first bottom wall (9241) are sequentially distributed along the direction of water flow; the first bottom wall (9241) is inclined downward in a direction toward the distribution opening (923), and the second bottom wall (9242) is inclined downward in a direction away from the distribution opening (923).

32. The water purifier according to claim 31, characterized in that The second bottom wall (9242), the first water retaining structure (925), and the first bottom wall (9241) are connected in sequence; The second bottom wall (9242) is higher than the first bottom wall (9241); The bottom wall of the water outlet channel (924) is raised upward to form the first water retaining structure (925); The purified water dispenser (900) comprises an air retaining structure (926) and a second water retaining structure (92311); the air retaining structure (926) is provided on the top wall of the water outlet channel (924) and is located between the distribution port (923) and the first water retaining structure (925); the second water retaining structure (92311) is located at the distribution port (923); The height h1 of the top wall of the first water retaining structure (925) is higher than the height h2 of the bottom wall of the air retaining structure (926), and h1 is configured to enable the first water retaining structure (925) to partially block the backflow of water in the water outlet channel (924), so as to form pre-stored water of a preset liquid level h3 between the first water retaining structure (925) and the second water retaining structure (92311); Wherein, h2<h3<h1, so that the pre-stored water forms a water seal at the air blocking structure (926), thereby preventing the exchange of gas on both sides of the air blocking structure (926); The outer wall of the distribution port (923) constitutes the second water retaining structure (92311); The top wall of the water outlet channel (924) is convex downward to form the air blocking structure (926).

33. The water purifier according to claim 31, characterized in that The water outlet channel (924) comprises a horizontal channel (9243) and a vertical channel (9244) that are connected to each other; the distribution port (923) is connected to the horizontal channel (9243); and the liquid buffer cavity (91) is connected to the vertical channel (9244); The first water retaining structure (925) is located in the transverse channel (9243); the purified water dispenser (900) includes a temperature controller (94), a detection end of which is located in the vertical channel (9244), and the lowest point (D2) of the detection end is located above the liquid buffer chamber (91) and below the top wall of the first water retaining structure (925); During the preheated water circulation process, when the thermostat (94) obtains temperature information, the second pump body (422) is closed to stop the preheated water circulation, and the water in the liquid buffer chamber (91) flows back to the hot water container (42) via the return water path (13); When the preheated water circulation stops and the thermostat (94) does not obtain temperature information, the second pump body (422) is turned on to resume the preheated water circulation; When the preheated water circulation stops for a predetermined period of time, the second pump body (422) is turned on to resume the preheated water circulation; The purified water dispenser (900) comprises an ultraviolet sterilization element (95), which is located in the water outlet channel (924) and is arranged near the dispensing port (923); The purified water distributor (900) comprises a distribution head (92) and a water return structure (97); the water outlet channel (924) and the distribution port (923) are located in the distribution head (92); and the water return structure (97) is formed with the liquid buffer cavity (91); The distribution head (92) is generally L-shaped, and a second mounting portion (927) is provided at one end of the distribution head (92) away from the distribution port (923); the second mounting portion (927) is plugged into the water return structure (97), and a third sealing member (96) is provided at the assembly point between the two.

34. The water purifier according to claim 31, characterized in that The dispensing port (923) comprises: A first distribution pipe (9231), whose height h4 is higher than the height of the first water retaining structure (925), and which has a first water distribution inlet (92312); The second distribution pipe (9232) has a height h5 higher than h4; a plug (9233) inserted into a portion of the inlet of the second distribution pipe (9232), and forming a steam exhaust gap (9234) at the assembly point of the two, wherein the plug (9233) separates the inlet of the second distribution pipe (9232) into a second water distribution inlet (92321) and a steam exhaust gap (9234); The water level in the water outlet channel (924) is h6. When h4<h6≤h5, the water in the water outlet channel (924) enters the distribution port (923) through the first water distribution inlet (92312), and the water vapor in the water outlet channel (924) enters the distribution port (923) through the second water distribution inlet (92321) and is then discharged. When h6>h5, the water in the water outlet channel (924) enters the distribution port (923) through the first water distribution inlet (92312) and the second water distribution inlet (92321), and the water vapor in the water outlet channel (924) enters the distribution port (923) through the steam exhaust gap (9234) and is then discharged; The distribution port (923) includes an outlet channel (9235), and the outlets of the first distribution pipe (9231) and the second distribution pipe (9232) are respectively connected to the outlet channel (9235), and the purified water is distributed outward through the outlet channel (9235); The purified water distributor (900) comprises a second exhaust pipe (93), which is located in the distribution head (92) of the purified water distributor (900), and the opening of the air outlet (931) of the second exhaust pipe (93) faces downward; The upper surface of the distribution head (92) of the purified water distributor (900) is a touch screen, and the touch screen is provided with a temperature selection operating element (922). The distribution head (92) includes a water intake switch (921) in a knob structure, and the water intake switch (921) is located above the touch screen.

35. The water purifier according to any one of claims 1 to 5, characterized in that: The main unit (100) includes an integrated water channel component (7), and the integrated water channel component (7) includes: a plurality of water inlets, including a raw water inlet (721), a first filter element inlet (7221), a first filter element outlet (7222), a first pump body inlet (7231), a first pump body outlet (7232), a second filter element inlet (7241), a second filter element outlet (7242), a second filter element wastewater outlet (7243), a third filter element inlet (7251), a third filter element outlet (7252), a first clean water outlet (7261), a second clean water outlet (7262), and a wastewater outlet (727); A plurality of flow channels, including a first flow channel (731) connecting the raw water inlet (721) and the first filter element inlet (7221), a second flow channel (732) connecting the first filter element outlet (7222) and the first pump body inlet (7231), a third flow channel (733) connecting the first pump body outlet (7232) and the second filter element inlet (7241), a fourth flow channel (734) connecting the second filter element outlet (7242) and the third filter element inlet (7251), and a fourth flow channel (735) connecting the second filter element outlet (7242) and the third filter element inlet (7251). 4), a fifth flow channel (735) connecting the third filter cartridge outlet (7252) and the first clean water outlet (7261), a sixth flow channel (736) connecting the third filter cartridge outlet (7252) and the second clean water outlet (7262), a seventh flow channel (737) connecting the second filter cartridge wastewater outlet (7243) and the wastewater outlet (727), and an eighth flow channel (738) connecting the third filter cartridge outlet (7252) and the wastewater outlet (727); The raw water inlet (721) is used to access external tap water, the first purified water outlet (7261) is connected to the purified water distributor (900) of the water purifier, and the second purified water outlet (7262) is connected to the purified water container (41).

36. The water purifier according to claim 35, characterized in that The raw water inlet (721), the first clean water outlet (7261), the second clean water outlet (7262), and the waste water outlet (727) are located at the upper portion of the integrated water channel component (7); The raw water inlet (721), the waste water outlet (727), the second clean water outlet (7262), and the first clean water outlet (7261) are arranged in sequence along the width direction of the integrated water channel component (7); The filter element assembly (3) comprises a first filter element (31), a second filter element (32), and a third filter element (33) which are sequentially arranged along the water flow direction of the first water channel (11); the first filter element (31) and the second filter element (32) are used to filter and purify the water flow; and the third filter element (33) is used to inhibit microorganisms and / or improve taste; The first filter element inlet (7221) and the first filter element outlet (7222) are respectively connected to the first filter element (31); the second filter element inlet (7241), the second filter element outlet (7242) and the second filter element wastewater outlet (7243) are respectively connected to the second filter element (32); and the third filter element inlet (7251) and the third filter element outlet (7252) are respectively connected to the third filter element (33); The first filter element inlet (7221), the first filter element outlet (7222), the third filter element inlet (7251) and the third filter element outlet (7252) are located at the lower part of the integrated waterway component (7); the second filter element inlet (7241), the second filter element outlet (7242) and the second filter element wastewater outlet (7243) are located at the middle part of the integrated waterway component (7); The first filter element inlet (7221), the first filter element outlet (7222), the third filter element inlet (7251) and the third filter element outlet (7252) are arranged in sequence along the width direction of the integrated water channel component (7); the second filter element inlet (7241), the second filter element outlet (7242) and the second filter element wastewater outlet (7243) are arranged in sequence along the width direction of the integrated water channel component (7); The first flow channel (731) is arranged close to a vertical side wall of the integrated water channel component (7), and the first flow channel (731) and the second flow channel (732) both extend vertically and are arranged adjacent to each other; The third flow channel (733) is U-shaped, the fourth flow channel (734) is L-shaped, and the third flow channel (733) surrounds the fourth flow channel (734); the first flow channel (731), the second flow channel (732), and the third flow channel (733) are arranged in sequence along the width direction of the integrated water channel component (7).

37. The water purifier according to claim 36, characterized in that The fifth flow channel (735) extends vertically, with one end inserted downward into the U-shaped area formed along the third flow channel (733), and the other end extending upward; The fifth flow channel (735) is provided with a first valve interface (741), the first valve interface (741) is used to install a fourth valve (144), and the fourth valve (144) is used to control the opening and closing of the fifth flow channel (735); The sixth flow channel (736) is located on one side of the upper portion of the fifth flow channel (735) and extends vertically; The integrated water channel component (7) comprises a second valve interface (742), the second valve interface (742) being used to install a fifth valve (145), the fifth valve (145) being used to control the on / off of the sixth flow channel (736); The seventh flow channel (737) extends vertically, and the seventh flow channel (737), the sixth flow channel (736), and the fifth flow channel (735) are arranged in sequence along the width direction of the integrated water channel component (7); The eighth flow channel (738) partially overlaps with the seventh flow channel (737); The eighth flow channel (738) is provided with a third valve interface (743), the third valve interface (743) is used to install a sixth valve (146), and the sixth valve (146) is used to control the on-off of the eighth flow channel (738); A fourth valve interface (744) is provided on the seventh flow channel (737), and the fourth valve interface (744) is used to install a seventh valve (147), and the seventh valve (147) is used to control the opening and closing of the seventh flow channel (737).

38. The water purifier according to claim 35, characterized in that A fifth valve interface (745) is provided on the first flow channel (731), and the fifth valve interface (745) is used to install an eighth valve (148), and the eighth valve (148) is used to control the opening and closing of the first flow channel (731); The integrated water channel component (7) includes a check valve interface (746), the check valve interface (746) is used to install a second check valve (172), and the second check valve (172) is used to prevent wastewater in the eighth flow channel (738) from flowing back. The integrated water channel component (7) comprises: a first TDS sensor interface (751), which is in communication with the second flow channel (732); an NTC sensor interface (752) communicating with the fourth flow channel (734); a second TDS sensor interface (753), which is in communication with the fourth flow channel (734); A flow meter interface (754) located downstream of the third filter element outlet (7252); The cross-sectional area of ​​the flow channel is greater than or equal to 40 mm 2 ; The integrated water channel component (7) comprises a first plate body (76) and a second plate body (77); the first plate body (76) and the second plate body (77) are welded together to form the plurality of flow channels.

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