Water purifying device

Abstract

The utility model belongs to the technical field of water purification devices, and discloses a water purification device. The water purifying device comprises a machine body, a first water purifying tank, a second water purifying tank and a third water purifying tank, the first water purifying tank comprises a water inlet, a first water passing port and a water outlet, the water inlet is higher than the first water passing port, and the water outlet is lower than the first water passing port; 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. The water purifying device can solve the problem that water level detection is inaccurate due to the fact that water levels in two existing water purifying tanks are difficult to quickly reach balance.

Description

Technical Field

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

[0002] With the improvement of people's living standards, 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] A water purification tank for storing purified water is provided in the water purifier, and the water purification tank is detachable for easy cleaning. In order to obtain the water level in the water purification tank to timely supplement purified water, a water level detection member needs to be provided in the water purification tank. Not only does the water level detection member in the water purification tank need to be electrically connected to external devices of the water purification tank, but also a sealing structure needs to be added, resulting in a complex structure inside the water purification tank. Moreover, the frequent disassembly and assembly of the water purification tank easily cause damage to the water level detection member.

[0004] Some water purifiers are provided with two water purification tanks. One water purification tank is detachable, and a water level detection member is provided in the other water purification tank. The two water purification tanks are connected to make their water levels the same. Although this method can simplify the structure of the detachable water purification tank and reduce the failure rate of the water level detection member, it is difficult for the water levels in the two water purification tanks to quickly reach equilibrium, resulting in inaccurate water level detection. Summary of the Utility Model

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

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] A water purification device, comprising:

[0008] A body;

[0009] A first water purification tank, the first water purification tank includes a water inlet, a first water passing port and a water outlet, the water inlet is higher than the first water passing port, and the water outlet is lower than the first water passing port;

[0010] A second water purification tank, detachably arranged on the body, the second water purification tank includes a second water passing port;

[0011] A third water purification tank, used to detect the water levels of the second water purification tank and the third water purification tank, the third water purification tank includes a third water passing port, the height of the third water passing port is the same as that of the second water passing port, the capacity of the third water purification tank is smaller than that of the second water purification tank, and the first water passing port can be sequentially communicated with the second water passing port and the third water passing port, so that the second water purification tank and the third water purification tank are communicated and have the same water level;

[0012] The water in the first clean water tank can flow sequentially from the first water passing port to the second water passing port and the third water passing port; the water in the second clean water tank and the third clean water tank can flow to the first water passing port simultaneously through the second water passing port and the third water passing port respectively.

[0013] As an alternative embodiment of the above water purification device, the heights of the second clean water tank and the third clean water tank are both higher than the first water passing port, the second water passing port is arranged at the bottom surface of the second clean water tank, and the third water passing port is arranged at the bottom surface of the third clean water tank.

[0014] As an alternative embodiment of the above water purification device, the first clean water tank includes:

[0015] A first box body, on which the water inlet, the first water passing port and the water outlet are all arranged;

[0016] A first lamp assembly, arranged on the first box body, the light emitting surface of the first lamp assembly faces the interior of the first box body, and the first lamp assembly is used for illuminating the water.

[0017] As an alternative embodiment of the above water purification device, the first lamp assembly includes a lighting lamp and / or a germicidal lamp.

[0018] As an alternative embodiment of the above water purification device, at least part of the first box body is arranged outside the machine body and is made of a light-transmitting material.

[0019] As an alternative embodiment of the above water purification device, the first clean water tank further includes a hydrogen-rich component, the hydrogen-rich component is arranged at the bottom of the first box body and is communicated with the first box body, and the first clean water tank is used for ionizing the water in the first box body to form hydrogen-rich water.

[0020] As an alternative embodiment of the above water purification device, the hydrogen-rich component is detachably connected to the first box body, and the hydrogen-rich component is located outside the machine body.

[0021] As an alternative embodiment of the above water purification device, the hydrogen-rich component includes:

[0022] A hydrogen-rich outer shell, a reaction cavity is formed at the top of the hydrogen-rich outer shell, and the reaction cavity is communicated with the first box body;

[0023] An electrode, arranged in the reaction cavity, and the electrode is used for ionizing the water in the reaction cavity.

[0024] As an alternative embodiment of the above water purification device, the hydrogen-rich outer shell is detachably connected to the first box body.

[0025] As an alternative to the above water purification device, one of the hydrogen-rich outer shell and the first box body is provided with a mounting flange, and the other is provided with a mounting groove. The mounting flange can extend into the mounting groove and be snap-fitted with the mounting groove.

[0026] As an alternative to the above water purification device, a groove is provided on the side wall of the mounting groove. The groove includes a screwing-in section and a snap-fitting section connected to each other. The screwing-in section extends along the axial direction of the mounting groove and penetrates the bottom end face of the first box body, and the snap-fitting section extends along the circumferential direction of the mounting groove;

[0027] A protrusion is provided on the mounting flange. The protrusion can be screwed into the snap-fitting section from the screwing-in section and be snap-fitted with the snap-fitting section.

[0028] As an alternative to the above water purification device, the hydrogen-rich component further includes an outer cover. The outer cover covers the outside of the hydrogen-rich outer shell, and the outer cover is adsorbed and fixed to the first box body.

[0029] As an alternative to the above water purification device, a first magnetic member is provided inside the outer cover, and a second magnetic member is provided on the first water purification tank. The first magnetic member can be adsorbed and fixed to the second magnetic member.

[0030] As an alternative to the above water purification device, the first magnetic members are provided on both opposite sides inside the outer cover, and the magnetic properties of the first magnetic members on both sides are opposite.

[0031] As an alternative to the above water purification device, the hydrogen-rich component further includes a male terminal and a female terminal. The female terminal is provided at the bottom of the first box body, and the female terminal is used for connecting to a power source;

[0032] The male terminal is provided inside the hydrogen-rich outer 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 outer shell to be docked with the female terminal.

[0033] As an alternative to the above water purification device, an installation cavity is formed inside the hydrogen-rich outer shell. The electrode includes a lead-out end. The lead-out end extends out of the reaction cavity and is located inside the installation cavity. The male terminal is provided inside the installation cavity and is electrically connected to the lead-out end.

[0034] As an alternative to the above water purification device, the male terminal includes:

[0035] A main body, which is slidably arranged in the installation cavity in the vertical direction;

[0036] A sliding part, which is connected to the main body. A sliding hole is provided on the hydrogen-rich outer shell. The sliding part passes through the sliding hole and can slide along the sliding hole;

[0037] A coupling part, connected to the main body, the coupling part can be received in the installation cavity or extend out of the installation cavity, and the coupling part is used for docking with the female terminal.

[0038] As an alternative solution of the above water purification device, a sliding groove is provided in the installation cavity, the sliding hole communicates with the sliding groove, and the main body is slidably arranged in the sliding groove.

[0039] As an alternative solution of the above water purification device, a guiding groove is provided on the outer wall of the hydrogen-rich outer shell, the sliding hole is arranged in the guiding groove, and the sliding part is slidably arranged in the guiding groove.

[0040] As an alternative solution of the above water purification device, a pressing rib is provided in the reaction cavity of the hydrogen-rich outer shell, and the pressing rib is used for pressing the electrode in the reaction cavity.

[0041] As an alternative solution of the above water purification device, the hydrogen-rich outer shell includes a hydrogen-rich shell and an electrode shell, an opening is provided at the top end of the hydrogen-rich shell, the electrode shell is covered at the opening, the electrode shell forms the reaction cavity, and the electrode is arranged in the reaction cavity.

[0042] As an alternative solution of the above water purification device, the electrode shell includes a detachable upper cover and a lower cover, the upper cover is provided with a central hole and an installation flange arranged circumferentially around the central hole, and the electrode is clamped and fixed between the upper cover and the lower cover and is aligned with the central hole.

[0043] As an alternative solution of the above water purification device, the electrode shell further includes a third sealing member, the third sealing member is sleeved on the circumferential edge of the electrode, and the third sealing member is in contact with the upper cover and the lower cover respectively.

[0044] As an alternative solution of the above water purification device, the first box body includes:

[0045] A cup body, a through hole is provided on the bottom surface of the cup body, and a positioning sleeve is arranged circumferentially around the through hole on the bottom surface of the cup body;

[0046] A cup base, connected to the bottom of the cup body, the cup base is annular and arranged around the through hole, and the installation flange is located in the positioning sleeve;

[0047] A fourth sealing member, the fourth sealing member includes a top sealing part, a side sealing part and a bottom sealing part connected in sequence, the top sealing part can be pressed by the installation flange against the bottom surface of the cup body, the side sealing part can be clamped between the installation flange and the positioning sleeve, and the bottom sealing part can be clamped between the positioning sleeve and the cup base.

[0048] As an alternative to the above water purification device, the body includes:

[0049] A housing, and the first water purification tank is arranged on the front side of the housing;

[0050] A tank base, which is arranged inside the housing, and both the second water purification tank and the third water purification tank are arranged on the tank base.

[0051] As an alternative to the above water purification device, a receiving groove is formed by concaving the front side wall of the housing, and the first water purification tank is arranged in the receiving groove.

[0052] As an alternative to the above water purification device, an operation panel is arranged at the top of the front side wall of the housing, and the operation panel is located above the first water purification tank.

[0053] As an alternative to the above water purification device, the water purification device further includes a connection valve, the connection valve includes a first valve port, a second valve port and a third valve port, the first valve port communicates with the first water passing port, the second valve port communicates with the second water passing port, and the third valve port communicates with the third water passing port.

[0054] As an alternative to the above water purification device, the connection 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;

[0055] 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 water purification tank is installed in the tank base, so that the second valve port communicates with the second water purification tank, and can close the second valve port when the second water purification tank is removed from the tank base.

[0056] As an alternative to the above water purification device, the valve core assembly includes:

[0057] A valve body valve core, which is slidably arranged in the second valve port, and one end of the valve body valve core extending into the second valve port is a first sealing end;

[0058] A valve body elastic member, which 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 sealing end seals the second valve port.

[0059] As an alternative to the above water purification device, the valve core assembly further includes a first sealing member, and the first sealing member is sleeved on the first sealing end.

[0060] As an alternative solution to the above water purification device, the second water purification tank includes:

[0061] A second box body, which is detachably connected to the box seat, and the second water inlet is arranged on the bottom surface of the second box body;

[0062] A water tank valve core, which is slidably arranged in the second water inlet, and one end of the water tank valve core facing the inside of the second box body is the second blocking end;

[0063] A water tank elastic member, which elastically connects the water tank valve core and the second box body, and the elastic force of the water tank elastic member can drive the water tank valve core to slide out of the second box body so that the second blocking end blocks the second water inlet.

[0064] As an alternative solution to the above water purification device, a second sealing member is sleeved outside the second blocking end.

[0065] As an alternative solution to the above water purification device, a limiting sleeve is convexly arranged on the bottom surface of the second box body around the second water inlet. The water tank valve core is located inside the limiting sleeve. A limiting groove is arranged on the connecting valve, and the limiting sleeve can be inserted into the limiting groove and abuts against the bottom surface of the limiting groove.

[0066] As an alternative solution to the above water purification device, an avoidance hole is arranged at the bottom of the box seat, and the second water inlet can be communicated with the second valve port through the avoidance hole. A circular flange is convexly arranged around the avoidance hole towards the inside of the box seat. A supporting portion is convexly arranged at the bottom of the second box body, and the supporting portion abuts against the inner bottom surface of the box seat. The circular 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 supporting portion protruding from the second box body.

[0067] As an alternative solution to the above water purification device, the second water purification tank further includes a box cover. A buckle is rotatably arranged on one of the second box body and the box cover, and a locking portion that is engaged with the buckle is arranged on the other.

[0068] As an alternative solution to the above water purification device, a handle is rotatably arranged on the box cover, and the handle can be perpendicular to the box cover or stacked on the top surface of the box cover.

[0069] As an alternative solution to the above water purification device, an avoidance groove is arranged on the top surface of the box cover, and the handle is rotatably arranged in the avoidance groove. When the handle is stacked on the top surface of the box cover, the handle is completely located inside the avoidance groove.

[0070] As an alternative solution to the above water purification device, the water purification device further includes a sterilization mechanism, which can sterilize the purified water inside the second water purification tank when the second water purification tank is installed on the tank base.

[0071] As an alternative solution to the above water purification device, the sterilization mechanism includes:

[0072] A second lamp assembly, an installation hole is provided at the bottom of the water purification tank, at least the light-emitting end of the second lamp assembly is hermetically arranged in the installation hole, and a conductive contact pin is arranged on the bottom surface of the second lamp assembly;

[0073] A lamp socket assembly, which is arranged on the tank base and used to connect to a power supply. A conductive female seat is arranged on the lamp socket assembly, and the conductive female seat can contact the conductive contact pin to supply power to the second lamp assembly.

[0074] As an alternative solution to the above water purification device, the second lamp assembly includes:

[0075] A circuit protection shell, a lamp hole is provided on the top surface of the circuit protection shell, and a contact pin hole is provided on the bottom surface of the circuit protection shell;

[0076] A circuit board, which is arranged inside the circuit protection shell. The conductive contact pin is arranged on the circuit board and passes through the contact pin hole;

[0077] A sterilization lamp, which is arranged on the circuit board, and the sterilization lamp sequentially passes through the lamp hole and the installation hole.

[0078] As an alternative solution to the above water purification device, the water purification device further includes:

[0079] A detection trigger, which is arranged on the bottom surface of the second lamp assembly;

[0080] A detection induction part, which is arranged on the lamp socket assembly. The detection trigger can trigger the detection induction part when the water purification tank is installed on the tank base.

[0081] As an alternative solution to the above water purification device, the sterilization mechanism includes:

[0082] A lamp cover, an installation hole is provided on the bottom surface of the water purification tank, and the lamp cover is hermetically arranged in the installation hole;

[0083] A second lamp assembly, which is fixedly arranged on the tank base and connected to a power supply. When the water purification tank is installed on the tank base, the light-emitting end of the second lamp assembly extends into the lamp cover.

[0084] As an alternative solution to the above water purification device, the lamp cover includes:

[0085] A cover body, which is arranged in the water purification tank and partially located in the mounting hole;

[0086] A lamp cover seal, which is arranged between the mounting hole and the cover body;

[0087] A lamp cover, which is sleeved outside the cover body and is detachably connected to the water purification tank, and the lamp cover is used to press the cover body against the water purification tank.

[0088] As an alternative embodiment of the above water purification device, the third water purification tank includes:

[0089] A detection box, the top of which is provided with a ventilation port;

[0090] A water level float, which is arranged in the detection box and rises and falls with the change of the water level in the detection box;

[0091] A water level sensing component, which is arranged on the detection box and can be triggered by the water level float.

[0092] As an alternative embodiment of the above water purification device, an exhaust port is provided at the top of the first water purification tank, and the exhaust port is communicated with the detection box.

[0093] As an alternative embodiment of the above water purification device, the exhaust port is higher than the preset highest water level of the third water purification tank.

[0094] As an alternative embodiment of the above water purification device, the first water purification tank includes a first box body and a joint. The joint is connected to the first box body, and a flow channel communicating with the inside of the first box body is arranged in the joint. The water inlet and the exhaust port are both arranged on the joint and communicated with the flow channel. The exhaust port is higher than the water inlet, and the first water passing port and the water outlet are arranged on the first box body.

[0095] As an alternative embodiment of the above water purification device, the flow channel extends along the height direction of the first box body, and a vertically extending partition is arranged at the top end of the flow channel to divide 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 ventilation hole is arranged at the top end of the partition.

[0096] As an alternative embodiment of the above water purification device, the third water purification tank further includes an anti-overflow float and an anti-overflow sensing member. The anti-overflow float is slidably arranged in the detection box in the vertical direction, and the anti-overflow float can trigger the anti-overflow sensing member when sliding to the overflow critical liquid level of the detection box.

[0097] As an alternative solution of the above water purification device, the water purification device further includes a heater and a water outlet structure. The water outlet structure is connected to the water outlet for providing liquid to users. The water outlet structure includes a normal temperature water inlet and a hot water inlet. The water outlet is respectively communicated with the normal temperature water inlet and the inlet of the heater, and the outlet of the heater is communicated with the hot water inlet.

[0098] As an alternative solution of the above water purification device, the water purification device further includes a thermos cup. The outlet of the heater can be communicated with the thermos cup, and the outlet of the thermos cup can be communicated with the inlet of the heater.

[0099] As an alternative solution of the above water purification device, the water purification device further includes a filtering assembly disposed on the body. The filtering assembly is used for filtering water, and the water inlet is communicated with the filtering assembly.

[0100] Advantages of the present utility model:

[0101] In the water purification device provided by the present utility model, the second water purification tank is detachably disposed on the body. The second water purification tank and the third water purification tank are communicated to form a communicating vessel. The volume of the third water purification tank is smaller than that of the second water purification tank. The water in the first water purification tank flows into the second water purification tank and the third water purification tank in sequence, that is, the water in the first water purification tank first enters the second water purification tank.

[0102] By adding a third water purification tank and a second water purification tank to form a communicating vessel, and using the principle of the communicating vessel, the water level in the second water purification tank is obtained by detecting the water level in the third water purification tank. There is no need to set a water level detection component in the second water purification tank, so there is no need to add a sealing structure and a conductive structure in the second water purification tank, which is beneficial to simplifying the internal structure of the second water purification tank.

[0103] The pure water in the first water purification tank first enters the second water purification tank, and the volume of the second water purification tank is larger than that of the third water purification tank, so that more water preferentially enters the second water purification tank, ensuring that the water levels in the second water purification tank and the third water purification tank quickly reach equilibrium, which is beneficial to improving the accuracy of water level detection. Description of the Drawings

[0104] Figure 1 is a schematic structural diagram of the water purification device provided by the present utility model;

[0105] Figure 2 is a partial structural schematic diagram of the water purification device provided by the present utility model Figure 1 ;

[0106] Figure 3 is Figure 2 the front view of

[0107] Figure 4It is a partial structural schematic diagram of the water purification device provided by the present utility model Figure 2 ;

[0108] Figure 5 It is a structural schematic diagram of the third water purification tank provided by the present utility model;

[0109] Figure 6 It is a cross-sectional view of the third water purification tank provided by the present utility model;

[0110] Figure 7 It is a structural schematic diagram of the first water purification tank provided by the present utility model;

[0111] Figure 8 It is a cross-sectional view of the first water purification tank provided by the present utility model;

[0112] Figure 9 It is a structural schematic diagram of the first box body provided by the present utility model;

[0113] Figure 10 It is a structural schematic diagram of the hydrogen-rich component provided by the present utility model;

[0114] Figure 11 It is a partial structural cross-sectional view of the first box body and the hydrogen-rich component provided by the present utility model;

[0115] Figure 12 It is a structural schematic diagram of the hydrogen-rich component without the outer cover assembled;

[0116] Figure 13 It is a structural schematic diagram of the electrode shell and the electrode provided by the present utility model Figure 1 ;

[0117] Figure 14 It is a structural schematic diagram of the electrode shell and the electrode provided by the present utility model Figure 2 ;

[0118] Figure 15 It is a structural schematic diagram of the electrode and the third seal provided by the present utility model;

[0119] Figure 16 It is a structural schematic diagram of the third seal provided by the present utility model;

[0120] Figure 17 It is a top view of the first water purification tank without the outer cover assembled;

[0121] Figure 18 It is a partial structural schematic diagram of the first box body and the hydrogen-rich component provided by the present utility model;

[0122] Figure 19 It is a structural schematic diagram of the joint provided by the present utility model;

[0123] Figure 20 is a cross-sectional view of the joint provided by the present utility model;

[0124] Figure 21 is a cross-sectional view of a sterilization mechanism provided by the present utility model;

[0125] Figure 22 is a cross-sectional view of another sterilization mechanism provided by the present utility model;

[0126] Figure 23 is a partial structural schematic diagram of the water purification device provided by the present utility model Figure 3 ;

[0127] Figure 24 is a structural schematic diagram of the first water inlet tank, the second water purification tank, the tank base and the connection valve provided by the present utility model;

[0128] Figure 25 is a cross-sectional view at the second water purification tank, the tank base and the connection valve provided by the present utility model;

[0129] Figure 26 is a structural schematic diagram of the second water purification tank and the tank base when not installed provided by the present utility model.

[0130] In the figure:

[0131] 10. Housing; 20. First water purification tank; 21. First box body; 211. Cup body; 2111. First water passing port; 2112. Water outlet; 2113. Positioning sleeve; 212. Cup holder; 2121. Installation groove; 2122. Groove; 21221. Screw-in section; 21222. Clamping section; 213. Adsorption component; 214. Fourth seal; 22. Connector; 221. Exhaust port; 222. Water inlet; 223. Partition board; 2231. Ventilation hole; 23. Hydrogen-rich component; 231. Hydrogen-rich shell; 2311. Guide groove; 2312. Sliding hole; 2313. Chute; 232. Electrode shell; 2320. Reaction chamber; 2321. Upper cover; 23211. Ring plate; 23212. Installation flange; 23213. Protrusion; 23214. Pressing rib; 2322. Lower cover; 2323. Third seal; 23231. Sealing bottom plate; 23232. Sealing top plate; 23233. Sealing side plate; 233. Electrode; 2331. First lead-out end; 2332. Second lead-out end; 234. Outer cover; 235. Male terminal; 2351. Main body; 2352. Sliding part; 2353. Coupling part; 236. Female terminal; 30. Water outlet structure; 40. Second water purification tank; 41. Second box body; 411. Limit sleeve; 412. Support part; 42. Tank cover; 43. Water tank valve core assembly; 431. Water tank valve core; 432. Water tank elastic part; 433. Second seal; 50. Third water purification tank; 51. Detection box; 511. Float groove; 521. High water level sensor; 522. Low water level sensor; 53. Anti-overflow sensor; 54. Water level float; 55. Anti-overflow float; 60. Heat preservation cup; 70. Tank base; 71. Ring flange; 80. Connecting valve; 81. Valve body; 811. Valve seat; 812. Three-way pipe; 82. Valve body valve core; 83. First seal; 84. Valve body elastic part; 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 seat; 93. Lamp cover; 931. Cover body; 932. Lamp cover lid; 933. Lamp cover seal. Detailed implementation manners

[0132] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the present utility model and not for limiting the present utility model. Additionally, it should be noted that for the sake of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0133] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0134] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0135] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0136] As Figures 1 - 3 shown, this embodiment provides a water purification device, which includes a machine body, a raw water tank, a booster pump, a filtration component, 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 inside the machine body. The booster pump is connected to the raw water tank and the filtration component, and provides power for the raw water in the raw water tank. The filtration component is used for filtering water. The first clean water tank 20 includes a water inlet 222, a first water passing port 2111, and a water outlet 2112. The water inlet 222 is used to connect to the filtration component, the water outlet 2112 is communicated with the water outlet structure 30, and the first water passing port 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 by the filtration component under the drive of the booster pump. The filtered pure water flows through the water inlet 222 to the first clean water tank 20, and flows through the water outlet 2112 of the first clean water tank 20 to the water outlet structure 30 for users to use.

[0137] The second water purification tank 40 is detachably arranged on the machine body. The second water purification tank 40 and the third water purification tank 50 are connected to form a communicating vessel. The volume of the third water purification tank 50 is smaller than that of the second water purification tank 40. The water in the first water purification tank 20 flows into the second water purification tank 40 and the third water purification tank 50 in sequence, that is, the water in the first water purification tank 20 first enters the second water purification tank 40.

[0138] In this embodiment, the third water purification tank 50 is added, and based on the principle of the communicating vessel, the water level in the second water purification tank 40 is obtained by detecting the water level in the third water purification tank 50. There is no need to set a water level detection component in the second water purification tank 40, so there is no need to add a sealing structure and a conductive structure in the second water purification tank 40, which is beneficial to simplifying the internal structure of the second water purification tank 40.

[0139] The pure water in the first water purification tank 20 first enters the second water purification tank 40, and the volume of the second water purification tank 40 is larger than that of the third water purification tank 50, so that more water preferentially enters the second water purification tank 40, ensuring that the water levels in the second water purification tank 40 and the third water purification tank 50 quickly reach equilibrium, which is beneficial to improving the accuracy of water level detection.

[0140] Specifically, the second water purification tank 40 includes a second water passing port, and the third water purification tank 50 includes a third water passing port. The second water passing port and the third water passing port can be connected. The heights of the second water passing port and the third water passing port are the same, so that the second water purification tank 40 and the third water purification tank 50 form a communicating vessel, and thus the water levels in the second water purification tank 40 and the third water purification tank 50 are detected through the third water purification tank 50. The first water passing port 2111 of the first water purification tank 20 can be connected to the second water passing port and the third water passing port in sequence, so that the first water purification tank 20 supplies purified water to the second water purification tank 40 and the third water purification tank 50 in sequence. Among them, the water in the first water purification tank 20 can first pass through the second water passing port and then through the third water passing port, so as to supply water to the second water purification tank 40 first and then supply pure water to the third water purification tank 50. When the water level in the first water purification tank 20 drops, the water in the second water purification tank 40 and the third water purification tank 50 can also flow to the first water passing port 2111 to supply water to the first water purification tank 20.

[0141] To enable the water in the second water purification tank 40 and the third water purification tank 50 to enter the first water purification tank 20, the heights of the second water purification tank 40 and the third water purification tank 50 are both higher than the first water passing port 2111. The second water passing port is arranged at the bottom surface of the second water purification tank 40, and the third water passing port is arranged at the bottom surface of the third water purification tank 50. This setting can drain the water in the second water purification tank 40 and the third water purification tank 50 completely to avoid residue.

[0142] It should be noted here that in order to enable the second clean water tank 40 and the third clean water tank 50 to form a communicating vessel to ensure that the water levels in the two are the same, the tops of the second clean water tank 40 and the third clean water tank 50 are both in communication with the atmosphere. Among them, the second clean water tank 40 can communicate with the atmosphere through its own assembly gaps, and the third clean water tank 50 is provided with a vent hole, and the third clean water tank 50 ensures communication with the atmosphere through the vent hole.

[0143] In this embodiment, as Figure 4 shown, the body includes a casing 10 and a tank base 70 provided in the casing 10. The first clean water tank 20 and the raw water tank are provided outside the casing 10, the second clean water tank 40 is provided in the tank base 70, the third clean water tank 50 is provided in the casing 10 and on one side of the tank base 70, and the filtration assembly is provided in the casing 10 and below the tank base 70.

[0144] To detect the water levels in the second clean water tank 40 and the third clean water tank 50, in this embodiment, as Figure 5 and Figure 6 shown, the third clean water tank 50 includes a detection tank 51, a water level float 54 and a water level sensing assembly. The third water inlet is provided at the bottom end of the detection tank 51. A vertically extending float groove 511 is provided in the detection tank 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 tank 51 rises and falls. The water level sensing assembly is provided on the detection tank 51. The water level sensing assembly can detect the position of the water level float 54 and is triggered respectively when the water level float 54 is at the preset low water level and the preset high water level in the detection tank 51.

[0145] When the water level float 54 is at the preset low water level, the water level float 54 triggers the water level sensing element, and the water level sensing assembly sends information to the main body of the water purification device. After the main body obtains the signal, it judges that the water level in the second clean water tank 40 is at the low water level and pure water needs to be replenished. At this time, the main body controls the booster pump to start, the raw water is prepared into pure water through the filtration assembly, and the pure water enters the second clean water tank 40 after passing through the first clean water tank 20 to replenish pure water into the second clean water tank 40. When replenishing pure water, the water level in the detection tank 51 increases, and the water level float 54 slides upward until it reaches the preset high water level and triggers the water level sensing assembly. The water level sensing assembly sends information to the main body, and the main body judges that the water level in the second clean water tank 40 is at the high water level and the water inlet needs to be stopped. The main body controls the booster pump to close and stops preparing the raw water to avoid the overflow of pure water in the second clean water tank 40 and the third clean water tank 50.

[0146] 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 member 522 and a high water level sensing member 521. The low water level sensing member 522 and the high water level sensing member 521 are arranged vertically. The low water level sensing member 522 corresponds to the preset low water level height in the detection box 51, and the high water level sensing member 521 corresponds to the preset high water level height in the detection box 51. Among them, both the low water level sensing member 522 and the high water level sensing member 521 can be proximity sensors. Correspondingly, the water level float 54 is a magnet, and the proximity sensor can sense the magnet within the sensing range.

[0147] Furthermore, the third clean water tank 50 further includes an anti-overflow float 55 and an anti-overflow sensing member 53. The anti-overflow float 55 is slidably arranged vertically in the detection box 51, and the anti-overflow float 55 can trigger the anti-overflow sensing member 53 when it slides to the overflow critical liquid level of the detection box 51. The anti-overflow sensing member 53 can send a signal to the host after being triggered. The host judges that there is a risk of overflow in the second clean water tank 40, stops supplying pure water to the second clean water tank 40, or issues a warning signal to prompt the user to perform maintenance in time.

[0148] In this embodiment, the first clean water tank 20 is arranged on the front side of the machine shell 10, so that the first clean water tank 20 is exposed. Specifically, a receiving groove is formed by the front outer wall of the machine shell 10 recessing into the machine shell 10. The first clean water tank 20 is arranged in the receiving groove, so that at least part of the first clean water tank 20 is exposed outside the machine shell 10. The first clean water tank 20 is arranged on the front side of the machine shell 10 and is visible from the outside of the water purification device, which can improve the user experience.

[0149] The machine body further includes an operation panel. The operation panel is arranged at the top of the front side wall of the machine shell 10. The operation panel is located above the first clean water tank 20 and is used for interacting with the user. The operation panel is communicatively connected to the host of the water purification device to realize the transmission of interaction instructions.

[0150] As Figure 7 shown, the first clean water tank 20 includes a first box body 21 and a first lamp assembly. The water inlet 222, the first water passing port 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 inside of the first box body 21 and is used to illuminate the water in the first box body 21 to improve the user experience.

[0151] In this embodiment, the first lamp assembly includes at least one of a lighting lamp and a sterilization lamp. The lighting lamp can illuminate the water in the first box body 21. When the first box body 21 has light transmissivity, the user can observe the water in the first box body 21 from the outside, giving the user an intuitive use experience. The sterilization lamp can disinfect and sterilize the water in the first box body 21 to improve the water use hygiene.

[0152] Optionally, the germicidal lamp can be an ultraviolet lamp.

[0153] In this embodiment, at least part of the first box body 21 is made of a light-transmitting material, so that the light emitted by the first lamp assembly can pass through the first box body 21, making the water and the bubbles generated during ionization inside the first box body 21 visible from the outside of the first box body 21, thereby improving the user experience and providing a visual effect for the user.

[0154] The first water purification tank 20 can also generate hydrogen-rich water. Specifically, the first water purification tank 20 further includes a hydrogen-rich component 23, and the hydrogen-rich component 23 is arranged at the bottom of the first box body 21 and communicated with the first box body 21. The hydrogen-rich component 23 is used to ionize the water inside the first box body 21 to form hydrogen-rich water.

[0155] The top surface of the hydrogen-rich component 23 has a reaction cavity 2320, and the reaction cavity 2320 is communicated with the inside of the first box body 21. The pure water entering the first box body 21 will enter the reaction cavity 2320 under the action of gravity, and then generate hydrogen ions through ionization to prepare hydrogen-rich water.

[0156] In this embodiment, the hydrogen-rich component 23 is arranged outside the machine shell 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. Among them, the bottom surface of the hydrogen-rich component 23 is spaced from the machine shell 10 to form a certain distance. By setting this distance, space can be provided for the disassembly and assembly of the hydrogen-rich component 23, which is convenient for operation.

[0157] The hydrogen-rich component 23 includes a hydrogen-rich outer shell and an electrode 233. The top of the hydrogen-rich outer shell forms a reaction cavity 2320, and the reaction cavity 2320 is communicated with the first box body 21; the electrode 233 is arranged in the reaction cavity 2320, and after the electrode 233 is energized, it can ionize the water in the reaction cavity 2320 to form hydrogen-rich water.

[0158] To facilitate the maintenance of the hydrogen-rich component 23, the hydrogen-rich component 23 is detachably connected to the first box body 21. As Figure 8 、 Figure 9 and Figure 10 shown, the hydrogen-rich component 23 includes a mounting flange 23212, the mounting flange 23212 is arranged around the reaction cavity 2320, and the bottom of the first box body 21 is provided with a mounting groove 2121 communicated with the inside of the first box body 21. The mounting flange 23212 can be inserted into the mounting groove 2121 and snap-fitted 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-fitting, which is convenient for disassembly and assembly and has a simple structure.

[0159] 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 screwing-in section 21221 and a clamping section 21222 that are connected to each other. The screwing-in section 21221 extends along the axial direction of the mounting groove 2121 and penetrates through the bottom end face of the first box body 21. The clamping section 21222 extends along the circumferential direction of the mounting groove 2121. The protrusion 23213 can enter the screwing-in section 21221 and can enter the clamping section 21222 from the screwing-in section 21221 as the hydrogen-rich component 23 rotates. By abutting against the side wall of the clamping section 21222, the hydrogen-rich component 23 is fixed to the first box body 21.

[0160] In some embodiments, the groove 2122 can be provided on the outer wall of the mounting flange 23212. Correspondingly, the protrusion 23213 is provided on the inner wall of the mounting groove 2121, and the hydrogen-rich component 23 can also be clamped to the first box body 21.

[0161] To improve the fixing effect between the first box body 21 and the hydrogen-rich component 23, two grooves 2122 are provided. Each groove 2122 is correspondingly provided with a protrusion 23213. The arrangement directions of the screwing-in sections 21221 and the clamping sections 21222 in the two grooves 2122 are the same, so that the two protrusions 23213 can be synchronously clamped into the corresponding grooves 2122.

[0162] In other embodiments, the number of the grooves 2122 can be set to three, four or more, and the specific number can be selected according to actual needs.

[0163] 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 therebetween.

[0164] The first box body 21 includes a cup body 211 and a cup seat 212. A through hole is provided on the bottom surface of the cup body 211. The cup seat 212 is provided on the bottom surface of the cup body 211 and is arranged around the circumference of the through hole. The cup seal can achieve sealing among the cup body 211, the cup seat 212, and the hydrogen-rich component 23.

[0165] Specifically, a positioning sleeve 2113 is also 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 installation groove. The fourth seal 214 includes a top seal part, a side seal part, and a bottom seal part that are connected in sequence. The top seal part can be pressed by the mounting flange 23212 against the bottom surface of the cup body 211. The side seal part can be clamped between the mounting flange 23212 and the positioning sleeve 2113. The bottom seal part can be clamped between the positioning sleeve 2113 and the cup base 212. Through the cooperation of the top seal part with the mounting flange 23212 and the bottom surface of the cup body 211, the sealing of the assembly position between the mounting flange 23212 and the cup body 211 is achieved. Through the cooperation of the bottom seal part with the positioning sleeve 2113 and the cup base 212, the sealing between the cup base 212 and the cup body 211 is achieved. Through the cooperation of the side seal part with the inner wall of the installation groove and the mounting flange 23212, the sealing between the cup body 211 and the hydrogen-rich component 23, and between the cup body 211 and the cup base 212 can be strengthened, and the sealing effect is good.

[0166] In other embodiments, the fourth seal 214 can be embedded in the positioning groove on the inner wall of the installation groove or the outer wall of the mounting flange 23212, and the sealing can also be achieved.

[0167] In order to be able to perform ionization, it is necessary to energize the electrode 233. For more convenient control of the start and stop of the electrode 233 and use safety, after the hydrogen-rich component 23 and the first box body 21 are assembled in the first water purification tank 20, the electrode can be energized, and when the hydrogen-rich component 23 is separated from the first box body 21, the power can be automatically cut off to improve the use safety.

[0168] As Figure 11 and Figure 12 shown, a male terminal 235 is provided in the hydrogen-rich component 23, and a female terminal 236 is provided in the first box body 21. The male terminal 235 is connected to the electrode 233, and the female terminal 236 is used to connect to the power supply. When the hydrogen-rich component 23 is installed at the bottom of the first box body 21, the female terminal 236 and the male terminal 235 are in contact and cooperate to achieve electrical connection. When the hydrogen-rich component 23 is removed from the first box body 21, the female terminal 236 and the male terminal 235 are separated and the connection is automatically disconnected.

[0169] Specifically, the hydrogen-rich outer 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 provided at the top end of the hydrogen-rich shell 231. The electrode shell 232 and the hydrogen-rich shell 231 enclose an installation cavity. One end of the male terminal 235 is provided in the installation cavity and is connected to 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 conductive connection.

[0170] Since the hydrogen-rich component 23 and the first box body 21 are fixed by the cooperation of the clamping protrusion 23213 and the groove 2122, and the clamping protrusion 23213 is assembled with the groove 2122 in a rotating manner, in order to ensure that the male terminal 235 can be docked with the female terminal 236 after the assembly is in place, as Figure 10 shown, a sliding hole 2312 extending along the height direction of the first box body 21 is provided in the hydrogen-rich shell 231. The male terminal 235 includes a main body 2351, a coupling portion 2353 and a sliding portion 2352. The main body 2351 is arranged in the hydrogen-rich shell 231 and can slide in the vertical direction. The sliding portion 2352 is slidably arranged in the sliding hole 2312, and a part of the sliding portion 2352 extends out of the hydrogen-rich shell 231 from the sliding hole 2312; the coupling portion 2353 can be inserted and cooperated with the female terminal 236 to achieve electrical connection and fixation.

[0171] Before assembling the first box body 21 and the hydrogen-rich component 23, first slide the male terminal 235 downward by pushing the sliding portion 2352, so that the coupling portion 2353 can retract into the hydrogen-rich shell 231. After the hydrogen-rich component 23 and the first box body 21 are rotationally assembled, slide the male terminal 235 upward by pushing the sliding portion 2352, so that the male terminal 235 extends out of the hydrogen-rich shell 231, so as to facilitate the male terminal 235 to cooperate with the female terminal 236. When disassembling the hydrogen-rich component 23, slide the male terminal 235 downward by pushing the sliding portion 2352, so that the male terminal 235 retracts into the hydrogen-rich shell 231, and then the hydrogen-rich component 23 and the first box body 21 can be disassembled by rotation.

[0172] To improve the stability of the male terminal 235 in the hydrogen-rich shell 231, a sliding groove 2313 is further provided in the hydrogen-rich shell 231. The main body 2351 is slidably arranged in the sliding groove 2313, and the sliding hole 2312 is communicated with the sliding groove 2313. By providing the sliding groove 2313, it can provide guidance for the sliding of the main body 2351 in the hydrogen-rich shell 231, improve the position accuracy of the coupling portion 2353, and ensure that the coupling portion 2353 can be docked with the female terminal 236.

[0173] To improve the stability of the sliding of the male terminal 235, a guiding groove 2311 is provided on the outer wall of the hydrogen-rich shell 231. The sliding hole 2312 is arranged in the guiding groove 2311, and the sliding portion 2352 is slidably arranged in the guiding groove 2311. By providing the guiding groove 2311, it can provide guidance for the sliding of the sliding portion 2352, so that the sliding of the male terminal 235 is more stable.

[0174] In this embodiment, the male terminal 235 and the electrode 233 can be connected by a conductive member, and the conductive member can be a wire. As Figure 13 and Figure 14As shown, the electrode 233 is disposed within the electrode housing 232. 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 housing 232 and are located within the installation cavity. Both the first lead-out end 2331 and the second lead-out end 2332 are connected with wires, and the wires are connected to the male terminal 235.

[0175] The electrode housing 232 includes an upper cover 2321 and a lower cover 2322. The upper cover 2321 and the lower cover 2322 are detachably connected, and a reaction cavity 2320 is formed between the upper cover 2321 and the lower cover 2322. The upper cover 2321 is provided with a central hole and an installation flange 23212 circumferentially arranged around the central hole. Both the first lead-out end 2331 and the second lead-out end 2332 pass through the lower cover 2322 to be connected to the male terminal 235 within the installation cavity. The electrode 233 is clamped and fixed between the upper cover 2321 and the lower cover 2322 and is aligned with the central hole. The upper cover 2321 and the lower cover 2322 are detachably connected to facilitate the maintenance and replacement of the electrode 233, further increasing the number of reusable parts in the hydrogen-rich component 23 and reducing the maintenance cost.

[0176] Among them, the upper cover 2321 includes an annular plate 23211 and an installation flange 23212 arranged around the central hole of the annular plate 23211. The installation flange 23212 protrudes towards the direction of the first box body 21. The lower cover 2322 is detachably disposed below the upper cover 2321. The installation flange 23212, the annular plate 23211, and the lower cover 2322 enclose the reaction cavity 2320. The top end of the installation flange 23212 encloses the opening of the reaction cavity 2320 to communicate with the through hole of the first box body 21.

[0177] To prevent water leakage from the electrode housing 232, as Figure 15 and Figure 16 shown, the electrode housing 232 further includes a third sealing member 2323. The third sealing member 2323 is sleeved on the circumferential edge of the electrode 233. The third sealing member 2323 is respectively in contact with the upper cover 2321 and the lower cover 2322, thereby sealing the assembly gap of the electrode housing 232 and preventing water leakage from the electrode housing 232.

[0178] Specifically, as Figure 16As shown, the third seal 2323 includes a seal top plate 23232, a seal bottom plate 23231, and a seal side plate 23233. Both the seal top plate 23232 and the seal bottom plate 23231 are annular plates 23211. The seal side plate 23233 is disposed circumferentially around the seal top plate 23232 and is respectively connected to the seal top plate 23232 and the seal bottom plate 23231. The seal side plate 23233, the seal top plate 23232, and the seal bottom plate 23231 enclose a limiting groove. The circumferential edge of the electrode 233 is inserted into the limiting groove. The seal top plate 23232 abuts against the upper cover 2321, and the seal bottom plate 23231 abuts against the lower cover 2322 to achieve sealing.

[0179] In this embodiment, the top end of the seal side plate 23233 extends out of the seal top plate 23232. The bottom end of the mounting flange 23212 abuts against the seal top plate 23232. The top end of the seal side plate 23233 is located inside the mounting flange 23212 and abuts against the mounting flange 23212, which can further improve the sealing effect.

[0180] In this embodiment, the electrode 233 includes a positive electrode plate and a negative electrode plate. To prevent the positive electrode plate or the negative electrode plate from warping and affecting the electrolysis effect, as Figure 17 shown, the upper cover 2321 further includes a pressing rib 23214. The pressing rib 23214 is disposed in the reaction chamber 2320 and is used to abut against the front surface of the electrode 233 to press the electrode 233 against the lower cover 2322, thereby preventing the middle of the electrode 233 from warping. Specifically, the pressing rib 23214 is disposed in the central hole.

[0181] There are three pressing ribs 23214. One ends of the three pressing ribs 23214 are connected to one point, and the other ends are connected to the inner wall of the reaction chamber 2320 to improve the anti-warping effect on the electrode 233.

[0182] The hydrogen-rich component 23 further includes an outer cover 234. The outer cover 234 can cover the hydrogen-rich shell 231 to improve the appearance of the hydrogen-rich component 23.

[0183] To facilitate the fixation of the outer cover 234, as Figure 18 shown, the outer cover 234 and the first box body 21 are adsorbed and fixed to improve the fixing effect between the hydrogen-rich component 23 and the first box body 21. Specifically, the adsorbing member 213 in the first box body 21 is called the first magnetic attracting member. The first magnetic attracting member is disposed in the cup holder 212. The adsorbing member 213 of the hydrogen-rich component 23 is called the second magnetic attracting member. The second magnetic attracting member can be disposed inside the outer cover 234. Among them, the adsorbing member 213 in both the outer cover 234 and the first box body 21 can be a magnet, or in the hydrogen-rich component 23 and the first box body 21, the adsorbing member 213 of one is a magnet and the adsorbing member 213 of the other is an iron block.

[0184] Optionally, first magnetic members are provided on opposite sides inside the outer cover, and the magnetic properties of the first magnetic members on both sides are opposite, so that the outer cover can only be installed at a certain angle, which can achieve an anti-misassembly effect.

[0185] As Figure 1 and Figure 19 shown, the first water purification tank 20 further includes a connector 22. The connector 22 is connected to the first box body 21, and a flow channel communicating with the inside of the first box body 21 is provided inside the connector 22. An inlet 222 and an exhaust port 221 communicating with the flow channel are provided on the connector 22. The inlet 222 is used to introduce water into the first box body 21, and the exhaust port 221 is used to discharge the gas in the first box body 21 to ensure that water can smoothly enter the first box body 21.

[0186] Optionally, the height of the exhaust port 221 is higher than that of the inlet 222 for smooth exhaust.

[0187] To further ensure the smoothness of the exhaust of the first water purification tank 20, as Figure 19 and Figure 20 shown, the flow channel inside the connector 22 extends along the height direction of the cup body 211. A vertically extending partition 223 is provided at the top of the flow channel to divide the top of the flow channel into two branches. The bottom end of the partition 223 is located below the inlet 222, and a vent hole 2231 is provided at the top end of the partition 223. This setting can enable the water and gas in the flow channel to flow separately, avoiding mutual interference, so that pure water can smoothly enter the first water purification tank 20 and the gas can smoothly be discharged from the first water purification tank 20.

[0188] In this embodiment, the inlet 222 and the exhaust port 221 are located on the same side of the partition 223. In other embodiments, the inlet 222 and the exhaust port 221 can also be located on both sides of the partition 223 respectively.

[0189] The water purification device further 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 users. The first water passing port 2111 on the first water purification tank 20 communicates with the second water purification tank 40, the water outlet 2112 communicates with the normal temperature water inlet and the inlet of the heater, the outlet of the heater communicates with the hot water inlet, and the heater is used to heat water to supply hot water to users. When the second water purification tank 40 is installed in the box 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 supply water to the first water purification tank 20 to ensure the water supply volume. When the second water purification tank 40 is removed from the machine housing 10, the first water purification tank 20 supplies water to the water outlet structure 30 and the heater to ensure that the water purification device can continue to be used.

[0190] When hot water needs to be provided to the user, generally, normal-temperature pure water is passed into the heater to prepare hot water at the temperature required by the user through the heater. When the temperature of the hot water required by the user is relatively low, it can be quickly provided to the user through heating by the heater. However, when the temperature of the hot water required by the user is relatively high, for example, above 85°C, it takes a long time to heat normal-temperature water through the heater, which affects the user experience.

[0191] To solve the above problems, as Figure 2 shown, the water purification device further includes a heat-preservation cup 60. The outlet of the heater is connected to the heat-preservation cup 60, and the outlet of the heat-preservation cup 60 is connected to the inlet of the heater. By setting the heat-preservation cup 60, a part of warm water can be pre-stored. That is, after heating normal-temperature water to a certain temperature (such as 40°C - 60°C) through the heater, the warm water is stored in the heat-preservation cup 60. When the user needs high-temperature hot water, the warm water in the heat-preservation cup 60 is passed into the heater for further heating to reduce the waiting time of the user.

[0192] The water purification device further includes a sterilization mechanism. The sterilization mechanism 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.

[0193] In this embodiment, as Figure 21 shown, the sterilization mechanism includes a second lamp assembly 91 and a lamp socket assembly 92. An installation hole is provided at the bottom of the second water purification tank. At least the light-emitting end of the second lamp assembly 91 is hermetically arranged in the installation hole, and a conductive contact pin 913 is arranged on the bottom surface of the second lamp assembly 91; the lamp socket assembly 92 is arranged on the tank seat 70 for connecting the power supply. The lamp socket assembly 92 includes a lamp socket 921 and a conductive female seat 922 arranged on the lamp socket 921. The conductive female seat 922 is connected to the power supply, and the conductive female seat 922 can contact the conductive contact pin 913 to supply power to the second lamp assembly 91. By supplying power to the second lamp assembly 91 through the contact between the lamp socket assembly 92 and the second lamp assembly 91 by the conductive contact pin 913 and the conductive female seat 922, no conductive structure needs to be arranged inside the second water purification tank, which is beneficial to simplifying the sealing structure of the second water purification tank 40 and improving the use safety.

[0194] The second lamp assembly 91 includes a circuit protection shell 911, a circuit board 912, and a sterilization lamp 914. 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; the circuit board 912 is arranged inside the circuit protection shell 911. The sterilization 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 sterilization lamp 914 extends into the installation hole through the lamp hole, and the conductive contact pin 913 passes through the contact pin hole to extend outside the circuit protection shell 911.

[0195] To prevent the water in the second water purification tank from contacting the second lamp assembly 91 through the installation hole, a sealing ring is provided between the bottom surface of the second water purification tank and the circuit protection case 911 to seal the assembly gap.

[0196] 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 disposed on the bottom surface of the circuit protection case 911, and the detection sensor is disposed on the lamp holder 921. When the second water purification tank is installed in the tank base 70, the detection trigger can trigger the detection sensor, so as to judge whether the second water purification tank is installed in the tank base 70. When the second water purification tank is not installed in the tank base 70, the main body of the water purification device issues a prompt message to remind the user to install the second water purification tank.

[0197] Optionally, the detection trigger can be a detection probe, and the detection sensor is a detection female seat, and the detection female seat is connected in series in the detection circuit. When the detection probe contacts the detection female seat, the detection circuit is connected; when the detection probe is separated from the detection female seat, the detection circuit is disconnected. Whether the second water purification tank is installed in the tank base 70 can be detected by the on-off state of the detection circuit.

[0198] In some embodiments, the detection sensor can be a proximity switch or a micro switch. When the second water purification tank is installed in the tank base 70, the detection trigger is within the detection range of the proximity switch or presses the reed of the micro switch, so that the detection signal of the proximity switch or the micro switch changes, thereby judging whether the second water purification tank is installed in the tank base 70.

[0199] In some embodiments, as Figure 22 shown, the sterilization mechanism includes a lamp cover 93 and a second lamp assembly 91. The bottom surface of the second water purification tank is provided with an installation hole, and the lamp cover 93 is hermetically disposed in the installation hole; the second lamp assembly 91 is fixedly disposed on the tank base 70 and is connected to the power supply. When the second water purification tank is installed on the tank base 70, the light emitting end of the second lamp assembly 91 extends into the lamp cover 93.

[0200] Optionally, the lamp cover includes a cover body 931, a lamp cover 932 and a lamp cover seal 933. The cover body 931 is disposed in the second water purification tank and partially located in the installation hole; the lamp cover seal 933 is disposed between the installation hole and the cover body 931 for sealing the gap therebetween; the lamp cover 932 is sleeved outside the cover body 931 and is detachably connected to the second water purification tank. The lamp cover 932 is used to press the cover body 931 against the second water purification tank and squeeze the lamp cover seal 933 to improve the sealing effect. Among them, the lamp cover 932 is threadedly connected to the installation hole.

[0201] As Figure 23 and Figure 24As shown, the water purification device further includes a box base 70 and a connection valve 80. The box base 70 is arranged inside the machine housing 10, the first water purification tank 20 and the raw water tank are arranged outside the machine housing 10, the second water purification tank 40 is detachably arranged inside the box base 70, the third water purification tank 50 is arranged inside the machine housing 10 and on one side of the box base 70, and the filtration assembly is arranged inside the machine housing 10 and below the box base 70.

[0202] An avoidance hole is provided at the bottom of the box base 70, and the second water purification tank 40 is detachably arranged inside the box base 70 to facilitate the removal of the second water purification tank 40 for cleaning. The connection valve 80 includes a first valve port, a second valve port, and a third valve port. The first valve port communicates with the water outlet 2112 on the first water purification tank 20, and the third valve port communicates with the third water purification tank 50. The second water purification tank 40 includes a water tank inlet, and the water tank inlet can communicate with the second valve port through the avoidance hole. By providing the connection valve 80, the connection of the first water purification tank 20, the second water purification tank 40, and the third water purification tank 50 can be realized, which is beneficial to simplifying the structure.

[0203] As Figure 25 shown, the connection valve 80 includes a valve body 81 and a valve core assembly. 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. The valve core assembly can open the second valve port when the second water purification tank is installed in the box base 70 to make the second valve port communicate with the second water purification tank, and can close the second valve port when the second water purification tank is removed from the box base 70 to prevent pure water from overflowing from the second valve port.

[0204] 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 arranged inside the second valve port, and one end of the valve body valve core 82 extending into the second valve port is the first sealing end. The valve body elastic member 84 is elastically connected to 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 sealing end seals the second valve port. When the second water purification tank is installed on the box base 70, as Figure 25 shown, the second water purification tank abuts against the valve body valve core 82, causing the valve body valve core 82 to move into the valve body 81 against the elastic force of the valve body elastic member 84, thereby opening the second valve port with the first sealing end. When the second water purification tank is removed from the box base 70, as Figure 26 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, causing the first sealing end to gradually approach the second valve port, thereby sealing the second valve port and preventing pure water from overflowing.

[0205] Optionally, the valve body elastic member 84 can be a spring. Further, a first sealing member 83 can be sleeved on the first sealing end. The first sealing member 83 has elasticity to better seal the second valve port.

[0206] The valve body 81 includes a three-way pipe 812 and a valve seat 811. Two pipe orifices of the three-way pipe 812 respectively form a first valve orifice and a third valve orifice, and a valve seat 811 is installed at the other pipe orifice, and the valve seat 811 forms a second valve orifice. A sealing ring is arranged between the valve seat 811 and the three-way pipe 812 to achieve sealing.

[0207] To enable the second valve orifice to communicate with the inside of the second clean water tank, the second clean water tank 40 includes a second box body 41 and a water tank valve core assembly 43. The second box body 41 is detachably connected to the box seat 70, and a water tank inlet is arranged at the bottom surface of the second box 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 one end of the water tank valve core 431 facing the inside of the second box body 41 is a second blocking end; the water tank elastic member 432 is elastically connected to the water tank valve core 431 and the second box 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 box body 41 so that the second blocking end blocks the water tank inlet. When the second clean water tank is installed on the box 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 orifice; 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 box body 41 to open the water tank inlet, so as to connect the connecting valve 80 with the second clean water tank. When the second clean water tank is removed from the box seat 70, the water tank valve core 431 moves outward of the second box body 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.

[0208] Optionally, the water tank elastic member 432 can be a spring. Further, a second sealing member 433 can be sleeved on the second blocking end, and the second sealing member 433 has elasticity to better block the water tank inlet.

[0209] 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. The water tank valve core 431 is located in the limiting sleeve 411, and a limiting groove is arranged on the connecting valve 80. The limiting sleeve 411 can be inserted into the limiting groove and abut against the bottom surface of the limiting groove. Through the cooperation of the limiting sleeve 411 and the limiting groove, it is convenient to position the second clean water tank and the connecting valve 80, thus simplifying the assembly.

[0210] Optionally, a fifth sealing member is arranged between the limiting groove and the limiting sleeve 411 to improve the sealing effect at the joint of the second clean water tank and the connecting valve 80.

[0211] To make the second water purification tank more stable when placed in the tank base 70, the tank base 70 is provided with an annular flange 71 protruding inward around the avoidance hole. The bottom of the second box body 41 is provided with a support portion 412, and the support portion 412 abuts against the inner bottom surface of the tank base 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 together to make the position of the second box body 41 more stable. The limit sleeve 411 is inserted into the annular flange 71, which can facilitate the positioning of the second water purification tank and the tank base 70.

[0212] To avoid damage to the annular flange 71 caused by the gravity of the second water purification tank concentrating on the annular flange 71, the height of the limit sleeve 411 is less 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.

[0213] To facilitate the disassembly of the second water purification tank, a handle is rotatably provided on the lid 42 of the second water purification tank. The handle can be rotated to a position perpendicular to the lid 42, or rotated and stacked on the top surface of the lid 42 for storage. The second water purification tank is taken and placed by lifting the handle, and the operation is convenient.

[0214] There is one handle, which is located in the middle of the lid 42. To avoid the handle protruding from the lid 42 and occupying a large space when stored, an avoidance groove is provided on the top surface of the lid 42. When the handle is stacked on the lid 42, the handle is completely arranged in the avoidance groove.

[0215] In some embodiments, there can be two handles, and the two handles are rotatably provided on the opposite sides of the lid 42.

[0216] To facilitate the disassembly and assembly of the lid 42 and the second box body 41, lock catches are rotatably connected to the opposite sides of the lid 42, and a locking portion that is engaged with the lock catches is provided at the top end of the second box body 41. The lid 42 and the second box body 41 can be fixed by the engagement of the lock catches and the locking portion.

[0217] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A water purification device, characterized in that, Comprising: A body; A first water purification tank (20), the first water purification tank (20) comprising a water inlet (222), a first water passing port (2111), and a water outlet (2112), the water inlet (222) being higher than the first water passing port (2111), and the water outlet (2112) being lower than the first water passing port (2111); A second water purification tank (40), detachably arranged on the body, the second water purification tank (40) comprising a second water passing port; A third water purification tank (50) for detecting the water levels of the second water purification tank (40) and the third water purification tank (50), the third water purification tank (50) comprising a third water passing port, the third water passing port being at the same height as the second water passing port, the capacity of the third water purification tank (50) being smaller than the capacity of the second water purification tank (40), and the first water passing port (2111) being capable of communicating with the second water passing port and the third water passing port in sequence, so that the second water purification tank (40) and the third water purification tank (50) are communicated and have the same water level; The water in the first water purification tank (20) can flow from the first water passing port (2111) to the second water passing port and the third water passing port in sequence; the water in the second water purification tank (40) and the third water purification tank (50) can flow to the first water passing port (2111) through the second water passing port and the third water passing port respectively at the same time.

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

3. The water purification device according to claim 1, characterized in that, The first water purification tank (20) comprises: A first box body (21), the water inlet (222), the first water passing port (2111), and the water outlet (2112) are all arranged on the first box body (21); A first lamp assembly, arranged on the first box body (21), the light emitting surface of the first lamp assembly facing the inside of the first box body (21), and the first lamp assembly being used for illuminating the water.

4. The water purification device according to claim 3, characterized in that, The first lamp assembly comprises a lighting lamp and / or a germicidal lamp.

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

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

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

8. The water purification device according to claim 7, characterized in that, The hydrogen-rich component (23) comprises: A hydrogen-rich outer shell, a reaction chamber (2320) being formed at the top of the hydrogen-rich outer shell, and the reaction chamber (2320) communicating with the first box body (21); An electrode (233), arranged in the reaction chamber (2320), and the electrode (233) being used for ionizing the water in the reaction chamber (2320).

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

10. The water purification device according to claim 9, characterized in that, One of the hydrogen-rich outer shell and the first box body (21) is provided with a mounting flange (23212), and the other is provided with a mounting groove (2121). The mounting flange (23212) can extend into the mounting groove (2121) and be snap-connected to the mounting groove (2121).

11. The water purification device according to claim 10, characterized in that, A groove (2122) is provided on the side wall of the mounting groove (2121). The groove (2122) includes a screwing-in section (21221) and a snap-connecting section (21222) connected to each other. The screwing-in section (21221) extends along the axial direction of the mounting groove (2121) and penetrates the bottom end face of the first box body (21). The snap-connecting section (21222) extends along the circumferential direction of the mounting groove (2121). A protrusion (23213) is provided on the mounting flange (23212). The protrusion (23213) can be screwed into the snap-connecting section (21222) from the screwing-in section (21221) and be snap-connected to the snap-connecting section (21222).

12. The water purification device according to claim 10, characterized in that, The hydrogen-rich component (23) further includes an outer cover (234). The outer cover (234) covers the outside of the hydrogen-rich outer shell, and the outer cover (234) is adsorbed and fixed to the first box body (21).

13. The water purification device according to claim 12, characterized in that, A first magnetic component is provided inside the outer cover (234), and a second magnetic component is provided on the first water purification tank (20). The first magnetic component can be adsorbed and fixed to the second magnetic component.

14. The water purification device according to claim 13, characterized in that, The first magnetic components are provided on both opposite sides inside the outer cover (234), and the magnetic properties of the first magnetic components on both sides are opposite.

15. The water purification device according to claim 8, characterized in that, The hydrogen-rich component (23) further includes a male terminal (235) and a female terminal (236). The female terminal (236) is provided at the bottom of the first box body (21), and the female terminal (236) is used for connecting to a power source. The male terminal (235) is provided inside the hydrogen-rich outer shell. 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 outer shell to be docked with the female terminal (236).

16. The water purification device according to claim 15, wherein, An installation cavity is formed inside the hydrogen-rich outer shell. The electrode (233) includes a lead-out end. The lead-out end extends out of the reaction cavity (2320) and is located inside the installation cavity. The male terminal (235) is provided inside the installation cavity and is electrically connected to the lead-out end.

17. The water purification device according to claim 16, wherein, The male terminal (235) includes: A main body (2351) slidably arranged in the vertical direction inside the installation cavity; A sliding part (2352) connected to the main body (2351). A sliding hole (2312) is provided on the hydrogen-rich outer shell. The sliding part (2352) passes through the sliding hole (2312) and can slide along the sliding hole (2312). A coupling part (2353) connected to the main body (2351). The coupling part (2353) can be received inside the installation cavity or extend out of the installation cavity. The coupling part (2353) is used for docking with the female terminal (236).

18. The water purification device according to claim 17, wherein, A chute (2313) is provided in the installation cavity. The sliding hole (2312) communicates with the chute (2313), and the main body (2351) is slidably arranged in the chute (2313).

19. The water purification device according to claim 17, wherein, A guiding groove (2311) is provided on the outer wall of the hydrogen-rich outer shell. The sliding hole (2312) is arranged in the guiding groove (2311), and the sliding part (2352) is slidably arranged in the guiding groove (2311).

20. The water purification device according to claim 8, wherein, The hydrogen-rich outer shell is provided with a pressing rib (23214) in the reaction cavity (2320), and the pressing rib (23214) is used to press the electrode (233) in the reaction cavity (2320).

21. The water purification device according to claim 8, wherein, The hydrogen-rich outer shell includes a hydrogen-rich shell (231) and an electrode shell (232). The top of the hydrogen-rich shell (231) is provided with an open mouth, and the electrode shell (232) is covered at the open mouth. The electrode shell (232) forms the reaction cavity (2320), and the electrode (233) is arranged in the reaction cavity (2320).

22. The water purification device according to claim 21, wherein, The electrode shell (232) includes a detachable upper cover (2321) and a lower cover (2322). The upper cover (2321) is provided with a central hole and an installation flange (23212) arranged circumferentially around the central hole. The electrode (233) is clamped and fixed between the upper cover (2321) and the lower cover (2322) and is aligned with the central hole.

23. The water purification device according to claim 22, wherein, The electrode shell (232) further includes a third seal (2323). The third seal (2323) is sleeved on the circumferential edge of the electrode (233), and the third seal (2323) is respectively in contact with the upper cover (2321) and the lower cover (2322).

24. The water purification device according to claim 22, wherein, The first box body (21) includes: A cup body (211). The bottom surface of the cup body (211) is provided with a through hole, and a positioning sleeve (2113) is arranged circumferentially around the through hole on the bottom surface of the cup body (211). A cup base (212) is connected to the bottom of the cup body (211). The cup base (212) is annular and arranged around the through hole, and the installation flange (23212) is located in the positioning sleeve (2113). A fourth seal (214). The fourth seal (214) includes a top seal part, a side seal part and a bottom seal part connected in sequence. The top seal part can be pressed by the installation flange (23212) against the bottom surface of the cup body (211). The side seal part can be clamped between the installation flange (23212) and the positioning sleeve (2113), and the bottom seal part can be clamped between the positioning sleeve (2113) and the cup base (212).

25. The water purification device according to any one of claims 1-24, wherein, The machine body includes: A machine shell (10). The first water purification tank (20) is arranged on the front side of the machine shell (10). A box base (70) is arranged in the machine shell (10). The second water purification tank (40) and the third water purification tank (50) are both arranged on the box base (70).

26. The water purification device according to claim 25, wherein, The front side side wall of the casing (10) is recessed to form a receiving groove, and the first water purification tank (20) is arranged in the receiving groove.

27. The water purification device according to claim 25, wherein, The top of the front side side wall of the casing (10) is provided with an operation panel, and the operation panel is located above the first water purification tank (20).

28. The water purification device according to claim 25, wherein, The water purification device further includes a connection valve (80). The connection valve (80) includes a first valve port, a second valve port and a third valve port. The first valve port communicates with the first water passing port (2111), the second valve port communicates with the second water passing port, and the third valve port communicates with the third water passing port.

29. The water purification device according to claim 28, wherein, The connection valve (80) includes a valve body (81) and a valve core assembly. 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. The valve core assembly can open the second valve port when the second water purification tank (40) is installed in the tank seat (70) so that the second valve port communicates with the second water purification tank (40), and can close the second valve port when the second water purification tank (40) is removed from the tank seat (70).

30. The water purification device according to claim 29, wherein,The valve core assembly includes: A valve body valve core (82), which is slidably arranged in the second valve port. One end of the valve body valve core (82) extending into the second valve port is a first blocking end; A valve body elastic member (84), which 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 out of the valve body (81) so that the first blocking end blocks the second valve port.

31. The water purification device according to claim 30, wherein, The valve core assembly further includes a first sealing member (83), and the first sealing member (83) is sleeved on the first blocking end.

32. The water purification device according to claim 30, wherein, The second water purification tank (40) includes: A second box body (41), which is detachably connected to the tank seat (70). The second water passing port is arranged on the bottom surface of the second box body (41); A tank valve core (431), which is slidably arranged in the second water passing port. One end of the tank valve core (431) facing the inside of the second box body (41) is a second blocking end; A tank elastic member (432), which elastically connects the tank valve core (431) and the second box body (41). The elastic force of the tank elastic member (432) can drive the tank valve core (431) to slide out of the second box body (41) so that the second blocking end blocks the second water passing port.

33. The water purification device according to claim 32, wherein, A second sealing member (433) is sleeved on the second blocking end.

34. The water purification device according to claim 32, wherein, A limiting sleeve (411) protrudes around the second water passing port on the bottom surface of the second box body (41). The tank valve core (431) is located in the limiting sleeve (411). A limiting groove is arranged on the connection valve (80), and the limiting sleeve (411) can be inserted into the limiting groove and abuts against the bottom surface of the limiting groove.

35. The water purification device according to claim 34, wherein, The bottom of the base (70) is provided with an avoidance hole, the second water passing port can communicate with the second valve port through the avoidance hole, the base (70) is convexly provided with an annular flange (71) around the avoidance hole towards the inside of the base (70), the bottom of the second box body (41) is convexly provided with a support portion (412), the support portion (412) abuts against the inner bottom surface of the base (70), the annular flange (71) abuts against the bottom surface of the second box body (41), and the height of the limit sleeve (411) is less than the height of the support portion (412) protruding from the second box body (41).

36. The water purification device according to claim 32, wherein, The second clean water tank (40) further includes a box cover (42), a buckle is rotatably arranged on one of the second box body (41) and the box cover (42), and a locking portion which is in snap-fit with the buckle is arranged on the other one.

37. The water purification device according to claim 36, wherein, A handle is rotatably arranged on the box cover (42), and the handle can be perpendicular to the box cover (42) or stacked on the top surface of the box cover (42).

38. The water purification device according to claim 37, wherein, An avoidance groove is arranged on the top surface of the box cover (42), the handle is rotatably arranged in the avoidance groove, and when the handle is stacked on the top surface of the box cover (42), the handle is completely located in the avoidance groove.

39. The water purification device according to claim 25, wherein, The water purification device further includes a sterilization mechanism which can sterilize the purified water inside the second clean water tank (40) when the second clean water tank (40) is installed on the base (70).

40. The water purification device according to claim 39, wherein, The sterilization mechanism includes: A second lamp assembly (91), an installation hole is arranged at the bottom of the second clean water tank (40), at least the light emitting end of the second lamp assembly (91) is hermetically arranged in the installation hole, and a conductive contact pin (913) is arranged on the bottom surface of the second lamp assembly (91); A lamp holder assembly (92) is arranged on the base (70) for connecting a power supply, a conductive female seat (922) is arranged on the lamp holder assembly (92), and the conductive female seat (922) can contact with the conductive contact pin (913) to supply power to the second lamp assembly (91).

41. The water purification device according to claim 40, wherein, The second lamp assembly (91) includes: A circuit protection shell (911), a lamp hole is arranged on the top surface of the circuit protection shell (911), and a contact pin hole is arranged on the bottom surface of the circuit protection shell (911); A circuit board (912) is arranged in the circuit protection shell (911), the conductive contact pin (913) is arranged on the circuit board (912) and passes through the contact pin hole; A sterilization lamp (914) is arranged on the circuit board (912), and the sterilization lamp (914) sequentially passes through the lamp hole and the installation hole.

42. The water purification device according to claim 40, wherein, The water purification device further includes: A detection trigger member is arranged on the bottom surface of the second lamp assembly (91); A detection induction member is arranged on the lamp holder assembly (92), and the detection trigger member can trigger the detection induction member when the second clean water tank (40) is installed on the base (70).

43. The water purification device according to claim 39, wherein, The sterilization mechanism includes: A lamp cover, an installation hole is arranged on the bottom surface of the second clean water tank (40), and the lamp cover is hermetically arranged in the installation hole; The second lamp assembly (91) is fixedly arranged on the box base (70) and connected to a power supply. When the second water purification tank (40) is installed on the box base (70), the light-emitting end of the second lamp assembly (91) extends into the lamp cover.

44. The water purification device according to claim 43, wherein, The lamp cover includes: A cover body (931) arranged inside the second water purification tank (40) and partially located inside the mounting hole; A lamp cover seal (933) arranged between the mounting hole and the cover body (931); A lamp cover (932) sleeved outside the cover body (931) and detachably connected to the second water purification tank (40). The lamp cover (932) is used to press the cover body (931) against the second water purification tank (40).

45. The water purification device according to any one of claims 1-24, wherein, The third water purification tank (50) includes: A detection box (51) with a ventilation port arranged at the top of the detection box (51); A water level float (54) arranged inside the detection box (51) to rise and fall with the change of the water level inside the detection box (51); A water level sensing assembly arranged on the detection box (51), and the water level sensing assembly can be triggered by the water level float (54).

46. The water purification device according to claim 45, wherein, An exhaust port (221) is arranged at the top of the first water purification tank (20), and the exhaust port (221) is communicated with the detection box (51).

47. The water purification device according to claim 46, wherein, The exhaust port (221) is higher than the preset maximum water level of the third water purification tank (50).

48. The water purification device according to claim 46, wherein, The first water purification tank (20) includes a first box body (21) and a connector (22). The connector (22) is connected to the first box body (21). A flow channel communicating with the inside of the first box body (21) is arranged inside the connector (22). The water inlet (222) and the exhaust port (221) are both arranged on the connector (22) and communicated with the flow channel. The exhaust port (221) is higher than the water inlet (222). The first water passing port (2111) and the water outlet (2112) are arranged on the first box body (21).

49. The water purification device according to claim 48, wherein, The flow channel extends along the height direction of the first box body (21). A vertically extending partition plate (223) is arranged at the top end of the flow channel to divide the top of the flow channel into two branches. The bottom end height of the partition plate (223) is lower than the height of the water inlet (222). A ventilation hole (2231) is arranged at the top end of the partition plate (223).

50. The water purification device according to claim 45, wherein, The third water purification tank (50) further includes an anti-overflow float (55) and an anti-overflow sensing member (53). The anti-overflow float (55) is slidably arranged vertically inside the detection box (51), and the anti-overflow float (55) can trigger the anti-overflow sensing member (53) when sliding to the overflow critical liquid level of the detection box (51).

51. The water purification device according to any one of claims 1-24, wherein, The water purification device further includes a heater and a water outlet structure (30). The water outlet structure (30) is connected to the water outlet (2112) and is used to provide liquid for users. The water outlet structure (30) includes a normal temperature water inlet and a hot water inlet. The water outlet (2112) is respectively communicated with the normal temperature water inlet and the inlet of the heater, and the outlet of the heater is communicated with the hot water inlet.

52. The water purification device according to claim 51, wherein, The water purification device further includes a vacuum flask (60). The outlet of the heater can communicate with the vacuum flask (60), and the outlet of the vacuum flask (60) can communicate with the inlet of the heater.

53. The water purification device according to any one of claims 1-24, wherein, The water purification device further includes: a filtration assembly disposed in the body. The filtration assembly is used for filtering water, and the water inlet (222) communicates with the filtration assembly.

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