Floating nozzle and nasal cavity care device

Abstract

Provided is a floating nozzle (100), comprising a water tank assembly (10), a spraying assembly (30), and a spray head assembly (50). The water tank assembly (10) comprises a liquid storage tank (11) configured for storing a fluid. A first end (301) of the spraying assembly is provided with a spraying port (305), a second end (303) of the spraying assembly passes through the water tank assembly (10) and is in communication with the liquid storage tank (11), and the spraying port (305) is configured for spraying the fluid outwards. The spray head assembly (50) sheathes the spraying assembly (30) and is located outside the water tank assembly (10). A first end (501) of the spray head assembly (50) is provided with a liquid outlet (503), and a flow channel (504) is formed between the spray head assembly (50) and the spraying assembly (30). When the spray head assembly (50) bears a force, the first end (501) of the spray head assembly (50) is configured for moving in a first direction (X) relative to the water tank assembly (10), such that the flow channel (504) is connected. When the external force borne by the spray head assembly (50) is removed, the first end (501) of the spray head assembly (50) is configured for returning relative to the water tank assembly (10), such that the flow channel (504) is disconnected. After the flow channel (504) is disconnected, the liquid sprayed from the spraying port (305) does not flow to the liquid outlet (503) through the flow channel (504) or only a small amount of the liquid sprayed from the spraying port (305) flows to the liquid outlet (503), such that no fluid splashes when the spray head assembly (50) leaves the nasal cavity.

Description

Floating nozzle and nasal care device

[0001] Priority information

[0002] This application claims priority and benefits of patent applications with patent application numbers 2024100613396 and 202420103417X filed with the State Intellectual Property Office of China on January 15, 2024, and the entire text of which is incorporated herein by reference. Technical Field

[0003] The present application relates to the field of cleaning technology, and more specifically, to a floating nozzle and nasal care device. Background Art

[0004] A care device, such as a nasal washer, is a tool that can be used to clean the nasal cavity. It usually uses a certain pressure to send a cleaning liquid into the nostrils so that the cleaning liquid flows through the nasal cavity and is discharged. This will discharge the pathogens and dirt that have accumulated in the nasal cavity, restore the nasal cavity to a normal physiological environment, restore the nasal cavity's self-detoxification function, and achieve the purpose of protecting the nasal cavity. Current care devices require manual control of the fluid's spraying and stopping through buttons. When one end of the nasal care device used to spray the fluid is separated from the nasal cavity, if the user does not stop the fluid spraying in time, the fluid that continues to spray will splash and wet the user's face or clothes.

[0005] Summary of the Invention

[0006] Embodiments of the present application provide a floating nozzle and a nasal care device.

[0007] The floating nozzle of the embodiment of the present application includes a water tank assembly, a spray assembly and a nozzle assembly. The water tank assembly includes a liquid storage tank, and the liquid storage tank is used to store fluid. The first end of the spray assembly is provided with a spray port, the second end of the spray assembly is passed through the water tank assembly and communicated with the liquid storage tank, and the spray port is used to spray fluid outward. The nozzle assembly is sleeved on the spray assembly and is located outside the water tank assembly. The first end of the nozzle assembly is provided with a liquid outlet, and a flow channel is formed between the nozzle assembly and the spray assembly. When the nozzle assembly is subjected to force, the first end of the nozzle assembly is used to move relative to the water tank assembly in a first direction to make the flow channel conductive. When the external force on the nozzle assembly is removed, the first end of the nozzle assembly is used to reset relative to the water tank assembly to disconnect the flow channel.

[0008] The external forces acting on the nozzle assembly vary depending on whether the nozzle assembly is in contact with the nasal cavity or not. The nozzle assembly can then open or close the flow path between the nozzle assembly and the spray assembly by moving relative to the water tank assembly. When the flow path is open, a large amount of liquid sprayed from the spray port can flow out of the liquid outlet. When the flow path is disconnected, liquid sprayed from the spray port will not flow along the flow path to the liquid outlet, or only a small amount of liquid will flow to the liquid outlet. Therefore, when the nozzle assembly leaves the nasal cavity, the fluid will not splash.

[0009] The floating nozzle of the embodiment of the present application includes a water tank assembly, a spray assembly and a nozzle assembly for contacting the nostrils. The first end of the spray assembly is provided with a spray part, the second end of the spray assembly is passed through the water tank assembly and is connected to the water tank assembly, and the spray part is used to spray fluid outward. The nozzle assembly is sleeved on the spray assembly and is located outside the water tank assembly. The nozzle assembly includes a deforming part and a supporting part. The deforming part is used to deform so that the end of the nozzle assembly corresponding to the spray part moves relative to the water tank assembly so that the nozzle assembly fits the nasal cavity. The first end of the spray assembly is passed through the supporting part, and the supporting part is used to cooperate with the spray assembly so that there is a gap between the spray assembly and the nozzle assembly for fluid to flow through.

[0010] During use, the deformable portion of the nozzle assembly partially extends into the nasal cavity and is able to conform to the nasal cavity. When the nozzle assembly is subjected to force, the nozzle assembly can move relative to the water tank assembly so that the nozzle assembly approaches the spray assembly and aligns with the spray element. At this time, the spray element sprays liquid or water mist, or other fluid, outward, through the nozzle assembly. When the nozzle assembly is subjected to greater force, the nozzle assembly moves more relative to the water tank assembly and floats a greater distance. When the nozzle assembly is subjected to less force, the nozzle assembly moves less relative to the water tank assembly and floats a shorter distance, ensuring that the nozzle assembly always conforms to the nasal cavity.

[0011] The nasal care device of an embodiment of the present application includes the floating nozzle and drainage device described in any of the above embodiments, the floating nozzle is installed on the drainage device, the floating nozzle is connected to the drainage device, and the drainage device is used to transport the fluid in the liquid storage tank to the spray assembly of the floating nozzle.

[0012] The drainage device draws liquid from the water tank assembly and pressurizes the liquid, allowing it to be sprayed through the floating nozzle's spray assembly to cleanse the nasal cavity. The drainage device can draw only liquid or simultaneously draw liquid and gas, causing the gas and liquid to mix and be sprayed through the floating nozzle in the form of a mist.

[0013] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] FIG1 is a perspective schematic diagram of a floating nozzle according to some embodiments of the present application;

[0016] FIG2 is an exploded schematic diagram of the floating nozzle shown in FIG1 ;

[0017] FIG3 is a schematic cross-sectional view of the floating nozzle shown in FIG1 ;

[0018] FIG4 is an exploded schematic diagram of a floating nozzle according to some embodiments of the present application;

[0019] FIG5 is a cross-sectional schematic diagram of the floating nozzle shown in FIG4;

[0020] FIG6 is a cross-sectional schematic diagram of the floating nozzle shown in FIG4;

[0021] FIG7 is an exploded schematic diagram of a floating nozzle according to some embodiments of the present application;

[0022] FIG8 is a schematic cross-sectional view of the floating nozzle shown in FIG7 ;

[0023] FIG9 is an exploded schematic diagram of a floating nozzle according to some embodiments of the present application;

[0024] FIG10 is a schematic cross-sectional view of the floating nozzle shown in FIG9 ;

[0025] FIG11 is a perspective schematic diagram of a floating nozzle according to some embodiments of the present application;

[0026] FIG12 is a perspective schematic diagram of a nursing device according to certain embodiments of the present application. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and should not be understood as limiting the embodiments of the present application.

[0028] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In one example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection, or they can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0030] Referring to Figures 1 to 3 , the floating nozzle 100 of the present application includes a water tank assembly 10, a spray assembly 30, and a nozzle assembly 50. The water tank assembly 10 includes a liquid storage tank 11 for storing fluid. A spray port 305 is defined at a first end 301 of the spray assembly 30. A second end 303 of the spray assembly 30 extends through the water tank assembly 10 and communicates with the liquid storage tank 11. The spray port 305 is configured to spray fluid outward. The nozzle assembly 50 is sleeved within the spray assembly 30 and positioned outside the water tank assembly 10. A liquid outlet 503 is defined at a first end 501 of the nozzle assembly 50, forming a flow channel 504 between the nozzle assembly 50 and the spray assembly 30. When a force is applied to the nozzle assembly 50, the first end 501 of the nozzle assembly 50 is configured to move relative to the water tank assembly 10 in a first direction X to open the flow channel 504. When the external force on the nozzle assembly 50 is removed, the first end 501 of the nozzle assembly 50 is used to reset relative to the water tank assembly 10 so that the flow channel 504 is disconnected.

[0031] The flow channel 504 is a passage for liquid flow. It includes both the gap formed between the nozzle assembly 50 and the spray assembly 30 for the liquid flowing out of the spray port 305 and the passage within the water tank assembly 10 for the fluid to flow toward the spray assembly 30. Structurally, the flow channel 504 remains unobstructed. The open and closed state of the flow channel 504 is determined by whether the liquid can flow out of the liquid outlet 503. As long as a large amount of fluid flowing out of the spray port 305 can flow out of the liquid outlet 503, the flow channel 504 is considered to be in an open state. As long as only a small amount of fluid flowing out of the spray port 305 can flow out of the liquid outlet 503, or all of the fluid cannot flow out of the liquid outlet 503, the flow channel 504 is considered to be in an open state, regardless of whether there is a gap between the nozzle assembly 50 and the spray assembly 30.

[0032] When the nozzle assembly 50 is under force, the spray port 305 corresponds to the liquid outlet 503, and the flow channel 504 is in a conductive state. When the flow channel 504 is conductive, the fluid in the water tank assembly 10 can flow to the spray port 305 of the spray assembly 30, and the fluid sprayed from the spray port 305 can be sprayed out through the liquid outlet 503 of the nozzle assembly 50. When the external force on the nozzle assembly 50 is removed, the spray port 305 is offset from the liquid outlet 503, and the flow channel 504 is in a disconnected state. Although the fluid can still flow from the water tank assembly 10 to the spray port 305 of the spray assembly 30, the fluid cannot flow out of the liquid outlet 503 or only a small amount of fluid can flow out of the liquid outlet 503. A large amount of fluid can only flow back into the water tank assembly 10 along the inner wall of the nozzle assembly 50 and the outer wall of the spray assembly 30, so that the fluid can only flow in the gap between the nozzle assembly 50 and the spray assembly 30, avoiding the continued spraying of fluid from splashing, wetting the user's face or clothes, and affecting the user's experience. In both cases where the nozzle assembly 50 contacts the nasal cavity and when the nozzle assembly 50 does not contact the nasal cavity, the external force on the nozzle assembly 50 will change. At this time, the nozzle assembly 50 can open or close the flow channel 504 between the nozzle assembly 50 and the spray assembly 30 by moving relative to the water tank assembly 10. When the flow channel 504 is open, a large amount of liquid sprayed from the spray port 305 can flow out of the liquid outlet 503. When the flow channel 504 is disconnected, the liquid sprayed from the spray port 305 will not flow along the flow channel 504 to the liquid outlet 503, or only a small amount of liquid will flow along the flow channel 504 to the liquid outlet 503. Therefore, when the nozzle assembly 50 leaves the nasal cavity, the liquid will not splash.

[0033] In addition, the nozzles of current nursing devices that spray liquid outward are difficult to fit into the nasal cavity, which can easily cause discomfort or liquid leakage during use. In order to solve this problem, please refer to Figures 1 and 2. The nozzle assembly 50 of the floating nozzle 100 of the present application is used to contact the nostrils. The first end 301 of the spray assembly 30 is provided with a spray member 33. The second end 303 of the spray assembly 30 is passed through the water tank assembly 10 and communicates with the water tank assembly 10. The spray member 33 is used to spray fluid outward. The nozzle assembly 50 is sleeved on the spray assembly 30 and is located outside the water tank assembly 10. The nozzle assembly 50 includes a deforming portion 5101 and a supporting portion 5103. The deforming portion 5101 is used to deform so that the end of the nozzle assembly 50 corresponding to the spray member 33 moves relative to the water tank assembly 10, so that the nozzle assembly 50 fits into the nasal cavity. The first end 301 of the spray assembly 30 is penetrated by a support portion 5103 , which is used to cooperate with the spray assembly 30 so that a gap for fluid to flow through is provided between the spray assembly 30 and the nozzle assembly 50 .

[0034] In the floating nozzle 100 of the present application, during use, the deformable portion 5101 of the nozzle assembly 50 partially extends into the nasal cavity and is able to conform to the nasal cavity. When the nozzle assembly 50 is subjected to force, the nozzle assembly 50 can move relative to the water tank assembly 10 so that the nozzle assembly 50 approaches the spray assembly 30 and corresponds to the spray element 33. At this time, the spray element 33 sprays a fluid such as liquid or water mist outward, and the fluid can be ejected through the nozzle assembly 50. When the nozzle assembly 50 is subjected to greater force, the nozzle assembly 50 moves more relative to the water tank assembly 10 and floats a greater distance. When the nozzle assembly 50 is subjected to less force, the nozzle assembly 50 moves less relative to the water tank assembly 10 and floats a shorter distance, ensuring that the nozzle assembly 50 always conforms to the nasal cavity.

[0035] The floating nozzle 100 will be further described below with reference to the accompanying drawings.

[0036] Please refer to Figures 2 and 3. In some embodiments, the water tank assembly 10 is a box structure capable of storing liquid. In some embodiments, the water tank assembly 10 can store cleaning liquid for washing the nasal cavity. In other embodiments, the water tank assembly 10 can also store waste liquid generated after washing the nasal cavity, wherein the storage location of the waste liquid is isolated from the storage location of the cleaning liquid to prevent the cleaning liquid from being contaminated. The cleaning liquid stored in the water tank assembly 10 can be water or a mixed cleaning liquid with other ingredients added, which is not limited here. The material of the water tank assembly 10 includes but is not limited to metal, plastic or silicone, etc. Among them, the outer contour of the cross section of the water tank assembly 10 can be a regular shape (for example: a perfect circle, an ellipse, a polygon, etc.) or an irregular shape.

[0037] Specifically, referring to Figure 1 , in certain embodiments, the water tank assembly 10 has a top and bottom facing each other. The top of the water tank assembly 10 faces the nozzle assembly 50, while the bottom of the water tank assembly 10 is used to connect to other structures. The water tank assembly 10 has a central axis A that passes through at least two of the three-dimensional geometric center of the water tank assembly 10, the geometric center of a cross-section of the top of the water tank assembly 10, or the geometric center of a cross-section of the bottom of the water tank assembly 10. The central axis A of the water tank assembly 10 is at least perpendicular to the top and / or bottom of the water tank assembly 10. When the deformable portion 5101 of the nozzle assembly 50 is deformed, the free end of the nozzle assembly 50, which is away from the top of the water tank assembly 10, moves relative to the water tank assembly 10 along the extension direction of the central axis A of the water tank assembly 10 in a first direction X and a second direction Y, so that the nozzle assembly 50 floats relative to the water tank assembly 10. The user can adjust the fit between the nozzle assembly 50 and the nasal cavity based on the floating of the nozzle assembly 50, so that the nozzle assembly 50 can fit more closely with the nasal cavity without causing discomfort or causing a large amount of liquid to be unable to enter the deep nasal cavity and flow directly out of the nostrils. The first direction X and the second direction Y are both parallel to the extension direction of the central axis A of the water tank assembly 10, and the first direction X and the second direction Y are opposite. The first direction X is the direction from the nozzle assembly 50 to the water tank assembly 10, and the second direction Y is the direction from the water tank assembly 10 to the nozzle assembly 50.

[0038] More specifically, in some embodiments, the water tank assembly 10 includes a liquid storage tank 11 and a cover 13. Along the central axis A of the water tank assembly 10, the side of the cover 13 facing the nozzle assembly 50 is the top of the water tank assembly 10, and the side of the liquid storage tank 11 away from the cover 13 is the bottom of the water tank assembly 10. In some embodiments, the liquid storage tank 11 and the cover 13 are integrally formed, while in other embodiments, the liquid storage tank 11 and the cover 13 are separately formed. The connection between the liquid storage tank 11 and the cover 13 can be a detachable connection such as a snap connection, screw connection, or bolt connection, or a non-detachable connection such as a gluing connection, hot melt connection, or welding, which is not limited here. The liquid storage tank 11 is provided with a liquid storage chamber 111, an installation chamber 113, and a waste liquid chamber 115. The installation chamber 113 and the waste liquid chamber 115 are spaced apart from each other, and the liquid storage chamber 111 and the waste liquid chamber 115 are spaced apart from each other. The mounting cavity 113 of the liquid storage tank 11 can be directly connected to the liquid storage cavity 111 or indirectly connected through other structures. The liquid storage cavity 111 can be used to store fluid, and the mounting cavity 113 can be used to install the spray assembly 30 and allow the fluid in the liquid storage tank 11 to flow. When the spray assembly 30 needs to spray fluid outward, the liquid and / or gas in the liquid storage cavity 111 can enter the spray assembly 30 from one end of the spray assembly 30 extending into the mounting cavity 113, and be sprayed out through the spray port 305 at the other end of the spray assembly 30 through the liquid outlet 503 of the nozzle assembly 50. The waste liquid cavity 115 can be used to store waste liquid, which is a mixed liquid formed by the fluid flowing out of the spray port 305 and the liquid outlet 503 after the nasal cavity is cleaned, as well as excess liquid that does not enter the nasal cavity after flowing out of the spray port 305 and the liquid outlet 503.

[0039] Furthermore, in certain embodiments, the cover 13 is provided on the liquid storage tank 11 to shield the openings of the liquid storage chamber 111, the installation chamber 113, and the waste liquid chamber 115, and the spray assembly 30 can pass through the cover 13 and partially extend into the installation chamber 113. The nozzle assembly 50 is connected to the cover 13 and sleeved on the spray assembly 30. In the case where the spray assembly 30 needs to spray fluid outward, the liquid and / or gas in the liquid storage tank 11 can enter the spray assembly 30 from one end of the spray assembly 30 extending into the installation chamber 113, and be sprayed out through the nozzle assembly 50 through the other end of the spray assembly 30. Specifically, the cover 13 is provided with a collection port 131, which is a structure that can guide waste liquid into the waste liquid chamber 115 or redirect the fluid into the liquid storage chamber 111. The collection port 131 can be in communication with the waste liquid chamber 115 and / or the liquid storage chamber 111, so that the fluid flows into the waste liquid chamber 115 and / or the liquid storage chamber 111. In some embodiments, the collection port 131 and the opening of the mounting chamber 113 toward the cover body 13 are staggered, and the collection port 131 is offset relative to the opening of the mounting chamber 113 toward the cover body 13. When the liquid outlet 503 and the spray port 305 correspond to each other, the fluid sprayed by the spray port 305 can be sprayed out from the liquid outlet 503, and the fluid flowing out of the liquid outlet 503 can flow from the outer wall of the nozzle assembly 50 to the surface of the cover body 13, and then enter the waste liquid chamber 115 and / or the liquid storage chamber 111 through the collection port 131, thereby preventing the liquid from spilling. When the liquid outlet 503 and the spray port 305 are offset from each other, the fluid sprayed from the spray port 305 cannot be sprayed out of the liquid outlet 503. At this time, the fluid that does not flow out of the liquid outlet 503 will be sprayed on the inner wall of the nozzle assembly 50 and the outer wall of the spray assembly 30. The fluid can flow in the partial flow channel 504 formed between the nozzle assembly 50 and the spray assembly 30, and fall on the surface of the cover body 13 to directly enter the waste liquid chamber 115 and / or the liquid storage chamber 111 through the collection port 131 on the surface of the cover body 13. In other embodiments, the collection port 131 corresponds to the opening of the installation chamber 113 toward the cover body 13, and the collection port 131 is connected to the waste liquid chamber 115. The second end 303 of the spray assembly 30 is penetrated by the collection port 131 to extend into the flow channel 504 (i.e., the installation chamber 113). The spray assembly 30 can block the opening of the installation chamber 113 toward the cover body 13 to prevent waste liquid from entering the installation chamber 113. When the liquid outlet 503 corresponds to the spray port 305, the fluid sprayed from the spray port 305 can be sprayed out of the liquid outlet 503. The fluid flowing out of the liquid outlet 503 can flow from the outer wall of the nozzle assembly 50 to the surface of the cover body 13, and then enter the waste liquid chamber 115 and / or the liquid storage chamber 111 through the collection port 131, thereby preventing the liquid from spilling. When the liquid outlet 503 and the spray port 305 are staggered, the fluid sprayed from the spray port 305 cannot be sprayed out of the liquid outlet 503. In this case, the fluid that does not flow out of the liquid outlet 503 will be sprayed on the inner wall of the nozzle assembly 50 and the outer wall of the spray assembly 30.When the flow channel 504 is disconnected, the fluid flowing out through the spray port 305 flows from the inner wall of the nozzle assembly 50 and the outer wall of the spray assembly 30 to the cover 13 and flows into the waste liquid chamber 115 from the collection port 131 .

[0040] Referring to Figures 2 and 3, in some embodiments, the spray assembly 30 is a structure capable of spraying fluid outward. The fluid sprayed by the spray assembly 30 can be either a liquid or a liquid mist formed by a mixture of gas and liquid, which is not limited here. The spray assembly 30 includes a first end 301 and a second end 303 relative to each other. The first end 301 of the spray assembly 30 extends into the nozzle assembly 50 (shown in Figure 1), and the second end 303 of the spray assembly 30 passes through the cover 13 and partially extends into the installation cavity 113. The second end 303 of the spray assembly 30 can extract liquid and / or gas from the installation cavity 113 to form a fluid that can enter the nasal cavity. The fluid that enters the nasal cavity through the first end 301 of the spray assembly 30 can be used to rinse the nasal cavity to make the nasal cavity cleaner, or to deliver medicines and the like into the respiratory tract through the nasal cavity to maintain a clean environment in the nasal cavity.

[0041] Specifically, in some embodiments, the spray assembly 30 includes a flow guide 31 and a spray member 33. The flow guide 31 is a tubular structure capable of guiding fluid. The flow guide 31 includes a first end 311 and a second end 313, which are opposite to each other. Compared to the second end 313 of the flow guide 31, the first end 311 of the flow guide 31 is farther away from the cover 13 of the water tank assembly 10. The first end 311 of the flow guide 31 is the first end 301 of the spray assembly 30, and the second end 313 of the flow guide 31 is the second end 303 of the spray assembly 30. The spray port 305 is provided at the first end 311 of the flow guide 31. The second end 313 of the flow guide 31 passes through the water tank assembly 10 to communicate with the liquid storage chamber 111 and the installation chamber 113 of the water tank assembly 10. The spray member 33 is disposed at the first end 311 of the flow guide member 31 and is mounted at the spray port 305. The first end 311 of the flow guide member 31 can extend into the spray head assembly 50. When the spray head assembly 50 moves relative to the water tank assembly 10, the first end 311 of the flow guide member 31 can move relative to the spray head assembly 50. When the spray head assembly 50 moves to a position where the spray member 33 aligns with the liquid outlet 503, liquid flowing from the flow guide member 31 to the spray member 33 is ejected from the liquid outlet 503. When the spray head assembly 50 is subjected to an external force, the spray head assembly 50 can move along the central axis A of the water tank assembly 10 in a first direction X toward the water tank assembly 10. At this point, the spray member 33 can align with the liquid outlet 503, and the fluid ejected through the spray member 33 can be sprayed from the liquid outlet 503 into the nasal cavity. When the external force acting on the nozzle 51 is removed, the nozzle assembly 50 can move along the central axis A of the water tank assembly 10 in the second direction Y away from the water tank assembly 10, and the spray member 33 can be staggered with the liquid outlet 503. At this time, the fluid sprayed by the spray member 33 will contact the inner wall of the nozzle 51 and flow from the inner wall of the nozzle 51 and the outer wall of the guide member 31 to the water tank assembly 10, so that the liquid cannot enter the nasal cavity. Therefore, the on-off control of the fluid spraying channel can be achieved by floating the nozzle assembly 50.

[0042] More specifically, in certain embodiments, the orientation of the liquid outlet 503 is always the same as the spraying direction M of the spray element 33, so that as much liquid as possible sprayed by the spray element 33 is ejected from the liquid outlet 503 without flowing back into the water tank assembly 10 through the gap between the spray assembly 30 and the nozzle assembly 50, thereby relatively increasing the flow rate of the fluid ejected by the spray assembly 30. In some embodiments, referring to FIG11 , the spraying direction M of the spray element 33 is the same as the extension direction of the central axis A of the water tank assembly 10, that is, the spraying direction M of the spray outlet 305 is the second direction Y, the spray outlet 305 is located at the first end 301 of the spray assembly 30, and the liquid outlet 503 is located at the end of the nozzle assembly 50 away from the water tank assembly 10 and facing the second direction Y. At this time, the fluid can be ejected outward in the second direction Y along the central axis A of the water tank assembly 10. During use, the user needs to tilt the nasal care device 1000 provided with the floating nozzle 100 so that the liquid outlet 503 is aligned with the deep part of the nasal cavity. In other embodiments, referring to Figures 3, 5, 8, and 10, a bend 315 is provided at one end of the flow guide 31 away from the water tank assembly 10, and the spraying member 33 is disposed at the bend 315 so that the spraying direction M of the spraying member 33 intersects with the central axis A of the water tank assembly 10. The liquid outlet 503 is disposed on the sidewall of the nozzle 51 and corresponds to the spraying member 33. When the spraying direction M of the spraying member 33 intersects with the central axis A of the water tank assembly 10, the orientation of the liquid outlet 503 and the spraying direction M of the spraying member 33 are both tilted relative to each other so that the liquid outlet 503 can be aligned with the position of the nasal cavity that needs to be cleaned. When holding the nasal care device 1000 equipped with the floating nozzle 100, the user does not need to tilt the nasal care device 1000; holding the nasal care device 1000 vertically allows the liquid outlet 503 to be aligned with the position of the nasal cavity that needs to be cleaned, making it more convenient to use.

[0043] Referring to Figures 1 and 2 , in certain embodiments, the spray head assembly 50 is structured to directly contact the nasal cavity and allow liquid to flow through it. The spray head assembly 50 includes a first end 501 and a second end 502, which are opposed to each other. The spray head assembly 50 is configured to cooperate with the spray assembly 30 so that liquid sprayed from the spray assembly 30 enters the nasal cavity through the spray head assembly 50. When the first end 501 of the spray head assembly 50 is inserted into the nasal cavity, the deformable portion 5101 of the spray head assembly 50, which extends into the nasal cavity, can deform. The second end 502 of the spray head assembly 50 is configured to contact the spray assembly 30 and / or the water tank assembly 10, allowing the spray head assembly 50 to move relative to the water tank assembly 10 during deformation. The movement of the spray head assembly 50 relative to the water tank assembly 10 creates a floating motion. During this floating motion, the user can adjust the position of the spray head assembly 50 within the nasal cavity based on their experience. This improves the user experience while also avoiding the issue of fixed-shape spray head assemblies 50 being unable to adapt to all nasal shapes.

[0044] Specifically, please refer to Figures 2 and 3. In some embodiments, the nozzle assembly 50 includes a nozzle 51. The nozzle 51 is roughly open at both ends and has an inner cavity structure. The opening corresponding to the nozzle 51 and the spray member 33 is a liquid outlet 503. The nozzle 51 is made of flexible material. The opening of the nozzle 51 facing the water tank assembly 10 can be mounted on the spray assembly 30. The deformation portion 5101 is connected to the support portion 5103 and is both provided on the nozzle 51. The support portion 5103 can be connected to the water tank assembly 10 and / or the spray assembly 30. The deformable portion 5101 is disposed on the exterior of the nozzle 51 and is capable of deforming under force to conform to the nasal cavity. The supporting portion 5103 is disposed within the nozzle 51 and in contact with the water tank assembly 10 and / or the spray assembly 30. This prevents the deformable portion 5101 from excessively deforming and squeezing the water tank assembly 10 and / or the spray assembly 30, thereby blocking the gap between the inner wall of the nozzle 51 and the outer wall of the spray assembly 30 and / or the gap between the inner wall of the nozzle 51 and the top of the water tank assembly 10. This could hinder the fluid ejected from the spray assembly 30 from flowing out or the waste liquid from entering the water tank assembly 10. When the nozzle 51 is subjected to external force, the deformable portion 5101 can deform, allowing the nozzle 51 to move relative to the water tank assembly 10. The nozzle 51 can move along the extension direction of the central axis A of the water tank assembly 10 in a first direction X toward the water tank assembly 10 or in a second direction Y away from the water tank assembly 10, with the first direction X being opposite to the second direction Y. At this time, the portion of the nozzle 51 located in the nasal cavity can always fit in with the nasal cavity and will not separate from the inside of the nasal cavity. Therefore, the nozzle 51 has better adaptability to the nasal cavity, and the user experience during use is more comfortable.

[0045] Furthermore, in some embodiments, along the central axis A of the water tank assembly 10, the nozzle 51 includes a first end and a second end facing each other. The first end of the nozzle 51 is a free end distal from the water tank assembly 10 (i.e., the first end 501 of the nozzle head assembly 50), and the second end of the nozzle 51 is a connection end proximal to the water tank assembly 10 (i.e., the second end 502 of the nozzle head assembly 50). When the nozzle 51 is subjected to an external force, the deformable portion 5101 can deform to allow the first end of the nozzle 51 to move relative to the water tank assembly 10 and conform to the nasal cavity. In some embodiments, referring to Figures 3 and 7, the deformable portion 5101 is located on the side wall of the nozzle 51. In other embodiments, referring to Figures 4 and 5, the deformable portion 5101 is located on the bottom wall of the nozzle 51 near the water tank assembly 10. When the deformable portion 5101 is located on the side wall of the nozzle 51, it is generally an annular structure that is deformable along the central axis A of the water tank assembly 10. When the deformable portion 5101 is disposed on the bottom wall of the nozzle 51, one end of the deformable portion 5101 is generally in contact with the water tank assembly 10. After the deformable portion 5101 is deformed, the portion of the nozzle 51 located on the side of the deformable portion 5101 away from the water tank assembly 10 moves relative to the water tank assembly 10 toward the spray assembly 30, thereby achieving floating of the nozzle 51 relative to the water tank assembly 10.

[0046] Furthermore, referring to Figures 7 and 8 , in some embodiments, the deformable portion 5101 includes at least two deformable portions 5101, and the at least two deformable portions 5101 are spaced apart from each other. When the nozzle 51 is subjected to force, at least one of the at least two deformable portions 5101 deforms, causing the end of the nozzle 51 away from the water tank assembly 10 to move relative to the water tank assembly 10. Compared to a solution in which the nozzle 51 has only one deformable portion 5101, the nozzle 51 with two deformable portions 5101 moves a greater distance relative to the water tank assembly 10 when deformed, and the nozzle 51 has a greater floating range. When the nozzle 51 is subjected to a large force, both deformable portions 5101 deform to increase the floating range. When the nozzle 51 is subjected to a small force, only one of the two deformable portions 5101 deforms, resulting in a smaller floating range.

[0047] More specifically, referring to Figures 4 and 5 , in certain embodiments, the spray head assembly 50 includes an elastic member 52, a first support member 54, and a second support member 56. The elastic member 52 is capable of deforming, allowing the first end 501 of the spray head assembly 50 to move relative to the water tank assembly 10 and maintain contact with the nasal cavity when subjected to force. Materials for the elastic member 52 include, but are not limited to, silicone, rubber, or plastic. When the spray head assembly 50 is squeezed, the elastic member 52 deforms to conform to the outer wall of the elastic member 52, preventing fluid leakage. The first support member 54 is connected to the elastic member 52 and positioned between the elastic member 52 and the spray assembly 30. One side of the first support member 54 can contact the spray assembly 30, while the other side of the first support member 54 can engage with the elastic member 52 to form a flow channel 504 between the elastic member 52 and the spray assembly 30. The first support member 54 maintains the gap between the spray head assembly 50 and the spray assembly 30, maintaining a clear flow channel 504. When the elastic member 52 is deformed to a large extent, the elastic member 52 squeezes the first support member 54, and fluid can still flow between the first support member 54 and the spray assembly 30. The second support member 56 is connected to the elastic member 52, and the first support member 54 and the second support member 56 are separated. The second support member 56 is connected to the water tank assembly 10 to enable the spray head assembly 50 to be installed on the water tank assembly 10. The second support member 56 can connect the elastic member 52 and the water tank assembly 10 to enable the spray head assembly 50 to be connected to the water tank assembly 10. In some embodiments, the first support member 54, the second support member 56, and the elastic member 52 are integrally formed. The elastic member 52 is made of a soft rubber material that is softer and easier to deform, while the first support member 54 and the second support member 56 are made of a hard rubber material that is less prone to deformation. In other embodiments, the first support member 54, the second support member 56 and the elastic member 52 are formed separately, and the first support member 54 is installed inside the elastic member 52 and contacts the water tank assembly 10 and / or the spray assembly 30 to prevent the elastic member 52 from squeezing the water tank assembly 10 and / or the spray assembly 30 after excessive deformation and blocking the gap between the inner wall of the nozzle 51 and the outer wall of the spray assembly 30 and / or the gap between the inner wall of the nozzle 51 and the top of the water tank assembly 10, resulting in the fluid sprayed by the spray assembly 30 being difficult to flow out or the waste liquid formed being difficult to enter the water tank assembly 10.

[0048] More specifically, in some embodiments, the elastic member 52 is integrally formed, and an annular lower circumferential wall 521 is provided on the side of the elastic member 52 proximate to the water tank assembly 10. The lower circumferential wall 521 may also have a thinned portion 523. Compared to other portions of the elastic member 52, the thinned portion 523 is thinner, and the inner side of the thinned portion 523 faces the cavity 507 of the elastic member 52. The thinned portion 523 is deformable to enable the elastic member 52 and the first support member 54 to move relative to the water tank assembly 10. When the elastic member 52 is subjected to force, the thinned portion 523 deforms and concaves toward the interior of the cavity 507, causing both the elastic member 52 and the first support member 54 to move toward the side proximate to the water tank assembly 10. When the external force on the elastic member 52 is removed, the thinned portion 523 returns to its original shape and pushes the elastic member 52 and the first support member 54 to move away from the water tank assembly 10, thereby achieving the up and down floating of the nozzle assembly 50 and further controlling the on and off of the flow channel 504.

[0049] Furthermore, in certain embodiments, the lower circumferential wall 521 is inclined relative to the surface of the water tank assembly 10 toward the elastic member 52, so that a gap exists between the lower circumferential wall 521 and the water tank assembly 10. The gap between the elastic member 52 and the water tank assembly 10 can serve as a movement space for the thinned portion 523 when deforming. Compared with a solution in which the lower circumferential wall 521 is in close contact with the water tank assembly 10, when there is a gap between the lower circumferential wall 521 and the water tank assembly 10, the end of the elastic member 52 away from the water tank assembly 10 moves farther relative to the water tank assembly 10 along the central axis A of the water tank assembly 10, and the nozzle assembly 50 floats up and down more, thereby increasing the distance between the spray port 305 and the liquid outlet 503 when they are offset from each other, making it less likely that liquid will splash outside the liquid outlet 503.

[0050] In some embodiments, referring to Figures 2, 4, 7, and 9, the liquid outlet 503 is disposed on the side wall of the nozzle assembly 50, and the orientation of the liquid outlet 503 is different from the first direction X, that is, the extension line of the direction in which the liquid outlet 503 sprays liquid intersects the extension line of the first direction X. The orientation of the liquid outlet 503 is always parallel to the orientation of the spray port 305. In other embodiments, referring to Figure 11, the liquid outlet 503 is disposed at the first end 501 of the nozzle assembly 50, and the orientation of the liquid outlet 503 is the same as the second direction Y, and the first direction X is opposite to the second direction Y. The user can adjust the correspondence between the spray port 305 and the liquid outlet 503 by moving the nozzle assembly 50, and further control whether the fluid is sprayed. When the nozzle assembly 50 is subjected to force, the first end 501 of the nozzle assembly 50 can move relative to the water tank assembly 10 in the first direction X so that the liquid outlet 503 is aligned with the spray port 305. When the external force applied to the nozzle assembly 50 is removed, the first end 501 of the nozzle assembly 50 returns to its original position so that the liquid outlet 503 is offset from the spray port 305. For example, during use, when the nozzle assembly 50 is inserted into the nasal cavity, the inner wall of the nasal cavity squeezes the nozzle assembly 50 and pushes the nozzle assembly 50 toward the spray assembly 30. Only when the external force applied to the nasal cavity reaches a certain level will the spray port 305 and the liquid outlet 503 align with each other, allowing fluid to be sprayed at the maximum flow rate. When the external force applied to the nasal cavity is relatively low, the spray port 305 and the liquid outlet 503 cannot be aligned, and fluid cannot be sprayed from the liquid outlet 503.

[0051] Furthermore, in certain embodiments, the inner contour of the liquid outlet 503 is larger than the outer contour of the spray outlet 305, so that when the liquid outlet 503 and the spray outlet 305 are directly opposite each other, the spray outlet 305 is located within the range of the liquid outlet 503. When the inner contour of the liquid outlet 503 is larger than the outer contour of the spray outlet 305, the range of the fluid sprayed outward by the spray outlet 305 is smaller than the range of the liquid outlet 503. Therefore, when the spray outlet 305 and the liquid outlet 503 are directly opposite each other, the fluid sprayed through the spray member 33 can be sprayed through the liquid outlet 503 without contacting the inner wall of the spray head assembly 50, thereby avoiding blocking the flow direction of the fluid.

[0052] Furthermore, in some embodiments, a shielding portion 505 is provided in the nozzle assembly 50. The shielding portion 505 is a raised structure extending from the inner contour of the liquid outlet 503 toward the central axis of the liquid outlet 503. When the liquid outlet 503 is not completely aligned with the spray port 305, the fluid sprayed from the spray port 305 will partially splash outside the nozzle assembly 50. The shielding portion 505 can block the fluid so that the sprayed fluid can re-enter the flow channel 504 and flow to the water tank assembly 10 through the inner wall of the nozzle assembly 50, thereby reducing the splashing of the fluid.

[0053] Furthermore, in some embodiments, the displacement distance of the first end 501 of the nozzle assembly 50 relative to the first end 301 of the spray assembly 30 along the central axis A of the water tank assembly 10 is less than the aperture of the liquid outlet 503. If the displacement distance of the first end 501 of the nozzle assembly 50 relative to the first end 301 of the spray assembly 30 is greater than the aperture of the liquid outlet 503, the nozzle assembly 50 moves an excessively long distance, requiring the user to exert considerable force to align the liquid outlet 503 of the nozzle assembly 50 with the spray outlet 305 during use, resulting in inconvenience. Moreover, when the spraying direction M of the spray port 305 intersects with the direction of the central axis A of the water tank assembly 10, the user holds the nasal care device 1000 vertically. At this time, the spraying direction M of the spray port 305 is relatively parallel to the extension direction of the nasal cavity, and the direction of the central axis A of the water tank assembly 10 also intersects with the extension direction of the nasal cavity. Therefore, the displacement distance of the first end 501 of the nozzle assembly 50 relative to the first end 301 of the spray assembly 30 needs to be at least smaller than the aperture of the liquid outlet 503, so that the position where the liquid outlet 503 of the nozzle assembly 50 is opened can be in a moderate position in the nasal cavity, and will not be too deep to cause a poor user experience.

[0054] Referring to Figures 4 and 5 , in certain embodiments, the nozzle assembly 50 is provided with a recovery port 506 and a cavity 507 communicating with the recovery port 506. The recovery port 506 is a structure capable of directing waste liquid into the waste liquid chamber 115 or redirecting fluid into the liquid storage chamber 111, and the cavity 507 can contribute to forming a portion of the flow channel 504. The recovery port 506 penetrates the outer wall of the nozzle assembly 50 and communicates with the waste liquid chamber 115 and / or the liquid storage chamber 111 via the cavity 507. Fluid that does not flow out of the liquid outlet 503 can flow within the cavity 507 and flow channel 504 of the nozzle assembly 50 and directly enter the waste liquid chamber 115 and / or the liquid storage chamber 111 from the side where the cover 13 is located. The fluid flowing out of the liquid outlet 503 can enter the recovery port 506 from the outer wall of the nozzle assembly 50, and then enter the waste liquid chamber 115 and / or the liquid storage chamber 111 from the side where the cover body 13 is located through the cavity 507 of the nozzle assembly 50 to prevent the liquid from spilling.

[0055] Further, in conjunction with Figure 6, in some embodiments, along the first direction X, the distance H between the recovery port 506 and the lower peripheral wall 521 of the cavity 507 close to the cover body 13 is less than the displacement distance D of the first end 501 of the nozzle assembly 50 relative to the water tank assembly 10. When the recovery port 506 is arranged on the nozzle 51, since the lower circumferential wall 521 of the nozzle 51 is provided with a deformable thinning portion 523, when the thinning portion 523 is deformed, the cavity 507 will be compressed in the direction of the central axis A of the water tank assembly 10. When the distance H between the recovery port 506 and the lower circumferential wall 521 is greater than the displacement distance D of the first end 501 of the nozzle assembly 50 relative to the water tank assembly 10, the maximum distance that the cavity 507 can be compressed (that is, the distance H between the recovery port 506 and the lower circumferential wall 521) can be greater than the distance that the nozzle assembly 50 can float up and down (that is, the displacement distance D of the first end 501 of the nozzle assembly 50 relative to the water tank assembly 10), thereby avoiding the cavity 507 being completely compressed during the movement of the nozzle assembly 50 relative to the water tank assembly 10, causing the recovery port 506 to be close to the lower circumferential wall 521, and avoiding affecting the flow of waste liquid and other fluids in the cavity 507.

[0056] Furthermore, in certain embodiments, the direction of the liquid outlet 503 intersects the central axis A of the water tank assembly 10, and the recovery port 506 is provided on the side facing the liquid outlet 503 so as to be opposite to the liquid outlet 503. When the recovery port 506 and the liquid outlet 503 are located on the same side, the fluid flowing out of the liquid outlet 503 can flow directly into the corresponding recovery port 506 under the action of gravity, thereby reducing the distance the fluid flows on the surface of the nozzle assembly 50 and preventing a large amount of fluid from adhering to the surface of the nozzle assembly 50 and affecting the normal use of the nasal cavity care device 1000.

[0057] Referring to Figures 9 and 10 , in some embodiments, the spray head assembly 50 may further include a bracket 53. The support portion 5103 is the bracket 53. The bracket 53 is mounted on the spray assembly 30 and mounted on the water tank assembly 10, with the outer wall of the spray assembly 30 partially spaced from the inner wall of the bracket 53. The deformable portion 5101 is the nozzle 51. The bracket 53 includes a first end 531 and a second end 533, which are opposed to each other. The nozzle 51 is mounted on the first end 531 of the bracket 53. The second end 533 of the bracket 53 is located at the top of the water tank assembly 10 and / or the second end 533 of the bracket 53 is located on the fixing member 101 of the flow guide 31 of the spray assembly 30. In some embodiments, the bracket 53 and the nozzle 51 are separate structures. In other embodiments, the bracket 53 and the nozzle 51 are integrally formed. The bracket 53 is configured to move relative to the spray assembly 30, thereby driving the nozzle 51 to move relative to the spray assembly 30. When the nozzle 51 contacts the nasal cavity, due to its flexible structure, the nozzle 51 partially deforms to conform to the inner wall of the nasal cavity. As the user continues to push the nozzle 51 into the nasal cavity and apply external force to the nozzle 51, the nozzle 51 and the bracket 53 move together relative to the water tank assembly 10, ensuring that the nozzle 51 is in close contact with the nasal cavity and that the contact between the nasal cavity and the nozzle 51 can be adjusted at any time according to the user's posture.

[0058] Furthermore, in some embodiments, the nozzle assembly 50 also includes a reset member 55, which is a structure capable of providing a reset force to the nozzle assembly 50. The reset member 55 includes but is not limited to a spring, an elastic block, or a tower spring. The reset member 55 includes a first end 551 and a second end 553 relative to each other. The first end 551 of the reset member 55 is disposed on the inner wall of the bracket 53, and the second end 553 of the reset member 55 is disposed on the outer wall of the spray assembly 30. When the nozzle 51 and the bracket 53 are subjected to force, the reset member 55 deforms to have a tendency to push the bracket 53 and the nozzle 51 to move to their original position. When the nozzle 51 and the bracket 53 are subjected to force (which can be an external force generated by the user during use or a force generated between the bracket 53 and the spray assembly 30), the reset member 55 deforms and generates a force that pushes the bracket 53 and the nozzle 51 to reset, so that the nozzle assembly 50 can automatically return to its original position after the external force is removed. Moreover, when the user changes the holding posture, the reset member 55 can also push the bracket 53 and the nozzle 51 so that the nozzle 51 is always in close contact with the inner wall of the nasal cavity, preventing the liquid from flowing directly out from between the nozzle 51 and the inner wall of the nasal cavity, affecting the cleaning effect.

[0059] Furthermore, in certain embodiments, when the nozzle assembly 50 is subjected to force, the reset force generated by the deformation of part of the nozzle assembly 50, which is used to push the nozzle assembly 50, is in the range of [0.5N, 5.0N]. This reset force can push the nozzle assembly 50 to reset automatically, and can also push the nozzle assembly 50 to fit tightly with the nasal cavity, avoiding a gap between the inner wall of the nasal cavity and the outer wall of the nozzle assembly 50, which would cause the fluid sprayed from the nozzle assembly 50 to leak through the gap. When the reset force is less than 0.5N, the liquid sprayed from the nozzle assembly 50 has difficulty entering the deep part of the nasal cavity, resulting in poor cleaning effect. When the reset force is greater than 5.0N, the squeezing force of the nozzle assembly 50 on the nasal cavity is too great, which can easily cause discomfort to the user. Therefore, when the reset force is in the range of [0.5N, 5.0N], the liquid sprayed from the nozzle assembly 50 can both enter the deep part of the nasal cavity to clean the nasal cavity and not produce a squeezing force that causes discomfort, resulting in a better user experience.

[0060] Referring to Figures 9 and 10 , in certain embodiments, the outer wall of the flow guide 31 is provided with a stopper 317, and the outer wall of the support portion 5103 (e.g., the support portion 5103 is also the bracket 53) is provided with a guide groove 508. The stopper 317 cooperates with the guide groove 508 to limit the movement of the spray head assembly 50 relative to the flow guide 31, a displacement distance D along the central axis A of the water tank assembly 10. When the spray head assembly 50 is subjected to an external force and moves relative to the water tank assembly 10, the spray head assembly 50 can also move relative to the spray assembly 30. In this case, the stopper 317 disposed on the flow guide 31 can move within the guide groove 508 relative to the bracket 53 along the central axis A of the water tank assembly 10. When the stopper 317 abuts the inner sidewall of either end of the guide groove 508, the distance between the spray head assembly 50 and the spray assembly 30 is maximized or minimized. When the distance between the nozzle assembly 50 and the spray assembly 30 is at its maximum, the nozzle assembly 50 is in its initial position, at which point the nozzle assembly 50 is not subject to force or is subject to the restoring force generated by the restoring member 55. When the distance between the nozzle assembly 50 and the spray assembly 30 is at its minimum, the nozzle assembly 50 is in its maximum compressed position, at which point the nozzle assembly 50 can move the maximum distance and the nozzle 51 has the maximum floating degree.

[0061] Referring to Figures 3, 6, and 8, in certain embodiments, along the central axis A of the water tank assembly 10, the displacement distance D of the end of the nozzle assembly 50 away from the water tank assembly 10 relative to the first end 301 of the spray assembly 30 is not less than 2 mm. If the displacement distance D of the end of the nozzle assembly 50 away from the water tank assembly 10 relative to the first end 301 of the spray assembly 30 is less than 2 mm, the distance between the nozzle assembly 50 and the spray assembly 30 is too small, the distance that the nozzle assembly 50 can move relative to the water tank assembly 10 is small, the degree of floating of the nozzle assembly 50 is small, and the portion of the nozzle assembly 50 that extends into the nasal cavity is also small, making it difficult for the nozzle assembly 50 to achieve a proper fit within the user's nasal cavity. When the displacement distance D of the end of the nozzle assembly 50 away from the water tank assembly 10 relative to the first end 301 of the spray assembly 30 is not less than 2 mm, the nozzle assembly 50 and the spray assembly 30 can be aligned so that all the liquid sprayed by the spray assembly 30 enters the nasal cavity, and a larger floating space can also be provided to make the nozzle assembly 50 fit the user's nasal cavity better.

[0062] Referring to Figures 2 and 4 , in some embodiments, a fixing portion 101 is provided at one end of the water tank assembly 10 connected to the spray assembly 30 (i.e., the top of the water tank assembly 10). The fixing portion 101 can be disposed around the spray assembly 30 or located only on one side of the spray assembly 30. In some embodiments, the fixing portion 101 is a raised structure on the side of the cover 13 facing the spray assembly 30. The nozzle 51 can be mounted on the fixing portion 101, such that the support portion 5103 is connected to the fixing portion 101. In this case, the nozzle 51 can be coupled to the water tank assembly 10 via the fixing portion 101, allowing the nozzle 51 to be installed on the water tank assembly 10 and mounted on the spray assembly 30. The fixing portion 101, located between the inner wall of the nozzle 51 and the outer wall of the spray assembly 30, can also support the nozzle 51 so that the inner wall of the nozzle 51 does not excessively press against the spray assembly 30 when the nozzle 51 deforms. In other embodiments, the fixing portion 101 is a raised structure provided on the spray assembly 30. The nozzle 51 can be mounted on the fixing portion 101 so that the supporting portion 5103 is connected to the fixing portion 101. At this time, the nozzle 51 can be combined with the spray assembly 30 through the fixing portion 101 so that the nozzle 51 can be installed on the spray assembly 30. At this time, the nozzle 51 can move relative to the water tank assembly 10 and the spray assembly 30, and can also move relative to the water tank assembly 10 together with the spray assembly 30. There is no restriction here.

[0063] Referring to Figures 2 and 3 , in certain embodiments, the floating nozzle 100 further includes a guide member 70. The guide member 70 is generally a shell structure with openings at both ends. The guide member 70 is used to guide the spray assembly 30 so that the spray port 305 aligns with the liquid outlet 503. One opening of the guide member 70 allows the spray assembly 30 to extend into the guide member 70, while the other opening aligns with the liquid outlet 503 to allow fluid to be sprayed. The guide member 70 may be made of, but is not limited to, non-deformable materials such as metal, plastic, or hard rubber. The guide member 70 is disposed within the nozzle assembly 50 and is configured to engage with the first end 301 of the spray assembly 30 to guide the spray element 33 of the spray assembly 30 to align with the liquid outlet 503 of the nozzle assembly 50. When the first end 301 of the spray assembly 30 extends parallel to the central axis A of the water tank assembly 10, the inner cavity of the guide member 70 also extends parallel to the central axis A of the water tank assembly 10. When the first end 301 of the spray assembly 30 is bent, the inner cavity of the guide member 70 is also bent, and the curvature of the inner contour of the guide member 70 cooperates with the curvature of the outer contour of the first end 301 of the spray assembly 30, thereby preventing the guide member 70 and the spray assembly 30 from colliding with each other or getting stuck with each other during movement of the spray head assembly 50 relative to the water tank assembly 10, thereby preventing fluid from being sprayed from the liquid outlet 503. The shape of the guide member 70 is similar to the shape of the end of the spray assembly 30 away from the water tank assembly 10, and the inner contour of the guide member 70 is at least larger than the outer contour of the spray assembly 30, so that the spray assembly 30 can extend into the guide member 70. When the nozzle 51 is subjected to external force, the guide member 70 cooperates with the end of the spray assembly 30 away from the water tank assembly 10 and guides the movement of the spray assembly 30, so that the spray member 33 of the spray assembly 30 moves to a position directly opposite the liquid outlet 503, thereby reducing liquid waste.

[0064] Please refer to Figures 1 and 12. The nasal care device 1000 of an embodiment of the present application includes a floating nozzle 100 and a drainage device 300 of any one of the above-mentioned embodiments. The floating nozzle 100 is installed on the drainage device 300. The drainage device 300 is connected to the water tank assembly 10 and is used to transport the liquid in the water tank assembly 10 to the spray assembly 30.

[0065] In the nasal cavity care device 1000 of the present application, the drainage device 300 can draw liquid from the water tank assembly 10 and pressurize the liquid so that the liquid can be sprayed through the spray assembly 30 of the floating nozzle 100 to clean the nasal cavity. The drainage device 300 can draw only liquid or simultaneously draw liquid and gas, so that the gas and liquid are mixed and sprayed through the floating nozzle 100 in the form of mist.

[0066] Furthermore, in certain embodiments, the drainage device 300 includes a top and a bottom facing each other. The top of the drainage device 300 can be coupled to the bottom of the water tank assembly 10, allowing the drainage device 300 to draw cleaning liquid from the liquid storage chamber 111 of the water tank assembly 10 and into the spray assembly 30 through the mounting cavity 113. The drainage device 300 has a central axis B that passes through at least two of the three-dimensional geometric center of the drainage device 300, the geometric center of a cross-section of the top of the drainage device 300, or the geometric center of a cross-section of the bottom of the drainage device 300. The central axis B of the drainage device 300 is at least perpendicular to the top and / or bottom of the drainage device 300. The central axis A of the water tank assembly 10 is parallel to or coincides with the central axis B of the drainage device 300. Part of the floating nozzle 100 is configured to move along the central axis B of the drainage device 300 in a first direction X toward the water tank assembly 10 and in a second direction Y away from the water tank assembly 10, with the first direction X being opposite to the second direction Y. When the nozzle assembly 50 of the floating nozzle 100 moves relative to the water tank assembly 10 in the first direction X, the nozzle assembly 50 can press against the interior of the nasal cavity, maintaining close contact with the nasal cavity. When the nozzle assembly 50 of the floating nozzle 100 moves relative to the water tank assembly 10 in the second direction Y, the user can squeeze the nozzle assembly 50 to properly position it within the nasal cavity.

[0067] In the description of this specification, the descriptions with reference to the terms "certain embodiments", "in an example", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0068] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A floating nozzle, wherein, Comprising: A water tank assembly, the water tank assembly including a liquid storage tank for storing a fluid; A spraying assembly, a first end of the spraying assembly being provided with a spraying port, a second end of the spraying assembly passing through the water tank assembly and communicating with the liquid storage tank, the spraying port being used for spraying the fluid outwards; and A nozzle assembly, the nozzle assembly being sleeved on the spraying assembly and located outside the water tank assembly, a first end of the nozzle assembly being provided with a liquid outlet, a flow channel being formed between the nozzle assembly and the spraying assembly; When the nozzle assembly is under force, a first end of the nozzle assembly is used to move relative to the water tank assembly in a first direction so as to conduct the flow channel; when the external force applied to the nozzle assembly is removed, a first end of the nozzle assembly is used to reset relative to the water tank assembly so as to disconnect the flow channel.

2. The floating nozzle according to claim 1, wherein, When the nozzle assembly is under force, the spraying port corresponds to the liquid outlet, the flow channel is conducted, and the fluid flows out through the spraying port and the liquid outlet; When the external force applied to the nozzle assembly is removed, the spraying port is offset from the liquid outlet, the flow channel is disconnected, and the fluid flows down along the inner wall of the nozzle assembly and the outer wall of the spraying assembly.

3. The floating nozzle according to claim 2, wherein, The liquid outlet is arranged on a side wall of the nozzle assembly, and the orientation of the liquid outlet is different from the first direction; when the nozzle assembly is under force, a first end of the nozzle assembly moves relative to the water tank assembly in the first direction so that the liquid outlet is directly opposite to the spraying port, and when the external force applied to the nozzle assembly is removed, a first end of the nozzle assembly resets so that the liquid outlet is offset from the spraying port.

4. The floating nozzle according to claim 2, wherein, The first direction is the same as the extending direction of the central axis of the water tank assembly; the spraying direction M of the spraying port is the same as the extending direction of the central axis of the water tank assembly, the spraying port is arranged at one end of the spraying assembly far from the water tank assembly, and the liquid outlet is arranged at the first end of the nozzle assembly.

5. The floating nozzle according to claim 3, wherein, The inner contour dimension of the liquid outlet is larger than the outer contour dimension of the spraying port so that when the liquid outlet is directly opposite to the spraying port, the spraying port is within the range of the liquid outlet.

6. The floating nozzle according to claim 3, wherein, A shielding portion is arranged inside the nozzle assembly, the shielding portion extending from the inner contour of the liquid outlet towards the central axis of the liquid outlet, and the shielding portion is used for shielding the fluid sprayed out from the spraying port.

7. The floating nozzle according to claim 1, wherein, The floating nozzle further includes: A guiding member, the guiding member being arranged inside the nozzle assembly, and the guiding member being used for cooperating with the first end of the spraying assembly to guide the spraying port to correspond to the liquid outlet.

8. The floating nozzle according to claim 1, wherein, The nozzle assembly includes: A nozzle, the nozzle being sleeved on the first end of the spraying assembly, the nozzle being provided with a deformation portion, and when the nozzle is under force, the deformation portion deforms so that a first end of the nozzle moves relative to the water tank assembly.

9. The floating nozzle according to claim 8, wherein, There are at least two deformation portions, and at least two deformation portions are spaced apart from each other; when the nozzle is under force, at least one of the at least two deformation portions deforms so that a first end of the nozzle moves relative to the water tank assembly.

10. The floating nozzle according to claim 1, wherein, The nozzle assembly includes: An elastic member, which is used for deformation so that when the nozzle assembly is stressed, the first end of the nozzle assembly moves relative to the water tank assembly and always fits against the nasal cavity; A first support member, which is connected to the elastic member and is arranged between the elastic member and the spraying assembly, and the first support member is used for contacting the spraying assembly to form the flow channel; and A second support member, which is connected to the elastic member, and the first support member and the second support member are spaced apart, and the second support member is connected to the water tank assembly so that the nozzle assembly is installed on the water tank assembly.

11. The floating nozzle according to claim 10, wherein, The elastic member is integrally formed, and a thinning portion is further provided on the lower peripheral wall of the elastic member, and the thinning portion is used for deformation so that the elastic member and the first support member move relative to the water tank assembly.

12. The floating nozzle according to claim 11, wherein, The lower peripheral wall is inclined relative to the surface of the water tank assembly facing the elastic member, so that there is a gap between the lower peripheral wall and the water tank assembly.

13. The floating nozzle according to claim 1, wherein, Along the direction of the central axis of the water tank assembly, the displacement distance of the first end of the nozzle assembly moving relative to the first end of the spraying assembly is less than the aperture of the liquid outlet.

14. The floating nozzle according to claim 1, wherein, When the nozzle assembly is stressed, a part of the structure of the nozzle assembly deforms to generate a restoring force for pushing the nozzle assembly to reset, and the magnitude range of the restoring force is [0.5N, 5.0N].

15. The floating nozzle according to claim 1, wherein, The nozzle assembly includes: A bracket, which is sleeved on the spraying assembly and installed on the water tank assembly, and a part of the outer wall of the spraying assembly is spaced from the inner wall of the bracket; and A nozzle, which is sleeved on one end of the bracket away from the water tank assembly, and the bracket is used for moving relative to the spraying assembly to drive the nozzle to move relative to the spraying assembly.

16. The floating nozzle according to claim 15, wherein, The nozzle assembly further includes: A reset member, one end of which is arranged on the inner wall of the bracket, and the other end of which is arranged on the outer wall of the spraying assembly; when the nozzle and the bracket are stressed, the reset member deforms to have a tendency to push the bracket and the nozzle to move to the original position.

17. The floating nozzle according to claim 1, wherein, The liquid storage tank is provided with a liquid storage chamber, an installation chamber and a waste liquid chamber, the installation chamber and the waste liquid chamber are spaced from each other, the liquid storage chamber and the waste liquid chamber are spaced from each other, the liquid storage chamber is used for storing fluid, the installation chamber is used for the fluid in the liquid storage tank to flow, and the waste liquid chamber is used for storing waste liquid; the water tank assembly further includes: a cover body, which is arranged on the liquid storage tank, the second end of the spraying assembly penetrates through the cover body and partially extends into the installation chamber, and the nozzle assembly is connected to the cover body.

18. The floating nozzle according to claim 17, wherein, The nozzle assembly is provided with a recovery port and a cavity communicated with the recovery port, and the recovery port is communicated with the waste liquid chamber and / or the liquid storage chamber through the cavity, so that the fluid flows into the waste liquid chamber and / or the liquid storage chamber.

19. The floating nozzle according to claim 18, wherein, Along the first direction, the distance between the recovery port and the lower peripheral wall of the cavity close to the cover body is greater than the displacement distance of the first end of the nozzle assembly moving relative to the water tank assembly.

20. The floating nozzle according to claim 18, wherein, The orientation of the liquid outlet intersects with the central axis of the water tank assembly, and the recovery port is arranged on the side facing the liquid outlet to be opposite to the liquid outlet.

21. The floating nozzle according to claim 17, wherein, The cover body is provided with a collection port which communicates with the waste liquid chamber and / or the liquid storage chamber to enable fluid to flow into the waste liquid chamber and / or the liquid storage chamber.

22. The floating nozzle according to claim 21, wherein, The second end of the spraying assembly penetrates through the collection port to extend into the flow channel; when the flow channel is disconnected, the fluid flowing out through the spraying port flows into the waste liquid chamber from the collection port along the inner wall of the nozzle assembly and the outer wall of the spraying assembly.

23. The floating nozzle according to claim 21, wherein, After the fluid flowing out through the spraying port and the liquid outlet port is used for cleaning, waste liquid is formed, and the waste liquid flows into the waste liquid chamber from the collection port along the outer wall of the nozzle assembly.

24. The floating nozzle according to claim 1, wherein, The nozzle assembly includes a nozzle, and the liquid outlet port is arranged on the nozzle. The spraying assembly includes: A guiding member, the spraying port is arranged at the first end of the guiding member, and the second end of the guiding member penetrates through the water tank assembly to communicate with the flow channel; and A spraying member, the spraying member is arranged at the spraying port, the spraying member corresponds to the liquid outlet port, and when the spraying port corresponds to the liquid outlet port, the fluid flowing from the guiding member to the spraying member is used to be sprayed out from the liquid outlet port.

25. The floating nozzle according to claim 24, wherein, The nozzle is used to move in a first direction close to the water tank assembly or a second direction away from the water tank assembly along the extending direction of the central axis of the water tank assembly, and the first direction is opposite to the second direction; The spraying direction M of the spraying member is the same as the extending direction of the central axis of the water tank assembly; or The first end of the guiding member is provided with a bent portion, the spraying member is arranged at the bent portion so that the spraying direction M of the spraying member intersects with the central axis of the water tank assembly, and the liquid outlet port is arranged on the side wall of the nozzle assembly corresponding to the spraying member.

26. The floating nozzle according to claim 24, wherein, A limiting portion is arranged on the outer wall of the guiding member, and a guiding groove is arranged on the outer wall of the nozzle assembly. The limiting portion is used to cooperate with the guiding groove to limit the displacement distance of the nozzle assembly relative to the guiding member along the direction of the central axis of the water tank assembly.

27. A floating nozzle, wherein, Comprising: A water tank assembly; A spraying assembly, the first end of the spraying assembly is provided with a spraying member, the second end of the spraying assembly penetrates through the water tank assembly and communicates with the water tank assembly, and the spraying member is used to spray fluid outwards; And A nozzle assembly for contacting with the nostril, the nozzle assembly is sleeved on the spraying assembly and located outside the water tank assembly. The nozzle assembly includes a deformation portion and a supporting portion. The deformation portion is used to deform so that one end of the nozzle assembly corresponding to the spraying member moves relative to the water tank assembly, so that the nozzle assembly fits with the nasal cavity. The first end of the spraying assembly penetrates through the supporting portion, and the supporting portion is used to cooperate with the spraying assembly so that there is a gap for fluid to flow through between the spraying assembly and the nozzle assembly.

28. The floating nozzle according to claim 27, wherein, The nozzle assembly includes: A nozzle, the nozzle is sleeved on the spraying assembly, the deformation portion and the supporting portion are connected and both arranged on the nozzle. When the nozzle is stressed, the deformation portion deforms so that the end of the nozzle away from the water tank assembly moves relative to the water tank assembly and fits with the nasal cavity.

29. The floating nozzle according to claim 28, wherein, The deformation part includes at least two, and at least two of the deformation parts are spaced apart from each other; when the nozzle is stressed, at least one of the at least two deformation parts deforms, so that one end of the nozzle away from the water tank assembly moves relative to the water tank assembly.

30. The floating nozzle according to claim 28, wherein, The deformation part is arranged on the side wall of the nozzle; and / or The deformation part is arranged on the bottom wall of the nozzle close to the water tank assembly.

31. The floating nozzle according to claim 27, wherein, Along the direction of the central axis of the water tank assembly, the displacement distance of the end of the spray head assembly away from the water tank assembly moving relative to the first end of the spraying assembly is not less than 2 mm.

32. The floating nozzle according to claim 27, wherein, When the spray head assembly is stressed, the magnitude range of the restoring force generated after part of the structure of the spray head assembly deforms for pushing the spray head assembly back to its original position is [0.5 N, 5.0 N].

33. The floating nozzle according to claim 27, wherein, The spray head assembly includes a nozzle, the deformation part is connected to the support part and both are arranged on the nozzle, one end of the water tank assembly connected to the spraying assembly is provided with a fixing part, the nozzle is sleeved on the fixing part, and the support part is connected to the fixing part so that the nozzle is installed on the water tank assembly.

34. According to the floating nozzle of claim 27, wherein, The support part is a bracket, the bracket is sleeved on the spraying assembly and installed on the water tank assembly, and a part of the outer wall of the spraying assembly is spaced from the inner wall of the bracket; the deformation part is a nozzle, the nozzle is sleeved on one end of the bracket away from the water tank assembly, and the bracket is used to move relative to the spraying assembly to drive the nozzle to move relative to the spraying assembly.

35. The floating nozzle according to claim 34, wherein, The spray head assembly further includes: A restoring member, one end of the restoring member is arranged on the inner wall of the bracket, and the other end of the restoring member is arranged on the outer wall of the spraying assembly; when the nozzle and the bracket are stressed, the restoring member deforms to have a tendency to push the bracket and the nozzle to move back to their original positions.

36. The floating nozzle according to claim 27, wherein, The water tank assembly includes: A liquid storage tank, the liquid storage tank is provided with an installation cavity and a liquid storage cavity, and the liquid storage cavity is used to store liquid; and A cover body, the cover body is arranged on the liquid storage tank to block the opening of the liquid storage cavity, the spraying assembly penetrates through the cover body and partially extends into the installation cavity, and the spray head assembly is connected to the cover body.

37. The floating nozzle according to claim 27, wherein, The spray head assembly includes a nozzle, the nozzle is provided with a liquid outlet, and the spraying assembly includes: A diversion member, the diversion member penetrates through the water tank assembly to communicate with the water tank assembly; and A spraying member, the spraying member is arranged at one end of the diversion member away from the water tank assembly, the spraying member corresponds to the liquid outlet, and the liquid flowing from the diversion member to the spraying member is used to be sprayed out from the liquid outlet.

38. The floating nozzle according to claim 37, wherein, A limiting part is arranged on the outer wall of the diversion member, and a guiding groove is arranged on the outer wall of the support part of the spray head assembly. The limiting part is used to cooperate with the guiding groove to limit the displacement distance of the spray head assembly relative to the diversion member along the direction of the central axis of the water tank assembly.

39. According to the floating nozzle of claim 37, wherein, The spraying direction M of the spraying member is the same as the extending direction of the central axis of the water tank assembly, and the liquid outlet is arranged at one end of the spraying assembly away from the water tank assembly; or One end of the flow guide member away from the water tank assembly is provided with a bent portion, and the spraying member is arranged at the bent portion so that the spraying direction M of the spraying member intersects with the central axis of the water tank assembly, and the liquid outlet is arranged corresponding to the side wall of the nozzle and the spraying member.

40. The floating nozzle according to claim 27, wherein, The floating nozzle further includes: a guiding member, which is arranged inside the nozzle assembly and is used to cooperate with one end of the spraying assembly away from the water tank assembly to guide the spraying member of the spraying assembly to correspond to the liquid outlet of the nozzle assembly.

41. A nasal cavity care device, wherein, including the floating nozzle according to any one of claims 27-40; and a drainage device, the floating nozzle is installed on the drainage device, and the drainage device is communicated with the water tank assembly and is used to transport the liquid in the water tank assembly to the spraying assembly.

42. The nasal cavity care device according to claim 41, wherein, The central axis of the water tank assembly is parallel to or coincides with the central axis of the drainage device, and a part of the structure of the floating nozzle is used to move along the central axis of the drainage device in a first direction away from the water tank assembly and a second direction close to the water tank assembly, and the first direction is opposite to the second direction.

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