Multi-temperature instant hot and cold water dispenser

Abstract

This utility model relates to the field of water dispenser technology, specifically to a multi-temperature instant hot and cold direct drinking water dispenser. The utility model includes, from bottom to top, a filtration mechanism, a water replenishment mechanism, a cooling mechanism, a heat exchange mechanism, a heating mechanism, and a water dispensing mechanism. The water dispensing mechanism includes a water outlet I and a water outlet II, wherein: water outlet I is connected to a direct drinking water pipeline, an ice water pipeline, and a hot water pipeline I; water outlet II is connected to a hot water pipeline II, a cooled boiled water pipeline, and a constant temperature water pipeline. This utility model provides two water outlets, offering multiple water temperature options and avoiding cross-contamination; it can prepare ice water, hot water, cooled boiled water, and constant temperature water as needed to meet different scenarios; the filtration mechanism provides tiered processing, reducing the load on each stage and improving filtration efficiency and stability; backwashing restores the performance of the RO membrane and extends its service life.

Description

Technical Field

[0001] This utility model relates to the field of water dispenser technology, specifically to a multi-temperature instant hot and cold direct drinking water dispenser. Background Technology

[0002] Traditional water dispensers have limited functionality, generally only providing hot or cold water at a single temperature, making it difficult to meet users' diverse drinking needs such as ice water, cooled boiled water, and constant-temperature water. To overcome this challenge, those skilled in the art have continuously explored innovations. For example, Chinese patent CN221344251U discloses a hot and cold water supply system and a water purifier, whose hot and cold water branches can respectively meet users' needs for hot and cold water, and also includes a room-temperature water branch to increase the number of water outlets. However, this solution still has shortcomings: firstly, the number of water outlets is small, and mixing water at different temperatures can easily lead to cross-contamination; secondly, it cannot achieve instant hot and cold water effects simultaneously, requiring a long waiting time for heating or cooling; and thirdly, the filtration system has a high load, and the RO membrane is prone to clogging, resulting in high maintenance costs and a short service life. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a multi-temperature instant hot and cold water dispenser.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A multi-temperature instant hot and cold water dispenser includes, from bottom to top, a filtration mechanism, a water replenishment mechanism, a cooling mechanism, a heat exchange mechanism, a heating mechanism, and a water dispensing mechanism. The water dispensing mechanism includes a water outlet I and a water outlet II, wherein:

[0006] Water outlet I is connected to the drinking water pipeline, the ice water pipeline, and the hot water pipeline I, respectively, wherein:

[0007] The direct drinking water pipeline is connected to the tap water supply at one end and directly connected to the combination valve at the water outlet I through the filtration mechanism at the other end.

[0008] The chilled water pipeline is connected at one end to the filter mechanism and at the other end directly to the combination valve at the outlet I through the refrigeration mechanism.

[0009] Hot water pipe I, one end of which is connected to the filter mechanism, and the other end of which is connected to the hot water outlet valve I at the water outlet I through the water supply mechanism and the heating mechanism in sequence;

[0010] Water outlet II is connected to hot water pipe II, cooled boiled water pipe, and constant temperature water pipe, respectively.

[0011] Hot water pipe II, one end of which is connected to the filter mechanism, and the other end of which is connected to the hot water outlet valve II at the water outlet II via the water supply mechanism and the heating mechanism in sequence;

[0012] The cooled boiled water pipeline is connected at one end to the filter mechanism, and at the other end to the cooled boiled water valve at the outlet II via the water supply mechanism and the heat exchange mechanism.

[0013] The constant temperature water pipeline includes a hot water outlet valve II and a cool boiled water valve located at the water outlet II. The hot water outlet valve II is connected to the hot water pipeline II, and the cool boiled water valve is connected to the cool boiled water pipeline. The constant temperature water is obtained by controlling the ratio of hot water to cool boiled water.

[0014] This technical solution uses two water outlets, I and II, to separate different types of water, preventing cross-contamination between waters of different temperatures and allowing users to quickly select the desired water temperature. Specifically, the filtration system pre-purifies the tap water, removing large particles and residual chlorine, reducing the workload of subsequent cooling and heating systems and extending the equipment's lifespan. For hot water supply, a water replenishment system adds filtered water to the heating system, ensuring a continuous and stable water source. The heating system boils the water, providing hot water to hot water pipes I and II to meet users' hot water needs. The cooling system directly cools the filtered water, providing ice water to the ice water pipes to meet users' needs for cold drinks. The heat exchange system utilizes the heat from the hot water in the hot water pipes to prepare cooled boiled water after filtration and replenishment, achieving heat recovery. Water outlet II controls the ratio of hot water to cooled boiled water to provide a constant temperature, meeting users' specific temperature requirements and improving the user experience. The direct drinking water machine controls the operation of its cooling and heating mechanisms separately based on the user's needs for different water temperatures. The corresponding mechanism only activates when the user requires ice water or hot water, avoiding unnecessary energy waste and achieving on-demand energy allocation and efficient utilization.

[0015] In addition, the multi-temperature instant hot and cold water dispenser proposed in this utility model also has the following additional technical features:

[0016] According to one embodiment of the present invention, the filtration mechanism includes a pre-filter I and a pre-filter II connected in parallel. Tap water is pre-filtered through the pre-filter I and the pre-filter II, and then pumped by a booster pump to an RO membrane filter for further filtration. The filtered water is then post-filtered through a post-activated carbon filter.

[0017] In this technical solution, the filtration mechanism divides the filtration process into three stages: pre-filtration, RO membrane filtration, and post-filtration. Each stage undertakes a different filtration task, achieving tiered treatment. Pre-filtration removes large particulate impurities, reducing the burden on the RO membrane filter and allowing it to focus more on removing fine contaminants. Post-filtration further treats the water after RO membrane filtration, improving water quality. This tiered treatment approach reduces the load on each filtration stage, improving the efficiency and stability of the entire filtration system.

[0018] According to one embodiment of the present invention, one end of the booster pump is connected to pre-filter I and pre-filter II via a solenoid valve; the other end of the booster pump is connected to the pressure tank via a flushing valve, and the pressure tank is connected to the outlet of the RO membrane filter via a pipeline.

[0019] In this technical solution, the booster pump pressurizes the water treated by the pre-filter, ensuring that the water enters the RO membrane filter at a stable and sufficient pressure. One end of the booster pump is connected to the pressure tank via a flushing valve. The flushing valve opens when needed, allowing the water in the pressure tank to flow back into the RO membrane filter for backwashing. Through backwashing, impurities deposited on the surface of the RO membrane are washed away, restoring the filtration performance of the RO membrane and extending its service life.

[0020] According to one embodiment of the present invention, the direct drinking water pipeline is further provided with a weak alkaline filter element and a one-way valve. The filtered water passes through the weak alkaline filter element and is connected to the one-way valve. The one-way valve is connected to an inlet of the combination valve through a pipeline.

[0021] In this technical solution, the weakly alkaline filter cartridge typically contains natural minerals. When water passes through the weakly alkaline filter cartridge, it neutralizes acidic substances in the water, causing the pH value of the water to rise and tend towards weak alkalinity. In the direct drinking water pipeline, a one-way valve prevents water that has already been treated by the weakly alkaline filter cartridge from flowing back to the filter cartridge or the preceding filtration stage.

[0022] According to one embodiment of the present invention, the ice water pipeline includes an ice chamber with a built-in evaporator. The filtered water is divided into two parts: one part is connected to the evaporator, and the other part is cooled through the ice chamber and connected to another inlet of the combination valve.

[0023] In this technical solution, the evaporator is built into the ice chamber. When part of the filtered water flows into the pipes connected to the evaporator, the refrigerant inside the evaporator evaporates rapidly under low pressure, absorbing heat from the surrounding water and causing the water temperature to drop quickly. The other part of the filtered water passes directly through the ice chamber, which itself has good thermal conductivity and cold storage capacity. The water, which has been initially cooled by the evaporator, further exchanges heat with the inner wall of the ice chamber. The ice chamber absorbs and stores the heat from the water, achieving a continuous cooling effect.

[0024] According to one embodiment of the present invention, the water replenishment mechanism includes a water replenishment solenoid valve, a purified water tank, and a water replenishment heat exchange pump. One end of the purified water tank is connected to the filtration mechanism through the water replenishment solenoid valve, and the other end of the purified water tank is connected to the hot water pipe of the heat exchange mechanism through the water replenishment heat exchange pump. The hot water pipe is connected to the heating mechanism.

[0025] In this technical solution, the heat exchange mechanism is typically connected to the heating mechanism. The water in the hot water pipe has already absorbed the heat generated by the heating mechanism and has a high temperature. When the water in the clean water tank enters the hot water pipe through the water replenishment heat exchange pump, it exchanges heat with the high-temperature water in the hot water pipe, thereby increasing its own temperature. When the water level is below the set lower limit, the water replenishment solenoid valve opens to replenish water; when the water level reaches the set upper limit, the water replenishment solenoid valve closes to stop replenishing water.

[0026] According to one embodiment of the present invention, the heating mechanism of the hot water pipe I and the hot water pipe II includes a hot water tank with a built-in heating tube, and the hot water tank is connected to a heat exchanger, a hot water outlet valve I and a hot water outlet valve II respectively through pipes.

[0027] In this technical solution, the hot water tank is connected to hot water outlet valve I and hot water outlet valve II via pipes, simultaneously supplying hot water to two different water usage points. Each hot water outlet valve independently controls the flow of hot water, allowing users to open or close the corresponding outlet valve at any time according to their needs.

[0028] According to one embodiment of the present invention, the combined valve is a three-way valve, including two inlets and one outlet. The two inlets are respectively connected to a direct drinking water pipeline and an ice water pipeline, and the outlet is connected to the water outlet I through a flow sterilizer.

[0029] In this technical solution, when direct drinking water is needed, the valve core of the combination valve will adjust its position to connect the direct drinking water pipeline with the water outlet I, while blocking the ice water pipeline; conversely, when ice water is needed, the ice water pipeline will be connected to the water outlet I, cutting off the direct drinking water pipeline.

[0030] According to one embodiment of the present invention, the heat exchange mechanism includes a heat exchanger, the lower part of which is connected to a clean water tank via a water replenishment heat exchange pump, and the upper part of which is connected to the inlet and outlet of a hot water tank respectively; the side of the heat exchanger is connected to a boil-and-cool water valve via a boil-and-cool water pump.

[0031] In this technical solution, the water replenishment heat exchange pump is used to pump the purified water from the water tank to the heat exchanger. When the water volume in the heat exchanger decreases, the water replenishment heat exchange pump can replenish the purified water from the water tank in a timely manner to ensure the stability of the water volume in the heat exchanger and maintain the continuous heat exchange process. During the water replenishment process, the purified water exchanges heat with the high-temperature fluid in the heat exchanger to achieve preheating of the purified water and save energy for heating the purified water to the required temperature in the future.

[0032] According to one embodiment of the present invention, the cooled boiled water pipeline includes a cooled boiled water pump and an automatic water replenishment valve. The filtered water is connected to the cooled boiled water pump through the automatic water replenishment valve. The cooled boiled water pump is connected to the water outlet II through a cooled boiled water valve and a flow sterilizer.

[0033] In this technical solution, the filtered water first enters the pipeline through an automatic water supply valve, which adjusts the water volume according to the pipeline status. Then, the cooled boiled water pump pressurizes and delivers the water, providing power for the water flow. After that, the water is controlled by the cooled boiled water valve, and finally, the water flows out from the outlet II after being deeply sterilized by the flow sterilizer for user use.

[0034] Compared with the prior art, this utility model has the following advantages:

[0035] (1) Two water outlets are provided to offer multiple water temperature options and avoid cross-contamination; ice water, hot water, cooled boiled water and constant temperature water can be prepared as needed to meet the multi-temperature instant cooling and heating needs of different scenarios;

[0036] (2) The filtration mechanism is graded to reduce the load on each stage and improve filtration efficiency and stability; backwashing restores the performance of the RO membrane and extends its service life. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the structure of this utility model.

[0038] Figure 2 This is the waterway diagram for water outlet I.

[0039] Figure 3 This is the water path diagram for water outlet II.

[0040] In the diagram: 1. Filtration mechanism; 11. Pre-filter I; 12. Pre-filter II; 13. Booster pump; 14. RO membrane filter; 15. Pressure tank; 16. Post-activated carbon filter; 2. Water supply mechanism; 21. Clean water tank; 3. Refrigeration mechanism; 31. Ice tank; 4. Heat exchange mechanism; 41. Heat exchanger; 5. Heating mechanism; 51. Water heater; 6. Water outlet mechanism; 61. Water outlet I; 62. Water outlet II. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0042] Example 1

[0043] like Figure 1 As shown, this embodiment provides a multi-temperature instant hot and cold water dispenser, including a filtration mechanism 1, a water replenishment mechanism 2, a cooling mechanism 3, a heat exchange mechanism 4, a heating mechanism 5, and a water dispensing mechanism 6 arranged sequentially from bottom to top. The water dispensing mechanism 6 includes a water outlet I 61 and a water outlet II 62, wherein:

[0044] like Figure 2 As shown, water outlet I61 is connected to the direct drinking water pipeline, the ice water pipeline, and the hot water pipeline I, respectively.

[0045] The drinking water pipeline has one end connected to the tap water supply and the other end directly connected to the combination valve at the water outlet I61 through the filter mechanism 1.

[0046] The chilled water pipeline is connected at one end to the filter mechanism 1 and at the other end directly to the combination valve at the water outlet I61 via the refrigeration mechanism 3.

[0047] Hot water pipe I, one end of which is connected to filter mechanism 1, and the other end of which is connected to the hot water outlet valve I at water outlet I61 via water supply mechanism 2 and heating mechanism 5 in sequence;

[0048] like Figure 3 As shown, water outlet II62 is connected to hot water pipe II, cooled boiled water pipe, and constant temperature water pipe, respectively.

[0049] Hot water pipe II, one end of which is connected to filter mechanism 1, and the other end of which is connected to the hot water outlet valve II at water outlet II62 via water supply mechanism 2 and heating mechanism 5 in sequence;

[0050] The cooled boiled water pipeline is connected at one end to the filter mechanism 1, and at the other end to the cooled boiled water valve at the outlet II 62 via the water supply mechanism 2 and the heat exchange mechanism 4 in sequence.

[0051] The constant temperature water pipeline includes a hot water outlet valve II and a cool boiled water valve located at the water outlet II62. The hot water outlet valve II is connected to the hot water pipeline II, and the cool boiled water valve is connected to the cool boiled water pipeline. The constant temperature water is obtained by controlling the ratio of hot water to cool boiled water.

[0052] like Figures 1 to 3As shown, this technical solution uses outlets I 61 and II 62 to separate different types of water, avoiding cross-contamination between waters of different temperatures and allowing users to quickly select the desired water temperature. Specifically, the filtration unit 1 performs preliminary purification of tap water, removing large particles and residual chlorine, reducing the workload of subsequent refrigeration and heating units and extending the equipment's lifespan. For hot water supply, the water replenishment unit 2 replenishes the filtered water to the heating unit 5, ensuring a continuous and stable water source. The heating unit 5 heats the water to boiling, providing hot water to hot water pipes I and II to meet users' hot water needs. The refrigeration unit 3 directly cools the filtered water, providing ice water to the ice water pipes to meet users' needs for cold drinks. The heat exchange unit 4 utilizes the heat from the hot water in the hot water pipes to prepare cooled boiled water after filtration and water replenishment unit 2, achieving heat recovery. The water outlet II62 controls the ratio of hot water to cooled boiled water to produce water at a constant temperature, meeting users' needs for specific water temperatures and improving the user experience. The water purifier controls the operation of the cooling mechanism 3 and the heating mechanism 5 according to the user's different water temperature requirements. The corresponding mechanism only activates when the user needs ice water or hot water, avoiding unnecessary energy waste and achieving on-demand energy allocation and efficient utilization.

[0053] In addition, the multi-temperature instant hot and cold water dispenser proposed in this utility model also has the following additional technical features:

[0054] According to one embodiment of the present invention, the filtration mechanism 1 includes a pre-filter I 11 and a pre-filter II 12 connected in parallel. Tap water is pre-filtered through the pre-filter I 11 and the pre-filter II 12, and then pumped by the booster pump 13 to the RO membrane filter 14 for further filtration. The filtered water is then post-filtered through the post-activated carbon 16.

[0055] In this technical solution, the filtration mechanism 1 divides the filtration process into three stages: pre-filtration, RO membrane filtration, and post-filtration. Each stage undertakes a different filtration task, achieving graded treatment. The pre-filtration first removes large particulate impurities, reducing the burden on the RO membrane filter 14 and allowing it to focus more on removing tiny contaminants. The post-filtration further treats the water after RO membrane filtration, improving water quality. The graded treatment method of the filtration mechanism 1 reduces the load on each filtration stage, improving the efficiency and stability of the entire filtration system.

[0056] According to one embodiment of the present invention, one end of the booster pump 13 is connected to the pre-filter I 11 and the pre-filter II 12 via a solenoid valve; one end of the booster pump 13 is connected to the pressure tank 15 via a flushing valve, and the pressure tank 15 is connected to the outlet of the RO membrane filter 14 via a pipeline.

[0057] In this technical solution, the booster pump 13 pressurizes the water treated by the pre-filter, ensuring that the water enters the RO membrane filter 14 at a stable and sufficient pressure. One end of the booster pump 13 is connected to the pressure tank 15 via a flushing valve. The flushing valve opens when needed, allowing the water in the pressure tank 15 to flow back into the RO membrane filter 14 to backwash the RO membrane. Through backwashing, impurities deposited on the surface of the RO membrane are washed away, restoring the filtration performance of the RO membrane and extending its service life.

[0058] According to one embodiment of the present invention, the direct drinking water pipeline is further provided with a weak alkaline filter element and a one-way valve. The filtered water passes through the weak alkaline filter element and is connected to the one-way valve. The one-way valve is connected to an inlet of the combination valve through a pipeline.

[0059] In this technical solution, the weakly alkaline filter cartridge typically contains natural minerals. When water passes through the weakly alkaline filter cartridge, it neutralizes acidic substances in the water, causing the pH value of the water to rise and tend towards weak alkalinity. In the direct drinking water pipeline, a one-way valve prevents water that has already been treated by the weakly alkaline filter cartridge from flowing back to the filter cartridge or the preceding filtration stage.

[0060] According to one embodiment of the present invention, the ice water pipeline includes an ice chamber 31 with a built-in evaporator. The filtered water is divided into two parts: one part is connected to the evaporator, and the other part is cooled through the ice chamber 31 and connected to another inlet of the combination valve.

[0061] In this technical solution, the evaporator is built into the ice chamber 31. When part of the filtered water flows into the pipe connected to the evaporator, the refrigerant in the evaporator evaporates rapidly under low pressure, absorbing heat from the surrounding water and causing the water temperature to drop rapidly. The other part of the filtered water passes directly through the ice chamber 31, which itself has good thermal conductivity and cold storage capacity. The water, which has been initially cooled by the evaporator, further exchanges heat with the inner wall of the ice chamber 31. The ice chamber 31 absorbs and stores the heat from the water, achieving a continuous cooling effect.

[0062] According to one embodiment of the present invention, the water replenishment mechanism 2 includes a water replenishment solenoid valve, a purified water tank 21 and a water replenishment heat exchange pump. One end of the purified water tank 21 is connected to the filter mechanism 1 through the water replenishment solenoid valve, and the other end of the purified water tank 21 is connected to the hot water pipe of the heat exchange mechanism 4 through the water replenishment heat exchange pump. The hot water pipe is connected to the heating mechanism 5.

[0063] In this technical solution, the heat exchange mechanism 4 is usually connected to the heating mechanism 5. The water in the hot water pipe has already absorbed the heat generated by the heating mechanism 5 and has a high temperature. When the water in the clean water tank 21 enters the hot water pipe through the water replenishment heat exchange pump, it will exchange heat with the high-temperature water in the hot water pipe, thereby increasing its own temperature. When the water level is lower than the set lower limit, the water replenishment solenoid valve opens to replenish water; when the water level reaches the set upper limit, the water replenishment solenoid valve closes to stop replenishing water.

[0064] According to one embodiment of the present invention, the heating mechanism 5 of the hot water pipe I and hot water pipe II includes a hot water tank with a built-in heating tube. The hot water tank is connected to a heat exchanger 41, a hot water outlet valve I and a hot water outlet valve II respectively through pipes.

[0065] In this technical solution, the hot water tank is connected to hot water outlet valve I and hot water outlet valve II via pipes, simultaneously supplying hot water to two different water usage points. Each hot water outlet valve independently controls the flow of hot water, allowing users to open or close the corresponding outlet valve at any time according to their needs.

[0066] According to one embodiment of the present invention, the combined valve is a three-way valve, including two inlets and one outlet. The two inlets are respectively connected to a direct drinking water pipeline and an ice water pipeline, and the outlet is connected to the water outlet I61 through a flow sterilizer.

[0067] In this technical solution, when direct drinking water is needed, the valve core of the combination valve will adjust its position to connect the direct drinking water pipeline with the water outlet I61, while blocking the ice water pipeline; conversely, when ice water is needed, the ice water pipeline will be connected to the water outlet I61, cutting off the direct drinking water pipeline.

[0068] According to one embodiment of the present invention, the heat exchange mechanism 4 includes a heat exchanger 41. The lower part of the heat exchanger 41 is connected to the clean water tank 21 via a water replenishment heat exchange pump, and the upper part of the heat exchanger 41 is connected to the inlet and outlet of the hot water tank respectively. The side of the heat exchanger 41 is connected to the cool boiled water valve via a cool boiled water pump.

[0069] In this technical solution, the water replenishment heat exchange pump is used to pump the purified water in the purified water tank 21 to the heat exchanger 41. When the water volume in the heat exchanger 41 decreases, the water replenishment heat exchange pump can replenish the purified water from the purified water tank 21 in a timely manner to ensure the stability of the water volume in the heat exchanger 41 and maintain the continuous heat exchange process. During the water replenishment process, the purified water exchanges heat with the high-temperature fluid in the heat exchanger 41 to achieve preheating of the purified water and save energy for heating the purified water to the required temperature in the future.

[0070] According to one embodiment of the present invention, the cooled boiled water pipeline includes a cooled boiled water pump and an automatic water replenishment valve. The filtered water is connected to the cooled boiled water pump through the automatic water replenishment valve. The cooled boiled water pump is connected to the water outlet II62 through a cooled boiled water valve and a flow sterilizer.

[0071] In this technical solution, the filtered water first enters the pipeline through an automatic water supply valve, which adjusts the water volume according to the pipeline status. Then, the cooled boiled water pump pressurizes and delivers the water, providing power for the water flow. After that, the water is controlled by the cooled boiled water valve, and finally, the water flows out from the outlet II62 after being deeply sterilized by the flow sterilizer for user use.

[0072] The usage process of the above embodiments is as follows:

[0073] like Figure 2 As shown, the water intake process is as follows:

[0074] Direct drinking water intake: Tap water enters the filtration unit 1, passes through pre-filters I11 and II to remove large particulate impurities, is pressurized by booster pump 13 and sent to RO membrane filter for deep filtration, and then passes through post-activated carbon 16 to improve water quality; the water flows into the direct drinking water pipeline, passes through the weak alkaline filter to make the water weakly alkaline, and reaches the combination valve through the one-way valve; at this time, the combination valve adjusts the valve core to connect the direct drinking water pipeline with the water outlet I61, blocking the ice water pipeline, and the direct drinking water flows out after being sterilized by the flow sterilizer of water outlet I61.

[0075] Taking ice water: After filtration, the water enters the ice water pipeline. Part of it flows into the pipeline connected to the evaporator. The refrigerant in the evaporator evaporates rapidly and absorbs heat, which cools the water quickly. The other part passes directly through the ice tank 31. The water that has been initially cooled exchanges heat with the inner wall of the ice tank 31 to achieve continuous cooling. The position of the combination valve is adjusted to connect the ice water pipeline with the water outlet I61 and cut off the direct drinking water pipeline. The ice water flows out after being sterilized by the flow sterilizer of the water outlet I61.

[0076] Hot water intake: After filtration, the water enters the clean water tank 21 through the water replenishment mechanism 2. The water replenishment solenoid valve is opened to replenish the water. The water replenishment heat exchange pump heats the water with the high temperature water in the hot water pipe and then enters the hot water tank of the heating mechanism 5. The heating pipe heats the water to boiling. The hot water reaches the hot water outlet valve I at the water outlet I 61 through the hot water pipe I. When the valve is opened, the hot water flows out.

[0077] like Figure 3 As shown, the water dispensing process when the water outlet II62 is opened is as follows:

[0078] Hot water extraction: The filtered water enters the hot water tank through the water replenishment mechanism 2 and is heated to boiling. The hot water then travels through the hot water pipe Ⅱ to the hot water outlet valve Ⅱ at the water outlet Ⅱ62. Opening this valve allows the hot water to flow out.

[0079] Taking cooled boiled water: The filtered water enters the cooled boiled water pipeline through the automatic water supply valve. The cooled boiled water pump pressurizes and delivers the water. The water enters the heat exchange mechanism 4 and exchanges heat with the high-temperature water in the hot water pipe. After that, it flows out from the water outlet II62 through the cooled boiled water valve and the flow sterilizer.

[0080] To obtain a constant temperature water: Simultaneously open the hot water outlet valve II and the cooled boiled water valve at outlet II62. By adjusting the opening of the two valves, control the ratio of hot water to cooled boiled water. The two are mixed at outlet II62 to obtain a constant temperature water before it flows out.

[0081] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A multi-temperature instant hot and cold direct drinking water machine, characterized in that, The device comprises, from bottom to top, a filtering mechanism (1), a water supplementing mechanism (2), a refrigerating mechanism (3), a heat exchanging mechanism (4), a heating mechanism (5) and a water outlet mechanism (6), wherein the water outlet mechanism (6) comprises a water outlet nozzle I (61) and a water outlet nozzle II (62). The water outlet nozzle I (61) is connected with a direct drinking water pipeline, an ice water pipeline and a hot water pipeline I respectively, wherein the direct drinking water pipeline has one end connected with tap water and the other end directly connected with a combination valve at the water outlet nozzle I (61) through the filtering mechanism (1). The ice water pipeline has one end connected with the filtering mechanism (1) and the other end directly connected with the combination valve at the water outlet nozzle I (61) through the refrigerating mechanism (3). The hot water pipeline I has one end connected with the filtering mechanism (1) and the other end connected with a boiled water outlet valve I at the water outlet nozzle I (61) through the water supplementing mechanism (2) and the heating mechanism (5) in sequence. The water outlet nozzle II (62) is connected with a hot water pipeline II, a cool boiled water pipeline and a constant temperature water pipeline respectively, wherein the hot water pipeline II has one end connected with the filtering mechanism (1) and the other end connected with a boiled water outlet valve II at the water outlet nozzle II (62) through the water supplementing mechanism (2) and the heating mechanism (5) in sequence. The cool boiled water pipeline has one end connected with the filtering mechanism (1) and the other end connected with a cool boiled water valve at the water outlet nozzle II (62) through the water supplementing mechanism (2) and heat exchanging mechanism (4) in sequence. The constant temperature water pipeline comprises the boiled water outlet valve II and the cool boiled water valve at the water outlet nozzle II (62), the boiled water outlet valve II is connected with the hot water pipeline II, the cool boiled water valve is connected with the cool boiled water pipeline, and constant temperature water is obtained by controlling the proportion of hot water and cool boiled water. The filtering mechanism (1) comprises pre-filters I (11) and II (12) connected in parallel, tap water is pre-filtered through the pre-filters I (11) and II (12), and then filtered again through a RO membrane filter (14) by a booster pump (13), and the filtered water is post-filtered through a post-activated carbon (16). One end of the booster pump (13) is connected with the pre-filters I (11) and II (12) through an electromagnetic valve, and the other end of the booster pump (13) is connected with a pressure barrel (15) through a flushing valve, and the pressure barrel (15) is connected with a water outlet of the RO membrane filter (14) through a pipeline.

2. The multi-temperature instant hot and cold direct drinking water machine according to claim 1, characterized in that, A weak base filter element and a one-way valve are further arranged on the direct drinking water pipeline, the filtered water is connected to the one-way valve through the weak base filter element, and the one-way valve is connected to one water inlet of the combination valve through a pipeline.

3. The multi-temperature instant hot and cold direct drinking water machine according to claim 2, characterized in that, The ice water pipeline comprises an ice tank (31) with an evaporator arranged therein, the filtered water is divided into two parts, one part is connected with the evaporator, and the other part is cooled through the ice tank (31) and connected to the other water inlet of the combination valve.

4. The multi-temperature instant hot and cold direct drinking water machine according to claim 1, characterized in that, The water supplementing mechanism (2) comprises a water supplementing electromagnetic valve, a clean water tank (21) and a water supplementing heat exchanging pump, one end of the clean water tank (21) is connected with the filtering mechanism (1) through the water supplementing electromagnetic valve, one end of the clean water tank (21) is connected with a hot water pipe of the heat exchanging mechanism (4) through the water supplementing heat exchanging pump, and the hot water pipe is connected with the heating mechanism (5).

5. The multi-temperature instant hot and cold direct drinking water machine according to claim 1, wherein, ​ 6. The multi-temperature instant hot and cold direct drinking water machine according to claim 1, wherein, ​ 7. The multi-temperature instant hot and cold direct drinking water machine according to claim 1, wherein, The heating mechanism (5) of the hot water pipeline I and the hot water pipeline II comprises a hot water tank with a heating pipe, and the hot water tank is connected with the heat exchanger (41), the boiled water outlet valve I and the boiled water outlet valve II through pipelines respectively.

8. The multi-temperature instant hot and cold direct drinking water machine according to claim 1, characterized in that, The combination valve is a three-way valve, comprising two water inlets and one water outlet, the two water inlets are connected with the direct drinking water pipeline and the ice water pipeline respectively, and the water outlet is connected with the water outlet nozzle I (61) through the flow sterilizer.

9. The multi-temperature instant hot and cold direct drinking water machine according to claim 1, characterized in that, The heat exchange mechanism (4) comprises the heat exchanger (41), the lower part of the heat exchanger (41) is connected with the clean water tank (21) through the water replenishing heat exchange pump, the upper part of the heat exchanger (41) is connected with the water inlet and the water outlet of the hot water tank respectively, and the side part of the heat exchanger (41) is connected with the chilled boiled water valve through the chilled boiled water pump.

10. The multi-temperature instant hot and cold direct drinking water machine according to claim 9, characterized in that, The chilled boiled water pipeline comprises the chilled boiled water pump and the automatic water replenishing valve, the filtered water is connected with the chilled boiled water pump through the automatic water replenishing valve, and the chilled boiled water pump is connected with the chilled boiled water valve, the flow sterilizer and the water outlet nozzle II (62).

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