Drinking water device and valve assembly

Abstract

The invention discloses drinking water equipment and a valve assembly, and relates to the technical field of drinking water equipment.The drinking water equipment comprises a water inlet structure, a cold tank, a hot tank, the valve assembly and a water outlet structure, and the cold tank and the hot tank are connected with the water inlet structure; the valve assembly comprises a first water inlet, a second water inlet, a third water inlet, a first water outlet and a second water outlet, the first water inlet is communicated with the water inlet structure, the second water inlet is communicated with the cold tank, the third water inlet is communicated with the hot tank, and the valve assembly comprises a first valve unit, a second valve unit and a third valve unit; the first valve unit is configured to control connection and disconnection between the first water inlet and the first water outlet; the second valve unit is configured to control connection and disconnection between the second water inlet and the first water outlet; the third valve unit is configured to control connection and disconnection between the third water inlet and the second water outlet. According to the drinking water equipment, cold water and normal-temperature water are output from the first water outlet, hot water is output from the second water outlet, and the water outlet temperature of the cold water, the normal-temperature water and the hot water can be kept.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drinking water equipment, and in particular to a drinking water equipment and a valve assembly. BACKGROUND

[0002] With the increasing demand of users for the quality of drinking water, drinking water equipment is widely used in various daily scenarios such as families, shopping malls, catering places, etc. In the related art, the drinking water equipment has functions such as heating and cooling, and the user can directly obtain hot water, cold water or normal temperature water from the drinking water equipment. However, when the user obtains cold water or normal temperature water immediately after obtaining hot water, the water temperature of the cold water or normal temperature water is prone to be high, resulting in poor user experience. SUMMARY

[0003] One object of the present application is to provide a drinking water equipment and a valve assembly, cold water and normal temperature water are output from a first water outlet, and hot water is output from a second water outlet, which is beneficial to maintain the water outlet temperature of cold water, normal temperature water and hot water.

[0004] According to the drinking water equipment provided by the embodiment of the present application, the cold water and normal temperature water are output from the first water outlet, and the hot water is output from the second water outlet, which is beneficial to maintain the water outlet temperature of cold water, normal temperature water and hot water.

[0005] According to the drinking water equipment provided by the embodiment of the present application, the cold water and normal temperature water are output from the first water outlet, and the hot water is output from the second water outlet, which is beneficial to maintain the water outlet temperature of cold water, normal temperature water and hot water.

[0006] In addition, the drinking water equipment according to the above-mentioned embodiments of the present application can also have the following additional technical features: In some embodiments, the valve assembly includes a mixing chamber, the first water outlet is communicated with the mixing chamber, the first valve unit is configured to control the on-off between the first water inlet and the mixing chamber, and the second valve unit is configured to control the on-off between the second water inlet and the mixing chamber.

[0007] In some embodiments, the valve assembly includes a valve body, and the first inlet, the second inlet, the third inlet, the first outlet, the second outlet, and the mixing chamber are disposed in the valve body.

[0008] In some embodiments, the valve body includes a first inlet chamber, a second inlet chamber, a first connecting port, and a second connecting port. The first inlet port is connected to the first inlet chamber, the second inlet port is connected to the second inlet chamber, and the first connecting port and the second connecting port are connected to the mixing chamber. The first valve unit is configured to control the opening and closing of the first connecting port, and when the first connecting port is open, it is connected to the first inlet chamber. The second valve unit is configured to control the opening and closing of the second connecting port, and when the second connecting port is open, it is connected to the second inlet chamber.

[0009] In some embodiments, the valve assembly includes a valve body, the valve body including a third inlet chamber and a third connecting port, the third inlet port connecting to the third inlet chamber, the second outlet connecting to the third connecting port, and the third valve unit configured to control the opening and closing of the third connecting port, wherein the third connecting port connects to the third inlet chamber when open.

[0010] In some embodiments, the water outlet structure includes a first pipe section, a second pipe section, and a third pipe section. One end of the first pipe section is connected to the first water outlet, one end of the second pipe section is connected to the second water outlet, one end of the third pipe section is connected to the other end of the first pipe section and the other end of the second pipe section, and the other end of the third pipe section is used for water outlet.

[0011] In some embodiments, the water inlet structure includes: a purified water tank, the purified water tank having a water storage cavity for storing water, and the outlet of the purified water tank being connected to the inlet of the cold tank, the inlet of the hot tank, and the valve assembly.

[0012] In some embodiments, the water inlet structure includes a first one-way valve connected in series between the outlet of the purified water tank and the inlet of the hot water tank, the first one-way valve being configured to allow fluid to flow unidirectionally from the purified water tank to the hot water tank.

[0013] In some embodiments, the water inlet structure includes a first damping plug, one end of which is connected to the first vent of the hot water tank, and the other end of which is connected to the upper space inside the purified water tank.

[0014] In some embodiments, the water inlet structure includes a second damping plug, one end of which is connected to the second vent of the cold tank, and the other end of which is connected to the upper space inside the purified water tank.

[0015] In some embodiments, the aperture size of the first damping plug is no greater than 1 mm.

[0016] In some embodiments, the aperture size of the second damping plug is no greater than 1 mm.

[0017] In some embodiments, the water inlet structure includes: a water pump, the inlet of which is connected to the outlet of the purified water tank, and the outlet of which is connected to the inlet of the cold tank, the inlet of the hot tank, and the valve assembly.

[0018] In some embodiments, the water tank is equipped with a first water level monitoring unit and a second water level monitoring unit, which are redundant to each other, and there is a difference between the water level monitored by the first water level monitoring unit and the water level monitored by the second water level monitoring unit.

[0019] In some embodiments, the water level monitored by the first water level monitoring unit is higher than the water level monitored by the second water level monitoring unit; the first water level monitoring unit is a water level probe, and the second water level monitoring unit is an electronic float.

[0020] In some embodiments, the inlet of the cold tank communicates with the upper part of the internal space of the cold tank.

[0021] In some embodiments, the inlet of the hot tank communicates with the lower part of the interior space of the hot tank.

[0022] In some embodiments, the hot tank is provided with a first baffle opposite to the inlet of the hot tank.

[0023] In some embodiments, the cold tank is provided with a second baffle opposite to the inlet of the cold tank.

[0024] In some embodiments, the outlet of the cold tank is located on the bottom wall of the cold tank.

[0025] In some embodiments, the top wall of the cold tank is provided with a mating hole and a water outlet pipe, the water outlet pipe passes through the mating hole, one end of the water outlet pipe extends to the bottom of the internal space of the cold tank, and the other end of the cold tank water outlet pipe is used for water discharge.

[0026] In some embodiments, the drinking water device includes a cold water supply mode, a hot water supply mode, and a room temperature water supply mode, wherein in the hot water supply mode, the first valve unit is closed, the second valve unit is closed, and the third valve unit is open; in the cold water supply mode, the first valve unit is closed, the second valve unit is open, and the third valve unit is closed; and in the room temperature water supply mode, the first valve unit is open, the second valve unit is open, and the third valve unit is closed.

[0027] According to an embodiment of the present invention, the valve assembly includes: a valve body, a first valve unit, a second valve unit, and a third valve unit. The valve body includes a first inlet, a second inlet, a third inlet, a first outlet, and a second outlet. The first valve unit is configured to control the on / off connection between the first inlet and the first outlet. The second valve unit is configured to control the on / off connection between the second inlet and the first outlet. The third valve unit is configured to control the on / off connection between the third inlet and the second outlet.

[0028] In some embodiments, the valve assembly includes a mixing chamber, the first outlet communicates with the mixing chamber, the first valve unit is configured to control the on / off connection between the first inlet and the mixing chamber, and the second valve unit is configured to control the on / off connection between the second inlet and the mixing chamber. Attached Figure Description

[0029] Figure 1 This is a first partial structural schematic diagram of the drinking water device according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of a second partial structure of the drinking water device according to an embodiment of the present invention.

[0031] Figure 3 This is a first structural schematic diagram of the valve assembly of the drinking water device according to an embodiment of the present invention.

[0032] Figure 4 This is a second structural schematic diagram of the valve assembly of the drinking water device according to an embodiment of the present invention.

[0033] Figure 5 This is a third structural schematic diagram of the valve assembly of the drinking water device according to an embodiment of the present invention.

[0034] Figure 6 This is a schematic diagram of the flow path of the drinking water device according to an embodiment of the present invention.

[0035] Figure 7 This is a schematic diagram of the water purification tank of the drinking water device according to an embodiment of the present invention.

[0036] Figure 8 This is a schematic diagram of the third partial structure of the drinking water device according to an embodiment of the present invention.

[0037] Figure 9 yes Figure 8 A magnified view of a portion of region A in the middle circle.

[0038] Figure 10 This is a partial cross-sectional schematic diagram of the drinking water device according to an embodiment of the present invention.

[0039] Figure 11This is a schematic diagram of the raw water tank of the drinking water device according to an embodiment of the present invention.

[0040] Figure 12 This is a schematic diagram of the structure of the cold tank of the drinking water equipment according to an embodiment of the present invention.

[0041] Figure 13 This is a schematic diagram of the structure of the heating tank of the drinking water device according to an embodiment of the present invention.

[0042] Figure 14 This is an exploded schematic diagram of a drinking water device according to an embodiment of the present invention.

[0043] Figure 15 This is a schematic diagram of the third part of the structure of the drinking water device according to an embodiment of the present invention, wherein the drinking water device is in hot water supply mode.

[0044] Figure 16 This is a schematic diagram of the fourth partial structure of the drinking water device according to an embodiment of the present invention, wherein the drinking water device is in the mode of supplying cold water.

[0045] Figure 17 This is a fifth partial structural schematic diagram of the drinking water device according to an embodiment of the present invention, wherein the drinking water device is in the mode of supplying room temperature water.

[0046] Reference numerals: Drinking water equipment 100, purified water tank 11, first water level monitoring unit 111, second water level monitoring unit 112, first one-way valve 12, first damping plug 13, second damping plug 14, water pump 15, raw water tank 16, float 161, settling tank 162, side panel 163, settling platform 164, booster pump 17, control valve 18, composite filter element 19, cold tank 20, cold tank inlet 21, cold tank outlet 22, second baffle 24, mating hole 25, water outlet pipe 26, hot tank 30, hot tank inlet 31, hot tank outlet 32, first baffle 34, valve assembly 40 Valve body 41, first inlet 411, second inlet 412, third inlet 413, first outlet 414, second outlet 415, mixing chamber 416, first valve unit 42, second valve unit 43, third valve unit 44, first inlet chamber 461, second inlet chamber 462, third inlet chamber 463, first connecting port 464, second connecting port 465, third connecting port 466, water outlet structure 50, first pipe section 51, second pipe section 52, third pipe section 53, water outlet 54, mounting base 61, raw water interface 611, water level monitoring component 62. Detailed Implementation

[0047] To achieve miniaturization and integration of drinking water equipment, related technologies often involve components such as heating tanks and compression units (used to compress coolant for cooling within cold tanks). These components generate heat during operation and radiate it to room-temperature water, resulting in a higher water temperature than normal. To mitigate this impact, these technologies provide ample space for different components, which hinders the miniaturization of the drinking water equipment and contradicts the current trend of increasingly smaller kitchen spaces.

[0048] Therefore, the present invention provides a drinking water device 100 that overcomes the aforementioned technical defects. This drinking water device 100 can be a water dispenser, water purifier, or water purifier-water dispenser, etc. It is particularly suitable for devices with cooling or heating modules.

[0049] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0050] Combination Figures 1 to 17 According to an embodiment of the present invention, a drinking water device 100 includes: a water inlet structure, a cold tank 20, a hot tank 30, a valve assembly 40, and a water outlet structure 50. The water inlet structure is used to supply room temperature water to the cold tank 20 and the hot tank 30. The cold tank 20 is used to cool the water source to generate cold water, and the hot tank 30 is used to heat the water source to generate hot water. The valve assembly 40 is used to control whether cold water, hot water, or room temperature water is output from the water outlet structure 50. The water outlet structure 50 is used to output cold water, hot water, or room temperature water.

[0051] For example, the inlet 21 of the cold tank 20 is connected to the water inlet structure, allowing room temperature water to be supplied from the inlet 21 to the cold tank 20 for cooling; the inlet 31 of the hot tank 30 is connected to the water inlet structure, allowing room temperature water to be supplied from the inlet 31 to the hot tank 30 for heating. The valve assembly 40 includes a first inlet 411, a second inlet 412, a third inlet 413, a first outlet 414, and a second outlet 415. The first inlet 411 is connected to the water inlet structure, allowing the water inlet structure to supply room temperature water to the first inlet 411; the second inlet 412 is connected to the outlet 22 of the cold tank 20, allowing cold water to be supplied from the outlet 22 to the second inlet 412; and the third inlet 413 is connected to the outlet 32 ​​of the hot tank 30, allowing hot water to be supplied from the outlet 32 ​​to the third inlet 413.

[0052] The water outlet structure 50 connects the first water outlet 414 and the second water outlet 415. The valve assembly 40 includes a first valve unit 42, a second valve unit 43, and a third valve unit 44. The first valve unit 42 is configured to control the connection between the first water inlet 411 and the first water outlet 414. When the first valve unit 42 connects the first water inlet 411 and the first water outlet 414, the first water outlet 414 can output room temperature water. When the first valve unit 42 disconnects the connection between the first water inlet 411 and the first water outlet 414, the first water outlet 414 cannot output room temperature water. The second valve unit 43 is configured to control the connection between the second water inlet 412 and the first water outlet 414. When the second valve unit 43 connects the second inlet 412 and the first outlet 414, the first outlet 414 can output cold water; when the second valve unit 43 disconnects the connection between the second inlet 412 and the first outlet 414, the first outlet 414 cannot output cold water. The third valve unit 44 is configured to control the connection between the third inlet 413 and the second outlet 415. When the third valve unit 44 connects the third inlet 413 and the second outlet 415, the second outlet 415 can output hot water; when the third valve unit 44 disconnects the connection between the third inlet 413 and the second outlet 415, the second outlet 415 cannot output hot water.

[0053] In addition, cold water and room temperature water are output through the first outlet 414, while hot water is output through the second outlet 415. Hot water and cold / room temperature water can be output from different outlets, reducing the probability of contact between them. This helps to minimize the possibility of hot water mixing with cold or room temperature water, avoiding situations where the water temperature is too high when cold or room temperature water is drawn, or too low when hot water is drawn. Even if the user immediately draws cold or room temperature water after drawing hot water, the temperature of the hot water has little impact on the temperature of the cold or room temperature water, allowing the cold or room temperature water to maintain a lower output temperature, ensuring the user receives water at a suitable temperature. Alternatively, if the user immediately draws cold or room temperature water and then immediately draws hot water, the temperature of the cold and room temperature water has little impact on the temperature of the hot water, allowing the hot water to maintain a higher output temperature, ensuring the user receives the desired hot water temperature, thus improving the user's water dispensing experience.

[0054] According to the water dispenser 100 of the present invention, cold water and room temperature water are output through the first water outlet 414, and hot water is output through the second water outlet 415. This helps to reduce the possibility of hot water mixing with cold water or room temperature water, and ensures the outlet temperature of cold water, room temperature water and hot water, thereby improving the user experience.

[0055] In addition, it can reduce or avoid the heat generated by the components during operation from affecting the output of room temperature water of the water dispenser 100. Thus, while meeting the output temperature of room temperature water, it is possible to integrate all components into a smaller space, effectively improving space utilization and facilitating the miniaturization of the water dispenser.

[0056] When a user draws in room temperature water, the first valve unit 42 and the second valve unit 43 can be opened simultaneously, while the third valve unit 44 is closed. This allows the first valve unit 42 to connect the first inlet 411 and the first outlet 414, and the second valve unit 43 to connect the second inlet 412 and the first outlet 414. Room temperature water and cold water can be mixed and then output from the first outlet 414, which helps to lower the temperature of the room temperature water.

[0057] Alternatively, when the user draws room temperature water, the first valve unit 42 and the third valve unit 44 can be opened simultaneously, while the second valve unit 43 is closed. The first valve unit 42 can be connected to the first inlet 411 and the first outlet 414, and the third valve unit 44 can be connected to the third inlet 413 and the second outlet 415. The first outlet 414 can output room temperature water, and the second outlet 415 can output hot water. The room temperature water and hot water can be mixed before output, which helps to increase the temperature of the room temperature water.

[0058] Alternatively, when a user draws room temperature water, the first valve unit 42 opens, while the second valve unit 43 and the third valve unit 44 close. The first valve unit 42 connects the first inlet 411 and the first outlet 414, and room temperature water is directly output from the first outlet 414. Users can draw room temperature water of different temperatures according to their needs, which improves the user's water drawing experience and meets different user needs.

[0059] In conjunction with the foregoing, the drinking water device 100 of this embodiment of the invention is described in terms of the fact that when a user draws room temperature water, the first valve unit 42 and the second valve unit 43 can be opened simultaneously, while the third valve unit 44 is closed. However, this is not a limitation on the scope of protection of this embodiment of the invention.

[0060] Optionally, the water inlet structure may also include a raw water tank 16 and a composite filter element 19. The raw water tank 16 is used to store unfiltered raw water, and the composite filter element 19 is used to filter the raw water to generate purified water, which helps to reduce impurities and particulate matter in the raw water. The raw water in the raw water tank 16 can be transported to the composite filter element 19 for filtration. The filtered raw water can generate purified water, which can be temporarily stored in a water storage structure (such as the purified water tank 11 described below). The purified water in the water storage structure can be transported to the heating tank 30 for heating to generate hot water; the purified water can also be transported to the cooling tank 20 for cooling to generate cold water, so as to provide users with drinking water at the required temperature.

[0061] Combination Figures 1 to 4In some embodiments, the valve assembly 40 includes a mixing chamber 416, a first outlet 414 connecting to the mixing chamber 416, a first valve unit 42 configured to control the connection between the first inlet 411 and the mixing chamber 416, and a second valve unit 43 configured to control the connection between the second inlet 412 and the mixing chamber 416. When a user draws cold water, the first valve unit 42 disconnects the connection between the first inlet 411 and the mixing chamber 416, and the second valve unit 43 connects the second inlet 412 and the mixing chamber 416. Cold water can flow into the mixing chamber 416 from the second inlet 412 and is then output from the first outlet 414.

[0062] In light of the foregoing, the components such as the heating tank 30 generate heat during operation and radiate this heat to the room-temperature water, resulting in a higher than normal water temperature. In the drinking water device 100 of this embodiment, when a user draws room-temperature water, the first valve unit 42 connects the first inlet 411 and the mixing chamber 416, and the second valve unit 43 connects the second inlet 412 and the mixing chamber 416. Room-temperature water and cold water can flow into the mixing chamber 416 simultaneously and mix, which helps to lower the temperature of the room-temperature water and prevents the output temperature from being too high, thereby optimizing the user experience.

[0063] Combination Figures 1 to 5 In some embodiments, the valve assembly 40 includes a valve body 41, a first inlet 411, a second inlet 412, a third inlet 413, a first outlet 414, a second outlet 415, and a mixing chamber 416 disposed on the valve body 41, which helps to reduce the number of connecting pipes and reduce the production cost of the drinking water equipment 100.

[0064] The valve body 41 can also shorten the connection length between the first inlet 411 and the mixing chamber 416, the second inlet 412 and the mixing chamber 416, the mixing chamber 416 and the first outlet 414, and the third inlet 413 and the second outlet 415. This allows the first valve unit 42 to control the opening and closing of the first inlet 411 and the mixing chamber 416, the second valve unit 43 to control the opening and closing of the second inlet 412 and the mixing chamber 416, and the third valve unit 44 to control the opening and closing of the third inlet 413 and the second outlet 415. Simultaneously, the first valve unit 42, the second valve unit 43, and the third valve unit 44 can be stably mounted on the valve body 41. These valve units can be bolted to the valve body 41, preventing them from detaching and improving the integration of the valve assembly 40.

[0065] Combination Figures 1 to 4In some embodiments, the valve body 41 includes a first inlet chamber 461, a second inlet chamber 462, a first connecting port 464, and a second connecting port 465. The first inlet port 411 connects to the first inlet chamber 461, the second inlet port 412 connects to the second inlet chamber 462, and the first connecting port 464 and the second connecting port 465 connect to the mixing chamber 416. The first valve unit 42 is configured to control the opening and closing of the first connecting port 464. When the first connecting port 464 is open, it connects to the first inlet chamber 461, so that the first valve unit 42 can control whether room temperature water flows into the mixing chamber 416 through the first connecting port 464. The second valve unit 43 is configured to control the opening and closing of the second connecting port 465. When the second connecting port 465 is open, it connects to the second inlet chamber 462, so that the second valve unit 43 can control whether cold water flows into the mixing chamber 416 through the second connecting port 465, ensuring that the water outlet structure 50 outputs drinking water at the temperature required by the user.

[0066] For example, when a user draws cold water, the first valve unit 42 controls the first connecting port 464 to close, so the first connecting port 464 is not connected to the first water inlet chamber 461, and room temperature water cannot flow into the mixing chamber 416; the second valve unit 43 controls the second connecting port 465 to open, and the cold water supplied by the cold tank 20 flows into the second water inlet chamber 462 from the second water inlet 412. After flowing through the second water inlet chamber 462 and the second connecting port 465, the cold water can flow into the mixing chamber 416, and after flowing through the mixing chamber 416, the cold water can be output from the first water outlet 414.

[0067] When a user draws room temperature water, the first valve unit 42 controls the first connecting port 464 to open, and the room temperature water supplied by the water inlet structure flows into the first water inlet chamber 461 from the first water inlet 411. After flowing through the first water inlet chamber 461 and the first connecting port 464, the room temperature water can flow into the mixing chamber 416. The second valve unit 43 controls the second connecting port 465 to open, and the cold water supplied by the cold tank 20 flows into the second water inlet chamber 462 from the second water inlet 412. After flowing through the second water inlet chamber 462 and the second connecting port 465, the cold water can flow into the mixing chamber 416. The room temperature water and the cold water can mix in the mixing chamber 416, which helps to lower the temperature of the room temperature water and avoid the outlet temperature of the room temperature water being too high, thus optimizing the user's water drawing experience.

[0068] When a user draws hot water, the first valve unit 42 can control the first connecting port 464 to close, preventing room temperature water from flowing into the mixing chamber 416 through the first connecting port 464; the second valve unit 43 can control the second connecting port 465 to close, preventing cold water from flowing into the mixing chamber 416 through the second connecting port 465; the first outlet 414 does not output cold water or room temperature water, preventing cold water and room temperature water from mixing with hot water and avoiding the temperature of cold water and room temperature water from affecting the outlet temperature of hot water.

[0069] Combination Figure 1 , Figure 2and Figure 5 In some embodiments, the valve assembly 40 includes a valve body 41, which includes a third inlet chamber 463 and a third connecting port 466. The third inlet port 413 connects to the third inlet chamber 463, and the second outlet port 415 connects to the third connecting port 466. The third valve unit 44 is configured to control the opening and closing of the third connecting port 466. When the third connecting port 466 is open, it connects to the third inlet chamber 463. When a user draws hot water, the third valve unit 44 controls the third connecting port 466 to open, allowing hot water supplied by the hot water tank 30 to flow from the third inlet port 413 into the third inlet chamber 463. After flowing through the third inlet chamber 463 and the third connecting port 466, the hot water can be output from the second outlet port 415. When a user draws cold or room temperature water, the third valve unit 44 can control the third connection port 466 to close, preventing hot water from being delivered to the second outlet 415 through the third connection port 466. At this time, hot water is not output, which helps to prevent hot and cold water from mixing with room temperature water and avoids the temperature of hot water from affecting the outlet temperature of room temperature water and cold water.

[0070] Combination Figure 1 and Figure 2 In some embodiments, the water outlet structure 50 includes a first pipe section 51, a second pipe section 52, and a third pipe section 53. One end of the first pipe section 51 is connected to a first water outlet 414, one end of the second pipe section 52 is connected to a second water outlet 415, and one end of the third pipe section 53 is connected to the other end of the first pipe section 51 and the other end of the second pipe section 52. The other end of the third pipe section 53 is used for water outlet, and the other end of the third pipe section 53 is the water outlet 54 of the drinking water device 100 of the present invention, so that the user can collect drinking water at the required temperature at the water outlet 54.

[0071] For example, compared to having two outlets for water dispensing, the water dispensing structure 50 of this embodiment uses the other end of the third pipe section 53 for water dispensing, which helps to reduce the number of connecting pipes and lower the production cost of the drinking water equipment 100. When the user receives cold water and room temperature water, the cold water and room temperature water flow into the first pipe section 51 through the first outlet 414, and after flowing through the first pipe section 51 and the third pipe section 53, the cold water and room temperature water are output from the water outlet 54; when the user receives hot water, the hot water flows into the second pipe section 52 through the second outlet 415, and after flowing through the second pipe section 52 and the third pipe section 53, the hot water is output from the water outlet 54.

[0072] At least a portion of the first pipe segment 51 runs along the front-back direction (e.g.) Figure 1 The second pipe segment 52 extends in the front-back direction, at least a portion of the third pipe segment 53 extends in the vertical direction (e.g., in the longitudinal direction), and at least a portion of the third pipe segment 53 extends in the vertical direction (e.g., in the longitudinal direction). Figure 1The pipe extends vertically (in the middle) to prevent cold water, room temperature water, or hot water from remaining in the third pipe section 53. For example, when a user draws hot water, the hot water flows through the second pipe section 52 and the third pipe section 53 before being output from the outlet 54. When the user stops drawing hot water, the remaining hot water in the third pipe section 53 is discharged under the action of gravity, while the hot water that is not discharged in time remains in the second pipe section 52. If the user immediately draws cold water and room temperature water, the cold water and room temperature water can flow through the first pipe section 51 and the third pipe section 53 before being output from the outlet 54. This avoids the mixing of hot and cold water with room temperature water, which would result in a higher water temperature. This helps to reduce the probability of hot, cold, and room temperature water mixing, ensures the water temperature of hot, cold, and room temperature water, and further improves the user's water drawing experience.

[0073] Combination Figures 1 to 7 In some embodiments, the water inlet structure includes: a purified water tank 11, which has a water storage chamber for storing water. The outlet of the purified water tank 11 is connected to the inlet 21 of the cold tank 20, the inlet 31 of the hot tank 30, and the valve assembly 40, so that the purified water tank 11 can supply water to the cold tank 20 and the hot tank 30 and generate cold water and hot water. The water in the purified water tank 11 is room temperature water, which can be directly delivered to the valve assembly 40. The output of room temperature water, cold water and hot water is controlled by the valve assembly 40 to ensure that the drinking water equipment 100 can output drinking water at the temperature required by the user.

[0074] For example, the top of the cold tank 20 is provided with a first water circuit board. The first water circuit board has a first interface, a second interface, and a third interface. The first interface is connected to the outlet of the purified water tank 11, the second interface is connected to the inlet 21 of the cold tank 20, and the third interface is connected to the first water inlet 411. The first interface can be connected to the second interface and the third interface through the pipe on the first water circuit board. That is, water in the purified water tank 11 flows into the first water circuit board from the first interface and into the cold tank 20 through the second interface, so that the purified water tank 11 can supply water to the cold tank 20. The cold tank 20 cools the water to generate cold water. The cold water can flow into the second water inlet 412 through the outlet 22 of the cold tank 20, so that the second valve unit 43 can control whether the cold water is output from the first outlet 414. Water in the purified water tank 11 can also flow into the first water inlet 411 through the third interface, so that the first valve unit 42 can control whether the water in the purified water tank 11 is output from the first outlet 414.

[0075] Optionally, the first water circuit board may also be provided with a fourth interface and a fifth interface. The fourth interface is connected to the outlet 22 of the cold tank 20, and the fifth interface is connected to the second water inlet 412. The fourth and fifth interfaces are connected through pipes on the first water circuit board so that cold water can flow directly into the second water inlet 412 after being discharged from the outlet 22 of the cold tank 20. By setting up the first water circuit board, the connecting pipes are integrated on the first water circuit board, which helps to reduce the number of pipes in the drinking water equipment 100 and avoids the disconnection of connecting pipes between interfaces. In addition, by setting multiple interfaces on the first water circuit board to connect with the cold tank 20 and valve assembly 40, the connection between the first water circuit board and components such as the cold tank 20 and valve assembly 40 is simplified.

[0076] In addition, a second water passage plate is provided at the bottom of the hot water tank 30. The second water passage plate has a first port and a second port. The first port is connected to the outlet of the purified water tank 11, and the second port is connected to the inlet 31 of the hot water tank 30. The first port and the second port are connected, and water in the purified water tank 11 can flow from the first port into the second water passage plate and then into the hot water tank 30 through the second port, so that the purified water tank 11 can supply water to the hot water tank 30. The hot water tank 30 heats the water to generate hot water, and the hot water can flow into the third inlet 413 through the outlet 32 ​​of the hot water tank 30, so that the third valve unit 44 can control whether the hot water is output from the second outlet 415. The second water passage plate can be located at the bottom of the hot water tank 30. The second water passage plate can support the hot water tank 30 to ensure that the hot water tank 30 is stably installed in the drinking water equipment 100. At the same time, the second port of the second water passage plate is provided to connect with the hot water tank 30, which helps to reduce the difficulty of connecting the hot water tank 30 and the second water passage plate in the drinking water equipment 100.

[0077] In some embodiments, the water inlet structure includes a first one-way valve 12, which is connected in series between the outlet of the purified water tank 11 and the inlet 31 of the hot water tank 30. The first one-way valve 12 is configured to allow fluid to flow unidirectionally from the purified water tank 11 to the hot water tank 30. Water in the purified water tank 11 flows out from its outlet, passes through the first one-way valve 12, and then flows into the hot water tank 30 for heating. This prevents hot water in the hot water tank 30 from flowing back into the purified water tank 11 when the water level in the purified water tank 11 is low, thereby preventing thermal convection between the hot water and room temperature water from causing the water temperature in the purified water tank 11 to rise. This ensures that the temperature of the room temperature water in the purified water tank 11 does not rise abnormally, thus improving the user's water dispensing experience.

[0078] Combination Figure 6 In some embodiments, the water inlet structure includes a first damping plug 13, one end of which is connected to the first vent of the hot tank 30, and the other end of which is connected to the upper space inside the water purification tank 11, so as to discharge the air inside the hot tank 30, prevent the air pressure inside the hot tank 30 from being too high, and reduce the possibility of hot water entering the water purification tank 11.

[0079] The water inlet structure may further include a conveying component (such as the water pump 15 described below) and a first vent pipe. The conveying component is used to convey water from the purified water tank 11 to the hot water tank 30. The first vent pipe connects the first vent port and the upper space inside the purified water tank 11. The first damping plug 13 may be disposed inside the first vent pipe. When the hot water in the hot water tank 30 is conveyed to the third inlet 413, the conveying component can convey water from the purified water tank 11 to the hot water tank 30. Since the water in the purified water tank 11 is continuously input into the hot water tank 30, the hot water originally located in the hot water tank 30 is discharged from the outlet 32 ​​of the hot water tank 30 and conveyed to the third inlet 413. Since the first vent port is located at the top of the hot water tank 30, and the outlet 32 ​​of the hot water tank 30 is also located at the top of the hot water tank 30, or the first vent port is the outlet 32 ​​of the hot water tank 30, when the hot water is discharged from the outlet 32 ​​of the hot water tank 30, some of the hot water may be forced into the first vent pipe.

[0080] By setting the first damping plug 13 to obstruct the flow of hot water, it is possible to prevent the conveying component from forcing too much hot water into the first vent pipe when the hot water tank 30 is discharging water, thereby reducing the backflow of hot water from the first vent pipe into the clean water tank 11 and solving the problem of temperature cross-contamination caused by too much hot water entering the clean water tank 11. At the same time, the first damping plug 13 can be provided with small holes, through which air in the hot water tank 30 can flow into the clean water tank 11, which can ensure effective venting of the hot water tank 30 and prevent excessive air pressure in the hot water tank 30.

[0081] Combination Figure 6 In some embodiments, the water inlet structure includes a second damping plug 14, one end of which is connected to the second vent of the cold tank 20, and the other end of which is connected to the upper space inside the clean water tank 11, so as to discharge the air inside the cold tank 20, prevent the air pressure inside the cold tank 20 from being too high, and reduce the possibility of cold water entering the clean water tank 11.

[0082] The water inlet structure may further include a conveying component (e.g., the water pump 15 described below) and a second vent pipe. The conveying component is used to convey water from the clean water tank 11 to the cold tank 20. The second vent pipe connects the second vent port and the upper space inside the clean water tank 11. The second damping plug 14 may be disposed inside the second vent pipe. When the cold water in the cold tank 20 is conveyed to the second inlet 412, the conveying component can convey water from the clean water tank 11 to the cold tank 20. Since the water in the clean water tank 11 is continuously input into the cold tank 20, the cold water originally located in the cold tank 20 is discharged from the outlet 22 of the cold tank 20 and conveyed to the second inlet 412. Since the cold tank 20 is provided with an outlet pipe 26 (e.g., the outlet pipe 26 described below), the outlet pipe 26 extends out of the cold tank 20 for water discharge. The second vent port may be disposed on the pipe wall of the outlet pipe 26. When the cold water is discharged from one end of the outlet pipe 26, a portion of the cold water may be forced into the second vent pipe.

[0083] By setting a second damping plug 14 to obstruct the flow of cold water, it is possible to prevent the delivery component from forcing too much cold water into the second vent pipe when the cold tank 20 is discharging water, thereby reducing the backflow of cold water from the second vent pipe into the clean water tank 11 and solving the problem of temperature cross-contamination caused by too much cold water entering the clean water tank 11. At the same time, the second damping plug 14 can be provided with small holes, through which air in the cold tank 20 can flow into the clean water tank 11, which can ensure effective venting of the cold tank 20 and prevent excessive air pressure in the cold tank 20.

[0084] In some embodiments, the aperture size of the first damping plug 13 is no greater than 1 mm. The aperture size of the first damping plug 13 can be set to 0.1 mm, 0.2 mm, 0.4 mm, 0.55 mm, 0.6 mm, 0.73 mm, 0.8 mm, 0.9 mm, 1 mm, etc., so that the air in the hot tank 30 can flow back to the clean water tank 11 through the small hole, ensuring effective venting of the hot tank 30, preventing excessive air pressure in the hot tank 30, and ensuring that the hot tank 30 can continuously take in water and heat the water.

[0085] In some embodiments, the aperture size of the second damping plug 14 is no greater than 1 mm. The aperture size of the second damping plug 14 can be set to 0.1 mm, 0.2 mm, 0.4 mm, 0.55 mm, 0.6 mm, 0.73 mm, 0.8 mm, 0.9 mm, 1 mm, etc., so that the air in the cold tank 20 can flow back to the clean water tank 11 through the small hole, ensuring effective venting of the cold tank 20, preventing excessive air pressure in the cold tank 20, and ensuring that the cold tank 20 can continuously take in water and cool the water.

[0086] Combination Figures 1 to 7 In some embodiments, the water inlet structure includes a water pump 15, the inlet of which is connected to the outlet of the purified water tank 11, and the outlet of which is connected to the inlet 21 of the cold tank 20, the inlet 31 of the hot tank 30, and the valve assembly 40, so that the water pump 15 can deliver water from the purified water tank 11 to the cold tank 20, the hot tank 30, and the valve assembly 40, and drive the cold water in the cold tank 20 and the hot water in the hot tank 30 to flow to the valve assembly 40.

[0087] For example, the outlet of the water purification tank 11 is located at the bottom of the water purification tank 11, and the water pump 15 can be located below the water purification tank 11 to shorten the connection length between the outlet of the water purification tank 11 and the inlet of the water pump 15. When a user collects room temperature water, the first valve unit 42 can connect the first inlet 411 and the mixing chamber 416, and the second valve unit 43 can connect the second inlet 412 and the mixing chamber 416. The water pump 15 can send the room temperature water pump 15 in the purified water tank 11 to the first inlet 411, and the room temperature water flows into the mixing chamber 416 through the first inlet 411. The water pump 15 can also send the room temperature water pump 15 into the cold tank 20 to drive the cold water originally located in the cold tank 20 to be discharged from the outlet 22 of the cold tank 20. Under the action of the water pump 15, the cold water can be delivered to the second inlet 412, and the cold water flows into the mixing chamber 416 through the second inlet 412. After the cold water and room temperature water are mixed in the mixing chamber 416, they can be output from the first outlet 414, so that the user can collect room temperature water with a lower temperature, avoid the room temperature water being too high, and improve the user's water collection experience.

[0088] When the user draws cold water, the second valve unit 43 connects the second inlet 412 and the mixing chamber 416. The water pump 15 can pump room temperature water into the cold tank 20 to drive the cold water originally located in the cold tank 20 to be discharged from the outlet 22 of the cold tank 20. Under the action of the water pump 15, the cold water can be delivered to the second inlet 412. The cold water flows into the mixing chamber 416 through the second inlet 412. Since the first outlet 414 is connected to the mixing chamber 416, the cold water can be directly output from the first outlet 414.

[0089] When a user draws hot water, the third valve unit 44 connects the third inlet 413 and the second outlet 415. The water pump 15 can pump room temperature water into the hot water tank 30 to drive the hot water originally located in the hot water tank 30 to be discharged from the outlet 32 ​​of the hot water tank 30. Under the action of the water pump 15, the hot water can be transported to the third inlet 413. The hot water is transported to the second outlet 415 through the third inlet 413. The hot water can be directly output from the second outlet 415.

[0090] Combination Figure 7 In some embodiments, the water purification tank 11 is provided with a first water level monitoring unit 111 and a second water level monitoring unit 112. The first water level monitoring unit 111 and the second water level monitoring unit 112 are redundant to each other, and there is a difference in the water level monitored by the first water level monitoring unit 111 and the water level monitored by the second water level monitoring unit 112. Under the joint monitoring of the first water level monitoring unit 111 and the second water level monitoring unit 112, the overflow caused by the water level in the water purification tank 11 is effectively prevented from being too high. In addition, when one of the first water level monitoring unit 111 or the second water level monitoring unit 112 is damaged or malfunctions, the other can continuously monitor the water level of the water purification tank 11 to further prevent the water in the water purification tank 11 from overflowing.

[0091] The redundancy of the first water level monitoring unit 111 and the second water level monitoring unit 112 means that the first water level monitoring unit 111 and the second water level monitoring unit 112 serve as backup monitoring units for each other. When one fails, the other can still continue to monitor the water level in the water purification tank 11, ensuring that the drinking water equipment 100 can monitor the water level in the water purification tank 11 at all times and prevent the water in the water purification tank 11 from overflowing.

[0092] Combination Figure 7 In some embodiments, the water level monitored by the first water level monitoring unit 111 is higher than that monitored by the second water level monitoring unit 112, which is beneficial for quickly determining whether the second water level monitoring unit 112 is faulty, so as to facilitate the rapid maintenance of the drinking water equipment 100. The first water level monitoring unit 111 is a water level probe, and the second water level monitoring unit 112 is an electronic float. Compared with monitoring the water level of the water tank by a single water level monitoring unit, the drinking water equipment 100 of this embodiment monitors the water level of the water tank 11 simultaneously by the first water level monitoring unit 111 and the second water level monitoring unit 112. When one of the first water level monitoring unit 111 or the second water level monitoring unit 112 is damaged or malfunctions, the other can continuously monitor the water level of the water tank 11, further preventing water overflow in the water tank 11.

[0093] The water level monitored by the first water level monitoring unit 111 is higher than that monitored by the second water level monitoring unit 112. When the first water level monitoring unit 111 detects that the water level in the purified water tank 11 has reached the monitoring level, but the second water level monitoring unit 112 does not detect that the water level in the purified water tank 11 has reached the monitoring level, it can be quickly determined that the second water level monitoring unit 112 has failed. This helps maintenance personnel to quickly identify faulty parts and reduces the time required to repair the drinking water equipment 100.

[0094] When the water in the water purification tank 11 contains few ions and the water temperature is low, the water level probe may not be able to detect the water level in the water purification tank 11. In this case, an electronic float can be used to monitor the water level in the water purification tank 11. Alternatively, when the drinking water equipment 100 has not been used for a long time, a biofilm may form on the surface of the electronic float, causing the electronic float to be unable to detect the water level in the water purification tank 11. In this case, a water level probe can be used to monitor the water level in the water purification tank 11 to further prevent the water purification tank 11 from overflowing. In addition, the water purification tank 11 is equipped with both a water level probe and an electronic float, and the water level probe is positioned higher than the electronic float. When the water level probe detects that the water purification tank 11 has reached a high water level, but the electronic float does not detect a water level signal, it can be quickly determined that the electronic float has failed. This helps maintenance personnel to quickly identify faulty components and reduces the time required to repair the drinking water equipment 100.

[0095] Water level probes are primarily used to monitor the liquid level of conductive liquids. When liquid touches the two electrodes of the probe, a conductive circuit is formed between them, thus monitoring the liquid level. Water level probes can monitor water level changes through direct contact, offering high accuracy and a fast response time, allowing for real-time monitoring of water level changes. This makes them suitable for scenarios requiring rapid response. Furthermore, water level probes have a simple structure, are easy to maintain, typically require no complex calibration, have low installation costs, and good durability.

[0096] An electronic float mainly consists of a float and a guide rod. The float is fitted onto the guide rod and contains a permanent magnet. The guide rod contains multiple reed switches. When the liquid level rises or falls, buoyancy pushes the float up and down along the guide rod. The magnet inside the float moves with it. When the float reaches the position of a reed switch inside the guide rod, the magnetic force magnetizes and attracts the reed inside, thus connecting the circuit. When the float, carrying the magnet, leaves that position, the magnetic force disappears, the reed returns to its original position due to its elasticity, and the circuit is disconnected. Electronic floats have a simple structure, strong anti-interference capabilities, and can adapt to various media. They are unaffected by factors such as the color, conductivity, and dielectric constant of the liquid, and have low installation and maintenance costs.

[0097] Combination Figures 8 to 11 In some examples, the water inlet structure also includes a booster pump 17, a composite filter element 19, and a control valve 18. The inlet of the composite filter element 19 is connected to the outlet of the booster pump 17; the inlet of the purified water tank 11 is connected to the outlet of the composite filter element 19. The control valve 18 is configured to allow fluid to flow from the booster pump 17 into the composite filter element 19 and to restrict fluid flow from the composite filter element 19 into the booster pump 17. By setting the control valve 18 to restrict fluid flow from the composite filter element 19 into the booster pump 17, backflow of water in the composite filter element 19 is prevented, and air cannot enter the composite filter element 19, thereby preventing water in the composite filter element 19 from being forced into the purified water tank 11 and reducing the possibility of overflow in the purified water tank 11.

[0098] For example, because the composite filter element 19 has low filtration resistance, when the booster pump 17 stops running, some of the water in the composite filter element 19 can slowly flow back to the booster pump 17 under the action of gravity. After flowing through the booster pump 17, the water flows back to the water supply component in the drinking water device 100 (such as the raw water tank 16 described below), allowing air to enter the composite filter element 19 and occupy a certain space at the top of the composite filter element 19. When the water purification system performs the next filtration, the booster pump 17 starts and runs. The air in the composite filter element 19 is difficult to expel. Under the action of the booster pump 17, the water in the water supply component is pumped into the composite filter element 19 for filtration, which compresses the air in the composite filter element 19. The filtered water is then transported and stored in the purified water tank 11. When the water tank 11 reaches the high water level, the booster pump 17 stops running, the compressed air in the composite filter element 19 gradually recovers, and the water in the composite filter element 19 is forced into the water tank 11, causing the water level in the water tank 11 to rise abnormally, and even overflow.

[0099] By setting a control valve 18 to restrict the flow of fluid from the composite filter element 19 to the booster pump 17, when the booster pump 17 stops running, the water in the composite filter element 19 cannot flow back into the booster pump 17. The water remains in the composite filter element 19, which stabilizes the internal pressure distribution of the composite filter element 19 and prevents air from entering the composite filter element 19. This avoids air entering the composite filter element 19 and pressurizing the water into the water purification tank 11, thereby reducing the possibility of overflow in the water purification tank 11. At the same time, it prevents air from entering the composite filter element 19 and occupying a certain amount of top space, ensuring that the composite filter element 19 can fill its interior with water when filtering water. This allows the composite filter element 19 to filter water fully, maximizing its filtration efficiency and optimizing its filtration performance.

[0100] Combination Figure 8 and Figure 9 In some examples, the control valve 18 is located between the outlet of the booster pump 17 and the composite filter element 19. When the booster pump 17 stops running, the control valve 18 effectively prevents the water in the composite filter element 19 from flowing back into the booster pump 17, avoids air from entering the interior of the composite filter element 19, thereby preventing the water in the composite filter element 19 from being forced into the water tank 11 and reducing the possibility of overflow in the water tank 11.

[0101] When the booster pump 17 is running, it drives the water in the water supply component (such as the raw water tank 16 described below) to be delivered to the composite filter element 19. The control valve 18 is configured to allow fluid to flow from the booster pump 17 into the composite filter element 19. After the water flows through the booster pump 17 and the control valve 18, it is input into the composite filter element 19 for filtration. The water filtered in the composite filter element 19 can be delivered to the clean water tank 11 and stored in the clean water tank 11.

[0102] When the booster pump 17 stops operating, it ceases supplying water from the water pump 15 within the water supply unit to the composite filter element 19. This stops the delivery of filtered water to the purified water tank 11, leaving some water temporarily stored within the composite filter element 19. Since the control valve 18 is configured to restrict fluid flow from the composite filter element 19 into the booster pump 17, the water in the composite filter element 19 cannot flow back into the booster pump 17. The internal pressure of the composite filter element 19 remains balanced, preventing air from entering the composite filter element 19 and thus preventing air from compressing the water within the composite filter element 19 and forcing it into the purified water tank 11. This reduces the likelihood of abnormally high water levels in the purified water tank 11.

[0103] In addition, the control valve 18 is located between the outlet of the booster pump 17 and the composite filter element 19. When the booster pump 17, the control valve 18, or the composite filter element 19 needs maintenance or replacement, one of the booster pump 17, the control valve 18, or the composite filter element 19 can be disassembled individually without disassembling the entire drinking water equipment 100. This facilitates the installation and disassembly of the booster pump 17, the control valve 18, or the composite filter element 19.

[0104] Optionally, the control valve 18 can be integrated into the composite filter element 19; or, the control valve 18 can be integrated into the booster pump 17, which helps to improve the integration of the drinking water equipment 100 and reduce the connection steps between the booster pump 17 and the composite filter element 19. The booster pump 17 can be directly connected to the composite filter element 19 without the need for an additional step of connecting the control valve 18, making the connection method simpler and simplifying the assembly process of the drinking water equipment 100.

[0105] In some examples, the composite filter element 19 is composed of at least two of the following: a filter screen, a carbon rod, and an ultrafiltration membrane. Specifically, the composite filter element 19 may consist of a filter screen and a carbon rod; or it may consist of a filter screen and an ultrafiltration membrane; or it may consist of a carbon rod and an ultrafiltration membrane; or it may consist of a filter screen, a carbon rod, and an ultrafiltration membrane, etc. This is beneficial for reducing the filtration resistance of the composite filter element 19, improving its filtration efficiency, and simultaneously reducing the vibration amplitude of the booster pump 17. The embodiments of this invention are mainly described with the composite filter element 19 consisting of a carbon rod and an ultrafiltration membrane, but this is not a limitation on the scope of protection of this invention.

[0106] For example, compared to reverse osmosis filtration, the composite filter element 19 of this embodiment is composed of a carbon rod and an ultrafiltration membrane, which makes the filter pore size of the composite filter element 19 larger. This can reduce the filtration resistance of the composite filter element 19, increase the water flow rate of the composite filter element 19, and improve the filtration efficiency of the composite filter element 19. At the same time, it can also reduce the resistance of the booster pump 17 to water, thereby reducing the vibration amplitude of the booster pump 17, which helps to reduce the noise of the booster pump 17 during operation, thereby improving the user experience.

[0107] CombinationFigure 10 and Figure 11 In some examples, the water inlet structure also includes a mounting base 61 and a water level monitoring component 62. The mounting base 61 has an inlet connected to the booster pump 17 and a raw water interface 611 for connecting to the raw water tank 16. The water level monitoring component 62 is configured to monitor the water level in the raw water tank 16 and is triggered when the water level in the raw water tank 16 is not higher than a preset minimum water level h. The ratio of the preset minimum water level h to the highest water level H in the raw water tank 16 satisfies 0 ≤ h / H ≤ 5%. Among them, h / H can be set to 0, 1%, 1.5%, 2%, 2.2%, 3%, 3.7%, 4%, 4.3%, 4.75%, 5%, etc., which is beneficial to improving the utilization rate of water in the raw water tank 16. At the same time, when the water level monitoring component 62 is triggered, the booster pump 17 can stop running, and the water in the raw water tank 16 stops being pumped into the composite filter element 19 for filtration, so as to promptly remind the user to replenish the raw water tank 16 and improve the user experience.

[0108] For example, the water level in the raw water tank 16 refers to the liquid level height relative to the inner bottom surface of the raw water tank 16. Compared to the drinking water device 100 using reverse osmosis filtration, which produces wastewater after filtration and which flows back into the raw water tank 16 and is temporarily stored at the bottom of the raw water tank 16, the drinking water device 100 of this embodiment uses a composite filter element 19 of ultrafiltration membrane and carbon rod. The composite filter element 19 does not produce wastewater flowing back into the raw water tank 16, thus the water in the raw water tank 16 can be utilized as much as possible. When 0≤h / H≤5%, the preset minimum water level h in the raw water tank 16 is relatively low, which is beneficial to improving the water utilization rate of the raw water tank 16, thereby maximizing the use of the water in the raw water tank 16, reducing the number of times the user needs to replenish the raw water tank 16, and improving the user experience.

[0109] When the water level in the raw water tank 16 is not higher than the preset minimum water level h, the water level monitoring device 62 is triggered, and the booster pump 17 can stop running. The water in the raw water tank 16 stops being pumped into the composite filter element 19 for filtration, preventing the booster pump 17 from doing unnecessary work. At the same time, the drinking water device 100 can also remind the user to replenish the water in the raw water tank 16 in time by emitting an alarm sound or flashing a signal light, which helps to improve the user experience. At the same time, it avoids the drinking water device 100 from failing to operate normally due to insufficient water in the raw water tank 16, effectively improving the stability and reliability of the drinking water device 100.

[0110] Optionally, the control valve 18 is located between the raw water interface 611 and the inlet of the booster pump 17, so that the control valve 18, the booster pump 17, or the raw water interface 611 can be disassembled separately; or, the control valve 18 can be integrated with the raw water interface 611, which is beneficial to improve the integration of the drinking water equipment 100 and reduce the connection steps of the booster pump 17 and the raw water interface 611. The booster pump 17 can be directly connected to the raw water interface 611 without the need for an additional step of connecting the control valve 18, making the connection method simpler and simplifying the assembly process of the drinking water equipment 100.

[0111] Combination Figure 10 and Figure 11 In some examples, the water level monitoring device 62 is a Hall element, and the raw water tank 16 is equipped with a magnetic float 161 corresponding to the Hall element, so as to monitor the water level in the raw water tank 16 by means of the Hall effect.

[0112] For example, float 161 can move vertically along with the water level in raw water tank 16, and float 161 can be distributed along the front-to-back direction with the Hall element. When float 161 is close to the Hall element, the magnetic field of float 161 acts on the Hall element, causing a potential difference to be formed inside the Hall element. The controller of drinking water equipment 100 can receive the signal from the Hall element to control the operation of booster pump 17, and the water in raw water tank 16 can be pumped into composite filter element 19 for filtration. When float 161 is far away from the Hall element, the magnetic field of float 161 cannot act on the Hall element, so that a potential difference cannot be formed inside the Hall element. The controller of drinking water equipment 100 cannot receive the signal from the Hall element, booster pump 17 stops running, and the water in raw water tank 16 cannot be pumped into composite filter element 19 for filtration.

[0113] Compared to other water level monitoring devices, such as water level probes and liquid level sensors, using a Hall element and a magnetic float 161 to monitor the water level in the raw water tank 16 allows the Hall element to operate without contacting the water in the tank, simply by sensing changes in the magnetic field of the float 161. This effectively extends the lifespan of the Hall element. Furthermore, the Hall element offers high reliability and is suitable for operation in harsh environments such as dust, oil, and humidity, unaffected by contamination. Additionally, the Hall effect is a physical effect with a short response time, facilitating timely control of the booster pump 17's start and stop.

[0114] Combination Figure 10 and Figure 11In some examples, the inner bottom surface of the raw water tank 16 is provided with a settling groove 162 corresponding to the float 161. The settling groove 162 is lower than the inner bottom surface of the raw water tank 16. When the raw water tank 16 is at its lowest water level, at least a portion of the float 161 is located within the settling groove 162. The settling groove 162 provides space for the float 161 to move downward, ensuring that the water in the raw water tank 16 is fully utilized. The bottom of the raw water tank 16 is provided with a side panel 163 and a settling platform 164. The side panel 163 and the settling platform 164 extend downward from the bottom wall of the raw water tank 16. 64 is located inside the side panel 163, and at least a portion of the settling trough 162 is located on the settling platform 164, so as to facilitate the positioning and installation of the raw water tank 16 on the mounting base 61, thereby improving the stability of the raw water tank 16 installed on the mounting base 61; at the same time, it is beneficial to make full use of the internal space of the settling platform 164, so that the settling trough 162 sinks relative to the inner bottom surface of the raw water tank 16, so that the float 161 can move to the bottom of the settling trough 162, thereby maximizing the use of the water in the raw water tank 16, reducing the number of times the user needs to add water, and effectively improving the user experience.

[0115] For example, the sidewall of the settling tank 162 can extend upwards and be higher than the inner bottom surface of the raw water tank 16, and a silicone sleeve is fitted on the top of the sidewall of the settling tank 162. The float 161 can float vertically within the settling tank 162, which helps to limit the floating position of the float 161 and prevent the float 161 from falling out of the settling tank 162. The Hall element and the float 161 are distributed in the front-back direction. When the raw water tank 16 is full of water, the float 161 is located at the top of the settling tank 162. The magnetic field of the float 161 acts on the Hall element, creating a potential difference inside the Hall element to control the operation of the booster pump 17. The water in the raw water tank 16 can be pumped into the composite filter element 19 for filtration. When the water level in the raw water tank 16 drops, the float 161 moves downwards with the drop in water level.

[0116] When the water level in the raw water tank 16 is very close to the inner bottom surface of the raw water tank 16, or when the water in the raw water tank 16 is completely pumped into the composite filter element 19, the float 161 moves to the bottom of the settling tank 162. The magnetic field of the float 161 cannot act on the Hall element, so that a potential difference cannot be formed inside the Hall element. The booster pump 17 stops running, and the water in the raw water tank 16 cannot be pumped into the composite filter element 19 for filtration. This helps to improve the water intake rate of the raw water tank 16, thereby maximizing the use of the water in the raw water tank 16, reducing the number of times the user needs to replenish water, and effectively improving the user experience.

[0117] In conjunction with the foregoing, the water inlet path of the purified water tank 11 of the drinking water device 100 in this embodiment of the invention is as follows: raw water tank 16 → raw water interface 611 → booster pump 17 → control valve 18 → composite filter element 19 → purified water tank 11.

[0118] Combination Figure 6 and Figure 12In some embodiments, the inlet 21 of the cold tank 20 connects to the upper part of the internal space of the cold tank 20. Since the density of water increases with temperature (greater than 4°C), the colder water is located in the lower part of the internal space of the cold tank 20. The water in the purified water tank 11 has a relatively higher temperature and is input into the cold tank 20 through the inlet 21. Therefore, the inlet 21 of the cold tank 20 connects to the upper part of the internal space of the cold tank 20 to prevent water from flowing out directly from the outlet 22 of the cold tank 20 without sufficient cooling. Water from the purified water tank 11 can be input from the inlet 21 of the cold tank 20 to the upper part of the internal space of the cold tank 20. After sufficient cooling, the water temperature decreases, and the colder water flows from the upper part to the lower part of the internal space of the cold tank 20, which is conducive to sufficient cooling of the water in the cold tank 20. The outlet 22 of the cold tank 20 can be located in the lower part of the cold tank 20. The water temperature in the lower part of the cold tank 20 is lower, which is conducive to outputting colder water to meet the user's water demand.

[0119] Combination Figure 6 and Figure 13 In some embodiments, the inlet 31 of the heating tank 30 connects to the lower part of the internal space of the heating tank 30. Since the water temperature in the upper part of the heating tank 30 is higher than that in the lower part, the water temperature in the purified water tank 11 is relatively lower and is input into the heating tank 30 through the inlet 31. Therefore, the inlet 31 of the heating tank 30 connects to the lower part of the internal space of the heating tank 30, preventing water from flowing directly out of the outlet 32 ​​of the heating tank 30 without sufficient heating. Water from the purified water tank 11 can be input from the inlet 31 of the heating tank 30 to the lower part of the internal space of the heating tank 30. After sufficient heating, the water temperature rises, and the higher-temperature water flows from the lower part to the upper part of the internal space of the heating tank 30, which is beneficial for sufficient heating within the heating tank 30. The outlet 32 ​​of the heating tank 30 can be located at the top of the heating tank 30. The higher water temperature in the upper part of the heating tank 30 facilitates the output of hot water at a higher temperature to meet the user's water demand.

[0120] Combination Figure 13 In some embodiments, the heating tank 30 is provided with a first baffle 34 opposite to the inlet 31 of the heating tank 30. This helps to extend the flow path of room temperature water within the heating tank 30, allowing the room temperature water to be fully heated within the heating tank 30. The first baffle 34 and the inlet 31 of the heating tank 30 can be vertically opposite each other. Water from the purified water tank 11 flows into the heating tank 30 from the inlet 31. When the room temperature water flows past the first baffle 34, the first baffle 34 acts as a barrier, preventing the room temperature water from flowing upwards. The room temperature water flows into the internal space of the heating tank 30 from both sides of the first baffle 34. This helps to extend the flow path of the room temperature water within the heating tank 30, allowing the room temperature water to be fully heated within the heating tank 30 and preventing insufficiently heated room temperature water from flowing directly out of the outlet 32 ​​of the heating tank 30, thus improving the user's water dispensing experience.

[0121] Combination Figure 12 In some embodiments, the cold tank 20 is provided with a second baffle 24 opposite to the inlet 21 of the cold tank 20. This helps to extend the flow path of room temperature water within the cold tank 20, allowing the room temperature water to be fully cooled within the cold tank 20. The second baffle 24 and the inlet 21 of the cold tank 20 can be vertically opposite each other. Water from the purified water tank 11 flows into the cold tank 20 from the inlet 21. When the room temperature water flows past the second baffle 24, the second baffle 24 acts as a barrier, preventing the room temperature water from flowing downwards. The room temperature water flows into the internal space of the cold tank 20 from both sides of the second baffle 24. This helps to extend the flow path of the room temperature water within the cold tank 20, allowing the room temperature water to be fully cooled within the cold tank 20 and preventing insufficiently cooled room temperature water from flowing directly out of the outlet 22 of the cold tank 20, thus improving the user's water dispensing experience.

[0122] Optionally, the second baffle 24 can be configured as a flow equalization plate with multiple small holes evenly distributed. When room temperature water flows through the flow equalization plate, part of the room temperature water can flow into the interior of the cold tank 20 through the multiple small holes, and another part of the room temperature water can flow into the interior of the cold tank 20 from both sides of the flow equalization plate, which helps to improve the uniformity of room temperature water flowing into the interior of the cold tank 20.

[0123] In some embodiments, the outlet 22 of the cold tank 20 is located on the bottom wall of the cold tank 20. When the water temperature is greater than 4°C, the lower the water temperature, the greater the density. The cold water with lower temperature is located at the bottom of the cold tank 20. The outlet 22 of the cold tank 20 is located on the bottom wall of the cold tank 20, which is conducive to the cold tank 20 outputting cold water with a lower temperature to meet the user's water intake needs, thereby improving the user's water intake experience.

[0124] Combination Figure 12 In other embodiments, the top wall of the cold tank 20 is provided with a mating hole 25 and a water outlet pipe 26. The water outlet pipe 26 passes through the mating hole 25, and one end of the water outlet pipe 26 extends to the bottom of the internal space of the cold tank 20. The other end of the water outlet pipe 26 of the cold tank 20 is used for water discharge, which reduces the heat exchange between the water outlet pipe 26 and the external environment, and ensures that the cold water in the water outlet pipe 26 is kept at a low temperature, so as to output cold water at a lower temperature and improve the user experience.

[0125] In this embodiment of the invention, the water outlet pipe 26 of the cold tank 20 is located at the bottom of the internal space of the cold tank 20. Since the water temperature at the bottom of the cold tank 20 is lower, a section of the water outlet pipe 26 is connected to the bottom of the internal space of the cold tank 20, which is beneficial for outputting cold water at a lower temperature. At the same time, at least a part of the water outlet pipe 26 is immersed in cold water, which can prevent the cold water in the water outlet pipe 26 from absorbing heat and rising in temperature, which is beneficial for ensuring that the water outlet pipe 26 outputs cold water at a lower temperature to meet the user's water needs.

[0126] In some embodiments, the drinking water device 100 includes a cold water supply mode, a hot water supply mode, and a room temperature water supply mode, so that the drinking water device 100 can supply drinking water at the temperature required by the user, which helps to improve the user's water access experience. In the hot water supply mode, the first valve unit 42 is closed, the second valve unit 43 is closed, and the third valve unit 44 is open. The first valve unit 42 disconnects the connection between the first inlet 411 and the mixing chamber 416, and the second valve unit 43 disconnects the connection between the second inlet 412 and the second mixing chamber 416. Cold water and room temperature water cannot be output from the first outlet 414. The third valve unit 44 connects the third inlet 413 and the second outlet 415. The water pump 15 pumps the room temperature water from the clean water tank 11 into the hot water tank 30 and drives the hot water in the hot water tank 30 to be discharged from the outlet 32 ​​of the hot water tank 30. The outlet 32 ​​of the hot water tank 30 is connected to the third inlet 413 so that the hot water is delivered to the third inlet 413 through the outlet 32 ​​of the hot water tank 30. After flowing through the third inlet 413, the hot water is delivered to the second outlet 415 for output, so that the user can collect hot water.

[0127] like Figure 6 and Figure 15 As shown, the flow path for hot water supply by the water supply equipment 100 is: outlet of water purification tank 11 → inlet 31 of hot water tank 30 → outlet 32 ​​of hot water tank 30 → third inlet 413 → second outlet 415 → water outlet 54.

[0128] In the cold water supply mode, the first valve unit 42 is closed, the second valve unit 43 is open, and the third valve unit 44 is closed. The first valve unit 42 disconnects the connection between the first inlet 411 and the mixing chamber 416, and the third valve unit 44 disconnects the connection between the third inlet 413 and the second outlet 415. Normal temperature water cannot enter the mixing chamber 416, and hot water cannot be output from the second outlet 415. The second valve unit 43 connects the second inlet 412 and the mixing chamber 416, and the water pump 15... The ambient temperature water pump 15 in the clean water tank 11 enters the cold tank 20 and drives the cold water in the cold tank 20 to be discharged from the outlet 22 of the cold tank 20. The outlet 22 of the cold tank 20 is connected to the second inlet 412 so that the cold water is delivered to the second inlet 412 through the outlet 22 of the cold tank 20. After the cold water flows through the second inlet 412, it flows into the mixing chamber 416. The mixing chamber 416 is connected to the first outlet 414 so that the cold water can be delivered to the first outlet 414 for output, so that the user can collect the cold water.

[0129] like Figure 6 and Figure 16 As shown, the flow path of cold water supplied by the drinking water equipment 100 is: outlet of water purification tank 11 → inlet 21 of cold tank 20 → outlet 22 of cold tank 20 → second inlet 412 → first outlet 414 → water nozzle 54.

[0130] In the normal temperature water supply mode, the first valve unit 42 is open, the second valve unit 43 is open, and the third valve unit 44 is closed. The first valve unit 42 connects the first water inlet 411 and the mixing chamber 416, the second valve unit 43 connects the second water inlet 412 and the mixing chamber 416, and the third valve unit 44 cuts off the connection between the third water inlet 413 and the second water outlet 415, so hot water cannot be output from the second water outlet 415. Pump 15 pumps room temperature water from the purified water tank 11 into the cold tank 20, and drives the cold water in the cold tank 20 to be discharged from the outlet 22 of the cold tank 20. The outlet 22 of the cold tank 20 is connected to the second inlet 412, so that the cold water is delivered to the second inlet 412 through the outlet 22 of the cold tank 20. After flowing through the second inlet 412, the cold water flows into the mixing chamber 416. Pump 15 can also directly pump room temperature water to the first inlet 411. After flowing through the first inlet 411, the room temperature water flows into the mixing chamber 416. The room temperature water and the cold water mix in the mixing chamber 416, which lowers the temperature of the room temperature water. The mixing chamber 416 is connected to the first outlet 414, so that the room temperature water with a lower temperature can be delivered to the first outlet 414 for output. This allows users to collect room temperature water with a lower temperature, avoiding the problem of the room temperature water being too high due to the heat transfer of heat from the hot tank 30 and other heating components to the purified water tank 11, which is beneficial to improving the user experience.

[0131] like Figure 6 and Figure 17As shown, the flow path of the drinking water equipment 100 supplying room temperature water is as follows: outlet of water purification tank 11 → inlet 21 of cold tank 20 → outlet 22 of cold tank 20 → second inlet 412 → mixing chamber 416 → first outlet 414 → water nozzle 54; and outlet of water purification tank 11 → first inlet 411 → mixing chamber 416 → first outlet 414 → water nozzle 54.

[0132] Combination Figures 1 to 6 , Figures 15 to 17 According to an embodiment of the present invention, the valve assembly 40 includes a valve body 41, a first valve unit 42, a second valve unit 43, and a third valve unit 44. The valve body 41 includes a first inlet 411, a second inlet 412, a third inlet 413, a first outlet 414, and a second outlet 415. The first valve unit 42 is configured to control the on / off connection between the first inlet 411 and the first outlet 414. The second valve unit 43 is configured to control the on / off connection between the second inlet 412 and the first outlet 414. The third valve unit 44 is configured to control the on / off connection between the third inlet 413 and the second outlet 415. Cold water and room temperature water are output through the first outlet 414, and hot water is output through the second outlet 415. This helps to reduce the possibility of hot water mixing with cold water or room temperature water, ensuring the outlet temperatures of cold water, room temperature water, and hot water, thereby improving the user experience.

[0133] For example, valve assembly 40 can be used in drinking water equipment 100, which also includes a water inlet structure, a cold tank 20, a hot tank 30, and a water outlet structure 50. The water inlet structure is used to supply room temperature water to the cold tank 20 and the hot tank 30. The cold tank 20 is used to cool the water source to generate cold water, and the hot tank 30 is used to heat the water source to generate hot water. Valve assembly 40 is used to control whether cold water, hot water, or room temperature water is output from the water outlet structure 50. The water outlet structure 50 is used to output cold water, hot water, or room temperature water.

[0134] The cold tank 20 has an inlet 21 connected to a water inlet structure, allowing room temperature water to be supplied to the cold tank 20 for cooling. The hot tank 30 has an inlet 31 connected to a water inlet structure, allowing room temperature water to be supplied to the hot tank 30 for heating. The first inlet 411 is connected to the water inlet structure, allowing room temperature water to be supplied to the first inlet 411. The second inlet 412 is connected to the outlet 22 of the cold tank 20, allowing cold water to be supplied to the second inlet 412 after exiting the outlet 22. The third inlet 413 is connected to the outlet 32 ​​of the hot tank 30, allowing hot water to be supplied to the third inlet 413 after exiting the outlet 32.

[0135] In conjunction with the foregoing, the water outlet structure 50 can connect the first outlet 414 and the second outlet 415. When the first valve unit 42 connects the first inlet 411 and the first outlet 414, the first outlet 414 can output room temperature water. When the first valve unit 42 disconnects the connection between the first inlet 411 and the first outlet 414, the first outlet 414 cannot output room temperature water. When the second valve unit 43 connects the second inlet 412 and the first outlet 414, the first outlet 414 can output cold water. When the second valve unit 43 disconnects the connection between the second inlet 412 and the first outlet 414, the first outlet 414 cannot output cold water. When the third valve unit 44 connects the third inlet 413 and the second outlet 415, the second outlet 415 can output hot water. When the third valve unit 44 disconnects the connection between the third inlet 413 and the second outlet 415, the second outlet 415 cannot output hot water.

[0136] In addition, cold water and room temperature water are output through the first outlet 414, while hot water is output through the second outlet 415. Hot water and cold / room temperature water can be output from different outlets, reducing the probability of contact between them. This helps to minimize the possibility of hot water mixing with cold or room temperature water, avoiding situations where the water temperature is too high when cold or room temperature water is drawn, or too low when hot water is drawn. Even if the user immediately draws cold or room temperature water after drawing hot water, the temperature of the hot water has little impact on the temperature of the cold or room temperature water, allowing the cold or room temperature water to maintain a lower output temperature, ensuring the user receives water at a suitable temperature. Alternatively, if the user immediately draws cold or room temperature water and then immediately draws hot water, the temperature of the cold and room temperature water has little impact on the temperature of the hot water, allowing the hot water to maintain a higher output temperature, ensuring the user receives the desired hot water temperature, thus improving the user's water dispensing experience.

[0137] Combination Figures 1 to 4 as well as Figure 6 In some embodiments, the valve assembly 40 includes a mixing chamber 416, a first outlet 414 connecting to the mixing chamber 416, a first valve unit 42 configured to control the connection between the first inlet 411 and the mixing chamber 416, and a second valve unit 43 configured to control the connection between the second inlet 412 and the mixing chamber 416. When a user draws cold water, the first valve unit 42 disconnects the connection between the first inlet 411 and the mixing chamber 416, and the second valve unit 43 connects the second inlet 412 and the mixing chamber 416. Cold water can flow into the mixing chamber 416 from the second inlet 412 and is then output from the first outlet 414.

[0138] In conjunction with the foregoing, the components such as the hot tank 30 and the compression unit (used to compress the coolant for cooling within the cold tank 20) ​​generate heat during operation and radiate this heat to the room temperature water, resulting in the room temperature water being too hot. In the drinking water device 100 of this embodiment, when a user draws room temperature water, the first valve unit 42 connects the first inlet 411 and the mixing chamber 416, and the second valve unit 43 connects the second inlet 412 and the mixing chamber 416. Room temperature water and cold water can simultaneously flow into the mixing chamber 416 and mix, which helps to lower the temperature of the room temperature water and prevents the output temperature from being too high, thereby optimizing the user experience.

[0139] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0140] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0141] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0142] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0143] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0144] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A drinking water device (100), characterized in that, include: Water inlet structure; A cold tank (20), the inlet (21) of which is connected to a water inlet structure; A hot tank (30), the inlet (31) of which is connected to a water inlet structure; Valve assembly (40) includes a first inlet (411), a second inlet (412), a third inlet (413), a first outlet (414), and a second outlet (415). The first inlet (411) is connected to the water inlet structure, the second inlet (412) is connected to the outlet (22) of the cold tank (20), and the third inlet (413) is connected to the outlet (32) of the hot tank (30). A water outlet structure (50) is provided, which connects the first water outlet (414) and the second water outlet (415). The valve assembly (40) includes a first valve unit (42), a second valve unit (43), and a third valve unit (44). The first valve unit (42) is configured to control the on / off connection between the first inlet (411) and the first outlet (414). The second valve unit (43) is configured to control the on / off connection between the second inlet (412) and the first outlet (414). The third valve unit (44) is configured to control the on / off connection between the third inlet (413) and the second outlet (415).

2. The drinking water equipment (100) according to claim 1, characterized in that, The valve assembly (40) includes a mixing chamber (416), the first outlet (414) is connected to the mixing chamber (416), the first valve unit (42) is configured to control the on / off connection between the first inlet (411) and the mixing chamber (416), and the second valve unit (43) is configured to control the on / off connection between the second inlet (412) and the mixing chamber (416).

3. The drinking water equipment (100) according to claim 2, characterized in that, The valve assembly (40) includes a valve body (41), and the first inlet (411), the second inlet (412), the third inlet (413), the first outlet (414), the second outlet (415), and the mixing chamber (416) are disposed on the valve body (41).

4. The drinking water equipment (100) according to claim 3, characterized in that, The valve body (41) includes a first inlet chamber (461), a second inlet chamber (462), a first connecting port (464), and a second connecting port (465). The first inlet port (411) is connected to the first inlet chamber (461), and the second inlet port (412) is connected to the second inlet chamber (462). The first connecting port (464) and the second connecting port (465) are connected to the mixing chamber (416). The first valve unit (42) is configured to control the opening and closing of the first connecting port (464). When the first connecting port (464) is open, it is connected to the first water inlet chamber (461). The second valve unit (43) is configured to control the opening and closing of the second connecting port (465). When the second connecting port (465) is open, it is connected to the second water inlet chamber (462).

5. The drinking water equipment (100) according to claim 1, characterized in that, The valve assembly (40) includes a valve body (41), the valve body (41) including a third inlet chamber (463) and a third connecting port (466), the third inlet port (413) communicating with the third inlet chamber (463). The second outlet (415) is connected to the third connecting port (466), and the third valve unit (44) is configured to control the opening and closing of the third connecting port (466). When the third connecting port (466) is open, it is connected to the third inlet chamber (463).

6. The drinking water equipment (100) according to claim 1, characterized in that, The water outlet structure (50) includes a first pipe section (51), a second pipe section (52) and a third pipe section (53). One end of the first pipe section (51) is connected to the first water outlet (414), one end of the second pipe section (52) is connected to the second water outlet (415), one end of the third pipe section (53) is connected to the other end of the first pipe section (51) and the other end of the second pipe section (52), and the other end of the third pipe section (53) is used for water outlet.

7. The drinking water equipment (100) according to claim 1, characterized in that, The water inlet structure includes: A clean water tank (11) is provided with a water storage chamber for storing water. The outlet of the clean water tank (11) is connected to the inlet (21) of the cold tank (20), the inlet (31) of the hot tank (30), and the valve assembly (40).

8. The drinking water device (100) according to claim 7, characterized in that, The water inlet structure includes: A first check valve (12) is connected in series between the outlet of the clean water tank (11) and the inlet (31) of the hot water tank (30), and the first check valve (12) is configured to allow fluid to flow unidirectionally from the clean water tank (11) to the hot water tank (30).

9. The drinking water device (100) according to claim 7, characterized in that, The water inlet structure includes a first damping plug (13), one end of which is connected to the first exhaust port of the hot tank (30), and the other end of which is connected to the upper space inside the water purification tank (11). And / or, the water inlet structure includes a second damping plug (14), one end of which is connected to the second vent of the cold tank (20), and the other end of which is connected to the upper space inside the clean water tank (11).

10. The drinking water equipment (100) according to claim 9, characterized in that, The aperture size of the first damping plug (13) is not greater than 1 mm; or, the aperture size of the second damping plug (14) is not greater than 1 mm.

11. The drinking water device (100) according to claim 7, characterized in that, The water inlet structure includes: A water pump (15) is provided, the inlet of which is connected to the outlet of the clean water tank (11), and the outlet of which is connected to the inlet (21) of the cold tank (20), the inlet (31) of the hot tank (30), and the valve assembly (40).

12. The drinking water equipment (100) according to claim 7, characterized in that, The water tank (11) is equipped with a first water level monitoring unit (111) and a second water level monitoring unit (112). The first water level monitoring unit (111) and the second water level monitoring unit (112) are redundant to each other, and there is a difference between the water level monitored by the first water level monitoring unit (111) and the water level monitored by the second water level monitoring unit (112).

13. The drinking water device (100) according to claim 12, characterized in that, The water level monitored by the first water level monitoring unit (111) is higher than the water level monitored by the second water level monitoring unit (112); the first water level monitoring unit (111) is a water level probe, and the second water level monitoring unit (112) is an electronic float.

14. The drinking water equipment (100) according to claim 1, characterized in that, The inlet (21) of the cold tank (20) is connected to the upper part of the internal space of the cold tank (20); and / or, the inlet (31) of the hot tank (30) is connected to the lower part of the internal space of the hot tank (30); and / or, the hot tank (30) is provided with a first baffle (34) opposite to the inlet (31) of the hot tank (30); and / or, the cold tank (20) is provided with a second baffle (24) opposite to the inlet (21) of the cold tank (20).

15. The drinking water equipment (100) according to claim 1, characterized in that, The outlet (22) of the cold tank (20) is located on the bottom wall of the cold tank (20); or, the top wall of the cold tank (20) is provided with a mating hole (25) and a water outlet pipe (26), the water outlet pipe (26) passes through the mating hole (25), one end of the water outlet pipe (26) extends to the bottom of the internal space of the cold tank (20), and the other end of the water outlet pipe (26) of the cold tank (20) is used for water discharge.

16. The drinking water equipment (100) according to claim 1, characterized in that, The drinking water equipment (100) includes a cold water supply mode, a hot water supply mode, and a room temperature water supply mode, wherein, In the hot water supply mode, the first valve unit (42) is closed, the second valve unit (43) is closed, and the third valve unit (44) is open; In the cooling water supply mode, the first valve unit (42) is closed, the second valve unit (43) is open, and the third valve unit (44) is closed; In the normal temperature water supply mode, the first valve unit (42) is open, the second valve unit (43) is open, and the third valve unit (44) is closed.

17. A valve assembly (40), characterized in that, The valve assembly (40) includes: Valve body (41), the valve body (41) includes a first inlet (411), a second inlet (412), a third inlet (413), a first outlet (414), and a second outlet (415); A first valve unit (42) is configured to control the opening and closing of the first inlet (411) and the first outlet (414); The second valve unit (43) is configured to control the on / off connection between the second inlet (412) and the first outlet (414); A third valve unit (44) is configured to control the on / off connection between the third inlet (413) and the second outlet (415).

18. The valve assembly (40) according to claim 17, characterized in that, The valve assembly (40) includes a mixing chamber (416), the first outlet (414) is connected to the mixing chamber (416), the first valve unit (42) is configured to control the on / off connection between the first inlet (411) and the mixing chamber (416), and the second valve unit (43) is configured to control the on / off connection between the second inlet (412) and the mixing chamber (416).

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