Water dispenser with photoelectric liquid level sensor

Abstract

The utility model discloses a water dispenser with a photoelectric liquid level sensor, which relates to the technical field of water dispensers and comprises a base, the top end of the base is fixedly connected with a water dispenser body, the top end of the water dispenser body is provided with a water through port, one side of the water dispenser body is provided with a limit groove, and one side of the limit groove is provided with a ventilation port. By the adoption of the structure, the inner side of the water dispenser body can be effectively cooled due to the vent holes, the first dustproof plate and the second dustproof plate can effectively filter dust of blocked circulating air, and the circulating air can enter the water dispenser body in a bending mode. Therefore, air entering the ventilation opening can be in close contact with the filtering plate, the filtering plate can conduct convection ventilation for good secondary filtering, a large amount of dust and pollutants can be prevented from entering the water dispenser body through the ventilation opening to damage internal equipment, and the service life of the water dispenser body can be effectively prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of water dispenser technology, and specifically relates to a water dispenser with a photoelectric liquid level sensor. Background Technology

[0002] Photoelectric liquid level sensors are widely used in water dispensers. Their working principle is based on the photoelectric effect. By combining light-emitting diodes and photodiodes, they detect changes in light intensity to determine the liquid level. Photoelectric liquid level sensors have advantages such as small size, low power consumption, no moving mechanical parts, and high waterproof rating. They are suitable for use in water dispensers and other devices with limited space that need to frequently come into contact with water. They can accurately detect changes in water level, promptly remind users to add water or automatically turn off the heating element to prevent dry burning, and ensure the safe, energy-saving, and intelligent operation of the water dispenser.

[0003] Chinese patent with announcement number "CN211022263U" discloses a water dispenser, including a water dispenser body, a placement groove at the upper end of the water dispenser body, a heating chamber at the upper part of the water dispenser body, and the heating chamber communicating with the placement groove; the heating chamber is provided with a heating structure for heating water, and a valve communicating with the heating chamber is provided on the side of the water dispenser body.

[0004] However, the above structure still has some shortcomings. When using a water dispenser, the electrical equipment inside will operate, such as the water heating device and sensor device. These devices will release a certain amount of heat when they are running. Generally, water dispensers directly open the corresponding ventilation vents to dissipate this heat. However, the air circulation will cause dust and pollutants in the air to drift into the water dispenser. Over a long period of time, these dust and pollutants will seriously damage the electrical equipment inside the water dispenser, thereby reducing the service life of the water dispenser itself. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a water dispenser with a photoelectric liquid level sensor to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A water dispenser with a photoelectric liquid level sensor includes a base, a water dispenser body fixedly connected to the top of the base, a water inlet at the top of the water dispenser body, a limit groove on one side of the water dispenser body, a ventilation opening on one side of the limit groove, and the ventilation opening communicating with the interior of the water dispenser body. A photoelectric liquid level sensor is installed inside the water dispenser body, the position of the photoelectric liquid level sensor corresponding to the position of the ventilation opening. A limit frame is inserted into one side of the limit groove, and a first dustproof plate and a second dustproof plate are fixedly connected to the inner side of the limit frame. A strip-shaped opening is opened on the rear side of the water dispenser body, communicating with the ventilation opening. The inside of the opening is open to each other, and a filter plate is inserted into the inside of the strip opening. The filter plate is inserted into the inside of the vent through the strip opening. The position of the filter plate corresponds to the position of the second dustproof plate. Through the setting of the vent, the interior of the water dispenser can be effectively ventilated and cooled. The first and second dustproof plates can effectively block dust in the air, and at the same time, they can make the filter plate more closely contact the airflow, so that the filter plate can perform secondary filtration of dust or pollutants, thereby avoiding the effect of a large amount of dust entering the interior of the water dispenser and damaging its internal electrical equipment.

[0008] As a preferred technical solution, a limiting block is fixedly connected to the other side of the limiting frame. The limiting block is fixedly connected to the four sides near the corner of the other side of the limiting frame. A second slot matching the limiting block is opened on one side of the limiting groove. The limiting block is inserted into the inner side of the second slot. The limiting frame is connected to one side of the limiting groove through the limiting block and the second slot. By inserting the limiting block, the position of the limiting frame can be effectively fixed to prevent displacement. It also facilitates the user's disassembly and maintenance in the future.

[0009] As a preferred technical solution, a first slot is provided on the inner wall of the vent. A matching insert plate is fixedly connected to the front side of the filter plate. The insert plate is inserted into the inner side of the first slot. A sealing plate is fixedly connected to the rear side of the filter plate. The sealing plate covers the rear side of the strip-shaped opening. A first protrusion is fixedly connected to the rear side of the sealing plate. The first protrusion has an arc-shaped corner. By inserting the insert plate, the filter plate position can be effectively fixed, thereby preventing it from shifting.

[0010] As a preferred technical solution, a protective frame is magnetically connected to the top of the water dispenser body, and the water inlet is located inside the protective frame. A sealing ring is fixedly connected to the top of the protective frame, covering the top of the protective frame. The protective frame design allows for more accurate placement of the water bucket, and the sealing ring effectively seals the contact points to achieve a good sealing and dustproof effect.

[0011] As a preferred technical solution, a groove is provided at the top of the water dispenser body, and an electromagnet is fixedly connected to the inside of the groove. The electromagnet covers the inside of the groove, and the top of the electromagnet is attached to the bottom of the protective frame. The bottom of the protective frame is made of magnetic material. Through the attraction of the electromagnet, the position of the protective frame can be effectively fixed, thereby preventing the position from shifting.

[0012] As a preferred technical solution, a collection groove is provided on the front side of the base, a collection frame is snapped into the inner side of the collection groove, a support plate is slidably connected to the inner wall of the collection frame, a first sliding groove matching the support plate is provided on the inner wall of the collection frame, the support plate is slidably connected to the inner wall of the collection frame through the first sliding groove, a rotating shaft is rotatably connected to the bottom inner side of the collection frame, a screw is fixedly connected to the top of the rotating shaft, a screw hole matching the screw is provided at the top of the support plate, and the screw is threaded into the inner side of the screw hole. The support plate facilitates the user to place utensils such as water cups, and the screw can be turned to adjust the height of the support plate so as to adjust the placement space according to the needs of placing items.

[0013] As a preferred technical solution, a telescopic plate is fixedly connected to the inner bottom of the collection frame, and the top of the telescopic plate is fixedly connected to the bottom of the support plate. The screw is located on the inner side close to the telescopic plate. A second sliding groove matching the collection frame is opened at the inner bottom of the collection trough. The collection frame is slidably connected to the inner wall of the collection trough through the second sliding groove. By setting the telescopic plate, the placement space can be effectively divided so that different items can be placed in a classified manner. At the same time, the outer side of the screw can also be effectively protected.

[0014] As a preferred technical solution, a first slot is formed on the inner wall of the collection frame, extending into the base. A second slot is formed on the inner wall of the first slot, and a circular groove is formed on the inner side of the first slot. A retaining spring is installed on the inner side of the circular groove. A first locking block is engaged with the inner side of the first slot. A second locking block that matches the second slot is fixedly connected to the outer side of the first locking block. The second locking block is engaged with the inner side of the circular groove by the retaining spring. A sealing block is fixedly connected to the other side of the first locking block, and a second protrusion is fixedly connected to the other side of the sealing block. The shape of the corner of the second protrusion is arc-shaped. By screwing the first locking block in, the angle of the second locking block is not corresponding to the angle of the second slot, so that the second locking block can be engaged in the circular groove. This can prevent the collection frame from shifting and also facilitate the user to remove the first locking block and dismantle the collection frame later.

[0015] As a preferred technical solution, a protective door is hinged to the front of the base, covering the front of the collection tank. A door handle is installed on the front of the protective door, with the corners of the handle being rounded. A rectangular opening is provided on the front of the protective door, communicating with the inside of the collection tank. A transparent glass is fixedly connected to the inside of the rectangular opening, covering the inside of the rectangular opening. Through the opening of the rectangular opening, it is convenient for the user to observe the inside of the collection box at all times, and the user can also know in time whether the item to be taken is placed in the collection box.

[0016] In summary, the present invention has the following main advantages:

[0017] Firstly, during use, its water inlet facilitates the insertion of a water bucket to ensure normal water flow. Due to the opening of the ventilation opening, the inside of the water dispenser can be effectively cooled. Its first and second dustproof plates can effectively filter dust from the obstructed airflow without hindering airflow, and also allow the airflow to enter in a detour, so that the air entering the ventilation opening can come into closer contact with the filter plate, so that the filter plate can perform good secondary filtration of the airflow. This can prevent a large amount of dust and pollutants from entering the water dispenser through the ventilation opening and causing damage to its internal equipment, and can effectively improve the service life of the water dispenser itself.

[0018] Secondly, the support plate facilitates the placement of disposable cups and other utensils. When the screw is turned, the shaft allows the end of the screw to rotate in place, and the support plate slides up and down along the first groove to adjust the placement space for items. This allows users to place items of different sizes. The second locking block engages with the circular groove to effectively fix the collection box position, thus preventing displacement. When it needs to be disassembled later, the second locking block is adjusted to the corresponding angle with the second locking groove, and then the first locking block can be pulled out directly. Finally, the entire collection box can be pulled out through the second groove, which also facilitates the user's maintenance or cleaning of the inside of the collection box later. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the inner structure of the limiting groove of this utility model;

[0021] Figure 3 This is a schematic diagram of the limiting frame structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the filter plate structure of this utility model;

[0023] Figure 5This is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 6 This is a schematic diagram of the inner structure of the collection frame of this utility model;

[0025] Figure 7 This is a schematic diagram of the inner structure of the collection tank of this utility model;

[0026] Figure 8 This is a utility model Figure 7 A magnified structural diagram of part A;

[0027] Figure 9 This is a schematic diagram of the first card block structure of this utility model.

[0028] Reference numerals: 1. Base; 2. Water dispenser body; 3. Limiting groove; 4. Ventilation opening; 5. Photoelectric liquid level sensor body; 6. First slot; 7. Strip-shaped opening; 8. Filter plate; 9. Sealing plate; 10. First protrusion; 11. Insert plate; 12. Second slot; 13. Limiting frame; 14. First dustproof plate; 15. Second dustproof plate; 16. Limiting block; 17. Water inlet; 18. Protective frame; 19. Sealing ring; 20. Groove; 21. Electromagnetic... 21. Iron; 22. Collection trough; 23. Collection frame; 24. Support plate; 25. First slide groove; 26. Telescopic plate; 27. Rotating shaft; 28. Screw; 29. ​​Screw hole; 30. Second slide groove; 31. First slot; 32. Second slot; 33. Circular groove; 34. Snap ring; 35. First locking block; 36. Second locking block; 37. Sealing block; 38. Second protrusion; 39. Protective door; 40. Door handle; 41. Rectangular opening; 42. Transparent glass. Detailed Implementation

[0029] Example

[0030] refer to Figures 1 to 9This embodiment of a water dispenser with a photoelectric liquid level sensor includes a base 1. A water dispenser body 2 is fixedly connected to the top of the base 1. A water inlet 17 is provided at the top of the water dispenser body 2. A limiting groove 3 is provided on one side of the water dispenser body 2, and a ventilation opening 4 is provided on one side of the limiting groove 3. The ventilation opening 4 communicates with the interior of the water dispenser body 2. A photoelectric liquid level sensor body 5 is installed inside the water dispenser body 2. The position of the photoelectric liquid level sensor body 5 corresponds to the position of the ventilation opening 4. A limiting frame 13 is inserted into one side of the limiting groove 3. A first dustproof plate 14 and a second dustproof plate 15 are fixedly connected to the inner side of the limiting frame 13. A strip-shaped opening 7 is provided on the rear side of the water dispenser body 2. The strip-shaped opening 7 communicates with the inner side of the ventilation opening 4. A filter plate 8 is inserted into the inner side of the strip-shaped opening 7. The filter plate 8 is inserted into the inner side of the ventilation opening 4 through the strip-shaped opening 7. The position of the filter plate 8 corresponds to the position of the second dustproof plate 15. When in use, the design of the water inlet 17 facilitates the insertion of the water bucket to ensure normal water flow. The water dispenser body 2 is equipped with corresponding electrical devices such as water heating to meet the user's needs. The opening of the vent 4 allows for effective heat dissipation from the inside of the water dispenser body 2. The installation points of the first dustproof plate 14 and the second dustproof plate 15 are opposite, and there is a five-centimeter air flow gap between them. The first dustproof plate 14 and the second dustproof plate 15 can effectively filter dust from the obstructed airflow without hindering airflow, and also allow the airflow to enter in a detour, so that the air entering the vent 4 can have closer contact with the filter plate 8, so that the filter plate 8 can perform good secondary filtration of the airflow, thereby preventing a large amount of dust and pollutants from entering the water dispenser body 2 through the vent 4 and causing damage to its internal equipment.

[0031] refer to Figures 1 to 3 A limiting block 16 is fixedly connected to the other side of the limiting frame 13. The limiting block 16 is fixedly connected to the four sides near the corner of the other side of the limiting frame 13. A second slot 12 matching the limiting block 16 is opened on one side of the limiting groove 3. The limiting block 16 is inserted into the inner side of the second slot 12. The limiting frame 13 is inserted into one side of the limiting groove 3 through the limiting block 16 and the second slot 12. Due to the presence of the limiting block 16, the insertion of the limiting block 16 can effectively fix the position of the limiting frame 13, thereby preventing the limiting frame 13 from shifting. When it needs to be disassembled later, the limiting block 16 can be pulled out. It also facilitates the user to maintain or clean the first dustproof plate 14 and the second dustproof plate 15 later.

[0032] refer to Figures 1 to 4A first slot 6 is provided on the inner wall of the vent 4. A plug plate 11 matching the first slot 6 is fixedly connected to the front side of the filter plate 8. The plug plate 11 is inserted into the inner side of the first slot 6. A sealing plate 9 is fixedly connected to the rear side of the filter plate 8. The sealing plate 9 covers the rear side of the strip opening 7. A first protrusion 10 is fixedly connected to the rear side of the sealing plate 9. The corners of the first protrusion 10 are arc-shaped. Due to the presence of the plug plate 11, the insertion of the plug plate 11 can effectively limit the position of the filter plate 8 to prevent it from shifting. When it needs to be removed later, it can be pulled out of the strip opening 7 directly through the first protrusion 10, which also facilitates the user to maintain or clean the filter plate 8 later.

[0033] refer to Figure 1 The top of the water dispenser body 2 is magnetically connected to a protective frame 18. The water inlet 17 is located inside the protective frame 18. A sealing ring 19 is fixedly connected to the top of the protective frame 18, covering the top of the protective frame 18. Due to the presence of the protective frame 18, the connection point of the water bucket can be effectively limited, thereby effectively improving the stability and accuracy of the water bucket connection. The sealing ring 19 can effectively seal the contact point between the two, thereby achieving a good dustproof sealing effect.

[0034] refer to Figure 1 The top of the water dispenser body 2 has a groove 20, and an electromagnet 21 is fixedly connected to the inside of the groove 20. The electromagnet 21 covers the inside of the groove 20, and the top of the electromagnet 21 is in contact with the bottom of the protective frame 18. The bottom of the protective frame 18 is made of magnetic material. Due to the presence of the electromagnet 21, the attraction of the electromagnet 21 can effectively fix the protective frame 18, thereby preventing the protective frame 18 from shifting. When it is necessary to remove the protective frame 18, the electromagnet 21 can be turned off and it can be pulled out directly, which also facilitates the user's later disassembly and maintenance.

[0035] refer to Figures 5 to 9A collection groove 22 is provided on the front side of the base 1. A collection frame 23 is snapped into the inner side of the collection groove 22. A support plate 24 is slidably connected to the inner wall of the collection frame 23. A first sliding groove 25 matching the support plate 24 is provided on the inner wall of the collection frame 23. The support plate 24 is slidably connected to the inner wall of the collection frame 23 through the first sliding groove 25. A rotating shaft 27 is rotatably connected to the bottom inner side of the collection frame 23. A screw 28 is fixedly connected to the top of the rotating shaft 27. A screw hole 29 matching the screw 28 is provided at the top of the support plate 24. The screw 28 is threaded into the inner side of the screw hole 29. A telescopic plate 26 is fixedly connected to the bottom inner side of the collection frame 23. The top of the telescopic plate 26 is fixedly connected to the bottom of the support plate 24. Located on the inner side of the telescopic plate 26, the bottom inner side of the collection groove 22 is provided with a second sliding groove 30 that matches the collection frame 23. The collection frame 23 is slidably connected to the inner wall of the collection groove 22 through the second sliding groove 30. A first locking groove 31 is provided on the inner wall of the collection frame 23, extending into the interior of the base 1. A second locking groove 32 is provided on the inner wall of the first locking groove 31. A circular groove 33 is provided on the inner side of the first locking groove 31, and a retaining spring 34 is installed on the inner side of the circular groove 33. A first locking block 35 is engaged on the inner side of the first locking groove 31, and a second locking block 36 that matches the second locking groove 32 is fixedly connected to the outer side of the first locking block 35. The second locking block 36 is engaged in the circular groove 33 through the retaining spring 34. On one side, a sealing block 37 is fixedly connected to the other side of the first locking block 35, and a second protrusion 38 is fixedly connected to the other side of the sealing block 37. The second protrusion 38 has an arc-shaped corner. Due to the setting of the support plate 24, it is convenient for users to place disposable cups and other utensils. When the screw 28 is turned, the rotating shaft 27 can make the end of the screw 28 rotate in place, and the support plate 24 will slide up and down along the first slide groove 25 to adjust the placement space of the items, thus making it convenient for users to place items of different sizes. Its telescopic plate 26 includes a movable plate and a sleeve plate, which can provide secondary support and limit the bottom end of the support plate 24 without hindering the adjustment of the height of the support plate 24, thereby effectively The support plate 24 improves the stability of height adjustment and can also divide the placement space to classify and place different items. It also effectively protects the screw 28 from being bumped. Due to the presence of the first locking block 35, the second locking block 36 can be inserted into the circular groove 33 to effectively fix the position of the collection frame 23, thereby preventing the collection frame 23 from shifting. When it needs to be disassembled later, the second locking block 36 is adjusted to the corresponding angle with the second locking groove 32, and then the first locking block 35 can be pulled out directly. Finally, the entire collection frame 23 can be pulled out through the second sliding groove 30, which also facilitates the user to maintain or clean the inside of the collection frame 23 later.

[0036] refer to Figure 1A protective door 39 is hinged to the front of the base 1, covering the front of the collection tank 22. A door handle 40 is installed on the front of the protective door 39, with rounded corners. A rectangular opening 41 is provided on the front of the protective door 39, communicating with the inside of the collection tank 22. A transparent glass 42 is fixedly connected to the inside of the rectangular opening 41, covering the inside of the rectangular opening 41. Due to the presence of the protective door 39, the front of the collection tank 22 can be effectively protected to prevent the items inside from being bumped. Because of the opening of the rectangular opening 41, the user can directly view the inside of the collection box 23 through the transparent glass 42 without opening the protective door 39, which facilitates the user to directly observe the items to be taken. If there are no items to be taken in the collection box 23, the user can also know in time, which can effectively reduce the consumption of time.

[0037] Operating principle and advantages: During use, the design of the water inlet 17 facilitates the insertion of the water bucket, ensuring normal water flow. The water dispenser body 2 is equipped with corresponding electrical devices for boiling and heating water to meet user needs. The vent 4 effectively dissipates heat from the inside of the water dispenser body 2. The first dustproof plate 14 and the second dustproof plate 15 are installed at opposite points, with a 5-centimeter airflow gap between them. The first dustproof plate 14 and the second dustproof plate 15 effectively filter dust from obstructed airflow without hindering airflow, and also allow the airflow to enter in a deflected manner, thus enabling closer contact between the air entering the vent 4 and the filter plate 8, facilitating airflow through the filter plate 8. A good secondary filtration system prevents a large amount of dust and pollutants from entering the water dispenser body 2 through the vent 4 and damaging its internal equipment. The presence of the limiting block 16 effectively fixes the limiting frame 13, preventing displacement. When it needs to be removed later, the limiting block 16 can be pulled out. This also facilitates user maintenance or cleaning of the first dustproof plate 14 and the second dustproof plate 15. The insertion plate 11 effectively limits the position of the filter plate 8, preventing displacement. When it needs to be removed later, it can be pulled out of the strip opening 7 directly through the first protrusion 10, further facilitating user maintenance or cleaning of the filter plate 8. The protective frame 18 effectively limits the connection points of the water bucket, thus improving the stability and accuracy of the connection. The sealing ring 19 effectively seals the contact points, providing a good dustproof seal. The electromagnet 21 effectively fixes the protective frame 18, preventing displacement. To remove the protective frame 18, simply turn off the electromagnet 21, facilitating future disassembly and maintenance. The support plate 24 allows for convenient placement of disposable cups and other utensils. Tightening the screw 28 rotates the shaft 27, causing the end of the screw 28 to rotate in place. The support plate 24 slides up and down along the first groove 25 to adjust the placement space for items, facilitating the placement of items of different sizes. The telescopic plate 26, including a movable plate and a sleeve plate, provides secondary support and limitation to the bottom of the support plate 24 without hindering height adjustment, effectively improving the stability of height adjustment. It also allows for relative division of the placement space for categorizing different items and effectively protects the screw 28 from impacts. Due to the presence of the first locking block 35, the second locking block 36 engages in the circular groove 33 to effectively fix the collection frame 23, preventing displacement.When it needs to be disassembled later, adjust the second locking block 36 to the corresponding angle with the second locking slot 32, then pull out the first locking block 35 directly, and finally pull out the entire collection frame 23 through the second sliding groove 30. This also facilitates the user's later maintenance or cleaning of the inside of the collection frame 23. The protective door 39 effectively protects the front of the collection slot 22 to prevent damage to the items inside. Due to the rectangular opening 41, the user can directly view the inside of the collection frame 23 through the transparent glass 42 without opening the protective door 39, allowing for direct observation of the items to be retrieved. If there are no items to be retrieved in the collection frame 23, the user will be notified immediately.

Claims

1. A water dispenser with a photoelectric liquid level sensor, comprising a base, characterized in that: A water dispenser body is fixedly connected to the top of the base. The top of the water dispenser body has a water inlet. A limiting groove is opened on one side of the water dispenser body, and a ventilation opening is opened on one side of the limiting groove. The ventilation opening communicates with the interior of the water dispenser body. A photoelectric liquid level sensor is installed inside the water dispenser body. The position of the photoelectric liquid level sensor corresponds to the position of the ventilation opening. A limiting frame is inserted into one side of the limiting groove. A first dustproof plate and a second dustproof plate are fixedly connected to the inner side of the limiting frame. A strip-shaped opening is opened on the rear side of the water dispenser body. The strip-shaped opening communicates with the inner side of the ventilation opening. A filter plate is inserted into the inner side of the strip-shaped opening. The filter plate is inserted into the inner side of the ventilation opening through the strip-shaped opening. The position of the filter plate corresponds to the position of the second dustproof plate.

2. A water dispenser with a photoelectric liquid level sensor according to claim 1, characterized in that: A limiting block is fixedly connected to the other side of the limiting frame. The limiting block is fixedly connected to the four sides near the corner of the other side of the limiting frame. A second slot matching the limiting block is opened on one side of the limiting groove. The limiting block is inserted into the inner side of the second slot. The limiting frame is inserted into one side of the limiting groove through the limiting block and the second slot.

3. A water dispenser with a photoelectric liquid level sensor according to claim 1, characterized in that: A first slot is provided on the inner wall of the vent. A plug plate matching the first slot is fixedly connected to the front side of the filter plate. The plug plate is inserted into the inner side of the first slot. A sealing plate is fixedly connected to the rear side of the filter plate. The sealing plate covers the rear side of the strip-shaped opening. A first protrusion is fixedly connected to the rear side of the sealing plate. The shape of the corner of the first protrusion is arc-shaped.

4. A water dispenser with a photoelectric liquid level sensor according to claim 1, characterized in that: The top of the water dispenser body is magnetically connected to a protective frame, the water inlet is located inside the protective frame, and a sealing ring is fixedly connected to the top of the protective frame, covering the top of the protective frame.

5. A water dispenser with a photoelectric liquid level sensor according to claim 4, characterized in that: The top of the water dispenser body has a groove, and an electromagnet is fixedly connected to the inside of the groove. The electromagnet covers the inside of the groove, and the top of the electromagnet is attached to the bottom of the protective frame. The bottom of the protective frame is made of magnetic material.

6. A water dispenser with a photoelectric liquid level sensor according to claim 1, characterized in that: The base has a collection groove on its front side, and a collection frame is snapped into the inner side of the collection groove. A support plate is slidably connected to the inner wall of the collection frame. A first sliding groove matching the support plate is opened on the inner wall of the collection frame. The support plate is slidably connected to the inner wall of the collection frame through the first sliding groove. A rotating shaft is rotatably connected to the bottom inner side of the collection frame. A screw is fixedly connected to the top of the rotating shaft. A screw hole matching the screw is opened at the top of the support plate. The screw is threaded into the inner side of the screw hole.

7. A water dispenser with a photoelectric liquid level sensor according to claim 6, characterized in that: A telescopic plate is fixedly connected to the bottom inner side of the collection frame, and the top of the telescopic plate is fixedly connected to the bottom of the support plate. The screw is located on the inner side close to the telescopic plate. A second sliding groove matching the collection frame is opened at the bottom inner side of the collection groove. The collection frame is slidably connected to the inner wall of the collection groove through the second sliding groove.

8. A water dispenser with a photoelectric liquid level sensor according to claim 6, characterized in that: The inner wall of the collection frame is provided with a first slot, which extends into the base. The inner wall of the first slot is provided with a second slot. The inner side of the first slot is provided with a circular groove. A retaining spring is installed on the inner side of the circular groove. A first retaining block is engaged with the inner side of the first slot. A second retaining block that matches the second slot is fixedly connected to the outer side of the first retaining block. The second retaining block is engaged with the inner side of the circular groove by a retaining spring. A sealing block is fixedly connected to the other side of the first retaining block. A second protrusion is fixedly connected to the other side of the sealing block. The corner of the second protrusion is arc-shaped.

9. A water dispenser with a photoelectric liquid level sensor according to claim 6, characterized in that: A protective door is hinged to the front of the base, covering the front of the collection tank. A door handle is installed on the front of the protective door, with the corners of the door handle being arc-shaped. A rectangular opening is provided on the front of the protective door, communicating with the inside of the collection tank. A transparent glass is fixedly connected to the inside of the rectangular opening, covering the inside of the rectangular opening.

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