Water level monitoring device and humidifier

Abstract

The utility model discloses a water level monitoring device and humidifier. The water level monitoring device includes main part and barometric pressure monitoring spare, and the inside of main part forms the communicating waterway, monitoring waterway and the communicating port for connecting water storage tank, and monitoring waterway and communicating port communicate with communicating waterway respectively, and barometric pressure monitoring spare sets up at least part in the inside of monitoring waterway, and the one end of monitoring waterway away from communicating waterway forms the sealing structure. When the water level in water storage tank rises, the water level in monitoring waterway also rises. Because of sealing structure, the air cavity will be formed in the sealing end of monitoring waterway, and the air cavity will be compressed gradually along with the rising of water level in monitoring waterway, and the air pressure in it rises, and vice versa. Barometric pressure monitoring spare monitors the air pressure in air cavity. The water level height of water storage tank is highly related with the air pressure size of air cavity, and the specific corresponding relation can be determined through experiment in advance to ensure the monitoring precision. The price of barometric pressure sensor is relatively low, and the production cost can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of humidifier technology, and in particular to a water level monitoring device and a humidifier. Background Technology

[0002] Humidifiers are essential household appliances in people's daily lives. When the climate becomes dry, the indoor air also becomes dry, causing discomfort. During use, the water in the humidifier's tank is consumed, and users need to refill the tank promptly when it runs out. Therefore, it's necessary to monitor the remaining water level regularly to determine how much longer it can be used. Current humidifiers include water level detection devices. High-precision water level detection devices are often complex and expensive to manufacture, while simpler devices, although cheaper to produce, lack sufficient accuracy. Utility Model Content

[0003] To address the problem that existing technologies struggle to balance manufacturing costs and monitoring accuracy in water level monitoring, this invention provides a water level monitoring device and a humidifier.

[0004] This application provides a water level monitoring device, including a main body and a pressure monitoring component. The main body has a connecting water channel, a monitoring water channel, and a connecting port for connecting to a water storage tank. The monitoring water channel and the connecting port are respectively connected to the connecting water channel. The pressure monitoring component is at least partially disposed inside the monitoring water channel. A sealing structure is formed at the end of the monitoring water channel away from the connecting water channel.

[0005] In some embodiments, the main body includes a U-shaped pipe for forming a connecting waterway and a monitoring pipe for forming a monitoring waterway. The U-shaped pipe has a first opening and a second opening that are interconnected. The monitoring pipe is connected to the first opening, and the second opening is the connecting port.

[0006] In some embodiments, the U-shaped tube includes a horizontal portion, a first vertical portion, and a second vertical portion, the first vertical portion and the second vertical portion being connected to opposite ends of the horizontal portion, the first opening being formed at the end of the first vertical portion away from the horizontal portion, and the second opening being formed at the end of the second vertical portion away from the horizontal portion.

[0007] In some embodiments, the U-shaped tube has a third opening, which communicates with the horizontal portion;

[0008] The main body also includes a plug, which is detachably disposed at the third opening.

[0009] In some embodiments, the water level monitoring device further includes a temperature monitoring element, which is at least partially disposed inside the monitoring waterway.

[0010] This application provides a humidifier, including the aforementioned water level monitoring device, a base, and a water storage tank. The base is provided with an assembly part for assembling the water level monitoring device. Connected to the base, the water storage tank has a water outlet channel for connecting to the communication port.

[0011] In some embodiments, the humidifier further includes a drain structure for controlling the opening or closing of the water outlet channel, the drain structure being disposed at the connection between the water level monitoring device and the water storage tank.

[0012] In some embodiments, the drainage structure includes a support member disposed on the water level monitoring device or base and an elastic sealing member movably disposed on the water storage tank;

[0013] When the water storage tank is connected to the water level monitoring device, the elastic seal undergoes elastic deformation under the resistance of the abutment, so that the drainage structure is in the open state. When the water storage tank is separated from the water level monitoring device, the abutment separates from the movable seal, and the elastic seal returns to its original state, so that the drainage structure is in the closed state.

[0014] In some embodiments, the resilient seal includes a pin, a gasket, and an elastic element. The gasket is connected to the pin and abuts against the inner side of the water outlet channel. The pin is movably disposed in the water outlet channel. One end of the elastic element abuts against the inner wall of the water outlet channel, and the other end abuts against the pin, so as to maintain the gasket abutting against the inner side of the water outlet channel.

[0015] In some embodiments, the base includes a bottom and a side portion disposed in a vertical direction, the bottom and the side portion being connected, and the communication opening being disposed at the top of the bottom;

[0016] Relative to the bottom, the monitoring waterway extends vertically along the side, the water storage tank is located at the top of the bottom, and the connecting port is connected to the bottom of the water storage tank.

[0017] Compared with existing technologies, the water level monitoring device provided by this utility model has the following advantages: the monitoring waterway and the water storage tank are connected by a connecting waterway. Due to the principle of communicating vessels, the water level in the monitoring waterway will approach the water level in the water storage tank. The monitoring waterway has a one-way open structure, and the internal chambers of the monitoring waterway and the water storage tank cannot form a complete communicating vessel structure through the connecting waterway. When the water level in the water storage tank rises, the water level in the monitoring waterway also rises. However, since the end of the monitoring waterway away from the connecting waterway is sealed, an air cavity is formed at the sealed end of the monitoring waterway. This air cavity is gradually compressed as the water level in the monitoring waterway rises, and its internal air pressure rises, and vice versa. Combined with an air pressure monitoring component, the air pressure in the air cavity can be monitored, thereby reflecting the water volume inside the water storage tank. The air pressure in the air cavity changes in tandem with the water level in the water storage tank. The correspondence between the water level in the water storage tank and the air pressure in the air cavity can be determined experimentally beforehand to ensure monitoring accuracy. Barometric pressure sensors are relatively inexpensive, which can reduce production costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a humidifier provided in one embodiment of this application;

[0019] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional cross-section after being cut along the MM section line;

[0020] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 4 yes Figure 1 A schematic diagram of the cross-section after being cut along the MM section line;

[0022] Figure 5 yes Figure 4 A schematic diagram of the structure after removing the water storage tank;

[0023] Figure 6 This is a schematic diagram of the structure of a water level monitoring device provided in one embodiment of this application;

[0024] Figure 7 This is a schematic diagram of the mating structure of the water storage tank and the elastic seal provided in one embodiment of this application;

[0025] Figure 8 yes Figure 7 Enlarged schematic diagram of the structure at point B;

[0026] Figure 9 yes Figure 8 A schematic diagram of the structure after the elastic seal is separated;

[0027] Figure 10 This is a control logic diagram of an MCU module provided in one embodiment of this application.

[0028] 100. Water level monitoring device; 11. Main body; 111. U-shaped tube; 1111. Horizontal part; 1112. First vertical part; 1113. Second vertical part; 01. First opening; 02. Second opening; 03. Third opening; 112. Monitoring tube; 113. Plug; 101. Connecting waterway; 102. Monitoring waterway; 103. Connecting port; 12. Air pressure monitoring component; 121. Sealing structure; 200. Sealing body; 21. Bottom; 22. Side; 221. Buckle; 201. Assembly part; 300. Water storage tank; 31. Box body; 32. Water outlet connector; 301. Water outlet channel; 04. Recess; 05. Protrusion; 400. Drainage structure; 41. Supporting component; 42. Elastic sealing component; 421. Pin; 422. Sealing gasket; 423. Elastic component; 500. Sealing ring. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0034] The present invention will now be described in further detail with reference to the accompanying drawings.

[0035] like Figure 1 A water level monitoring device 100 is shown, comprising a main body 11 and a pressure monitoring component 12. The main body 11 has a connecting water channel 101, a monitoring water channel 102, and a connecting port 103 for connecting a water storage tank 300. The monitoring water channel 102 and the connecting port 103 are respectively connected to the connecting water channel 101. It should be noted that the water level monitoring device 100 can be used to monitor the remaining water level in the humidifier's water storage tank 300. The water storage tank 300 can be connected to the connecting port 103 via a sealed plug-in or spiral connection. When the water storage tank 300 is connected to the connecting port 103, the water storage tank 300 will be connected to the connecting water channel 101. At this time, the monitoring water channel 102 will be connected to the internal chamber of the water storage tank 300 through the connecting water channel 101. According to the principle of communicating vessels, the water level in the monitoring water channel 102 will tend to be the same as the water level in the water storage tank 300. Please refer to [link to relevant documentation]. Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, the monitoring waterway 102 extends vertically upwards, which is the direction in which the water level in the water storage tank 300 and the monitoring waterway 102 rises or falls. When the water level in the water storage tank 300 decreases, the water level in the monitoring waterway 102 also decreases.

[0036] The air pressure monitoring element 12 is at least partially disposed inside the monitoring waterway 102; a sealing structure 121 is formed at the end of the monitoring waterway 102 away from the connecting waterway 101. Figure 4 , Figure 5As shown, the sealing structure 121 can be the air pressure monitoring component 12 itself. The air pressure monitoring component 12 is located at the end of the monitoring waterway 102 away from the connecting waterway 101 and seals the monitoring waterway 102. The air pressure monitoring component 12 can seal the monitoring waterway 102 through interference fit or threaded connection, so that the monitoring waterway 102 forms a structure with only one open end. With this design, when the monitoring waterway 102 is connected to the water storage tank 300 through the connecting waterway 101, due to the principle of communicating vessels, the water level in the monitoring waterway 102 will approach the water level in the water storage tank 300. The water level in the monitoring waterway 102 is related to the water level in the water storage tank 300. That is, when the water level in the water storage tank 300 rises, the water level in the monitoring waterway 102 also rises by a certain amount, correspondingly increasing the air pressure in the air chamber. When the water level in the water storage tank 300 falls, the water level in the monitoring waterway 102 also falls by a certain amount, correspondingly decreasing the air pressure in the air chamber. The relationship between the water level in the water tank 300 and the air pressure in the air chamber can be determined experimentally beforehand to ensure monitoring accuracy. However, because the monitoring channel 102 is a one-way open structure, the monitoring channel 102 and the internal chambers of the water tank 300 cannot form a completely communicating vessel structure, which results in the following technical effects:

[0037] When the water level in the water storage tank 300 rises, the water level in the monitoring channel 102 also rises. Since the end of the monitoring channel 102 furthest from the connecting channel 101 is sealed, an air chamber is formed at this sealed end. Let the air pressure in this chamber be P. The air chamber is gradually compressed as the water level in the monitoring channel 102 rises, causing P to increase, and vice versa. Therefore, P changes according to the water level in the water storage tank 300: when the water level inside the water storage tank 300 rises, P increases; when the water level inside the water storage tank 300 falls, P decreases.

[0038] Through the above design, combined with the air pressure monitoring element 12, the air pressure monitoring element 12 can be a type of air pressure sensor. The side of the air pressure monitoring element 12 used for monitoring air pressure is connected to the air chamber, allowing monitoring of P, and thus reflecting the water level inside the water storage tank 300. In some existing water level monitoring devices with high detection accuracy, ultrasonic sensors are typically used. Although ultrasonic sensors have high monitoring accuracy, they are more expensive than air pressure sensors. Therefore, the water level monitoring device 100 provided in this application uses an air pressure sensor to monitor the water level, ensuring monitoring accuracy while reducing the production cost of the device.

[0039] It is understood that the water level monitoring device 100 provided in this application also includes an MCU module. The MCU module is electrically connected to the air pressure monitoring device 12. The air pressure monitoring device 12 transmits the monitored air pressure signal to the MCU module. The MCU module converts the air pressure signal into an electrical signal and processes it to calculate the current water level in the water storage tank 300. By processing and calculating the water level, the MCU module can determine whether it is within the normal range. If it detects that the water level in the water storage tank 300 is too low (i.e., insufficient remaining water) or exceeds the predetermined maximum water level, it can issue an alarm to remind the user of the current water level status.

[0040] Specifically, when the water level inside the water tank 300 is at its maximum value, P is set to Pmax; when the water level inside the water tank 300 is at its minimum value, P is set to Pmin. In actual use, when the air pressure monitoring device 12 detects that P is greater than Pmax or less than Pmin, the MCU module will issue an alarm to remind the user that the water level is full or that water needs to be added.

[0041] The technical details of each component will be introduced below.

[0042] In some implementations, such as Figure 4 , Figure 5 , Figure 6 As shown, the main body 11 includes a U-shaped pipe 111 for forming a connecting waterway 101 and a monitoring pipe 112 for forming a monitoring waterway 102. The U-shaped pipe 111 has a first opening 01 and a second opening 02 that are interconnected. The monitoring pipe 112 is connected to the first opening 01, and the second opening 02 is the connecting port 103. As the name suggests, the U-shaped pipe 111 is U-shaped, and the first opening 01 and the second opening 02 are the two ports of the U-shaped pipe 111. The monitoring pipe 112 can be connected to the first opening 01 of the U-shaped pipe 111 by means of adhesive connection, interference fit connection, or integral connection, and the second opening 02 is used to form the connecting port 103. Through the above design, the monitoring pipe 112 and the water storage tank 300 are respectively connected to the two ports of the U-shaped pipe 111 to form a communicating vessel structure. When the water storage tank 300 is connected to the connecting port 103, the water level in the monitoring pipe 112 will be linked to the water level change in the water storage tank 300. Since the end of the monitoring tube 112 away from the U-shaped tube 111 is blocked, when the water level in the monitoring tube 112 changes in conjunction with the water level in the water tank 300, it will cause a change in the air pressure inside the monitoring tube 112. Thus, the water volume inside the water tank 300 can be monitored indirectly and accurately by monitoring the change in air pressure.

[0043] In some implementation methods, see [reference] Figure 4 , Figure 5 , Figure 6To understand, the U-shaped tube 111 includes a horizontal portion 1111, a first vertical portion 1112, and a second vertical portion 1113. The first vertical portion 1112 and the second vertical portion 1113 are respectively connected to opposite ends of the horizontal portion 1111. A first opening 01 is formed at the end of the first vertical portion 1112 away from the horizontal portion 1111, and a second opening 02 is formed at the end of the second vertical portion 1113 away from the horizontal portion 1111. Taking the horizontal portion 1111 as a reference when it is placed horizontally, the first opening 01 and the second opening 02 are both oriented upwards. Figure 4 , Figure 5 , Figure 6 In the humidifier, the first vertical section 1112 and the second vertical section 1113 are arranged in the same direction. When the water level monitoring device 100 is applied to a humidifier, both the first vertical section 1112 and the second vertical section 1113 are vertically upward relative to the bottom of the humidifier, and correspondingly, the opening directions of the first opening 01 and the second opening 02 are also vertically upward. This arrangement ensures that the communication direction between the monitoring tube 112 and the water storage tank 300 is vertical, forming a communicating vessel structure.

[0044] In some implementation methods, see [reference] Figure 4 , Figure 5 To understand this, in the vertical direction (the same as described above), the first vertical section 1112 and the second vertical section 1113 are at the same height, thus placing the first opening 01 and the second opening 02 at the same height. In practical applications, before assembling the water tank 300, some water can be reserved in the U-tube, ensuring that the water level in the U-tube 111 completely submerges the horizontal section 1111 and reaches a position close to the first opening 01 and the second opening 02. In this way, when the water tank 300 is connected to the channel assembly port, because the U-tube 111 is filled with water and contains no air, no air from the U-tube 111 will be forced into the monitoring tube 112 when the water tank 300 is initially connected to the channel connection port 103, preventing an increase in the air pressure in the monitoring tube 112. This ensures the stability of the initial air pressure in the monitoring tube 112 and improves the accuracy of the monitoring results.

[0045] In some embodiments, the U-shaped tube 111 has a third opening 03, which communicates with the horizontal portion 1111. For example... Figure 4 , Figure 5 As shown, in the vertical direction (the same as the vertical direction mentioned above), the third opening 03 connects to the lowest point of the horizontal section 1111. In actual use, because the U-shaped tube 111 is U-shaped, the water accumulated in the horizontal section 1111 is not easily drained. The third opening 03 can easily drain the water completely from the U-shaped tube 111, preventing the water from accumulating, deteriorating, and producing an odor when not in use for a long time.

[0046] In addition to the aforementioned effects, the third opening 03 also facilitates core pulling during production and processing, thereby making it easier to process and shape the U-shaped tube 111.

[0047] The main body 11 also includes a plug 113, which is detachably installed at the third opening 03. The plug 113 can be made of an elastic material, such as silicone or rubber, and is installed at the third opening 03 by interference fit or threaded tightening. When it is necessary to drain the water from the U-shaped pipe 111, the plug 113 can be removed.

[0048] In some embodiments, to further improve the detection accuracy, the water level monitoring device 100 provided in this application also includes a temperature monitoring element. The temperature monitoring element is at least partially disposed inside the monitoring water channel 102, or it may be disposed outside the monitoring water channel 102. It is understood that with temperature changes, the air pressure in the monitoring tube 112 will undergo slight changes, therefore the ambient temperature will also have a slight impact on the monitoring results of the air pressure monitoring element 12. The temperature monitoring element can be a temperature sensor, electrically connected to the MCU module. The MCU module can combine and analyze the temperature data monitored by the temperature monitoring element and the air pressure data monitored by the air pressure monitoring element 12 to correct the water level information of the water storage tank 300, thereby further improving the accuracy of the water level monitoring device 100 provided in this application. It is understood that the correspondence between temperature, air pressure, and water level can be determined in advance through experiments; this is prior art and will not be elaborated upon here.

[0049] Specifically, such as Figure 9 As shown, the aforementioned MCU module includes a display module, an alarm module, and an analysis module. Both the display and alarm modules are electrically connected to the analysis module. The air pressure monitoring element 12 and the temperature monitoring element are also electrically connected to the analysis module. The analysis module has a pre-defined analysis program that can correct the air pressure data using temperature data, thereby outputting accurate water level information, which is then displayed through the display module. The alarm module is used to alert the user of excess or insufficient water levels via light, sound, or other means when the corrected air pressure data is greater than Pmax or less than Pmin.

[0050] like Figure 1 , Figure 2 As shown, this application provides a humidifier including the aforementioned water level monitoring device 100, a base 200, and a water storage tank 300. The base 200 is provided with an assembly part 201 for assembling the water level monitoring device 100. The water storage tank 300 is connected to the base 200 and has a water outlet channel 301 for connecting to a communication port 103. The aforementioned water level monitoring device 100 utilizes the principle of communicating vessels, using changes in air pressure to monitor the water level in the water storage tank 300 (for detailed monitoring principles, please refer to the description of the water level monitoring device 100 provided in this application above). This provides accurate monitoring data while also reducing production costs.

[0051] In some implementations, such as Figure 1 , Figure 2 , Figure 3 As shown, the humidifier provided in this application also includes a drain structure 400 for controlling the opening or closing of the water outlet channel 301. The drain structure 400 is located at the connection between the water level monitoring device 100 and the water storage tank 300. When the water storage tank 300 is connected to the water level monitoring device 100, the connection or disconnection between the water storage tank 300 and the connecting water channel 101 can be controlled through the drain structure 400. When the water storage tank 300 is connected to the connecting water channel 101, the water storage tank 300 and the monitoring water channel 102 can form a communicating vessel structure. The drain structure 400 facilitates the disassembly and assembly of the water storage tank 300, preventing water leakage.

[0052] Furthermore, such as Figure 2 , Figure 3 As shown, the drainage structure 400 includes a support member 41 installed on the water level monitoring device 100 or the base 200 and an elastic sealing member 42 movably installed on the water storage tank 300.

[0053] When the water storage tank 300 is connected to the water level monitoring device 100, the elastic seal 42 undergoes elastic deformation and / or displacement under the resistance of the supporting member 41, so that the drainage structure 400 is in the open state. When the water storage tank 300 is separated from the water level monitoring device 100, the supporting member 41 separates from the elastic seal 42, and the elastic seal 42 returns to its original state, so that the drainage structure 400 is in the closed state. Through the above design, the water storage tank 300 can be automatically connected and closed with the connecting waterway 101 when the water storage tank 300 is assembled. When the water storage tank 300 is assembled onto the base 200 and connected to the communication port 103 of the water level monitoring device 100, the retaining member 41 can abut against the elastic seal 42, causing the elastic seal 42 to deform elastically and open the water outlet channel 301. When the water storage tank 300 is removed from the water level monitoring device, the retaining member 41 separates from the elastic seal 42, and the elastic seal 42 returns to its original state to seal the water outlet channel 301. No manual opening or closing is required, making it convenient and quick to use.

[0054] Specifically, such as Figure 2 , Figure 3 and Figure 7 , Figure 8As shown, the aforementioned elastic seal 42 includes a pin 421, a sealing gasket 422, and an elastic element 423. The sealing gasket 422 is connected to the pin 421 and abuts against the inner side of the water outlet channel 301. The pin 421 is movably disposed in the water outlet channel 301. One end of the elastic element 423 abuts against the inner wall of the water outlet channel 301, and the other end abuts against the pin 421, thereby maintaining the sealing gasket 422 against the inner side of the water outlet channel 301. In practical applications, the elastic element 423 can be a spring, and the sealing gasket 422 can be made of a relatively hard silicone or rubber material. Figure 7 , Figure 8 As shown, in its natural state, the elastic element 423 causes the sealing gasket 422 to abut against the side of the water outlet channel 301 near the interior of the water storage tank 300. Under water pressure, the sealing gasket 422 abuts more tightly, thus facilitating the closure of the water outlet channel 301. When the water storage tank 300 is connected to the water level monitoring device, the holding element 41 enters the water outlet channel 301, lifting the ejector pin 421. The elastic element 423 is compressed, and the sealing gasket 422 is lifted along with the ejector pin 421, causing the water outlet channel 301 to open. Through the above structure and process, the water storage tank 300 achieves automatic connection and automatic closure during assembly.

[0055] To ensure that water can flow normally through the outlet channel 301, the inner wall of the outlet channel 301 has a protrusion 05 and a recess 04. The protrusion 05 and the recess 04 are spaced apart and arranged around the inner wall of the outlet channel 301. The side wall of the ejector pin 421 contacts the protrusion 05 and forms a water flow channel with the recess 04. In this way, it is effectively ensured that water can flow normally through the outlet channel 301.

[0056] In some implementations, such as Figure 1 , Figure 2 As shown, the base 200 includes a bottom 21 and a side portion 22 arranged vertically (when the bottom 21 is placed horizontally, the side portion 22 is arranged vertically perpendicular to the horizontal direction). The bottom 21 and the side portion 22 are connected, and can be a one-piece structure. A connecting port 103 is provided at the top of the bottom 21.

[0057] Please refer to it again. Figure 1 , Figure 2 When the bottom 21 is placed horizontally, the monitoring waterway 102 extends vertically along the side 22, the water storage tank 300 is located at the top of the bottom 21, and the connecting port 103 is connected to the bottom of the water storage tank 300.

[0058] This design allows the water level in the monitoring channel 102 to more directly reflect the amount of water in the storage tank 300. Since the connecting port 103 is connected to the bottom of the storage tank 300, the water level in the storage tank 300 can be completely reflected in the monitoring channel 102 through the principle of communicating vessels, which helps to improve the accuracy of water level monitoring in the storage tank 300.

[0059] It is understood that in this embodiment, the monitoring waterway 102 is the lumen of the monitoring pipe 112, and the connecting port 103 is the second opening 02 of the U-shaped pipe 111. Figure 1 , Figure 2 As shown, at least one buckle 221 for securing the monitoring tube 112 is provided on the side 22 along the vertical direction. The monitoring tube 112 has a certain length. These buckles 221 can fix the monitoring tube 112 to the side 22 to prevent the monitoring tube 112 from bending or falling off.

[0060] Please refer to it again. Figure 1 , Figure 2 The top of the bottom 21 is a flat structure, and the side 22 is set perpendicular to the top surface of the bottom 21. When the water tank 300 is set on the top surface of the bottom 21, the side 22 can provide lateral support for the water tank 300, making the water tank 300 more stable.

[0061] In some implementations, such as Figure 2 , Figure 3 As shown, the water storage tank 300 includes a tank body 31 and a water outlet connector 32. The water outlet connector 32 has a water outlet channel 301 formed inside it. The water outlet connector 32 is located at the bottom of the tank body 31 and protrudes from the surface of the tank body 31. When the water storage tank 300 is connected to the water level monitoring device 100, the water outlet connector 32 is inserted into the communication port 103. A sealing ring 500 is arranged around the outside of the water outlet connector 32, and the sealing ring 500 abuts against the inner wall of the communication port 103 and the outer wall of the water outlet connector 32. This structure improves the sealing performance of the communication structure between the water storage tank 300 and the water level monitoring device 100, preventing leakage after the water storage tank 300 is connected to the water level monitoring device 100.

[0062] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0063] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0064] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water level monitoring device, characterized in that, include: The main body (11) has a connecting waterway (101), a monitoring waterway (102) and a connecting port (103) for connecting a water storage tank (300) inside the main body (11). The monitoring waterway (102) and the connecting port (103) are respectively connected to the connecting waterway (101). A pressure monitoring device (12) is at least partially disposed inside the monitoring waterway (102); The end of the monitoring waterway (102) away from the connecting waterway (101) has a sealing structure (121).

2. The water level monitoring device according to claim 1, characterized in that, The main body (11) includes a U-shaped pipe (111) for forming a connecting waterway (101) and a monitoring pipe (112) for forming a monitoring waterway (102). The U-shaped pipe (111) has a first opening (01) and a second opening (02) that are interconnected. The monitoring pipe (112) is connected to the first opening (01), and the second opening (02) is the connecting port (103).

3. The water level monitoring device according to claim 2, characterized in that, The U-shaped tube (111) includes a horizontal portion (1111), a first vertical portion (1112), and a second vertical portion (1113). The first vertical portion (1112) and the second vertical portion (1113) are respectively connected to the opposite ends of the horizontal portion (1111). The first opening (01) is formed at the end of the first vertical portion (1112) away from the horizontal portion (1111), and the second opening (02) is formed at the end of the second vertical portion (1113) away from the horizontal portion (1111).

4. The water level monitoring device according to claim 3, characterized in that, The U-shaped tube (111) has a third opening (03), and the third opening (03) is connected to the horizontal part (1111); The main body (11) also includes a plug (113), which is detachably disposed at the third opening (03).

5. The water level monitoring device according to claim 1, characterized in that, The water level monitoring device (100) also includes a temperature monitoring element (13), which is at least partially disposed inside the monitoring waterway (102).

6. A humidifier, characterized in that, include: The water level monitoring device (100) as described in any one of claims 1 to 5; The base (200) is provided with an assembly part (201) for assembling the water level monitoring device (100); A water storage tank (300) is connected to the base (200) and has a water outlet channel (301) for connecting to the communication port (103).

7. The humidifier according to claim 6, characterized in that, The humidifier also includes a drain structure (400) for controlling the opening or closing of the water outlet channel (301), the drain structure (400) being located at the connection between the water level monitoring device (100) and the water storage tank (300).

8. The humidifier according to claim 7, characterized in that, The drainage structure (400) includes a support member (41) disposed on the water level monitoring device (100) or the base (200) and an elastic sealing member (42) movably disposed on the water storage tank (300); When the water storage tank (300) is connected to the water level monitoring device (100), the elastic seal (42) undergoes elastic deformation under the resistance of the abutment (41) so that the drainage structure (400) is in the open state. When the water storage tank (300) is separated from the water level monitoring device (100), the abutment (41) separates from the elastic seal (42), and the elastic seal (42) returns to its original state so that the drainage structure (400) is in the closed state.

9. The humidifier according to claim 8, characterized in that, The elastic seal (42) includes a pin (421), a sealing gasket (422), and an elastic element (423). The sealing gasket (422) is connected to the pin (421) and abuts against the inner side of the water outlet channel (301). The pin (421) is movably disposed in the water outlet channel (301). One end of the elastic element (423) abuts against the inner wall of the water outlet channel (301), and the other end abuts against the pin (421) to maintain the sealing gasket (422) abutting against the inner side of the water outlet channel (301).

10. The humidifier according to claim 6, characterized in that, The seat (200) includes a bottom (21) and a side (22) arranged in a vertical direction, the bottom (21) and the side (22) are connected, and the communication port (103) is arranged at the top of the bottom (21); Relative to the bottom (21), the monitoring waterway (102) extends vertically along the side (22), the water storage tank (300) is located at the top of the bottom (21), and the connecting port (103) is connected to the bottom of the water storage tank (300).

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