Wall-mounted pipeline water dispenser

By introducing a water purification tank, a buffer water tank and multiple sterilizers into the wall-mounted pipeline water dispenser, combined with a micro-movement pump and a thick film heater, the problem of bacteria exceeding the standard is solved, ensuring the safety of drinking water and improving the user experience.

CN222129929UActive Publication Date: 2024-12-10NINGBO FOTILE KITCHEN WARE CO LTD
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Patent Information

Application Number
CN202420797499.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-17
Publication Date
2024-12-10
Estimated Expiration
2034-04-17

AI Technical Summary

Technical Problem

The existing wall-mounted pipeline water dispensers lack sterilization systems, which leads to excessive bacterial standards when water is discharged, affecting drinking water safety.

Method used

A wall-mounted pipeline water dispenser is designed, including a water purification tank, a buffer water tank and multiple sterilizers. It is electrically connected by a controller, and a water is sterilized by an LED or UV sterilizer, and a micro-moving pump and Thick film heater ensures evenly heat and sterilization of water temperature.

Benefits of technology

It effectively solves the problem of bacteria exceeding the standard and ensures the safety of drinking water. At the same time, the addition of the buffer water tank makes the water effluent more stable, improving the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a wall-mounted pipeline water dispenser. The wall-mounted pipeline water dispenser comprises a first water inlet, a water purification tank, a first sterilizer, a buffer water tank, a first water outlet and a controller, the first water inlet is connected with the water purifying tank through a first pipeline; a second water inlet of the buffer water tank is connected with a water purifying tank through a second pipeline, and a second water outlet of the buffer water tank is connected with the first water outlet; a first sterilizer is arranged in the buffer water tank; and the controller is electrically connected with the first sterilizer. The buffer water tank and the sterilizer are additionally arranged behind the pipeline, so that purified water is further sterilized, and the problem that bacteria at the water outlet exceed the standard is solved. The safety of drinking water is ensured, and the use experience of a user is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of water treatment, and in particular to a wall-mounted pipeline drinking fountain. Background Art

[0002] As water purifiers are updated, more and more water purifiers are updated to large-flow water purifiers without barrels. However, the pipeline water dispensers on the market cannot adapt to this water purification system. The existing pipeline water dispensers do not have a sterilization system, and some bacteria are easily bred in the water tank, affecting the safety of drinking water. Without a sterilization system, bacteria will grow in the pipes, and the warm water will cause excessive bacteria, which seriously affects the safety of drinking water. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defect that there is no sterilization system in the pipeline of the wall-mounted pipeline drinking fountain in the prior art, and the bacteria will exceed the standard when the water comes out, and provide a wall-mounted pipeline drinking fountain.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] Provided is a wall-mounted pipeline drinking water machine, comprising: a first water inlet, a clean water tank, a first sterilizer, a buffer water tank, a first water outlet and a controller;

[0006] The first water inlet is connected to the clean water tank through a first pipeline;

[0007] The second water inlet of the buffer water tank is connected to the clean water tank through a second pipeline, and the second water outlet of the buffer water tank is connected to the first water outlet;

[0008] A first sterilizer is provided inside the buffer water tank;

[0009] The controller is electrically connected to the first sterilizer.

[0010] Optionally, a second sterilizer is provided inside the clean water tank, and the controller is electrically connected to the second sterilizer.

[0011] Optionally, the second pipeline is provided with a heating device;

[0012] The heating device comprises a micro pump and a thick film heater;

[0013] One end of the micro pump is connected to the clean water tank, and the other end is connected to the third water inlet of the thick film heater;

[0014] The third water outlet of the thick film heater is connected to the first water inlet of the buffer water tank;

[0015] The controller is electrically connected to the thick film heater and the micro pump respectively.

[0016] Optionally, the third water outlet of the thick film heater is provided with a temperature sensor, and the controller is electrically connected to the temperature sensor; the temperature sensor is used to measure the water temperature of the third water outlet of the thick film heater and send the water temperature to the controller.

[0017] Optionally, a first water level sensor is provided inside the buffer water tank, the controller is electrically connected to the first water level sensor, and the first water level sensor sends a first water level to the controller.

[0018] Optionally, the first water outlet is provided with a first solenoid valve, and the controller is electrically connected to the first solenoid valve;

[0019] Optionally, the first pipeline is provided with a pre-filter and a second solenoid valve;

[0020] The first water inlet is connected to the fourth water inlet of the pre-filter, and the fourth water outlet of the pre-filter is connected to the clean water tank through the second solenoid valve;

[0021] The controller is electrically connected to the second solenoid valve.

[0022] Optionally, a second water level sensor is provided inside the clean water tank, the controller is electrically connected to the second water level sensor, and the second water level sensor sends a second water level to the controller;

[0023] Optionally, a mechanical float valve is provided inside the clean water tank, and the controller is electrically connected to the mechanical float valve.

[0024] Optionally, the clean water tank is connected to the second water outlet via a fourth pipeline, and the fourth pipeline is provided with a third solenoid valve; the controller is electrically connected to the third solenoid valve.

[0025] Optionally, a drain outlet is provided at the bottom of the clean water tank, and a fourth solenoid valve is provided at the drain outlet;

[0026] The controller is connected to the fourth solenoid valve.

[0027] Optionally, the clean water tank is provided with a first exhaust port;

[0028] Optionally, the clean water tank is provided with a second exhaust port;

[0029] Optionally, the thick film heater is provided with a thick film heater exhaust port, and the thick film heater exhaust port is connected to the second exhaust port.

[0030] On the basis of being in accordance with the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present disclosure.

[0031] The positive progress of the present disclosure is that a buffer water tank and a sterilizer are added after the pipeline to further sterilize the purified water, solving the problem of excessive bacteria at the water outlet and ensuring the safety of drinking water. At the same time, the addition of the buffer water tank makes the water outlet more stable when the user takes water, without spraying, and also improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of a wall-mounted pipeline drinking fountain provided by an exemplary embodiment of the present disclosure is shown in FIG.

[0033] Figure 2 A schematic structural diagram of a wall-mounted pipeline drinking water dispenser is provided as another exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0034] The present disclosure is further described below by way of examples, but the present disclosure is not limited to the scope of the examples.

[0035] Prefixes such as "first" and "second" are used in the embodiments of the present disclosure only to distinguish different description objects, and have no limiting effect on the position, order, priority, quantity or content of the described objects. The use of prefixes such as ordinal numbers to distinguish description objects in the embodiments of the present disclosure does not constitute a limitation on the described objects. For the statement of the described objects, please refer to the description in the context of the claims or embodiments, and no unnecessary limitation should be constituted due to the use of such prefixes. In addition, in the description of the present embodiment, unless otherwise specified, the meaning of "plurality" is two or more.

[0036] Figure 1 A schematic structural diagram of a wall-mounted pipeline drinking fountain is provided for an exemplary embodiment of the present disclosure, and the wall-mounted pipeline drinking fountain comprises: a first water inlet 1, a clean water tank 2, a buffer water tank 3, a first sterilizer 4, a first water outlet 5 and a controller; the first water inlet 1 is connected to the clean water tank 2 through a first pipeline; the second water inlet of the buffer water tank 3 is connected to the clean water tank 2 through a second pipeline, and the second water outlet of the buffer water tank 3 is connected to the first water outlet 5; a first sterilizer 4 is provided inside the buffer water tank 3; and the controller is electrically connected to the first sterilizer 4.

[0037] Specifically, the pipeline water dispenser is an instant hot water dispenser used in conjunction with a water purifier, which simplifies the steps of drinking water. One end of the pipeline machine is connected to a reverse osmosis water purifier to obtain a filtered water source. The purified water treated by the filtration system enters the wall-mounted pipeline water dispenser through the first water inlet 1, and the purified water will be stored in the clean water tank 2. The second water inlet of the buffer water tank 3 is connected to the clean water tank 2 through a second pipeline, and the purified water in the clean water tank 2 will enter the buffer water tank 3. A first sterilizer 4 is provided inside the buffer water tank 3. The controller sends a start command to the first sterilizer 4, and the first sterilizer 4 in the startup state sterilizes the purified water in the buffer water tank 3. After the sterilization treatment by the first sterilizer 4, the purified water flows out through the first water outlet 5. Among them, the first sterilizer can be an LED sterilizer or a UV sterilizer.

[0038] In this embodiment, a buffer water tank and a sterilizer are added after the pipeline to further sterilize the purified water, solving the problem of excessive bacteria at the water outlet and ensuring the safety of drinking water. At the same time, the addition of the buffer water tank makes the water outlet more stable when the user takes water, without spraying, and also improves the user experience.

[0039] Figure 2 A schematic diagram of the structure of a wall-mounted pipeline drinking fountain is provided for another exemplary embodiment of the present disclosure. A second sterilizer 7 is provided inside the clean water tank, and a controller is electrically connected to the second sterilizer 7.

[0040] The controller is used to control the opening and closing of the second sterilizer 7. Specifically, the controller sends an opening instruction to the second sterilizer 7, and the second sterilizer 7 receives the opening instruction and starts. The second sterilizer 7 in the starting state can sterilize water; the controller sends a closing instruction to the second sterilizer 7, and the second sterilizer 7 receives the closing instruction and shuts down. The second sterilizer 7 in the closed state no longer sterilizes water. The second sterilizer can be an LED sterilizer or a UV sterilizer.

[0041] In this embodiment, a sterilizer is added to the clean water tank to solve the problem of excessive bacteria in the clean water in the clean water tank for a long time. Combined with the sterilizer in the buffer water tank, secondary sterilization of the water is achieved, which can further ensure the safety of drinking water.

[0042] In one embodiment, the second pipeline is provided with a heating device; the heating device includes a micro pump 8 and a thick film heater 9; one end of the micro pump 8 is connected to the clean water tank 2, and the other end is connected to the third water inlet of the thick film heater 9; the third water outlet of the thick film heater 9 is connected to the first water inlet of the buffer water tank 3; the controller is electrically connected to the thick film heater 9 and the micro pump 8 respectively.

[0043] Specifically, a heating device is provided between the clean water tank 2 and the buffer water tank 3, which is used to heat the clean water in the clean water tank. The heating device includes a micro pump 8 and a thick film heater 9. Among them, the thick film heater 9 is a new type of heating body, which uses stainless steel, glass or ceramic as a substrate, and then adopts a thick film screen printing process, combined with an insulating medium or resistor to achieve the purpose of heating water. It can quickly heat the clean water flowing through, and is particularly excellent in temperature control. It is safe and stable to use, and can achieve water-electricity separation. The water inlet of the micro pump 8 is connected to the water outlet of the clean water tank 2, and the water outlet of the micro pump 8 is connected to the water inlet of the thick film heater 9. The clean water in the clean water tank 2 passes through the micro pump 8 and then enters the thick film heater 9. The controller is used to control the micro pump 8, which mainly provides power to suck out the clean water in the clean water tank 2 and transport it to the thick film heater 9. When the user needs to take hot water, the controller turns on the micro pump 8 and the thick film heater 9 to heat the clean water flowing through the thick film heater and flow it into the buffer water tank 3. The buffer water tank 3 can quickly mix the water vapor generated by the thick film heater after heating, making the water outlet more stable.

[0044] In this embodiment, the clean water in the clean water tank can be stably transported to the thick film heater for heating through the action of the micro pump, and the uniformity of heating is also ensured. The thick film heater can heat the clean water quickly, and is highly safe, energy-saving and environmentally friendly.

[0045] In one embodiment, the water outlet of the thick film heater 9 is connected to one end of the third sterilizer, and the other end of the third sterilizer is connected to the water inlet of the buffer water tank 3 .

[0046] Specifically, the water outlet of the thick film heater 9 is provided with a mounting hole for fixing the sterilizer, which is used to fix the third sterilizer. The third sterilizer can be a flow sterilizer. After the heated purified water flows out through the water outlet of the thick film heater 9, it can be sterilized by the third sterilizer. After the sterilized purified water enters the buffer water tank 3, it flows out through the first water outlet 5.

[0047] In this embodiment, a third sterilizer is added after the thick film heater, which can sterilize the heated purified water in real time to ensure the safety of the output water.

[0048] In one embodiment, a temperature sensor is provided at the second water outlet of the thick film heater 9, and the controller is electrically connected to the temperature sensor 10; the temperature sensor 10 is used to measure the water temperature at the second water outlet of the thick film heater 9, and send the water temperature to the controller so that the controller adjusts the power of the thick film heater according to the water temperature.

[0049] In one embodiment, the wall-mounted pipeline drinking fountain further includes a display screen for displaying the water temperature of the second water outlet in real time, and can also display the water intake temperature set by the user.

[0050] Specifically, the third water outlet of the thick film heater 9 is provided with a temperature sensor 10 for sending the temperature of the second water outlet to the controller. The controller displays the temperature of the second water outlet on the display screen. The controller also adjusts the heating power of the thick film heater 9 according to the temperature of the second water outlet.

[0051] In one embodiment, the first water outlet 5 is provided with a first solenoid valve 6, and the controller is electrically connected to the first solenoid valve 6; the first solenoid valve 6 opens and closes the first water outlet 5 according to instructions issued by the controller.

[0052] Specifically, when the user takes water with a temperature greater than 70°C, the system determines it as a hot water taking signal, the micro pump is turned on, and the thick film heater 9 is turned on at the same time, and the thick film heater 9 is controlled according to the set water taking temperature. The temperature sensor 10 detects the water temperature in real time and sends the temperature to the controller, and the display screen displays the real-time water temperature at this time. The controller sends an opening instruction to the first solenoid valve 6, the first solenoid valve 6 is opened, and the first water outlet 5 discharges hot water.

[0053] When the user takes water with a temperature lower than 70°C, the system determines it as a warm water signal, the micro pump is turned on, the temperature sensor 10 detects the water temperature in real time, and sends the temperature to the controller, and the display screen displays the real-time water temperature. The first sterilizer 4 is turned on to sterilize the warm water entering the buffer water tank 3. When the sterilization is completed, the controller sends an opening instruction to the first solenoid valve 6, the first solenoid valve 6 is turned on, and the first water outlet 5 discharges warm water.

[0054] The above-mentioned hot water taking signal and warm water taking signal can be generated by, but is not limited to, triggering a button or control on the wall-mounted pipeline water dispenser.

[0055] In this embodiment, the controller controls the thick film heater to adjust the temperature of the water outlet. The temperature sensor can monitor in real time and display it through the display module. According to the two water extraction modes, when taking hot water, since the water has been heated to a relatively high temperature (for example, when the water temperature is greater than 70°C), the purified water has been sterilized once. At this time, the first sterilizer can be turned on and the water can be directly discharged through the first water outlet, which not only ensures the safety of the water outlet, but also reduces the waiting time for users. When taking warm water, the incompletely heated water can be sterilized through the first sterilizer, thereby ensuring the safety of the water outlet.

[0056] In one embodiment, a first water level sensor 11 is disposed inside the buffer water tank 3 , the controller is electrically connected to the first water level sensor 11 , and the first water level sensor 11 sends the first water level to the controller.

[0057] Specifically, a first water level sensor 11 is provided in the buffer water tank 3, and the first water level sensor 11 sends the water level information in the buffer water tank 3 to the controller. The first water level sensor 11 can be set at 3 / 4 of the height of the water tank. When the first water level sensor 11 detects the liquid level in the buffer water tank, the first sterilizer 4 is turned on at the same time to sterilize the warm water at this time. The first water level sensor 11 can be a water level probe.

[0058] In this embodiment, the first water level sensor can determine when to start the first sterilizer and can monitor the water level in the buffer water tank in real time. The sterilizer will be started only when the water level reaches a certain height (such as 3 / 4 of the water tank height), thereby reducing energy waste.

[0059] In one embodiment, the first pipeline is provided with a pre-filter 12 and a second solenoid valve 13. The first water inlet 1 is connected to the fourth water inlet of the pre-filter 12, and the fourth water outlet of the pre-filter 12 is connected to the clean water tank 2 through the second solenoid valve 13. The controller is electrically connected to the second solenoid valve 13.

[0060] Specifically, after the external purified water enters through the first water inlet 1, it will be further filtered through the pre-filter 12, which is a composite coarse filter element composed of a carbon rod filter element and a stainless steel filter net. The function of the carbon rod is mainly to further adsorb the purified water after the host is filtered. Because the host may be very far away from the pipeline machine, the impurities and odors in the pipeline need to be adsorbed and intercepted by the carbon rod filter element and the stainless steel filter net. The controller is used to control the opening and closing of the second solenoid valve 13. When the controller sends an opening command to the second solenoid valve 13, the clean water tank 2 will be replenished with water.

[0061] Specifically, a pre-filter is added after the first water inlet, which can adsorb and intercept impurities and odors in the pipeline, thereby ensuring the purity of the clean water entering the clean water tank.

[0062] In one embodiment, a second water level sensor 14 is provided inside the clean water tank 2, the controller is electrically connected to the second water level sensor 14, and the second water level sensor 14 sends the second water level to the controller.

[0063] Specifically, a second water level sensor 14 is provided on the side wall of the clean water tank 2. The second water level sensor includes a high water level probe and a low water level probe. The second water level sensor 14 can monitor the water level of the clean water tank 2 in real time. First, after the machine is powered on, it will detect whether the water level in the clean water tank is the height preset by the system, that is, the second water level sensor 14 monitors in real time whether the water level is greater than the low water level (such as 1 / 5 of the height of the clean water tank). If not, the controller opens the second solenoid valve 13 to replenish water into the clean water tank 2. If the second water level sensor 14 detects a high water level (such as 4 / 5 of the height of the clean water tank), the water replenishment is stopped or not. Afterwards, if a water fetching operation is performed, the liquid level of the clean water tank 2 will also be monitored. If the second water level sensor 14 detects that the water level in the clean water tank 2 is less than the low water level, the water fetching operation will be performed on the clean water tank 2 first; when the second water level sensor 14 detects that the water level in the clean water tank 2 is greater than the low water level, the micro pump 8 will be turned on to perform a water fetching operation. When the second water level sensor 14 detects that the water level in the clean water tank 2 is greater than or equal to the high water level, the second solenoid valve 13 will be closed to stop water replenishment.

[0064] In this embodiment, the water level in the clean water tank can be monitored in real time through the second water level sensor, and water replenishment can be automatically controlled, so that water replenishment does not need to be frequently started and stopped, thereby improving the stability of the system.

[0065] In one embodiment, a mechanical float valve 15 is provided inside the clean water tank 2 , and the controller is electrically connected to the mechanical float valve 15 .

[0066] Specifically, a mechanical float valve is provided at the water inlet of the clean water tank 2. The mechanical float valve 15 is a buoyancy valve that is opened and closed by a float. When the mechanical float valve 15 fails at a high water level of the liquid level switch, if the second solenoid valve 13 continues to be opened to continue to replenish water to the clean water tank, the mechanical float valve 15 seals the water inlet by buoyancy. At this time, the controller can control the second solenoid valve 13 to close and give an alarm prompt.

[0067] In this embodiment, when the second water level sensor fails, the mechanical float valve can further ensure the water level of the clean water tank, thereby improving the stability of the system.

[0068] In one embodiment, the clean water tank 2 is connected to the second water outlet 16 via a fourth pipeline, and the fourth pipeline is provided with a third solenoid valve 17 ; the controller is electrically connected to the third solenoid valve 17 .

[0069] Specifically, the clean water tank 2 is further provided with a second water outlet 16, which can be specifically set to a position below the low water level. The controller is used to control the opening and closing of the third solenoid valve 17. After receiving a user instruction, the controller sends an opening instruction to the third solenoid valve 17, and the third solenoid valve 17 is opened. The user can obtain clean water at room temperature through the second water outlet 16.

[0070] In one embodiment, a drain outlet 18 is provided at the bottom of the clean water tank 2 , and a fourth solenoid valve 19 is provided at the drain outlet 18 ; the controller is connected to the fourth solenoid valve 19 .

[0071] Specifically, a drain port 18 is provided at the bottom of the clean water tank 2, and a fourth solenoid valve 19 is provided at the drain port 18. When the system detects that it has not been used for a long time (preset to be 48 hours), when the time is greater than 48 hours, the system enters the emptying mode, and the controller sends an opening command to the fourth solenoid valve 19, the fourth solenoid valve 19 is turned on, the micro pump is turned on, and when the system detects that the liquid level in the clean water tank is lower than the low water level, the micro pump is turned off, and then the fourth solenoid valve 19 is closed for 3 minutes.

[0072] In this embodiment, when it is not used for a long time, the clean water in the clean water tank 2 is emptied to ensure that the clean water will not exist in the clean water tank for a long time, thereby improving the user experience.

[0073] In one embodiment, the clean water tank 2 is provided with a first exhaust port 20;

[0074] In one embodiment, the clean water tank 2 is provided with a second exhaust port 21;

[0075] In one embodiment, the thick film heater 9 is provided with a thick film heater exhaust port 22 , and the thick film heater exhaust port 22 is connected to the second exhaust port 21 .

[0076] In this embodiment, when heating, the temperature of the thick film heater 9 will rise, and steam or hot air may be generated. If these hot air or steam cannot be effectively discharged, the internal pressure will increase, which may lead to reduced equipment operating efficiency, or even damage the equipment or cause safety hazards. Therefore, a thick film heater exhaust port 22 is added to maintain the internal pressure balance and ensure the safe and efficient operation of the equipment. The clean water tank 2 is provided with a first exhaust port 20 and a second exhaust port 21; the first exhaust port 20 is used to discharge water vapor in the clean water tank 2, and the second exhaust port 21 is used to connect to the hot air exhaust port 22 of the thick film heater to prevent the thick film from rupture due to heating expansion after heating. It also helps to control the temperature and humidity during the heating process to ensure the heating effect.

[0077] Although the specific embodiments of the present disclosure are described above, those skilled in the art should understand that this is only an example, and the protection scope of the present disclosure is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present disclosure, but these changes and modifications all fall within the protection scope of the present disclosure.

Claims

1. A wall-mounted pipeline drinking fountain, characterized in that: The wall-mounted pipeline drinking fountain comprises: a first water inlet, a clean water tank, a first sterilizer, a buffer water tank, a first water outlet and a controller; The first water inlet is connected to the clean water tank through a first pipeline; The second water inlet of the buffer water tank is connected to the clean water tank through a second pipeline, and the second water outlet of the buffer water tank is connected to the first water outlet; A first sterilizer is provided inside the buffer water tank; The controller is electrically connected to the first sterilizer.

2. The wall-mounted pipeline drinking fountain according to claim 1, characterized in that: A second sterilizer is arranged inside the clean water tank, and the controller is electrically connected to the second sterilizer.

3. The wall-mounted pipeline drinking fountain according to claim 2, characterized in that: The second pipeline is provided with a heating device; The heating device comprises a micro pump and a thick film heater; One end of the micro pump is connected to the clean water tank, and the other end is connected to the third water inlet of the thick film heater; The third water outlet of the thick film heater is connected to the first water inlet of the buffer water tank; The controller is electrically connected to the thick film heater and the micro pump respectively.

4. The wall-mounted pipeline drinking fountain according to claim 3, characterized in that: The third water outlet of the thick film heater is provided with a temperature sensor, and the controller is electrically connected to the temperature sensor; the temperature sensor is used to measure the water temperature of the third water outlet of the thick film heater and send the water temperature to the controller.

5. The wall-mounted pipeline drinking water dispenser according to any one of claims 3 or 4, characterized in that: A first water level sensor is provided inside the buffer water tank, the controller is electrically connected to the first water level sensor, and the first water level sensor sends a first water level to the controller.

6. The wall-mounted pipeline drinking water dispenser according to any one of claims 3 or 4, characterized in that: The first water outlet is provided with a first solenoid valve, and the controller is electrically connected to the first solenoid valve; and / or; The first pipeline is provided with a pre-filter and a second solenoid valve; The first water inlet is connected to the fourth water inlet of the pre-filter, and the fourth water outlet of the pre-filter is connected to the clean water tank through the second solenoid valve; The controller is electrically connected to the second solenoid valve.

7. The wall-mounted pipeline drinking water dispenser according to any one of claims 3 or 4, characterized in that: A second water level sensor is provided inside the clean water tank, the controller is electrically connected to the second water level sensor, and the second water level sensor sends a second water level to the controller; and / or; A mechanical float valve is arranged inside the clean water tank, and the controller is electrically connected to the mechanical float valve.

8. The wall-mounted pipeline drinking water dispenser according to any one of claims 3 or 4, characterized in that: The clean water tank is connected to the second water outlet through a fourth pipeline, and the fourth pipeline is provided with a third solenoid valve; the controller is electrically connected to the third solenoid valve.

9. The wall-mounted pipeline drinking water dispenser according to any one of claims 3 or 4, characterized in that: The bottom of the clean water tank is provided with a drain outlet, and a fourth solenoid valve is provided at the drain outlet; The controller is connected to the fourth solenoid valve.

10. The wall-mounted pipeline drinking water dispenser according to claim 3 or 4, characterized in that: The clean water tank is provided with a first exhaust port; And / or, the clean water tank is provided with a second exhaust port; And / or, the thick film heater is provided with a thick film heater exhaust port, and the thick film heater exhaust port is connected to the second exhaust port.