Water purifier

Abstract

The utility model relates to a water purifier which comprises a main machine, and the main machine comprises a machine shell provided with a first containing area; the filter element assembly is transversely arranged in the first containing area and used for purifying water flow; the integrated water path component is internally provided with a plurality of flow channels and a plurality of water passing openings and is used for communicating at least part of water paths in the main machine in sequence; the integrated waterway component is vertically arranged on one side of the filter element assembly; wherein the integrated waterway component is provided with a first matching valve, and one end of the filter element assembly is provided with a second matching valve; one end of the filter element assembly is installed on the integrated waterway component, and the first matching valve is matched with the second matching valve in an inserted mode. According to the water purifier disclosed by the utility model, the position relation and the assembly relation of the integrated water path component and the filter element component are optimized, so that the integrated water path component is communicated with the filter element component, and meanwhile, the miniaturization design of the water purifier is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to water purifier technical field, especially a kind of water purifier. BACKGROUND

[0002] The integrated water purifier is a water purifier integrating water purification and heating functions, which eliminates the step of boiling water after connecting to the purified water, and allows the pure hot water to be immediately available for drinking, making it safer, healthier and more convenient to drink hot water.

[0003] The integrated waterway plate is an important component in the waterway system of the water purifier. SUMMARY

[0004] To overcome the above-mentioned defects in the prior art, the utility model aims to provide a water purifier, which optimizes the positional relationship and assembly relationship between the integrated waterway component and the filter cartridge assembly, and realizes the communication between the integrated waterway component and the filter cartridge assembly while facilitating the miniaturization design of the water purifier.

[0005] To this end, the utility model provides the following technical scheme.

[0006] The utility model provides a kind of water purifier, it includes host computer, and the host computer includes:

[0007] Casing, with first accommodating area;

[0008] Filter cartridge assembly, it is transversely arranged in the first accommodating area, to purify water flow;

[0009] Integrated waterway component, it is internally provided with multiple flow channels and multiple water inlets, to sequentially communicate at least part of waterway in the host computer;The integrated waterway component is vertically arranged at one side of the filter cartridge assembly;

[0010] Wherein, the integrated waterway component is provided with first cooperation valve, one end of the filter cartridge assembly is provided with second cooperation valve;One end of the filter cartridge assembly is mounted to the integrated waterway component, and the first cooperation valve and the second cooperation valve are inserted and cooperated.

[0011] Optionally, the length of the filter cartridge assembly extends along the first direction, the width of the integrated waterway component extends along the second direction, and the first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0012] Optionally, the multiple water inlets include:

[0013] Raw water inlet, to connect water source;

[0014] a first purified water outlet configured to communicate with a purified water dispenser provided on the main body for dispensing purified water to the outside;

[0015] a second purified water outlet configured to communicate with a purified water container provided on the main body;

[0016] a waste water outlet configured to discharge waste water filtered and / or cleaned by the filter cartridge assembly; the raw water inlet, the first purified water outlet, the second purified water outlet and the waste water outlet are located at an upper portion of the integrated waterway member.

[0017] Optionally, the raw water inlet, the waste water outlet, the second purified water outlet and the first purified water outlet are sequentially arranged along a width direction of the integrated waterway member.

[0018] Optionally, the main body comprises a first pump body configured to provide power to water flowing through the filter cartridge assembly.

[0019] The filter cartridge assembly comprises a first filter cartridge, a second filter cartridge and a third filter cartridge sequentially arranged along a water flow direction, the first filter cartridge and the second filter cartridge are configured to filter and purify water flow, and the third filter cartridge is configured to inhibit microorganisms and / or improve taste.

[0020] Optionally, the plurality of water passing inlets further comprises a first filter cartridge inlet, a first filter cartridge outlet, a first pump body inlet, a first pump body outlet, a second filter cartridge inlet, a second filter cartridge outlet, a second filter cartridge waste water outlet, a third filter cartridge inlet and a third filter cartridge outlet.

[0021] The plurality of flow channels comprises a first flow channel communicating the raw water inlet and the first filter cartridge inlet, a second flow channel communicating the first filter cartridge outlet and the first pump body inlet, a third flow channel communicating the first pump body outlet and the second filter cartridge inlet, a fourth flow channel communicating the second filter cartridge outlet and the third filter cartridge inlet, a fifth flow channel communicating the third filter cartridge outlet and the first purified water outlet, a sixth flow channel communicating the third filter cartridge outlet and the second purified water outlet, a seventh flow channel communicating the second filter cartridge waste water outlet and the waste water outlet, and an eighth flow channel communicating the third filter cartridge outlet and the waste water outlet.

[0022] Optionally, the first filter cartridge inlet and the first filter cartridge outlet respectively communicate with the first filter cartridge, the second filter cartridge inlet, the second filter cartridge outlet and the second filter cartridge waste water outlet respectively communicate with the second filter cartridge, and the third filter cartridge inlet and the third filter cartridge outlet respectively communicate with the third filter cartridge.

[0023] The first filter cartridge inlet, the first filter cartridge outlet, the third filter cartridge inlet and the third filter cartridge outlet are located at a lower portion of the integrated waterway member, and the second filter cartridge inlet, the second filter cartridge outlet and the second filter cartridge waste water outlet are located at a middle portion of the integrated waterway member.

[0024] Optionally, the first filter inlet, the first filter outlet, the third filter inlet and the third filter outlet are arranged in sequence along a width direction of the integrated waterway component, and the second filter inlet, the second filter outlet and the second filter wastewater outlet are arranged in sequence along the width direction of the integrated waterway component.

[0025] Optionally, the first flow channel is arranged close to a vertical side wall of the integrated waterway component, and the first flow channel and the second flow channel both extend vertically and are arranged adjacently.

[0026] Optionally, the third flow channel is in a U shape, the fourth flow channel is in an L shape, 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 a width direction of the integrated waterway component.

[0027] Optionally, the fifth flow channel extends vertically, one end of the fifth flow channel is inserted into a U-shaped area formed by the third flow channel downward, and the other end of the fifth flow channel extends upward.

[0028] Optionally, a first valve interface is arranged on the fifth flow channel, 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.

[0029] Optionally, the sixth flow channel is arranged on one side of an upper portion of the fifth flow channel and extends vertically.

[0030] The integrated waterway component comprises a second valve interface, the second valve interface is used to install a fifth valve, and the fifth valve is used to control the opening and closing of the sixth flow channel.

[0031] 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 a width direction of the integrated waterway component.

[0032] Optionally, the eighth flow channel partially overlaps the seventh flow channel.

[0033] Optionally, a third valve interface is arranged on the eighth flow channel, the third valve interface is used to install a sixth valve, and the sixth valve is used to control the opening and closing of the eighth flow channel.

[0034] Optionally, a fourth valve interface is arranged on the seventh flow channel, 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.

[0035] Optionally, a fifth valve interface is arranged on the first flow channel, 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.

[0036] Optionally, the integrated waterway component comprises a check valve interface for installing a second check valve for preventing backflow of wastewater in the eighth flow channel.

[0037] Optionally, the integrated waterway component comprises:

[0038] a first TDS sensor interface in communication with the second flow channel;

[0039] an NTC sensor interface in communication with the fourth flow channel;

[0040] a second TDS sensor interface in communication with the fourth flow channel;

[0041] a flow meter interface downstream of the third filter cartridge outlet.

[0042] Optionally, the cross-sectional area of the flow channel is greater than or equal to 40mm 2 .

[0043] Optionally, the integrated waterway component comprises a first plate body and a second plate body, which are welded and jointly form the plurality of flow channels.

[0044] Optionally, the machine shell comprises:

[0045] an outer shell for forming an outer contour structure of the main machine;

[0046] an inner shell connected in the outer shell; a front side plate of the inner shell is provided with three openings;

[0047] wherein the integrated waterway component is provided with three first clamping slots, each of which is provided with a first matching valve; the first end of each filter cartridge of the filter cartridge assembly is clamped to a corresponding opening and the tail end is clamped to a corresponding first clamping slot, and the second matching valve of each filter cartridge is inserted and matched with the corresponding first matching valve.

[0048] Optionally, the main machine further comprises:

[0049] a first pump body for providing power when water provided by a water source flows through the filter cartridge assembly;

[0050] a purified water container for storing clean water processed by the filter cartridge assembly;

[0051] a hot water container for providing hot water;

[0052] wherein the machine shell further comprises a second accommodation area, and the first and second accommodation areas are sequentially distributed in the vertical direction of the machine shell.

[0053] The length of the filter core assembly extends along a first direction, the first pump body, the purified water container and the hot water container are sequentially arranged in the second accommodating area along the first direction, and the purified water container is configured to partially surround the first pump body.

[0054] Optionally, the first accommodating area is located below the second accommodating area.

[0055] Optionally, the first pump body and the hot water container are both substantially cylindrical, and the first pump body and the hot water container are both vertically arranged in the second accommodating area.

[0056] Optionally, the first pump body is completely located above the filter core assembly.

[0057] Optionally, the hot water container comprises a tank body and a second pump body located below the tank body, and the second pump body is in communication with a first water outlet at the bottom of the tank body.

[0058] The tank body is cylindrical and completely located above the filter core assembly, and a projection of the second pump body on a second direction partially falls on the filter core assembly.

[0059] The first direction and the second direction are perpendicular to each other and both parallel to a horizontal plane.

[0060] Optionally, the purified water container is substantially L-shaped to partially surround the first pump body.

[0061] Optionally, a first side wall of the purified water container facing the first pump body is curved, and the first side wall partially surrounds the first pump body.

[0062] Optionally, the first pump body is vertically arranged in the second accommodating area, the first pump body comprises a first motor accommodating cylinder and a pump head, and the first pump body is cylindrical; the first side wall is in shape cooperation with a circumferential surface wall of the first pump body.

[0063] Optionally, the first pump body comprises a first motor accommodating cylinder and a pump head, and a projection of the first motor accommodating cylinder on the first direction completely falls on the purified water container.

[0064] Optionally, the first pump body comprises a first motor accommodating cylinder and a pump head, a total area of a projection of the first motor accommodating cylinder on a second direction is S1, an area of a projection of the first motor accommodating cylinder on the purified water container in the second direction is S2, and the S2 is greater than one half of the S1; the first direction and the second direction are perpendicular to each other and both parallel to a horizontal plane.

[0065] Optionally, the purified water container partially surrounds the filter core assembly.

[0066] Optionally, a projection of the filter core assembly in the second direction partially falls on the purified water container.

[0067] The first direction and the second direction are perpendicular to each other and both are parallel to a horizontal plane.

[0068] Optionally, the volume of the hot water container is 1.1-1.6 times the volume of the purified water container.

[0069] Optionally, the volume of the hot water container is 1.4-1.6L, and the volume of the purified water container is 1.8-2.2L.

[0070] Optionally, the main machine further comprises:

[0071] a heating element for heating purified water;

[0072] The heating element is vertically arranged in the second accommodating area, and is located on a side of the hot water container away from the purified water container. A 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 both are parallel to a horizontal plane.

[0073] Optionally, the main machine further comprises a second waterway, one end of the second waterway being in communication with the first water inlet of the hot water container, and the other end being in communication with a water outlet end of the heating element.

[0074] Optionally, the inner shell of the machine shell is provided with a filter core seat and a frame body connected thereto. The filter core seat is provided with a first accommodating cavity, and the first accommodating cavity constitutes the first accommodating area. The second accommodating area is located in the frame body and above the filter core seat.

[0075] Optionally, the front side plate of the inner shell is located on a side of the hot water container away from the purified water container.

[0076] The inner shell is provided with a second accommodating cavity and a third accommodating cavity. A fourth accommodating cavity is formed between the outer wall of the second accommodating cavity, the outer wall of the third accommodating cavity and the outer wall of the filter core seat. A fifth accommodating cavity is formed between the outer wall of the third accommodating cavity and the inner wall of the front side plate.

[0077] The second accommodating cavity, the third accommodating cavity, the fourth accommodating cavity and the fifth accommodating cavity jointly constitute the second accommodating area.

[0078] The first pump body is arranged in the second accommodating cavity, the hot water container is arranged in the third accommodating cavity, the purified water container is arranged in the fourth accommodating cavity, and the heating element of the main machine is arranged in the fifth accommodating cavity.

[0079] Optionally, a cavity wall of the second accommodating cavity and an outer wall of the first pump body are shaped to match, a cavity wall of the third accommodating cavity and an outer wall of the hot water container are shaped to match, and a cavity wall of the fourth accommodating cavity and an outer wall of the purified water container are shaped to match.

[0080] Optionally, the filter element assembly comprises a first filter element, a second filter element and a third filter element arranged in parallel with each other, the first filter element and the third filter element are sequentially distributed along a second direction, and the second filter element is located above the first filter element and the third filter element.

[0081] A lowest point of the second filter element is located in a space formed by the first filter element and the third filter element in the second direction, and the lowest point is higher than an axis of the first filter element and an axis of the third filter element.

[0082] The first direction and the second direction are perpendicular to each other and both are parallel to a horizontal plane.

[0083] Optionally, the first filter element, the second filter element and the third filter element are arranged in an isosceles triangle shape.

[0084] Optionally, the first filter element and the third filter element both have equal diameters, and the diameters are smaller than a diameter of the second filter element.

[0085] Optionally, an axial spacing of the first filter element and the third filter element is smaller than the diameter of the second filter element.

[0086] Optionally, the first accommodating region comprises:

[0087] a first filter element accommodating cavity for accommodating the first filter element;

[0088] a second filter element accommodating cavity for accommodating the second filter element;

[0089] a third filter element accommodating cavity for accommodating the third filter element;

[0090] wherein cavity walls of the first filter element accommodating cavity, the second filter element accommodating cavity and the third filter element accommodating cavity are sequentially connected in a head-to-tail manner to form the first accommodating region.

[0091] Optionally, a cavity wall of the first filter element accommodating cavity and a circumferential surface wall of the first filter element are shaped to match, and the first filter element accommodating cavity surrounds more than half of a circumferential part of the first filter element;

[0092] a cavity wall of the second filter element accommodating cavity and a circumferential surface wall of the second filter element are shaped to match, and the second filter element accommodating cavity surrounds more than half of a circumferential part of the second filter element;

[0093] The cavity wall of the third filter element accommodating cavity is matched with the circumferential wall of the third filter element, and the third filter element accommodating cavity surrounds more than half of the circumference of the third filter element.

[0094] Optionally, the outer wall and the inner wall of the filter element seat are substantially the same in profile.

[0095] Optionally, each filter element of the filter element assembly is provided with a matched locking assembly and an unlocking member, the locking assembly is used to lock the corresponding filter element to the inner shell of the cabinet, and the unlocking member is used to unlock the locking assembly to disassemble the corresponding filter element.

[0096] Optionally, the unlocking member is movably connected to the corresponding filter element, and the locking assembly comprises:

[0097] a locking member movably connected to the front side plate of the inner shell, the locking member having a locking position and an unlocking position;

[0098] a resilient member applying a resilient force to the locking member to keep the locking member in the locking position;

[0099] wherein, when the locking member is in the locking position, the locking member can limit the pulling out of the corresponding filter element to achieve locking, and when the locking member is in the unlocking position, the locking member is released from the limitation.

[0100] The unlocking member can move under external force to drive the locking member to overcome the resilient force, so that the locking member moves to the unlocking position.

[0101] Optionally, when the locking member is in the locking position, the locking member is at least partially located on the pulling-out path of the corresponding filter element to achieve locking, and when the locking member is in the unlocking position, the locking member is away from the pulling-out path.

[0102] Optionally, the locking member is a lock, and the locking assembly further comprises a clamping groove arranged on the corresponding filter element.

[0103] When the locking member is in the locking position, the locking member is clamped in the clamping groove, and when the locking member is in the unlocking position, the locking member is separated from the clamping groove.

[0104] Optionally, the locking member is pivoted to the front side plate through a pivoting shaft, and the locking member rotates around the pivoting shaft to switch between the locking position and the unlocking position.

[0105] Optionally, each filter element is provided with a filter element end cover, the filter element end cover is provided with a first groove, the unlocking member comprises a handle portion and a first mounting portion, and the first mounting portion is rotatably connected in the first groove.

[0106] 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.

[0107] Optionally, the locking element comprises a locking protrusion buckled to the buckling surface.

[0108] The first mounting portion is provided with a pushing surface, and when the unlocking element is rotated under external force, the buckling surface is separated from the locking protrusion, and the pushing surface pushes the locking protrusion, so that the locking element is separated from the locking position.

[0109] Optionally, two locking elements are arranged on the two radial sides of each filter element.

[0110] Optionally, the filter element assembly comprises a first filter element, a second filter element and a third filter element arranged in parallel with each other, the first filter element and the third filter element are sequentially distributed along a second direction, and the second filter element is located above the first filter element and the third filter element; the length of the filter element assembly extends along a first direction, and the first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0111] The two locking elements located between the first filter element and the third filter element are pivoted to the same pivot shaft.

[0112] Optionally, the main machine comprises a hot water container, and the hot water container comprises:

[0113] A tank body is provided with a water storage cavity and a first water outlet communicated with the bottom of the water storage cavity.

[0114] A second pump body is transversely arranged below the tank body, and comprises a second water outlet, a pump cavity and a second water inlet communicated in sequence; the second water inlet is communicated with the first water outlet, and the second water outlet is located at the top of the pump cavity.

[0115] Optionally, the second pump body comprises a water outlet pipeline, and the water outlet pipeline and the communication port of the pump cavity form the second water outlet; the water outlet pipeline is inclined upward from the second water outlet.

[0116] Optionally, the included angle between the water outlet pipeline and the horizontal plane is 5°-20°.

[0117] Optionally, the second pump body comprises 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.

[0118] Optionally, the outer periphery of the front end cover is provided with a plurality of first protruding portions, the outer periphery of the second motor accommodating cylinder is provided with a plurality of second protruding portions, the first protruding portions and the second protruding portions are arranged one by one and connected by fasteners.

[0119] The second pump body comprises a water outlet pipe which is in communication with the communication port of the pump chamber to form the second water outlet;

[0120] The second water outlet is below the first protruding part which is at the highest position, and the water outlet pipe does not protrude from the first protruding part.

[0121] Optionally, the second pump body is provided with a blocking rib which is arranged at the second water inlet; the blocking rib separates the water vapor by dispersing the hot water flow entering the second water inlet.

[0122] Optionally, the hot water container comprises a pump fixing frame, and the second pump body is mounted on the bottom of the tank body through the pump fixing frame.

[0123] Optionally, the pump fixing frame comprises a support frame and an adapter pipe, the second pump body is arranged on the support frame, and the two ends of the adapter pipe are in communication with the first water outlet and the second water inlet respectively.

[0124] Optionally, the second pump body comprises a water inlet pipe which is inserted into one end of the adapter pipe and is provided with a first sealing member at the assembly position.

[0125] The other end of the adapter pipe is inserted into the first water outlet and is provided with a second sealing member at the assembly position.

[0126] Optionally, the support frame is an open structure which semi-surrounds the second pump body.

[0127] Optionally, a damping member is arranged on the outer periphery of the second pump body.

[0128] Optionally, the second pump body is arranged on the bottom of the tank body and 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 core assembly.

[0129] The length of the filter core assembly extends along a first direction, and the first direction and the second direction are perpendicular to each other and parallel to the horizontal plane.

[0130] Optionally, the tank body is provided with a heat preservation structure which circumferentially surrounds the water storage cavity.

[0131] Optionally, the tank body is provided with a double-layer vacuum structure which forms the heat preservation structure.

[0132] Optionally, the tank body is provided with a liquid level detection mechanism which is used to obtain the liquid level information of the water storage cavity.

[0133] Optionally, the liquid level detection mechanism comprises:

[0134] an upper float located in the water storage cavity and capable of floating up and down between a first position and a second position;

[0135] a lower float located in the water storage cavity and below the upper float, and capable of floating up and down between a third position and a fourth position;

[0136] a liquid level sensor configured to obtain the liquid level information of the water storage cavity by obtaining the position information of the upper float and the lower float in the up-down direction.

[0137] Optionally, the tank body is provided with a mounting column parallel to the axis of the tank body, and the upper float and the lower float are movably mounted on the mounting column.

[0138] The mounting column has four limiters on its outer periphery, which define the first position, the second position, the third position and the fourth position respectively.

[0139] Optionally, the mounting column has a hollow portion, and the liquid level sensor is mounted in the hollow portion.

[0140] Optionally, the tank body is provided with a temperature sensor configured to obtain the water temperature information in the water storage cavity.

[0141] Optionally, the water purifier further comprises a water dispenser located outside the main machine and configured to dispense water to the outside world; the main machine comprises a waterway assembly, which comprises:

[0142] a hot water supply waterway, two ends of which are respectively in communication with the water dispenser and the hot water container, so that the hot water in the hot water container flows into the water dispenser through the hot water supply waterway and is dispensed through the water dispenser;

[0143] a backflow waterway, two ends of which are respectively in communication with the water dispenser and the hot water container;

[0144] When the backflow waterway is open, the water in the water dispenser flows back to the hot water container through the backflow waterway.

[0145] Optionally, the waterway assembly comprises a first valve provided on the backflow waterway, which is configured to block or open the backflow waterway.

[0146] Optionally, the water purifier comprises a second pump body provided on the hot water supply waterway, which is configured to pump the water in the hot water container.

[0147] Optionally, the water dispenser comprises a liquid buffer cavity and a dispensing head in communication, and the liquid buffer cavity is configured to temporarily store liquid.

[0148] The hot water supply water path and the liquid storage cavity are communicated, and hot water in the hot water supply water path flows into the dispensing head through the liquid storage cavity.

[0149] Optionally, the backflow water path and the liquid storage cavity are communicated.

[0150] Before the water purifier dispenser dispenses water, the hot water container, the hot water supply water path, the liquid storage cavity and the backflow water path are sequentially communicated and constitute a preheating circulating water path; under the power provided by the second pump body, a preheating water circulation is formed in the preheating circulating water path.

[0151] Optionally, the liquid storage cavity, the backflow water path and the hot water container are sequentially arranged from top to bottom.

[0152] Optionally, the dispensing head comprises a trigger element and a water taking switch.

[0153] When the trigger element is operated and the water taking switch is in an unopened state, the second pump body operates to start the preheating water circulation.

[0154] Optionally, the dispensing head comprises a temperature selection operating member, and the temperature selection operating member constitutes the trigger element.

[0155] Optionally, the preheating water circulation is configured to execute for 3-5 seconds so that the temperature of the hot water in the hot water supply water path reaches a preset temperature value.

[0156] Optionally, the temperature selection operating member and the water taking switch are touch keys or mechanical buttons or knobs.

[0157] Optionally, the upper surface of the dispensing head is a touch screen, and the touch screen comprises an indicator light.

[0158] When the touch screen is in an initial state, the indicator light is half bright; when the touch screen is touched, the indicator light is fully bright.

[0159] Optionally, the liquid storage cavity comprises 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.

[0160] The hot water supply water path is communicated with the first communication port, and the backflow water path is communicated with the second communication port; one end of the dispensing head is provided with a dispensing port, and the other end thereof is communicated with the third communication port.

[0161] Optionally, the water purifier comprises a heating element arranged on the hot water supply water path; and the second pump body is arranged on a water path between the hot water container and the heating element.

[0162] Optionally, the water path assembly comprises:

[0163] a second water path, a water outlet end of which is in communication with the hot water container;

[0164] a second valve, a first water outlet end of which is in communication with the first hot water pipe of the hot water supply water path, a second water outlet end of which is in communication with the second water path, and a water inlet end of which is in communication with the heating element; the first hot water pipe is in communication with the liquid buffer cavity;

[0165] wherein, when the water temperature in the hot water container does not reach the preset value and the water taking of the water purifier is not started, 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 started, and the water in the hot water container is heated by the heating element and then circulated into the hot water container through the second water path, forming a heating circulating water path, so that the water temperature in the hot water container reaches the preset value.

[0166] Optionally, the main machine comprises a first water path and a first pump body, a water inlet of the first water path is used to access a water source; the first pump body and the filter element assembly are arranged on the first water path, and a water outlet end of the first water path is in communication with the water purifier dispenser to supply purified normal temperature water.

[0167] Optionally, the water outlet end of the first water path is in communication with the fourth communication port of the liquid buffer cavity;

[0168] when T m =T1, the water flow in the hot water container flows into the dispensing head through the hot water supply water path and the liquid buffer cavity in turn;

[0169] when T m =T2, the water flow in the first water path flows into the dispensing head through the liquid buffer cavity;

[0170] when T2 m <T1, the water flow in the hot water container and the water flow in the first water path are mixed in the liquid buffer cavity to obtain a water flow with a temperature of T m , and then flow into the dispensing head;

[0171] when T m >T1, the water flow in the hot water container is heated by the heating element and then flows into the dispensing head through the liquid buffer cavity;

[0172] wherein, the preset temperature value in the hot water container is T1, the temperature of the normal temperature water provided by the first water path is T2, and the target temperature of water taking is T m .

[0173] Optionally, the T1 is 82-88℃.

[0174] Optionally, a first check valve is arranged at a water outlet end of the first water path and a water inlet end of the liquid storage chamber, the first check valve being configured to prevent water in the liquid storage chamber from flowing into the first water path.

[0175] Optionally, a water inlet end of the purified water container is connected to the first water path, and a water outlet end of the purified water container is connected to the hot water supply path through a third water path, and a third pump is arranged on the third water path.

[0176] When the liquid level in the purified water container is lower than a preset purified water level and the purified water machine is not in use, the first pump is operated to make water in the first water path flow into the purified water container through the filter assembly for purification, so as to supplement purified water.

[0177] When the liquid level in the hot water container is lower than a preset hot water level and the purified water machine is not in use, the third pump is operated to make water in the purified water container flow into the hot water supply path and then into the hot water container through the heating element for heating, so as to supplement hot water.

[0178] Optionally, the third water path is connected to the hot water supply path through a third valve.

[0179] Optionally, the third pump is a diaphragm pump.

[0180] Optionally, the hot water container is provided with a first exhaust pipe, and an exhaust outlet of the first exhaust pipe is connected to a second exhaust pipe arranged on the purified water dispenser.

[0181] Optionally, the purified water container is provided with a third exhaust pipe, and an exhaust outlet of the third exhaust pipe is connected to the first exhaust pipe.

[0182] Optionally, the hot water supply path is a Teflon pipe.

[0183] Optionally, the filter assembly comprises a first filter, a second filter and a third filter arranged in sequence along a water flow direction, the first filter and the second filter being configured to filter and purify water flow, and the third filter being configured to inhibit microorganisms and / or improve taste.

[0184] The water path assembly comprises a first waste water path, a water inlet end of which is connected to a water path between the second filter and the third filter, the first waste water path being configured to discharge waste water discharged from the second filter.

[0185] Optionally, the water path assembly comprises a second waste water path, a water inlet end of which is connected to a downstream of the third filter, the second waste water path being configured to discharge waste water generated during cleaning of the filter assembly.

[0186] Optionally, the water purifier further comprises a water dispensing device, which is located outside the main body and is used to dispense water to the outside world, and which comprises:

[0187] a dispensing port used to dispense water;

[0188] a water outlet channel, two ends of which are respectively connected with the dispensing port and a water supply port of a waterway assembly of the main body, and which comprises a first bottom wall and a second bottom wall;

[0189] a first water blocking structure provided on the bottom wall of the water outlet channel;

[0190] wherein the second bottom wall, the first water blocking structure and the first bottom wall are sequentially arranged along the water flow direction; the first bottom wall is downwardly inclined towards the dispensing port, and the second bottom wall is downwardly inclined away from the dispensing port.

[0191] Optionally, the second bottom wall, the first water blocking structure and the first bottom wall are sequentially connected.

[0192] Optionally, the second bottom wall is higher than the first bottom wall.

[0193] Optionally, the bottom wall of the water outlet channel is upwardly convex to form the first water blocking structure.

[0194] Optionally, the water dispensing device comprises a gas blocking structure and a second water blocking structure, the gas blocking structure is provided on the top wall of the water outlet channel and is located between the dispensing port and the first water blocking structure, and the second water blocking structure is located at the dispensing port.

[0195] The height h1 of the top wall of the first water blocking structure is higher than the height h2 of the bottom wall of the gas blocking structure, and the h1 is configured to enable the first water blocking structure to partially block the backflow of water in the water outlet channel to form a predetermined amount of pre-stored water with a predetermined liquid level h3 between the first water blocking structure and the second water blocking structure.

[0196] wherein h2 < h3 < h1, so that the pre-stored water forms a water seal at the gas blocking structure, thereby preventing the exchange of gas on both sides of the gas blocking structure.

[0197] Optionally, the outer wall of the dispensing port constitutes the second water blocking structure.

[0198] Optionally, the top wall of the water outlet channel is downwardly convex to form the gas blocking structure.

[0199] Optionally, the water outlet channel comprises a horizontal channel and a vertical channel connected in series, the dispensing port is connected with the horizontal channel, and the liquid storage cavity is connected with the vertical channel.

[0200] The first water retaining structure is located in the transverse channel; the water purifying dispenser comprises 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 storage cavity and below the top wall of the first water retaining structure;

[0201] During the preheating water circulation, when the temperature controller acquires temperature information, the second pump body is closed to stop the preheating water circulation, and the water in the liquid storage cavity flows back to the hot water container through the backflow waterway.

[0202] Optionally, when the preheating water circulation is stopped and the temperature controller does not acquire temperature information, the second pump body is opened to resume the preheating water circulation.

[0203] Optionally, when the preheating water circulation is stopped for a preset duration, the second pump body is opened to resume the preheating water circulation.

[0204] Optionally, the water purifying dispenser comprises an ultraviolet sterilization element located in the water outlet channel and arranged close to the dispensing port.

[0205] Optionally, the water purifying dispenser comprises a dispensing head, and the water outlet channel and the dispensing port are located in the dispensing head.

[0206] The dispensing head is substantially L-shaped, and the dispensing head is provided with a second mounting portion at an end away from the dispensing port; the second mounting portion is inserted into the fourth communication port of the liquid storage cavity, and a third sealing element is arranged at the assembly position of the second mounting portion and the fourth communication port.

[0207] Optionally, the water purifying dispenser comprises a backflow structure, and the interior of the backflow structure is hollow to form the liquid storage cavity.

[0208] Optionally, the dispensing port comprises:

[0209] A first dispensing pipeline, the height h4 of which is higher than the height of the first water retaining structure, and the first dispensing pipeline has a first water dispensing inlet;

[0210] A second dispensing pipeline, the height h5 of which is higher than h4;

[0211] A plug, which is inserted into part of the inlet of the second dispensing pipeline, and the assembly position of the plug and the second dispensing pipeline forms a steam discharge gap, the plug separates the inlet of the second dispensing pipeline into a second water dispensing inlet and a steam discharge gap;

[0212] The water level in the water outlet channel is h6, when h4 < h6 ≤ h5, the water in the water outlet channel enters the dispensing port through the first water dispensing inlet, and the steam in the water outlet channel enters the dispensing port through the second water dispensing inlet and is discharged;

[0213] When h6>h5, the water in the outlet channel enters the distribution port through the first water distribution inlet and the second water distribution inlet, and the steam in the outlet channel is discharged after entering the distribution port through the steam discharge gap.

[0214] Optionally, the distribution port comprises an outlet channel, outlets of the first distribution pipeline and the second distribution pipeline are in communication with the outlet channel respectively, and the purified water is distributed outward through the outlet channel.

[0215] Optionally, the purified water dispenser comprises a second air discharge pipeline, which is located in a distribution head of the purified water dispenser, and an outlet of the second air discharge pipeline opens downward.

[0216] Optionally, an upper surface of the distribution head of the purified water dispenser is a touch screen, the touch screen is provided with a temperature selection operation member, and the distribution head comprises a water taking switch in the form of a rotary knob, which is located above the touch screen.

[0217] Optionally, when the opening condition of the backflow waterway is reached, the backflow waterway is opened, and the water in the liquid storage cavity flows back to the hot water container through the backflow waterway; the opening condition comprises: the preheating water circulation starts.

[0218] When the closing condition of the backflow waterway is reached, the backflow waterway is blocked; the closing condition comprises: the preheating water circulation ends.

[0219] Optionally, when the purified water dispenser distributes water, the backflow waterway is blocked.

[0220] When the purified water dispenser stops distributing hot water, the backflow waterway is opened, and the water in the liquid storage cavity flows back to the hot water container through the backflow waterway.

[0221] Optionally, the purified water dispenser further comprises a water mixing cavity and a normal temperature water cavity, the normal temperature water cavity and the liquid storage cavity are not in communication with each other; the third communication port, the water mixing cavity and the distribution head are in communication in sequence; the hot water in the hot water supply waterway enters the water mixing cavity through the liquid storage cavity, and is distributed to the outside world through the distribution head.

[0222] The normal temperature water cavity comprises a fifth communication port and a sixth communication port, the sixth communication port is in communication with the water mixing cavity, and the fifth communication port is in communication with an outlet end of the first waterway; the purified normal temperature water in the first waterway can enter the water mixing cavity through the normal temperature water cavity.

[0223] The utility model has the following technical effects:

[0224] The utility model provides a water purifier, the filter core subassembly is transversely arranged in the first accommodating area of casing, the integrated waterway component is with the one side of filter core subassembly, and, through the first cooperation valve and second cooperation valve plug -in cooperation, to realize integrated waterway component and filter core subassembly intercommunication, through integrated waterway component to the installation of one end of filter core subassembly, need not set up spare parts to the installation of this end part of filter core subassembly, can save space occupation, be favorable to the miniaturization design of water purifier. BRIEF DESCRIPTION OF DRAWINGS

[0225] Figure 1 It is the structure section view of host computer of the utility model;

[0226] Figure 2 It is the local structure section view of host computer of the utility model;

[0227] Figure 3 It is the three -dimensional structure schematic diagram of inner shell of the utility model Figure 1 ;

[0228] Figure 4 It is the three -dimensional structure schematic diagram of inner shell of the utility model Figure 2 ;

[0229] Figure 5 It is the assembly structure schematic diagram of first pump body, water purifying ventilation, hot water container, heating element and filter core subassembly of the utility model Figure 1 ;

[0230] Figure 6 It is the assembly structure schematic diagram of first pump body, water purifying ventilation, hot water container, heating element and filter core subassembly of the utility model Figure 2 ;

[0231] Figure 7 It is the local three -dimensional structure schematic diagram of host computer of the utility model;

[0232] Figure 8 It is Figure 7 Enlarged view in A of

[0233] Figure 9 It is the assembly structure explosion drawing of locking assembly, unlocking piece and filter core cover of the utility model Figure 1 ;

[0234] Figure 10 It is the assembly structure explosion drawing of locking assembly, unlocking piece and filter core cover of the utility model Figure 2

[0235] Figure 11 It is the assembly structure schematic diagram of two locking pieces between first filter core and third filter core and same pivot axle of the utility model;

[0236] Figure 12 The assembly structure explosion drawing of two locking members between the first filter element and the third filter element and the same pivot shaft of the utility model;

[0237] Figure 13 The partial structure front view of the host of the utility model;

[0238] Figure 14 The structure sectional view of the hot water container of the utility model;

[0239] Figure 15 For Figure 14 The enlarged view of B;

[0240] Figure 16 The assembly structure explosion drawing of the second pump body, the pump fixing frame, the second sealing member and the damping part of the utility model;

[0241] Figure 17 The front view of the second pump body of the utility model;

[0242] Figure 18 The connection relation schematic drawing of the waterway assembly and the water purification distributor in the first embodiment of the utility model;

[0243] Figure 19 The partial structure sectional view of the water purification distributor in the first embodiment of the utility model Figure 1 ;

[0244] Figure 20 The partial structure sectional view of the water purification distributor in the first embodiment of the utility model Figure 2 ;

[0245] Figure 21 The structure sectional partial enlarged view of the water purification distributor of the utility model;

[0246] Figure 22 The three-dimensional structure schematic drawing of the water return structure in the first embodiment of the utility model;

[0247] Figure 23 The assembly structure explosion drawing of the inner core main body and the inner core cover body of the utility model;

[0248] Figure 24 The structure explosion drawing of the integrated waterway component of the utility model;

[0249] Figure 25 The rear view of the first plate body of the utility model;

[0250] Figure 26 The front view of the second plate body of the utility model;

[0251] Figure 27It is the third embodiment of the utility model's second plate body's perspective structure schematic diagram;

[0252] Figure 28 It is the second plate body's rear view of the utility model;

[0253] Figure 29 It is the structure explosion drawing of the water purifier of the utility model;

[0254] Figure 30 It is the perspective structure schematic diagram of the water purifier of the utility model

[0255] Figure 31 It is the connection relation schematic diagram of water route assembly and water purifying distributor in the second embodiment of the utility model;

[0256] Figure 32 It is the perspective structure schematic diagram of the water purifier of the utility model

[0257] Figure 33 It is the structure section view of the water purifier of the utility model Figure 1 ;

[0258] Figure 34 It is the structure section view of the water purifier of the utility model Figure 2 .

[0259] Explanation of reference signs

[0260] 1000, water purifier;

[0261] 100, main machine;

[0262] 1, water route assembly; 11, first water route; 12, hot water supply water route; 121, first hot water pipe; 122, second hot water pipe; 13, backflow water route; 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 water route; 16, third water route; 171, first check valve; 172, second check valve; 173, third check valve; 174, fourth check valve; 175, fifth check valve; 181, first waste water route; 182, second waste water route;

[0263] 21, first pump body; 211, first motor accommodating cylinder; 212, pump head; 22, third pump body;

[0264] 3, filter element assembly; 31, first filter element; 32, second filter element; 33, third filter element; 34, locking assembly; 341, locking piece; 3411, locking protrusion; 3412, pivoting arm; 342, elastic piece; 343, buckle groove; 344, pivoting shaft; 35, unlocking piece; 351, handle part; 352, first mounting part; 3521, buckling surface; 3522, pushing surface; 3523, shaft hole; 36, filter element end cover; 361, first groove; 362, mounting shaft;

[0265] 41, water purification container; 411, first side wall; 412, third exhaust duct; 413, extension section;

[0266] 42, hot water container; 421, tank body; 4211, first water outlet; 4212, first water inlet; 4213, water storage cavity; 4214, heat preservation structure; 42141, outer tank body; 42142, inner tank body; 42143, vacuum cavity; 4215, liquid level detection mechanism; 42151, upper float; 42152, lower float; 4216, mounting column; 4217, limiting piece; 4218, temperature sensor; 422, second pump body; 4221, second water outlet; 4222, pump cavity; 4223, second water inlet; 4224, water outlet duct; 4225, front end cover; 42251, first protruding part; 4226, second motor accommodating cylinder; 42261, second protruding part; 4227, blocking rib; 42271, axially extending rib; 42272, radially extending rib; 4228, water inlet duct; 423, pump fixing frame; 4231, support frame; 42311, arc-shaped slot; 423111, first through hole; 42312, support groove; 4232, adapter duct; 424, first sealing piece; 425, second sealing piece; 426, damping part; 427, first exhaust duct; 428, base; 4281, second through hole;

[0267] 5, machine shell; 51, outer shell body; 52, inner shell body; 521, first accommodating area; 5211, first filter element accommodating cavity; 5212, second filter element accommodating cavity; 5213, third filter element accommodating cavity; 522, second accommodating area; 5221, second accommodating cavity; 5222, third accommodating cavity; 5223, fourth accommodating cavity; 5224, fifth accommodating cavity; 523, filter element seat; 5231, recessed part; 524, frame body; 525, front side plate; 5251, opening; 526, first support frame; 527, second support frame;

[0268] 6, heating element;

[0269] 7, integrated waterway component; 71, first clamping 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 purified water outlet; 7262, second purified water outlet; 727, wastewater outlet; 731, first flow channel; 732, second flow channel; 733, 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 body; 77, second plate body; 78, mounting pipe; 79, first matching valve;

[0270] 81, first TDS sensor; 82, NTC sensor; 83, second TDS sensor; 84, flow meter;

[0271] 900, purified water dispenser;

[0272] 91, liquid buffer cavity; 911, first communication port; 912, second communication port; 913, third communication port; 914, fourth communication port;

[0273] 92, dispensing head; 921, water taking switch; 922, temperature selection operating member; 923, dispensing port; 9231, first dispensing pipeline; 92311, second water blocking structure; 92312, first water dispensing inlet; 9232, second dispensing pipeline; 92321, second water dispensing inlet; 9233, plug; 9234, steam discharge gap; 9235, outlet passage; 924, water outlet passage; 9241, first bottom wall; 9242, second bottom wall; 9243, transverse passage; 9244, vertical passage; 925, first water blocking structure; 926, air blocking structure; 927, second mounting portion; 928, inner core main body; 9281, groove structure; 929, inner core cover body; 9291, first mounting seat; 9292, second mounting seat;

[0274] 93, second steam discharge pipe; 931, steam outlet;

[0275] 94, temperature controller; 95, ultraviolet sterilization element; 96, third sealing member;

[0276] 97, water return structure; 971, normal temperature water cavity; 9711, fifth communication port; 9712, sixth communication port; 972, mixed water cavity. DETAILED DESCRIPTION

[0277] In order to make the technical scheme and beneficial effects of the present application more apparent and understandable, the following will be described in detail by way of specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those of the technical and scientific terms in the technical field to which the present application belongs.

[0278] In the description of the present application, unless otherwise explicitly defined, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of the simplified description of the present application, and are not indicative of the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, that is, cannot be understood as a limitation on the present application.

[0279] In the present application, the terms "first" and "second" are only for the purpose of clear description, and cannot be understood as the relative importance of the indicated features or the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two; the meaning of "several" is at least one; except for explicit definition.

[0280] In the present application, unless otherwise explicitly defined, the terms "mounting", "connection", "connection", "fixing", "setting" and the like should be understood broadly. For example, "connection" can be fixed connection, detachable connection or integral molding; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can also be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0281] In the present utility model, unless otherwise expressly limited, the first feature is "on", "over", "above" and "upper" of the second feature, "under", "below" or "lower" of the second feature can be direct contact of the first feature and the second feature, or indirect contact of the first feature and the second feature through intermediate medium.Moreover, the first feature is "over", "above" and "upper" of the second feature can be directly above or obliquely above the first feature, or just indicate that the horizontal height of the first feature is higher than the horizontal height of the second feature.The first feature is "under", "below" and "lower" of the second feature can be directly below or obliquely below the first feature, or just indicate that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0282] First embodiment

[0283] The following is according to Figures 1 to 30 The first embodiment of the water purifier of the present utility model is described in detail.

[0284] In the present embodiment, as Figure 1 、 Figure 18 、 Figure 29 and Figure 30 indicated, the water purifier 1000 includes a main machine 100, the main machine 100 includes a waterway assembly 1, a first pump body 21, a filter element assembly 3, a clean water container 41, a hot water container 42 and a machine shell 5, as Figure 18 indicated, 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 tank water supply, the first pump body 21 is arranged on the first waterway 11, and the first pump body 21 is used to provide power for water flow in the first waterway 11, since the first pump body 21 needs to provide a large water power, and thus the size of the first pump body 21 is relatively large. Figure 18 indicated, the filter element assembly 3 is connected with the first waterway 11 and is used to purify the water source. Figure 1 and Figure 18 indicated, 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 indicated, the machine shell 5 has a first containing area 521 and a second containing area 522 distributed in sequence in the vertical direction, the first containing area 521 can be located above the second containing area 522 or below the second containing 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 arranged transversely in the first accommodating area 521, and the first pump body 21, the purified water container 41 and the hot water container 42 are arranged separately in the second accommodating area 522 along 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 both are parallel to the horizontal plane.

[0285] The first pump body 21 comprises 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 area of the projection of the first motor accommodating cylinder 211 on the second direction b is S1, and the projection area of the first motor accommodating cylinder 211 on the purified water container 41 on 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 shown in Figure 2 、 Figure 5 and Figure 29 As shown, the cross section of the cabinet 5 is roughly rectangular, the cabinet 5 has two side walls in the second direction b, and since the size of the first pump body 21 is smaller than the space size of the cabinet 5 in the second direction b, the first pump body 21 is arranged close to the inner wall of one side of the cabinet 5 in the second direction b, so that the other inner wall of the cabinet 5 in the second direction b and the first pump body 21 have a free space, that is, the free space between the first pump body 21 and the cabinet 5 in the second direction b, and part of the structure of the purified water container 41 extends into the free space, so that the purified water container 41 partially surrounds the first pump body 21, improving the space utilization.

[0286] By adopting the above technical scheme, the arrangement positions of various components of the water purifier 1000 with large internal dimensions are optimized, that is, the filter element assembly 3 is arranged transversely in the first accommodating area 521, and the first pump body 21, the purified water container 41 and the hot water container 42 are arranged separately in the second accommodating area 522 along the first direction a, which can improve the space utilization and is beneficial to the miniaturization design of the whole machine. In addition, the purified water container 41 is configured to partially surround the first pump body 21, effectively utilizing the free space between the first pump body 21 and the cabinet 5 in the second direction b, the purified water container 41 and the first pump body 21 are arranged more compactly, and at the same time, the purified water container 41 can also have sufficient water storage capacity. The water purifier 1000 of the present scheme can be applied to the kitchen, and drinking water is convenient.

[0287] It should be understood that herein, "vertical" represents the height direction when the water purifier 1000 is normally working, "lateral" represents the direction perpendicular to the "vertical", "the first direction a" represents the length direction of the filter core assembly 3 when the water purifier 1000 is normally working, and "the second direction b" represents the width direction of the filter core assembly 3 when the water purifier 1000 is normally working. In addition, the "first direction a" and "the second direction b" mentioned in the utility model are both marked in Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 24 .

[0288] In an embodiment, when the purified water container 41 needs to be replenished with purified water, the water in the first water path 11 is purified by the filter core assembly 3 and then enters the purified water container 41 under the power provided by the first pump body 21, and the purified water in the purified water container 41 can be heated to provide hot water to the hot water container 42 or the purified water enters the hot water container 42 and then is heated to become hot water. In this scheme, as shown in Figure 1 and Figure 5 , the first pump body 21, the purified 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 shorten the length of the water path assembly 1.

[0289] In an embodiment, the first pump body 21 is a booster pump, and the water power is sufficient so that the water has sufficient power to pass through the filter core assembly 3.

[0290] In an embodiment, as shown in Figures 2 to 4 , the first accommodating area 521 is located below the second accommodating area 522, and the filter core assembly 3 has a large weight after the water flow passes through it. The filter core assembly 3 is arranged in the first accommodating area 521 below the machine shell 5, so that the center of gravity of the water purifier 1000 is low, which is more stable and can reduce or avoid the vibration of the water purifier 1000 due to operation.

[0291] Further, as shown in Figure 1 、 Figure 3 and Figure 5 , the first pump body 21 and the hot water container 42 are both substantially cylindrical, and the first pump body 21 and the hot water container 42 are both vertically arranged in the second accommodating area 522, which fully utilizes the space in the height direction of the machine shell 5 and avoids increasing the size of the machine shell 5 in the first direction a due to the lateral arrangement of the first pump body 21 and the hot water container 42.

[0292] Further, as shown in Figure 1 and Figure 5As shown, since the first pump body 21 is substantially cylindrical and large in size, in order to avoid the outer contour of the filter core assembly 3 interfering with the arrangement of the first pump body 21, the first pump body 21 is arranged to be completely above the filter core assembly 3.

[0293] Further, as shown in Figure 5 , Figure 6 , Figure 14 and Figure 15 , the hot water container 42 comprises a tank body 421 and a second pump body 422 arranged below the tank body 421, the tank body 421 is used to store and keep hot water, the second pump body 422 is in communication with the first water outlet 4211 of the bottom of the tank body 421, and the second pump body 422 is used to pump out the hot water in the tank body 421. The tank body 421 is cylindrical and completely above the filter core assembly 3, and the projection of the second pump body 422 on the second direction b falls partially on the filter core assembly 3, that is, there is a free space between the filter core assembly 3 and the cabinet 5 in the second direction b, and the second pump body 422 is partially located in the free space, further improving the space utilization.

[0294] In an embodiment, as shown in Figure 2 and Figure 5 , the purified water container 41 is substantially L-shaped to be able to partially surround the first pump body 21.

[0295] In an embodiment, as shown in Figure 2 and Figure 5 , the first pump body 21 is substantially cylindrical, and the first side wall 411 of the purified water container 41 facing the first pump body 21 is curved, the first side wall 411 partially surrounds the first pump body 21, and the first side wall 411 is defined as a curved shape, which is beneficial to the compact arrangement of the purified water container 41 and the first pump body 21.

[0296] Further, as shown in Figure 1 , Figure 3 and Figure 5 , the first pump body 21 is vertically arranged in the second accommodating area 522, the first motor accommodating cylinder 211 is used to accommodate the motor and the impeller, and the first pump body 21 is cylindrical. The first side wall 411 cooperates with the circumferential wall of the first pump body 21 to make the arrangement of the purified water container 41 and the first pump body 21 more compact.

[0297] In an embodiment, as shown in Figure 2 and Figure 5As shown, the projection of the first motor accommodating cylinder 211 on the first direction a completely falls on the purified water container 41, that is, the size of the purified water container 41 on the second direction b is greater than the radial size of the first motor accommodating cylinder 211, and the two outermost profiles of the first motor accommodating cylinder 211 on the second direction b do not exceed the two side outer profiles of the purified water container 41 on the second direction b, that is, by optimizing the positional relationship of the first motor accommodating cylinder 211 and the purified water container 41, the size of the casing 5 on the second direction b is avoided to be increased due to the layout of the first motor accommodating cylinder 211.

[0298] In an embodiment, as shown in Figure 2 , S2 is greater than one half of S1, so that the purified water container 41 more surrounds the first pump body 21.

[0299] In an embodiment, as shown in Figure 6 , the purified water container 41 partially surrounds the filter core assembly 3, and the purified water container 41 is partially accommodated by the empty space between the filter core assembly 3 and the casing 5, so as to increase the water storage capacity of the purified water container 41.

[0300] Further, as shown in Figure 2 and Figure 6 , the projection of the filter core assembly 3 on the second direction b partially falls on the purified water container 41. Taking the case that the filter core assembly 3 is located below the purified water container 41 as an example, the bottom of the purified water container 41 extends downward to form an extension segment 413, the extension segment 413 and the filter core assembly 3 are arranged in sequence on the second direction b, and the extension segment 413 is accommodated by the empty space on the second direction b between the filter core assembly 3 and the casing 5, so as to rationalize the arrangement.

[0301] In an embodiment, the volume of the hot water container 42 is 1.1-1.6 times the volume of the purified water container 41. Further, the volume of the hot water container 42 is 1.8-2.2L, preferably 2L, which can ensure that the water purifier 1000 has a large hot water flow, such as ≥1.8L / min hot water flow, and the volume of the purified water container 41 is 1.4-1.6L, preferably 1.5L, which can timely supply the hot water container 42 with purified water to be heated.

[0302] In an embodiment, as shown in Figure 2 , Figure 5 and Figure 18 , the main machine 100 includes a heating element 6 and a second waterway 15, one end of the second waterway 15 communicates with the first water inlet 4212 of the hot water container 42, and the other end communicates with the water outlet end of the heating element 6, and the purified water heated by the heating element 6 flows into the hot water container 42 through the second waterway 15 to supplement the hot water of the hot water container 42. As shown in Figure 2 and Figure 3 , the second waterway 15 is arranged on the second direction b, and the second waterway 15 is arranged on the second direction b and the first direction a.As shown, the heating element 6 is vertically arranged within the second accommodating area 522, and the heating element 6 is located on the side of the hot water container 42 away from the clean 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 421 of the hot water container 42 is cylindrical and the outline of the casing 5 is roughly rectangular, a space is formed between the tank 421 and the casing 5. In particular, larger spaces are formed at the two corners inside the casing 5. The heating element 6 is placed in one of these spaces, improving space utilization.

[0303] In one implementation, such as Figure 1 , Figure 2 and Figure 24 As shown, the main unit 100 includes an integrated water circuit component 7. The integrated water circuit component 7 has multiple flow channels inside, which are used to sequentially connect some of the water circuits within the main unit 100. The integrated water circuit component 7 is located on the side of the first pump body 21 opposite to the purified water container 41. The integrated water circuit component 7 is vertically arranged, and its width extends along the second direction b. Specifically, the integrated water circuit component 7 is located at the rear of the casing 5, that is, the integrated water circuit component 7, the first pump body 21, the purified water container 41, the hot water container 42, and the heating element 6 are arranged sequentially from back to front, as shown. Figure 18 , Figure 24 and Figure 26 As shown, the first water channel 11 and the raw water inlet 721 of the integrated water channel component 7 are connected. 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 then 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 water flow direction. The arrangement is reasonable and compact.

[0304] In one implementation, such as 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 main unit 100 to improve the aesthetics of the main unit 100. The inner shell 52 is connected inside the outer shell 51 and forms a support structure for the internal components of the main unit 100. Specifically, as... Figure 3 As shown, the inner housing 52 is provided with a connected filter element seat 523 and a frame 524. The filter element seat 523 is provided with a first accommodating cavity, which constitutes a first accommodating area 521. That is, the first accommodating area 521 is located inside the filter element seat 523, and the second accommodating area 522 is located inside the frame 524 and above the filter element seat 523.

[0305] Furthermore, such as Figure 1 and Figure 3As shown, the inner housing 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 cavity 5221 for accommodating the first pump body 21, the second support frame 527 is provided with a third accommodating cavity 5222 for accommodating the hot water container 42, and the purified water container 41 partially surrounds the first support frame 526. An outer wall of the second accommodating cavity 5221 (i.e. an outer wall of the first support frame 526), an outer wall of the third accommodating cavity 5222 (i.e. an outer wall of the second support frame 527), and an outer wall of the filter element seat 523 form a fourth accommodating cavity 5223, and the purified water container 41 is arranged in the fourth accommodating cavity 5223. As shown, Figures 1 to 4 As shown, the front side plate 525 of the inner housing 52 is located at a side of the hot water container 42 away from the purified water container 41, and an outer wall of the third accommodating cavity 5222 and an inner wall of the front side plate 525 form a fifth accommodating cavity 5224, and the heating element 6 of the main machine 100 is arranged in the fifth accommodating cavity 5224. The second accommodating cavity 5221, the third accommodating cavity 5222, the fourth accommodating cavity 5223, and the fifth accommodating cavity 5224 jointly form a second accommodating area 522.

[0306] Further, as shown, Figure 2 and Figure 3 As shown, the cavity wall of the second accommodating cavity 5221 and the outer wall of the first pump body 21 are matched in shape, the cavity wall of the third accommodating cavity 5222 and the outer wall of the hot water container 42 are matched in shape, and the cavity wall of the fourth accommodating cavity 5223 and the outer wall of the purified water container 41 are matched in shape, so as to make full use of the internal space of the inner housing 52.

[0307] In an embodiment, as shown, Figure 5 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 arranged in sequence along the second direction b, and the second filter element 32 is arranged above the first filter element 31 and the third filter element 33. As shown, Figure 13 As shown, 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 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 reduce the height of the filter element assembly 3, and at the same time, can avoid that the space between the first filter element 31 and the third filter element 33 is excessively increased due to the second filter element 32 excessively extending into the space formed by the first filter element 31 and the third filter element 33 in the second direction b.

[0308] Further, as shown, 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 cross-sectional centers of the three filter elements 31, 32 and 33 form an isosceles triangle in the cross section of the filter element assembly 3, which is conducive to compact arrangement and helps to reduce the occupied space of the filter element assembly 3.

[0309] Further, as shown in Figure 5 and Figure 13 , the first filter element 31 and the third filter element 33 have the same diameter, which is smaller than the diameter of the second filter element 32. Specifically, the first filter element 31 is a filter element composed of PP cotton and activated carbon rod, which is used to intercept silt, rust and other large particles, adsorb color and odor, and remove residual chlorine; the second filter element 32 is a RO reverse osmosis membrane filter element, which is used to remove harmful substances such as heavy metals, bacteria, viruses, microorganisms, nitrate, chloroform and carbon tetrachloride in water; and the third filter element 33 is used to inhibit microorganisms and improve taste. Among them, the second filter element 32 has a larger size. In order to arrange the first filter element, the second filter element 32 and the third filter element 33 compactly, the first filter element 31 and the third filter element 33 are configured to have the same diameter, 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.

[0310] Further, as shown in Figure 13 , 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.

[0311] In an embodiment, as shown in Figure 1 and Figure 4 , the first accommodating area 521 includes a first filter element accommodating cavity 5211 for accommodating the first filter element 31, a second filter element accommodating cavity 5212 for accommodating the second filter element 32, and a third filter element accommodating cavity 5213 for accommodating the third filter element 33. The cavity walls of the three filter element accommodating cavities 5211, 5212 and 5213 are sequentially connected end to end to form the first accommodating area 521. That is, the first filter element accommodating cavity 5211, the second filter element accommodating cavity 5212 and the third filter element accommodating cavity 5213 are in communication with each other, which is conducive to arranging the first filter element 31, the second filter element 32 and the third filter element 33 as close to each other as possible, and further conducive to the miniaturization design of the filter element seat 523 and the reduction of the occupied space of the filter element seat 523.

[0312] Further, as shown in Figure 4 and Figure 5As shown, the cavity wall of the first filter element accommodating cavity 5211 and the circumferential wall of the first filter element 31 are shaped to match, 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 and the circumferential wall of the second filter element 32 are shaped to match, 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 and the circumferential wall of the third filter element 33 are shaped to match, 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.

[0313] Further, as shown, Figures 2 to 4 the outer wall and the inner wall of the filter element seat 523 are substantially the same in profile, which is conducive to reducing the occupied space of the filter element seat 523, and the outer wall of the filter element seat 523 can be formed with a recess 5231, which can be used to accommodate other internal components, such as the third waterway 16 of the waterway assembly 1 and the third pump body 22 arranged on the third waterway 16, thereby improving space utilization.

[0314] In an embodiment, as shown in Figure 3 and Figure 13 the front side plate 525 is provided with three openings 5251, and the three openings 5251 are in one-to-one communication with the first filter element accommodating cavity 5211, the second filter element accommodating cavity 5212 and the third filter element accommodating cavity 5213, respectively; the first filter element 31, the second filter element 32 and the third filter element 33 are assembled through the corresponding openings 5251, respectively.

[0315] Further, as shown, Figure 24 the integrated waterway component 7 is provided with three first clamping grooves 71, and the first clamping grooves 71 are provided with first matching valves 79. As shown in Figure 1 , Figure 3 and Figure 24 the three first clamping grooves 71 are arranged one-to-one corresponding to the three openings 5251, respectively, and the first end of each filter element of the filter element assembly 3 is clamped in the corresponding opening 5251 and the tail end is clamped in the corresponding first clamping groove 71, that is, the two ends of the corresponding filter element are clamped through the corresponding openings 5251 and first clamping grooves 71, respectively, which is convenient to assemble, and the second matching valve of each filter element is inserted and matched with the corresponding first matching valve 79, so that the filter element can communicate with the corresponding flow channel on the integrated waterway component 7, so that water flow can enter and exit the filter element.

[0316] In an embodiment, as shown in Figures 7 to 10As shown, each filter element of the filter element assembly 3 is configured with a locking assembly 34 and an unlocking member 35, the locking assembly 34 is used to lock the corresponding filter element in the inner housing 52, and the unlocking member 35 is used to unlock the locking assembly 34 to dismount the corresponding filter element for replacement.

[0317] Further, as shown in Figures 7 to 10 the unlocking member 35 is movably connected to the corresponding filter element, and 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 the locking member 341 has a locking position and an unlocking position. The elastic member 342 applies an elastic force to the locking member 341 to keep the locking member 341 in the locking position, at which the locking member 341 can limit the corresponding filter element from being pulled out, thereby achieving locking. The unlocking member 35 can be moved under external force to drive the locking member 341 to overcome the elastic force and move to the unlocking position, at which the locking member 341 releases the limitation on the corresponding filter element, and the user can pull out the corresponding filter element.

[0318] In an embodiment, when the locking member 341 is in the locking position, the locking member 341 is at least partially located in the pull-out path of the corresponding filter element, thereby preventing the filter element from being pulled out, thereby achieving locking; when the locking member 341 is in the unlocking position, the locking member 341 is away from the pull-out path, and the user can pull out the corresponding filter element. Specifically, the filter element is cylindrical, and the axial direction of the filter element is parallel to the first direction a, and when the filter element needs to be replaced, the filter element is pulled out or inserted along the first direction a, which is convenient for operation. The part of the structure of the locking member 341 is located in the pull-out path of the corresponding filter element, which means that the part of the structure is located in front of the corresponding filter element in the pull-out direction, and when the filter element has a tendency to move in the pull-out direction relative to the corresponding filter element receiving cavity, the filter element abuts against the locking member 341, thereby being unable to be pulled out. The pull-out path can specifically refer to the spatial region passed through by the filter element during the process of pulling out the filter element from the beginning to the end. The end of pulling out refers to the tail of the filter element being completely in the corresponding filter element receiving cavity.

[0319] Further, as shown in Figure 8 and Figure 10 the locking member 341 is a lock, and the locking assembly 34 further includes a clamping groove 343 provided on the corresponding filter element. When the locking member 341 is in the locking position, the locking member 341 is clamped in the clamping groove 343, and the locking of the corresponding filter element is achieved by the clamping of the two, and the locking structure is simple and stable. When the locking member 341 is in the unlocking position, the locking member 341 is away from the clamping groove 343, and the limitation is released.

[0320] Further, as shown in Figure 7 and Figure 8As shown, the locking assembly 34 further comprises a pivot shaft 344 mounted to the front side plate 525. The locking piece 341 is mounted to the front side plate 525 through the pivot shaft 344 away from the hot water container 42, and the locking piece 341 is capable of rotating around the pivot shaft 344 under external force, thereby switching between the locking position and the unlocking position. Specifically, as shown in Figure 8 and Figure 12 As shown, the locking piece 341 is provided with two pivot arms 3412 spaced apart along the second direction b, and the two pivot arms 3412 are respectively pivoted to the pivot shaft 344. The elastic piece 342 can be a torsion spring, which is sleeved on the corresponding pivot shaft 344 and located between the two pivot arms 3412.

[0321] Further, as shown in Figures 7 to 10 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 piece 35 comprises a handle portion 351 and a first mounting portion 352, and the first mounting portion 352 is rotatably connected in 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 a buckling groove 343. The locking piece 341 is locked by locking the filter element end cover 36.

[0322] Further, as shown in Figure 8 and Figure 10 The locking piece 341 comprises a locking protrusion 3411, which is buckled in the buckling groove 343 and the buckling surface 3521. The first mounting portion 352 is provided with a pushing surface 3522. The user pulls the handle portion 351 to drive the first mounting portion 352 to rotate, so that the buckling surface 3521 is separated from the locking protrusion 3411 due to rotation. Then, the pushing surface 3522 in the rotation process pushes the locking protrusion 3411, so that the locking piece 341 rotates around the corresponding pivot shaft 344, thereby making the locking protrusion 3411 separate from the buckling groove 343, that is, the locking piece 341 leaves the locking position and is unlocked.

[0323] Further, as shown in Figure 9 The first mounting portion 352 is provided with an axle hole 3523, and the filter element end cover 36 is provided with a mounting shaft 362 located in the first groove 361. The first mounting portion 352 and the filter element end cover 36 are assembled by rotatably connecting the axle 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.

[0324] In an embodiment, as shown in Figure 7 and Figure 8As shown, two locking members 341 are arranged on each radial side of each filter element to ensure the stability of the locking.

[0325] Further, as shown in Figure 8 , Figure 11 and Figure 12 , the two locking members 341 between the first filter element 31 and the third filter element 33 are pivoted to the same pivot shaft 344 to reduce the space occupied by the two locking members 341. Specifically, one of the locking members 341 has a larger size in the first direction a than the other locking member 341, and the two pivot arms 3412 of the larger one are respectively located outside the two pivot arms 3412 of the smaller one, and the elastic member 342 is sleeved on the pivot shaft 344 and located between the two pivot arms 3412 of the smaller one, and the two ends of the elastic member 342 are respectively abutted against the two locking members 341.

[0326] In an embodiment, as shown in Figure 14 and Figure 15 , the hot water container 42 comprises a tank body 421 and a second pump body 422, the tank body 421 is provided with a water storage cavity 4213 and a first water outlet 4211 communicating with the bottom of the water storage cavity 4213, and the second pump body 422 is transversely arranged below the tank body 421 to save space. The second pump body 422 comprises a second water outlet 4221, a pump cavity 4222 and a second water inlet 4223 which are sequentially communicated, the second water inlet 4223 is communicated with the first water outlet 4211, and the water flow in the tank body 421 sequentially passes through the first water outlet 4211 and the second water inlet 4223 to enter the pump cavity 4222, and then is pumped out through the second water outlet 4221. In addition, since the delivery object of the second pump body 422 is hot water, there is a large amount of steam in the pump cavity 4222, and in the present scheme, the second water outlet 4221 is arranged at the top of the pump cavity 4222, so that the water flow in the pump cavity 4222 can discharge the steam in the pump cavity 4222 from the second water outlet 4221 while flowing, reducing or avoiding the generation of trapped gas.

[0327] By adopting the above technical scheme, the second pump body 422 is transversely arranged below the tank body 421 to save the space occupied by the hot water container 42 in the height direction of the cabinet 5, and the second water outlet 4221 is arranged at the top of the pump cavity 4222 to reduce or avoid the generation of trapped gas in the pump cavity 4222, so as to avoid the influence of trapped gas generation on the water output of the second pump body 422.

[0328] In an embodiment, as shown in Figure 15 and Figure 17As shown, the second pump body 422 comprises a water outlet pipe 4224, which constitutes a second water outlet 4221 with the communicating port of the pump chamber 4222. The water outlet pipe 4224 is inclined upward from the second water outlet 4221, which is conducive to accelerating the steam discharge.

[0329] Further, the angle between the water outlet pipe 4224 and the horizontal plane is 5°-20°, and the steam discharge speed is preferably.

[0330] In an embodiment, as shown in Figure 15 and Figure 16 , the second pump body 422 comprises a front end cover 4225 and a second motor accommodating cylinder 4226, which is used to accommodate the motor and the 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 arranged on the front end cover 4225, which is convenient for processing.

[0331] Further, as shown in Figure 16 and Figure 17 , the outer periphery of the front end cover 4225 is provided with four first protruding portions 42251, and the outer periphery of the second motor accommodating cylinder 4226 is provided with four second protruding portions 42261. The first protruding portions 42251 and the second protruding portions 42261 are arranged one by one and connected by fasteners (such as screws). The second water outlet 4221 of the second pump body 422 is located below the first protruding portion 42251 at the highest position, which can avoid the interference of the first protruding portion 42251 at the highest position with the arrangement of the water outlet pipe 4224. In addition, the water outlet pipe 4224 does not protrude from the first protruding portion 42251, which is conducive to saving the occupied space of the second pump body 422 in the height direction of the machine shell 5. Preferably, as shown in Figure 17 , in order to stably assemble the front end cover 4225 and the second motor accommodating cylinder 4226, the four first protruding portions 42251 are uniformly spaced along the circumference of the second pump body 422. Of course, the number of first protruding portions 42251 is not limited to four, but can also be two, three or even more. The number of second protruding portions 42261 is consistent with the number of first protruding portions 42251.

[0332] In an embodiment, as shown in Figure 15 , the second pump body 422 is provided with a blocking rib 4227, which is arranged at the second water inlet 4223. When the hot water stream in the tank body 421 enters the pump chamber 4222 through the second water inlet 4223, the hot water stream will collide with the blocking rib 4227, that is, the blocking rib 4227 plays a role in dispersing the hot water stream, and the water-steam separation is realized by dispersing the hot water stream. In this way, the separated steam is discharged through the second water outlet 4221 under the action of water pressure, so as to better prevent the generation of trapped air.

[0333] Further, as shown inFigure 15 As shown, the blocking rib 4227 comprises an axially extending rib 42271 extending along the axial direction of the second pump body 422 and a radially extending rib 42272 extending along the radial direction of the second pump body 422, the number of the radially extending rib 42272 can be one, two or even more, in an embodiment, three radially extending ribs 42272 are evenly spaced along the circumference of the axially extending rib 42271 and connected to the axially extending rib 42271 respectively, the axially extending rib 42271 has a bullet head structure, the tip of the axially extending rib 42271 is opposite to the second water inlet 4223, which is conducive to better dispersing the hot water flow.

[0334] In an embodiment, as shown in Figure 15 and Figure 16 The hot water container 42 comprises a pump fixing frame 423, the second pump body 422 is installed on the bottom of the tank body 421 through the pump fixing frame 423.

[0335] Further, as shown in Figures 14 to 16 The pump fixing frame 423 comprises a support frame 4231 and an adapter pipe 4232, and the second pump body 422 comprises a water inlet pipe 4228. The second pump body 422 is arranged on the support frame 4231, and the two ends of the adapter pipe 4232 are in communication with the first water outlet 4211 and the second water inlet 4223 respectively, that is, the first water outlet 4211 and the second water inlet 4223 are connected through the adapter pipe 4232 instead of being directly connected, which 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 the processing cost. In addition, by limiting the length of the adapter pipe 4232, the heat loss during the process of transporting the hot water flow 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 the occupied space.

[0336] Further, as shown in Figure 15 The water inlet pipe 4228 is inserted into one end of the adapter pipe 4232, and a first sealing member 424 is arranged at the joint of the two, and the other end of the adapter pipe 4232 is inserted into the first water outlet 4211, and a second sealing member 425 is arranged at the joint of the two, so as to ensure the sealing of the whole system of the hot water container 42.

[0337] In an embodiment, as shown in Figures 14 to 16As shown, the support frame 4231 is an open structure, which semi-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 inserted into one end of the adapter pipe 4232, and the second motor accommodating cylinder 4226 is supported on the support frame 4231.

[0338] In an embodiment, as shown in Figure 14 and Figure 16 As shown, the outer periphery of the second pump body 422 is provided with a damping component 426 to reduce the noise generated when the second pump body 422 is running. Specifically, the damping component 426 surrounds the outer periphery of the second pump body 422, and the support frame 4231 fixes the second pump body 422 by clamping the damping component 426. The damping component 426 has a certain flexibility or elasticity, which can not only buffer the vibration generated by the second pump body 422, but also help reduce the processing accuracy requirement of the support frame 4231, that is, the deviation of the processing size of the support frame 4231 can be compensated by the deformation of the damping component 426.

[0339] Further, as shown in Figure 16 The support frame 4231 includes an arc-shaped slot 42311 and two support slots 42312, which are respectively connected to the two sides of the arc-shaped slot 42311. The arc-shaped slot 42311 is used to support the barrel of the second motor accommodating cylinder 4226, and the two support slots 42312 are used to respectively support the two pairs of first and second protruding parts 42251 and 42261 of the second pump body 422. As shown in Figure 14 and Figure 15 The bottom of the tank body 421 is mounted on the base 428, and the pump fixing frame 423 is mounted on the bottom of the base 428. As shown in Figure 15 and Figure 16 The arc-shaped slot 42311 is provided with a first through hole 423111, and the base 428 is provided with a second through hole 4281. The pair of first and second protruding parts 42251 and 42261 at the lowest position are inserted into the first through hole 423111, and the pair of first and second protruding parts 42251 and 42261 at the highest position are inserted into the second through hole 4281.

[0340] In an embodiment, as shown in Figure 6 The second pump body 422 is located at the bottom of the tank body 421 and close to one side of the tank body 421, so that the distance between the tank body 421 and the filter core assembly 3 in the height direction of the machine shell 5 can be minimized. 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 core assembly 3, the second pump body 422 can be partially located on one side of the filter core 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 core 32 of the filter core assembly 3.

[0341] Further, 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. In addition, as shown in Figure 6 and Figure 16 , the water outlet pipeline 4224 of the second pump body 422 is completely located below the tank body 421, and the space between the tank body 421 and the filter element assembly 3 is fully utilized to accommodate the water outlet pipeline 4224, so as to avoid the water outlet pipeline 4224 extending to the radial outside of the tank body 421 and interfering with the arrangement of other components.

[0342] In an embodiment, as shown in Figure 14 , the tank body 421 is provided with a heat preservation structure 4214, and the heat preservation structure 4214 circumferentially surrounds the water storage cavity 4213 to reduce the cooling speed of the hot water in the tank body 421.

[0343] Further, the tank body 421 has a double-layer vacuum structure, and the double-layer vacuum structure constitutes the heat preservation structure 4214. Specifically, as shown in Figure 14 , the heat preservation structure 4214 includes an outer layer tank body 42141 and an inner layer tank body 42142, and the outer layer tank body 42141, the vacuum cavity 42143 and the inner layer tank body 42142 cooperate to play a heat preservation role.

[0344] In an embodiment, the tank body 421 is provided with a liquid level detection mechanism 4215 for obtaining the liquid level information of the water storage cavity 4213.

[0345] Further, as shown in Figure 14 , 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), and the upper float 42151 and the lower float 42152 are both located in the water storage cavity 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 cavity 4213 changes, the liquid level sensor obtains the position information of the upper float 42151 and the lower float 42152 in the up-down direction to obtain the liquid level information of the water storage cavity 4213, so as to accurately control the storage amount of the hot water in the water storage cavity 4213.

[0346] Further, as shown in Figure 14As shown, the tank body 421 is provided with a mounting column 4216 which is parallel to the axis of the tank body 421, and the upper float 42151 and the lower float 42152 are movably mounted on the mounting column 4216. The mounting column 4216 has four limiters 4217 which are respectively arranged at a first position, a second position, a third position and a fourth position, wherein two limiters 4217 are used to limit the upper float 42151 to float up and down between the first position and the second position, and the other two limiters 4217 are used to limit the lower float 42152 to float up and down between the third position and the fourth position.

[0347] Further, the mounting column 4216 has a hollow portion (not shown in the figure) in which the liquid level sensor is mounted.

[0348] In an embodiment, as shown in Figure 14 The tank body 421 is provided with a temperature sensor 4218 which is used to obtain the water temperature information in the water storage cavity 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℃), or a range value (such as 82-88℃).

[0349] In an embodiment, as shown in Figure 29 and Figure 30 The water purifier 1000 further comprises a water dispenser 900 which is used to dispense water to the outside. As shown in Figure 18 The main machine 100 comprises a waterway assembly 1 which comprises a hot water supply waterway 12 and a backflow waterway 13, two ends of the hot water supply waterway 12 are respectively communicated with the water dispenser 900 and the hot water container 42, and two ends of the backflow waterway 13 are respectively communicated with the water dispenser 900 and the hot water container 42. The hot water in the hot water container 42 flows into the water dispenser 900 through the hot water supply waterway 12, and is dispensed through the water dispenser 900. When the backflow waterway 13 is opened, at least part of the water remaining in the water dispenser 900 flows back to the hot water container 42 through the backflow waterway 13, so as to reduce the residual water content in the water dispenser 900. Of course, the water flowing back through the backflow waterway 13 is not limited to flowing back to the hot water container 42, but can also flow back to other containers (such as another configured backflow container), or flow back to a waste water pipeline.

[0350] By adopting the above technical scheme, by additionally arranging the backflow waterway 13 between the purified water dispenser 900 and the hot water container 42, when the backflow waterway 13 is opened, at least part of the residual water in the purified water dispenser 900 can flow back to the tank body 421 of the hot water container 42 through the backflow waterway 13, thereby reducing the residual water amount in the purified water dispenser 900, reducing the hot water waiting time when hot water is taken next time, reducing the cold water outflow amount, improving the water temperature accuracy, improving the customer experience and reducing water resource waste. In addition, the hot water also performs high-temperature sterilization treatment on the waterway during backflow, and the drinking water is healthier.

[0351] In an embodiment, the purified water dispenser 900 is located outside the main machine 100, and the purified water dispenser 900 and the main machine 100 are connected through the connecting pipe.

[0352] In another embodiment, the purified water dispenser 900 can also be located mostly in the main machine 100, and the water outlet end of the dispensing port 923 can be located outside the main machine 100.

[0353] In an embodiment, as shown in Figure 18 , the waterway assembly 1 comprises a first valve 141 arranged on the backflow waterway 13. When the first valve 141 is closed, the backflow waterway 13 is blocked. When the first valve 141 is opened, the backflow waterway 13 is opened. At this time, if there is residual hot water in the purified water dispenser 900, at least part of the residual water in the purified water dispenser 900 can flow back to the hot water container 42 through the backflow waterway 13 due to the opening of the backflow waterway 13.

[0354] In an embodiment, as shown in Figure 18 , the hot water container 42 comprises a tank body 421 and a second pump body 422. The second pump body 422 is arranged on the hot water supply waterway 12 and is used to pump the water in the tank body 421 of the hot water container 42. Specifically, as shown in Figure 15 and Figures 18 to 20 , the second water outlet 4221 of the second pump body 422 is in communication with 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.

[0355] In an embodiment, as shown in Figures 18 to 20 , the purified water dispenser 900 comprises a liquid buffer cavity 91 and a dispensing head 92 in communication. The liquid buffer cavity 91 is used to temporarily store liquid. The hot water supply waterway 12 and the liquid buffer cavity 91 are in communication, and the hot water of the hot water supply waterway 12 flows into the dispensing head 92 through the liquid buffer cavity 91.

[0356] Further, as shown in Figures 18 to 20As shown, the backflow water path 13 and the liquid storage cavity 91 are communicated, before the water dispenser 900 dispenses water, the backflow water path 13 is opened, the hot water container 42, the hot water supply water path 12, the liquid storage cavity 91 and the backflow water path 13 are sequentially communicated and constitute a preheating circulating water path; under the power provided by the second pump body 422, the preheating circulating water path forms a preheating water circulation, so that the residual water in the liquid storage cavity 91 flows back to the hot water container 42 through the backflow water path 13, and the hot water supply water path 12 and the liquid storage cavity 91 are filled with hot water, so that the user can immediately get hot water when triggering the water taking switch 921, reducing the hot water waiting time.

[0357] In an embodiment, when the opening condition of the backflow water path 13 is reached, the backflow water path 13 is opened, and the water in the liquid storage cavity 91 flows back to the hot water container 42 through the backflow water path 13. When the closing condition of the backflow water path 13 is reached, the backflow water path 13 is blocked. The opening condition includes: the preheating water circulation starts; the closing condition includes: the preheating water circulation ends. Through the preheating water circulation, the residual water in the liquid storage cavity 91 flows back to the hot water container 42 through the backflow water path 13.

[0358] In an embodiment, when the water dispenser 900 dispenses water, the backflow water path 13 is blocked to avoid interfering with the user taking water. When the water dispenser 900 stops dispensing hot water, the backflow water path 13 is opened, and the water in the liquid storage cavity 91 flows back to the hot water container 42 through the backflow water path 13, to reduce the amount of residual water in the water dispenser 900. It should be understood that when the dispensing head 92 is directly communicated with the liquid storage cavity 91, if a small amount of water needs to be left at the dispensing port 923 of the water dispenser 900 each time to form a liquid seal, the water dispenser 900 stores the liquid seal water, and the rest of the water flows back to the tank body 421 of the hot water container 42 through the backflow water path 13, and the content of the liquid seal water can also be ignored. If the dispensing port 923 of the water dispenser 900 is isolated from the outside air in other ways or is not isolated from the outside air each time after taking water, all the remaining water in the water dispenser 900 can flow back to the tank body 421 of the hot water container 42 through the backflow water path 13, achieving the effect of zero waiting, zero stale water and zero cold water when taking hot water. Further, as shown, the liquid storage cavity 91, the backflow water path 13 and the hot water container 42 are sequentially arranged from top to bottom, and there is a height difference between them, which utilizes the height difference to make the water flow in the liquid storage cavity 91 flow back to the hot water container 42 through the backflow water path 13, and the backflow structure is simple. Of course, the structure of the backflow power constituting the backflow water path 13 is not limited thereto, and a small power pump can also be provided on the backflow water path 13 to provide the backflow power. Figure 29

[0359] In an embodiment, as shown, the liquid storage cavity 91, the backflow water path 13 and the hot water container 42 are sequentially arranged from top to bottom, and there is a height difference between them, which utilizes the height difference to make the water flow in the liquid storage cavity 91 flow back to the hot water container 42 through the backflow water path 13, and the backflow structure is simple. Of course, the structure of the backflow power constituting the backflow water path 13 is not limited thereto, and a small power pump can also be provided on the backflow water path 13 to provide the backflow power. Figure 30 ​As shown, the dispensing head 92 comprises a trigger element and a water taking switch 921. When the trigger element is operated and the water taking switch 921 is in an unopened state, the second pump body 422 operates to start the preheated water circulation.

[0360] Further, as shown in Figure 20 the dispensing head 92 comprises a temperature selection operating element 922, which constitutes the trigger element. When water taking is needed, the user first operates the temperature selection operating element 922 to select the water temperature, and at the moment when the temperature selection operating element 922 is operated, the second pump body 422 operates, and the preheated water circulation starts.

[0361] Further, the preheated water circulation is configured to reach the preset temperature value of the hot water in the hot water supply waterway 12 when the preheated water circulation is executed for 3-5 seconds or one cycle. The user usually needs 3-5 seconds to operate the temperature selection operating element 922, and when the user selects the water temperature, the temperature of the hot water in the hot water supply waterway 12 has reached the preset temperature value, and the user can immediately operate the water taking switch 921 to take water, and the hot water supply is fast.

[0362] In an embodiment, the temperature selection operating element 922 and the water taking switch 921 are in the form of a touch key or a mechanical button or a knob, but are not limited thereto.

[0363] In an embodiment, the upper surface of the dispensing head 92 is a touch screen, which comprises an indicator light (not shown in the figure), which can be used to indicate the positions of the temperature selection operating element 922 and the water taking switch 921 and other indication information (such as a countdown length for water taking). When the touch screen is in an initial state, the indicator light is half bright, so that the user can see the positions of the temperature selection operating element 922 and the water taking switch 921. When the touch screen is touched, the indicator light is fully bright, so that the indication information is more clearly presented.

[0364] In an embodiment, as shown in Figure 22 and Figures 18 to 22 the liquid buffer cavity 91 comprises 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. As shown in Figure 18As shown, the hot water supply waterway 12 is connected to the first communication port 911, and the backflow waterway 13 is connected to the second communication port 912; one end of the dispensing head 92 is provided with a dispensing port 923, and the other end of the dispensing head 92 is connected to the third communication port 913. When the preheating circulation waterway is formed by the hot water container 42, the hot water supply waterway 12, the liquid storage cavity 91 and the backflow waterway 13 in sequence, the hot water in the hot water container 42 is delivered to the liquid storage cavity 91 through the hot water supply waterway 12 and the first communication port 911. Since the first communication port 911 and the second communication port 912 are located below the third communication port 913, the hot water in the liquid storage cavity 91 flows into the backflow waterway 13 through the second communication port 912, and is not easy to flow out of the third communication port 913 upward.

[0365] In an embodiment, the heating element 6 is arranged on the hot water supply waterway 12, and the second pump body 422 is arranged on the waterway 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 waterway 12.

[0366] Further, as shown, Figure 18 The hot water supply waterway 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 storage cavity 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 clean 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 storage cavity 91 are sequentially connected in the water flow direction.

[0367] The waterway assembly 1 includes a second waterway 15 and a second valve 142. The water outlet end of the second waterway 15 is connected to the hot water container 42, the first water outlet end of the second valve 142 is connected to the water inlet end of the first hot water pipe 121, the second water outlet end of the second valve 142 is connected to the second waterway 15, and the water inlet end 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 taking of the water purifier 1000 is not started, the first water outlet end of the second valve 142 is in a closed state, the second water outlet end is in an open state, the heating element 6 and the second pump body 422 are started, the water in the hot water container 42 enters the heating element 6 through the second hot water pipe 122, is heated by the heating element 6, and then flows into the hot water container 42 through the second waterway 15 to form a heating circulation waterway, 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 an open state, the second water outlet end of the second valve 142 is in a closed state, and the water in the hot water container 42 sequentially passes through the second hot water pipe 122, the heating element 6 and the first hot water pipe 121, and then enters the liquid storage cavity 91, which is then dispensed by the dispensing head 92.

[0368] In an embodiment, as shown in Figure 18 The filter core assembly 3 is arranged on the first water path 11, and an outlet end of the first water path 11 is communicated with the purified water dispenser 900 to supply purified normal-temperature water which can be directly drunk by the user. The normal-temperature water is related to the current ambient temperature, and the specific value is not limited.

[0369] Further, as shown in Figure 22 and Figure 18 The outlet end of the first water path 11 is communicated with the fourth communication port 914 of the liquid buffer cavity 91, and the first water path 11 is used to supply normal-temperature water into the liquid buffer cavity 91. The preset temperature value T1 in the hot water container 42 is set to be T1, the temperature of the normal-temperature water supplied by the first water path 11 is T2, and the target temperature of the water taken is T m . The preset temperature value T1 in the hot water container 42 is 82-88℃, and preferably 85℃, which can avoid the occurrence of boiling water in the hot water container 42.

[0370] The water taking includes the following four modes:

[0371] (1) When T m =T1, the user takes the second-grade hot water (for example, 85℃ water) as the target, the hot water in the hot water container 42 can be directly taken, and the water flow in the hot water container 42 flows into the dispensing head 92 through the hot water supply path 12 and the liquid buffer cavity 91 in turn, and is dispensed to the user through the dispensing head 92.

[0372] (2) When T m =T2, the user takes the normal-temperature water as the target, the normal-temperature water in the first water path 11 can be directly taken, and the water flow in the first water path 11 flows into the dispensing head 92 through the liquid buffer cavity 91, and is dispensed to the user through the dispensing head 92.

[0373] (3) When T2 m <T1, the user takes the first-grade hot water (for example, 45℃) as the target, the water temperature of which is between the water temperature in the hot water container 42 and the water temperature of the normal-temperature water, the hot water flow in the hot water container 42 and the normal-temperature water flow in the first water path 11 are mixed in the liquid buffer cavity 91, and by controlling the mixing amount of the normal-temperature water and the hot water, the water flow with the required water temperature (for example, 45℃) is obtained, that is, the water flow with the temperature of T m flows into the dispensing head 92, and is dispensed to the user through the dispensing head 92.

[0374] (4) When T m >T1, the user takes the third-grade hot water (for example, 95℃) as the target, the water temperature of which exceeds the water temperature in the hot water container 42, the water flow in the hot water container 42 is heated to the required temperature through the heating element 6, and then flows into the dispensing head 92 through the liquid buffer cavity 91, and is dispensed to the user through the dispensing head 92.

[0375] In this embodiment, the water purifier 1000 can provide four temperature ranges of drinking water, from low to high, normal temperature water, first-grade hot water (39-46℃), second-grade hot water (82-88℃) and third-grade hot water (97-99℃). The first-grade hot water can be used to make milk or directly drink, the second-grade hot water can be used to brew objects including but not limited to green tea or scented tea, and the third-grade hot water can be used to brew objects including but not limited to black tea or white tea. When the third-grade hot water (97-99℃) is needed, the second-grade hot water (82-88℃) is heated by the heating element 6 and then supplied, and the heating speed is fast, and the high-temperature water is quickly taken.

[0376] In an embodiment, as shown in Figure 18 The communication part between the outlet end of the first water path 11 and the liquid buffer cavity 91 is provided with a first check valve 171, which is used to prevent the water in the liquid buffer cavity 91 from flowing into the first water path 11.

[0377] In an embodiment, as shown in Figure 18 The inlet end of the purified water container 41 is in communication with the first water path 11, and the outlet end of the purified water container 41 is in communication with the hot water supply water path 12 through the third water path 16, and the third water path 16 is provided with a third pump body 22. When the liquid level in the purified water container 41 is lower than the preset purified water liquid level value and the water purifier is not opened to take water, the first pump body 21 operates to make the water in the first water path 11 flow into the purified water container 41 after being purified by the filter element assembly 3, so as to supplement the purified water. When the liquid level in the hot water container 42 is lower than the preset hot water liquid level value and the water purifier is not opened to take water, the third pump body 22 operates to make the water in the purified water container 41 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 through the second water path 15, so as to supplement the hot water.

[0378] Further, as shown in Figure 18 The third water path 16 is connected with the hot water supply water path 12 through a third valve 143. Specifically, the third valve 143 is a three-way valve, the outlet end of the third valve 143 is in communication with the heating element 6, the first inlet end of the third valve 143 is in communication with the second hot water pipe 122, and the second inlet end of the third valve 143 is in communication with the third water path 16. Normally, when the user takes water, the first inlet end of the third valve 143 is opened and the second inlet end is closed, and the hot water container 42 supplies hot water to the purified water dispenser 900. When the user takes hot water, it may occur that there is no hot water or the hot water storage amount is not enough in the hot water container 42, and the first inlet end of the third valve 143 is closed and the second inlet end is opened. The water in the purified water container 41 flows into the heating element 6 through the third water path 16 under the power provided by the third pump body 22, and is directly supplied to the purified water dispenser 900 after being heated by the heating element 6.

[0379] In an embodiment, the third pump body 22 is a diaphragm pump.

[0380] In an embodiment, as shown in Figure 19 and Figure 18 , the hot water container 42 is provided with a first exhaust pipe 427, and the outlet of the first exhaust pipe 427 is communicated with a second exhaust pipe 93 provided on the clean water dispenser 900, so as to ensure pressure balance of the hot water container 42.

[0381] Further, as shown in Figure 18 , the clean water container 41 is provided with a third exhaust pipe 412, and the outlet of the third exhaust pipe 412 is communicated with the first exhaust pipe 427, so as to ensure pressure balance of the clean water container 41.

[0382] In an embodiment, the hot water supply waterway 12 is a Teflon pipe, which has good heat preservation performance.

[0383] In an embodiment, as shown in Figure 18 , the filter element assembly 3 comprises 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 water flow, and the third filter element 33 is used to inhibit microorganisms and / or improve taste. The waterway assembly 1 comprises a first waste water waterway 181, and the water inlet end of the first waste water waterway 181 is communicated with the waterway between the second filter element 32 and the third filter element 33, and the first waste water waterway 181 is used to discharge waste water discharged from the second filter element 32.

[0384] Further, as shown in Figure 19 , the waterway assembly 1 comprises a second waste water waterway 182, and the water inlet end of the second waste water waterway 182 is communicated downstream of the third filter element 33, when the filter element assembly 3 needs to be cleaned, the water source enters the first waterway 11, and then passes through the first filter element 31, the second filter element 32 and the third filter element 33 in sequence, and the three filter elements are cleaned respectively, and the waste water after cleaning is discharged through the second waste water waterway 182. A second check valve 172 is arranged on the second waste water waterway 182, which is used to prevent backflow of external waste water through the second waste water waterway 182.

[0385] In an embodiment, as shown in Figure 19As shown, the clean water dispenser 900 comprises a dispensing port 923 for water outlet, a water outlet channel 924 having two ends respectively communicating with the dispensing port 923 and the water supply port of the waterway assembly 1 of the main machine 100, and a first water blocking structure 925 arranged on the bottom wall of the water outlet channel 924. The second bottom wall 9242, the first water blocking structure 925 and the first bottom wall 9241 are sequentially arranged along the water flow direction. The first bottom wall 9241 is downwardly inclined towards the dispensing port 923, and the second bottom wall 9242 is downwardly inclined away from the dispensing port 923.

[0386] By adopting the above technical scheme, the first water blocking structure 925 is arranged 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 taking to form a liquid seal. External air cannot penetrate into the clean water dispenser 900 through the liquid seal, thereby avoiding the breeding of bacteria and ensuring the health of drinking water. At the same time, by configuring the first bottom wall 9241 to be downwardly inclined towards the dispensing port 923, the water outlet is ensured to be smooth. By configuring the second bottom wall 9242 to be downwardly inclined away from the dispensing port 923, the water in the channel on the side of the first water blocking structure 925 away from the dispensing port 923 can flow back after each water taking, thereby reducing the accumulation of standing water in the water outlet channel 924, and further reducing the waiting time for the next hot water taking and improving the accuracy of the hot water outlet temperature. In addition, the arrangement of the first water blocking structure 925 and the first bottom wall 9241 can also play a role in water vapor separation, thereby avoiding water splashing during the water outlet process of the dispensing port 923 due to the presence of water vapor.

[0387] In an embodiment, as shown in Figure 19 The second bottom wall 9242, the first water blocking structure 925 and the first bottom wall 9241 are sequentially connected. With the first water blocking structure 925 as a boundary, the side of the first water blocking structure 925 towards the dispensing port 923 can ensure smooth water outlet, i.e., when the water flow in the water outlet channel 924 flows over the first water blocking structure 925, it immediately flows towards the dispensing port 923 under the guidance of the first bottom wall 9241 during water taking. The side of the first water blocking structure 925 away from the dispensing port 923 can promote backflow, i.e., after water taking, the water flow on the side of the first water blocking structure 925 away from the dispensing port 923 immediately flows back under the guidance of the second bottom wall 9242.

[0388] Further, as shown in Figure 19 The second bottom wall 9242 is higher than the first bottom wall 9241, which facilitates the water flow to quickly flow over the first water blocking structure 925 during water taking.

[0389] In an embodiment, as shown in Figure 19As shown, the bottom wall of the water outlet passage 924 is upwardly protruded to form the first water blocking structure 925, which is easy to process.

[0390] In an embodiment, as shown in Figure 21 and Figure 19 , the water purifying dispenser 900 comprises a gas blocking structure 926 and a second water blocking structure 92311, the gas blocking structure 926 is arranged on the top wall of the water outlet passage 924, and the gas blocking structure 926 is located between the dispensing port 923 and the first water blocking structure 925, and the second water blocking structure 92311 is located at the dispensing port 923. The height h1 of the top wall of the first water blocking structure 925 is higher than the height h2 of the bottom wall of the gas blocking structure 926, and h1 is configured to be able to partially block the water backflow in the water outlet passage 924 to form a pre-stored water with a preset liquid level h3 between the first water blocking structure 925 and the second water blocking structure 92311, and h2 < h3 < h1, so that the pre-stored water forms a water seal at the gas blocking structure 926, thereby being able to prevent the exchange of gas on both sides of the gas blocking structure 926, so as to isolate air and prevent the growth of bacteria.

[0391] It should be understood that if the dispensing port 923 is located at one end of the water outlet passage 924, the structure is configured to be able to directly cover the end port of the dispensing port 923 with a small amount of water reserved due to the first water blocking structure 925, that is, the reserved water directly liquid seals the dispensing port 923, so that the gas blocking structure 926 is not needed.

[0392] Further, as shown in Figure 21 and Figure 19 , the outer wall of the dispensing port 923 constitutes the second water blocking structure 92311, and no separate parts are needed as the second water blocking structure 92311, which is beneficial to reduce the number of parts.

[0393] In an embodiment, as shown in Figures 19 to 21 , the top wall of the water outlet passage 924 is downwardly protruded to form the gas blocking structure 926, which is easy to process.

[0394] In an embodiment, as shown in Figure 19As shown, the water outlet passage 924 comprises a horizontal passage 9243 and a vertical passage 9244 which are connected to each other, the dispensing port 923 is communicated with the horizontal passage 9243, the liquid storage cavity 91 is communicated with the vertical passage 9244, and the first water retaining structure 925 is located in the horizontal passage 9243. The water dispenser 900 comprises a temperature controller 94, a detection end of the temperature controller 94 is located in the vertical passage 9244, and a lowest point D2 of the detection end is located above the liquid storage cavity 91 and below a top wall of the first water retaining structure 925. During the preheating water circulation, the hot water in the hot water container 42 is delivered to the liquid storage cavity 91 via the hot water supply waterway 12 and the first communication port 911, the hot water in the liquid storage cavity 91 flows into the backflow waterway 13 through the second communication port 912, and when the temperature controller 94 acquires temperature information, it indicates that the hot water in the liquid storage cavity 91 has a risk of overflowing from the third communication port 913 of the liquid storage cavity 91 or has already overflowed, then the second pump body 422 is closed to stop the preheating water circulation, and the water in the liquid storage cavity 91 flows back to the hot water container 42 via the backflow waterway 13.

[0395] In addition, the temperature controller 94 is also used to detect the temperature of the water flow during the normal water taking process, and if the temperature detected by the temperature controller 94 does not reach the preset value, the flow rate of the water flow or the mixing ratio of the normal temperature water and the hot water can be adjusted to make the temperature of the water flow reach the preset value, so as to provide drinking water with accurate required temperature.

[0396] Further, in an embodiment, when the preheating water circulation is stopped and the temperature controller 94 does not acquire temperature information, it indicates that the risk of overflow has been eliminated, and the second pump body 422 is opened to restore the preheating water circulation.

[0397] In another embodiment, when the preheating water circulation is stopped for a preset time length, it indicates that the risk of overflow has been eliminated, and the second pump body 422 is opened to restore the preheating water circulation.

[0398] In an embodiment, as shown in Figure 19 The water dispenser 900 comprises an ultraviolet sterilization element 95 located in the water outlet passage 924 and close to the dispensing port 923, which is used to sterilize the liquid seal water in the water outlet passage 924 and ensure the hygiene inside the water dispenser 900. Further, the ultraviolet sterilization element 95 is located between the dispensing port 923 and the first water retaining structure 925, and the ultraviolet sterilization element 95 is close to the dispensing port 923.

[0399] In an embodiment, as shown in Figure 20 The dispensing head 92 is substantially L-shaped to form the horizontal passage 9243 and the vertical passage 9244. As shown in Figure 20As shown, the second mounting portion 927 is inserted into the fourth communication port 914 of the liquid storage cavity 91, and the assembly of the two is provided with the third sealing member 96.

[0400] In an embodiment, as shown in Figure 22 and Figure 19 As shown, the water purifier 900 comprises a backwater structure 97, which is hollow inside to form the liquid storage cavity 91, and the water purifier 900 is provided in a multi-part assembly structure, which can reduce the complexity of individual parts, avoid causing the structure of the parts to be too complex to cause the complexity of the processing mold, and cause the processing cost to increase.

[0401] In an embodiment, as shown in Figure 21 、 Figure 23 and Figure 19 As shown, the distribution port 923 comprises a first distribution pipeline 9231, a second distribution pipeline 9232, and a plug 9233. The height h4 of the first distribution pipeline 9231 is higher than the height of the first water retaining structure 925, the first distribution pipeline 9231 has a first water distribution inlet 92312, the height h5 of the second distribution pipeline 9232 is higher than h4 of the first distribution pipeline 9231, and the outer wall of the first distribution pipeline 9231 constitutes a second water retaining structure 92311. The plug 9233 is inserted into part of the inlet of the second distribution pipeline 9232, the assembly of the plug 9233 and the second distribution pipeline 9232 forms a steam gap 9234, and the plug 9233 separates the inlet of the second distribution pipeline 9232 into a second water distribution inlet 92321 and the steam gap 9234.

[0402] In the present scheme, the water outlet mode of the distribution port 923 comprises the following two cases:

[0403] (1) When h4 < h6 ≤ h5, the water level in the water outlet channel 924 is h6, the water in the water outlet channel 924 enters the distribution port 923 through the first water distribution inlet 92312, and the steam in the water outlet channel 924 enters the distribution port 923 through the second water distribution inlet 92321 and is discharged outward.

[0404] (2) 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 steam in the water outlet channel 924 enters the distribution port 923 through the steam gap 9234 and is discharged outward. It should be understood that when the water flow is too large and too fast, part of the water flow may enter the distribution port 923 through the steam gap 9234, but the steam gap 9234 is mainly used to discharge the steam in the water outlet channel 924.

[0405] In an embodiment, as shown in Figure 21As shown, the first distribution pipe 9231 is located between the second distribution pipe 9232 and the first water blocking structure 925, so that when h4

[0406] In an embodiment, as shown in Figure 19 As shown, the distribution port 923 comprises an outlet passage 9235, the outlets of the first distribution pipe 9231 and the second distribution pipe 9232 are respectively communicated with the outlet passage 9235, and the purified water is distributed outside through the outlet passage 9235.

[0407] In an embodiment, as shown in Figure 30 As shown, the purified water dispenser 900 comprises a second exhaust pipe 93, the second exhaust pipe 93 is located in the distribution head 92 of the purified water dispenser 900, the outlet 931 of the second exhaust pipe 93 opens downward and is communicated with the atmosphere, and the first exhaust pipe 427 of the hot water container 42 is communicated with the inlet of the second exhaust pipe 93 to ensure the air pressure balance in the hot water container 42.

[0408] In an embodiment, as shown in Figure 19 As shown, the temperature selection operation member 922 of the distribution head 92 is a touch key, the water taking switch 921 is a rotary knob structure and the water taking switch 921 is a pressable structure, and the water taking switch 921 is located above the touch screen. When the user takes water, the water taking temperature is selected by touching the corresponding temperature selection operation member 922, and then the water taking switch 921 is pressed to start water taking; or the temperature is selected by rotating the water taking switch 921, and then the water taking switch 921 is pressed to start water taking. Of course, the structures of the temperature selection operation member 922 and the water taking switch 921 are not limited to this, and any form of selection operation member and switch structure can be applied to the present scheme.

[0409] In an embodiment, as shown in Figures 24 to 28 and Figure 26 As shown, the distribution head 92 comprises an inner core body 928 and an inner core cover 929, the inner core body 928 is provided with a groove structure 9281, and the inner core cover 929 is used to seal the groove structure 9281, and the inner core body 928 and the inner core cover 929 jointly enclose the water outlet passage 924. The first water blocking structure 925, the air blocking structure 926 and the distribution port 923 are integrally formed on 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 inserted into the first mounting seat 9291 and the ultraviolet emission end thereof is located in the water outlet passage 924, and the temperature controller 94 is screwed into the second mounting seat 9292 and the detection end thereof is located in the water outlet passage 924.

[0410] In an embodiment, as shown in Figure 27As shown, the integrated waterway component 7 includes a plurality of water pass-through openings and a plurality of flow channels. The plurality of water pass-through openings includes a raw water opening 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 waste water outlet 7243, a third filter element inlet 7251, a third filter element outlet 7252, a first purified water outlet 7261, a second purified water outlet 7262, and a waste water outlet 727. The plurality of flow channels includes a first flow channel 731 connecting the raw water opening 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 purified water outlet 7261, a sixth flow channel 736 connecting the third filter element outlet 7252 and the second purified 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 opening 721 is in communication with the first waterway 11 in the main machine 100, which is used to access the water source, the first purified water outlet 7261 is in communication with the purified water dispenser 900 of the purified water machine, and the second purified water outlet 7262 is in communication with the purified water container 41.

[0411] Further, as shown in Figure 24 and Figure 26 , the raw water opening 721, the first purified water outlet 7261, the second purified water outlet 7262, and the waste water outlet 727 are located at the upper part of the integrated waterway component 7, so as to arrange the corresponding waterway pipelines in the main machine 100 as much as possible at the upper position inside the cabinet 5, and make full use of the narrow space between the top wall of other components and the cabinet 5 to arrange the waterway pipelines.

[0412] Further, as shown in Figure 27 , Figure 24 and Figure 25 , the raw water opening 721, the waste water outlet 727, the second purified water outlet 7262, and the first purified water outlet 7261 are arranged in sequence along the width direction (i.e. the second direction b) of the integrated waterway component 7. Since the filter element assembly 3 is located downstream of the raw water opening 721 and upstream of the second purified water outlet 7262 and the first purified water outlet 7261, arranging the positions of the raw water opening 721, the waste water outlet 727, the second purified water outlet 7262, and the first purified water outlet 7261 according to the position of the filter element assembly 3 in the waterway is conducive to shortening the length of the waterway pipelines.

[0413] In an embodiment, as shown in Figure 25As shown, the top wall of the integrated waterway member 7 is provided with a mounting pipe 78, which is in communication with the raw water inlet 721, and the mounting pipe 78 is used to mount a low-pressure switch (not shown in the figure) for detecting whether the water source is out of water.

[0414] In an embodiment, as shown in FIG. 24 and Figure 25 As shown, the first filter element inlet 7221 and the first filter element outlet 7222 are respectively in communication with 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 waste water outlet 7243 are respectively in communication with 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 in communication with 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 a lower position inside the cabinet 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 waterway member 7, and the second filter element inlet 7241, the second filter element outlet 7242 and the second filter element waste water outlet 7243 are located at the middle part of the integrated waterway member 7, so as to facilitate the communication between the matched first matching valve and the second matching valve of the filter element.

[0415] Further, as shown in FIG. 24, Figure 25 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 sequentially arranged along the width direction of the integrated waterway member 7, and the second filter element inlet 7241, the second filter element outlet 7242 and the second filter element waste water outlet 7243 are sequentially arranged along the width direction of the integrated waterway member 7, so as to match the position setting of the corresponding filter element.

[0416] In an embodiment, as shown in FIG. 24, Figure 25 As shown, since the raw water inlet 721 and the first flow channel 731 are the most upstream of the entire waterway in the main machine 100, the first flow channel 731 is arranged close to the vertical side wall of the integrated waterway member 7, and the first flow channel 731 and the second flow channel 732 both extend along the vertical direction and are arranged adjacent to each other, which is conducive to the compact design of each flow channel.

[0417] Further, as shown in FIG. 24, Figure 18 The third flow channel 733 is in the shape of a U, the fourth flow channel 734 is in the shape of an L, 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 sequentially arranged along the width direction of the integrated waterway member 7, which is conducive to the compact design of each flow channel.

[0418] Further, as shown in FIG. 24, Figure 25As shown, the fifth flow channel 735 extends vertically, one end of the fifth flow channel 735 is inserted into the U-shaped region formed by the third flow channel 733 downward and the end is parallel to one end of the fourth flow channel 734, the other end of the fifth flow channel 735 extends upward, which is further conducive to the compact design of each flow channel.

[0419] In an embodiment, as shown in Figure 26 , Figure 25 and Figure 18 , 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, the fourth valve 144 is used to control the opening and closing of the fifth flow channel 735. When the user takes normal temperature water or the target temperature of the water taken is T m between the normal temperature water temperature T2 and the preset temperature value T1 in the hot water container 42, the fourth valve 144 is opened, otherwise, the fourth valve 144 is closed.

[0420] In an embodiment, as shown in Figure 25 , the sixth flow channel 736 is located on one side of the upper part of the fifth flow channel 735 and extends vertically, which is conducive to the compact design of each flow channel. As shown in Figure 26 , Figure 25 and Figure 18 , the integrated waterway component 7 includes a second valve interface 742, the second valve interface 742 is used to install a fifth valve 145, the fifth valve 145 is used to control the opening and closing of the sixth flow channel 736. When the water level in the clean water container 41 does not reach the preset clean water liquid level value, the fifth valve 145 is opened, and the water flow purified by the filter core assembly 3 enters the clean water container 41 through the sixth flow channel 736; when the water level in the clean water container 41 reaches the preset clean water liquid level value, the fifth valve 145 is in a closed state.

[0421] Further, as shown in Figure 25 , 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 sequentially arranged along the width direction of the integrated waterway component 7, which is conducive to the compact design of each flow channel.

[0422] Further, the eighth flow channel 738 partially overlaps the seventh flow channel 737. Specifically, the seventh flow channel 737 is used to transport the waste water discharged by the second filter core 32, and the eighth flow channel 738 is used to transport the waste water formed by cleaning the first filter core 31, the second filter core 32 and the third filter core 33. The two kinds of waste water can finally converge into the same waste water pipe and be discharged to the outside, so that the eighth flow channel 738 is configured to partially overlap the seventh flow channel 737, and the waste water in the eighth flow channel 738 flows to the waste water outlet 727 through the seventh flow channel 737, which is conducive to the compact design of each flow channel.

[0423] In an embodiment, as shown in Figure 26 ,Figure 18 and Figure 25 As shown in FIGS. 8, 9, and 10, the eighth flow passage 738 is provided with a third valve interface 743 for mounting a sixth valve 146 for controlling the opening and closing of the eighth flow passage 738. When the filter cartridge assembly 3 does not need to be cleaned, the sixth valve 146 is closed, and when the filter cartridge assembly 3 needs to be cleaned, the sixth valve 146 is opened so that the cleaned waste water is discharged out of the main machine 100 through the eighth flow passage 738.

[0424] In an embodiment, as shown in FIGS. 11, 12, and 13, the seventh flow passage 737 is provided with a fourth valve interface 744 for mounting a seventh valve 147 for controlling the opening and closing of the seventh flow passage 737. When the second filter cartridge 32 does not need to discharge waste water, the seventh valve 147 is closed, and when the second filter cartridge 32 needs to discharge waste water, the seventh valve 147 is opened. Figure 26 、 Figure 18 and Figure 25 As shown in FIGS. 8, 9, and 10, the eighth flow passage 738 is provided with a third valve interface 743 for mounting a sixth valve 146 for controlling the opening and closing of the eighth flow passage 738. When the filter cartridge assembly 3 does not need to be cleaned, the sixth valve 146 is closed, and when the filter cartridge assembly 3 needs to be cleaned, the sixth valve 146 is opened so that the cleaned waste water is discharged out of the main machine 100 through the eighth flow passage 738.

[0425] In an embodiment, as shown in FIGS. 11, 12, and 13, the seventh flow passage 737 is provided with a fourth valve interface 744 for mounting a seventh valve 147 for controlling the opening and closing of the seventh flow passage 737. When the second filter cartridge 32 does not need to discharge waste water, the seventh valve 147 is closed, and when the second filter cartridge 32 needs to discharge waste water, the seventh valve 147 is opened. Figure 26 、 Figure 18 and Figure 25 As shown in FIGS. 8, 9, and 10, the eighth flow passage 738 is provided with a third valve interface 743 for mounting a sixth valve 146 for controlling the opening and closing of the eighth flow passage 738. When the filter cartridge assembly 3 does not need to be cleaned, the sixth valve 146 is closed, and when the filter cartridge assembly 3 needs to be cleaned, the sixth valve 146 is opened so that the cleaned waste water is discharged out of the main machine 100 through the eighth flow passage 738.

[0426] In an embodiment, as shown in FIGS. 11, 12, and 13, the seventh flow passage 737 is provided with a fourth valve interface 744 for mounting a seventh valve 147 for controlling the opening and closing of the seventh flow passage 737. When the second filter cartridge 32 does not need to discharge waste water, the seventh valve 147 is closed, and when the second filter cartridge 32 needs to discharge waste water, the seventh valve 147 is opened. Figure 26 、 Figure 18 and Figure 28 As shown in FIGS. 8, 9, and 10, the eighth flow passage 738 is provided with a third valve interface 743 for mounting a sixth valve 146 for controlling the opening and closing of the eighth flow passage 738. When the filter cartridge assembly 3 does not need to be cleaned, the sixth valve 146 is closed, and when the filter cartridge assembly 3 needs to be cleaned, the sixth valve 146 is opened so that the cleaned waste water is discharged out of the main machine 100 through the eighth flow passage 738.

[0427] In an embodiment, as shown in FIGS. 11, 12, and 13, the seventh flow passage 737 is provided with a fourth valve interface 744 for mounting a seventh valve 147 for controlling the opening and closing of the seventh flow passage 737. When the second filter cartridge 32 does not need to discharge waste water, the seventh valve 147 is closed, and when the second filter cartridge 32 needs to discharge waste water, the seventh valve 147 is opened. Figure 24 and Figure 1As shown, the integrated waterway 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 the first TDS sensor interface 751 is configured to mount the first TDS sensor 81, which is configured to detect the water quality of the water flow in the second flow channel 732. The NTC sensor interface 752 is in communication with the fourth flow channel 734, and the NTC sensor interface 752 is configured to mount the NTC sensor 82, which is configured to detect the water temperature of the water flow in the fourth flow channel 734. The second TDS sensor interface 753 is in communication with the fourth flow channel 734, and the second TDS sensor interface 753 is configured to mount the second TDS sensor 83, which is configured to detect the water quality of the water flow in the fourth flow channel 734. The flow meter interface 754 is located downstream of the third filter core outlet 7252, and the flow meter interface 754 is configured to mount the flow meter 84, which is configured to detect the flow rate of the water flow purified by the filter core assembly 3.

[0428] In an 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.

[0429] In an embodiment, as Figure 24 shown, the integrated waterway component 7 includes a first plate body 76 and a second plate body 77, the wall thickness of the first plate body 76 and the second plate body 77 is 4 mm, the first plate body 76 and the second plate body 77 are welded by heat plate welding, the welding depth is ≥ 4 mm, which guarantees the structural strength and withstands a pressure of 3.2 Mpa. The first plate body 76 and the second plate body 77 jointly form a plurality of flow channels, and the integrated waterway component 7 is configured in a split structure, which facilitates the processing of the flow channel structure.

[0430] Further, as Figure 25 and Figure 26 shown, the first plate body 76 is located outside the second plate body 77, and the first clamping groove 71 is provided on the side of the second plate body 77 away from the first plate body 76. One end of each of the first filter core 31, the second filter core 32, and the third filter core 33 is clamped to the three first clamping grooves 71 on the second plate body 77, as Figure 27 shown, the first filter core inlet 7221, the first filter core outlet 7222, the first pump body inlet 7231, the first pump body outlet 7232, the second filter core inlet 7241, the second filter core outlet 7242, the second filter core wastewater outlet 7243, the third filter core inlet 7251, and the third filter core outlet 7252 are all provided on the second plate body 77. As Figure 25 and Figure 26 shown, the raw water inlet 721, the first purified water outlet 7261, the second purified water outlet 7262, the wastewater outlet 727, and the mounting pipe 78 are all provided on the second plate body 77.

[0431] In an embodiment, as shown in Figures 31 to 34 and Figures 31 to 34 the corners of the flow channel are all round structures, avoiding the breeding of bacteria due to residual water stains.

[0432] Second embodiment

[0433] The second embodiment of the water purifier of the present application will be described in detail below. Figures 32 to 34

[0434] The water purifier of the present embodiment is substantially the same as that of the first embodiment, and the differences between the two embodiments will be mainly described below.

[0435] In the present embodiment, as shown in Figure 20 the water purifier 900 comprises a mixing water chamber 972 and a liquid buffer chamber 91 and a normal temperature water chamber 971 which are not in communication with each other, and the liquid buffer chamber 91 is lower than the mixing water chamber 972. The water outlet end of the liquid buffer chamber 91 is in communication with the mixing water chamber 972, and the water inlet end of the liquid buffer chamber 91 is in communication with the hot water supply waterway 12 of the main machine 100 and the backflow waterway 13 of the main machine 100 respectively. The water outlet end of the normal temperature water chamber 971 is in communication with the mixing water chamber 972, and the water inlet end of the normal temperature water chamber 971 is in communication with the water outlet end of the first waterway 11 of the main machine 100.

[0436] When the water purifier 900 dispenses normal temperature water, the water flow of the first waterway 11 is delivered to the normal temperature water chamber 971 after being purified, enters the mixing water chamber 972 through the normal temperature water chamber 971, and is dispensed to the outside through the dispensing head 92 of the water purifier 900.

[0437] When the water purifier 900 needs to call 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 dispensed to the outside through the dispensing head 92 of the water purifier 900.

[0438] When the backflow waterway 13 is opened, the water in the liquid buffer chamber 91 enters the backflow waterway 13, and flows back to the hot water container 42 of the main machine 100 through the backflow waterway 13.

[0439] By adopting the above technical scheme, the water purifier 900 is provided with the mixing water chamber 972, the liquid buffer chamber 91 and the normal temperature water chamber 971, when hot water is taken, the hot water flows to the dispensing head 92 through the liquid buffer chamber 91. When the backflow waterway 13 is opened, the residual water in the liquid buffer chamber 91 flows back to the tank body 421 of the hot water container 42 through the backflow waterway 13, thereby reducing the amount of residual water in the water purifier 900, so that the waiting time for hot water can be reduced in the next time.

[0440] ​It should be understood that the water outlet end and the water inlet end of the liquid buffer cavity 91 and the water outlet end and the water inlet end of the normal temperature water cavity 971 are based on the water flow direction when the purified water dispenser 900 is in the normal water dispensing state. For example, when the purified water dispenser 900 needs to call hot water through the hot water supply waterway 12, the hot water in the hot water supply waterway 12 flows into the liquid buffer cavity 91 from the water inlet end of the liquid buffer cavity 91, and then the hot water in the liquid buffer cavity 91 flows into the mixed water cavity 972 from the water outlet end of the liquid buffer cavity 91.

[0441] In an embodiment, as shown in Figure 31 , the purified water dispenser 900 comprises a backwater structure 97, and the backwater structure 97 is integrally formed with the mixed water cavity 972, the liquid buffer cavity 91 and the normal temperature water cavity 971. In this scheme, by adding an independent part (backwater structure) to form the mixed water cavity 972, the liquid buffer cavity 91 and the normal temperature water cavity 971, the modification of the purified water dispenser 900 can be reduced, thereby reducing the processing cost.

[0442] In an embodiment, as shown in Figure 34 , Figure 31 and Figure 32 , the dispensing head 92, the mixed water cavity 972, the liquid buffer cavity 91, the backflow waterway 13 and the hot water container 42 are arranged in sequence from top to bottom, and the height difference is used to make the residual water in the dispensing head 92 flow through the mixed water cavity 972 and the liquid buffer cavity 91 in sequence, and then flow back to the hot water container 42 through the backflow waterway 13. The second mounting portion 927 of the dispensing head 92 is in communication with the water outlet end of the mixed water cavity 972, and a third sealing member 96 is arranged at the assembly position of the two. It should be understood that the main difference between this embodiment and the first embodiment is that the specific structure of the backwater structure 97 is different, and the assembly structure and positional relationship of the backwater structure 97 and the dispensing head 92 are the same as those of the first embodiment, which will not be described here.

[0443] In an embodiment, as shown in Figure 34 , Figure 31 and Figure 34 , the liquid buffer cavity 91 is provided with a first communication port 911, a second communication port 912 and a third communication port 913, the third communication port 913 is located above the first communication port 911 and the second communication port 912, the normal temperature water cavity 971 is provided with a fifth communication port 9711 and a sixth communication port 9712, the first communication port 911 is in communication with the hot water supply waterway 12, the second communication port 912 is in communication with the backflow waterway 13, the third communication port 913 and the sixth communication port 9712 are respectively in communication with the mixed water cavity 972, and the fifth communication port 9711 is in communication with the first waterway 11.

[0444] In an embodiment, as shown in Figure 34 and Figure 31As shown, the third check valve 173 is arranged at the water inlet end of the normal temperature water cavity 971.

[0445] Further, as shown, Figure 34 the third check valve 173 is arranged at the water inlet end of the normal temperature water cavity 971.

[0446] In an embodiment, before the water dispenser 900 dispenses water, as shown in Figure 34 and Figure 19 the return water path 13 is opened, the hot water container 42, the hot water supply water path 12, the liquid buffer cavity 91 and the return water path 13 are sequentially communicated and constitute a preheating circulating water path, and the residual water in the liquid buffer cavity 91 is returned to the hot water container 42 through the return water path 13; under the power provided by the second pump body 422 of the main machine 100, a preheating water circulation is formed in the preheating circulating water path, and in this solution, since the second pump body 422 provides power to the water flow, the relative positions of the dispensing head 92, the mixing water cavity 972 and the liquid buffer cavity 91 can not be limited to being sequentially arranged from top to bottom. The fourth check valve 174 is arranged at the communication position of the liquid buffer cavity 91 and the mixing water cavity 972, and the fourth check valve 174 is used to prevent the water in the mixing water cavity 972 from entering the liquid buffer cavity 91 when the user finishes taking water, so as to avoid the risk of water level rising in the tank of the hot water container 42 and causing overflow, and at the same time, the fourth check valve 174 is also used to prevent the hot water in the liquid buffer cavity 91 from flowing to the dispensing head 92 when the preheating water circulation is formed in the preheating circulating water path, so as to cause the dispensing head 42 to overflow in the preheating water circulation stage and affect the user experience. It should be understood that in this solution, when the water dispenser 900 stops dispensing water, the water in the dispensing head 92 and the mixing water cavity 972 is prevented from returning by the fourth check valve 174, and the water in the liquid buffer cavity 91 can return to the hot water container 42 of the main machine 100 through the return water path 13.

[0447] Further, when the preheating water circulation ends, the return water path 13 is blocked, so as to avoid the residual water in the liquid buffer cavity 91 from returning to the hot water container 42 through the return water path 13, which causes the water level in the hot water container 42 to abnormally rise or even overflow.

[0448] Further, as shown, Figure 31 the fourth check valve 174 is arranged at the water outlet end of the liquid buffer cavity 91.

[0449] Of course, the fourth check valve 174 can also not be arranged at the communication position of the liquid buffer cavity 91 and the mixing water cavity 972, as shown in Figure 31As shown, by setting the temperature controller 94 in the clean water distributor 900 and defining the lowest point D2 of the detection end of the temperature controller 94 to be above the mixed water cavity 972, when the temperature controller 94 obtains the temperature information, it indicates that the hot water in the liquid storage cavity 91 has entered the mixed water cavity 972 and there is a risk of overflow of the hot water from the mixed water cavity 972 or the overflow has already occurred, such as ​ As shown, the second pump body 422 is closed to stop the preheated water circulation, and the hot water in the mixed water cavity 972 flows back to the liquid storage cavity 91, and even further flows back to the hot water container 42 through the backflow water path 13, thereby preventing the preheated water circulation from having the risk of overflow. Further, in an embodiment, when the preheated water circulation is stopped and the temperature controller 94 does not obtain the temperature information, it indicates that the risk of overflow has been eliminated, and the second pump body 422 is opened to resume the preheated water circulation; in another embodiment, when the preheated water circulation is stopped for a preset time, it indicates that the risk of overflow has been eliminated, and the second pump body 422 is opened to resume the preheated water circulation.

[0450] The preset temperature value in the hot water container 42 is T1, the temperature of the normal temperature water provided by the first water path 11 is T2, and the target temperature of the water taken is T m . Among them, the preset temperature value T1 in the hot water container 42 is 82-88℃, preferably 85℃, which can avoid the occurrence of boiling water in the hot water container 42. In this embodiment, taking water includes the following four modes:

[0451] (1) When T m =T1, the user's target for taking water is the second grade hot water (such as 85℃ water), and the hot water in the hot water container 42 can be directly taken, and the water flow in the hot water container 42 flows into the distribution head 92 in turn through the hot water supply water path 12, the liquid storage cavity 91 and the mixed water cavity 972, and is distributed to the user through the distribution head 92.

[0452] (2) When T m =T2, the user's target for taking water is normal temperature water, and the normal temperature water in the first water path 11 can be directly taken, and the water flow in the first water path 11 flows into the distribution head 92 in turn through the normal temperature water cavity 971 and the mixed water cavity 972, and is distributed to the user through the distribution head 92.

[0453] (3) When T2 m <T1, the user's target for taking water is the first grade hot water (such as 45℃), and the water temperature is between the water temperature in the hot water container 42 and the normal temperature water, and the water flow in the hot water container 42 and the water flow in the first water path 11 are mixed in the mixed water cavity 972, and by controlling the mixing amount of the normal temperature water and the hot water, the water temperature required by the user (such as 45℃) is achieved, that is, the water flow with a temperature of T m flows into the distribution head 92 and is distributed to the user through the distribution head 92.

[0454] (4) when T m > T1, the user's water target is the third hot water (e.g. 95℃), 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 then flows into the dispensing head 92 through the liquid buffer cavity 91, and is dispensed to the user through the dispensing head 92.

[0455] In an embodiment, the fifth check valve 175 is arranged on the sixth flow channel 736 which connects the third filter core outlet 7252 and the second purified water outlet 7262 of the integrated waterway component 7, so as to prevent the purified water in the purified water container 41 from flowing to the first waterway 11.

[0456] In an embodiment, as shown in ​ , the third valve 143 is a two-way valve, and the third valve 143 is arranged on the second hot water pipe 122 of the hot water supply waterway 12.

[0457] It should be understood that, in this document, when comparing various height values, the corresponding height values are determined based on the same horizontal reference surface.

[0458] It should be understood that the above embodiments are exemplary and are not intended to include all possible embodiments included in the claims. Various modifications and changes can also be made on the basis of the above embodiments without departing from the scope of the present disclosure. Similarly, any combination of the technical features of the above embodiments can also be made to form another embodiment of the present application which can not be explicitly described. Therefore, the above embodiments only express several embodiments of the present application, and do not limit the protection scope of the present application.

Claims

1. A water purifier, comprising a main unit (100), characterized in that, The host (100) includes: The housing (5) has a first receiving area (521); The filter element assembly (3) is arranged laterally within the first receiving area (521) to purify the water flow; An integrated water circuit component (7) is provided with multiple flow channels and multiple water inlets inside, for sequentially connecting at least a portion of the water circuits within the host unit (100); the integrated water circuit component (7) is vertically arranged on one side of the filter element assembly (3); The integrated water circuit component (7) is provided with a first matching valve (79), and one end of the filter element assembly (3) is provided with a second matching valve; one end of the filter element assembly (3) is installed on the integrated water circuit component (7), and the first matching valve (79) and the second matching valve are plugged into each other.

2. The water purifier according to claim 1, characterized in that, The length of the filter element assembly (3) extends along a first direction (a), and the width of the integrated water channel component (7) extends along a second direction (b). The first direction (a) and the second direction (b) are perpendicular to each other and are both parallel to the horizontal plane.

3. The water purifier according to claim 1, characterized in that, The plurality of water inlets include: The original water inlet (721) is used to connect to the water source; The first purified water outlet (7261) is used to connect with the purified water distributor (900) provided by the water purifier for distributing water to the outside. The second purified water outlet (7262) is used to communicate with the purified water container (41) of the main unit (100); Wastewater outlet (727) is used to discharge wastewater formed by filtration and / or cleaning of the filter element assembly (3); the raw water inlet (721), the first purified water outlet (7261), the second purified water outlet (7262) and the wastewater outlet (727) are located at the upper part of the integrated water circuit component (7); The raw water inlet (721), wastewater outlet (727), second purified water outlet (7262) and first purified water outlet (7261) are arranged sequentially along the width direction of the integrated waterway component (7); The main unit (100) includes a first pump body (21) which provides power for the flow of water supplied by the water source through the filter assembly (3); The filter assembly (3) includes a first filter element (31), a second filter element (32) and a third filter element (33) arranged sequentially along the water flow direction. 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.

4. The water purifier according to claim 3, characterized in that, The plurality of water inlets also include 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), and a third filter element outlet (7252). The plurality of 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), 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 purified water outlet (7261), a sixth flow channel (736) connecting the third filter cartridge outlet (7252) and the second purified 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 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 water circuit 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 at the middle part of the integrated water circuit 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 sequentially along the width direction of the integrated water circuit 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 sequentially along the width direction of the integrated water circuit component (7); The first flow channel (731) is disposed near 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 disposed 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 sequentially along the width direction of the integrated water channel component (7); The fifth flow channel (735) extends vertically, with one end inserted downward into the U-shaped area formed by the third flow channel (733), and the other end extending upward. The fifth flow channel (735) is provided with a first valve interface (741), which 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 part of the fifth flow channel (735) and extends vertically; The integrated water circuit component (7) includes a second valve interface (742) for installing a fifth valve (145), which is used to control the opening and closing 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 sequentially 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 opening and closing of the eighth flow channel (738); The seventh flow channel (737) is provided with a fourth valve interface (744), which 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); The first flow channel (731) is provided with a fifth valve interface (745), which 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 circuit component (7) includes a check valve interface (746), which is used to install a second check valve (172), which is used to prevent wastewater from flowing back into the eighth flow channel (738); The integrated waterway component (7) includes: The first TDS sensor interface (751) is connected to the second flow channel (732); The NTC sensor interface (752) is connected to the fourth flow channel (734); The second TDS sensor interface (753) is connected to the fourth flow channel (734); The flow meter interface (754) is located downstream of the outlet (7252) of the third filter element; The cross-sectional area of ​​the flow channel is greater than or equal to 40 mm². 2 ; The integrated water channel component (7) includes a first plate (76) and a second plate (77), which are welded together to form the plurality of flow channels; The housing (5) includes: The outer casing (51) forms the outer contour structure of the main unit (100); The inner shell (52) is connected to the outer shell (51); the front side plate (525) of the inner shell (52) has three openings (5251). The integrated water circuit component (7) is provided with three first slots (71), and a first matching valve (79) is provided in the first slot (71); the first end of each filter element of the filter element assembly (3) is respectively snapped into the corresponding opening (5251) and the tail end is respectively snapped into the corresponding first slot (71), and the second matching valve of each filter element is inserted into the corresponding first matching valve (79).

5. The water purifier according to claim 1, characterized in that, The host (100) also includes: The first pump body (21) provides power for the water supplied by the water source to flow through the filter element assembly (3); A water purification container (41) for storing purified water treated by the filter assembly (3); Hot water container (42), which is used to provide hot water; The housing (5) further includes a second accommodating area (522), and the first accommodating area (521) and the second accommodating area (522) are distributed in sequence in the vertical direction of the housing (5); The length of the filter assembly (3) extends along a first direction (a), and the first pump body (21), the water purification container (41) and the hot water container (42) are sequentially arranged in the second accommodating area (522) along the first direction (a), and the water purification container (41) is configured to partially surround the first pump body (21). 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 generally 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 located entirely above the filter element assembly (3); The hot water container (42) includes a tank (421) and a second pump body (422) located below the tank (421), the second pump body (422) being connected to a first outlet (4211) at the bottom of the tank (421); The tank (421) is cylindrical and is located entirely above the filter element assembly (3), and 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 both parallel to the horizontal plane; The water purification container (41) is generally L-shaped so that it can partially surround the first pump body (21). The first sidewall (411) of the water purification container (41) facing the first pump body (21) is curved, and the first sidewall (411) partially surrounds the first pump body (21). The first pump body (21) is vertically disposed in the second accommodating area (522). The first pump body (21) includes a first motor accommodating cylinder (211) and a pump head (212). The first pump body (21) is cylindrical. The first side wall (411) matches the circumferential surface wall shape of the first pump body (21). The projection of the first motor housing (211) in the first direction (a) falls entirely on the water purification container (41); The total projected area of ​​the first motor housing (211) in the second direction (b) is S1, and the projected area of ​​the first motor housing (211) on the water purification container (41) in the second direction (b) is S2, wherein S2 is greater than half of S1. The water purification container (41) partially surrounds the filter assembly (3). The projection of the filter element assembly (3) in the second direction (b) partially falls on the water purification container (41); The volume of the hot water container (42) is 1.1-1.6 times the volume of the clean water container (41); The hot water container (42) has a volume of 1.4-1.6L, and the water purification container (41) has a volume of 1.8-2.2L; The host (100) also includes: Heating element (6) is used to heat purified water; The heating element (6) is vertically disposed in the second accommodating area (522) and is located on the side of the hot water container (42) away from the clean water container (41). The projection of the heating element (6) in the second direction (b) partially falls on the hot water container (42). The host (100) further includes: a second water channel (15), one end of which 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 inner shell (52) of the housing (5) is provided with a connected filter element seat (523) and a frame (524). The filter element seat (523) is provided with a first accommodating cavity, which constitutes the first accommodating area (521). The second accommodating area (522) is located inside the frame (524) and above the filter element seat (523). The front plate (525) of the inner shell (52) is located on the side of the hot water container (42) away from the water purification container (41); The inner housing (52) is provided with a second accommodating cavity (5221) and a third accommodating cavity (5222). A fourth accommodating cavity (5223) is formed between the outer wall of the second accommodating cavity (5221), the outer wall of the third accommodating cavity (5222), and the outer wall of the filter element seat (523). A fifth accommodating cavity (5224) is formed between the outer wall of the third accommodating cavity (5222) and the inner wall of the front side plate (525). The second accommodating cavity (5221), the third accommodating cavity (5222), the fourth accommodating cavity (5223), and the fifth accommodating cavity (5224) together constitute the second accommodating area (522); The first pump body (21) is located in the second accommodating cavity (5221), the hot water container (42) is located in the third accommodating cavity (5222), the purified water container (41) is located in the fourth accommodating cavity (5223), and the heating element (6) of the main unit (100) is located in the fifth accommodating cavity (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 water purification container (41). The filter assembly (3) includes a first filter (31), a second filter (32) and a third filter (33) arranged parallel to each other. The first filter (31) and the third filter (33) are distributed sequentially along the second direction (b), and the second filter (32) is located above the first filter (31) and the third filter (33). The lowest point (D1) of the second filter element (32) is located in the 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 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 both are smaller than the diameter of the second filter element (32); 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); The first accommodating area (521) includes: The first filter element receiving cavity (5211) is used to receive the first filter element (31). The second filter element receiving cavity (5212) is used to receive the second filter element (32); The third filter element receiving cavity (5213) is used to receive the third filter element (33). The walls of the first filter element receiving cavity (5211), the second filter element receiving cavity (5212), and the third filter element receiving cavity (5213) are connected end to end to form the first receiving area (521). The cavity wall of the first filter element receiving cavity (5211) matches the circumferential surface wall shape of the first filter element (31), and the first filter element receiving cavity (5211) surrounds more than half of the circumferential portion of the first filter element (31). The cavity wall of the second filter element receiving cavity (5212) matches the circumferential surface wall shape of the second filter element (32), and the second filter element receiving cavity (5212) surrounds more than half of the circumferential portion of the second filter element (32); The cavity wall of the third filter element receiving cavity (5213) matches the circumferential surface wall shape of the third filter element (33), and the third filter element receiving cavity (5213) surrounds more than half of the circumferential portion of the third filter element (33). The outer and inner walls of the filter element holder (523) have roughly the same outline; Each filter element of the filter element assembly (3) is equipped with a corresponding locking component (34) and unlocking component (35). The locking component (34) is used to lock the corresponding filter element to the inner shell (52) of the housing (5); the unlocking component (35) is used to unlock the locking component (34) to remove and install the corresponding filter element. The unlocking element (35) is movably connected to the corresponding filter element, and the locking assembly (34) includes: A locking element (341) is movably connected to the front side plate (525) of the inner housing (52), the locking element (341) having a locked position and an unlocked position; An elastic element (342) applies an elastic force to the locking element (341) so that the locking element (341) remains in the locked position; When the locking member (341) is in the locked position, the locking member (341) can restrict the corresponding filter element from being pulled out, thereby achieving locking; when the locking member (341) is in the unlocked position, the locking member (341) releases the restriction. The unlocking member (35) can move under external force to drive the locking member (341) to overcome the elastic force, so that the locking member (341) moves to the unlocking position; When the locking member (341) is in the locked position, the locking member (341) is at least partially located on the pull-out path of the corresponding filter element, thereby locking; when the locking member (341) is in the unlocked position, the locking member (341) leaves the pull-out path. The locking element (341) is a latch, and the locking assembly (34) also includes a latch groove (343) disposed on the corresponding filter element. When the locking member (341) is in the locked position, the locking member (341) is engaged with the latching groove (343); when the locking member (341) is in the unlocked position, the locking member (341) is disengaged from the latching groove (343). The locking member (341) is pivotally connected to the front side plate (525) via a pivot shaft (344), and the locking member (341) rotates about the pivot shaft (344) to switch between the locked position and the unlocked position; Each filter element is provided with a filter element end cap (36), and the filter element end cap (36) is provided with a first groove (361); the unlocking member (35) includes a handle part (351) and a first mounting part (352), and the first mounting part (352) is rotatably connected to the first groove (361); The first mounting part (352) is provided with a fastening surface (3521), and the fastening surface (3521) and the groove wall of the first groove (361) form the fastening groove (343). The locking member (341) includes a locking protrusion (3411) that engages with the fastening surface (3521). The first mounting part (352) is provided with a pushing surface (3522). When the unlocking member (35) rotates under external force, after the fastening surface (3521) disengages from the locking protrusion (3411), the pushing surface (3522) pushes the locking protrusion (3411) so that the locking member (341) leaves the locking position. Two locking elements (341) are provided on both radial sides of each filter element. 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).

6. The water purifier according to claim 1, characterized in that, The host (100) includes a hot water container (42), which comprises: The tank (421) has 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 horizontally disposed below the tank body (421) and includes a second outlet (4221), a pump chamber (4222), and a second inlet (4223) connected in sequence; the second inlet (4223) is connected to the first outlet (4211), and the second outlet (4221) is located at the top of the pump chamber (4222); The second pump body (422) includes a water outlet pipe (4224), which connects with the pump chamber (4222) to form the second water outlet (4221); the water outlet pipe (4224) slopes upward from the second water outlet (4221); The angle between the water outlet pipe (4224) and the horizontal plane is 5°-20°; The second pump body (422) includes a front end cover (4225) and a second motor housing (4226), and the second outlet (4221) and the second inlet (4223) are disposed on the front end cover (4225); The outer periphery of the front cover (4225) is provided with a plurality of first protrusions (42251), and the outer periphery of the second motor housing (4226) is provided with a plurality of second protrusions (42261). The first protrusions (42251) and the second protrusions (42261) are provided in a one-to-one correspondence and are connected by fasteners. The second water outlet (4221) is located below the first protrusion (42251) at its highest point, and the water outlet pipe (4224) does not protrude from the first protrusion (42251). The second pump body (422) is provided with baffles (4227), which are located at the second water inlet (4223); the baffles (4227) achieve water vapor separation by dispersing the hot water flow into the second water inlet (4223); The hot water container (42) includes a pump mounting bracket (423), and the second pump body (422) is mounted on the bottom of the tank (421) via the pump mounting bracket (423); The pump mounting bracket (423) includes a support frame (4231) and a transfer pipe (4232). The second pump body (422) is mounted on the support frame (4231). The two ends of the transfer pipe (4232) are respectively connected to the first outlet (4211) and the second inlet (4223). The second pump body (422) includes an inlet pipe (4228), which is inserted 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 inserted into the first outlet (4211), and a second sealing element (425) is provided at the assembly point of the two. The support frame (4231) is an open structure that partially surrounds the second pump body (422). The second pump body (422) is fitted with a shock-absorbing component (426) around its outer periphery; The second pump body (422) is located at the bottom of the tank (421) and is disposed on one side close to the tank (421) such that the projection of the second pump body (422) in the second direction (b) partially falls on the filter element assembly (3); The length of the filter element assembly (3) extends along a first direction (a), and the first direction (a) and the second direction (b) are perpendicular to each other and both parallel to the horizontal plane; The tank (421) is provided with a heat insulation structure (4214), which surrounds the water storage cavity (4213) circumferentially. The tank body (421) has a double-layer vacuum structure, and the double-layer vacuum structure constitutes the heat insulation structure (4214). The tank (421) is equipped with a liquid level detection mechanism (4215) to obtain the liquid level information of the water storage chamber (4213); The liquid level detection mechanism (4215) includes: The upper float (42151), located inside the water storage cavity (4213), is able to float up and down between the first position and the second position; The lower float (42152), located inside the water storage cavity (4213) and below the upper float (42151), is capable of floating up and down between the third and fourth positions; The liquid level sensor obtains the liquid level information of the water storage chamber (4213) by acquiring the position information of the upper float (42151) and the lower float (42152) in the vertical direction; The tank (421) is provided with a mounting column (4216) which is parallel to the axis of the tank (421); the upper float (42151) and the lower float (42152) are respectively movably mounted on the mounting column (4216). The mounting post (4216) has four limiting members (4217) on its outer periphery, which respectively limit the first position, the second position, the third position and the fourth position; 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 inside the tank (421) to obtain water temperature information in the water storage chamber (4213); The water purifier also includes a water distributor (900), which is located outside the main unit (100) and used to distribute water to the outside; the main unit (100) includes a water circuit assembly (1) and a hot water container (42), the water circuit assembly (1) including: Hot water supply path (12) is connected at both ends to the water purification distributor (900) and the hot water container (42) respectively. Hot water in the hot water container (42) flows into the water purification distributor (900) through the hot water supply path (12) and is distributed by the water purification distributor (900). The return water path (13) is connected at both ends to the water purification distributor (900) and the hot water container (42), respectively; When the return water path (13) is opened, the water in the water purifier (900) flows back to the hot water container (42) through the return water path (13); The water circuit assembly (1) includes a first valve (141) disposed on the return water circuit (13), the first valve (141) being used to block or open the return water circuit (13). The second pump body (422) is located on the hot water supply line (12) and is used to pump water out of the hot water container (42).

7. The water purifier according to claim 6, characterized in that, The water dispenser (900) includes a liquid buffer chamber (91) and a dispensing head (92) connected to each other, wherein the liquid buffer chamber (91) is used to temporarily store liquid; The hot water supply channel (12) is connected to the liquid buffer chamber (91), and the hot water from the hot water supply channel (12) flows into the distributor (92) via the liquid buffer chamber (91).

8. The water purifier according to claim 7, characterized in that, The return water path (13) and the liquid buffer chamber (91) are connected; Before the water is distributed by the water purifier (900), the hot water container (42), the hot water supply channel (12), the liquid buffer chamber (91) and the return channel (13) are connected in sequence to form a preheating circulation channel; under the power provided by the second pump body (422), a preheating hot water circulation is formed in the preheating circulation channel; The liquid buffer chamber (91), the return water path (13), and the hot water container (42) are arranged sequentially from top to bottom; The dispensing head (92) includes a trigger element and a water dispensing switch (921); When the triggering element is activated and the water inlet switch (921) is in the off state, the second pump body (422) operates to start the preheated water circulation; The dispensing head (92) includes a temperature selection operation element (922), which constitutes the trigger element; The preheating water circulation is configured such that when the preheating water circulation is performed for 3-5 seconds, the temperature of the hot water in the hot water supply circuit (12) reaches a preset temperature value. The temperature selection operation element (922) and the water dispensing switch (921) are touch buttons, mechanical buttons or knobs; The upper surface of the dispensing head (92) is a touch screen, and the touch screen includes indicator lights; When the touch screen is in its initial state, the indicator light is half-lit; when the touch screen is touched, the indicator light is fully lit. The liquid buffer chamber (91) includes a first connecting port (911), a second connecting port (912), and a third connecting port (913); the first connecting port (911) and the second connecting port (912) are located below the third connecting port (913); The hot water supply path (12) is connected to the first connection port (911), and the return water path (13) is connected to the second connection port (912); one end of the distribution head (92) is provided with a distribution port (923), and the other end of it is connected to the third connection port (913). The water purifier includes a heating element (6) which is disposed on the hot water supply channel (12); the second pump body (422) is located on the water channel between the hot water container (42) and the heating element (6); The waterway component (1) includes: The second water channel (15) has its outlet end connected to the hot water container (42); The second valve (142) has its first outlet end connected to the first hot water pipe (121) of the hot water supply circuit (12), its second outlet end connected to the second water circuit (15), and its inlet end connected to the heating element (6); the first hot water pipe (121) is connected to the liquid buffer chamber (91); When the water temperature in the hot water container (42) does not reach the preset value and the water purifier is not turned on to take water, the first water outlet 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) is heated by the heating element (6) and then circulates into the hot water container (42) through the second water path (15) to form a heating circulation water path so that the water temperature in the hot water container (42) reaches the preset value. The host (100) includes a first water path (11) and a first pump body (21). The inlet of the first water path (11) is used to connect to a water source. The first pump body (21) and the filter element assembly (3) are disposed on the first water path (11). The outlet of the first water path (11) is connected to the water purifier (900) to supply purified room temperature water. The outlet of the first water channel (11) is connected to 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) sequentially through the hot water supply channel (12) and the liquid buffer chamber (91). When T m =T2, the water in the first water channel (11) flows into the distribution head (92) through 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) mix in the liquid buffer chamber (91) to obtain a temperature of T. m The water then flows into the distribution head (92); When T m When T1 is greater than 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 room temperature water provided by the first water circuit (11) is T2, and the target temperature for water intake is T. m ; The T1 is 82-88℃; A first check valve (171) is provided at the connection between the outlet end of the first water passage (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 passage (11). The host (100) includes a water purification container (41), the water inlet of the water purification container (41) is connected to the first water passage (11), and its outlet is connected to the hot water supply passage (12) through the third water passage (16). The third water passage (16) is provided with a third pump body (22). When the liquid level in the water purification container (41) is lower than the preset water purification level value and the water purifier is not turned on to take water, the first pump body (21) runs so that the water in the first water path (11) flows into the water purification container (41) after being purified by the filter element assembly (3) to replenish the purified water. When the liquid level in the hot water container (42) is lower than the preset hot water level value and the water purifier is not turned on to take water, the third pump (22) runs so that the water in the purified water container (41) flows into the hot water supply channel (12) and is heated by the heating element (6) before flowing into the hot water container (42) to replenish the hot water. The third water passage (16) is connected to the hot water supply passage (12) via the 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 outlet of the first exhaust pipe (427) is connected to the second exhaust pipe (93) provided with the water purification distributor (900); The water purification container (41) is provided with a third exhaust pipe (412), and the outlet of the third exhaust pipe (412) is connected to the first exhaust pipe (427); The hot water supply circuit (12) is made of Teflon tubing; The filter assembly (3) includes a first filter element (31), a second filter element (32) and a third filter element (33) arranged sequentially along the water flow direction. 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 water circuit assembly (1) includes a first wastewater circuit (181), the inlet of which is connected to the water circuit between the second filter element (32) and the third filter element (33). The first wastewater circuit (181) is used to discharge wastewater discharged from the second filter element (32). The water circuit assembly (1) includes a second wastewater circuit (182), the inlet of which is connected to the downstream of the third filter element (33). The second wastewater circuit (182) is used to discharge the wastewater generated when cleaning the filter element assembly (3).

9. The water purifier according to claim 8, characterized in that, The water purifier also includes a water distributor (900), which is located outside the main unit (100) and used to distribute water to the outside, and includes: The distribution port (923) is used to discharge water; The water outlet channel (924) is connected at both ends to the distribution port (923) and the water supply port of the water circuit assembly (1) of the host (100), and includes a first bottom wall (9241) and a second bottom wall (9242). The first water-blocking structure (925) is located on the bottom wall of the water outlet channel (924); The second bottom wall (9242), the first water-blocking structure (925), and the first bottom wall (9241) are distributed sequentially 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); The second bottom wall (9242), the first water-blocking 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) protrudes upward to form the first water-blocking structure (925). The water distributor (900) includes an air-blocking structure (926) and a second water-blocking structure (92311). The air-blocking structure (926) is located on the top wall of the water outlet channel (924) and between the distribution port (923) and the first water-blocking structure (925). The second water-blocking structure (92311) is located at the distribution port (923). The height h1 of the top wall of the first water-blocking structure (925) is higher than the height h2 of the bottom wall of the air-blocking structure (926), and the h1 is configured to enable the first water-blocking structure (925) to partially block the backflow of water in the water outlet channel (924) so ​​as to form a pre-stored water at a preset liquid level h3 between the first water-blocking structure (925) and the second water-blocking structure (92311); Where 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 between the two sides of the air-blocking structure (926); The outer wall of the distribution port (923) constitutes the second water-blocking structure (92311). The top wall of the water outlet channel (924) protrudes downward to form the air-blocking structure (926). The water outlet channel (924) includes 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 chamber (91) is connected to the vertical channel (9244). The first water-blocking structure (925) is located in the transverse channel (9243); the water purification distributor (900) includes a thermostat (94), the 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-blocking structure (925); During the preheating process, when the thermostat (94) obtains temperature information, the second pump body (422) is turned off to stop the preheating process, and the water in the liquid buffer chamber (91) flows back to the hot water container (42) through the return water path (13). When the preheating water circulation stops and the thermostat (94) does not obtain temperature information, the second pump (422) is turned on to resume the preheating water circulation; When the preheated water circulation stops for a preset period of time, the second pump (422) is turned on to resume the preheated water circulation; The water dispenser (900) includes an ultraviolet sterilization element (95), which is located in the water outlet channel (924) and near the dispensing port (923); The water dispenser (900) includes a dispensing head (92), and the water outlet channel (924) and the dispensing port (923) are located inside the dispensing head (92); The dispensing head (92) is generally L-shaped, and a second mounting part (927) is provided at one end of the dispensing head (923) away from the dispensing port (923); the second mounting part (927) is inserted into the fourth communication port (914) of the liquid buffer chamber (91), and a third sealing member (96) is provided at the assembly point of the two. The water dispenser (900) includes a return water structure (97) with a hollow interior to form the liquid buffer chamber (91). The distribution port (923) includes: The first distribution pipe (9231) has a height h4 that is higher than the height of the first water-blocking structure (925) and has a first water distribution inlet (92312). The second distribution pipe (9232) has a height h5 that is higher than h4; A plug (9233) is inserted into a portion of the inlet of the second distribution pipe (9232), and the assembly of the two forms a steam venting gap (9234). The plug (9233) divides the inlet of the second distribution pipe (9232) into a second water distribution inlet (92321) and a steam venting gap (9234). The water level in the outlet channel (924) is h6. When h4 < h6 ≤ h5, the water in the outlet channel (924) enters the distribution port (923) through the first water distribution inlet (92312), and the water vapor in the 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) to distribute clean water to the outside through the outlet channel (9235); The second exhaust pipe (93) is located inside the distribution head (92), and the opening of the exhaust port (931) of the second exhaust pipe (93) faces downward; The water dispensing switch (921) is located above the touch screen.

10. The water purifier according to claim 8, characterized in that, When the opening conditions of the return water passage (13) are met, the return water passage (13) opens, and the water in the liquid buffer chamber (91) flows back to the hot water container (42) through the return water passage (13); The opening conditions include: the preheating water circulation begins; When the closing condition of the return water path (13) is met, the return water path (13) is blocked; the closing condition includes: the preheating water circulation ends; When the water dispenser (900) dispenses water, the return water path (13) is blocked; When the water purifier (900) stops distributing hot water, the return water path (13) opens, and the water in the liquid buffer chamber (91) flows back to the hot water container (42) through the return water path (13); The water purifier distributor (900) further includes a mixing chamber (972) and a room temperature water chamber (971), wherein the room temperature water chamber (971) and the liquid buffer chamber (91) are not connected to each other; the third connecting port (913), the mixing chamber (972) and the distributing head (92) are connected in sequence; the hot water in the hot water supply circuit (12) enters the mixing chamber (972) through the liquid buffer chamber (91) and is distributed to the outside through the distributing head (92); The ambient temperature water chamber (971) includes a fifth connecting port (9711) and a sixth connecting port (9712). The sixth connecting port (9712) is connected to the mixing chamber (972), and the fifth connecting port (9711) is connected to the outlet of the first water path (11). The purified ambient temperature water in the first water path (11) can enter the mixing chamber (972) through the ambient temperature water chamber (971).

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