A pet water fountain
By combining a pressure water level sensor and an atmospheric pressure detection sensor in the pet water fountain, the problem of inaccurate water level detection under different air pressures has been solved, achieving more accurate water level display and convenient water changing operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- VOOCOO INNOVATIONS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing pet water fountains cannot accurately detect the weight and level of water under different air pressures, affecting the accuracy of the detection.
By combining a pressure water level sensor and an atmospheric pressure detection sensor, and through a control module to correct atmospheric pressure interference in real time, stepless water level detection is achieved.
It improves the accuracy and convenience of water level detection, reduces the risk of leakage, and enhances the user experience.
Smart Images

Figure CN224504332U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pet feeding devices, and more particularly to a pet water dispenser. Background Technology
[0002] A pet water fountain is a machine used to provide drinking water for pets.
[0003] Existing pet water fountains include a water storage tank and a weight sensor. The weight sensor detects the total weight of the water storage tank to determine the weight of the water inside, and thus the water level. However, different air pressures can affect the accuracy of the weight sensor, making it impossible to accurately detect the weight of the water and the water level.
[0004] Therefore, it is necessary to design a pet water fountain to more accurately detect the weight and water level of the water in the pet water fountain.
[0005] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content
[0006] This utility model provides a pet water fountain to further improve the convenience of changing the water.
[0007] To achieve the above objectives, this utility model provides the following technical solution: A pet water fountain includes a base, a purified water storage tank, and a control module; A pressure water level sensor is installed at the bottom of the water purification storage tank, and an atmospheric pressure detection sensor is installed on the base. The control module is electrically connected to the pressure level sensor and the atmospheric pressure detection sensor, respectively.
[0008] Optionally, the bottom of the purified water storage tank is provided with a water outlet, and a leak-proof component is installed in the water outlet. The leak-proof component is used to seal the water outlet when the base and the purified water storage tank are separated.
[0009] Optionally, the leak-proof component is a backflow preventer valve component; The base has a water supply channel inside and a water inlet connector on the base. The water inlet hole of the water supply channel is located on the water inlet connector. The leak-proof component is detachably and sealedly connected to the water inlet connector. When the leak-proof component is subjected to the suction force within the water supply channel, it allows the water outlet to connect with the water supply channel.
[0010] Optionally, the water outlet includes a first connecting hole and a second connecting hole connected in sequence, wherein the diameter of the second connecting hole is larger than that of the first connecting hole; The leak-proof component includes a water tube with one end embedded in the second connection hole, a sealing ball installed in the inner hole of the water tube, and a hollow elastic element installed in the water tube, wherein the inner hole of the water tube is connected to the water inlet connector. One end of the hollow elastic element is fixed in the water-passing cylinder, and the other end abuts against the sealing ball; the sealing ball seals the first connecting hole under the action of the hollow elastic element.
[0011] Optionally, the leak-proof assembly further includes an elastic sealing sheet, which is installed at the bottom of the water-passing cylinder and fits against the purified water storage tank; The elastic sealing sheet has a through hole that connects to the first connecting hole, and the wall of the through hole can fit against the sealing ball.
[0012] Optionally, an elastic plate is installed in the inner hole of the water inlet connector; The elastic plate has a punctureable area that can be pierced by the leak-proof component; When the leak-proof component is removed from the punctureable area, the punctured part elastically recovers so that the elastic plate covers the inner hole of the water inlet connector.
[0013] Optionally, the punctureable area is circular and divided into several elastic sector-shaped areas.
[0014] Optionally, the pet water fountain also includes an infrared liquid level detection component and a water pump component for suction of the water supply channel; The control module is electrically connected to the infrared liquid level detection component and the water pump component, respectively.
[0015] Optionally, the top of the purified water storage tank is provided with a tank opening, and the top of the purified water storage tank is equipped with a tank cover for covering the tank opening; The top of the water purification storage tank is provided with a mounting slot. The tank cover includes a cover body and an insert body. The insert body is detachably installed in the mounting slot, and the cover body and the insert body are rotatably connected.
[0016] Optionally, the leak-proof assembly includes a top sealing cap, a connecting post connecting the top sealing cap, and an elastic element mounted on the connecting post, wherein the top sealing cap can completely cover the water outlet. The top of the elastic element is connected to a clean water storage tank, and the bottom is connected to the connecting column. The base is provided with a lifting column for lifting the connecting column so that the top sealing cover does not seal the water outlet.
[0017] Compared with the prior art, the present invention has the following beneficial effects: The pet water dispenser provided by this utility model is electrically connected to a pressure water level sensor and an atmospheric pressure detection sensor through a control module. The pressure water level sensor can detect the weight of water in the purified water storage tank, and the atmospheric pressure detection sensor can detect the real-time air pressure. The control module can eliminate air pressure interference based on the real-time air pressure, thereby more accurately determining the weight and water level of the purified water storage tank, and achieving the purpose of stepless detection of the water level in the purified water storage tank.
[0018] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional schematic diagram of the pet water dispenser provided in this embodiment of the utility model; Figure 2 This is a top view schematic diagram of the pet water dispenser provided in this embodiment of the utility model; Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of a pet water fountain along line AA; Figure 4 This is a front view schematic diagram of the pet water dispenser provided in this embodiment of the utility model; Figure 5 yes Figure 4 A cross-sectional structural diagram of a pet water fountain along the BB line; Figure 6 yes Figure 5 An enlarged view of position A in the middle; Figure 7 This is a cross-sectional structural diagram of the elastic plate provided in an embodiment of the present utility model; Figure 8 This is a top view schematic diagram of the elastic plate provided in an embodiment of the present utility model; Figure 9 yes Figure 4 Cross-sectional view of the pet water fountain along line CC Figure 10 This is a side view schematic diagram of another pet water dispenser provided in an embodiment of this utility model; Figure 11 yes Figure 10 A cross-sectional structural diagram of a pet water fountain; Figure 12 yes Figure 11 An enlarged view of position B in the middle.
[0021] Reference numerals: 1. Base; 11. Water supply channel; 101. Water inlet connector; 2. Clean water storage tank; 201. Mounting slot; 21. Water outlet; 3. Leak-proof component; 211. First connecting hole; 212. Second connecting hole; 301. Elastic sealing sheet; 31. Water passage cylinder; 32. Sealing ball; 33. Hollowed-out elastic element; 34. Piercing cylinder; 5. Elastic plate; 51. Pierceable area; 52. Elastic sector area; 6. Infrared liquid level detection component; 7. Hall sensor; 8. Magnetic element; 9. Tank cover; 91. Cover body; 92. Insert body; 100. Pressure water level sensor; 200. Atmospheric pressure detection sensor; 001. Top sealing cover; 002. Connecting column; 003. Elastic element; 004. Lifting column. Detailed Implementation
[0022] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0023] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0024] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0025] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0026] In this application, 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 actual quantity, hierarchy or order relationship between these entities or operations.
[0027] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0028] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0029] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0030] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0031] In view of the aforementioned deficiencies in existing pet water fountains, the applicant, based on years of extensive practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with theoretical application, actively researched and innovated to create a solution that overcomes the shortcomings of existing technologies, making pet water fountains more practical. Through continuous research, design, and repeated prototype production and improvements, this utility model, possessing genuine practical value, was finally created.
[0032] Please refer to Figures 1 to 9 , or as Figure 10 and Figure 11 As shown in the figure, this utility model embodiment provides a pet water dispenser, including a base 1, a purified water storage tank 2, and a control module.
[0033] A pressure level sensor 100 is installed at the bottom of the water storage tank 2, and an atmospheric pressure sensor 200 is installed on the base 1. The control module is electrically connected to the pressure level sensor 100 and the atmospheric pressure sensor 200. It should be noted that the water storage tank 2 is in an atmospheric environment, and the buoyancy force it experiences varies depending on the air pressure. In this embodiment, different water levels result in different pressure values detected by the pressure level sensor 100, and different external atmospheric pressures also result in different pressure values detected by the pressure level sensor 100. The control module can accurately determine the water pressure acting on the pressure level sensor 100 based on the pressure value detected by the pressure level sensor 100 and the air pressure value detected by the atmospheric pressure sensor 200, and can convert the water pressure value into a water height value, thus achieving stepless water level detection. The control module can eliminate external air pressure interference based on the detection value of the atmospheric pressure sensor 200, thereby making the water level detected by the pet water fountain more accurate and enabling stepless water level display of the water storage tank 2 of the pet water fountain. In this embodiment, by recording the impact data of different air pressures on the purified water storage tank 2 in the control module, interference can be eliminated based on the impact data.
[0034] Optionally, the bottom of the purified water storage tank 2 is provided with a water outlet 21, and a leak-proof component 3 is installed in the water outlet 21. The leak-proof component 3 is used to seal the water outlet 21 when the base 1 and the purified water storage tank 2 are separated. The leak-proof component 3 is used to prevent water leakage from the bottom of the purified water storage tank 2 when it is lifted.
[0035] Optionally, the leak-proof component 3 is a backflow preventer assembly; the bottom of the purified water storage tank 2 has a water outlet 21, in which the leak-proof component 3 is installed, sealing the water outlet 21; the base 1 has a water supply channel 11 inside, and an inlet connector 101 is provided on the base 1, with the water inlet of the water supply channel 11 located on the inlet connector 101; the leak-proof component 3 is detachably and sealedly connected to the inlet connector 101; when the leak-proof component 3 is subjected to the suction force within the water supply channel 11, the water outlet 21 is allowed to connect to the water supply channel 11. The inlet connector 101 is used to connect the leak-proof component 3 and guide water into the water supply channel 11. The suction force within the water supply channel 11 is generally generated by a water pump assembly.
[0036] like Figure 5 and Figure 6 The leak-proof component 3 can extend out of the bottom of the purified water storage tank 2. In this case, the water inlet connector 101 on the base 1 can be configured as a recessed structure, allowing the leak-proof component 3 to be sealed and inserted into the water inlet connector 101. Alternatively, the leak-proof component 3 may not protrude from the bottom of the purified water storage tank 2. In this case, the protruding tubular portion on the base 1 forms the water inlet connector 101, and the bottom end of the leak-proof component 3 can be inserted into the water inlet connector 101, or the water inlet connector 101 can be inserted into the leak-proof component 3. It should be noted that after the leak-proof component 3 is connected to the water inlet connector 101, under the negative pressure suction of the water pump assembly, the leak-proof component 3 is opened, and purified water flows into the water supply channel 11. It should also be noted that the water inlet connector 101 is generally connected to the water pump assembly through a pipe, and the inner hole of the pipe forms part of the water supply channel 11.
[0037] In this embodiment, the base 1 supports the water purification storage tank 2. When it is necessary to change the water, the water purification storage tank 2 can be lifted directly and taken to the faucet or other water outlet device to collect water. After lifting the water purification storage tank 2, the anti-leakage component 3 keeps the water outlet 21 sealed, and the bottom of the water purification storage tank 2 will not leak. After the water purification storage tank 2 is filled with water, the anti-leakage component 3 and the water inlet connector 101 can be plugged in. There is no need to take the entire pet water fountain with you when changing the water, making the water changing operation simpler and more convenient.
[0038] It should also be noted that the bottom of the water storage tank 2 does not leak when it is lifted, which reduces the cleaning work for users, prevents water from spilling on the ground, and effectively improves the user experience.
[0039] Optionally, the water outlet 21 includes a first connecting hole 211 and a second connecting hole 212 connected in sequence, wherein the diameter of the second connecting hole 212 is larger than that of the first connecting hole 211. The leak-proof component 3 includes a water-passing cylinder 31 with one end embedded in the second connecting hole 212, a sealing ball 32 installed in the inner hole of the water-passing cylinder 31, and a hollow elastic element 33 installed in the water-passing cylinder 31. The inner hole of the water-passing cylinder 31 is connected to the water inlet connector 101. One end of the hollow elastic element 33 is fixed in the water-passing cylinder 31, and the other end abuts against the sealing ball 32. The sealing ball 32 seals the first connecting hole 211 under the action of the hollow elastic element 33. In this embodiment, the hollow elastic element 33 includes a spring or other elastic element with a hollow structure. In this embodiment, when the water pump assembly applies negative pressure, the sealing ball 32 moves downward and compresses the hollow elastic element 33, allowing clean water to flow out. When the water pump assembly stops applying negative pressure, the sealing ball 32 re-seals the first connecting hole 211 under the elastic force of the hollow elastic element 33. It should also be noted that the outer diameter of the sealing ball 32 is smaller than the inner hole of the water-passing cylinder 31, thereby facilitating water discharge.
[0040] Optionally, the leak-proof assembly 3 also includes an elastic sealing sheet 301, which is installed at the bottom of the water-passing cylinder 31 and fits against the purified water storage tank 2. The elastic sealing sheet 301 has a through hole communicating with the first connecting hole 211, and the wall of the through hole can fit against the sealing ball 32. Specifically, the elastic sealing sheet 301 improves the sealing effect of the connection between the water-passing cylinder 31 and the purified water storage tank 2, further reducing the possibility of leakage.
[0041] Optionally, an elastic plate 5 is installed in the inner hole of the water inlet connector 101; the elastic plate 5 has a punctureable area 51, and the water tube 31 is provided with a puncture tube 34 for puncturing the punctureable area 51; when the puncture tube 34 is removed from the punctureable area 51, the punctured part elastically recovers so that the elastic plate 5 covers the inner hole of the water inlet connector 101. The punctureable area 51 can return to its original state and cover the inner hole of the water inlet connector 101, thereby preventing external dust and impurities from entering the water supply channel 11 and reducing the possibility of the water supply channel 11 being contaminated.
[0042] Optionally, the punctureable area 51 is circular and divided into several elastic sector-shaped areas 52. Generally, at least two elastic sector-shaped areas 52 are provided, and at most eight are provided. In this embodiment, as... Figures 7 to 8 It is equipped with six flexible sector areas 52. Figures 7 to 8 The dotted line in the diagram is only used to delineate the area of the pierceable zone 51.
[0043] Optionally, the purified water storage tank 2 is also equipped with several infrared liquid level detection components 6; these components are spaced apart from top to bottom. In the absence of water, the light emitted by the transmitter in the infrared liquid level detection component 6 is received by the receiver. However, when there is water at the location of the infrared liquid level detection component 6, the light is refracted into the liquid, causing the receiver to receive no light signal or only a small amount of light. By monitoring changes in the light signal, the infrared liquid level detection component 6 can determine changes in the water level, thereby achieving a more accurate determination of the water level.
[0044] Optionally, the infrared liquid level detection component 6 includes a transmitter and a receiver; the inner wall of the purified water storage tank 2 is provided with a mounting slot 201, the transmitter is installed in the mounting slot 201, and the receiver is installed on the outer wall of the purified water storage tank 2 facing the corresponding transmitter. Specifically, the mounting slot 201 can prevent large displacement of the transmitter installed inside the purified water storage tank 2, and makes the installation of the transmitter more convenient. In this embodiment, the transmitter is not shown.
[0045] Optionally, the pet water fountain also includes an infrared liquid level detection component 6 and a water pump assembly for suction in the water supply channel 11; the water pump assembly is not shown. The control module is electrically connected to both the infrared liquid level detection component 6 and the water pump assembly. Since the control module is electrically connected to both the infrared liquid level detection component 6 and the water pump assembly, it can accurately determine the water level between two adjacent infrared liquid level detection components 6 by detecting the operating status of the water pump assembly. The control module is connected to a display, enabling a stepless liquid level display function, that is, it can accurately display the water level in the purified water storage tank 2. The water flow rate varies depending on the operating status of the water pump assembly, and the water flow rate data corresponding to different operating states is stored in the control module. Furthermore, any water level deviation that may occur when the water passes through an infrared liquid level detection component 6 will be corrected. The number of infrared liquid level detection components 6 can be three, four, five, six, seven, eight, or even more.
[0046] Optionally, a Hall sensor 7 is installed on the base 1, and a magnetic element 8 is provided on the bottom of the purified water storage tank 2 corresponding to the position of the Hall sensor 7. The arrangement of the Hall sensor 7 and the magnetic element 8 can determine whether the position of the purified water storage tank 2 is accurate.
[0047] Optionally, the top of the purified water storage tank 2 is provided with a tank opening, and a tank cover 9 for covering the tank opening is installed on the top of the purified water storage tank 2; the top of the purified water storage tank 2 is provided with a mounting slot 201, and the tank cover 9 includes a cover body 91 and an insert body 92, the insert body 92 is detachably installed in the mounting slot 201, and the cover body 91 and the insert body 92 are rotatably connected. In this embodiment, the tank cover 9 is simple to disassemble and easy to assemble.
[0048] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A pet water fountain, characterized by, Includes a base (1), a purified water storage tank (2), and a control module; A pressure water level sensor (100) is installed at the bottom of the water storage tank (2), and an atmospheric pressure detection sensor (200) is installed on the base (1). The control module is electrically connected to the pressure water level sensor (100) and the atmospheric pressure detection sensor (200) respectively. It also includes an infrared liquid level detection component (6) and a water pump component for pumping water into the water supply channel (11) in the base (1). Several infrared liquid level detection components (6) are arranged at intervals from top to bottom. The control module is electrically connected to the infrared liquid level detection component (6) and the water pump component respectively.
2. The pet water fountain of claim 1, wherein, The bottom of the water purification storage tank (2) is provided with a water outlet (21), and a leak-proof component (3) is installed in the water outlet (21). The leak-proof component (3) is used to seal the water outlet (21) when the base (1) and the water purification storage tank (2) are separated from each other.
3. The pet water fountain of claim 2, wherein, The leak-proof component (3) is a backflow preventer assembly; The base (1) is provided with a water supply channel (11) inside, and a water inlet plug (101) is provided on the base (1). The water inlet hole of the water supply channel (11) is provided on the water inlet plug (101). The leak-proof component (3) is detachably and sealedly plugged into the water inlet plug (101). When the anti-leakage component (3) is subjected to the suction force in the water supply channel (11), the water outlet (21) is allowed to connect with the water supply channel (11).
4. The pet water fountain of claim 3, wherein, The water outlet (21) includes a first connecting hole (211) and a second connecting hole (212) connected in sequence, wherein the diameter of the second connecting hole (212) is larger than that of the first connecting hole (211). The leak-proof component (3) includes a water tube (31) with one end embedded in the second connection hole (212), a sealing ball (32) installed in the inner hole of the water tube (31), and a hollow elastic element (33) installed in the water tube (31). The inner hole of the water tube (31) is connected to the water inlet plug (101). One end of the hollow elastic element (33) is fixed in the water tube (31), and the other end abuts against the sealing ball (32); the sealing ball (32) seals the first connecting hole (211) under the action of the hollow elastic element (33).
5. The pet water fountain of claim 4, wherein, The leak-proof component (3) also includes an elastic sealing sheet (301), which is installed at the bottom of the water tube (31) and fits against the clean water storage tank (2). The elastic sealing sheet (301) has a through hole that connects to the first connecting hole (211), and the wall of the through hole can fit the sealing ball (32).
6. The pet water fountain of claim 3, wherein, An elastic plate (5) is installed in the inner hole of the water inlet connector (101); The elastic plate (5) has a punctureable area (51) that can be punctured by the leak-proof component (3). When the leak-proof component (3) is removed from the puncturable area (51), the punctured part elastically recovers so that the elastic plate (5) covers the inner hole of the water inlet connector (101).
7. The pet water fountain of claim 6, wherein, The puncturable area (51) is circular and divided into several elastic fan-shaped areas (52).
8. The pet water fountain of claim 1, wherein, The top of the water purification storage tank (2) is provided with a tank opening, and the top of the water purification storage tank (2) is equipped with a tank cover (9) for covering the tank opening. The top of the water purification storage tank (2) is provided with a mounting slot (201). The tank cover (9) includes a cover body (91) and a plug body (92). The plug body (92) is detachably installed in the mounting slot (201), and the cover body (91) and the plug body (92) are rotatably connected.
9. The pet drinking fountain according to claim 2, wherein The leak-proof component (3) includes a top sealing cap (001), a connecting post (002) connecting the top sealing cap (001), and an elastic element (003) installed on the connecting post (002). The top sealing cap (001) can completely cover the water outlet (21). The top of the elastic element (003) is connected to the water storage tank (2), the bottom is connected to the connecting column (002), and the base (1) is provided with a lifting column (004) for lifting the connecting column (002) so that the top sealing cover (001) does not seal the water outlet (21).