Humidifying tank for breathing machine

Abstract

The utility model relates to the technical field of medical instruments, and discloses a humidifying tank for a breathing machine, the humidifying tank comprises a shell, an air inlet pipeline and an air outlet pipeline, a liquid storage cavity is formed in the shell, the air inlet pipeline comprises a first air inlet and a first air outlet, and an air inlet flow channel is formed between the first air inlet and the first air outlet; the air outlet pipeline comprises a second air inlet and a second air outlet, an air outlet flow channel is formed between the second air inlet and the second air outlet, the first air inlet and the second air outlet are located in the different sides of the shell correspondingly, and the first air outlet and the second air inlet are both located in the liquid storage cavity and have a certain distance from the inner wall of the shell. When the amount of liquid in the humidifying tank is at the maximum liquid level, the humidifying tank is rotated by any angle, and the liquid level of the liquid is lower than the height of the first air outlet and the height of the second air inlet, so that the liquid cannot enter the air inlet flow channel and the air outlet flow channel, the size of the whole machine is reduced, and the carrying burden of a user when the user goes out is reduced; the effect of being convenient for a user to carry outside is achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of medical devices, and specifically relates to a humidifier tank for a ventilator. Background Art

[0002] A ventilator is generally equipped with a blower. The air outlet of the blower interacts with the user through external pipes and a mask. The humidified air will make the user feel more comfortable and easier to be accepted by the user. Therefore, the humidification component has gradually become one of the essential components of the ventilator.

[0003] The humidification component is usually a humidification tank installed in the ventilator, which has a gas channel inside and is filled with humidification liquid. The gas blown out by the blower enters the interior of the humidification tank through the gas channel and comes into contact with the humidification liquid, thereby making the gas moist. The moistened gas then flows out from the outlet of the humidification tank to the user end to assist the user in breathing.

[0004] At present, the way to connect the humidifier tank and the ventilator is usually to set a accommodating cavity at the end of the ventilator host, and one end of the humidifier tank extends into the accommodating cavity to realize the connection between the humidifier tank and the ventilator host. This results in a larger volume of the entire machine, thereby increasing the burden on users to carry it out; in addition, the humidifier tank can only be used for one model of ventilator, which affects the flexibility of the humidifier tank. Utility Model Content

[0005] The present application provides a humidifier tank for a ventilator to reduce the burden on users when carrying the tank when going out, increase the flexibility of the humidifier tank, and improve the user experience.

[0006] The technical solutions adopted in this application are:

[0007] A humidifier tank for a ventilator, comprising:

[0008] a housing, wherein a liquid storage cavity is formed inside the housing;

[0009] an air intake pipeline, the air intake pipeline comprising a first air inlet and a first air outlet, an air intake flow passage being formed between the first air inlet and the first air outlet;

[0010] an air outlet pipeline, the air outlet pipeline comprising a second air inlet and a second air outlet, an air outlet passage being formed between the second air inlet and the second air outlet;

[0011] The first air inlet and the second air outlet are respectively located on different sides of the shell, and the first air outlet and the second air inlet are both located in the liquid storage chamber and have a certain distance from the inner wall of the shell. When the amount of liquid inside the humidifier tank is at the maximum liquid level, the humidifier tank is rotated at any angle, and the liquid level of the liquid is lower than the height of the first air outlet and the second air inlet, so that the liquid cannot enter the inlet flow channel and the outlet flow channel.

[0012] By adopting the above-mentioned technical solution, when using the humidification tank in the present application, the first air inlet is connected to the air outlet of the ventilator, so that the gas generated by the ventilator enters the inlet flow channel through the first air inlet, and the gas flows along the inlet flow channel and enters the liquid storage chamber through the first air outlet. The gas entering the liquid storage chamber contacts the liquid in the liquid storage chamber to make the gas moist. The moistened gas then enters the outlet flow channel through the second air inlet and flows out to the user end through the second air outlet to treat the user.

[0013] The connection method between the humidifier tank and the ventilator in this application is more flexible, thereby avoiding the need to set up a accommodating chamber in the ventilator, thereby reducing the volume of the entire machine, reducing the burden on users to carry it when going out, and achieving the effect of making it easier for users to carry it when going out; and the humidifier tank in this application can be separated from the ventilator, and then the humidifier tank can be cleaned and disinfected separately to extend the service life of the humidifier tank, thereby improving the user experience.

[0014] Moreover, since the first air inlet and the second air outlet in the present application are respectively located on different sides of the shell, on the one hand, it avoids the situation where the ventilator needs to be designed to avoid the first air inlet and the second air outlet being located on the same side of the shell, thereby simplifying the structural design of the ventilator, and at the same time enables the humidifier tank in the present application to be adapted to various models of ventilators to increase the flexibility of the humidifier tank; on the other hand, it is more convenient to miniaturize the humidifier tank to reduce the volume and weight of the humidifier tank, so as to further achieve the effect of being easy for users to carry, thereby further improving the user experience.

[0015] In addition, since the first air outlet and the second air inlet are at a certain distance from the inner wall of the shell, when the amount of liquid in the liquid storage chamber is at the maximum liquid level, the humidifier tank is rotated at any angle, and the liquid level is lower than the height of the first air outlet and the second air inlet, thereby avoiding the situation where the liquid in the liquid storage chamber may enter the inlet flow channel through the first air outlet and cause ventilator failure, thereby ensuring the service life of the ventilator, and at the same time avoiding the situation where the liquid in the liquid storage chamber may enter the outlet flow channel through the second air inlet and flow to the user end to affect the user experience, thereby further improving the user experience.

[0016] Optionally, the first air outlet and / or the second air inlet are arranged near the center of the liquid storage cavity.

[0017] By adopting the above technical solution, since the first air outlet and the second air inlet are arranged close to the center of the liquid storage chamber, on the one hand, it further avoids the situation where the liquid in the liquid storage chamber enters the inlet flow channel and the air outlet channel when the humidifier tank rotates, so as to further ensure the service life of the ventilator and further improve the user experience; on the other hand, it increases the maximum amount of liquid that can be accommodated in the liquid storage chamber, so as to reduce the user's frequency of adding liquid and extend the sustainable working time of the humidifier tank, thereby further improving the user experience.

[0018] Optionally, an air outlet blocking plate is provided in the liquid storage cavity and is opposite to the first air outlet, and the air outlet blocking plate is spaced apart from the first air outlet;

[0019] And / or, an air inlet blocking plate opposite to the second air inlet is provided in the liquid storage chamber, and the air inlet blocking plate is spaced apart from the second air inlet.

[0020] By adopting the above technical solution, since the air outlet blocking plate is arranged relative to the first air outlet, on the one hand, the air outlet blocking plate can block the opening direction of the first air outlet, so as to further prevent the liquid from entering the inlet flow duct through the first air outlet when the humidification tank rotates, thereby further reducing the failure rate of the ventilator to further ensure the service life of the ventilator. On the other hand, the air outlet blocking plate can block the gas flowing out through the first air outlet, so that the gas is more dispersed when entering the liquid storage chamber, thereby increasing the contact area between the gas and the liquid, and then increasing the wetting effect on the gas, so as to further improve the user experience; and since the air outlet blocking plate is spaced apart from the first air outlet, it is ensured that the gas in the inlet flow duct can be discharged normally through the first air outlet to ensure the wetting effect on the gas.

[0021] Since the air inlet blocking plate is arranged relative to the second air inlet, on the one hand, the air inlet blocking plate can block the opening direction of the second air inlet, so as to further prevent the liquid from entering the outlet flow channel through the second air inlet when the humidification tank rotates, thereby further preventing the liquid from entering the user end, so as to further improve the user experience. On the other hand, the air inlet blocking plate can also block the gas that is about to enter the second air inlet, so as to make the flow path of the gas in the liquid storage chamber more tortuous, so as to further increase the wetting effect on the gas, thereby further improving the user experience. And since the air inlet blocking plate is spaced apart from the second air inlet, it is ensured that the gas in the liquid storage chamber can enter the outlet flow channel through the second air inlet, so as to ensure the therapeutic effect on the user.

[0022] Optionally, the area of ​​the air outlet blocking plate is greater than or equal to the outlet area of ​​the first air outlet;

[0023] And / or, the area of ​​the air intake blocking plate is greater than or equal to the inlet area of ​​the second air intake port.

[0024] By adopting the above technical solution, since the area of ​​the air outlet blocking plate is greater than or equal to the outlet area of ​​the first air outlet, on the one hand, the air outlet blocking plate can completely block the first air outlet in the opening direction of the first air outlet, so as to improve the blocking effect of the air outlet blocking plate on the first air outlet, so as to further avoid the liquid in the liquid storage chamber from entering the inlet flow channel; on the other hand, the blocking effect of the air outlet blocking plate on the gas flowing out through the first air outlet is improved, so as to further improve the wetting effect on the gas.

[0025] Since the area of ​​the air inlet blocking plate is greater than or equal to the air inlet area of ​​the second air inlet, on the one hand, the air inlet blocking plate can completely block the second air inlet in the opening direction of the second air inlet, so as to improve the blocking effect of the air inlet blocking plate on the second air inlet, so as to further prevent the liquid in the liquid storage chamber from entering the outlet flow channel, and on the other hand, the blocking effect of the air outlet blocking plate on the gas flowing to the second air outlet is improved, so as to further improve the wetting effect on the gas.

[0026] Optionally, the intake air channel includes a first intake air channel extending outside the liquid storage chamber and a second intake air channel located inside the liquid storage chamber, and the first intake air channel and the second intake air channel are connected to each other;

[0027] The outlet flow channel includes a first outlet flow channel extending outside the liquid storage chamber and a second outlet flow channel located inside the liquid storage chamber, and the first outlet flow channel and the second outlet flow channel are communicated with each other.

[0028] By adopting the above technical solution, since the inlet flow channel includes a first inlet flow channel extending outside the liquid storage chamber, it is possible to facilitate the connection between the humidifier tank and the ventilator, thereby improving the installation efficiency of the humidifier tank to the ventilator, and at the same time greatly reducing the difficulty of installing the humidifier tank to the ventilator.

[0029] Since the outlet flow channel includes a first outlet flow channel extending outside the liquid storage chamber, it is possible to facilitate the connection of the humidification tank with the pipeline connected to the user end, thereby improving the assembly efficiency of the humidification tank and the user end, and at the same time greatly reducing the difficulty of assembling the humidification tank and the user end together.

[0030] Optionally, the second inlet air channel and the second outlet air channel are arranged in parallel.

[0031] By adopting the above technical solution, the second inlet flow channel and the second outlet flow channel are arranged in parallel to increase the regularity of the internal structure of the shell, thereby reducing the difficulty of assembling the humidifier tank and further improving the assembly efficiency of the humidifier tank.

[0032] Optionally, the first air outlet and the second air inlet have the same orientation, and a baffle is provided between the first air outlet and the second air inlet, and the baffle extends from between the first air outlet and the second air inlet in a direction away from the second inlet flow channel and the second outlet flow channel.

[0033] By adopting the above technical solution, since the first air outlet and the second air inlet are oriented in the same direction, the resistance to gas flow in the liquid storage chamber is reduced, allowing the gas to more easily enter the outlet flow channel through the second air inlet, thereby ensuring smooth gas flow. In addition, since a baffle is provided between the first air outlet and the second air inlet, the baffle can isolate the first air outlet and the second air inlet, ensuring that the gas flowing out of the first air outlet contacts the liquid before entering the outlet flow channel through the second air inlet. In other words, it prevents the gas flowing out of the first air outlet from directly entering the outlet flow channel through the second air inlet, thereby ensuring the humidification effect of the gas, thereby further improving the user experience.

[0034] Optionally, the second inlet air channel and the second outlet air channel are symmetrically arranged along the baffle.

[0035] By adopting the above technical solution, since the second inlet air duct and the second outlet air duct are symmetrically arranged along the baffle, the isolation effect of the baffle on the first air outlet and the second air inlet is increased, and at the same time the structure inside the shell is more regular, so as to further facilitate the assembly of the humidification tank.

[0036] Optionally, the first inlet air duct and the second inlet air duct are perpendicular to each other; the first outlet air duct and the second outlet air duct are perpendicular to each other.

[0037] By adopting the above technical solution, since the first inlet flow channel and the second inlet flow channel are perpendicular to each other, the direction of the first air inlet and the direction of the first air outlet are perpendicular to each other, and the first outlet flow channel and the second outlet flow channel are perpendicular to each other, so that the direction of the second air inlet and the direction of the second air outlet are perpendicular to each other, so as to increase the maximum amount of liquid that can be accommodated in the liquid storage chamber, thereby further reducing the user's frequency of adding liquid and extending the sustainable working time of the humidifier tank.

[0038] Optionally, the first inlet air channel and the first outlet air channel are arranged along a common central axis.

[0039] By adopting the above technical solution, since the first inlet air channel and the first outlet air channel are arranged on the same central axis, the stability of the humidifier tank is increased when the gas flows through the humidifier tank. At the same time, the connection position between the humidifier tank and the ventilator is coaxial with the connection position between the humidifier tank and the user end, so as to avoid the humidifier tank from being easily deflected, thereby increasing the stability of the humidifier tank.

[0040] Optionally, the shell is provided with an avoidance groove, at least a portion of the air outlet pipeline is located in the avoidance groove, and the height of the second air outlet is not greater than the top height of the avoidance groove.

[0041] By adopting the above technical solution, since at least part of the air outlet pipeline is located in the avoidance groove, after the external pipeline connected to the user end is connected to the air outlet pipeline, the external pipeline can contact the groove wall of the avoidance groove to increase the connection stability between the external pipeline and the air outlet pipeline; and the height of the second air outlet is not greater than the top height of the avoidance groove, so that the second air outlet can be hidden in the avoidance groove, thereby further reducing the volume of the humidification tank and making the external shape of the humidification tank more regular, so as to further achieve the effect of making it easier for users to carry the humidification tank. In addition, the outer side of the shell can protect the second air outlet to reduce the damage to the air outlet pipeline caused by collision with the humidification tank, thereby ensuring the service life of the humidification tank.

[0042] Optionally, the outer wall of the avoidance groove is provided with a snap groove for connecting to an external pipeline.

[0043] By adopting the above technical solution, since the outer wall of the avoidance groove is provided with a snap groove, after the external pipeline is assembled on the air outlet pipeline, the clamping block on the external pipeline can be extended into the snap groove and engage with the snap groove to avoid the external pipeline being separated from the air outlet pipeline due to being pulled, thereby further increasing the connection stability between the external pipeline and the air outlet pipeline.

[0044] Optionally, the shell is provided with a liquid discharge port connected to the liquid storage chamber, and a sealing member detachably connected to the shell is provided at the liquid discharge port, and the sealing member is used to seal the liquid discharge port.

[0045] By adopting the above technical solution, since a seal detachably connected to the shell is provided at the drain port, the liquid in the liquid storage chamber can be discharged through the drain port, so as to avoid the liquid from being deteriorated and producing odor due to long-term storage in the liquid storage chamber, thereby improving the user experience; at the same time, when the user cleans the liquid storage chamber, the cleaning water can also be discharged from the drain port, so as to achieve the effect of facilitating the user to clean the liquid storage chamber.

[0046] Optionally, the sealing member includes a connecting end and a movable end, the connecting end is hinged to the shell, and the movable end is provided with an elastic member, and the elastic member can abut against the drain port to seal the drain port.

[0047] By adopting the above technical solution, since the connecting end is hinged to the shell and the movable end is provided with an elastic member, when opening or sealing the drain port, it is only necessary to apply pressure toward the drain port or pressure away from the drain port to the movable end to rotate the movable end around the connecting end, thereby simplifying the operation steps for opening or sealing the drain port and reducing the difficulty of operation, so as to achieve the effect of facilitating the opening or sealing of the drain port.

[0048] Optionally, a sealing rib is further included, wherein the sealing rib and the shell together form a liquid storage cavity, and the liquid discharge port is arranged at the connection between the sealing rib and the shell.

[0049] By adopting the above technical solution, since the drain port is arranged at the connection between the sealing rib and the shell, the drain port is located at the corner of the shell, so that all the liquid in the liquid storage cavity can be discharged through the drain port, thereby increasing the cleanliness of the liquid storage cavity, and further avoiding the situation where the liquid remaining in the liquid storage cavity may deteriorate and produce odor, thereby further improving the user experience.

[0050] Optionally, the sealing member includes a connecting plate and a sealing plate connected to each other, and the elastic member is sleeved on the end of the sealing plate;

[0051] The sealing member further comprises a locking plate connected to the sealing plate, one end of the locking plate forms a force-bearing portion, and the other end forms a locking portion for buckling with the shell.

[0052] By adopting the above technical solution, when the drain port is opened, the force-bearing part is pressed toward the direction of the sealing plate to rotate the locking plate, and then the locking part moves in the direction away from the sealing plate, so that the locking part is released from the snapping with the shell, and then pressure is applied to the connecting plate away from the drain port, so that the connecting plate drives the sealing plate and the locking plate to rotate, and finally the elastic member is separated from the drain port to complete the opening of the drain port.

[0053] By setting the locking plate, on the one hand, the stability of the connection between the sealing member and the shell is increased when the sealing member seals the drain port, so as to ensure the sealing effect of the drain port. On the other hand, it is easy to release the engagement between the locking portion and the shell, so as to facilitate the opening of the drain port.

[0054] Optionally, a guide rib is provided in the liquid storage cavity, and the guide rib forms a guide slope, and the guide slope is used to guide the liquid to the liquid discharge port.

[0055] By adopting the above technical solution, when the liquid in the liquid storage chamber is discharged, the shell is rotated so that the discharge port is located at the lowest point of the shell, and then the liquid in the liquid storage chamber is completely discharged through the discharge port under the guidance of the guide slope, so as to further avoid the occurrence of liquid residue in the liquid storage chamber, thereby further improving the user experience.

[0056] Optionally, the sealing member is a flexible sealing plug.

[0057] By adopting the above technical solution, since the seal is a flexible sealing plug, the sealing effect of the seal on the drain port is increased, so that when opening or sealing the drain port, it is only necessary to pull or press the flexible sealing plug, thereby achieving the effect of facilitating the sealing or opening of the drain port; at the same time, the structure of the seal is simplified and the production cost of the seal is reduced, thereby reducing the production cost of the humidification tank; in addition, there is no need to make an avoidance design for the corresponding flexible sealing plug on the shell, so as to further increase the maximum amount of liquid that can be accommodated in the liquid storage chamber.

[0058] Optionally, the shell is provided with a maximum liquid level line, and when the height of the liquid reaches the maximum liquid level line, the volume of the liquid occupies at most one third of the total volume of the liquid storage chamber.

[0059] By adopting the above technical solution, since the shell is provided with a maximum liquid level line, when liquid is added to the liquid storage chamber, the maximum liquid level line can serve as a reference for the user, so as to facilitate the user to add an appropriate amount of liquid into the liquid storage chamber; at the same time, it also avoids the situation where the user adds too much liquid into the liquid storage chamber, causing the liquid to enter the inlet and outlet air channels, so as to ensure the service life of the ventilator and increase the user's experience.

[0060] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0061] 1. The humidifier tank in the present application includes a shell, an air inlet pipe and an air outlet pipe, a liquid storage chamber is formed inside the shell, the air inlet pipe includes a first air inlet and a first air outlet, an inlet flow channel is formed between the first air inlet and the first air outlet, the air outlet pipe includes a second air inlet and a second air outlet, an outlet flow channel is formed between the second air inlet and the second air outlet, the first air inlet and the second air outlet are respectively located on different sides of the shell, the first air outlet and the second air inlet are both located in the liquid storage chamber and have a certain distance from the inner wall of the shell, when the amount of liquid inside the humidifier tank is at the maximum liquid level, the humidifier tank is rotated at any angle, and the liquid level of the liquid is lower than the first air outlet and the second air outlet. The height of the two air inlets is such that liquid cannot enter the inlet and outlet air ducts, thereby making the connection between the humidifier tank and the ventilator more flexible. The present application avoids the need to set up a accommodating chamber in the ventilator, thereby reducing the volume of the entire machine, reducing the burden on users to carry it out, and achieving the effect of making it easier for users to carry it out; and the humidifier tank in the present application can be separated from the ventilator, and then the humidifier tank can be cleaned and disinfected separately to extend the service life of the humidifier tank, thereby improving the user's experience; at the same time, the humidifier tank in the present application can be adapted to various models of ventilators to increase the flexibility of the humidifier tank.

[0062] 2. The first air outlet and the second air inlet in the present application are arranged close to the center of the liquid storage chamber. On the one hand, this further prevents the liquid in the liquid storage chamber from entering the inlet flow channel and the air outlet channel when the humidifier tank rotates, thereby further ensuring the service life of the ventilator and further improving the user experience; on the other hand, it increases the maximum amount of liquid that can be accommodated in the liquid storage chamber, thereby reducing the user's frequency of adding liquid and extending the sustainable working time of the humidifier tank, thereby further improving the user experience.

[0063] 3. The liquid storage chamber in the present application is provided with an air outlet blocking plate opposite to the first air outlet. On the one hand, the air outlet blocking plate can block in the opening direction of the first air outlet to further prevent the liquid from entering the inlet flow channel through the first air outlet when the humidifier tank rotates, thereby further reducing the failure rate of the ventilator and further ensuring the service life of the ventilator. On the other hand, the air outlet blocking plate can block the gas flowing out through the first air outlet, so that the gas is more dispersed when entering the liquid storage chamber, thereby increasing the contact area between the gas and the liquid, and thus increasing the gas The wetting effect is achieved to further improve the user experience; the air outlet blocking tube plate is spaced apart from the first air outlet, thereby ensuring that the gas in the inlet flow channel can be normally discharged through the first air outlet, so as to ensure the wetting effect on the gas; an air intake blocking plate opposite to the second air inlet is provided in the liquid storage chamber, thereby ensuring that the gas in the inlet flow channel can be normally discharged through the first air outlet, so as to ensure the wetting effect on the gas; the air intake blocking plate is spaced apart from the second air inlet, thereby ensuring that the gas in the liquid storage chamber can enter the outlet flow channel through the second air inlet, so as to ensure the therapeutic effect on the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0065] Figure 1 This is a structural diagram of the humidification tank according to one embodiment of the present application;

[0066] Figure 2 This is a cross-sectional view of the humidification tank according to one embodiment of the present application, wherein the dotted line in the figure represents the liquid and the black arrow represents the direction of gas flow;

[0067] Figure 3 This is a cross-sectional view of the humidification tank according to one embodiment of the present application, mainly showing the state of the liquid when the humidification tank is at another angle, wherein the dotted line in the figure represents the liquid;

[0068] Figure 4 This is a cross-sectional view of the humidification tank according to one embodiment of the present application, mainly showing the state of the liquid when the humidification tank is at another angle, wherein the dotted line in the figure represents the liquid;

[0069] Figure 5 This is a cross-sectional view of the humidification tank according to one embodiment of the present application, mainly showing the state when the sealing member opens the drain port and discharges the liquid in the liquid storage chamber, wherein the dotted line in the figure represents the liquid;

[0070] Figure 6 This is a cross-sectional view of the humidification tank according to another embodiment of the present application;

[0071] Figure 7 This is a schematic diagram of an explosion of the humidification tank according to one embodiment of the present application;

[0072] Figure 8 This is a schematic diagram of an explosion of the humidification tank according to another embodiment of the present application;

[0073] Figure 9 This is a schematic diagram of one of the methods for adding liquid to the liquid storage chamber in this application;

[0074] Figure 10 This is a cross-sectional view of the humidification tank in a first orientation according to one embodiment of the present application, wherein the dotted line in the figure represents liquid;

[0075] Figure 11 This is a cross-sectional view of the humidification tank in one embodiment of the present application after being rotated 45° to the left in the first position, wherein the dotted line in the figure represents liquid;

[0076] Figure 12 This is a cross-sectional view of the humidification tank after being rotated 180° to the left in the first position in one embodiment of the present application, wherein the dotted line in the figure represents liquid.

[0077] Reference numerals:

[0078] 1. Shell; 11. Lower shell; 12. Upper cover; 13. Liquid storage chamber; 131. Guide rib; 14. Avoidance groove; 141. Buckle groove; 15. Drain port; 16. Sealing rib position; 17. Rib position; 18. Annular groove;

[0079] 2. Intake pipe; 21. First intake air channel; 211. First air inlet; 22. Second intake air channel; 221. First air outlet; 222. Air outlet blocking plate;

[0080] 3. Air outlet pipe; 31. First air outlet channel; 311. Second air outlet; 32. Second air outlet channel; 321. Second air inlet; 322. Air inlet blocking plate; 323. Baffle; 33. Connecting plate;

[0081] 4. Sealing member; 41. Connecting plate; 42. Sealing plate; 43. Locking plate; 431. Elastic arm; 44. Elastic member. DETAILED DESCRIPTION

[0082] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0083] The following description sets forth many specific details to facilitate a thorough understanding of the present application. However, the present application may also be implemented in other ways than those described herein, and therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features of each embodiment may be combined with each other unless there is a conflict.

[0084] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They 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. Therefore, they cannot be understood as limitations on the present application.

[0085] In this application, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0086] In this application, unless otherwise expressly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0087] Reference Figures 1 to 12, discloses a humidifier tank for a ventilator, which includes a shell 1, an air inlet pipe 2 and an air outlet pipe 3, wherein a liquid storage chamber 13 is formed inside the shell 1; the air inlet pipe 2 includes a first air inlet port 211 and a first air outlet port 221, an inlet flow channel is formed between the first air inlet port 211 and the first air outlet port 221; the air outlet pipe 3 includes a second air inlet port 321 and a second air outlet port 311, an outlet flow channel is formed between the second air inlet port 321 and the second air outlet port 311; the first air inlet port 211 and the second air outlet port 311 are respectively located on different sides of the shell 1, and the first air outlet port 221 and the second air inlet port 321 are both located in the liquid storage chamber 13 and have a certain distance from the inner wall of the shell 1. When the amount of liquid inside the humidifier tank is at the maximum liquid level, the humidifier tank is rotated at any angle, and the liquid level of the liquid is lower than the height of the first air outlet port 221 and the second air inlet port 321, so that the liquid cannot enter the inlet flow channel and the outlet flow channel.

[0088] It should be noted that the above-mentioned "the first air outlet 221 and the second air inlet 321 are both located in the liquid storage chamber 13 and have a certain distance from the inner wall of the shell 1" means that the first air outlet 221 and the second air inlet 321 are both at a certain distance from the walls of the liquid storage chamber 13, that is, the first air outlet 221 and the second air inlet 321 are located on the non-side of the liquid storage chamber 13.

[0089] When using the humidification tank in the present application, the first air inlet 211 is connected to the air outlet of the ventilator, so that the gas generated by the ventilator enters the inlet flow channel through the first air inlet 211, and the gas flows along the inlet flow channel and enters the liquid storage chamber 13 through the first air outlet 221. The gas entering the liquid storage chamber 13 contacts the liquid contained in the liquid storage chamber 13 to make the gas moist. The moistened gas then enters the outlet flow channel through the second air inlet 321 and flows out to the user end through the second air outlet 311 to treat the user.

[0090] The connection method between the humidifier tank and the ventilator in the present application is more flexible. It can be connected to the ventilator by means of tapered joints, snaps, threads, external pipes, etc., thereby avoiding the need to set up a accommodating cavity in the ventilator, thereby reducing the volume of the entire machine, reducing the burden on users to carry it out, and achieving the effect of making it easier for users to carry it out; and the humidifier tank in the present application can be separated from the ventilator, and then the humidifier tank can be cleaned and disinfected separately to extend the service life of the humidifier tank, thereby improving the user's experience.

[0091] Moreover, since the first air inlet 211 and the second air outlet 311 in the present application are respectively located on different sides of the shell 1, on the one hand, it avoids the situation where the ventilator needs to be designed to avoid the first air inlet 211 and the second air outlet 311 being located on the same side of the shell 1, thereby simplifying the structural design of the ventilator, and at the same time, it enables the humidifier tank in the present application to be adapted to various models of ventilators to increase the flexibility of the humidifier tank; on the other hand, it is more convenient to miniaturize the humidifier tank to reduce the volume and weight of the humidifier tank, so as to further achieve the effect of being easy for users to carry, thereby further improving the user experience.

[0092] In addition, since the first air outlet 221 and the second air inlet 321 are at a certain distance from the inner wall of the shell 1, when the amount of liquid in the liquid storage chamber 13 is at the maximum liquid level, the humidifier tank is rotated at any angle, and the liquid level is lower than the height of the first air outlet 221 and the second air inlet 321, thereby avoiding the liquid in the liquid storage chamber 13 from entering the inlet flow channel through the first air outlet 221 and causing ventilator failure, thereby ensuring the service life of the ventilator, and at the same time avoiding the liquid in the liquid storage chamber 13 from entering the outlet flow channel through the second air inlet 321 and flowing to the user end to affect the user experience, thereby further improving the user experience.

[0093] It should be noted that the humidifier tank of the present application may or may not have a heating function. As a preferred embodiment, the humidifier tank of the present application does not have a heating function and is not electrically connected to the ventilator, so as to further reduce the volume and weight of the humidifier tank, thereby further achieving the effect of being easier for users to carry.

[0094] Specifically, the shell 1 where the air inlet end of the humidifier tank is located is called the air inlet end wall, the shell 1 where the air outlet end is located is called the air outlet end wall, and the shell between the air inlet end wall and the air outlet end wall is called the side wall. Along the extension direction of the side wall, the cross-sectional shape of the humidifier tank is adapted to the shape of the ventilator host to enhance the integrity of the humidifier tank and the ventilator host. For example, it can be a rectangle with rounded corners.

[0095] Further, refer to Figure 10 A rib 17 is provided on the outer edge of the air inlet end wall for interference fit with the ventilator host to achieve connection between the humidifier tank and the host; and / or an annular groove 18 is provided on the air inlet end wall for interference fit with the ventilator host to achieve connection between the humidifier tank and the host.

[0096] Specifically, Figure 9 The placement position of the humidification tank shown is taken as the first orientation. At this time, the internal cross-sectional view of the humidification tank when the liquid level reaches the maximum is as shown in FIG. Figure 10 As shown, the cross-sectional view of the humidification tank obtained by rotating the humidification tank 45 degrees to the left from the first orientation is as shown in FIG.Figure 11 As shown, the cross-sectional view of the humidification tank after rotating 90° to the left is as shown in FIG. 4B. Figure 2 As shown, the cross-sectional view of the humidification tank after rotating 180° to the left is as shown in FIG. 4C. Figure 12 As shown, the cross-sectional view of the humidification tank after rotating 90° to the right from the first orientation is as shown in FIG. 4D. Figure 3 As shown, the cross-sectional view of the humidification tank after rotating 90° forward or backward from the first orientation is as shown in FIG. 4E. Figure 4 As shown in the above figures, when the liquid is at the maximum liquid level, the liquid level is lower than the height of the first gas outlet 221 and the second gas inlet 321, no matter how much the humidification tank is rotated.

[0097] In an embodiment, the first gas outlet 221 is arranged close to the center of the liquid storage cavity 13, so as to avoid the liquid in the liquid storage cavity 13 entering the gas inlet channel through the first gas outlet 221 when the humidification tank is rotated, thereby ensuring the service life of the breathing machine.

[0098] In another embodiment, the second gas inlet 321 is arranged close to the center of the liquid storage cavity 13, so as to avoid the liquid in the liquid storage cavity 13 entering the gas outlet channel through the second gas inlet 321 when the humidification tank is rotated, thereby further improving the user experience.

[0099] In a preferred embodiment, referring to Figure 2 , Figure 3 , Figure 5 and Figure 6 , the first gas outlet 221 and the second gas inlet 321 are both arranged close to the center of the liquid storage cavity 13, which on the one hand further avoids the liquid in the liquid storage cavity 13 entering the gas inlet channel and the gas outlet channel when the humidification tank is rotated, thereby further ensuring the service life of the breathing machine and further improving the user experience; and on the other hand increases the maximum amount of liquid that can be contained in the liquid storage cavity 13, thereby reducing the frequency of liquid addition by the user and prolonging the sustainable working time of the humidification tank, and thereby further improving the user experience.

[0100] It should be noted that the “maximum amount of liquid that can be contained in the liquid storage cavity 13” in the present application does not refer to the maximum capacity of the liquid storage cavity 13, but refers to the maximum capacity of the liquid that cannot enter the gas inlet channel and the gas outlet channel when the humidification tank is rotated.

[0101] In a preferred embodiment, referring to Figure 2 , Figure 3 , Figure 5 and Figure 6An air outlet blocking plate 222 is provided in the liquid storage chamber 13 opposite the first air outlet 221. On the one hand, the air outlet blocking plate 222 can block the opening direction of the first air outlet 221 to further prevent liquid from entering the inlet flow channel through the first air outlet 221 when the humidifier tank rotates or shakes, thereby further reducing the failure rate of the ventilator and further ensuring the service life of the ventilator. On the other hand, the air outlet blocking plate 222 can block the gas flowing out through the first air outlet 221, so that the gas is more dispersed when entering the liquid storage chamber 13, thereby increasing the contact area between the gas and the liquid, thereby increasing the wetting effect on the gas, and further improving the user experience. In addition, the air outlet blocking plate 222 is spaced apart from the first air outlet 221, thereby ensuring that the gas in the inlet flow channel can be discharged normally through the first air outlet 221 to ensure the wetting effect on the gas.

[0102] Furthermore, the area of ​​the air outlet blocking plate 222 is greater than or equal to the outlet area of ​​the first air outlet 221. On the one hand, the air outlet blocking plate 222 can completely block the first air outlet 221 in the opening direction of the first air outlet 221, so as to improve the blocking effect of the air outlet blocking plate 222 on the first air outlet 221, so as to further avoid the liquid in the liquid storage chamber 13 from entering the inlet flow channel. On the other hand, the blocking effect of the air outlet blocking plate 222 on the gas flowing out through the first air outlet 221 is improved, so as to further improve the wetting effect on the gas.

[0103] In a preferred embodiment, referring to Figure 2 、 Figure 3 、 Figure 5 and Figure 6 An air inlet blocking plate 322 is provided within the liquid storage chamber 13, opposite the second air inlet 321. This allows the air inlet blocking plate 322 to block the opening of the second air inlet 321, further preventing liquid from entering the outlet flow channel through the second air inlet 321 when the humidifier tank rotates or shakes, thereby further preventing liquid from entering the user end and further improving the user experience. Furthermore, the air inlet blocking plate 322 blocks gas about to enter the second air inlet 321, making the gas flow path within the liquid storage chamber 13 more tortuous, further enhancing the humidification effect on the gas and further improving the user experience. Furthermore, the air inlet blocking plate 322 is spaced apart from the second air inlet 321, ensuring that gas in the liquid storage chamber 13 can enter the outlet flow channel through the second air inlet 321, thereby ensuring the therapeutic effect on the user.

[0104] Furthermore, the area of ​​the air inlet blocking plate 322 is greater than or equal to the inlet area of ​​the second air inlet 321. On the one hand, the air inlet blocking plate 322 can completely block the second air inlet 321 in the opening direction of the second air inlet 321, so as to improve the blocking effect of the air inlet blocking plate 322 on the second air inlet 321, so as to further prevent the liquid in the liquid storage chamber 13 from entering the outlet flow channel. On the other hand, the blocking effect of the air outlet blocking plate 222 on the gas flowing to the second air outlet 311 is improved, so as to further improve the wetting effect on the gas.

[0105] Specifically, this application does not impose any specific restrictions on the relative position of the outlet baffle 222 and the inlet baffle 322. The outlet baffle 222 and the inlet baffle 322 may or may not be located on the same plane; preferably, the outlet baffle 222 and the inlet baffle 322 are located on the same plane. Furthermore, when the humidifier tank is rotated 90° to the left or right from the first orientation, the liquid level is lower than the plane where the outlet baffle 222 and the inlet baffle 322 are located, thereby further ensuring the liquid blocking effect.

[0106] The present application does not make any specific limitation on the positional relationship between the inlet and outlet channels and the liquid storage chamber 13. Preferably, refer to Figure 2 and Figure 3 The inlet flow channel includes a first inlet flow channel 21 extending from the outside of the liquid storage chamber 13 and a second inlet flow channel 22 located inside the liquid storage chamber 13, and the first inlet flow channel 21 and the second inlet flow channel 22 are connected to each other; the outlet flow channel includes a first outlet flow channel 31 extending from the outside of the liquid storage chamber 13 and a second outlet flow channel 32 located inside the liquid storage chamber 13, and the first outlet flow channel 31 and the second outlet flow channel 32 are connected to each other.

[0107] That is, both the inlet flow channel and the outlet flow channel have a portion located inside the liquid storage chamber 13 and a portion located outside the liquid storage chamber 13 .

[0108] It can be understood that the first air inlet 211 is located at the end of the first inlet duct 21 away from the second inlet duct 22, and the first air outlet 221 is located at the end of the second inlet duct 22 away from the first inlet duct 21; the second air inlet 321 is located at the end of the second outlet duct 32 away from the first outlet duct 31, and the second air outlet 311 is located at the end of the first outlet duct 31 away from the second outlet duct 32.

[0109] Since the inlet flow channel includes the first inlet flow channel 21 extending outside the liquid storage chamber 13, it is possible to facilitate the connection between the humidifier tank and the ventilator, thereby improving the installation efficiency of the humidifier tank to the ventilator and greatly reducing the difficulty of installing the humidifier tank on the ventilator. Since the outlet flow channel includes the first outlet flow channel 31 extending outside the liquid storage chamber 13, it is possible to facilitate the connection between the humidifier tank and the pipeline connected to the user end, thereby improving the assembly efficiency of the humidifier tank and the user end and greatly reducing the difficulty of assembling the humidifier tank and the user end.

[0110] The present application does not specifically limit the positional relationship between the second inlet flow channel 22 and the second outlet flow channel 32. Preferably, refer to Figure 2 and Figure 3 The second inlet air channel 22 and the second outlet air channel 32 are arranged in parallel to increase the regularity of the internal structure of the shell 1, thereby reducing the difficulty of assembling the humidification tank and improving the assembly efficiency of the humidification tank.

[0111] Further, refer to Figure 2 and Figure 3 The first air outlet 221 and the second air inlet 321 are oriented in the same direction, thereby reducing the resistance of the gas flowing in the liquid storage chamber 13, so that the gas can more easily enter the outlet flow channel through the second air inlet 321 to ensure the smoothness of the gas flow. At the same time, the first air outlet 221 and the second air inlet 321 can be made as close to the center position of the liquid storage chamber 13 as possible to further increase the maximum amount of liquid that can be accommodated in the liquid storage chamber 13. In addition, a baffle 323 is provided between the first air outlet 221 and the second air inlet 321, and the baffle 323 extends from between the first air outlet 221 and the second air inlet 321 in a direction away from the second inlet flow channel 22 and the second outlet flow channel 32, so that the baffle 323 can isolate the first air outlet 221 and the second air inlet 321 to ensure that the gas flowing out through the first air outlet 221 contacts the liquid and then enters the outlet flow channel through the second air inlet 321, that is, it avoids the situation that the gas flowing out through the first air outlet 221 directly enters the outlet flow channel through the second air inlet 321, extends the flow path of the gas, and thereby ensures the wetting effect of the gas, so as to further improve the user experience.

[0112] Furthermore, the second inlet air duct 22 and the second outlet air duct 32 are symmetrically arranged along the baffle 323, thereby increasing the isolation effect of the baffle 323 on the first air outlet 221 and the second air inlet 321, and at the same time making the structure inside the shell 1 more regular, so as to further achieve the effect of facilitating the assembly of the humidification tank.

[0113] The present application does not make any specific limitation on the arrangement of the baffle 323, which may be as follows:Figure 2 and Figure 3 The wall structure shown as extending from the wall of the second outlet channel 32 near the second outlet channel can also be a rib structure provided on the wall of the liquid storage chamber 13. When the baffle 323 is a wall structure formed by extending from the wall of the second outlet channel 32, both the inlet blocking plate 322 and the outlet blocking plate 222 can be provided at the end of the baffle 323 away from the second inlet channel 22 and the second outlet channel 32, or one of the inlet blocking plate 322 and the outlet blocking plate 222 can be provided on the baffle 323, while the other can be provided on the wall of the liquid storage chamber 13.

[0114] In other embodiments, the first inlet flow channel 21 and the second outlet flow channel 32 are coaxially arranged, so that the first air outlet 221 and the second air inlet 321 are arranged opposite each other, and the baffle 323 is located between the first air outlet 221 and the second air inlet 321. The area of ​​the baffle 323 is larger than the outlet area of ​​the first air outlet 221 and the inlet area of ​​the second air inlet 321, so as to prevent the gas flowing out of the first air outlet 221 from directly entering the outlet flow channel through the second air inlet 321, thereby ensuring the humidification effect of the gas. In this embodiment, the inlet baffle 322 and the outlet baffle 222 can be eliminated, or the inlet baffle 322, the outlet baffle 222, and the baffle 323 can be combined into one. Of course, the first inlet flow channel 21 and the second outlet flow channel 32 can also be arranged at an angle.

[0115] Further, refer to Figure 2 and Figure 3 , the first inlet flow channel 21 and the second inlet flow channel 22 are perpendicular to each other; the first outlet flow channel 31 and the second outlet flow channel 32 are perpendicular to each other, so that the direction of the first air inlet 211 and the direction of the first air outlet 221 are perpendicular to each other, and the direction of the second air inlet 321 and the direction of the second air outlet 311 are perpendicular to each other, so as to increase the maximum amount of liquid that can be accommodated in the liquid storage chamber 13, so as to further reduce the user's frequency of adding liquid and extend the sustainable working time of the humidifier tank.

[0116] The present application does not specifically limit the positional relationship between the first inlet flow channel 21 and the first outlet flow channel 31. Preferably, refer to Figure 2 and Figure 3 The first inlet flow channel 21 and the first outlet flow channel 31 are arranged along a common central axis, thereby increasing the stability of the humidifier when gas flows through the humidifier. At the same time, the connection point between the humidifier and the ventilator is coaxial with the connection point between the humidifier and the user end, thereby preventing the humidifier from easily deflecting and further increasing the stability of the humidifier. In other embodiments, the central axes of the first inlet flow channel 21 and the first outlet flow channel 31 can also be arranged parallel to each other or at an angle.

[0117] In other embodiments, the inlet and outlet channels may be completely located inside the liquid storage chamber 13 , and the first air inlet 211 and the second air outlet 311 may be located on the outer wall of the housing 1 .

[0118] In a preferred embodiment, referring to Figures 2 to 6 The shell 1 is provided with an avoidance groove 14 , at least part of the air outlet pipe 3 is located in the avoidance groove 14 , and the height of the second air outlet 311 is not greater than the top height of the avoidance groove 14 .

[0119] It should be noted that the height of the second air outlet 311 is not greater than the top height of the avoidance groove 14, which means that the second air outlet 311 does not protrude from the outer wall surface of the shell 1, that is, the second air outlet 311 is flush with the outer wall surface of the shell 1 or recessed in the outer wall surface of the shell 1.

[0120] The outer wall of the housing 1 can protect the second air outlet 311 from being damaged due to the collision of the air outlet pipe 3 and the like. Figure 9 As shown, when humidifying liquid is added to the humidifying tank from the first air inlet 211, the height of the second air outlet 311 is not greater than the top height of the avoidance groove 14, which can ensure that the end face where the second air outlet 311 is located can be placed horizontally on a plane, making it more convenient for users to add humidifying liquid.

[0121] Further, refer to Figure 4 and Figure 7 The outer wall of the avoidance groove 14 is provided with a snap groove 141 for connecting the external pipeline. After the external pipeline is assembled on the air outlet pipeline 3, the clamping block on the external pipeline can extend into the snap groove 141 and engage with the snap groove 141 to avoid the external pipeline being separated from the air outlet pipeline 3 due to being pulled, thereby further increasing the connection stability between the external pipeline and the air outlet pipeline 3.

[0122] In a preferred embodiment, referring to Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 、 Figure 7 andFigure 8 The shell 1 is provided with a drain port 15 connected to the liquid storage chamber 13. The drain port 15 is provided with a seal 4 detachably connected to the shell 1. The seal 4 is used to seal the drain port 15, so that the liquid in the liquid storage chamber 13 can be discharged through the drain port 15, so as to avoid the liquid from being deteriorated and producing odor due to long-term storage in the liquid storage chamber 13, thereby improving the user experience; at the same time, when the user cleans the liquid storage chamber 13, the cleaning water can also be discharged from the drain port 15, so as to achieve the effect of facilitating the user to clean the liquid storage chamber 13.

[0123] The present application does not specifically limit the structure of the seal 4, which can adopt any of the following embodiments:

[0124] Implementation method 1: In this implementation method, refer to Figure 2 、 Figure 3 、 Figure 5 and Figure 7 The sealing member 4 includes a connecting end and a movable end. The connecting end is hinged to the housing 1. The movable end is provided with an elastic member 44. The elastic member 44 can abut the drain port 15 to seal the drain port 15. Then, when opening or sealing the drain port 15, it is only necessary to apply pressure toward the drain port 15 or away from the drain port 15 to the movable end to rotate the movable end around the connecting end. This simplifies the operation steps for opening or sealing the drain port 15 and reduces the difficulty of operation, so as to achieve the effect of facilitating the opening or sealing of the drain port 15.

[0125] Further, refer to Figure 3 and Figure 5 The humidifier tank further includes a sealing rib 16 , which together with the shell 1 form a liquid storage chamber 13 , and a liquid discharge port 15 is provided at the connection between the sealing rib 16 and the shell 1 .

[0126] It can be understood that the shell 1 is recessed inward to form an escape space, and the wall of the escape space forms a sealing rib 16. When the seal 4 closes the drain port 15, at least part of the seal 4 is located in the escape space to reduce the volume of the humidification tank.

[0127] Since the drain port 15 is arranged at the connection between the sealing rib 16 and the shell 1, the drain port 15 is located at the corner of the shell 1, so that all the liquid in the liquid storage chamber 13 can be discharged through the drain port 15, thereby increasing the cleanliness of the liquid storage chamber 13, and further preventing the liquid remaining in the liquid storage chamber 13 from deteriorating and producing odor, thereby further improving the user experience.

[0128] Specifically, the horizontal plane where the sealing rib 16 is located can be flush with the edge of the second air inlet 321. This setting makes the horizontal plane where the sealing rib 16 is located the maximum liquid level line. When the liquid level of the added liquid exceeds the horizontal plane where the sealing rib 16 is located, the liquid will flow out from the second air inlet 321, which is convenient for the user to control the amount of liquid added and control the liquid added volume within a certain range, thereby avoiding overflow of humidification liquid when the humidification tank is rotated to different angles.

[0129] Specifically, the side of the sealing rib position 16 is also provided with a connecting rib, which connects the sealing rib position 16 to the air outlet end wall. There is a gap between the connecting rib and the side wall to form a liquid storage space. This setting method can control the maximum volume of liquid added to ensure that the liquid will not flow out from the first air outlet 221 or the second air inlet 321 when rotating at any angle.

[0130] Further, refer to Figure 3 、 Figure 5 and Figure 7 The seal 4 includes a connecting plate 41 and a sealing plate 42 connected to each other, and an elastic member 44 is sleeved on the end of the sealing plate 42; the seal 4 also includes a locking plate 43 connected to the sealing plate 42, one end of the locking plate 43 forms a force-bearing part, and the other end forms a locking part for snapping the shell 1.

[0131] It is understood that the end of the connecting plate 41 away from the sealing plate 42 is hinged to the shell 1, so that the end of the connecting plate 41 away from the sealing plate 42 forms a connecting end, and the end of the sealing plate 42 away from the connecting plate 41 forms a movable end. The shell 1 is provided with a locking groove, and the locking portion can be engaged with the locking groove to achieve locking of the seal 4. The sealing plate 42 and the locking plate 43 are connected by an elastic arm 431. The elastic arm 431 is located in the middle of the length direction of the locking plate 43, so that when the force-bearing portion is pressed in the direction close to the sealing plate 42, the locking plate 43 applies force to the elastic arm 431, thereby causing the elastic arm 431 to deform and the locking portion to move in the direction away from the sealing plate 42 to achieve the release of the locking portion from the shell 1. After the pressure on the force-bearing portion is released, the elastic arm 431 resumes its deformation, so that the locking portion returns to its initial position.

[0132] When the drain port 15 is opened, the force-bearing portion is pressed toward the direction of the sealing plate 42 to rotate the locking plate 43, and then the locking portion moves in a direction away from the sealing plate 42, so that the locking portion is released from the housing 1, and then pressure is applied to the connecting plate 41 away from the drain port 15, so that the connecting plate 41 drives the sealing plate 42 and the locking plate 43 to rotate, and finally the elastic member 44 is separated from the drain port 15 to complete the opening of the drain port 15.

[0133] By setting the locking plate 43, on the one hand, the connection stability between the sealing member 4 and the shell 1 is increased when sealing the drain port 15, so as to ensure the sealing effect of the drain port 15. On the other hand, it is easy to release the engagement between the locking portion and the shell 1, so as to facilitate the opening of the drain port 15.

[0134] In addition, since the elastic member 44 is sleeved on the end of the sealing plate 42 , the sealing plate 42 can support the elastic member 44 , thereby increasing the sealing effect of the elastic member 44 on the liquid discharge port 15 .

[0135] Preferably, the inner wall of the elastic member 44 is provided with a snap-in groove, and the sealing plate 42 is provided with a snap-in block corresponding to the snap-in groove. After the elastic member 44 is sleeved on the sealing plate 42, the snap-in block is snapped into the snap-in groove to increase the connection stability between the elastic member 44 and the sealing plate 42.

[0136] The present application does not specifically limit the structure of the elastic member 44. Preferably, the elastic member 44 is a sleeve structure made of silicone material to enhance the sealing effect of the elastic member 44 on the drain port 15. In other embodiments, the elastic member 44 can also be made of other materials.

[0137] Further, refer to Figure 3 and Figure 5 A guide rib 131 is provided in the liquid storage chamber 13 , and the guide rib 131 forms a guide slope, which is used to guide the liquid to the discharge port 15 .

[0138] When discharging the liquid in the liquid storage chamber 13, the shell 1 is rotated so that the drain port 15 is located at the lowest point of the shell 1, and then the liquid in the liquid storage chamber 13 is completely discharged through the drain port 15 under the guidance of the guide slope, so as to further avoid the occurrence of liquid residue in the liquid storage chamber 13, thereby further improving the user experience.

[0139] The present application does not make any specific limitation on the formation method of the guide rib 131. Preferably, refer to Figure 3 and Figure 5 The guide rib 131 is formed by thickening the wall of the housing 1 corresponding to the liquid discharge port 15, thereby reducing the difficulty and cost of producing the humidifier tank; it also reduces the impact on the structural strength of the housing 1 caused by the need to provide a locking groove. In other embodiments, the guide rib 131 can also be formed as a block structure provided in the liquid storage chamber 13.

[0140] In this embodiment, the liquid discharge port 15 and the second air outlet 311 are located on the same side of the housing 1 so that the seal 4 and the ventilator are avoided, thereby achieving the effect of facilitating the connection between the humidifier tank and the ventilator.

[0141] Implementation method 2: In this implementation method, refer to Figure 6 and Figure 8 The sealing member 4 is a flexible sealing plug, which increases the sealing effect of the sealing member 4 on the drain port 15, so that when opening or sealing the drain port 15, it is only necessary to pull or press the flexible sealing plug, thereby achieving the effect of facilitating the sealing or opening of the drain port 15; at the same time, the structure of the sealing member 4 is simplified and the production cost of the sealing member 4 is reduced, thereby reducing the production cost of the humidification tank; in addition, there is no need to make an avoidance design for the corresponding flexible sealing plug on the shell 1, so as to further increase the maximum amount of liquid that can be accommodated in the liquid storage chamber 13.

[0142] Preferably, the flexible sealing plug has a sealing column that can be interference fit with the drain port 15 and a flexible sheet located outside the shell 1. The shell 1 is provided with a connecting column, and the flexible sheet is passed through the connecting column. Then, after the sealing column is separated from the drain port 15, the flexible sealing plug is connected to the shell 1 through the flexible sheet and the connecting column to avoid the flexible sealing plug from being easily lost, thereby further improving the user experience.

[0143] In this embodiment, the drain opening and the first air inlet 211 are located on the same side of the shell 1, so that after the humidifier tank is connected to the ventilator, the ventilator can block the flexible sealing plug to increase the connection stability between the flexible sealing plug and the drain port 15, thereby ensuring the sealing effect of the drain port 15.

[0144] In a preferred embodiment, the housing 1 is provided with a maximum liquid level line. When the height of the liquid reaches the maximum liquid level line, the volume of the liquid accounts for at most one third of the total volume of the liquid storage chamber 13 .

[0145] Preferably, when the height of the liquid reaches the maximum liquid level line, the volume of the liquid accounts for one quarter of the total volume of the liquid storage chamber 13 .

[0146] Since the shell 1 is provided with a maximum liquid level line, the maximum liquid level line can serve as a reference for the user when adding liquid to the liquid storage chamber 13, so as to facilitate the user to add an appropriate amount of liquid to the liquid storage chamber 13; at the same time, it also avoids the situation where the user adds too much liquid into the liquid storage chamber 13, causing the liquid to enter the inlet and outlet air ducts, so as to ensure the service life of the ventilator and increase the user's experience.

[0147] By controlling the ratio of the volume of the liquid to the total volume of the liquid storage chamber 13 when the height of the liquid reaches the maximum liquid level line, it can be ensured that when the humidification tank is rotated to various angles, the liquid level height is lower than the height of the first air outlet 221 and the second air inlet 321, so as to prevent the liquid from flowing out through the first air outlet 221 or the second air inlet 321.

[0148] It should be noted that there are two ways to fill the liquid chamber 13 with liquid, one of which is to keep the first air inlet 211 vertically upward, so as to fill the liquid chamber 13 with liquid by filling the first air inlet 211 with liquid; the other is to keep the second air outlet 311 vertically upward, so as to fill the liquid chamber 13 with liquid by filling the second air outlet 311 with liquid; and the maximum liquid level line in the application can be provided with two groups for the two ways of filling liquid, so that the user has a reference when filling the liquid chamber 13 with water by any way, or the maximum liquid level line is provided with a group corresponding to any way.

[0149] In a preferred embodiment, with reference to Figure 7 and Figure 8 , the shell 1 includes a lower shell 11 and an upper cover 12 arranged on the lower shell 11, the lower shell 11 has a through port for the air outlet pipeline 3 to pass through, the air outlet pipeline 3 is provided with a connecting plate 33 abutting the through port, the connecting plate 33 is located inside the lower shell 11, and the air inlet pipeline 2 is integrally formed on the upper cover 12. After the upper cover 12 is connected to the lower shell 11, the air inlet pipeline 2 exerts a pressure on the air outlet pipeline 3 towards the through port, so that the connecting plate 33 is tightly abutted on the lower shell 11 under the action of the air outlet pipeline 3, thereby realizing the extrusion fixing of the air outlet pipeline 3, and further reducing the production difficulty and production cost of the humidification tank.

[0150] The application does not make specific limitations on the manufacturing materials of the humidification tank, preferably, the humidification tank is made of transparent materials, such as acrylic materials or transparent PET materials, etc., so that the user can observe the amount of liquid in the liquid chamber 13 at any time. In other embodiments, the humidification tank can also be made of other non-transparent materials.

[0151] The places not mentioned in the application can be realized by using or referring to the existing technology.

[0152] Each embodiment in the specification is described in a progressive manner, and the same and similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the differences from other embodiments.

[0153] The above only describes the embodiments of the application and is not intended to limit the application. Those skilled in the art can make various modifications and changes to the application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of the claims of the application.

Claims

1. A humidifier tank for a ventilator, characterized in that: include: A housing (1), wherein a liquid storage chamber (13) is formed inside the housing (1); An air intake pipeline (2), the air intake pipeline (2) comprising a first air intake port (211) and a first air outlet port (221), an air intake flow channel being formed between the first air intake port (211) and the first air outlet port (221); An air outlet pipeline (3), the air outlet pipeline (3) comprising a second air inlet (321) and a second air outlet (311), an air outlet passage being formed between the second air inlet (321) and the second air outlet (311); The first air inlet (211) and the second air outlet (311) are respectively located on different sides of the shell (1); the first air outlet (221) and the second air inlet (321) are both located in the liquid storage chamber (13) and have a certain distance from the inner wall of the shell (1); when the amount of liquid inside the humidifier tank is at the maximum liquid level, the humidifier tank is rotated at any angle, and the liquid level of the liquid is lower than the height of the first air outlet (221) and the second air inlet (321), so that the liquid cannot enter the inlet flow channel and the outlet flow channel.

2. A humidifier tank for a breathing machine according to claim 1, characterized in that, The first air outlet (221) and / or the second air inlet (321) are arranged close to the center of the liquid storage chamber (13).

3. A humidifier tank for a breathing machine according to claim 1, characterized in that, An air outlet blocking plate (222) is provided in the liquid storage cavity (13) and is opposite to the first air outlet (221), and the air outlet blocking plate (222) is spaced apart from the first air outlet (221); And / or, an air intake blocking plate (322) is provided in the liquid storage cavity (13) and is opposite to the second air intake port (321), and the air intake blocking plate (322) is spaced apart from the second air intake port (321).

4. A humidifier tank for a breathing machine according to claim 3, characterized in that, The area of ​​the gas outlet blocking plate (222) is greater than or equal to the outlet area of ​​the first gas outlet (221); And / or, the area of ​​the air intake blocking plate (322) is greater than or equal to the inlet area of ​​the second air intake port (321).

5. A humidifier tank for a breathing machine according to claim 1, characterized in that, The intake air channel comprises a first intake air channel (21) extending outside the liquid storage chamber (13) and a second intake air channel (22) located inside the liquid storage chamber (13), wherein the first intake air channel (21) and the second intake air channel (22) are communicated with each other; The outlet flow channel comprises a first outlet flow channel (31) extending outside the liquid storage chamber (13) and a second outlet flow channel (32) located inside the liquid storage chamber (13), and the first outlet flow channel (31) and the second outlet flow channel (32) are connected to each other.

6. A humidifier tank for a breathing machine according to claim 5, characterized in that: The second inlet flow channel (22) and the second outlet flow channel (32) are arranged in parallel.

7. A humidifier tank for a breathing machine according to claim 6, characterized in that: The first air outlet (221) and the second air inlet (321) have the same orientation, and a baffle (323) is provided between the first air outlet (221) and the second air inlet (321), and the baffle (323) extends from between the first air outlet (221) and the second air inlet (321) in a direction away from the second inlet flow channel (22) and the second outlet flow channel (32).

8. A humidifier tank for a breathing machine according to claim 7, characterized in that: The second inlet air channel (22) and the second outlet air channel (32) are symmetrically arranged along the baffle (323).

9. A humidifier tank for a breathing machine according to claim 5, characterized in that: The first inlet air channel (21) and the second inlet air channel (22) are perpendicular to each other; the first outlet air channel (31) and the second outlet air channel (32) are perpendicular to each other.

10. A humidifier tank for a breathing machine according to claim 5, characterized in that: The first inlet flow channel (21) and the first outlet flow channel (31) are arranged along a common central axis.

11. A humidifier tank for a breathing machine according to claim 1, characterized in that: The housing (1) is provided with an avoidance groove (14), at least a portion of the air outlet pipeline (3) is located in the avoidance groove (14), and the height of the second air outlet (311) is not greater than the top height of the avoidance groove (14).

12. A humidifier tank for a breathing machine according to claim 11, characterized in that: The outer wall of the avoidance groove (14) is provided with a snap groove (141) for connecting to an external pipeline.

13. A humidifier tank for a breathing machine according to claim 1, characterized in that: The housing (1) is provided with a liquid discharge port (15) in communication with the liquid storage chamber (13); a sealing member (4) detachably connected to the housing (1) is provided at the liquid discharge port (15); the sealing member (4) is used to seal the liquid discharge port (15).

14. A humidifier tank for a breathing machine according to claim 13, characterized in that: The sealing member (4) comprises a connecting end and a movable end, the connecting end is hinged to the housing (1), and the movable end is provided with an elastic member (44), and the elastic member (44) can abut against the liquid discharge port (15) to seal the liquid discharge port (15).

15. A humidifier tank for a breathing machine according to claim 14, characterized in that: It also includes a sealing rib (16), wherein the sealing rib (16) and the shell (1) together form a liquid storage cavity (13), and the liquid discharge port (15) is arranged at the connection between the sealing rib (16) and the shell (1).

16. A humidifier tank for a breathing machine according to claim 15, characterized in that: The sealing member (4) comprises a connecting plate (41) and a sealing plate (42) connected to each other, and the elastic member (44) is sleeved on the end of the sealing plate (42); The sealing member (4) further comprises a locking plate (43) connected to the sealing plate (42); one end of the locking plate (43) forms a force-bearing portion, and the other end forms a locking portion for buckling the housing (1).

17. A humidifier tank for a breathing machine according to claim 15, characterized in that: A guide rib (131) is provided in the liquid storage cavity (13), and the guide rib (131) forms a guide slope, and the guide slope is used to guide the liquid to the liquid discharge port (15).

18. A humidifier tank for a breathing machine according to claim 13, characterized in that: The sealing member (4) is a flexible sealing plug.

19. A humidifier tank for a breathing machine according to claim 1, characterized in that: The housing (1) is provided with a maximum liquid level line. When the height of the liquid reaches the maximum liquid level line, the volume of the liquid occupies at most one third of the total volume of the liquid storage chamber (13).

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