Water dispenser capable of achieving multiple safety protection of water inflow

Abstract

The water dispenser comprises a water inlet tank, a water inlet assembly connected to the water inlet tank and a water inlet protection assembly arranged on the water inlet tank. The water inlet assembly comprises a water inlet pump and a water inlet electromagnetic valve in electric control connection with the water inlet pump, and the water inlet tank is connected with an external water source through the water inlet pump; the water inlet protection assembly comprises a high-level water level switch arranged at the bottom of the water inlet tank, a limit water level switch arranged above the high-level water level switch and a control valve connected between a water inlet of the water inlet tank and the water inlet pump, and the high-level water level switch is in electric control connection with the water inlet electromagnetic valve. And the limit water level switch is at least in electric control connection with the control valve.

Description

Technical Field

[0001] The utility model relates to the technical field of drinking water equipment, in particular to a drinking water machine with multiple safety protections for water inlet. Background Art

[0002] At present, direct drinking machines are increasingly widely used in household appliances. They usually have the functions of discharging cold water, normal temperature water and hot water. For this purpose, a cold water chamber, a normal temperature chamber and a heating component need to be set inside. During use, the direct drinking machine supplies water to the internal normal temperature tank through a water inlet pump, thereby achieving the function of outputting hot water, cold water or normal temperature water. However, the water inlet of the normal temperature chamber needs to be limited on the main body, otherwise the water flow in the chamber is too much, and stale water is likely to occur, affecting the water quality of the output water, and may even cause bacterial contamination, posing a potential threat to health;

[0003] A direct drinking machine in the prior art has a water level sensor installed inside a constant temperature box, and the water supply is cut off when the water level reaches a predetermined height. However, the function of cutting off the water supply is mainly realized by a water inlet solenoid valve connected to the pump body. When the water inlet solenoid valve is out of control, the water supply to the constant temperature chamber cannot be effectively cut off. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a water dispenser with multiple safety protections for water inlet.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a water dispenser with multiple safety protections for water inlet, a water inlet tank, a water inlet assembly connected to the water inlet tank, and a water inlet protection assembly arranged on the water inlet tank;

[0006] The water inlet assembly includes a water inlet pump and a water inlet solenoid valve electrically connected to the water inlet pump, and the water inlet tank is connected to an external water source through the water inlet pump;

[0007] The water inlet protection component includes a high water level switch arranged at the bottom of the water inlet tank, a limit water level switch arranged above the high water level switch, and a control valve connected between the water inlet of the water inlet tank and the water inlet pump. The high water level switch is electrically connected to the water inlet solenoid valve, and the limit water level switch is at least electrically connected to the control valve.

[0008] Furthermore, the high water level switch and the limit water level switch are configured to contact water and output water level signals to control the opening and closing of the water inlet solenoid valve and the control valve.

[0009] Furthermore, a mounting recess is provided on one side of the bottom of the water inlet tank, the control valve is inserted and fixed in the mounting recess, and a water channel connecting seat is provided on the mounting recess and is placed above the bottom of the water inlet tank. The water channel connecting seat is sealingly sleeved on the water inlet and outlet of the control valve.

[0010] Furthermore, the water inlet is opened at the bottom of the water inlet box and is arranged adjacent to the mounting recess, and the water inlet is connected to the water channel connecting seat.

[0011] Furthermore, a connecting seat is also provided on the mounting recess, and a connecting matching seat fixedly connected to the connecting seat is provided on the control valve.

[0012] Furthermore, the water inlet has a water inlet pipe end extending downward from the water inlet tank, and a quick connector is provided on the water inlet pipe end. The quick connector is connected to the water inlet pump through a water inlet hose.

[0013] Furthermore, the bottom of the water inlet tank is provided with a sensing area and a water outlet area, and one or more temperature sensors and water shortage sensors are arranged on the sensing area, and one or more hot water supply ports and cold water supply ports are provided on the water outlet area.

[0014] Furthermore, the water inlet tank includes a top cover, the limit water level switch is arranged on the top cover, and the top cover is also provided with a first ventilation channel.

[0015] Furthermore, a cold water tank is provided at the bottom of the water inlet tank, and a second ventilation channel is provided on the water outlet area, and the second ventilation channel connects the cold water tank and the water inlet tank;

[0016] The hot water supply port is arranged between the cold water tank and the water inlet, and the bottom of the hot water supply port is connected to a heating component through a quick connector. The water inlet, the hot water supply port, the second ventilation channel and the cold water supply port are arranged linearly. The cold water tank is arranged on one side of the hot water supply port, and the sensing area is arranged on both sides of the water outlet area.

[0017] Furthermore, a mounting seat is provided at the bottom of the water inlet tank, and a limiting channel is provided on the mounting seat. The limiting channel has connected axial and circumferential strokes. A mounting sleeve is passed through the mounting seat, and a limiting block matching the caliber of the limiting channel is provided on the mounting sleeve. The mounting sleeve is used to fix the sensor.

[0018] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0019] The utility model arranges a water inlet protection component on the water inlet tank, wherein the water inlet solenoid valve and the high water level switch constitute the first water level protection, and the control valve and the limit water level switch constitute the second water level protection. During the water supply process, when the water level in the water inlet tank reaches the high water level switch, the high water level switch triggers the first water cut-off signal and controls the water inlet solenoid valve to cut off the water flow of the water inlet pump. When the water inlet solenoid valve or the high water level switch fails, the water level reaches the height of the limit water level switch, and the limit water level switch triggers the second water cut-off signal, thereby further cutting off the water flow path of the control valve, thereby ensuring the water level in the water inlet tank is stable, preventing water overflow inside the water dispenser, and further forming reliable water cut-off control for the water inlet tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal arrangement of the host of the utility model;

[0023] Figure 4 This is a schematic diagram of the distribution of the water inlet tank and the cold water tank of the utility model;

[0024] Figure 5 It is a connection diagram of the control valve and the water inlet pump of the utility model;

[0025] Figure 6 It is a cross-sectional schematic diagram of the control valve and the mounting seat of the utility model;

[0026] Figure 7 It is a top view of the water inlet tank of the utility model after the top cover is removed;

[0027] Figure 8 It is an internal schematic diagram of the water inlet box of the utility model;

[0028] Fig. 9 It is a cross-sectional view of the main machine of the utility model;

[0029] Fig.10 It is an exploded schematic diagram of the installation structure of the utility model;

[0030] In the figure: 1, water inlet box; 1.1, water inlet; 1.11, water inlet pipe end; 1.2, top cover; 1.21, first ventilation channel; 1.22, water retaining panel; 1.3, cold water supply port; 1.4, hot water supply port; 1.5, second ventilation channel; 1.6, mounting seat; 1.61, limit channel; 1.62, guide surface; 1.63, blocking surface;

[0031] 2. Water inlet pump; 2.1. Water inlet solenoid valve; 3. High water level switch; 4. Limit water level switch;

[0032] 5. Control valve; 5.1. Connect the matching seat;

[0033] 6. Installation recess; 6.1. Water connection seat; 6.2. Connection seat;

[0034] 7. Temperature sensor; 8. Cold water tank; 8.1. Refrigeration module; 9. Heating component;

[0035] 10. Installation sleeve; 10.1. Limit block; 10.2. Stop block;

[0036] 11. Host; 11.1. Panel; 12. Operation panel; 13. Control board; 14. Quick connector; 15. Water pump; 16. Bracket; 17. Water shortage sensor; DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0039] like Figure 1-10 As shown, a drinking fountain with multiple safety protections for water inlet, a water inlet tank 1, a water inlet assembly connected to the water inlet tank 1, and a water inlet protection assembly arranged on the water inlet tank 1;

[0040] The water inlet assembly includes a water inlet pump 2 and a water inlet solenoid valve 2.1 electrically connected to the water inlet pump 2. The water inlet tank 1 is connected to an external water source via the water inlet pump 2.

[0041] The water inlet protection component includes a high water level switch 3 arranged at the bottom of the water inlet tank 1, a limit water level switch 4 arranged above the high water level switch 3, and a control valve 5 connected between the water inlet 1.1 of the water inlet tank 1 and the water inlet pump 2. The high water level switch 3 is electrically connected to the water inlet solenoid valve 2.1, and the limit water level switch 4 is at least electrically connected to the control valve 5.

[0042] from Fig. 9It can be seen that, specifically, the water inlet tank 1 includes a top cover 1.2, the limit water level switch 4 is arranged on the top cover 1.2, and a first ventilation channel 1.21 is also provided on the top cover 1.2. The first ventilation channel 1.21 is arranged adjacent to the end corner of the top cover 1.2, and the first ventilation channel 1.21 corresponds to the top of the mounting recess 6, and a water retaining panel 11.11.22 is provided facing the center of the water inlet tank 1.

[0043] Specifically, the high water level switch 3 and the limit water level switch 4 are configured to be in contact with water and output water level signals to control the opening and closing of the water inlet solenoid valve 2.1 and the control valve 5.

[0044] Among them, the high water level switch 3 and the limit water level switch 4 can both be selected as float liquid level switches, and the control valve 5 is preferably an electrically controlled ball valve.

[0045] Reference Figures 1 to 4 As shown, specifically, the water dispenser includes a main unit 11, a control panel 1211.1 is provided at the front of the main unit 11, and a control board 13 that receives an operation signal of the control panel 1211.1, the operation signal indicates a different water supply mode of the water dispenser selected by the user, and the above-mentioned high water level switch 3, limit water level switch 4, control valve 5 and water inlet solenoid valve 2.1 are all electrically connected to the control board 13.

[0046] Optionally, the electrically controlled ball valve is set to be normally open. When the limit water level switch 4 is triggered by contact with the water level, the electrically controlled ball valve is controlled to close, thereby blocking the water flow from entering the water inlet tank 1 and effectively preventing internal water overflow.

[0047] In this embodiment, a water inlet protection assembly is arranged on the water inlet tank 1, wherein the water inlet solenoid valve 2.1 and the high water level switch 3 constitute the first water level protection, and the control valve 5 and the limit water level switch 4 constitute the second water level protection.

[0048] When the water dispenser is discharging water, the user controls the host 11 and inputs work through the control panel 1211.1, and the control board 13 inside the host 11 controls the water inlet pump 2 to work. At this time, the water inlet solenoid valve and the control valve 5 are both in the open state. During the water supply process, when the water level in the water inlet tank 1 reaches the high water level switch 3, the high water level switch 3 triggers the first water cut-off signal and controls the water inlet solenoid valve 2.1 to cut off the water flow of the water inlet pump 2. When the water inlet solenoid valve 2.1 or the high water level switch 3 fails, the water level reaches the height of the limit water level switch 4, and the limit water level switch 4 triggers the second water cut-off signal, thereby further cutting off the water flow path of the control valve 5, thereby ensuring the water level in the water inlet tank 1 is stable, preventing water overflow inside the water dispenser, and then forming a reliable water cut-off control for the water inlet tank 1.

[0049] Furthermore, the second water cut-off signal of the limit water level switch 4 also acts on the water inlet pump 2. Preferably, the control panel 13 receives the second water cut-off signal and further controls the water inlet pump 2 to disconnect, so as to further ensure the safety of water inlet.

[0050] The second water cut-off signal is triggered when the water inlet solenoid valve 2.1 or the high water level switch 3 fails.

[0051] By adopting the multi-protection water inlet protection component of the utility model, even if the high water level switch 3 or the water inlet solenoid valve 2.1 is damaged, the control valve 5 can control the water passage of the water inlet tank 1 through the limit water level switch 4, thereby ensuring the safety and reliability of the water dispenser.

[0052] like Figure 5 and Figure 6 As shown, as a way of installing the control valve 5, a mounting recess 6 is provided at one side of the bottom of the water inlet tank 1, and the control valve 5 is placed and fixed in the mounting recess 6. The control valve 5 is directly arranged at the bottom of the water inlet tank 1 as the end of the water inlet waterway of the water inlet tank 1, and is built into the water inlet tank 1 through the mounting recess 6, which effectively reduces the occupied space of the control valve 5.

[0053] Specifically, the mounting recess 6 is provided with a water channel connecting seat 6.1 placed above the bottom of the water inlet tank 1. The water channel connecting seat 6.1 is in a protruding tubular shape and is integrally arranged on the mounting recess 6. The assembly direction of the water channel connecting seat 6.1 is consistent with that of the control valve 5. A sealing member is provided between the water channel connecting seat 6.1 and the water inlet and outlet of the control valve 5, so that the water channel connecting seat 6.1 is sealed and sleeved on the water inlet and outlet of the control valve 5, thereby realizing water channel connection between the control valve 5 and the water inlet tank 1.

[0054] Specifically, a connecting seat 6.2 is also provided on the mounting recess 6, and a connecting fitting seat 5.1 fixedly connected to the connecting seat 6.2 is provided on the control valve 5. The assembly direction of the connecting seat 6.2 and the connecting fitting seat 5.1 and the control valve 5 is consistent. During the installation of the control valve 5, a preliminary seal and positioning is formed between the water channel connecting seat 6.1 and the water inlet and outlet of the control valve 5. Preferably, the connecting seat 6.2 and the connecting fitting seat 5.1 are fixedly connected by bolts, so as to fix the control valve 5 while further improving the tightness of the fitting between the water channel connecting seat 6.1 and the control valve 5.

[0055] As a further implementation method for filling the water inlet box 1, the water inlet 1.1 is opened at the bottom of the water inlet box 1 and is arranged adjacent to the mounting recess 6, and the water inlet 1.1 is connected to the water channel connection seat 6.1.

[0056] Specifically, the water inlet 1.1 has a water inlet pipe end 1.11 extending downward from the water inlet tank 1, and a quick connector 14 is provided on the water inlet pipe end 1.11. The quick connector 14 is connected to the water inlet pump 2 through a water inlet hose. During the water supply process, the external water source is output to the water inlet pipe end 1.11 through the water inlet pump 2 and the water inlet solenoid valve 2.1, and then enters the water inlet tank 1 through the water inlet 1.1 and the control valve 5.

[0057] Preferably, the water inlet 1.1 extends to the water channel connection seat 6.1 of the mounting recess 6 and shares the structural wall of the water inlet tank 1 with the water channel connection seat 6.1, thereby eliminating the need for additional adapters or other water channel connection components in the water inlet tank 1.

[0058] like Figure 7 As shown, as a further improvement to the water inlet tank 1, the bottom of the water inlet tank 1 is provided with a sensing area and a water outlet area, and one or more of a temperature sensor 7 and a water shortage sensor 17 are arranged on the sensing area, and one or more of a hot water supply port 1.4 and a cold water supply port 1.3 are provided on the water outlet area, wherein the hot water supply port 1.4 is used to connect to the heating component 9 in the main unit 11, and the cold water supply port 1.3 is used to connect to the cold water tank 8 in the main unit 11.

[0059] This embodiment aims to reasonably arrange the area at the bottom of the water inlet tank 1, so as to improve the compactness of the structure inside the water dispenser.

[0060] Specifically, a cold water tank 8 is provided at the bottom of the water inlet tank 1, and a second ventilation channel 1.5 is provided on the water outlet area, and the second ventilation channel 1.5 connects the cold water tank 8 and the water inlet tank 1;

[0061] Combination Figure 3 and Figure 7 The hot water supply port 1.4 is arranged between the cold water tank 8 and the water inlet 1.1, and the bottom of the hot water supply port 1.4 is connected to a heating component 9 through a quick connector 14. The heating component 9 is vertically arranged on one side of the water inlet tank 1, and the number of heating components 9 corresponds to the number of hot water supply ports 1.4. In this embodiment, the number of heating components 9 and hot water supply ports 1.4 is two, and the heating components 9 are connected for water supply through a waterway plate. The hot water supply port 1.4 and the heating component 9 can work synchronously, thereby speeding up the output efficiency of hot water.

[0062] Furthermore, the sensing area is arranged on both sides of the water outlet area, the water inlet 1.1, the hot water supply port 1.4, the second ventilation channel 1.5 and the cold water supply port 1.3 are arranged linearly, and the cold water tank 8 is set on one side of the hot water supply port 1.4.

[0063] Specifically, the cold water supply port 1.3 and the second ventilation channel 1.5 are arranged between the high water level switch 3 and the low water level switch, a refrigeration module 8.1 is provided on one side of the cold water tank 8, and the temperature sensor 7 is arranged between the hot water supply port 1.4 and the cold water supply port 1.3, and the cold water supply port 1.3 is far away from the water inlet 1.1 of the water inlet tank 1, so as to reliably detect the water flow temperature in the water inlet tank 1 and improve the working accuracy of the refrigeration module 8.1.

[0064] like Figure 2 and Figure 3 As shown, as a spatial arrangement within the main unit 11, the cold water tank 8 is connected to a water outlet pump 15, and a bracket 16 is also provided within the main unit 11. The water inlet tank 1, the cold water tank 8 and the water outlet pump 15 are arranged on the bracket 16 from top to bottom, the cold water tank 8 is arranged directly below the water inlet tank 1, and the second ventilation channel 1.5 and the cold water supply port 1.3 are connected between the water inlet tank 1 and the cold water tank 8. The water pump inlet of the water outlet pump 15 is connected to the bottom of the cold water tank 8, and the water pump outlet of the water outlet pump 15 is connected to the water outlet head.

[0065] Among them, the top of the bracket 16 is provided with an L-shaped step portion for fixing the water inlet tank 1, the water inlet tank 1 extends out of the step portion and is connected to the cold water tank 8, and the bracket 16 is provided with a vertical extension portion below the step portion, the cold water tank 8 abuts against the vertical surface of the extension portion, and a pump seat for fixing the water outlet pump 15 is also provided at the bottom of the extension portion.

[0066] The water inlet pump 2 is fixed to the back of the front panel 11.1 of the main unit 11, preferably in an embedded installation, so that the water outlet of the water inlet pump 2 can extend inside the main unit 11 near the water inlet pipe end 1.11 of the water inlet tank 1.

[0067] In this embodiment, a heating component 9 is also provided in the main unit 11. The heating component 9 is vertically arranged on one side of the bracket 16 and receives the water flow from the water inlet tank 1. It also includes a hot water pump for supplying water to the heating component 9. The hot water pump connects the heating component 9 and the hot water supply port 1.4 of the water inlet tank 1.

[0068] Through the above-mentioned layout and modification of the main unit 11 space, the space inside the water inlet tank 1 and the main unit 11 is reasonably divided under the premise of having the functions of cold water, normal temperature water and hot water, so that the water channel connecting components at the bottom of the water inlet tank 1 and the cold water tank 8 are arranged in a regular manner, which is convenient for assembly and later debugging, thereby realizing effective utilization of the space inside the main unit 11.

[0069] Reference Fig.10 As shown, in other embodiments, a sensor mounting structure is also provided at the bottom of the water inlet tank 1 to facilitate the installation of sensors or other electronic components at the bottom of the water inlet tank 1 .

[0070] Specifically, a mounting seat 1.6 is provided at the bottom of the water inlet tank 1, and the mounting seat 1.6 is connected to the inside of the water inlet tank 1. A limiting channel 1.61 is provided on the side wall of the mounting seat 1.6. The limiting channel 1.61 has connected axial and circumferential strokes. A mounting sleeve 10 is passed through the mounting seat 1.6, and a limiting block 10.1 matching the caliber of the limiting channel 1.61 is provided on the mounting sleeve 10. The mounting sleeve 10 is used to fix the sensor.

[0071] During the assembly process, the sensor is fixed in the mounting sleeve 10, and the limit block 10.1 thereon is placed into the mounting seat 1.6 through the axial stroke of the limit channel 1.61. Then the mounting sleeve 10 is rotated so that the limit block 10.1 enters the circumferential stroke of the limit channel 1.61, completing the position fixation of the mounting sleeve 10.

[0072] The limiting channel 1.61 is provided with an inclined guide surface 1.62 and a blocking surface 1.63 on its circumferential travel. The limiting block 10.1 is guided to the end of the circumferential travel of the limiting channel 1.61 by the guide surface 1.62 and is limited by the blocking surface 1.63 in the disengagement direction.

[0073] A stop block 10.2 is further provided at the bottom of the mounting sleeve 10. After the limit block 10.1 is completely fitted into the end of the circumferential travel of the limit channel 1.61, the stop block 10.2 abuts against the bottom end surface of the mounting seat 1.6.

[0074] The above-mentioned mounting sleeve 10 and mounting seat 1.6 constitute a mounting structure. As an example, in this embodiment, the mounting sleeve 10 is used to fix the temperature sensor 7.

[0075] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A water dispenser with multiple safety protections for water inlet, characterized by: A water inlet box (1), a water inlet assembly connected to the water inlet box (1), and a water inlet protection assembly arranged on the water inlet box (1); The water inlet assembly comprises a water inlet pump (2) and a water inlet solenoid valve (2.1) electrically connected to the water inlet pump (2); the water inlet tank (1) is connected to an external water source via the water inlet pump (2); The water inlet protection component comprises a high water level switch (3) arranged at the bottom of the water inlet tank (1), a limit water level switch (4) arranged above the high water level switch (3), and a control valve (5) connected between the water inlet (1.1) of the water inlet tank (1) and the water inlet pump (2), the high water level switch (3) being electrically connected to the water inlet solenoid valve (2.1), and the limit water level switch (4) being at least electrically connected to the control valve (5).

2. A water dispenser with multiple safety protections for water inlet as claimed in claim 1, characterized in that: The high water level switch (3) and the limit water level switch (4) are arranged to contact water and output water level signals to control the opening and closing of the water inlet solenoid valve (2.1) and the control valve (5).

3. A water dispenser with multiple safety protections for water inlet as claimed in claim 1, characterized in that: A mounting recess (6) is provided on one side of the bottom of the water inlet box (1), the control valve (5) is inserted and fixed in the mounting recess (6), the mounting recess (6) is provided with a water channel connection seat (6.1) located above the bottom of the water inlet box (1), and the water channel connection seat (6.1) is sealed and sleeved on the water inlet and outlet of the control valve (5).

4. A water dispenser with multiple safety protections for water inlet as claimed in claim 3, characterized in that: The water inlet (1.1) is opened at the bottom of the water inlet box (1) and is arranged adjacent to the mounting recess (6), and the water inlet (1.1) is connected to the water channel connection seat (6.1).

5. A water dispenser with multiple safety protections for water inlet as claimed in claim 3, characterized in that: The mounting recess (6) is also provided with a connecting seat (6.2), and the control valve (5) is provided with a connecting matching seat (5.1) fixedly connected to the connecting seat (6.2).

6. A water dispenser with multiple safety protections for water inlet as claimed in claim 1, characterized in that: The water inlet (1.1) has a water inlet pipe end (1.11) extending downward from the water inlet tank (1), and a quick connector (14) is provided on the water inlet pipe end (1.11). The quick connector (14) is connected to the water inlet pump (2) via a water inlet hose.

7. A water dispenser with multiple safety protections for water inlet as claimed in claim 1, characterized in that: The bottom of the water inlet tank (1) is provided with a sensing area and a water outlet area, wherein one or more of a temperature sensor (7) and a water shortage sensor (17) are arranged on the sensing area, and one or more of a hot water supply port (1.4) and a cold water supply port (1.3) are arranged on the water outlet area.

8. A water dispenser with multiple safety protections for water inlet as claimed in claim 1, characterized in that: The water inlet box (1) comprises a top cover (1.2), the limit water level switch (4) is arranged on the top cover (1.2), and the top cover (1.2) is also provided with a first ventilation channel (1.21).

9. A water dispenser with multiple safety protections for water inlet as claimed in claim 7, characterized in that: A cold water tank (8) is provided at the bottom of the water inlet tank (1), and a second ventilation channel (1.5) is provided on the water outlet area, wherein the second ventilation channel (1.5) connects the cold water tank (8) and the water inlet tank (1); The hot water supply port (1.4) is arranged between the cold water tank (8) and the water inlet (1.1), and the bottom of the hot water supply port (1.4) is connected to a heating component (9) via a quick connector (14); the water inlet (1.1), the hot water supply port (1.4), the second ventilation channel (1.5) and the cold water supply port (1.3) are arranged linearly; the cold water tank (8) is arranged on one side of the hot water supply port (1.4), and the sensing area is arranged on both sides of the water outlet area.

10. A drinking fountain with multiple safety protections for water inlet as claimed in any one of claims 1 to 9, characterized in that: A mounting seat (1.6) is provided at the bottom of the water inlet tank (1), a limiting channel (1.61) is provided on the mounting seat (1.6), the limiting channel (1.61) has a connected axial and circumferential stroke, a mounting sleeve (10) is inserted into the mounting seat (1.6), a limiting block (10.1) matching the caliber of the limiting channel (1.61) is provided on the mounting sleeve (10), and the mounting sleeve (10) is used to fix the sensor.

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