Water purifying device

Abstract

The invention belongs to the technical field of water purification devices, and discloses a water purification device which comprises a machine body, a filtering assembly, a first water purification tank, a second water purification tank, a third water purification tank and a water outlet structure, the first water purification tank comprises a water inlet, a first water passing opening and a water outlet, the water inlet is higher than the first water passing opening, and the water outlet is lower than the first water passing opening; the second water purifying tank is detachably arranged on the machine body and comprises a second water passing opening; the third water purification tank is used for detecting the water levels of the second water purification tank and the third water purification tank, the third water purification tank comprises a third water passing opening, the third water passing opening and the second water passing opening are the same in height, the capacity of the third water purification tank is smaller than that of the second water purification tank, and the first water passing opening can be sequentially communicated with the second water passing opening and the third water passing opening. The second water purification tank and the third water purification tank are communicated and have the same water level; and the water outlet structure is connected with the water outlet. The water purifying device can solve the problem of inaccurate water level detection.

Description

Technical Field

[0001] The invention relates to the technical field of drinking water treatment, and in particular to a water purification device. Background Art

[0002] As people's living standards improve, more and more people pursue a high-quality life, the application of water purifiers is increasing, and the functional requirements for water purifiers are also increasing.

[0003] The water purifier is provided with a clean water tank for storing clean water, which can be disassembled for easy cleaning. In order to obtain the water level in the clean water tank so as to replenish the clean water in time, a water level detection component needs to be provided in the clean water tank. Not only does it need to electrically connect the water level detection component in the clean water tank with the external device of the clean water tank, but also a sealing structure is added, which makes the structure inside the clean water tank complicated. Moreover, the clean water tank is frequently disassembled and assembled, which easily causes damage to the water level detection component.

[0004] Some water purifiers are equipped with two water tanks, one of which is detachable, and a water level detection component is installed in the other water tank. The two water tanks are connected to make the water levels in the two water tanks the same. Although this method can simplify the structure of the detachable water tank and reduce the failure rate of the water level detection component, it is difficult for the water levels in the two water tanks to quickly reach equilibrium, resulting in inaccurate water level detection. Summary of the invention

[0005] The purpose of the present invention is to provide a water purification device, which can solve the problem that the water levels in two existing water purification tanks are difficult to quickly reach balance, resulting in inaccurate water level detection.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A water purification device, comprising:

[0008] Body;

[0009] A first clean water tank, the first clean water tank comprising a water inlet, a first water outlet and a water outlet, the water inlet being higher than the first water outlet, and the water outlet being lower than the first water outlet;

[0010] A second clean water tank is detachably mounted on the machine body, and the second clean water tank comprises a second water outlet;

[0011] a third clean water tank, used to detect the water levels of the second clean water tank and the third clean water tank, the third clean water tank comprising a third water outlet, the third water outlet having the same height as the second water outlet, the capacity of the third clean water tank being smaller than the capacity of the second clean water tank, the first water outlet being able to communicate with the second water outlet and the third water outlet in sequence, so that the second clean water tank and the third clean water tank are connected and have the same water level;

[0012] A water outlet structure, connected to the water outlet, for providing liquid to the user;

[0013] The water in the first clean water tank can flow from the first water outlet to the second water outlet and the third water outlet in sequence; the water in the second clean water tank and the third clean water tank can flow to the first water outlet simultaneously through the second water outlet and the third water outlet respectively.

[0014] As an optional solution of the above-mentioned water purification device, the heights of the second water purification tank and the third water purification tank are both higher than the first water outlet, the second water outlet is arranged on the bottom surface of the second water purification tank, and the third water outlet is arranged on the bottom surface of the third water purification tank.

[0015] As an optional solution of the above-mentioned water purification device, the first water purification tank includes:

[0016] A first box body, wherein the water inlet, the first water outlet and the water outlet are all arranged on the first box body;

[0017] The first lamp assembly is arranged on the first box, the light emitting surface of the first lamp assembly faces the inside of the first box, and the first lamp assembly is used to illuminate the water.

[0018] As an optional solution of the above-mentioned water purification device, the first lamp assembly includes a lighting lamp and / or a germicidal lamp.

[0019] As an optional solution of the above-mentioned water purification device, at least a part of the first box body is arranged outside the body and is made of light-transmitting material.

[0020] As an optional solution of the above-mentioned water purification device, the first water purification tank also includes a hydrogen-rich component, which is arranged at the bottom of the first tank body and connected to the first tank body. The first water purification tank is used to ionize the water in the first tank body to form hydrogen-rich water.

[0021] As an optional solution of the above-mentioned water purification device, the hydrogen-rich component is detachably connected to the first box body, and the hydrogen-rich component is located outside the body.

[0022] As an optional solution of the above water purification device, the hydrogen-rich component includes:

[0023] A hydrogen-rich shell, wherein a reaction chamber is formed on the top of the hydrogen-rich shell, and the reaction chamber is communicated with the first box;

[0024] The electrode is arranged in the reaction chamber, and the electrode is used to ionize the water in the reaction chamber.

[0025] As an optional solution of the above water purification device, the hydrogen-rich shell is detachably connected to the first box body.

[0026] As an optional solution of the above water purification device, one of the hydrogen-rich shell and the first box body is provided with a mounting flange, and the other is provided with a mounting groove, and the mounting flange can extend into the mounting groove and be engaged with the mounting groove.

[0027] As an optional solution of the above-mentioned water purification device, a groove is provided on the side wall of the installation groove, and the groove includes a screw-in section and a clamping section connected to each other, the screw-in section extends along the axial direction of the installation groove and passes through the bottom end surface of the first box body, and the clamping section extends along the circumferential direction of the installation groove;

[0028] The mounting flange is provided with a protrusion, and the protrusion can be screwed into the clamping section from the screw-in section and clamped with the clamping section.

[0029] As an optional solution of the above-mentioned water purification device, the hydrogen-rich component also includes an outer cover, which is arranged outside the hydrogen-rich shell, and the outer cover is adsorbed and fixed to the first box.

[0030] As an optional solution of the above-mentioned water purification device, a first magnetic component is arranged in the outer cover, and a second magnetic component is arranged on the first water purification tank, and the first magnetic component can be adsorbed and fixed to the second magnetic component.

[0031] As an optional solution of the above-mentioned water purification device, the first magnetic attraction components are arranged on two opposite sides of the outer cover, and the magnetism of the first magnetic attraction components on the two sides is opposite.

[0032] As an optional solution of the above-mentioned water purification device, the hydrogen-enriching component further includes a male terminal and a female terminal, the female terminal is arranged at the bottom of the first box, and the female terminal is used to connect a power supply;

[0033] The male terminal is arranged in the hydrogen-rich shell, one end of the male terminal is connected to the electrode, and the other end of the male terminal can extend out of the hydrogen-rich shell to connect with the female terminal.

[0034] As an optional solution of the above-mentioned water purification device, an installation cavity is formed in the hydrogen-rich shell, the electrode includes a lead-out end, the lead-out end extends out of the reaction chamber and is located in the installation cavity, and the male terminal is arranged in the installation cavity and is conductively connected to the lead-out end.

[0035] As an optional solution of the above water purification device, the male terminal includes:

[0036] A main body is slidably disposed in the installation cavity along a vertical direction;

[0037] A sliding part connected to the main body, the hydrogen-rich shell is provided with a sliding hole, the sliding part passes through the sliding hole and can slide along the sliding hole;

[0038] A coupling part is connected to the main body, the coupling part can be received in the installation cavity or extended out of the installation cavity, and the coupling part is used to dock with the female terminal.

[0039] As an optional solution of the above-mentioned water purification device, a slide groove is arranged in the installation cavity, the sliding hole is communicated with the slide groove, and the main body is slidably arranged in the slide groove.

[0040] As an optional solution of the above water purification device, a guide groove is provided on the outer wall of the hydrogen-rich shell, the sliding hole is provided in the guide groove, and the sliding part is slidably provided in the guide groove.

[0041] As an optional solution of the above-mentioned water purification device, the hydrogen-rich housing is provided with pressing ribs in the reaction chamber, and the pressing ribs are used to press the electrode into the reaction chamber.

[0042] As an optional solution of the above-mentioned water purification device, the hydrogen-rich shell includes a hydrogen-rich shell and an electrode shell, the top of the hydrogen-rich shell is provided with an opening, the electrode shell cover is provided at the opening, the electrode shell forms the reaction chamber, and the electrode is provided in the reaction chamber.

[0043] As an optional solution for the above-mentioned water purification device, the electrode shell includes an upper cover and a lower cover that are detachably connected, the upper cover is provided with a center hole and a mounting flange circumferentially arranged around the center hole, and the electrode is clamped and fixed between the upper cover and the lower cover and is opposite to the center hole.

[0044] As an optional solution of the above-mentioned water purification device, the electrode shell also includes a third sealing member, the third sealing member is sleeved on the circumferential edge of the electrode, and the third sealing member is respectively abutted against the upper cover and the lower cover.

[0045] As an optional solution of the above water purification device, the first housing includes:

[0046] A cup body, wherein a through hole is arranged on the bottom surface of the cup body, and a positioning sleeve is arranged on the bottom surface of the cup body around the circumference of the through hole;

[0047] A cup seat connected to the bottom of the cup body, the cup seat is annular and arranged around the through hole, and the mounting flange is located in the positioning sleeve;

[0048] A fourth sealing member, the fourth sealing member includes a top sealing portion, a side sealing portion and a bottom sealing portion which are connected in sequence, the top sealing portion can be pressed against the bottom surface of the cup body by the mounting flange, the side sealing portion can be clamped between the mounting flange and the positioning sleeve, and the bottom sealing portion can be clamped between the positioning sleeve and the cup seat.

[0049] As an optional solution of the above water purification device, the body includes:

[0050] a housing, wherein the first clean water tank is disposed at the front side of the housing;

[0051] A box seat is arranged in the casing, and the second clean water tank and the third clean water tank are both arranged on the box seat.

[0052] As an optional solution of the above-mentioned water purification device, the front side wall of the casing is concave to form a receiving groove, and the first purified water tank is arranged in the receiving groove.

[0053] As an optional solution of the above-mentioned water purification device, an operation panel is arranged on the top of the front side wall of the casing, and the operation panel is located above the first water purification tank.

[0054] As an optional solution of the above-mentioned water purification device, the water purification device also includes a connecting valve, the connecting valve includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the first water outlet, the second valve port is connected to the second water outlet, and the third valve port is connected to the third water outlet.

[0055] As an optional solution of the above-mentioned water purification device, the connecting valve includes a valve body and a valve core assembly, and the first valve port, the second valve port and the third valve port are all arranged on the valve body;

[0056] The valve core assembly is arranged at the second valve port, and the valve core assembly can open the second valve port when the second clean water tank is installed in the tank seat so that the second valve port is connected to the second clean water tank, and can close the second valve port when the second clean water tank is removed from the tank seat.

[0057] As an optional solution of the above water purification device, the valve core assembly includes:

[0058] A valve body and valve core are slidably disposed in the second valve port, and one end of the valve body and valve core extending into the second valve port is a first blocking end;

[0059] A valve body elastic member, wherein the valve body elastic member elastically connects the valve body valve core and the valve body, and the elastic force of the valve body elastic member can drive the valve body valve core to move out of the valve body so that the first blocking end blocks the second valve port.

[0060] As an optional solution of the above-mentioned water purification device, the valve core assembly also includes a first sealing member, and the first sealing member is sleeved on the first blocking end.

[0061] As an optional solution of the above-mentioned water purification device, the second water purification tank includes:

[0062] A second box body, the second box body is detachably connected to the box base, and the second water outlet is arranged on the bottom surface of the second box body;

[0063] A water tank valve core is slidably disposed in the second water outlet, and one end of the water tank valve core facing the interior of the second box body is a second blocking end;

[0064] A water tank elastic member, wherein the water tank elastic member elastically connects the water tank valve core and the second tank body, and the elastic force of the water tank elastic member can drive the water tank valve core to slide outside the second tank body so that the second blocking end blocks the second water outlet.

[0065] As an optional solution of the above-mentioned water purification device, the second blocking end jacket is provided with a second sealing member.

[0066] As an optional solution to the above-mentioned water purification device, a limiting sleeve is protruded from the bottom surface of the second box body around the second water outlet, the water tank valve core is located in the limiting sleeve, and a limiting groove is provided on the connecting valve, and the limiting sleeve can be inserted into the limiting groove and abut against the bottom surface of the limiting groove.

[0067] As an optional scheme for the above-mentioned water purification device, an avoidance hole is provided at the bottom of the box seat, and the second water outlet can be connected with the second valve port through the avoidance hole. The box seat is provided with an annular flange protruding into the box seat around the avoidance hole, and a supporting portion is protruding from the bottom of the second box body, and the supporting portion abuts against the inner bottom surface of the box seat, and the annular flange abuts against the bottom surface of the second box body, and the height of the limiting sleeve is less than the height of the support portion protruding from the second box body.

[0068] As an optional solution of the above-mentioned water purification device, the second water purification tank also includes a tank cover, and a lock is rotatably provided on one of the second tank body and the tank cover, and a locking portion that is snap-fitted with the lock is provided on the other.

[0069] As an optional solution of the above-mentioned water purification device, a handle is rotatably provided on the box cover, and the handle can be perpendicular to the box cover or overlapped on the top surface of the box cover.

[0070] As an optional solution of the above-mentioned water purification device, the top surface of the box cover is provided with an avoidance groove, and the handle is rotatably arranged in the avoidance groove. When the handle is overlapped on the top surface of the box cover, the handle is completely located in the avoidance groove.

[0071] As an optional solution of the above-mentioned water purification device, the water purification device further includes a sterilization mechanism, and the sterilization mechanism can sterilize the purified water inside the second water purification tank when the second water purification tank is installed on the tank seat.

[0072] As an optional solution of the above-mentioned water purification device, the sterilization mechanism includes:

[0073] A germicidal lamp assembly, wherein a mounting hole is provided at the bottom of the clean water tank, at least the light-emitting end of the germicidal lamp assembly is sealed and disposed in the mounting hole, and a conductive contact pin is provided on the bottom surface of the germicidal lamp assembly;

[0074] A lamp holder assembly is arranged on the box seat and is used to connect a power source. A conductive female socket is arranged on the lamp holder assembly and the conductive female socket can contact the conductive contact pin to supply power to the germicidal lamp assembly.

[0075] As an optional solution of the above-mentioned water purification device, the germicidal lamp assembly includes:

[0076] A circuit protection shell, wherein the top surface of the circuit protection shell is provided with a lamp hole, and the bottom surface of the circuit protection shell is provided with a contact pin hole;

[0077] A circuit board is arranged in the circuit protection shell, and the conductive contact pin is arranged on the circuit board and passes through the contact pin hole;

[0078] A germicidal lamp is arranged on the circuit board, and the germicidal lamp passes through the lamp hole and the mounting hole in sequence.

[0079] As an optional solution of the above water purification device, the water purification device further includes:

[0080] A detection trigger, disposed on the bottom surface of the germicidal lamp assembly;

[0081] The detection sensing component is arranged on the lamp holder assembly, and the detection triggering component can trigger the detection sensing component when the clean water tank is installed on the tank seat.

[0082] As an optional solution of the above-mentioned water purification device, the sterilization mechanism includes:

[0083] A lampshade, wherein a mounting hole is provided on the bottom surface of the clean water tank, and the lampshade is sealed and arranged in the mounting hole;

[0084] The germicidal lamp assembly is fixedly arranged on the box seat and connected to a power source. When the clean water tank is installed on the box seat, the light-emitting end of the germicidal lamp assembly extends into the lampshade.

[0085] As an optional solution of the above water purification device, the lampshade includes:

[0086] A cover body, arranged in the clean water tank and partially located in the mounting hole;

[0087] A lampshade sealing member, arranged between the mounting hole and the cover body;

[0088] The lampshade cover is sleeved on the cover body and is detachably connected to the clean water tank. The lampshade cover is used to press the cover body toward the clean water tank.

[0089] As an optional solution of the above-mentioned water purification device, the third water purification tank includes:

[0090] A detection box, wherein a vent is provided at the top of the detection box;

[0091] A water level float is disposed in the detection box to rise and fall as the water level in the detection box changes;

[0092] A water level sensing component is arranged on the detection box, and the water level sensing component can be triggered by the water level float.

[0093] As an optional solution of the above-mentioned water purification device, an exhaust port is provided on the top of the first water purification tank, and the exhaust port is connected to the detection box.

[0094] As an optional solution of the above-mentioned water purification device, the exhaust port is higher than a preset maximum water level of the third water purification tank.

[0095] As an optional solution for the above-mentioned water purification device, the first water purification tank includes a first tank body and a joint, the joint is connected to the first tank body, a flow channel connected to the interior of the first tank body is arranged in the joint, the water inlet and the exhaust port are both arranged on the joint and connected to the flow channel, the exhaust port is higher than the water inlet, and the first water outlet and the water outlet are arranged on the first tank body.

[0096] As an optional solution of the above-mentioned water purification device, the flow channel extends along the height direction of the first box body, and a vertically extending partition is provided at the top of the flow channel to separate the top of the flow channel into two branches. The bottom end height of the partition is lower than the height of the water inlet, and a vent hole is provided at the top of the partition.

[0097] As an optional solution of the above-mentioned water purification device, the third water purification tank also includes an anti-overflow float and an anti-overflow sensor. The anti-overflow float is slidably arranged in the detection box along the vertical direction. The anti-overflow float can trigger the anti-overflow sensor when it slides to the overflow critical liquid level of the detection box.

[0098] As an optional solution of the above-mentioned water purification device, the water purification device also includes a heater, the water outlet structure includes a normal temperature water inlet and a hot water inlet, the water outlet is respectively connected to the normal temperature water inlet and the inlet of the heater, and the outlet of the heater is connected to the hot water inlet.

[0099] As an optional solution of the above-mentioned water purification device, the water purification device also includes a thermos cup, the outlet of the heater can be connected to the thermos cup, and the outlet of the thermos cup can be connected to the inlet of the heater.

[0100] As an optional solution of the above-mentioned water purification device, the water purification device further includes: a filter component, which is arranged on the body, the filter component is used to filter water, and the water inlet is connected to the filter component.

[0101] Beneficial effects of the present invention:

[0102] In the water purification device provided by the present invention, the second water purification tank can be detachably installed on the machine body, the second water purification tank and the third water purification tank are connected to form a communicating vessel, the volume of the third water purification tank is smaller than the volume of the second water purification tank, and the water in the first water purification tank flows into the second water purification tank and the third water purification tank in turn, that is, the water in the first water purification tank first enters the second water purification tank.

[0103] By adding a third clean water tank to form a communicating vessel with the second clean water tank, the principle of a communicating vessel is utilized and the water level in the second clean water tank can be obtained by detecting the water level in the third clean water tank. There is no need to set a water level detection component in the second clean water tank, and thus there is no need to add a sealing structure and a conductive structure in the second clean water tank, which is conducive to simplifying the internal structure of the second clean water tank.

[0104] The pure water in the first clean water tank first enters the second clean water tank, and the volume of the second clean water tank is greater than that of the third clean water tank, so that more water enters the second clean water tank first, ensuring that the water levels in the second clean water tank and the third clean water tank quickly reach balance, which is conducive to improving the accuracy of water level detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0105] Figure 1 It is a structural schematic diagram of the water purification device provided by the present invention;

[0106] Figure 2 This is a partial structural diagram of the water purification device provided by the present invention. Figure 1 ;

[0107] Figure 3 yes Figure 2 The main view of

[0108] Figure 4 This is a partial structural diagram of the water purification device provided by the present invention. Figure 2 ;

[0109] Figure 5 It is a structural schematic diagram of the third water purification tank provided by the present invention;

[0110] Figure 6 is a cross-sectional view of a third water purification tank provided by the present invention;

[0111] Figure 7 It is a structural schematic diagram of a first water purification tank provided by the present invention;

[0112] Figure 8 is a cross-sectional view of a first clean water tank provided by the present invention;

[0113] Fig. 9 It is a structural schematic diagram of a first box provided by the present invention;

[0114] Fig.10 is a schematic structural diagram of the hydrogen-rich component provided by the present invention;

[0115] Fig.11 It is a partial structural cross-sectional view of the first box body and the hydrogen-rich component provided by the present invention;

[0116] Fig.12 It is a schematic diagram of the structure of the hydrogen-rich component provided by the present invention when the outer cover is not installed;

[0117] Fig.13 The structure of the electrode shell and the electrode provided by the present invention is schematically shown. Figure 1 ;

[0118] Fig.14 The structure of the electrode shell and the electrode provided by the present invention is schematically shown. Figure 2 ;

[0119] Fig.15 It is a structural schematic diagram of the electrode and the electrode seal provided by the present invention;

[0120] Fig.16 is a schematic structural diagram of an electrode seal provided by the present invention;

[0121] Fig.17 is a top view of the first clean water tank provided by the present invention when the outer cover is not installed;

[0122] Fig.18 It is a partial structural schematic diagram of the first box and the hydrogen-rich component provided by the present invention;

[0123] Fig.19It is a structural schematic diagram of the joint provided by the present invention;

[0124] Fig. 20 is a cross-sectional view of a joint provided by the present invention;

[0125] Fig.21 is a cross-sectional view of a sterilization mechanism provided by the present invention;

[0126] Fig. 22 is a cross-sectional view of another sterilization mechanism provided by the present invention;

[0127] Fig.23 This is a partial structural diagram of the water purification device provided by the present invention. Figure 3 ;

[0128] Fig.24 It is a structural schematic diagram of the first water inlet tank, the second clean water tank, the tank seat and the connecting valve provided by the present invention;

[0129] Fig.25 It is a cross-sectional view of the second clean water tank, the tank seat and the connecting valve provided by the present invention;

[0130] Fig.26 It is a structural schematic diagram of the second water purification tank and the tank base provided by the present invention when they are not installed.

[0131] In the figure:

[0132] 10. housing; 20. first water purification tank; 21. first housing; 211. cup body; 2111. first water outlet; 2112. water outlet; 2113. positioning sleeve; 212. cup holder; 2121. mounting groove; 2122. groove; 21221. screw-in section; 21222. snap-on section; 213. adsorption member; 214. fourth sealing member; 22. joint; 221. exhaust port; 222. water inlet; 223. partition; 2231. vent; 23. hydrogen-rich component; 231. hydrogen-rich shell; 2311. guide 2312, sliding hole; 2313, slide groove; 232, electrode shell; 2320, reaction chamber; 2321, upper cover; 23211, annular plate; 23212, mounting flange; 23213, card convex; 23214, pressing rib; 2322, lower cover; 2323, electrode seal; 23231, sealing bottom plate; 23232, sealing top plate; 23233, sealing side plate; 233, electrode; 2331, first lead-out terminal; 2332, second lead-out terminal; 234, outer cover; 235, male terminal; 236 351, main body; 2352, sliding part; 2353, coupling part; 236, female terminal; 30, water outlet structure; 40, second clean water tank; 41, second box body; 411, limit sleeve; 412, support part; 42, box cover; 43, water tank valve core assembly; 431, water tank valve core; 432, water tank elastic part; 433, second sealing part; 50, third clean water tank; 51, detection box; 511, float groove; 521, high water level sensor; 522, low water level sensor; 53, overflow prevention sensor; 54, water level float ; 55. Anti-overflow float; 60. Thermos cup; 70. Box seat; 71. Annular flange; 80. Connecting valve; 81. Valve body; 811. Valve seat; 812. Tee pipe; 82. Valve body valve core; 83. First sealing member; 84. Valve body elastic member; 91. Second lamp assembly; 911. Circuit protection shell; 912. Circuit board; 913. Conductive contact pin; 914. Germicidal lamp; 92. Lamp holder assembly; 921. Lamp holder; 922. Conductive female socket; 93. Lampshade; 931. Shade body; 932. Lampshade cover; 933. Lampshade seal. DETAILED DESCRIPTION

[0133] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0134] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0135] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0136] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0137] like Figure 1-Figure 3 As shown, this embodiment provides a water purification device, including a body, a raw water tank, a booster pump, a filter assembly, a water outlet structure 30, a first clean water tank 20, a second clean water tank 40 and a third clean water tank. The booster pump, the second clean water tank 40 and the third clean water tank 50 are arranged in the body, the booster pump is connected to the raw water tank and the filter assembly, and provides power for the raw water in the raw water tank, and the filter assembly is used to filter water. The first clean water tank 20 includes a water inlet 222, a first water outlet 2111 and a water outlet 2112, the water inlet 222 is used to connect to the filter assembly, the water outlet 2112 is connected to the water outlet structure 30, and the first water outlet 2111 is used to supply water to the second clean water tank 40 and the third clean water tank 50 in sequence. The raw water in the raw water tank is filtered through the filter assembly driven by the booster pump, and the filtered pure water flows to the first clean water tank 20 through the water inlet 222, and flows to the water outlet structure 30 through the water outlet 2112 of the first clean water tank 20 for use by users.

[0138] The second clean water tank 40 can be detachably mounted on the machine body. The second clean water tank 40 and the third clean water tank 50 are connected to form a communicating vessel. The volume of the third clean water tank 50 is smaller than that of the second clean water tank 40. The water in the first clean water tank 20 flows into the second clean water tank 40 and the third clean water tank 50 in turn, that is, the water in the first clean water tank 20 first enters the second clean water tank 40.

[0139] In the present embodiment, a third clean water tank 50 is added, and the principle of communicating vessels is utilized to obtain the water level in the second clean water tank 40 by detecting the water level in the third clean water tank 50. There is no need to set a water level detection component in the second clean water tank 40, and thus there is no need to add a sealing structure and a conductive structure in the second clean water tank 40, which is beneficial to simplifying the internal structure of the second clean water tank 40.

[0140] The pure water in the first clean water tank 20 first enters the second clean water tank 40, and the volume of the second clean water tank 40 is greater than that of the third clean water tank 50, so that more water enters the second clean water tank 40 first, ensuring that the water levels in the second clean water tank 40 and the third clean water tank 50 quickly reach equilibrium, which is beneficial to improving the accuracy of water level detection.

[0141] Specifically, the second clean water tank 40 includes a second water port, and the third clean water tank 50 includes a third water port. The second water port and the third water port can be connected, and the second water port and the third water port are at the same height, so that the second clean water tank 40 and the third clean water tank 50 form a communicating vessel, so that the water levels in the second clean water tank 40 and the third clean water tank 50 are detected through the third clean water tank 50. The first water port 2111 of the first clean water tank 20 can sequentially connect the second water port and the third water port, so that the first clean water tank 20 sequentially supplies clean water to the second clean water tank 40 and the third clean water tank 50. Among them, the water in the first clean water tank 20 can first pass through the second water port, and then pass through the third water port, so as to first supply water to the second clean water tank 40, and then supply pure water to the third clean water tank 50. When the water level in the first clean water tank 20 drops, the water in the second clean water tank 40 and the third clean water tank 50 can also flow to the first water outlet 2111 to supply water to the first clean water tank 20 .

[0142] In order to allow the water in the second clean water tank 40 and the third clean water tank 50 to enter the first clean water tank 20, the heights of the second clean water tank 40 and the third clean water tank 50 are higher than the first water inlet 2111, the second water inlet is arranged on the bottom surface of the second clean water tank 40, and the third water inlet is arranged on the bottom surface of the third clean water tank 50. This arrangement can drain the water in the second clean water tank 40 and the third clean water tank 50 and avoid residual water.

[0143] It should be noted that, in order to form a communicating vessel between the second clean water tank 40 and the third clean water tank 50 to ensure that the water levels of the two are the same, the tops of the second clean water tank 40 and the third clean water tank 50 are both connected to the atmosphere. The second clean water tank 40 can be connected to the atmosphere by its own assembly gap, and the third clean water tank 50 is provided with a vent, and the third clean water tank 50 is connected to the atmosphere through the vent hole.

[0144] In this embodiment, Figure 4 As shown, the body includes a casing 10 and a box seat 70 arranged in the casing 10, the first clean water tank 20 and the raw water tank are arranged outside the casing 10, the second clean water tank 40 is arranged in the box seat 70, the third clean water tank 50 is arranged in the casing 10 and is located on one side of the box seat 70, and the filter assembly is arranged in the casing 10 and is located below the box seat 70.

[0145] To detect the water level in the second clean water tank 40 and the third clean water tank 50, in this embodiment, Figure 5 and Figure 6 As shown, the third clean water tank 50 includes a detection box 51, a water level float 54 and a water level sensing assembly. The third water inlet is arranged at the bottom end of the detection box 51, and a vertically extending float groove 511 is arranged in the detection box 51. The water level float 54 is slidably arranged in the float groove 511, so that the water level float 54 can slide along the float groove 511 as the water level in the detection box 51 rises and falls. The water level sensing assembly is arranged on the detection box 51, and the water level sensing assembly can detect the position of the water level float 54, and is triggered when the water level float 54 is located at a preset low water level and a preset high water level of the detection box 51.

[0146] When the water level float 54 is at the preset low water level, the water level float 54 triggers the water level sensor, and the water level sensor component sends information to the host of the water purification device. After receiving the signal, the host determines that the water level in the second clean water tank 40 is at a low water level and needs to be supplemented with pure water. At this time, the host controls the booster pump to start, and the raw water passes through the filter component to prepare pure water. The pure water enters the second clean water tank 40 after passing through the first clean water tank 20 to supplement the second clean water tank 40. When replenishing pure water, the water level in the detection box 51 increases, and the water level float 54 slides upward until it reaches the preset high water level, triggering the water level sensor component. The water level sensor component sends information to the host, and the host determines that the water level in the second clean water tank 40 is at a high water level and needs to stop water intake. The host controls the booster pump to shut down and stop preparing raw water to prevent pure water from overflowing from the second clean water tank 40 and the third clean water tank 50.

[0147] In order to better detect the position of the water level float 54 in the detection box 51, the water level sensing component includes a low water level sensing component 522 and a high water level sensing component 521, which are arranged vertically, and the low water level sensing component 522 corresponds to the preset low water level height in the detection box 51, and the high water level sensing component 521 corresponds to the preset high water level height in the detection box 51. Among them, the low water level sensing component 522 and the high water level sensing component 521 can both be proximity sensors, and correspondingly, the water level float 54 is a magnet, and the proximity sensor can sense the magnet within the sensing range.

[0148] Furthermore, the third clean water tank 50 further includes an anti-overflow float 55 and an anti-overflow sensor 53. The anti-overflow float 55 is slidably disposed in the detection box 51 in the vertical direction. The anti-overflow float 55 can trigger the anti-overflow sensor 53 when sliding to the overflow critical liquid level of the detection box 51. The anti-overflow sensor 53 can send a signal to the host after being triggered. The host determines that there is an overflow risk in the second clean water tank 40, stops supplying pure water to the second clean water tank 40, or sends a warning signal to prompt the user to perform maintenance in time.

[0149] In this embodiment, the first clean water tank 20 is disposed at the front side of the housing 10, so that the first clean water tank 20 is exposed. Specifically, the front outer wall of the housing 10 is recessed into the housing 10 to form a receiving groove, and the first clean water tank 20 is disposed in the receiving groove, so that at least part of the first clean water tank 20 is exposed from the housing 10. The first clean water tank 20 is disposed at the front side of the housing 10 and is visible from the outside of the water purification device, which can improve the user experience.

[0150] The body also includes an operation panel, which is arranged on the top of the front side wall of the casing 10. The operation panel is located above the first water purification tank 20 and is used to interact with the user. The operation panel is communicatively connected to the host of the water purification device to realize the transmission of interactive commands.

[0151] like Figure 7 As shown, the first clean water tank 20 includes a first box body 21 and a first lamp assembly, and the water inlet 222, the first water outlet 2111 and the water outlet 2112 are all arranged on the first box body 21; the first lamp assembly is arranged on the first box body 21, and the light-emitting surface of the first lamp assembly faces the first box body 21, and is used to illuminate the water in the first box body 21 to improve the user experience.

[0152] In this embodiment, the first lamp assembly includes at least one of an illumination lamp and a germicidal lamp. The illumination lamp can illuminate the water in the first box 21. When the first box 21 is light-transmissive, the user can observe the water in the first box 21 from the outside, giving the user an intuitive use experience. The germicidal lamp can disinfect and sterilize the water in the first box 21 to improve water hygiene.

[0153] Optionally, the germicidal lamp can be an ultraviolet lamp.

[0154] In this embodiment, at least a portion of the first box body 21 is made of light-transmitting material so that the light emitted by the first lamp assembly can pass through the first box body 21, and the water in the first box body 21 and the bubbles generated during ionization are visible from the outside of the first box body 21, so as to improve the user experience and provide a visual effect for the user.

[0155] The first clean water tank 20 can also produce hydrogen-rich water. Specifically, the first clean water tank 20 also includes a hydrogen-rich component 23, which is arranged at the bottom of the first tank 21 and communicated with the first tank 21. The hydrogen-rich component 23 is used to ionize the water in the first tank 21 to form hydrogen-rich water.

[0156] The top surface of the hydrogen-rich component 23 has a reaction chamber 2320, which is connected to the interior of the first box body 21. Pure water entering the first box body 21 will enter the reaction chamber 2320 under the action of gravity, and then generate hydrogen ions through ionization to prepare hydrogen-rich water.

[0157] In this embodiment, the hydrogen-rich component 23 is disposed outside the housing 10, and the hydrogen-rich component 23 is detachably connected to the first box body 21 to facilitate disassembly and maintenance of the hydrogen-rich component 23. The bottom surface of the hydrogen-rich component 23 is spaced from the housing 10 to form a certain distance. By setting this distance, space can be provided for disassembly and assembly of the hydrogen-rich component 23, which is convenient for operation.

[0158] The hydrogen-rich component 23 includes a hydrogen-rich shell and an electrode 233. A reaction chamber 2320 is formed on the top of the hydrogen-rich shell, and the reaction chamber 2320 is connected to the first box body 21. The electrode 233 is arranged in the reaction chamber 2320. After the electrode 233 is energized, it can ionize the water in the reaction chamber 2320 to form hydrogen-rich water.

[0159] In order to facilitate maintenance of the hydrogen-rich component 23, the hydrogen-rich component 23 is detachably connected to the first box body 21. Figure 8 , Fig. 9 and Fig.10 As shown, the hydrogen-rich component 23 includes a mounting flange 23212, which is arranged around the reaction chamber 2320. The bottom of the first box body 21 is provided with a mounting groove 2121 that is connected to the inside of the first box body 21. The mounting flange 23212 can be inserted into the mounting groove 2121 and fixed with the mounting groove 2121 to fix the first box body 21 and the hydrogen-rich component 23. The hydrogen-rich component 23 and the first box body 21 are fixed by snap connection, which is convenient for disassembly and assembly, and has a simple structure.

[0160] Specifically, a protrusion 23213 is provided on the mounting flange 23212, and a groove 2122 is provided on the side wall of the mounting groove 2121. The groove 2122 includes a screw-in section 21221 and a clamping section 21222 that are connected to each other. The screw-in section 21221 extends axially along the mounting groove 2121 and passes through the bottom end surface of the first box body 21, and the clamping section 21222 extends circumferentially along the mounting groove 2121; the protrusion 23213 can enter the screw-in section 21221, and can enter the clamping section 21222 from the screw-in section 21221 as the hydrogen-rich component 23 rotates, and fixes the hydrogen-rich component 23 to the first box body 21 by abutting against the side wall of the clamping section 21222.

[0161] In some embodiments, the groove 2122 may be disposed on the outer wall of the mounting flange 23212 , and correspondingly, the protrusion 23213 may be disposed on the inner wall of the mounting groove 2121 , which can also realize the snap connection between the hydrogen-rich component 23 and the first box body 21 .

[0162] In order to improve the fixing effect of the first box body 21 and the hydrogen-rich component 23, two grooves 2122 are provided, and each groove 2122 is correspondingly provided with a protrusion 23213. The arrangement direction of the screw-in section 21221 and the clamping section 21222 in the two grooves 2122 is the same, so that the two protrusions 23213 can be synchronously clamped into the corresponding grooves 2122.

[0163] In other embodiments, the number of the grooves 2122 can be three, four or more, and the specific number can be selected according to actual needs.

[0164] To prevent water leakage at the connection between the hydrogen-rich component 23 and the first box body 21, a fourth seal 214 is provided between the mounting flange 23212 and the inner wall of the mounting groove 2121. The fourth seal 214 is clamped and deformed by the mounting flange 23212 and the mounting groove 2121 to block the safety gap between the two.

[0165] The first box body 21 includes a cup body 211 and a cup seat 212. The bottom surface of the cup body 211 is provided with a through hole. The cup seat 212 is arranged on the bottom surface of the cup body 211, and the cup seat 212 is arranged circumferentially around the through hole. The cup seal can achieve sealing among the cup body 211, the cup seat 212 and the hydrogen-rich component 23.

[0166] Specifically, a positioning sleeve 2113 is further provided around the through hole on the bottom surface of the cup body 211, and the positioning sleeve 2113 forms a part of the side wall of the mounting groove. The fourth sealing member 214 includes a top sealing portion, a side sealing portion and a bottom sealing portion connected in sequence, the top sealing portion can be pressed against the bottom surface of the cup body 211 by the mounting flange 23212, the side sealing portion can be clamped between the mounting flange 23212 and the positioning sleeve 2113, and the bottom sealing portion can be clamped between the positioning sleeve 2113 and the cup holder 212. The sealing of the assembly position of the mounting flange 23212 and the cup body 211 is achieved through the cooperation between the top sealing part, the mounting flange 23212 and the bottom surface of the cup body 211; the sealing between the cup seat 212 and the cup body 211 is achieved through the cooperation between the bottom sealing part, the positioning sleeve 2113 and the cup seat 212; the sealing between the cup body 211 and the hydrogen-rich component 23, and between the cup body 211 and the cup seat 212 can be strengthened through the cooperation between the side sealing part, the inner wall of the mounting groove and the mounting flange 23212, and the sealing effect is good.

[0167] In other embodiments, the fourth sealing member 214 may be embedded in a positioning groove on the inner wall of the mounting groove or the outer wall of the mounting flange 23212, and sealing may also be achieved.

[0168] In order to be able to carry out ionization, the electrode 233 needs to be energized. In order to more conveniently control the start and stop of the electrode 233 and ensure safe use, the electrode can be energized after the hydrogen-rich component 23 in the first clean water tank 20 is assembled with the first box body 21, and the power can be automatically cut off after the hydrogen-rich component 23 is separated from the first box body 21, so as to improve safety in use.

[0169] like Fig.11 and Fig.12 As shown, a male terminal 235 is provided in the hydrogen-rich component 23, and a female terminal 236 is provided in the first box 21. The male terminal 235 is connected to the electrode 233, and the female terminal 236 is used to connect the power supply. When the hydrogen-rich component 23 is installed at the bottom of the first box 21, the female terminal 236 and the male terminal 235 are matched and contacted to achieve electrical connection. When the hydrogen-rich component 23 is removed from the first box 21, the female terminal 236 and the male terminal 235 are separated and automatically disconnected.

[0170] Specifically, the hydrogen-rich shell includes a hydrogen-rich shell 231 and an electrode shell 232, a reaction chamber 2320 is formed in the electrode shell 232, the electrode shell 232 is arranged at the top of the hydrogen-rich shell 231, the electrode shell 232 and the hydrogen-rich shell 231 form an installation cavity, one end of the male terminal 235 is arranged in the installation cavity and connected with the electrode 233, and the other end can extend out of the installation cavity to cooperate with the female terminal 236 in the first box body 21 to achieve a conductive connection.

[0171] Since the hydrogen-rich component 23 is fixed to the first box body 21 by the engagement of the protrusion 23213 and the groove 2122, and the protrusion 23213 is assembled with the groove 2122 by rotation, in order to ensure that the male terminal 235 can be connected with the female terminal 236 after being assembled in place, Fig.10 As shown, a sliding hole 2312 extending along the height direction of the first box body 21 is provided in the hydrogen-rich shell 231, and the male terminal 235 includes a main body 2351, a coupling part 2353 and a sliding part 2352. The main body 2351 is provided in the hydrogen-rich shell 231 and can slide in the vertical direction. The sliding part 2352 is slidably provided in the sliding hole 2312, and part of the sliding part 2352 extends out of the hydrogen-rich shell 231 from the sliding hole 2312; the coupling part 2353 can be plugged with the female terminal 236 to realize electrical connection and fixation.

[0172] Before assembling the first box 21 and the hydrogen-rich component 23, the male terminal 235 is first slid downward by pushing the sliding part 2352 so that the coupling part 2353 can be retracted into the hydrogen-rich shell 231. After the hydrogen-rich component 23 and the first box 21 are rotated and assembled, the male terminal 235 is slid upward by pushing the sliding part 2352 so that the male terminal 235 extends out of the hydrogen-rich shell 231, so that the male terminal 235 can cooperate with the female terminal 236. When disassembling the hydrogen-rich component 23, the male terminal 235 is slid downward by pushing the sliding part 2352 so that the male terminal 235 is retracted into the hydrogen-rich shell 231, and then the hydrogen-rich component 23 and the first box 21 can be disassembled by rotation.

[0173] In order to improve the stability of the male terminal 235 in the hydrogen-rich shell 231, a slide groove 2313 is further provided in the hydrogen-rich shell 231, and the main body 2351 is slidably provided in the slide groove 2313, and the sliding hole 2312 is connected to the slide groove 2313. By providing the slide groove 2313, it is possible to provide a guide for the sliding of the main body 2351 in the hydrogen-rich shell 231, improve the position accuracy of the coupling part 2353, and ensure that the coupling part 2353 can be connected with the female terminal 236.

[0174] In order to improve the sliding stability of the male terminal 235, a guide groove 2311 is provided on the outer wall of the hydrogen-rich shell 231, the sliding hole 2312 is provided in the guide groove 2311, and the sliding part 2352 is slidably provided in the guide groove 2311. The guide groove 2311 can provide a guide for the sliding of the sliding part 2352, so that the sliding of the male terminal 235 is more stable.

[0175] In this embodiment, the male terminal 235 and the electrode 233 may be connected by a conductive member, which may be a wire. Fig.13 and Fig.14As shown, the electrode 2313 is arranged in the electrode shell 232, and the electrode 233 includes a first lead-out end 2331 and a second lead-out end 2332. The first lead-out end 2331 and the second lead-out end 2332 extend out of the electrode shell 232 and are located in the installation cavity. The first lead-out end 2331 and the second lead-out end 2332 are both connected to wires, and the wires are connected to the male terminal 235.

[0176] The electrode shell 232 includes an upper cover 2321 and a lower cover 2322, which are detachably connected, and a reaction chamber 2320 is formed between the upper cover 2321 and the lower cover 2322; the upper cover 2321 is provided with a central hole and a mounting flange 23212 arranged circumferentially around the central hole, and the first lead-out terminal 2331 and the second lead-out terminal 2332 both pass through the lower cover 2322 to be connected with the male terminal 235 in the mounting chamber. The electrode 233 is clamped and fixed between the upper cover 2321 and the lower cover 2322 and is directly opposite to the central hole. The upper cover 2321 and the lower cover 2322 are detachably connected to facilitate maintenance and replacement of the electrode 233, further increase the number of reusable parts in the hydrogen-rich component 23, and reduce maintenance costs.

[0177] Among them, the upper cover 2321 includes an annular plate 23211 and a mounting flange 23212 arranged around the center hole of the annular plate 23211, and the mounting flange 23212 is protruded toward the direction of the first box body 21; the lower cover 2322 is detachably arranged below the upper cover 2321, and the mounting flange 23212, the annular plate 23211 and the lower cover 2322 form a reaction chamber 2320, and the top end of the mounting flange 23212 forms an opening of the reaction chamber 2320 to communicate with the through hole of the first box body 21.

[0178] To prevent water leakage from the electrode shell 232, Fig.15 and Fig.16 As shown, the electrode shell 232 also includes an electrode seal 2323, which is sleeved on the circumferential edge of the electrode 233. The electrode seal 2323 abuts against the upper cover 2321 and the lower cover 2322 respectively, thereby sealing the assembly gap of the electrode shell 232 to prevent the electrode shell 232 from leaking.

[0179] Specifically, Fig.16As shown, the electrode seal 2323 includes a sealing top plate 23232, a sealing bottom plate 23231 and a sealing side plate 23233. The sealing top plate 23232 and the sealing bottom plate 23231 are both annular plates 23211. The sealing side plate 23233 is arranged around the circumference of the sealing top plate 23232 and respectively connects the sealing top plate 23232 and the sealing bottom plate 23231. The sealing side plate 23233, the sealing top plate 23232 and the sealing bottom plate 23231 form a limiting groove. The circumferential edge of the electrode 233 is inserted into the limiting groove. The sealing top plate 23232 abuts against the upper cover 2321, and the sealing bottom plate 23231 abuts against the lower cover 2322 to achieve sealing.

[0180] In this embodiment, the top end of the sealing side plate 23233 extends out of the sealing top plate 23232, the bottom end of the mounting flange 23212 abuts against the sealing top plate 23232, and the top end of the sealing side plate 23233 is located on the inner side of the mounting flange 23212 and abuts against the mounting flange 23212, which can further improve the sealing effect.

[0181] In this embodiment, the electrode 233 includes a positive electrode sheet and a negative electrode sheet. To prevent the positive electrode sheet or the negative electrode sheet from warping and affecting the electrolysis effect, Fig.17 As shown, the upper cover 2321 further includes a pressing rib 23214, which is disposed in the reaction chamber 2320 and is used to abut against the front of the electrode 233 to press the electrode 233 toward the lower cover 2322, thereby preventing the middle of the electrode 233 from tilting. Specifically, the pressing rib 23214 is disposed in the center hole.

[0182] Three pressing ribs 23214 are provided, one end of the three pressing ribs 23214 is connected to one point, and the other end is connected to the inner wall of the reaction chamber 2320 to improve the anti-warping effect of the electrode 233 .

[0183] The hydrogen-rich component 23 further includes an outer cover 234 , which can be covered outside the hydrogen-rich shell 231 to improve the appearance of the hydrogen-rich component 23 .

[0184] To facilitate fixing the outer cover 234, as Fig.18 As shown, the outer cover 234 and the first box body 21 are fixed by adsorption, so as to improve the fixing effect of the hydrogen-rich component 23 and the first box body 21. Specifically, the adsorption member 213 in the first box body 21 is called the first magnetic member, which is arranged in the cup holder 212, and the adsorption member 213 of the hydrogen-rich component 23 is called the second magnetic member, which can be arranged in the outer cover 234. The adsorption members 213 in both the outer cover 234 and the first box body 21 can be magnets, or the adsorption member 213 of one of the hydrogen-rich component 23 and the first box body 21 is a magnet, and the adsorption member 213 of the other is an iron block.

[0185] Optionally, first magnetic members are provided on opposite sides of the outer cover, and the magnetism of the first magnetic members on the two sides is opposite, so that the outer cover can only be installed at a certain angle, which can achieve an anti-mistake effect.

[0186] like Figure 1 and Fig.19 As shown, the first clean water tank 20 further includes a joint 22, which is connected to the first box body 21, and a flow channel communicating with the interior of the first box body 21 is provided in the joint 22. The joint 22 is provided with a water inlet 222 and an exhaust port 221 communicating with the flow channel, the water inlet 222 is used to introduce water into the first box body 21, and the exhaust port 221 is used to exhaust the gas in the first box body 21, so as to ensure that water can smoothly enter the first box body 21.

[0187] Optionally, the exhaust port 221 is higher than the water inlet 222 to facilitate smooth exhaust.

[0188] To further ensure the smoothness of exhaust of the first clean water tank 20, Fig.19 and Fig. 20 As shown, the flow channel in the joint 22 extends in the height direction of the cup body 211, and a vertically extending partition 223 is provided at the top of the flow channel to separate the top of the flow channel into two branches, the bottom end of the partition 223 is located below the water inlet 222, and a vent hole 2231 is provided at the top of the partition 223. This arrangement enables the water and gas in the flow channel to flow separately to avoid mutual interference, so that the pure water can smoothly enter the first clean water tank 20, and the gas can be smoothly discharged from the first clean water tank 20.

[0189] In this embodiment, the water inlet 222 and the exhaust port 221 are located on the same side of the partition 223 . In other embodiments, the water inlet 222 and the exhaust port 221 may also be located on both sides of the partition 223 .

[0190] The water purification device also includes a water outlet structure 30 and a heater. The water outlet structure 30 includes a normal temperature water inlet, a hot water inlet and a water supply outlet, and can provide normal temperature water and hot water to the user. The first water outlet 2111 on the first water purification tank 20 is connected to the second water purification tank 40, and the water outlet 2112 is connected to the normal temperature water inlet and the inlet of the heater. The outlet of the heater is connected to the hot water inlet. The heater is used to heat water, thereby supplying hot water to the user. When the second water purification tank 40 is installed in the tank seat, the first water purification tank 20 supplies water to the water outlet structure 30, and the second water purification tank 40 and the third water purification tank 50 provide water to the first water purification tank 20 to ensure the water supply. When the second water purification tank 40 is removed from the casing 10, water is supplied to the water outlet structure 30 and the heater through the first water purification tank 20 to ensure that the water purification device can continue to be used.

[0191] When hot water needs to be provided to users, pure water at room temperature is generally passed into the heater to prepare hot water of the temperature required by the user. When the hot water required by the user is at a lower temperature, it can be provided to the user more quickly by heating it with the heater. However, when the hot water required by the user is at a higher temperature, such as above 85°C, it takes a long time to heat the room temperature water with the heater, which affects the user experience.

[0192] To solve the above problems, Figure 2 As shown, the water purifier further includes a thermos cup 60, the outlet of the heater is connected to the thermos cup 60, and the outlet of the thermos cup 60 is connected to the inlet of the heater. By providing the thermos cup 60, a portion of warm water can be pre-stored, that is, after the normal temperature water is heated to a certain temperature (for example, 40°C-60°C) by the heater, the warm water is stored in the thermos cup 60. When the user needs high-temperature hot water, the warm water in the thermos cup 60 is passed into the heater for further heating, so as to reduce the waiting time of the user.

[0193] The water purification device also includes a sterilization mechanism, which can sterilize the purified water inside the second water purification tank 40 when the second water purification tank 40 is installed on the tank seat, so as to improve the user experience.

[0194] In this embodiment, Fig.21 As shown, the sterilization mechanism includes a second lamp assembly 91 and a lamp holder assembly 92. A mounting hole is provided at the bottom of the second clean water tank. At least the light-emitting end of the second lamp assembly 91 is sealed and provided in the mounting hole. A conductive contact pin 913 is provided on the bottom surface of the second lamp assembly 91. The lamp holder assembly 92 is provided on the box seat 70 for connecting a power source. The lamp holder assembly 92 includes a lamp holder 921 and a conductive female socket 922 provided on the lamp holder 921. The conductive female socket 922 is connected to a power source. The conductive female socket 922 can contact the conductive contact pin 913 to supply power to the second lamp assembly 91. By contacting the lamp holder assembly 92 and the second lamp assembly 91 through the conductive contact pin 913 and the conductive female socket 922 to supply power to the second lamp assembly 91, it is not necessary to provide a conductive structure in the second clean water tank, which is conducive to simplifying the sealing structure of the second clean water tank 40 and improving the safety of use.

[0195] The second lamp assembly 91 includes a circuit protection shell 911, a circuit board 912, and a germicidal lamp 914. The top surface of the circuit protection shell 911 is provided with a lamp hole, and the bottom surface of the circuit protection shell 911 is provided with a contact pin hole; the circuit board 912 is arranged in the circuit protection shell 911, the germicidal lamp 914 and the conductive contact pin 913 are both arranged on the circuit board 912 and electrically connected to the circuit board 912, the germicidal lamp 914 extends into the mounting hole through the lamp hole, and the conductive contact pin 913 passes through the contact pin hole to extend out of the circuit protection shell 911.

[0196] In order to prevent the water in the second clean water tank from contacting the second lamp assembly 91 through the installation hole, a sealing ring is provided between the bottom surface of the second clean water tank and the circuit protection shell 911 to seal the assembly gap.

[0197] In order to make the water purification device more intelligent, the water purification device further includes a detection trigger and a detection sensor. The detection trigger is arranged on the bottom surface of the circuit protection shell 911, and the detection sensor is arranged on the lamp holder 921. When the second water purification tank is installed in the box holder 70, the detection trigger can trigger the detection sensor, thereby judging whether the second water purification tank is installed in the box holder 70. When the second water purification tank is not installed in the box holder 70, the host of the water purification device sends a prompt message to remind the user to install the second water purification tank.

[0198] Optionally, the detection triggering member may be a detection pin, the detection sensing member may be a detection socket, and the detection socket may be connected in series in the detection circuit. When the detection pin contacts the detection socket, the detection circuit is connected; when the detection pin separates from the detection socket, the detection circuit is disconnected. Whether the second clean water tank is installed in the tank seat 70 can be detected by the on-off state of the detection circuit.

[0199] In some embodiments, the detection sensing element can be a proximity switch or a micro switch. When the second clean water tank is installed in the tank seat 70, the detection trigger element is within the detection range of the proximity switch or presses the reed of the micro switch to change the detection signal of the proximity switch or the micro switch, thereby determining whether the second clean water tank is installed in the tank seat 70.

[0200] In some embodiments, Fig. 22 As shown, the sterilization mechanism includes a lampshade 93 and a second lamp assembly 91. The bottom surface of the second clean water tank is provided with a mounting hole, and the lampshade 93 is sealed in the mounting hole; the second lamp assembly 91 is fixedly arranged on the box seat 70 and connected to a power source. When the second clean water tank is installed on the box seat 70, the light-emitting end of the second lamp assembly 91 extends into the lampshade 93.

[0201] Optionally, the lampshade includes a cover body 931, a lampshade cover 932, and a lampshade seal 933. The cover body 931 is disposed in the second clean water tank and partially in the mounting hole. The lampshade seal 933 is disposed between the mounting hole and the cover body 931 to seal the gap between the two. The lampshade cover 932 is sleeved outside the cover body 931 and is detachably connected to the second clean water tank. The lampshade cover 931 is used to press the cover body 931 toward the second clean water tank and squeeze the lampshade seal 933 to improve the sealing effect. The lampshade cover 932 is connected to the mounting hole by threads.

[0202] like Fig.23 and Fig.24As shown, the water purification device also includes a box seat 70 and a connecting valve 80, the box seat 70 is arranged in the casing 10, the first clean water tank 20 and the raw water tank are arranged outside the casing 10, the second clean water tank 40 is detachably arranged in the box seat 70, the water level detection box 50 is arranged in the casing 10 and located on one side of the box seat 70, and the filter assembly is arranged in the casing 10 and located below the box seat 70.

[0203] The bottom of the box seat 70 is provided with an avoidance hole, and the second clean water tank 40 can be detachably arranged in the box seat 70, so as to facilitate the removal of the second clean water tank 40 for cleaning; the connecting valve 80 includes a first valve port, a second valve port and a third valve port, the first valve port is connected to the water outlet 2112 on the first clean water tank 20, and the third valve port is connected to the third clean water tank 50; the second clean water tank 40 includes a water tank inlet, and the water tank inlet can be connected to the second valve port through the avoidance hole. By providing the connecting valve 80, the first clean water tank 20, the second clean water tank 40 and the third clean water tank 50 can be connected, which is conducive to simplifying the structure.

[0204] like Fig.25 As shown, the connecting valve 80 includes a valve body 81 and a valve core assembly, and the first valve port, the second valve port and the third valve port are all arranged on the valve body 81. The valve core assembly is arranged at the second valve port, and the valve core assembly can open the second valve port when the second clean water tank is installed in the tank seat 70, so that the second valve port is connected to the second clean water tank, and can close the second valve port when the second clean water tank is removed from the tank seat 70, so as to prevent pure water from overflowing from the second valve port.

[0205] Specifically, the valve core assembly includes a valve body valve core 82 and a valve body elastic member 84. The valve body valve core 82 is slidably disposed in the second valve port, and the end of the valve body valve core 82 extending into the second valve port is the first blocking end; the valve body elastic member 84 elastically connects the valve body valve core 82 and the valve body 81. The elastic force of the valve body elastic member 84 can drive the valve body valve core 82 to move outward from the valve body 81, so that the first blocking end blocks the second valve port. When the second clean water tank is installed on the tank seat 70, as shown in FIG. Fig.25 As shown, the second clean water tank abuts against the valve body valve core 82, so that the valve body valve core 82 overcomes the elastic force of the valve body elastic member 84 and moves into the valve body 81, so that the first blocking end opens the second valve port. Fig.26 As shown, the valve body valve core 82 moves outward from the valve body 81 under the driving action of the valve body elastic member 84, so that the first blocking end gradually approaches the second valve port, thereby blocking the second valve port to prevent pure water from overflowing.

[0206] Optionally, the valve body elastic member 84 may be a spring. Further, the first blocking end may be sleeved with a first sealing member 83, and the first sealing member 83 is elastic so as to better block the second valve port.

[0207] The valve body 81 includes a three-way pipe 812 and a valve seat 811. The two pipe ports of the three-way pipe 812 form a first valve port and a third valve port respectively, and the other pipe port is equipped with a valve seat 811, which forms a second valve port. A sealing ring is arranged between the valve seat 811 and the three-way pipe 812 to achieve sealing.

[0208] In order to enable the second valve port to communicate with the interior of the second clean water tank, the second clean water tank 40 includes a second tank body 41 and a water tank valve core assembly 43. The second tank body 41 is detachably connected to the tank seat 70, and the water tank inlet is arranged on the bottom surface of the second tank body 41; the water tank valve core assembly 43 includes a water tank valve core 431 and a water tank elastic member 432. The water tank valve core 431 is slidably arranged in the water tank inlet, and the end of the water tank valve core 431 facing the interior of the second tank body 41 is the second blocking end; the water tank elastic member 432 elastically connects the water tank valve core 431 and the second tank body 41, and the elastic force of the water tank elastic member 432 can drive the water tank valve core 431 to slide out of the second tank body 41, so that the second blocking end blocks the water tank inlet. When the second clean water tank is installed on the tank seat 70, the water tank valve core 431 abuts against the valve body valve core 82, and the two interact with each other. The abutting force of the water tank valve core 431 on the valve body valve core 82 pushes the valve body valve core 82 to move into the valve body 81 to open the second valve port; the abutting force of the valve body valve core 82 on the water tank valve core 431 pushes the water tank valve core 431 to move into the second tank 41 to open the water tank inlet, thereby connecting the connecting valve 80 with the second clean water tank. When the second clean water tank is removed from the tank seat 70, the water tank valve core 431 moves to the outside of the second tank 41 under the drive of the water tank elastic member 432, so that the second blocking end blocks the water tank inlet to prevent the second clean water tank from leaking.

[0209] Optionally, the water tank elastic member 432 may be a spring. Further, the second blocking end may be sleeved with a second sealing member 433, and the second sealing member 433 is elastic to better block the water tank inlet.

[0210] In order to improve the stability of the movement of the water tank valve core 431, a limiting sleeve 411 is protruded around the water tank inlet on the bottom surface of the second box body 41, and the water tank valve core 431 is located in the limiting sleeve 411. A limiting groove is provided on the connecting valve 80, and the limiting sleeve 411 can be inserted into the limiting groove and abut against the bottom surface of the limiting groove. The cooperation between the limiting sleeve 411 and the limiting groove facilitates the positioning of the second clean water tank and the connecting valve 80, thereby simplifying assembly.

[0211] Optionally, a fifth sealing member is provided between the limiting groove and the limiting sleeve 411 to improve the sealing effect at the joint between the second clean water tank and the connecting valve 80 .

[0212] In order to make the second clean water tank more stably placed in the box seat 70, the box seat 70 is provided with an annular flange 71 protruding into the box seat 70 around the avoidance hole, and the bottom of the second box body 41 is provided with a support portion 412 protruding, the support portion 412 abuts against the inner bottom surface of the box seat 70, and the annular flange 71 abuts against the bottom surface of the second box body 41. The second box body 41 is supported by the support portion 412 and the annular flange 71, so that the position of the second box body 41 is more stable. The limiting sleeve 411 is inserted into the annular flange 71, which can facilitate the positioning of the second clean water tank and the box seat 70.

[0213] To prevent the gravity of the second clean water tank from being concentrated on the annular flange 71 and causing damage to the annular flange 71 , the height of the limiting sleeve 411 is smaller than the height of the support portion 412 protruding from the second box body 41 , so that the support portion 412 can also play a role in supporting the second box body 41 .

[0214] In order to facilitate the disassembly of the second clean water tank, a handle is rotatably provided on the cover 42 of the second clean water tank. The handle can be rotated to a vertical position of the cover 42, or rotated to be stacked on the top surface of the cover 42 for storage. The second clean water tank can be taken in and out by lifting the handle, which is convenient for operation.

[0215] A handle is provided and is located in the middle of the box cover 42. In order to prevent the handle from protruding from the box cover 42 and occupying a large space when stored, an avoidance groove is provided on the top surface of the box cover 42. When the handle is folded on the box cover 42, the handle is completely arranged in the avoidance groove.

[0216] In some embodiments, two handles may be provided, and the two handles are rotatably disposed on opposite sides of the box cover 42 .

[0217] To facilitate the disassembly and assembly of the box cover 42 and the second box body 41, lock buckles are rotatably connected on opposite sides of the box cover 42, and a locking portion that engages with the lock buckle is provided at the top of the second box body 41. The box cover 42 and the second box body 41 can be fixed by engaging the lock buckle with the locking portion.

[0218] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A water purification device, It is characterized in that include: Body; A first clean water tank (20), the first clean water tank (20) comprising a water inlet (222), a first water outlet (2111) and a water outlet (2112), the water inlet (222) being higher than the first water outlet (2111), and the water outlet (2112) being lower than the first water outlet (2111); A second clean water tank (40) is detachably mounted on the machine body, wherein the second clean water tank (40) comprises a second water outlet; a third clean water tank (50) for detecting the water levels of the second clean water tank (40) and the third clean water tank (50); the third clean water tank (50) comprises a third water outlet, the third water outlet is at the same height as the second water outlet, the capacity of the third clean water tank (50) is smaller than the capacity of the second clean water tank (40), and the first water outlet (2111) can be connected with the second water outlet and the third water outlet in sequence, so that the second clean water tank (40) and the third clean water tank (50) are connected and have the same water level; A water outlet structure (30), connected to the water outlet (2112), for providing liquid to a user; The water in the first clean water tank (20) can flow from the first water outlet (2111) to the second water outlet and the third water outlet in sequence; the water in the second clean water tank (40) and the third clean water tank (50) can flow to the first water outlet (2111) simultaneously through the second water outlet and the third water outlet respectively.

2. The water purification device according to claim 1, It is characterized in that The heights of the second clean water tank (40) and the third clean water tank (50) are both higher than the first water outlet (2111); the second water outlet is arranged on the bottom surface of the second clean water tank (40); and the third water outlet is arranged on the bottom surface of the third clean water tank (50).

3. The water purification device according to claim 1, It is characterized in that The first clean water tank (20) comprises: A first box body (21), wherein the water inlet (222), the first water outlet (2111) and the water outlet (2112) are all arranged on the first box body (21); A first lamp assembly is arranged on the first box (21), a light-emitting surface of the first lamp assembly faces the interior of the first box (21), and the first lamp assembly is used to illuminate water.

4. The water purification device according to claim 3, It is characterized in that The first lamp assembly includes an illumination lamp and / or a germicidal lamp.

5. The water purification device according to claim 3, It is characterized in that At least a portion of the first box (21) is arranged outside the body and is made of light-transmitting material.

6. The water purification device according to claim 3, It is characterized in that The first clean water tank (20) further comprises a hydrogen-rich component (23), wherein the hydrogen-rich component (23) is arranged at the bottom of the first tank body (21) and is in communication with the first tank body (21), and the first clean water tank (20) is used for ionizing water in the first tank body (21) to form hydrogen-rich water.

7. The water purification device according to claim 6, It is characterized in that The hydrogen-rich component (23) is detachably connected to the first box (21), and the hydrogen-rich component (23) is located outside the machine body.

8. The water purification device according to claim 7, It is characterized in that The hydrogen-rich component (23) comprises: A hydrogen-rich shell, a reaction chamber (2320) is formed on the top of the hydrogen-rich shell, and the reaction chamber (2320) is communicated with the first box (21); An electrode (233) is disposed in the reaction chamber (2320), and the electrode (233) is used to ionize water in the reaction chamber (2320).

9. The water purification device according to claim 8, It is characterized in that The hydrogen-rich housing is detachably connected to the first box body (21).

10. The water purification device according to claim 9, It is characterized in that One of the hydrogen-rich housing and the first box body (21) is provided with a mounting flange (23212), and the other is provided with a mounting groove (2121), and the mounting flange (23212) can extend into the mounting groove (2121) and be engaged with the mounting groove (2121); Preferably, a groove (2122) is provided on the side wall of the installation groove (2121), and the groove (2122) comprises a screw-in section (21221) and a clamping section (21222) connected to each other, the screw-in section (21221) extends along the axial direction of the installation groove (2121) and passes through the bottom end surface of the first box body (21), and the clamping section (21222) extends along the circumferential direction of the installation groove (2121); The mounting flange (23212) is provided with a protrusion (23213), and the protrusion (23213) can be screwed into the clamping section (21222) from the screw-in section (21221) and clamped with the clamping section (21222); Preferably, the hydrogen-rich component (23) further comprises an outer cover (234), wherein the outer cover (234) is disposed outside the hydrogen-rich housing, and the outer cover (234) is fixed to the first box (21) by adsorption; Preferably, a first magnetic attraction component is arranged inside the outer cover (234), a second magnetic attraction component (213) is arranged on the first clean water tank (20), and the first magnetic attraction component can be adsorbed and fixed to the second magnetic attraction component (213); Preferably, the first magnetic attraction members are disposed on opposite sides of the outer cover (234), and the first magnetic attraction members on the two sides have opposite magnetic properties; Preferably, the hydrogen-rich component (23) further comprises a male terminal (235) and a female terminal (236), wherein the female terminal (236) is arranged at the bottom of the first box (21), and the female terminal (236) is used to connect a power source; The male terminal (235) is disposed in the hydrogen-rich housing, one end of the male terminal (235) is connected to the electrode (233), and the other end of the male terminal (235) can extend out of the hydrogen-rich housing to dock with the female terminal (236); Preferably, a mounting cavity is formed in the hydrogen-rich housing, the electrode (233) comprises a lead-out end, the lead-out end extends out of the reaction cavity (2320) and is located in the mounting cavity, and the male terminal (235) is disposed in the mounting cavity and is conductively connected to the lead-out end; Preferably, the male terminal (235) comprises: A main body (2351) is slidably disposed in the installation cavity along a vertical direction; A sliding part (2352) is connected to the main body (2351), the hydrogen-rich shell is provided with a sliding hole (2312), and the sliding part (2352) passes through the sliding hole (2312) and can slide along the sliding hole (2312); A coupling portion (2353) connected to the main body (2351), the coupling portion (2353) can be received in the installation cavity or extended out of the installation cavity, and the coupling portion (2353) is used to dock with the female terminal (236); Preferably, a slide groove (2313) is provided in the installation cavity, the sliding hole (2312) is connected to the slide groove (2313), and the main body (2351) is slidably arranged in the slide groove (2313); Preferably, a guide groove (2311) is provided on the outer wall of the hydrogen-rich shell, the sliding hole (2312) is provided in the guide groove (2311), and the sliding part (2352) is slidably provided in the guide groove (2311); Preferably, the hydrogen-rich housing is provided with a pressing rib (23214) in the reaction chamber (2320), and the pressing rib (23214) is used to press the electrode (233) into the reaction chamber (2320); Preferably, the hydrogen-rich shell comprises a hydrogen-rich shell (231) and an electrode shell (232); the top of the hydrogen-rich shell (231) is provided with an opening, the electrode shell (232) is covered at the opening, the electrode shell (232) forms the reaction chamber (2320), and the electrode (233) is arranged in the reaction chamber (2320); Preferably, the electrode shell (232) comprises an upper cover (2321) and a lower cover (2322) which are detachably connected, the upper cover (2321) is provided with a central hole and a mounting flange (23212) arranged circumferentially around the central hole, and the electrode (233) is clamped and fixed between the upper cover (2321) and the lower cover (2322) and is directly opposite to the central hole; Preferably, the electrode shell (232) further comprises a third sealing member (2323), wherein the third sealing member (2323) is sleeved on the circumferential edge of the electrode (233), and the third sealing member (2323) is respectively in contact with the upper cover (2321) and the lower cover (2322); Preferably, the first housing (21) comprises: A cup body (211), wherein a through hole is provided on the bottom surface of the cup body (211), and a positioning sleeve (2113) is provided on the bottom surface of the cup body (211) in a circumferential direction around the through hole; A cup seat (212) connected to the bottom of the cup body (211), the cup seat (212) is annular and arranged around the through hole, and the mounting flange (23212) is located in the positioning sleeve (2113); a fourth sealing member (214), the fourth sealing member (214) comprising a top sealing portion, a side sealing portion and a bottom sealing portion connected in sequence, the top sealing portion being pressurized against the bottom surface of the cup body (211) by the mounting flange (23212), the side sealing portion being clamped between the mounting flange (23212) and the positioning sleeve (2113), and the bottom sealing portion being clamped between the positioning sleeve (2113) and the cup holder (212); Preferably, the body comprises: A housing (10), wherein the first clean water tank (20) is arranged on the front side of the housing (10); a tank seat (70), the tank seat (70) being arranged in the housing (10), the second clean water tank (40) and the third clean water tank (50) both being arranged on the tank seat (70); Preferably, the front side wall of the housing (10) is concave to form a receiving groove, and the first clean water tank (20) is arranged in the receiving groove; Preferably, an operation panel is provided on the top of the front side wall of the housing (10), and the operation panel is located above the first clean water tank (20); Preferably, the water purification device further comprises a connecting valve (80), the connecting valve (80) comprising a first valve port, a second valve port and a third valve port, the first valve port being connected to the first water outlet (2111), the second valve port being connected to the second water outlet, and the third valve port being connected to the third water outlet; Preferably, the connecting valve (80) comprises a valve body (81) and a valve core assembly, and the first valve port, the second valve port and the third valve port are all arranged on the valve body (81); The valve core assembly is arranged at the second valve port, and the valve core assembly can open the second valve port when the second clean water tank (40) is installed in the tank seat (70) so that the second valve port is connected to the second clean water tank (40), and can close the second valve port when the second clean water tank (40) is removed from the tank seat (70); Preferably, the valve core assembly comprises: A valve body and valve core (82) is slidably disposed in the second valve port, and one end of the valve body and valve core (82) extending into the second valve port is a first blocking end; a valve body elastic member (84), wherein the valve body elastic member (84) elastically connects the valve body valve core (82) and the valve body (81), and the elastic force of the valve body elastic member (84) can drive the valve body valve core (82) to move outward from the valve body (81), so that the first blocking end blocks the second valve port; Preferably, the valve core assembly further comprises a first sealing member (83), wherein the first sealing member (83) is sleeved on the first blocking end; Preferably, the second clean water tank (40) comprises: A second box body (41), the second box body (41) is detachably connected to the box seat (70), and the second water outlet is arranged on the bottom surface of the second box body (41); A water tank valve core (431) is slidably disposed in the second water outlet, and one end of the water tank valve core (431) facing the interior of the second box body (41) is a second blocking end; A water tank elastic member (432), wherein the water tank elastic member (432) elastically connects the water tank valve core (431) and the second tank body (41), and the elastic force of the water tank elastic member (432) can drive the water tank valve core (431) to slide outside the second tank body (41), so that the second blocking end blocks the second water outlet; Preferably, the second blocking end outer sleeve is provided with a second sealing member (433); Preferably, a limiting sleeve (411) is convexly provided on the bottom surface of the second box body (41) around the second water outlet, the water tank valve core (431) is located in the limiting sleeve (411), and a limiting groove is provided on the connecting valve (80), and the limiting sleeve (411) can be inserted into the limiting groove and abut against the bottom surface of the limiting groove; Preferably, a avoidance hole is provided at the bottom of the box seat (70), and the second water outlet can be communicated with the second valve port through the avoidance hole. The box seat (70) is provided with an annular flange (71) protruding into the box seat (70) around the avoidance hole. A supporting portion (412) is protruding at the bottom of the second box body (41), and the supporting portion (412) abuts against the inner bottom surface of the box seat (70). The annular flange (71) abuts against the bottom surface of the second box body (41), and the height of the limiting sleeve (411) is less than the height of the supporting portion (412) protruding from the second box body (41); Preferably, the second clean water tank (40) further comprises a tank cover (42), and a lock buckle is rotatably provided on one of the second tank body (41) and the tank cover (42), and a locking portion that engages with the lock buckle is provided on the other; Preferably, a handle is rotatably provided on the box cover (42), and the handle can be perpendicular to the box cover (42) or overlapped on the top surface of the box cover (42); Preferably, the top surface of the box cover (42) is provided with an escape groove, and the handle is rotatably arranged in the escape groove, and when the handle is overlapped on the top surface of the box cover (42), the handle is completely located in the escape groove; Preferably, the water purification device further comprises a sterilization mechanism, and the sterilization mechanism is capable of sterilizing the purified water inside the second water purification tank (40) when the second water purification tank (40) is installed on the tank seat (70); Preferably, the sterilization mechanism comprises: A germicidal lamp assembly (91), wherein a mounting hole is provided at the bottom of the clean water tank (40), at least a light-emitting end of the germicidal lamp assembly (91) is sealed and arranged in the mounting hole, and a conductive contact pin (913) is provided on the bottom surface of the germicidal lamp assembly (91); A lamp holder assembly (92) is arranged on the box seat (70) and is used to connect to a power source. A conductive female socket (922) is arranged on the lamp holder assembly (92), and the conductive female socket (922) can contact the conductive contact pin (913) to supply power to the germicidal lamp assembly (91); Preferably, the germicidal lamp assembly (91) comprises: A circuit protection shell (911), wherein a lamp hole is provided on the top surface of the circuit protection shell (911), and a contact pin hole is provided on the bottom surface of the circuit protection shell (911); A circuit board (912) is arranged in the circuit protection shell (911), and the conductive contact pin (913) is arranged on the circuit board (912) and passes through the contact pin hole; A germicidal lamp (914) is arranged on the circuit board (912), and the germicidal lamp (914) passes through the lamp hole and the mounting hole in sequence; Preferably, the water purification device further comprises: A detection trigger component, arranged on the bottom surface of the germicidal lamp assembly (91); A detection sensing component is arranged on the lamp holder assembly (92), and the detection trigger component can trigger the detection sensing component when the clean water tank (40) is installed on the tank seat (70); Preferably, the sterilization mechanism comprises: A lampshade, wherein a mounting hole is provided on the bottom surface of the clean water tank (40), and the lampshade is sealed and arranged in the mounting hole; A germicidal lamp assembly (91) is fixedly mounted on the box seat (70) and connected to a power source. When the clean water tank (40) is installed on the box seat (70), the light-emitting end of the germicidal lamp assembly (91) extends into the lampshade; Preferably, the lampshade comprises: A cover body (931) is arranged in the clean water tank (40) and is partially located in the mounting hole; A lampshade sealing member (933) is arranged between the mounting hole and the cover body (931); A lampshade cover (932) is sleeved outside the cover body (931) and is detachably connected to the clean water tank (40), and the lampshade cover (932) is used to press the cover body (931) toward the clean water tank (40); Preferably, the third clean water tank (50) comprises: A detection box (51), wherein a vent is provided at the top of the detection box (51); A water level float (54) is disposed in the detection box (51) so as to rise and fall as the water level in the detection box (51) changes; A water level sensing component is arranged on the detection box (51), and the water level sensing component can be triggered by the water level float (54); Preferably, the top of the first clean water tank (20) is provided with an exhaust port (221), and the exhaust port (221) is communicated with the detection box (51); Preferably, the exhaust port (221) is higher than a preset maximum water level of the third clean water tank (50); Preferably, the first clean water tank (20) comprises a first tank body (21) and a joint (22), the joint (22) being connected to the first tank body (21), a flow channel communicating with the interior of the first tank body (21) being arranged in the joint (22), the water inlet (222) and the air outlet (221) being both arranged on the joint (22) and communicating with the flow channel, the air outlet (221) being higher than the water inlet (222), and the first water outlet (2111) and the water outlet (2112) being arranged on the first tank body (21); Preferably, the flow channel extends in the height direction of the first box body (21), and a vertically extending partition (223) is provided at the top of the flow channel to separate the top of the flow channel into two branches, the bottom end height of the partition (223) is lower than the height of the water inlet (222), and a vent hole (2231) is provided at the top of the partition (223); Preferably, the third clean water tank (50) further comprises an anti-overflow float (55) and an anti-overflow sensor (53), wherein the anti-overflow float (55) is slidably disposed in the detection box (51) along a vertical direction, and the anti-overflow float (55) can trigger the anti-overflow sensor (53) when sliding to an overflow critical liquid level of the detection box (51); Preferably, the water purification device further comprises a heater, the water outlet structure (30) comprises a normal temperature water inlet and a hot water inlet, the water outlet (2112) is respectively connected to the normal temperature water inlet and the inlet of the heater, and the outlet of the heater is connected to the hot water inlet; Preferably, the water purification device further comprises a thermos cup (60), the outlet of the heater can be connected to the thermos cup (60), and the outlet of the thermos cup (60) can be connected to the inlet of the heater; Preferably, the water purification device further comprises: a filter assembly, which is arranged on the body, the filter assembly is used to filter water, and the water inlet (222) is connected to the filter assembly.

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