Ventilation treatment equipment and liquid inlet mechanism and humidifying device thereof

Abstract

The utility model relates to the field of ventilation equipment, and discloses ventilation treatment equipment and a liquid inlet mechanism and a humidifying device of the ventilation treatment equipment, the liquid inlet mechanism comprises a shell with a gas-liquid conveying cavity, and a liquid inlet, a liquid outlet and a ventilation port which are respectively communicated with the gas-liquid conveying cavity are formed in the shell. The ventilation port is communicated with the liquid inlet, so that liquid introduced from the liquid inlet is filled into the liquid storage container through the liquid outlet, and filling is stopped when the liquid in the liquid storage container blocks the ventilation port. Liquid in the sealed container flows into the gas-liquid conveying cavity from the liquid inlet and then flows into the liquid storage container from the liquid outlet, and gas enters the ventilation port from the liquid storage container, enters the gas-liquid conveying cavity through the ventilation port and then is discharged to the sealed container from the liquid inlet, so that gas-liquid exchange between the sealed container and the liquid storage container is completed. When the liquid level in the liquid storage container rises to block the ventilation port, the gas in the liquid storage container cannot enter the sealed container, the liquid in the sealed container cannot be discharged, and liquid discharging is stopped.

Description

Technical Field

[0001] This utility model relates to ventilation equipment, specifically to a ventilation therapy device and its fluid inlet mechanism and humidification device. Background Technology

[0002] Ventilation therapy equipment, as an assisted respiratory therapy device with artificial ventilation function, supplies breathing gas to the user through a breathing tube and user interface. By increasing the user's lung ventilation, it effectively improves the user's respiratory function and plays an important role in assisting the user's breathing. Commonly used ventilation therapy equipment is usually equipped with a humidification container, so that the airflow flowing through the humidification container is heated and humidified before being delivered to the user, so as to provide the user with a good breathing experience.

[0003] The humidification container is a key component of the overall design of ventilation therapy equipment. It is typically connected between the main unit of the ventilation therapy equipment and the breathing tubing. The humidification container stores a certain amount of water. By heating the water in the humidification container, the gas passing through the humidification container is humidified. The humidified airflow then travels through the breathing tubing to the breathing mask or nasal cannula and enters the user's body.

[0004] Currently available humidification containers typically control the amount of water added by adding water level markers and manual operation. However, manual control is prone to errors, such as insufficient heating power and inadequate humidification capacity due to adding too much liquid, or dry burning of the container due to adding too little liquid. Utility Model Content

[0005] The purpose of this invention is to overcome the problems in the existing technology where the water level in the humidification container is easily deviated due to human control, resulting in insufficient heating power when there is too much liquid or dry burning of the container when there is too little liquid. The invention provides a ventilation therapy device and its liquid inlet mechanism and humidification device, which has a ventilation port and a liquid outlet. When the liquid level in the storage container rises to the point of blocking the ventilation port, the liquid being discharged from the liquid outlet into the storage container is stopped, thereby realizing automatic control of the liquid level in the storage container and reducing errors.

[0006] To achieve the above objectives, the first aspect of this utility model provides a liquid inlet mechanism for a liquid storage container. The liquid inlet mechanism includes a housing with a gas-liquid conveying chamber. The housing has an inlet, an outlet, and a vent port that are respectively connected to the gas-liquid conveying chamber, so as to allow liquid introduced from the inlet to be filled into the liquid storage container through the outlet, and to stop filling when the liquid in the liquid storage container blocks the vent port.

[0007] Preferably, the gas-liquid conveying chamber includes a liquid inlet chamber and a venting chamber. The liquid inlet chamber includes a liquid inlet and a liquid outlet, and the venting chamber includes a venting port and a venting connection port. When the liquid inlet mechanism is installed on the liquid storage container, the side closest to the liquid in the liquid storage container is set as the venting port, and the venting connection port is connected to the liquid inlet.

[0008] Preferably, the housing includes a main housing and a side housing disposed on one side of the main housing, the main housing forming a liquid inlet chamber and the side housing forming a venting chamber.

[0009] Preferably, the top of the main shell forms a liquid inlet, and the main shell is recessed from the side wall at the bottom towards the top to form at least one notch, which is set as a liquid outlet.

[0010] Preferably, the liquid inlet mechanism further includes an on / off control component movably disposed within the gas-liquid delivery chamber. The liquid inlet chamber includes a first chamber connected to the liquid inlet and a second chamber connected to the liquid outlet. The on / off control component can be driven to isolate and connect the first chamber with the second chamber and the venting chamber.

[0011] Preferably, the liquid inlet mechanism further includes an elastic reset component, which is connected to the housing and the on / off control component respectively. The reset component is configured to be driven by the compressive force to move the on / off control component, so that the first chamber is connected to the second chamber and the venting chamber, and the on / off control component is driven by its own elastic force to reset to the isolated position between the first chamber and the second chamber and the venting chamber.

[0012] Preferably, a liquid connection port and a gas connection port are respectively provided in the first cavity, the second cavity is connected to the first cavity through the liquid connection port, and the venting cavity is connected to the first cavity through the gas connection port. The on / off control component isolates or connects the first cavity and the second cavity and the venting cavity by blocking or opening the liquid connection port and the gas connection port.

[0013] Preferably, a partition is provided at the end of the first cavity near the second cavity and the venting cavity, and both the liquid connection port and the gas connection port are formed on the partition.

[0014] Preferably, the on / off control component includes a blocking part located in the first cavity and a transmission part extending from the first cavity to the second cavity. The transmission part is connected to the blocking part, and the blocking part moves in the first cavity by driving the transmission part to move in the second cavity.

[0015] Preferably, the transmission part includes a water column that is movable relative to the liquid connection port and a limiting plate located in the second cavity. The size of the limiting plate and the sealing part are both larger than the liquid connection port, so that the movement range of the water column is limited by both of them.

[0016] Preferably, the limiting plate is configured such that the shape and size of its outer edge are consistent with the cross-section of the second cavity, and a water passage hole is provided on the limiting plate so that the liquid in the second cavity can flow through the water passage hole.

[0017] Preferably, an inflow gap is provided between the side of the water column and the liquid inlet, so that the liquid in the first chamber enters the second chamber through the inflow gap.

[0018] Preferably, a water channel is formed on the side of the water column, and the liquid flowing into the second cavity through the inflow gap flows through the water channel.

[0019] Preferably, one end of the reset component is a fixed end and the other end is a movable end. The movable end is connected to the transmission part, and the fixed end is connected to the housing inside the second cavity. The fixed end is located on the side of the second cavity near the sealing part, and the movable end is located on the side of the second cavity away from the sealing part. By moving the movable end closer to the fixed end to compress the reset component, the sealing part is driven to move away from the liquid inlet.

[0020] Preferably, the reset component is sleeved on the outside of the water column, and the movable end is connected to the side of the water column near the limiting plate, or connected to the limiting plate.

[0021] The second aspect of this utility model provides a humidification device, including a liquid storage container and the aforementioned liquid inlet mechanism, wherein the liquid inlet mechanism is detachably connected to the liquid storage container.

[0022] Preferably, the liquid storage container includes a main body and a mounting part. The main body has a main cavity, and the mounting part has a mounting cavity communicating with the main cavity. The liquid inlet mechanism is sealed and installed on the mounting part so that the gas-liquid delivery cavity communicates with the mounting cavity.

[0023] Preferably, a driving component is provided inside the mounting cavity, and when the liquid inlet mechanism is installed on the mounting part, the driving component makes the mounting cavity communicate with the liquid inlet.

[0024] Preferably, the mounting part further includes a water storage structure disposed in the mounting cavity. When the liquid inlet mechanism is installed on the mounting part, the liquid outlet and the vent are both located inside the water storage structure. The water storage structure is configured such that when the liquid storage container is rotated 90° from the working position in at least one direction, the liquid outlet and the vent are both located below or flush with the liquid surface inside the water storage structure.

[0025] Preferably, the water storage structure includes multiple annular plates of different diameters, which are arranged in a ring-shaped manner with increasing diameter to form an annular flow channel between adjacent annular plates. Each annular plate has a first liquid inlet connected to the annular flow channel. The first liquid inlets of two adjacent annular plates are circumferentially staggered. The surrounding area of ​​the innermost annular plate forms a flow-limiting cavity for connecting the gas-liquid transport chamber. The liquid outlet and the air inlet are both located within the flow-limiting cavity.

[0026] Preferably, the circumferential misalignment angle α of the first liquid inlet of the adjacent annular plates is 90° to 180°.

[0027] Preferably, the bottom wall of the annular flow channel is configured to slope from high to low towards the first liquid inlet in accordance with the flow direction of the liquid during filling.

[0028] Preferably, the liquid storage container has an inlet and outlet port connected to the main cavity, and a buffer cover extending into the main cavity is provided inside the liquid storage container corresponding to the inlet and outlet port. The side of the buffer cover is provided with a buffer hole connecting the inlet and outlet port and the main cavity.

[0029] Preferably, a driving component protruding from its bottom wall is formed in the flow-limiting cavity. When the liquid inlet mechanism is installed on the mounting part, the driving component contacts the on / off control component and compresses the reset component, so that the on / off control component connects the first cavity and the second cavity and the venting cavity.

[0030] Preferably, the driving component includes a top post and a sealing element connected to the top post. The driving component is elastically connected in the flow-limiting cavity, such that in its natural state, the sealing element seals the opening of the mounting cavity that communicates with the liquid inlet mechanism.

[0031] The third aspect of this utility model provides a ventilation therapy device, including a main unit and the aforementioned humidification device.

[0032] Preferably, the main unit is configured to pressurize breathable gas and deliver the pressurized gas to a humidification device, which humidifies the gas before outputting it; wherein the main unit and the humidification device are connected in a vertical direction, or the main unit and the humidification device are connected in a horizontal direction.

[0033] With the above technical solution, when the liquid source comes from a sealed container (e.g., a water bottle), the liquid in the sealed container flows into the gas-liquid conveying chamber from the inlet, and then flows into the storage container from the outlet. Simultaneously, to ensure the smooth outflow of liquid from the sealed container, gas enters the vent from the storage container, passes through the vent into the gas-liquid conveying chamber, and then exits from the inlet back into the sealed container, completing the gas-liquid exchange between the sealed container and the storage container. When the liquid level in the storage container rises to the point of blocking the vent, gas in the storage container can no longer enter the sealed container, and liquid inside the sealed container can no longer be discharged, thus stopping the outflow and fixing the liquid level in the storage container. When the liquid inlet mechanism is applied to ventilation therapy equipment (such as ventilators), it firstly frees up the user's hands. The sealed container containing the liquid source (such as a water bottle) is inverted and placed on the liquid inlet mechanism, which is then connected to the storage container. This allows the liquid in the sealed container to automatically flow into the storage container, reducing the weight burden on the user when holding the sealed container or the storage container for liquid filling. Secondly, due to the ventilation port design, when the liquid level in the ventilation therapy equipment reaches a certain level, liquid cannot continue to enter the ventilation equipment, achieving automatic control of the liquid level in the storage container. When the liquid level in the storage container reaches the preset capacity level, it automatically stops filling the storage container. When the liquid level in the storage container falls below the preset capacity level, the liquid in the sealed container is automatically filled into the storage container until the preset capacity level is reached. This achieves automatic liquid filling and level control, avoiding situations where too much or too little liquid is added, or even forgetting to add water, due to human error. This also prevents problems such as insufficient heating power or dry burning of the container. Attached Figure Description

[0034] Figure 1 This is a perspective view of the liquid inlet mechanism of this utility model;

[0035] Figure 2 yes Figure 1 A stereoscopic view from a second perspective;

[0036] Figure 3 yes Figure 1 A stereoscopic view from a third perspective;

[0037] Figure 4 yes Figure 1 A stereoscopic view from a fourth perspective;

[0038] Figure 5 yes Figure 1 Longitudinal sectional view;

[0039] Figure 6 yes Figure 5 A plan view from another perspective;

[0040] Figure 7 yes Figure 1 A three-dimensional view of the housing of the liquid inlet mechanism;

[0041] Figure 8 yes Figure 7 A stereoscopic view from a second perspective;

[0042] Figure 9 yes Figure 7 A stereoscopic view from a third perspective;

[0043] Figure 10 yes Figure 7 The longitudinal section diagram shows that single-line arrows indicate the direction of liquid flow, and double-line arrows indicate the direction of gas flow.

[0044] Figure 11 yes Figure 1 A three-dimensional view of the on / off control components of the liquid inlet mechanism;

[0045] Figure 12 yes Figure 11 A stereoscopic view from another perspective;

[0046] Figure 13 yes Figure 12 A 3D view of the control unit after the gasket has been removed;

[0047] Figure 14 yes Figure 13 A stereoscopic view from a second perspective;

[0048] Figure 15 yes Figure 13 A stereoscopic view from a third perspective;

[0049] Figure 16 This is a perspective view of the humidification device of this utility model;

[0050] Figure 17 yes Figure 16 The longitudinal section diagram shows that the single-line arrow indicates the direction of liquid flow, the double-line arrow indicates the direction of gas flow, and the dashed line represents the highest filling level.

[0051] Figure 18 yes Figure 17 A magnified view of a portion of the image;

[0052] Figure 19 yes Figure 16 A 3D diagram showing the humidification device in conjunction with a water bottle;

[0053] Figure 20 yes Figure 19 Longitudinal section view;

[0054] Figure 21 yes Figure 16 A perspective view of the liquid storage container of the humidification unit;

[0055] Figure 22 yes Figure 21Partial longitudinal section view of the mounting section of the humidification device;

[0056] Figure 23 yes Figure 21 A three-dimensional view of the liquid storage container after the upper shell has been removed;

[0057] Figure 24 yes Figure 21 A three-dimensional view of the liquid storage container after both the upper shell and the mounting shell have been removed;

[0058] Figure 25 yes Figure 24 Top view;

[0059] Figure 26 yes Figure 21 A plan view of the installation part of the liquid storage container in a forward-tilted state, where the dashed line represents the highest liquid level;

[0060] Figure 27 yes Figure 21 A plan view of the installation part of the liquid storage container in a backward tilted state, where the dashed line represents the highest liquid level;

[0061] Figure 28 yes Figure 21 A plan view of the installation part of the liquid storage container in a left-tilted state, where the dashed line represents the highest liquid level;

[0062] Figure 29 yes Figure 21 A plan view of the installation part of the liquid storage container in a right-tilted state, where the dashed line represents the highest liquid level;

[0063] Figure 30 yes Figure 21 A three-dimensional view of the top cover of the liquid storage container;

[0064] Figure 31 yes Figure 30 A stereoscopic view from another perspective;

[0065] Figure 32 This is a perspective view of the first embodiment of the ventilation device of this utility model in conjunction with a water bottle;

[0066] Figure 33 yes Figure 32 A 3D view of the humidification equipment and main unit working together in a central ventilation system;

[0067] Figure 34 This is a perspective view of the second embodiment of the ventilation device of this utility model in conjunction with a water bottle;

[0068] Figure 35 yes Figure 34 A 3D view of the humidification equipment and main unit working together in a central ventilation system;

[0069] Figure 36 This is a perspective view of the third embodiment of the ventilation device of this utility model in conjunction with a water bottle.

[0070] Explanation of reference numerals in the attached figures

[0071] 10-Liquid inlet mechanism; 11-Housing shell; 111-Gas-liquid conveying chamber; 1111-First chamber; 1112-Second chamber; 1113-Ventilation chamber; 112-Liquid inlet; 113-Liquid outlet; 114-Ventilation port; 115-Main shell; 116-Side shell; 117-Partition plate; 1171-Liquid connection port; 1172-Gas connection port; 118-Connector; 1181-Thread; 119-Reinforcing plate; 12-On / off control component; 121-Sealing part; 1211-Plug; 12111-Groove; 1212-Sealing gasket; 122-Transmission part; 1221-Water column; 12211-Water groove; 1222-Limiting plate; 12221-Water hole; 12222-Mounting protrusion; 13-Reset component; 14-Sealing ring; L1-Height difference;

[0072] 20-Liquid storage container; 21-Main body; 211-Main cavity; 212-Air inlet; 213-Air outlet; 214-Buffer cover; 2141-Buffer hole; 2151-Mounting buckle; 217-Heating plate; 218-First sealing silicone; 219-Second sealing silicone; 2110-Second liquid inlet; 22-Mounting part; 221-Mounting cavity; 222-Annular plate; 2221-First liquid inlet; 223-Drive component; 2231-Sealing element; 2232-Top column; 224-Protective cover; 227-Third sealing silicone; 228-Mounting hole; 229-Annular flow channel; 2210-Flow limiting cavity; 2211-Connecting buckle; 23-Upper shell; 24-Lower shell; 25-Mounting shell;

[0073] 1-Humidification device; 2-Main unit; 9-Water bottle. Detailed Implementation

[0074] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" generally refer to the upper, lower, left, and right positions in the corresponding drawings. "Inner" and "outer" refer to the inner and outer accommodating spaces of the corresponding container components.

[0075] Reference Figures 1 to 15 As shown, this utility model provides a liquid inlet mechanism 10 for a liquid storage container. The liquid inlet mechanism 10 includes a housing 11 having a gas-liquid conveying chamber 111. The housing 11 has an inlet 112, an outlet 113, and a vent 114 respectively connected to the gas-liquid conveying chamber 111, so that liquid introduced from the inlet 112 can be filled into the liquid storage container 20 through the outlet 113. When the liquid in the liquid storage container 20 blocks the vent 114, the outlet 113 stops discharging liquid.

[0076] A sealed container (e.g., water bottle 9) for liquid supply is connected to the liquid inlet mechanism 10. Liquid in the sealed container enters the gas-liquid conveying chamber 111 from the liquid inlet 112, and after passing through the gas-liquid conveying chamber 111, it flows out from the liquid outlet 113 into the liquid storage container 20. At the same time, gas in the liquid storage container 20 enters the gas-liquid conveying chamber 111 through the vent 114, and after passing through the gas-liquid conveying chamber 111, it flows out from the liquid inlet 112 into the sealed container, filling the space released by the liquid outflow in the sealed container, thus realizing the gas-liquid exchange between the liquid storage container 20 and the sealed container. The liquid level in the storage container 20 gradually rises until the liquid in the storage container 20 exceeds the vent port 114. At this point, the vent port 114 is blocked by the liquid, and the gas in the storage container 20 can no longer enter the sealed container through the vent port 114 and the inlet port 112. The pressure inside the sealed container is in a balanced state, and the liquid inside can no longer enter the storage container 20 through the inlet port 112 and the outlet port 113. In other words, the liquid level in the storage container 20 no longer rises and reaches the maximum filling level.

[0077] When the liquid inlet mechanism 10 is applied to ventilation therapy equipment (such as a ventilator), it first frees up the user's hands. The sealed container containing the liquid source (such as a water bottle 9) is inverted onto the liquid inlet mechanism 10, and then the liquid inlet mechanism 10 is connected to the liquid storage container 20. This allows the liquid in the sealed container to automatically flow into the liquid storage container 20, reducing the weight burden on the user when holding the sealed container or the liquid storage container 20 for liquid filling. Furthermore, due to the ventilation port 114, when the liquid level in the ventilation therapy equipment reaches a certain point, liquid cannot continue to enter the ventilation equipment, thus... The automatic control of the liquid level in the liquid storage container 20 means that when the liquid level in the liquid storage container 20 reaches the level corresponding to the preset capacity, the filling of liquid into the liquid storage container 20 will automatically stop. When the liquid level in the liquid storage container 20 is lower than the level corresponding to the preset capacity, the liquid in the sealed container will be automatically filled into the liquid storage container 20 until the level corresponding to the preset capacity is reached. This achieves automatic liquid filling and liquid level control, avoiding situations where too much or too little liquid is added or even water is forgotten due to human error. This also avoids problems such as insufficient heating power or dry burning of the container.

[0078] Therefore, the application of the liquid inlet mechanism 10 facilitates automatic liquid filling into the liquid storage container 20 and automatic control of the liquid level. Since ventilation therapy equipment (such as ventilators) is generally equipped with a humidification device to heat and humidify the therapeutic gas, the humidification device heats the stored liquid (such as the liquid in the liquid storage container 20) to achieve the purpose of heating and humidifying the therapeutic gas flowing through the stored liquid. It can be seen that ensuring that the liquid in the liquid storage container 20 is at an appropriate level is an important prerequisite for the good humidification of the therapeutic gas flowing through it. For example, if there is too much liquid in the liquid storage container 20, the liquid heating device of the ventilation therapy equipment will have insufficient heating power, resulting in insufficient evaporation of the liquid in the liquid storage container 20 and poor gas humidification effect. In addition, if there is too little liquid in the liquid storage container 20, the temperature of the humidified therapeutic gas flowing out of the liquid storage container 20 will be too high, and there is also a risk of the container drying out due to failure to replenish the liquid in time, which may pose a safety hazard.

[0079] By coordinating the liquid in the storage container 20 with the vent port 114, automatic control of the liquid level in the storage container 20 is achieved, replacing the manual control method in the prior art. This avoids insufficient heating power and poor heating and humidification effects due to excessive addition of liquid (generally water or aqueous solution) to the storage container 20, and also avoids the safety hazard of dry burning of the storage container 20 due to failure to add liquid in time. Specifically, as... Figure 10 As shown, a single arrow indicates the direction of liquid flow. After entering the gas-liquid conveying chamber 111 from the inlet 112, the liquid flows out from the outlet 113. A double arrow indicates the direction of gas flow. After entering the gas-liquid conveying chamber 111 from the vent 114, the gas flows out from the inlet 112. The direction of liquid flow is opposite to that of gas flow, so as to realize the gas-liquid exchange between the sealed container and the liquid storage container 20 through the different flow directions of gas and liquid.

[0080] In some embodiments, the gas-liquid conveying chamber 111 includes a liquid inlet chamber and a venting chamber 1113. The two ends of the liquid inlet chamber include a liquid inlet 112 and a liquid outlet 113, respectively. The venting chamber 1113 includes a venting port 114 and a gas connection port 1172. When the liquid inlet mechanism 10 is installed on the liquid storage container 20, the side closer to the liquid in the liquid storage container 20 is set as the venting port 114, and the gas connection port 1172 is connected to the liquid inlet 112.

[0081] The liquid inlet chamber includes a first chamber 1111 and a second chamber 1112, which will be described later, and a venting chamber 1113 for the passage of gas.

[0082] In some embodiments, when the liquid inlet mechanism 10 is installed in the liquid storage container 20, a height difference L1 is formed between the vent port 114 and the bottom wall of the liquid storage container 20 at the corresponding position. This height difference L1 forms the highest filling liquid level in the liquid storage container 20.

[0083] like Figure 17 As shown, the liquid level in the storage container 20 rises within this height difference L1 range until it is the same as the height difference L1. At this point, the liquid level exactly blocks the vent port 114, preventing gas-liquid exchange. Liquid no longer flows from the outlet 113 into the storage container 20, and the liquid level in the storage container 20 reaches its maximum, i.e., the highest filling level. Specifically, as shown... Figure 17 As shown in the figure, the dotted line represents the highest filling level in the liquid storage container 20, which is on the same horizontal plane as the vent port 114.

[0084] In some embodiments, the housing 11 includes a main housing 115 and a side housing 116 disposed on one side of the main housing 115. When the liquid inlet mechanism 10 is installed in the liquid storage container 20, the bottom end face of the side housing 116, i.e. the vent port 114, forms a height difference L1 with the bottom wall of the liquid storage container 20 at the location of the side housing 116.

[0085] The liquid outlet 113 is formed on the bottom end face of the main shell 115, that is, the top opening of the main shell 115 is the liquid inlet 112, and the bottom opening is the liquid outlet 113; or the liquid outlet 113 is formed on the side (side wall) near the bottom end of the main shell 115, for example, the main shell 115 is recessed from the bottom side wall towards the top end of the main shell 115 to form at least one notch, and the notch is the liquid outlet 113. In the embodiment where the outlet 113 is located on the bottom side wall of the main shell 115, when the inlet mechanism 10 is installed into the liquid storage container 20, the bottom end of the main shell 115 abuts against the bottom wall of the liquid storage container 20, and the filling liquid flows out through the notch on the bottom side wall of the main shell 115, i.e., the outlet 113. This design structure ensures that when the inlet mechanism 10 is in working condition, part of its bottom end abuts against the bottom wall of the liquid storage container 20. When a sealed container containing liquid (e.g., a water bottle 9) is connected to the inlet mechanism 10, the inlet mechanism 10 no longer moves within the liquid storage container 20 (e.g., no longer moves downwards in the vertical direction), thereby improving the stability of the connection of each part during the filling process and making it easy to operate.

[0086] The liquid level in the storage container 20 is horizontal. To ensure that the vent port 114 is quickly sealed upon contact with the liquid, the plane containing the vent port 114 is also horizontal. Specifically, the vent port 114 is formed by opening it at the bottom of the side shell 116. The side shell 116 is designed to isolate the vent chamber 1113 (described in detail later) from the second chamber 1112 (described in detail later), facilitating the arrangement of the on / off control component 12 (described in detail later) within the main shell 115.

[0087] In a specific embodiment of this utility model, a liquid inlet 112 is formed at the top of the main shell 115. The main shell 115 is recessed from the side wall at the bottom to the top to form at least one notch, which is the liquid outlet 113. When the liquid inlet mechanism 10 cooperates with the liquid storage container 20, the height difference L1 is formed by the vent port 114 and the bottom end face of the shell 11, specifically by the bottom end face of the main shell 115 and the bottom end face of the side shell 116. The bottom end face of the main shell 115 is in contact with the bottom wall of the liquid storage container 20 and the two are sealed together. Under this cooperation method, the height difference L1 between the vent port 114 and the bottom wall of the liquid storage container 20 becomes the height difference formed by the bottom end face of the main shell 115 and the bottom end face of the side shell 116. Since the height difference L1 is the main factor determining the highest filling level in the liquid storage container 20, in actual use, the highest filling level is determined according to the volume and requirements of different liquid storage containers 20. A liquid inlet mechanism 10 with the same height difference L1 and the highest filling level is designed and matched with the corresponding liquid storage container 20. Alternatively, multiple liquid inlet mechanisms 10 with different height differences L1 can be designed and a suitable liquid inlet mechanism 10 is selected to match different liquid storage containers 20. This achieves a precise correspondence between the liquid storage container 20 and the liquid inlet mechanism 10, expanding the applicability and market application prospects of the liquid inlet mechanism 10.

[0088] Among them, such as Figure 10 As shown, the top and bottom of the main shell 115 are both open. The bottom opening serves as a passage for the drive component 223 (described in detail later) to enter the second cavity 1112 and drive the on / off control component 12. The side wall at the bottom of the main shell 115 forms a U-shaped notch from bottom to top, which serves as a liquid outlet 113. The side shell 116 can be a shell fixed or integrally formed on the side of the main shell 115.

[0089] In addition, such as Figure 10As shown, the top of the main shell 115 also includes a cylindrical connector 118. Both the top and bottom of the connector 118 are open, with the top opening forming a liquid inlet 112. The inner wall of the connector 118 has threads 1181 for connecting to a sealed container supplying liquid, such as a water bottle 9. The connector 118 is compatible with most commercially available bottled water bottles, eliminating the need for a specially customized sealed container. A sealing ring 14 is provided inside the bottom of the connector 118 to ensure a tight seal between the water bottle 9 and the connector 118, preventing leakage of liquid from the water bottle 9. In some embodiments, the cavity formed inside the connector 118 is the first cavity 1111 described in detail below.

[0090] The housing 11 also includes a plurality of reinforcing plates 119, for example four, connected to the outside of the main housing 115. The reinforcing plates 119 are circumferentially spaced on the main housing 115 to share part of the force applied to the main housing 115, such as the pressure of the water bottle 9. Generally, the reinforcing plates 119 are disposed in the upper half of the main housing 115, such that when the liquid inlet mechanism 10 is installed in the liquid storage container 20, the bottom of the reinforcing plate 119 abuts against the outside of the liquid storage container 20, thereby increasing the support strength when the sealed container (e.g., the water bottle 9) is connected to the liquid inlet mechanism 10.

[0091] In some embodiments, the liquid inlet mechanism 10 further includes an on / off control component 12 movably disposed within the gas-liquid delivery chamber 111. The liquid inlet chamber includes a first chamber 1111 communicating with the liquid inlet 112 and a second chamber 1112 communicating with the liquid outlet 113. The on / off control component 12 can be driven to isolate and connect the first chamber 1111 with the second chamber 1112 and the venting chamber 1113, that is, the first chamber 1111 is isolated from the second chamber 1112 and the first chamber 1111 is isolated from the venting chamber 1113.

[0092] When the liquid inlet mechanism 10 is not in use, the on / off control component 12 is driven by other components (such as the subsequent reset component 13) to isolate the first chamber 1111 from the second chamber 1112 and the vent chamber 1113, so as to prevent liquid from entering the second chamber 1112 from the first chamber 1111 and to prevent gas from entering the first chamber 1111 from the vent chamber 1113. When the liquid inlet mechanism 10 is in use, the on / off control component 12 is driven by the drive component 223 (described in detail later) to connect the first chamber 1111 from the second chamber 1112 and the vent chamber 1113, so that gas enters the first chamber 1111 from the vent chamber 1113 and flows out from the liquid inlet 112 into the water bottle 9, exchanging the liquid in the water bottle 9, so that the liquid enters the second chamber 1112 from the first chamber 1111 and flows out from the liquid outlet 113. In practical use, the connector 118 of the liquid inlet mechanism 10 can be screwed onto the opening of the water bottle 9 first. Then, the liquid inlet mechanism 10 and the water bottle 9 can be flipped together so that the opening of the water bottle 9 is facing down before being installed into the liquid storage container 20. When it is necessary to add water to the water bottle 9, the liquid inlet mechanism 10 and the water bottle 9 can be removed from the liquid storage container 20. Then, the two can be flipped 180° together, and the connector 118 of the liquid inlet mechanism 10 can be unscrewed from the water bottle 9 to perform the corresponding operation. To achieve this simple and convenient usage, an on / off control component 12 is provided. Even if the opening of the water bottle 9 is facing down, as long as the on / off control component 12 isolates the first chamber 1111 from the second chamber 1112, and the first chamber 1111 is also isolated from the vent chamber 1113, the liquid in the water bottle 9 cannot flow out from the outlet 113.

[0093] The liquid inlet mechanism 10 also includes a resilient reset component 13, such as a spring. The two ends of the spring are respectively connected to the housing 11 and the on / off control component 12. The spring is configured to be driven by a compressive force to move the on / off control component 12, thereby connecting the first chamber 1111 with the second chamber 1112 and the venting chamber 1113, and driven by its own elastic restoring force to reset the on / off control component 12 to the isolated position between the first chamber 1111 and the second chamber 1112 and the venting chamber 1113.

[0094] When the reset component 13 is not under force and is in its natural state, the on / off control component 12 remains in the isolated position between the first chamber 1111 and the second chamber 1112 and the venting chamber 1113. Furthermore, when the force provided by other components (such as the subsequent drive component 223) to the on / off control component 12 disappears, the reset component 13 can automatically drive the on / off control component 12 to reset to the isolated position between the first chamber 1111 and the second chamber 1112 and the venting chamber 1113. Moreover, after the liquid inlet mechanism 10 is connected to the water bottle 9, as long as the liquid inlet mechanism 10 is not engaged with the liquid storage container 20, the on / off control component 12 is affected by the gravity of the liquid in the water bottle 9, further ensuring that the first chamber 1111 and the second chamber 1112 and the venting chamber 1113 remain isolated, improving the convenience of engaging the liquid inlet mechanism 10 with the water bottle 9.

[0095] In some embodiments, a liquid connection port 1171 and a gas connection port 1172 are respectively provided in the first cavity 1111. The second cavity 1112 is connected to the second cavity 1112 through the liquid connection port 1171. The venting cavity 1113 is connected to the first cavity 1111 through the gas connection port 1172. The on / off control component 12 isolates or connects the first cavity 1111 with the second cavity 1112 and the venting cavity 1113 by blocking or opening the liquid connection port 1171 and the gas connection port 1172. The housing 11 also includes a partition 117 disposed in the gas-liquid conveying chamber 111. The partition 117 separates the first chamber 1111 from the second chamber 1112 and the venting chamber 1113. The liquid connection port 1171 and the gas connection port 1172 are both formed on the partition 117. The first chamber 1111 is connected to the second chamber 1112 and the venting chamber 1113 through the liquid connection port 1171 and the gas connection port 1172, respectively.

[0096] When the first chamber 1111 and the second chamber 1112 are connected through the liquid connection port 1171, liquid enters the second chamber 1112 after passing through the liquid connection port 1171 from the first chamber 1111. At the same time, the first chamber 1111 and the venting chamber 1113 are connected through the air connection port 1172, and gas enters the first chamber 1111 after passing through the air connection port 1172 from the venting chamber 1113. Therefore, as long as the liquid connection port 1171 and the air connection port 1172 are blocked, liquid cannot flow between the first chamber 1111 and the second chamber 1112, and gas cannot flow between the first chamber 1111 and the venting chamber 1113. The partition 117 serves two purposes: firstly, it supports the on / off control component 12 when it blocks the liquid connection port 1171 and the gas connection port 1172; secondly, as long as the on / off control component 12 can cover the partition 117, it can simultaneously block the liquid connection port 1171 and the gas connection port 1172. This makes the method by which the on / off control component 12 isolates the first chamber 1111 from the second chamber 1112 and the vent chamber 1113 simpler and more effective, thereby simplifying the structure of the on / off control component 12. The partition 117 and the housing 11 can be an integral structure to increase the strength of the partition 117. In some embodiments, the on / off control component 12 includes a blocking part 121 located in the first cavity 1111 and a transmission part 122 extending from the first cavity 1111 to the second cavity 1112. The transmission part 122 is connected to the blocking part 121. By driving the transmission part 122 to move in the second cavity 1112, the blocking part 121 moves in the first cavity 1111. A water passage for liquid flow is formed on the transmission part 122.

[0097] The sealing part 121 can be driven to slide (move) inside the housing 11. The sliding (moving) direction is towards the partition 117 and away from the partition 117. When it slides towards the partition 117 to cover the partition 117, the liquid connection port 1171 and the gas connection port 1172 are blocked. When it slides away from the partition 117, the blockage of the liquid connection port 1171 and the gas connection port 1172 is released, and the gas and liquid flow is realized.

[0098] Specifically, the sealing part 121 includes a plug 1211 and an annular sealing gasket 1212 sleeved on the plug 1211. The plug 1211 passes through the liquid connection port 1171 and is slidably disposed relative to the liquid connection port 1171. The radial direction of the sealing gasket 1212 is... Figure 6 The transverse dimension of the partition 117 is greater than or equal to the radial dimension of the partition 117. Figure 6The lateral dimension (in the middle). When the sealing part 121 seals the liquid connection port 1171 and the gas connection port 1172, the lower part of the plug 1211 is located inside the liquid connection port 1171 and seals against the inner wall of the liquid connection port 1171. The sealing gasket 1212 covers the partition plate 117, sealing the gas connection port 1172. When the sealing part 121 releases the seal on the liquid connection port 1171 and the gas connection port 1172, the plug 1211 is located outside the liquid connection port 1171, and the sealing gasket 1212 is separated from the partition plate 117. At this time, gaps are formed between the sealing gasket 1212, the partition plate 117, and the inner wall of the main shell 115, allowing liquid and gas to flow through these two gaps. It should be noted that the radial dimension (in the middle) of the sealing gasket 1212 is... Figure 6 The lateral dimension is smaller than the inner diameter of the top of the main shell 115. Figure 6 The transverse dimension (in the middle) is designed to ensure the flow of liquid and gas in the gap between the outer periphery of the sealing gasket 1212 and the inner wall of the main housing 115, specifically as follows: Figure 17 The direction indicated by the middle arrow.

[0099] like Figures 13 to 15 As shown, a groove 12111 is formed around the circumference of the plug 1211. The inner ring of the annular sealing gasket 1212 is embedded in the groove 12111 and connected to the plug 1211 to increase the stability of the connection. Both the plug 1211 and the sealing gasket 1212 can be made of silicone material. The transmission part 122 is used to transmit the force applied by other components (such as the reset part 13 or the subsequent drive part 223) to the sealing part 121, so as to drive the sealing part 121 to slide inside the main housing 115. The transmission part 122 is axially ( Figure 6 The transmission part 122 has a certain length in the longitudinal direction so that the bottom end of the transmission part 122 is as close as possible to the bottom end of the main housing 115. In this way, the drive component 223 (described in detail later) can extend into the interior of the main housing 115 from the bottom opening of the main housing 115 to drive the transmission part 122 to move, and the axial direction of the drive component 223 ( Figure 17 The longitudinal dimension of the transmission unit 122 does not need to be too large, so that the transmission unit 122 can be moved by a shorter drive component 223. The design of the transmission unit 122 must take into account the flow of liquid. Therefore, a water passage is provided on the transmission unit 122. After the transmission unit 122 drives the sealing part 121 to move, the liquid passes through the liquid inlet 1171 and enters the water passage, and flows through the water passage to the liquid outlet 113.

[0100] In some embodiments, the reset component 13 can be a spring disposed in the second cavity 1112. One end of the spring is a fixed end and the other end is a movable end. The movable end is connected to the transmission part 122, and the fixed end is connected to the housing 11 in the second cavity 1112. The fixed end is disposed in the second cavity 1112 on the side close to the blocking part 121, and the movable end is disposed in the second cavity 1112 on the side away from the blocking part 121. By moving the movable end toward the fixed end to compress the spring, the blocking part 121 is driven to move away from the liquid connection port 1171.

[0101] like Figure 11 As shown, the transmission unit 122 includes a water column 1221 that is movably disposed relative to the liquid connection port 1171 and a limiting plate 1222 located in the second cavity 1112. The size of the limiting plate 1222 and the sealing part 121 are both larger than the liquid connection port 1171, so that the movement range of the water column 1221 is limited by the two together.

[0102] In some embodiments, the limiting plate 1222 is configured such that the shape and size of its outer edge are consistent with the cross-section of the second cavity 1112, and a water passage hole 12221 is provided on the limiting plate 1222, through which liquid in the second cavity 1112 can flow. The fact that the shape and size of the outer edge of the limiting plate 1222 are consistent with the cross-section of the second cavity 1112 ensures that when the water column 1221 moves within the gas-liquid conveying cavity 111, the outer edge of the limiting plate 1222 remains in close contact with the inner wall of the second cavity 1112, thereby guiding the movement of the water column 1221, increasing the stability of the on / off control component 12 within the housing 11, and ensuring the stability of the liquid flow.

[0103] In some embodiments, an inflow gap is provided between the side of the water column 1221 and the liquid inlet 1171, so that the liquid in the first chamber 1111 enters the second chamber 1112 through the inflow gap.

[0104] In some embodiments, a water channel 12211 is formed on the side of the water column 1221, and the liquid flowing into the second cavity 1112 through the inflow gap flows through the water channel 12211.

[0105] The water column 1221 can slide relative to the liquid connection port 1171 under the drive of the driving component 223 (described in detail later). To prevent the water column 1221 from sliding out of the main housing 115, a sealing gasket 1212 and a limiting plate 1222 are respectively provided at the top and bottom of the water column 1221, which serve to restrict the water column 1221 from detaching from the liquid connection port 1171. Figure 6The directions shown are described as follows: the downward limit position of the water column 1221 is when the sealing gasket 1212 contacts the upper surface of the partition 117; when the liquid inlet mechanism 10 does not include the reset component 13, the upward limit position of the water column 1221 is when the limiting plate 1222 contacts the lower surface of the partition 117.

[0106] When the sealing part 121 blocks the liquid connection port 1171 and the gas connection port 1172, the water column 1221 is located in the second cavity 1112. When the driving component 223 extends into the second cavity 1112 and pushes up the transmission part 122, the water column 1221 is forced upward. Figure 6 The liquid slides from the top of the first chamber 1111 to the top. The first chamber 1111 and the second chamber 1112 are connected by a water channel 12211. The liquid enters the water channel 12211 from the first chamber 1111 and passes through the liquid inlet 1171 along the water channel 12211. It then continues to flow along the water channel 12211 until it passes through the water hole 12221 on the limiting plate 1222 and flows out from the liquid outlet 113.

[0107] by Figure 6 Described in the indicated orientation, when the transmission unit 122 is driven by the drive component 223 (described in detail later), the limiting plate 1222 moves upward, the distance between it and the partition 117 decreases, and the spring is compressed. When the driving force on the transmission unit 122 disappears, the spring extends due to its own elasticity, pulling the limiting plate 1222 downward, increasing the distance between the limiting plate 1222 and the partition 117 until the sealing gasket 1212 contacts the partition 117. The partition 117 blocks the sealing gasket 1212 from moving further downward, thereby maintaining the sealing gasket 1212 in the position of sealing the liquid connection port 1171 and the gas connection port 1172.

[0108] Specifically, the spring is sleeved on the outer periphery of the water column 1221. The fixed end (top) of the spring is connected to the lower surface of the partition 117, and the movable end (bottom) of the spring is connected to the side of the water column 1221 near the limiting plate 1222 or to the limiting plate 1222. Figure 6 In the states shown, the spring can be in its original length or in a slightly compressed state. Additionally, as... Figure 13 and Figure 14 As shown, when the movable end of the spring is connected to the upper surface of the limiting plate 1222, the upper surface of the limiting plate 1222 is provided with a mounting protrusion 12222 for the bottom end of the spring to be connected, so as to fix the bottom end of the spring.

[0109] The primary function of the transmission unit 122 is to transmit the force of the drive component 223 to the sealing unit 121. Based on this, and considering the issue of liquid flow, the following two schemes are designed to form a water passage for liquid flow:

[0110] Option 1:

[0111] An inflow gap is provided between the side of the water column 1221 and the liquid inlet 1171, allowing the liquid in the first chamber 1111 to enter the second chamber 1112 through the inflow gap. An outflow gap is provided between the outer edge of the limiting plate 1222 and the inner wall surface of the second chamber 1112, allowing the liquid in the second chamber 1112 to flow through the outflow gap and then out through the liquid outlet 113.

[0112] Option 2:

[0113] An inflow gap is provided between the side of the water column 1221 and the liquid inlet 1171, so that the liquid in the first chamber 1111 enters the second chamber 1112 through the inflow gap. A water channel 12211 is provided on the water column 1221, and a water hole 12221 is provided on the limiting plate 1222. The liquid flows from the inflow gap through the water channel 12211 and the water hole 12221, and then flows out from the liquid outlet 113. The limiting plate 1222 is configured such that the shape and size of its outer edge are consistent with the cross-section of the second cavity 1112. The limiting plate 1222 has a water passage hole 12221 communicating with the second cavity 1112. A water passage groove 12211 communicating with the water passage hole 12221 is formed on the water passage column 1221. The water passage hole 12221 and the water passage groove 12211 form a water passage channel. When the on / off control component 12 is driven to isolate the first cavity 1111 and the second cavity 1112, the water passage column 1221 is located in the second cavity 1112. When the on / off control component 12 is driven to connect the first cavity 1111 and the second cavity 1112, the water passage column 1221 is at least partially located in the first cavity 1111, so that the water passage groove 12211 is connected to the first cavity 1111.

[0114] Specifically, the water column 1221 has a cylindrical structure, and multiple water channels 12211 are evenly spaced along the circumference of the water column 1221, for example, four. Figures 11 to 15 As shown, the water channel 12211 is a fan-shaped columnar channel. The limiting plate 1222 is a circular plate structure. Multiple water holes 12221 are evenly formed on the limiting plate 1222 along the circumference, for example, four. The water holes 12221 are fan-shaped holes, and their size and dimensions are adapted to the size and dimensions of the water channel 12211. Each water hole 12221 is aligned with each water channel 12211, so that a water channel 12211 and a corresponding water hole 12221 together form a straight water flow channel.

[0115] Reference Figures 16 to 31 As shown, the present invention also provides a humidification device 1, including a liquid storage container 20 and the above-mentioned liquid inlet mechanism 10, wherein the liquid inlet mechanism 10 is detachably connected to the liquid storage container 20.

[0116] The liquid inlet mechanism 10 of the humidification device 1 has all the technical solutions and effects of the above-mentioned liquid inlet mechanism 10, which will not be repeated here.

[0117] In use, the liquid inlet mechanism 10 is first screwed onto the water bottle 9 via the thread 1181, and then installed together with the water bottle 9 onto the liquid storage container 20. When it is necessary to add water to the water bottle 9, the liquid inlet mechanism 10 is removed from the liquid storage container 20 together with the water bottle 9, making the operation convenient.

[0118] In some embodiments, the liquid storage container 20 includes a main body 21 and a mounting part 22. The main body 21 has a main cavity 211, and the mounting part 22 has a mounting cavity 221 communicating with the main cavity 211. The liquid inlet mechanism 10 is sealed and installed in the mounting hole 228 so that the gas-liquid delivery cavity 111 communicates with the mounting cavity 221. The mounting part 22 has a mounting hole 228, and the inner wall of the mounting hole 228 is formed to fit the outer wall of the housing 11 of the liquid inlet mechanism 10, so that the liquid inlet mechanism 10 can be snapped into the mounting hole 228.

[0119] A drive component 223 is provided inside the mounting cavity 221. When the liquid inlet mechanism 10 is installed on the mounting part 22, the drive component 223 connects the mounting cavity 221 with the liquid inlet 112. When the liquid inlet mechanism 10 is installed on the mounting part 22, the drive component 223 contacts the on / off control component 12 and compresses the spring, so that the on / off control component 12 connects the first cavity 1111 with the second cavity 1112 and the venting cavity 1113.

[0120] In some embodiments, the drive component 223 includes a top post 2232. When the liquid inlet mechanism 10 is installed on the mounting part 22, the top post 2232 contacts the limiting plate 1222 or the water column 1221 and compresses the reset component 13 (e.g., a spring), so that the sealing gasket 1212 of the sealing part 121 exposes the liquid connection port 1171 and the gas connection port 1172, so that the liquid enters the liquid storage container 20 sequentially through the first chamber 1111 and the second chamber 1112.

[0121] In some embodiments, the drive component 223 includes a top post 2232 and a sealing element 2231 connected to the top post 2232. The drive component 223 is elastically disposed in the mounting cavity 221 by a spring. The drive component 223 is configured such that, in its natural state within the mounting portion 22, the sealing element 2231 seals the opening of the mounting cavity 221 that communicates with the liquid inlet mechanism 10.

[0122] The top post 2232 and the mounting hole 228 are coaxially arranged, such as Figure 17As shown, when the liquid inlet mechanism 10 is inserted into the mounting hole 228, the top column 2232 enters the second cavity 1112 from the opening formed by the bottom opening of the housing 11, and pushes up the limiting plate 1222, so that the on / off control component 12 moves upward, connecting the first cavity 1111 and the second cavity 1112, as well as the first cavity 1111 and the venting cavity 1113, so that the water bottle 9 and the liquid storage container 20 exchange gas and liquid, and the liquid in the water bottle 9 begins to be filled into the liquid storage container 20.

[0123] like Figure 21 As shown, the liquid storage container 20 also includes a protective cover 224 covering the mounting hole 228. When the liquid inlet mechanism 10 is not installed at the mounting hole 228, the mounting hole 228 is blocked by the protective cover 224. On the one hand, the protective cover 224 isolates the mounting cavity 221 from the outside, preventing foreign objects from entering the liquid storage container 20 and maintaining the cleanliness of the liquid storage container 20. On the other hand, when the humidification device 1 is applied to the ventilation therapy device, if it is not necessary to output humidified gas, the liquid storage container 20 can only serve as an inlet and outlet connection in the ventilation therapy device, allowing the ventilation therapy device to switch to a non-humidified ventilation state. In the embodiment where the drive component 223 is elastically set in the mounting part 22, the protective cover 224 can be replaced by a sealing element 2231. When the liquid inlet mechanism 10 is not inserted into the mounting part 22, the sealing element 2231 automatically moves to the opening position of the mounting cavity 221 communicating with the liquid inlet mechanism 10 under the elastic restoring force of the spring, thereby playing the role of dustproof sealing and preventing the liquid in the liquid storage container 20 from tilting and leaking out.

[0124] Specifically, such as Figure 24 As shown, the liquid storage container 20 includes a lower shell 24. The main body 21 of the lower shell 24 is a rectangular, open-top shell structure, while the mounting portion 22 is an arched, open-top shell structure. A second liquid inlet 2110 is formed between the main cavity 211 and the mounting cavity 221, allowing liquid entering the mounting cavity 221 to enter the main cavity 211 through the second liquid inlet 2110. Figure 23 As shown, the liquid storage container 20 also includes a mounting shell 25, which is connected to the lower shell 24. The main body 21 of the mounting shell 25 has a rectangular frame-like shell structure, while the mounting part 22 has an arched plate-like shell structure. A heating plate 217 is also installed inside the main cavity 211 to heat the liquid inside, causing it to vaporize and be output. Figure 21 As shown, the liquid storage container 20 also includes an upper shell 23, which is a rectangular plate-shaped shell structure that covers the upper part of the main body 21 in the mounting shell 25. The side of the upper shell 23 extends with a mounting buckle 2151. The side wall of the mounting part 22 in the lower shell 24 is formed with a connecting buckle 2211 for connecting the mounting buckle 2151. The mounting buckle 2151 and the connecting buckle 2211 are rotatably connected, so that the upper shell 23 can rotate relative to the lower shell 24 to expose the main cavity 211.

[0125] like Figure 20 As shown, a first sealing silicone 218 is provided between the upper shell 23 and the mounting shell 25 to form a closed main cavity 211; a third sealing silicone 227 is provided between the mounting shell 25 and the mounting part 22 of the lower shell 24 to form a closed mounting cavity 221 after the liquid inlet mechanism 10 is inserted into the mounting hole 228; the heating plate 217 is embedded in the lower shell 24, and a second sealing silicone 219 is provided between the two to prevent liquid in the main cavity 211 from entering the heating plate 217.

[0126] In some embodiments, the mounting part 22 further includes a water storage structure disposed in the mounting cavity 221. When the liquid inlet mechanism 10 is installed on the mounting part 22, the liquid outlet 113 and the vent port 114 are both located inside the water storage structure. When the water storage structure is configured such that the liquid storage container 20 is rotated 90° from the working position in at least one direction, the liquid outlet 113 and the vent port 114 are both located below or flush with the liquid surface inside the water storage structure. The water storage structure includes multiple annular plates 222 of different diameters disposed in the mounting cavity 221. The annular plates 222 are arranged in a ring-shaped manner with their diameters increasing from small to large, so as to form an annular flow channel 229 between adjacent annular plates 222. Each annular plate 222 has a first liquid inlet 2221 that communicates with the annular flow channel 229. The first liquid inlets 2221 of two adjacent annular plates 222 are arranged in a staggered manner around the circumference. The surrounding area of ​​the innermost annular plate 222 is formed as a flow-limiting cavity 2210 for communicating with the gas-liquid transport cavity 111. The liquid outlet 113 and the venting port 114 are both located in the flow-limiting cavity 2210.

[0127] A height difference L1 is formed between the venting port 114 and the bottom of the flow-limiting cavity 2210, which constitutes the maximum filling level of the liquid in the storage container 20. In actual use, the humidification device 1 may tilt due to external forces. If the liquid in the flow-limiting cavity 2210 flows out due to the tilt, the sealing effect of the liquid on the venting port 114 will disappear, and gas will continue to enter the venting port 114. This gas passes through the gas-liquid delivery cavity 111 and enters the water bottle 9 through the liquid inlet 112. The liquid in the water bottle 9 will continue to flow into the storage container 20, gradually increasing the liquid level. It may then be discharged from the air outlet 213 (described in detail later). When the humidification device 1 is used in a ventilation therapy device, the liquid will enter the breathing tubing from the air outlet 213 and then into the breathing mask or nasal plug, posing a safety hazard. Therefore, ensuring that the liquid level in the storage container 20 does not rise when the humidification device 1 is tilted is an important aspect to consider in addressing safety issues.

[0128] In this invention, multiple annular plates 222 are arranged inside the mounting cavity 221. After the liquid level in the storage container 20 reaches its maximum filling level, regardless of whether the humidification device 1 is tilted at an angle of 90° or less in any direction, the mutual shielding effect between the annular plates 222 ensures that the flow-limiting cavity 2210 formed by the innermost annular plate 222 is always filled with liquid. This ensures that the vent port 114 of the liquid inlet mechanism 10 located in the flow-limiting cavity 2210 is always blocked by liquid, and the liquid in the water bottle 9 no longer continues to be poured into the storage container 20. The liquid level in the storage container 20 is described below according to different tilt directions: First, as Figure 26 As shown, the dashed line represents the liquid level in the mounting cavity 221. When the liquid storage container 20 tilts forward, the direction of this tilt is... Figure 25 In the upper middle direction, the liquid inside the flow-limiting cavity 2210 is blocked by the inner wall of the innermost annular plate 222 and cannot flow out of the flow-limiting cavity 2210; secondly, as Figure 27 As shown, the dashed line represents the liquid level in the mounting cavity 221. When the liquid storage container 20 tilts backward, the direction of this tilt is... Figure 25 In the downward direction, the liquid in the flow-limiting cavity 2210 is blocked by the inner wall of the second layer (the innermost annular plate 222 is the first layer, and the adjacent annular plate 222 is the second layer), and cannot flow out of the flow-limiting cavity 2210; third, as Figure 28 As shown, the dashed line represents the liquid level in the mounting cavity 221. When the liquid storage container 20 tilts to the left, the direction of this leftward tilt is... Figure 25 In the left direction, the liquid in the flow-limiting cavity 2210 is blocked by the inner wall of the innermost annular plate 222 and cannot flow out of the flow-limiting cavity 2210; fourth, as Figure 29 As shown, the dashed line represents the liquid level in the mounting cavity 221. When the liquid storage container 20 tilts to the right, the direction of this rightward tilt is... Figure 25 In the right direction, the liquid in the flow-limiting cavity 2210 is blocked by the inner wall of the innermost annular plate 222 and cannot flow out of the flow-limiting cavity 2210. Therefore, no matter which direction the humidification device 1 is tilted, the liquid in the flow-limiting cavity 2210 will not flow out, ensuring the continuous sealing of the vent port 114. Furthermore, to prevent the liquid in the flow-limiting cavity 2210 from flowing out while allowing the liquid in the water bottle 9 to flow into the main cavity 211, first liquid inlets 2221 are provided on the annular plates 222 of different layers, arranged in a staggered manner around each other. Specifically, there can be two annular plates 222.

[0129] With the above settings, the maximum filling level of the liquid storage container 20 can be low enough, that is, the liquid storage container 20 does not need to contain too much liquid. When the humidification device 1 is applied to the ventilation therapy equipment, the design of the air inlet and outlet does not need to take the liquid level into account, thereby improving the selectivity of the air path and related components, thus avoiding the complex design of the air path and related components, and effectively reducing the design cost and processing cost.

[0130] In addition, such as Figure 18 and Figure 22 As shown, the bottom wall of the annular flow channel 229 is inclined from high to low towards the first liquid inlet 2221 in accordance with the flow direction of the liquid during filling. The upper dashed line in the figure represents the inclination direction of the bottom wall of the annular flow channel 229, and the arrow above the dashed line represents the flow direction of the liquid in the annular flow channel 229. The bottom wall of the mounting cavity 221 is inclined from high to low towards the second liquid inlet 2110 in accordance with the flow direction of the liquid during filling. The lower dashed line in the figure represents the inclination direction of the bottom wall of the mounting cavity 221, and the arrow below the dashed line represents the flow direction of the liquid in the mounting cavity 221. This allows the liquid in the inner annular flow channel 229 to flow quickly to the outer annular flow channel 229, the liquid in the outer annular flow channel 229 to flow quickly to the mounting cavity 221, and the liquid in the mounting cavity 221 to flow quickly to the main cavity 211, achieving smooth liquid discharge.

[0131] In some embodiments, the first liquid inlet 2221 of adjacent annular plates 222 has a circumferential misalignment angle α of 90° to 180°.

[0132] Only within the range of the misalignment angle α can the outflow of liquid from the flow-limiting cavity 2210 be prevented. To accommodate all tilting directions and improve the tilting tolerance, the misalignment angle α is preferably 135°±5°.

[0133] In some embodiments, the liquid storage container 20 has an inlet and outlet port communicating with the main cavity 211, and a buffer cover 214 extending into the main cavity 211 is provided in the liquid storage container 20 corresponding to the inlet and outlet port. The side of the buffer cover 214 is provided with a buffer hole 2141 communicating with the inlet and outlet port and the main cavity 211.

[0134] The air inlet and outlet include an air inlet 212 and an air outlet 213. Two buffer covers 214 are provided, which are respectively covered on the air inlet 212 and the air outlet 213.

[0135] When the humidification device 1 is applied to a ventilation therapy device, the air inlet 212 is used to introduce gas, and the air outlet 213 is used to discharge the humidified gas into the breathing tube. When gas enters the air inlet 212, if the gas direction is perpendicular to the bottom wall of the liquid storage container 20, it will cause the liquid in the liquid storage container 20 to splash, resulting in severe liquid fluctuations in the liquid storage container 20. This will cause the air outlet 114 of the liquid inlet mechanism 10 to be affected by the fluctuating liquid level and will not be effectively blocked when the liquid storage container 20 reaches the maximum filling level, thereby weakening the automatic liquid level control function of the liquid inlet mechanism 10. If the liquid level in the liquid storage container 20 is low, the impact of the gas may push the liquid on the heating plate 217 to the surroundings, reducing the liquid above the heating plate 217 and weakening the humidification effect of the liquid. Therefore, a buffer cover 214 is installed at the air inlet 212, so that the gas first impacts the buffer cover 214 from the air inlet 212, slows down and disperses evenly, and then enters the liquid storage container 20 through each buffer hole 2141. This design not only reduces the impact force of the gas, but also increases the diffusion area of ​​the gas and the degree of mixing between the gas and the vaporized liquid. When the gas is discharged from the air outlet 213, if the gas flow rate is too high, it may carry the liquid in the liquid storage container 20 out of the air outlet 213, causing the liquid to be sprayed out from the breathing mask or nasal plug. Therefore, a buffer cover 214 is installed at the air outlet 213, so that the gas is first blocked by the buffer cover 214 to reduce the flow rate, and then flows along the bottom surface of the buffer cover 214 ( Figure 31 The gas is dispersed after being diverted by the upper surface of the buffer cover 214, which increases the mixing degree of gas and vaporized liquid, improves the utilization rate of vaporized liquid, and enables a small amount of vaporized liquid in the liquid storage container 20 to meet the usage requirements. In other words, even if the amount of vaporized liquid in the liquid storage container 20 is small, the gas can mix with as much vaporized liquid as possible and be discharged from the gas outlet 213, thereby reducing the energy consumption of the heating plate 217.

[0136] The third aspect of this utility model provides a ventilation therapy device, including a main unit 2 and the aforementioned humidification device 1.

[0137] The humidification device 1 of the ventilation therapy equipment has all the technical solutions and effects of the aforementioned humidification device 1, which will not be repeated here.

[0138] The main unit 2 is configured to pressurize breathable gas and deliver the pressurized gas to the humidification device 1, which then humidifies the gas before outputting it. The main unit 2 and the humidification device 1 can be coupled in the following three ways: First, as... Figure 32 and Figure 33 As shown, the main unit 2 and the humidification device 1 are assembled in a horizontal pull-out manner; secondly, as... Figure 34 and Figure 35 As shown, the main unit 2 and the humidification device 1 are assembled by inserting them vertically; third, as... Figure 36As shown, the main unit 2 is assembled to one side of the humidification device 1. Of course, the assembly method of the main unit 2 and the humidification device 1 is not limited to the three assembly methods shown in this utility model. The first and third methods are left-right directional connection methods, and the second method is also a left-right directional connection method.

[0139] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A liquid inlet mechanism for a liquid storage container, characterized in that, The liquid inlet mechanism (10) includes a housing (11) having a gas-liquid conveying chamber (111). The housing (11) has an inlet (112), an outlet (113), and a vent (114) respectively connected to the gas-liquid conveying chamber (111) to allow liquid introduced from the inlet (112) to be filled into the liquid storage container (20) through the outlet (113), and to stop filling when the liquid in the liquid storage container (20) blocks the vent (114).

2. The liquid inlet mechanism according to claim 1, characterized in that, The gas-liquid transport chamber (111) includes a liquid inlet chamber and a venting chamber (1113). The liquid inlet chamber includes the liquid inlet (112) and the liquid outlet (113). The venting chamber (1113) includes the venting port (114) and the air connection port (1172). When the liquid inlet mechanism (10) is installed on the liquid storage container (20), the side closer to the liquid in the liquid storage container (20) is set as the venting port (114). The air connection port (1172) is connected to the liquid inlet (112).

3. The liquid inlet mechanism according to claim 2, characterized in that, The housing (11) includes a main housing (115) and a side housing (116) disposed on one side of the main housing (115). The main housing (115) forms the liquid inlet chamber, and the side housing (116) forms the venting chamber (1113).

4. The liquid inlet mechanism according to claim 3, characterized in that, The liquid inlet (112) is formed at the top of the main shell (115), and at least one notch is formed by the side wall of the bottom end of the main shell (115) in the direction of the top end. The notch is set as the liquid outlet (113).

5. The liquid inlet mechanism according to claim 2, characterized in that, The liquid inlet mechanism (10) further includes an on / off control component (12) movably disposed within the gas-liquid delivery chamber (111). The liquid inlet chamber includes a first chamber (1111) communicating with the liquid inlet (112) and a second chamber (1112) communicating with the liquid outlet (113). The on / off control component (12) can be driven to isolate and connect the first chamber (1111) with the second chamber (1112) and the ventilation chamber (1113).

6. The liquid inlet mechanism according to claim 5, characterized in that, The liquid inlet mechanism (10) further includes a resilient reset component (13), which is connected to the housing (11) and the on / off control component (12) respectively. The reset component (13) is configured to be driven by a compressive force to move the on / off control component (12), so that the first cavity (1111) communicates with the second cavity (1112) and the venting cavity (1113), and drives the on / off control component (12) to reset to the isolated position between the first cavity (1111) and the second cavity (1112) and the venting cavity (1113) through its own elastic force.

7. The liquid inlet mechanism according to claim 6, characterized in that, The first cavity (1111) is provided with a liquid connection port (1171) and a gas connection port (1172). The second cavity (1112) is connected to the first cavity (1111) through the liquid connection port (1171). The venting cavity (1113) is connected to the first cavity (1111) through the gas connection port (1172). The on / off control component (12) isolates or connects the first cavity (1111) with the second cavity (1112) and the venting cavity (1113) by blocking or opening the liquid connection port (1171) and the gas connection port (1172).

8. The liquid inlet mechanism according to claim 7, characterized in that, A partition (117) is provided at one end of the first cavity (1111) near the second cavity (1112) and the venting cavity (1113), and the liquid connection port (1171) and the gas connection port (1172) are both formed on the partition (117).

9. The liquid inlet mechanism according to claim 7, characterized in that, The on / off control component (12) includes a blocking part (121) located in the first cavity (1111) and a transmission part (122) extending from the first cavity (1111) to the second cavity (1112). The transmission part (122) is connected to the blocking part (121). By driving the transmission part (122) to move in the second cavity (1112), the blocking part (121) moves in the first cavity (1111).

10. The liquid inlet mechanism according to claim 9, characterized in that, The transmission part (122) includes a water column (1221) movable relative to the liquid inlet (1171) and a limiting plate (1222) located in the second cavity (1112). The size of the limiting plate (1222) and the sealing part (121) are both larger than the liquid inlet (1171) so that the movement range of the water column (1221) is limited by both.

11. The liquid inlet mechanism according to claim 10, characterized in that, The limiting plate (1222) is configured such that the shape and size of its outer edge are consistent with the cross-section of the second cavity (1112). A water passage hole (12221) is provided on the limiting plate (1222), through which the liquid in the second cavity (1112) can flow.

12. The liquid inlet mechanism according to claim 10, characterized in that, An inflow gap is provided between the side of the water column (1221) and the liquid inlet (1171), so that the liquid in the first chamber (1111) enters the second chamber (1112) through the inflow gap.

13. The liquid inlet mechanism according to claim 12, characterized in that, A water channel (12211) is formed on the side of the water column (1221), and the liquid that flows into the second cavity (1112) through the inflow gap flows through the water channel (12211).

14. The liquid inlet mechanism according to claim 10, characterized in that, One end of the reset component (13) is a fixed end and the other end is a movable end. The movable end is connected to the transmission part (122), and the fixed end is connected to the housing (11) inside the second cavity (1112). The fixed end is located on the side of the second cavity (1112) close to the blocking part (121), and the movable end is located on the side of the second cavity (1112) away from the blocking part (121). By moving the movable end toward the fixed end, the reset component (13) is compressed, and the blocking part (121) is driven to move away from the liquid inlet (1171).

15. The liquid inlet mechanism according to claim 14, characterized in that, The reset component (13) is sleeved on the outside of the water column (1221), and the movable end is connected to the side of the water column (1221) near the limiting plate (1222), or connected to the limiting plate (1222).

16. A humidification device, characterized in that, It includes a liquid storage container (20) and a liquid inlet mechanism (10) according to any one of claims 1 to 15, the liquid inlet mechanism (10) being detachably connected to the liquid storage container (20).

17. A humidification device, characterized in that, It includes a liquid storage container (20) and a liquid inlet mechanism (10) according to any one of claims 6 to 15, the liquid inlet mechanism (10) being detachably connected to the liquid storage container (20).

18. The humidification device according to claim 17, characterized in that, The liquid storage container (20) includes a main body (21) and a mounting part (22). The main body (21) has a main cavity (211), and the mounting part (22) has a mounting cavity (221) communicating with the main cavity (211). The liquid inlet mechanism (10) is sealed and installed on the mounting part (22) so that the gas-liquid delivery cavity (111) communicates with the mounting cavity (221).

19. The humidification device according to claim 18, characterized in that, A driving component (223) is provided in the mounting cavity (221). When the liquid inlet mechanism (10) is installed on the mounting part (22), the driving component (223) makes the mounting cavity (221) communicate with the liquid inlet (112).

20. The humidification device according to claim 19, characterized in that, The mounting part (22) also includes a water storage structure disposed in the mounting cavity (221). When the liquid inlet mechanism (10) is installed on the mounting part (22), the liquid outlet (113) and the vent (114) are both located in the water storage structure. When the liquid storage container (20) is rotated 90° from the working position in at least one direction, the liquid outlet (113) and the vent (114) are both located below or flush with the liquid surface in the water storage structure.

21. The humidification device according to claim 20, characterized in that, The water storage structure includes multiple annular plates (222) of different diameters. The annular plates (222) are arranged in a ring-shaped manner with their diameters increasing from small to large, so as to form an annular flow channel (229) between adjacent annular plates (222). Each annular plate (222) has a first liquid inlet (2221) connected to the annular flow channel (229). The first liquid inlets (2221) of two adjacent annular plates (222) are arranged in a staggered manner around the circumference. The surrounding area of ​​the innermost annular plate (222) is formed as a flow-limiting cavity (2210) for connecting the gas-liquid transport cavity (111). The liquid outlet (113) and the air vent (114) are both located in the flow-limiting cavity (2210).

22. The humidification device according to claim 21, characterized in that, The first liquid inlet (2221) of the adjacent annular plate (222) has a circumferential misalignment angle α of 90° to 180°.

23. The humidification device according to claim 21, characterized in that, The bottom wall of the annular flow channel (229) is designed to slope from high to low towards the first liquid inlet (2221) in accordance with the flow direction during liquid filling.

24. The humidification device according to claim 18, characterized in that, The liquid storage container (20) has an inlet and outlet port connected to the main cavity (211). A buffer cover (214) extending into the main cavity (211) is provided inside the liquid storage container (20) corresponding to the inlet and outlet port. A buffer hole (2141) is provided on the side of the buffer cover (214) to connect the inlet and outlet port with the main cavity (211).

25. The humidification device according to claim 21, characterized in that, The flow-limiting cavity (2210) has a drive component (223) protruding from its bottom wall. The drive component (223) is configured to contact the on / off control component (12) and compress the reset component (13) when the liquid inlet mechanism (10) is installed on the mounting part (22), so that the on / off control component (12) connects the first cavity (1111) with the second cavity (1112) and the venting cavity (1113).

26. The humidification device according to claim 25, characterized in that, The drive component (223) includes a top post (2232) and a sealing element (2231) connected to the top post (2232). The drive component (223) is elastically connected to the flow-limiting cavity (2210) so that, in its natural state, the sealing element (2231) seals the opening of the mounting cavity (221) that communicates with the liquid inlet mechanism (10).

27. A ventilation therapy device, characterized in that, It includes a main unit (2) and a humidification device (1) according to any one of claims 16 to 26.

28. The ventilation therapy device according to claim 27, characterized in that, The host (2) is configured to pressurize breathable gas and deliver the pressurized gas to the humidification device (1), which humidifies the gas and outputs it; wherein the host (2) and the humidification device (1) are connected in a vertical direction, or the host (2) and the humidification device (1) are connected in a horizontal direction.

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