Table type water purifying and drinking machine with pure water vapor sterilization function

Abstract

The table type water purifying and drinking machine with the pure water vapor sterilization function comprises a filtering unit, a pure water tank and a heating body, the filtering unit comprises a filter element and a booster pump used for boosting water feeding of the filter element, and the pure water tank is provided with a pure water supplementing opening, a pure water outlet and a sterilization vapor inlet; a pure water filtering outlet of the filter element is communicated with the pure water replenishing port, a pure water outlet is communicated with a water inlet of the heating body through a water suction pump, and a water outlet of the heating body is communicated with the sterilization steam inlet, so that steam produced by heating pure water by the heating body can enter the pure water tank to realize sterilization. According to the table type water purifying and drinking machine, high-temperature steam physical sterilization is achieved on the pure water tank through steam, the steam high temperature can effectively kill various microorganisms such as bacteria, viruses, fungi and spores, the steam can permeate into tiny gaps in the pure water tank, comprehensive dead-corner-free sterilization is guaranteed, steam sterilization only depends on high temperature, chemical substances are not introduced, and the residue problem is avoided.

Description

Technical Field

[0001] This application relates to the field of water purifier technology, specifically to a countertop water purifier with pure water steam sterilization function. Background Technology

[0002] Countertop water purifiers are a common type of water purifier. Compared to floor-standing models, countertop models are smaller and take up less space, allowing them to be placed directly on a countertop for convenient use. A countertop water purifier mainly consists of a filtration unit, a heating unit, and a purified water tank. The filtration unit filters tap water into purified water, which can be heated by the heating unit or discharged directly from the machine or stored in the purified water tank for later use.

[0003] Since the purified water in a pure water tank is static, it is prone to bacterial and viral growth. Therefore, sterilization of the pure water tank is necessary to prevent the proliferation of bacteria and viruses. Currently, there are two main sterilization solutions for pure water tanks: one is to add a UV sterilization module to the pure water tank, but the UV lamps are easily damaged and need to be replaced regularly, making the operation cumbersome; the other is to use antibacterial materials or add antibacterial agents to the pure water tank, but these materials and agents may release chemicals into the water, affecting water quality safety, and the antibacterial effect may decrease as the materials age or are worn out. Some antibacterial materials are also expensive, increasing the cost of use. Utility Model Content

[0004] This application provides a countertop water purifier with pure water steam sterilization function to improve the technical problems of existing countertop water purifiers, which require regular replacement of ultraviolet lamps due to the addition of ultraviolet sterilization modules to the pure water tank, and increase the cost of use and affect water quality safety due to the addition of antibacterial materials or antimicrobial agents to the pure water tank.

[0005] The technical solution adopted in this application is as follows:

[0006] A countertop water purifier with pure water steam sterilization function includes a filtration unit, a pure water tank, and a heating element. The filtration unit includes a filter element and a booster pump for pressurizing water intake into the filter element. The pure water tank is provided with a pure water inlet, a pure water outlet, and a sterilization steam inlet. The pure water outlet of the filter element is connected to the pure water inlet. The pure water outlet is connected to the inlet of the heating element via a water pump. The outlet of the heating element is connected to the sterilization steam inlet, so that the steam generated by the heating element heating the pure water can enter the pure water tank to achieve sterilization.

[0007] In this technical solution, by connecting the outlet of the heating element to the sterilization steam inlet, the steam generated by the heating element when heating pure water to a boil or near-boiling state is introduced into the pure water tank. This allows the steam to achieve high-temperature physical sterilization of the pure water tank and its downstream water circuit. The high temperature of the steam effectively kills various microorganisms such as bacteria, viruses, fungi, and spores, and can also penetrate into the tiny crevices inside the pure water tank, ensuring comprehensive sterilization without dead angles. Moreover, steam sterilization relies solely on high temperature, without introducing chemical substances, thus avoiding residue problems. High-temperature steam can complete sterilization in a short time, improving sterilization efficiency, and the pure water tank can be quickly cooled after sterilization for immediate use. Furthermore, this solution only requires a steam flow pipeline connecting the outlet of the heating element and the sterilization steam inlet of the pure water tank, resulting in a simple structure and low cost. Therefore, sterilizing the pure water tank with high-temperature steam has significant advantages in terms of efficiency, safety, environmental friendliness, applicability, speed, and economy, and is particularly suitable for scenarios requiring chemical residue-free sterilization in the pure water tank described in this solution.

[0008] The countertop water purifier also includes a water level detection device for detecting and controlling the water level inside the pure water tank. The water level detection device can detect a first target water level and feed it back to the control unit of the countertop water purifier, so that the control unit controls the filter to stop replenishing water to the pure water tank. The sterilization steam inlet is located on the pure water tank at a position higher than the first target water level.

[0009] In this technical solution, the first target water level can be set to a high water level, which is the highest water level that the filter element replenishes to the pure water tank, so that the water level in the pure water tank is always maintained at or below the high water level. By making the sterilization steam inlet higher than the first target water level, pure water is prevented from flowing out through the sterilization steam inlet when the pure water tank is replenished to the first target water level. At the same time, it can also ensure that the steam generated by the heating element heating the pure water can smoothly enter and diffuse into the pure water tank during the steam sterilization process.

[0010] The water level detection device can detect a second target water level that is lower than the first target water level and feed it back to the control unit, so that the control unit controls the filter element to start replenishing water to the pure water tank. The control unit controls the heating element to output steam to the pure water tank by monitoring the number of times the second target water level is fed back by the water level detection device.

[0011] In this technical solution, the second target water level can be set to a low water level. The activation conditions of the sterilization function are controlled by the number of times the pure water in the pure water tank reaches the low water level, which facilitates control and achieves periodic and effective sterilization. Specifically, when the water level detection device feeds back the second target water level to the control unit a certain number of times, the control unit controls the heating element to heat the pure water and outputs the generated pure water steam to the pure water tank.

[0012] The top of the heating element is provided with a hot water outlet pipe extending vertically upwards. The outlet of the heating element is formed inside the hot water outlet pipe. A water-receiving fitting with a water-receiving cavity is sleeved on the outside of the hot water outlet pipe. The water-receiving fitting can guide water into the pure water tank.

[0013] In this technical solution, by setting up a leak-proof water catcher, when a leak occurs at the connection between the hot water outlet pipe and the downstream water circuit component due to a malfunction, the leaking water is caught by the leak-proof water catcher and guided into the pure water tank. This prevents the water from contacting the heating element and causing water leakage and damage to the wiring terminals on the heating element, thereby improving the safety of the equipment.

[0014] The leak-proof water receiving device includes a water receiving device body, which is a conical structure with an inner diameter that gradually decreases from top to bottom. The inner cavity of the conical structure is the water receiving cavity, and the conical wall of the conical structure is provided with a drainage pipe, which connects the water receiving cavity to the pure water tank.

[0015] In this technical solution, by setting the water receiving part body as a conical structure, it is not only convenient to receive water and reduce water splashing outward, but also helps to guide the received water towards the pure water tank through the drainage pipe.

[0016] The tabletop water purifier also includes a water outlet, and the water outlet of the heating element is selectively connected to the water outlet and the sterilization steam inlet.

[0017] In this technical solution, by selectively connecting the outlet of the heating element to the water outlet and the sterilization steam inlet, after the heating element heats the pure water, the steam can be directed to the sterilization steam inlet or the hot water can be directed to the water outlet, thereby achieving the switching between "normal water output" and "steam sterilization mode".

[0018] The outlet of the heating element is selectively connected to the water nozzle and the sterilizing steam inlet via a reversing valve. The outlet of the heating element is connected to the inlet of the reversing valve. The first outlet of the reversing valve is connected to the sterilizing steam inlet, and the second outlet of the reversing valve is connected to the water nozzle.

[0019] In this technical solution, the circuit control of the heating element switches between "normal water output" and "steam sterilization mode" through a reversing valve. The structure is simple and the control is reliable.

[0020] The pure water tank is provided with an outwardly protruding heating element positioning part and a reversing valve positioning part. The heating element is detachably installed on the heating element positioning part, and the reversing valve is detachably installed on the reversing valve positioning part.

[0021] In this technical solution, the pure water tank is equipped with a heating element positioning part and a reversing valve positioning part. The heating element and the reversing valve are integrated and installed in the pure water tank, which facilitates the pipeline connection and layout between the pure water tank, the heating element and the reversing valve, as well as disassembly and maintenance.

[0022] The countertop water purifier also includes a main support frame, which has an installation cavity for installing the filter element, and the pure water tank is formed on the main support frame.

[0023] In this technical solution, the pure water tank is integrated into the main support, resulting in a compact structure and simplified installation process.

[0024] The countertop water purifier also includes a raw water tank for supplying water to the filter element via the booster pump; the pure water tank is connected to a pure water return path and a pure water external drainage path through the pure water outlet, the pure water return path is connected to the raw water tank, the pure water external drainage path is connected to the outside of the countertop water purifier, a first drain valve is provided on the fluid path of the pure water return path, and a second drain valve is provided on the fluid path of the pure water external drainage path.

[0025] In this technical solution, a dual drainage system is formed. The pure water tank is connected to the raw water tank through the pure water return water path and the pure water external drainage path is connected to the outside of the machine body to realize the recycling or external discharge of pure water, which is controlled by the first drainage valve and the second drainage valve respectively.

[0026] The technical effects achieved by this application due to the adoption of the above technical solution are as follows: By connecting the outlet of the heating element to the sterilization steam inlet, the steam generated by the heating element when heating pure water to a boil or near-boiling state is introduced into the pure water tank. This allows the steam to achieve high-temperature steam physical sterilization of the pure water tank and its downstream water circuit. The high temperature of the steam can effectively kill various microorganisms such as bacteria, viruses, fungi, and spores, and can also penetrate into the tiny gaps inside the pure water tank, ensuring comprehensive sterilization without dead angles. Moreover, steam sterilization relies solely on high temperature and does not introduce chemical substances, avoiding residue problems. High-temperature steam can complete sterilization in a short time, improving sterilization efficiency, and the pure water tank can be quickly cooled after sterilization for immediate use. In addition, this solution only requires a steam delivery pipeline between the outlet of the heating element and the sterilization steam inlet of the pure water tank, resulting in a simple structure and low cost. Therefore, sterilizing the pure water tank with high-temperature steam has significant advantages in terms of efficiency, safety, environmental protection, applicability, speed, and economy, and is particularly suitable for scenarios requiring chemical residue-free sterilization of the pure water tank in this solution. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0028] Figure 1 This is a water circuit diagram of a tabletop water purifier with pure water steam sterilization function provided in an embodiment of this application;

[0029] Figure 2 Assembly of the countertop water purifier with pure water steam sterilization function provided in the embodiments of this application Figure 1 It should be noted that it only shows the assembly diagram of some parts of the countertop water purifier;

[0030] Figure 3 Assembly of the countertop water purifier with pure water steam sterilization function provided in the embodiments of this application Figure 2 It should be noted that it only shows the assembly diagram of some parts of the countertop water purifier;

[0031] Figure 4 This is a cross-sectional view of the leak-proof water connection device provided in the embodiment of this application.

[0032] List of components and reference numerals:

[0033] 1 Pure water tank, 11 Pure water inlet, 12 Pure water outlet, 13 Sterilization steam inlet, 14 Heating element positioning part, 15 Reversing valve positioning part;

[0034] 2 heating elements, 21 hot water outlet pipes;

[0035] 3 filter elements;

[0036] 4. Booster pumps;

[0037] 5 water pumps;

[0038] 6. Water level communication device;

[0039] 7 Leaking water fitting, 71 Water fitting body, 72 Drainage pipe;

[0040] 8 water outlets;

[0041] 9. Reversing valve;

[0042] 10 main supports;

[0043] 20 raw water tanks;

[0044] 30 Pure water return circuit;

[0045] 40 Pure water external drainage channel;

[0046] 50 First drain valve;

[0047] 60 Second drain valve. Detailed Implementation

[0048] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0049] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0050] Furthermore, it should be understood in the description of this application that the terms "upper," "lower," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," "lateral," and "longitudinal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not 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 application.

[0051] In this application, unless otherwise expressly 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, an electrical connection, or a communication 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. 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.

[0053] In the embodiments of this application, a countertop water purifier with pure water steam sterilization function is provided. For ease of explanation and understanding, the following content provided in this application is based on the illustrated product structure. Of course, those skilled in the art will understand that the above structure is only a specific example and illustrative illustration, and does not constitute a specific limitation on the technical solution provided in this application.

[0054] like Figures 1 to 4As shown, the tabletop water purifier with pure water steam sterilization function provided in this application includes a filtration unit, a pure water tank 1, and a heating element 2. The filtration unit includes a filter element 3 and a booster pump 4 for pressurizing water into the filter element 3. The pure water tank 1 is provided with a pure water inlet 11, a pure water outlet 12, and a sterilization steam inlet 13. The pure water filtration outlet of the filter element 3 is connected to the pure water inlet 11. The pure water outlet 12 is connected to the inlet of the heating element 2 through a water pump 5. The outlet of the heating element 2 is connected to the sterilization steam inlet 13, so that the steam generated by the heating element 2 heating the pure water can enter the pure water tank 1 to achieve sterilization.

[0055] The booster pump 4 is used to pressurize and deliver raw water to the filter element 3. The filter element 3 filters the raw water into pure water. Since the pure water filtration outlet of the filter element 3 is connected to the pure water inlet 11, the pure water produced by the filter element 3 can be delivered to the pure water tank 1 for later use, facilitating the water pump 5 to draw water into the heating element 2 for heating. By connecting the outlet of the heating element 2 to the sterilization steam inlet 13, the steam generated by the heating element 2 when heating the pure water to a boil or near-boiling state is introduced into the pure water tank 1. This allows the steam to achieve high-temperature steam physical sterilization of the pure water tank 1 and the water circuit at the rear of the pure water tank 1. The high temperature of the steam can effectively kill various microorganisms such as bacteria, viruses, fungi, and spores. It can also penetrate into the tiny gaps inside the pure water tank 1 to ensure comprehensive sterilization without dead angles. Moreover, steam sterilization relies only on high temperature and does not introduce chemical substances, avoiding residue problems. High-temperature steam can complete sterilization in a short time, improving sterilization efficiency. After sterilization, the pure water tank 1 can be quickly cooled for immediate use. Furthermore, this solution only requires a steam flow pipeline between the outlet of the heating element 2 and the sterilization steam inlet 13 of the pure water tank 1, resulting in a simple structure and low cost. Therefore, sterilizing the pure water tank 1 with high-temperature steam has significant advantages in terms of efficiency, safety, environmental friendliness, applicability, speed, and economy, and is especially suitable for the scenario where the pure water tank 1 requires chemical residue-free sterilization.

[0056] In a preferred embodiment of this application, the countertop water purifier further includes a water level detection device for detecting and controlling the water level inside the pure water tank 1. The water level detection device can detect a first target water level and feed it back to the control unit of the countertop water purifier, so that the control unit controls the filter element 3 to stop replenishing water to the pure water tank 1. The sterilization steam inlet 13 is positioned above the first target water level on the pure water tank 1. In this technical solution, the first target water level can be set to a high water level, that is, the highest water level at which the filter element 3 replenishes water to the pure water tank 1, so that the water level in the pure water tank 1 is always maintained at or below the high water level. By making the sterilization steam inlet 13 higher than the first target water level, pure water is prevented from flowing out through the sterilization steam inlet 13 when the pure water tank 1 is replenished to the first target water level. At the same time, it can also ensure that the steam generated by the heating element 2 heating the pure water can smoothly enter and diffuse into the pure water tank 1 during the steam sterilization process.

[0057] Furthermore, the water level detection device can detect a second target water level lower than the first target water level and feed it back to the control unit. This allows the control unit to control the filter element 3 to replenish water to the pure water tank 1. The control unit controls the heating element 2 to output steam to the pure water tank 1 by monitoring the number of times the second target water level is detected by the water level detection device. In this technical solution, the second target water level can be set to a low level. The activation condition of the sterilization function is controlled by the number of times the pure water in the pure water tank 1 reaches the low water level, facilitating control and achieving periodic and effective sterilization. Specifically, when the water level detection device feeds back the second target water level to the control unit a certain number of times, the control unit controls the heating element 2 to heat the pure water and outputs the generated pure water steam to the pure water tank 1. Figure 1 As shown, the water level detection device can be a water level communicator 6 connected to the pure water tank 1. Water level detection in the pure water tank 1 is achieved through a float within the water level communicator 6 and an identification element used to identify the float's floating position. In other embodiments, the water level detection device can also be a water level electrode, etc.

[0058] As a preferred embodiment of this application, such as Figure 2 and Figure 3As shown, the top of the heating element 2 is provided with a vertically upward-extending hot water outlet pipe 21. The water outlet of the heating element 2 is formed inside the hot water outlet pipe 21. A leak-proof water receiving component 7 with a water receiving cavity is sleeved on the outside of the hot water outlet pipe 21, which can guide water to the pure water tank 1. Those skilled in the art will understand that, due to various factors such as processing errors, assembly errors, and the difficulty in maintaining constant water pressure in the water circuit, the connection point between the hot water outlet pipe 21 of the heating element 2 and downstream water circuit components (such as water circuit connectors) is often a location with a high risk of leakage. Although some water purifiers can improve the above problems to some extent by setting a sealing ring between the two, the sealing performance may be lost due to the failure of the sealing ring, resulting in water leakage at the connection point. Once leakage occurs, water flows downward to the heating element 2, easily causing water to come into contact with and leak electricity or even damage many terminals on the heating element 2. Therefore, in this technical solution, by setting up a water leakage catcher 7, when the connection between the hot water outlet pipe 21 and the downstream water circuit component leaks due to a fault, the leaking water is caught by the water leakage catcher 7. The water caught by the water leakage catcher 7 is guided into the pure water tank 1, avoiding water contact with the heating element 2 and causing water leakage and damage to the wiring terminals on the heating element 2, thus improving the safety of equipment use.

[0059] Regarding the structure of the leak-proof water inlet 7, in a preferred embodiment, as follows: Figure 4 As shown, the leak-proof water receiving component 7 includes a water receiving component body 71. The water receiving component body 71 is a conical structure with an inner diameter that gradually decreases from top to bottom. The inner cavity of the conical structure is the water receiving cavity. The conical wall of the conical structure is provided with a drainage pipe 72, which connects the water receiving cavity to the pure water tank 1. In this technical solution, by setting the water receiving component body 71 as a conical structure, it not only facilitates water receiving and reduces water splashing outwards, but also helps to guide the received water towards the pure water tank 1 through the drainage pipe 72. More preferably, the leak-proof water receiving component 7 can be made of silicone. Silicone has good high-temperature resistance and elastic deformation ability, which can well cope with leaked hot water, and can also achieve a tight fit with the hot water outlet pipe 21 to prevent leaked water from flowing between the water receiving component body 71 and the hot water outlet pipe 21.

[0060] As a preferred embodiment of this application, such as Figures 1 to 3 As shown, the countertop water purifier also includes a water outlet 8, and the water outlet of the heating element 2 is selectively connected to the water outlet 8 and the sterilization steam inlet 13. In this technical solution, by selectively connecting the water outlet of the heating element 2 to the water outlet 8 and the sterilization steam inlet 13, after the heating element 2 heats pure water, it can choose to direct steam to the sterilization steam inlet 13 or direct hot water to the water outlet 8, thereby achieving the switching between "normal water output" and "steam sterilization mode".

[0061] Regarding the method of selectively connecting the outlet of the heating element 2 to the water outlet 8 and the sterilization steam inlet 13, in a preferred embodiment, such as... Figures 1 to 3 As shown, the outlet of the heating element 2 is selectively connected to the water outlet 8 and the sterilizing steam inlet 13 via a reversing valve 9. The outlet of the heating element 2 is connected to the inlet of the reversing valve 9, the first outlet of the reversing valve 9 is connected to the sterilizing steam inlet 13, and the second outlet of the reversing valve 9 is connected to the water outlet 8. In this technical solution, the reversing valve 9 is used to switch the heating element 2 between "normal water output" and "steam sterilization mode" under circuit control, resulting in a simple structure and reliable control. In other embodiments, the connection between the outlet of the heating element 2 and the water outlet 8 and the sterilizing steam inlet 13 can be selectively achieved in a manner different from the reversing valve 9. For example, the heating element 2 can be connected to the water outlet 8 and the sterilizing steam inlet 13 via two separate pipelines, each with a control valve, and one of the two control valves can be opened selectively.

[0062] Furthermore, such as Figure 3 As shown, the pure water tank 1 is provided with an outwardly protruding heating element positioning part 14 and a reversing valve positioning part 15. The heating element 2 is detachably installed on the heating element positioning part 14, and the reversing valve 9 is detachably installed on the reversing valve positioning part 15. In this technical solution, the pure water tank 1 is provided with a heating element positioning part 14 and a reversing valve positioning part 15. The heating element 2 and the reversing valve 9 are integrated and installed in the pure water tank 1, which facilitates the pipeline connection and arrangement between the pure water tank 1, the heating element 2, and the reversing valve 9, as well as disassembly and maintenance. Specifically, both the heating element positioning part 14 and the reversing valve positioning part 15 can be constructed as protruding posts protruding outward from the tank wall of the pure water tank 1. The heating element 2 and the reversing valve 9 are respectively detachably installed on the protruding posts by screws.

[0063] As a preferred embodiment of this application, such as Figure 2 and Figure 3 As shown, the countertop water purifier also includes a main support frame 10, which has a mounting cavity for installing the filter element 3. The pure water tank 1 is formed on the main support frame 10. In this technical solution, the pure water tank 1 is integrated into the main support frame 10, resulting in a compact structure and simplified installation process.

[0064] As a preferred embodiment of this application, such as Figure 1As shown, the countertop water purifier also includes a raw water tank 20 for supplying water to the filter element 3 via the booster pump 4; the pure water tank 1 is connected to a pure water return path 30 and a pure water external drainage path 40 via the pure water outlet 12. The pure water return path 30 is connected to the raw water tank 20, and the pure water external drainage path 40 is connected to the outside of the countertop water purifier. A first drain valve 50 is provided on the fluid path of the pure water return path 30, and a second drain valve 60 is provided on the fluid path of the pure water external drainage path 40. In this technical solution, a dual drainage system is formed for the pure water tank 1. For example, when it is necessary to drain the water in the pure water tank 1 for sterilization, the pure water in the pure water tank 1 can be drained by opening at least one of the first drain valve 50 and the second drain valve 60. The pure water tank 1 is connected to the raw water tank 20 via a pure water return path 30 and to the outside of the machine via a pure water external drainage path 40, realizing the recycling or external discharge of pure water. These are controlled by a first drain valve 50 and a second drain valve 60, respectively. Preferably, the first drain valve 50 can be an electromagnetic drain valve, and the second drain valve 60 can be a manual drain valve, enabling both circuit-controlled pure water return and manual control of pure water external discharge from the pure water tank 1.

[0065] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0066] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0067] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A table type purifier and drinker with pure water steam sterilization function, characterized in that, The device comprises a filter unit, a pure water tank and a heating body, the filter unit comprises a filter core and a booster pump for boosting water into the filter core, the pure water tank is provided with a pure water supplement outlet, a pure water outlet and a sterilization steam inlet, the pure water filtering outlet of the filter core is communicated with the pure water supplement outlet, the pure water outlet is communicated with the water inlet of the heating body through a water pump, and the water outlet of the heating body is communicated with the sterilization steam inlet, so that the steam generated by the heating body can enter the pure water tank to realize sterilization.

2. The table type pure water machine with sterilization function according to claim 1, characterized in that, the table type pure water machine further comprises a water level detection device for detecting and controlling the water level in the pure water tank, the water level detection device can detect a first target water level and feed back to the control unit of the table type pure water machine, so that the control unit controls the filter core to stop supplementing water to the pure water tank, and the position of the sterilization steam inlet on the pure water tank is higher than the first target water level.

3. The table type pure water machine with sterilization function according to claim 2, characterized in that, the water level detection device can detect a second target water level lower than the first target water level and feed back to the control unit, so that the control unit controls the filter core to start supplementing water to the pure water tank, and the control unit controls the heating body to output steam to the pure water tank by monitoring the number of times of the second target water level fed back by the water level detection device.

4. The table type pure water machine with sterilization function according to claim 1, characterized in that, the top of the heating body is provided with a hot water outlet pipe vertically extending upwards, the water outlet of the heating body is formed in the hot water outlet pipe, and a water leakage receiving element with a water receiving cavity is sleeved outside the hot water outlet pipe, and the water leakage receiving element can drain water into the pure water tank.

5. The table type pure water machine with sterilization function according to claim 4, characterized in that, the water leakage receiving element comprises a water receiving element body, the water receiving element body is provided as a conical structure body with a gradually decreasing inner diameter from top to bottom, an inner cavity of the conical structure body is the water receiving cavity, and a drainage pipe is arranged on the conical wall of the conical structure body, and the drainage pipe communicates the water receiving cavity with the pure water tank.

6. The table type pure water machine with sterilization function according to claim 1, characterized in that, the table type pure water machine further comprises a water outlet nozzle, and the water outlet of the heating body selectively communicates with the water outlet nozzle and the sterilization steam inlet.

7. The table type pure water machine with sterilization function according to claim 6, characterized in that, the water outlet of the heating body selectively communicates with the water outlet nozzle and the sterilization steam inlet through a reversing valve, the water outlet of the heating body is communicated with an inlet port of the reversing valve, a first outlet port of the reversing valve is communicated with the sterilization steam inlet, and a second outlet port of the reversing valve is communicated with the water outlet nozzle.

8. The table type pure water machine with sterilization function according to claim 7, characterized in that, The pure water tank is provided with outwardly protruding heating body positioning part and reversing valve positioning part, the heating body is detachably installed on the heating body positioning part, and the reversing valve is detachably installed on the reversing valve positioning part.

9. The table type purifier and drinker with pure water steam sterilization function according to any one of claims 1-8, characterized in that, The table type purifier and drinker further comprises a main support provided with an installation cavity for installing the filter element, and the pure water tank is formed on the main support.

10. The table type purifier and drinker with pure water steam sterilization function according to any one of claims 1-8, characterized in that, The table type purifier and drinker further comprises a raw water tank for supplying water to the filter element through the booster pump; The pure water tank is connected with pure water backflow waterway and pure water external discharge waterway through the pure water outlet respectively, the pure water backflow waterway is connected with the raw water tank, the pure water external discharge waterway is connected with the outside of the table type purifier and drinker, a first drain valve is arranged on the fluid path of the pure water backflow waterway, and a second drain valve is arranged on the fluid path of the pure water external discharge waterway.

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