Humidifying tank for breathing machine

Abstract

The humidifying tank comprises a tank body with a water storage cavity and a cover body, the tank body is provided with a top wall, a water injection opening is formed in the top wall, and the cover body can cover the water injection opening; the cover body is provided with an air outlet, the humidifying tank further comprises an air outlet pipe in butt joint communication with the air outlet, and the air outlet pipe extends in a bent mode and is rotationally connected with the cover body. The air outlet pipe is directly and rotatably connected with the cover body of the humidifying tank, the whole humidifying tank in which the air outlet pipe is inserted can be assembled with the main machine of the breathing machine, and the air outlet pipe does not need to be inserted after the humidifying tank is assembled, so that the assembling and disassembling steps of the humidifying tank are simplified, the assembling and disassembling times of the air outlet pipe are reduced to a certain extent, and the assembling and disassembling efficiency is improved. And the connection stability and the sealing performance of the air outlet pipe are ensured. In addition, the air outlet pipe is connected to the cover body and is kept in butt joint with the air outlet of the humidifying tank, so that the risk that internal water leaks from the air outlet due to shaking of the humidifying tank is avoided, the cleaning burden of a user is reduced, and water is prevented from being splashed into the main machine.

Description

Technical Field

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

[0002] The humidifier tank (water box) is one of the important components of the ventilator. The humidifier tank contains a certain amount of water and is connected to the air outlet of the ventilator main unit. The air that enters the humidifier tank after being pressurized by the blower obtains humidity through contact with water and the heating system of the heating device before entering the patient interface.

[0003] The ventilator also includes an air outlet pipe that is connected to the air outlet of the humidifier tank. In the prior art, the connection position and connection method of the air outlet pipe bring many inconveniences to the assembly, disassembly and use of the ventilator. For example, Chinese patent CN104689442B discloses a portable ventilator, which connects the air outlet pipe to the ventilator mainframe to achieve the connection between the air outlet pipe and the water box air outlet. In other words, the connection structure for connecting and fixing with the air outlet pipe is arranged on the ventilator mainframe, and there is no connection between the air outlet pipe and the water box air outlet, only the connection is achieved, and even the sealing of the air outlet pipe and the air outlet can be achieved through the action of the ventilator mainframe.

[0004] In order to ensure that the air outlet pipe is installed in place and sealed, this method not only has extremely high requirements on the installation position of the humidifier tank, but also increases the assembly steps of the whole machine, and the user's use steps are relatively cumbersome. Specifically, after the humidifier tank is installed, the air outlet pipe is inserted into the plug interface on the ventilator host. In this way, not only can the air outlet pipe and the humidifier tank not be assembled and cleaned separately as a module, but also in the process of manual assembly and disassembly of the humidifier tank by the user, the humidifier tank will inevitably shake to a certain extent, and the air outlet is in an open state during this process. Therefore, when the humidifier tank shakes, it is very easy to cause the water inside it to splash out from the air outlet, which will not only cause pollution to the outer surface of the host and the humidifier tank, increase the cleaning burden of the user, but also there is the possibility of water splashing to the blower inside the host, resulting in an increased risk of the blower being damaged by water.

[0005] Moreover, in the above scheme, when installing the air outlet pipe, it is necessary to fix the air outlet pipe and the ventilator host, as well as connect the air outlet pipe and the air outlet of the humidifier tank. Therefore, the air outlet pipe needs to be operated in two steps, and both installation and disassembly are time-consuming and laborious. Summary of the invention

[0006] The present application provides a humidifier tank for a ventilator to solve the problem that the installation steps of an air outlet pipe and a humidifier tank are complicated, and water leakage is very likely to occur when the air outlet is in an open state during the installation and removal of the humidifier tank.

[0007] The technical solution adopted in this application is:

[0008] A humidifier tank for a ventilator comprises a tank body with a water storage cavity and a cover body, wherein the tank body has a top wall, the top wall is provided with a water injection port, and the cover body can cover the water injection port; the cover body is provided with an air outlet, and the humidifier tank also comprises an air outlet pipe connected to the air outlet, the air outlet pipe is bent and extended and is rotatably connected to the cover body.

[0009] A first clamping rib is provided at the end of the air outlet pipe, and a first matching rib is provided at the edge of the air outlet, and the first clamping rib is clamped and fixed with the first matching rib; the first matching rib is an annular structure to surround the air outlet; or, the first matching rib is multiple and is arranged at intervals along the circumference of the air outlet.

[0010] The cover body comprises a main body and a lifting portion which bulges upward relative to the main body, and the air outlet is arranged on the lifting portion.

[0011] A flow-guiding convex rib is protruded on one side of the cover body facing the water storage chamber, and the flow-guiding convex rib extends along the circumference of the air outlet to surround at least a partial area of ​​the air outlet.

[0012] The tank body also has a plurality of side walls, and an inclined transition section is arranged between at least one side wall and the top wall, so that when the tank body is inverted, the liquid on the side wall is guided to the top wall through the transition section and discharged from the water storage cavity from the water injection port.

[0013] The edge of the water injection port is provided with a limiting rib protruding toward the inside of the water injection port, and the limiting rib is provided with a drainage port.

[0014] The limiting rib is provided with a matching groove, and the matching groove matches with the edge of the water injection port to form a drainage port.

[0015] The edge of the water injection port is provided with a limiting rib protruding toward the inside of the water injection port, and the cover body has a matching rib protruding downward and extending into the inside of the water injection port, and the matching rib can cooperate with the limiting rib. The humidification tank also includes a sealing ring, which is located between the lower side of the matching rib and the limiting rib; or, the sealing ring is located between the outer peripheral side of the matching rib and the inner wall of the water injection port.

[0016] The top wall is also provided with positioning convex ribs surrounding the outer periphery of the water injection port.

[0017] The tank body also has a side wall, which is provided with an air inlet. The humidification tank also includes an air inlet pipe which is connected to the air inlet and extends to the inside of the water storage cavity. The air inlet pipe bends or extends obliquely downward.

[0018] The air intake pipe is non-detachably fixed to the tank body; or, the air intake pipe is detachably connected to the tank body.

[0019] The end of the air inlet pipe is provided with a second clamping convex rib, the edge of the air inlet is provided with a second matching convex rib, and the second clamping convex rib is clamped and fixed with the second matching convex rib.

[0020] The air inlet is surrounded by a mounting rib, and one of the side wall of the mounting rib and the outer wall of the air inlet pipe is provided with a fixing groove, and the other is provided with a fixing rib that cooperates with the fixing groove, a locking structure is provided in the fixing groove, and a matching structure is provided in the fixing rib. The air inlet pipe and the mounting rib can rotate relative to each other so that the locking structure and the matching structure cooperate to lock or unlock.

[0021] A guide slideway communicated with the fixing groove is also arranged on one side of the fixing groove, and the guide slideway is spirally extended to the end of the mounting rib or the air inlet pipe.

[0022] The tank body has a first plug-in portion and a first clamping portion which are arranged opposite to each other along the radial direction of the air inlet, and the end of the air inlet pipe has a second plug-in portion and a second clamping portion which are arranged opposite to each other along the radial direction. The first plug-in portion and the second plug-in portion are plug-fitted to allow the air inlet pipe to swing around the plug-in portion, and the first clamping portion and the second clamping portion are clamped and fixed.

[0023] The outer wall of the tank body or the cover body is also provided with an unlocking piece, which can elastically move relative to the tank body or the cover body to lock or unlock with the main unit of the ventilator.

[0024] The cover body includes a shell, which covers the water inlet. The unlocking piece is arranged on the shell. The unlocking piece has a clamping structure for clamping and fixing with the main body of the ventilator. The upper surface of the shell has a mounting sinker. The unlocking piece is floatingly mounted on the mounting sinker. The unlocking piece can move to release the coupling between the clamping structure and the main body of the ventilator.

[0025] The unlocking member includes an operating panel and an elastic rib located below the operating panel. The elastic rib has a fixed end fixed to the operating panel and a free end extending obliquely toward the clamping structure. The free end can swing around the fixed end to make the operating panel float up and down.

[0026] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0027] 1. In the present application, the air outlet pipe is directly connected to the cover of the humidifier tank by rotation, and the humidifier tank with the air outlet pipe plugged in can be assembled with the main unit of the ventilator as a whole, without the need to insert the air outlet pipe after the humidifier tank is installed. This simplifies the assembly and disassembly steps of the humidifier tank, eliminates the disassembly steps of the air outlet pipe during the assembly and disassembly of the humidifier tank, and also reduces the assembly and disassembly times of the air outlet pipe to a certain extent, ensuring the connection stability and sealing of the air outlet pipe. In addition, since the air outlet pipe is connected to the cover and docked with the air outlet of the humidifier tank, the air outlet will not be in a fully open state, thereby avoiding the risk of internal water leaking from the air outlet due to the shaking of the humidifier tank, reducing the cleaning burden of the user, improving the user experience, and avoiding water splashing into the main unit, ensuring the service life of the fan inside the main unit.

[0028] In addition, the connection between the air outlet pipe and the cover body can ensure the connection stability and sealing of the air outlet pipe, so there is no need to connect the air outlet pipe to the main unit of the ventilator, so that the air outlet pipe can form a separate module with the humidification tank and be installed on the main unit or removed from the main unit together with the humidification tank.

[0029] Not only that, the air outlet is arranged on the cover of the humidification tank, and the air outlet pipe is rotatably connected to the cover, so that the air outlet pipe can be removed from the tank body together with the cover, and then the cover and the air outlet pipe can be directly cleaned. The user does not need to remove the air outlet pipe additionally, thereby reducing the number of times the air outlet pipe is installed and disassembled, ensuring the connection stability and sealing.

[0030] 2. As a preferred embodiment of the present application, the cover body includes a lifting portion that bulges upward relative to the main body, and the air outlet is arranged on the lifting portion. The cover body is arranged on the top wall of the tank body. When water is contained in the water storage chamber, the height difference between the cover body and the liquid surface is large, thereby reducing the probability of water splashing onto the cover body and leaking from the air outlet. The cover body is further provided with a lifting portion that bulges upward, and the air outlet is arranged on the lifting portion, which further increases the height of the position where the air outlet is located, making it farther from the liquid surface, thereby improving the anti-leakage effect. In addition, when the humidifier tank is inserted into the main unit of the ventilator, the raised lifting portion can make up the step difference between the outer surface of the humidifier tank and the outer surface of the main unit to a certain extent, so that the outer surface of the raised portion is basically flush with the outer surface of the main unit, making the appearance of the whole ventilator more uniform and smooth, reducing the step difference, and improving the appearance and feel of use.

[0031] 3. As a preferred embodiment of the present application, the tank body also has a plurality of side walls, and an inclined transition section is provided between at least one side wall and the top wall, so that when the tank body is inverted, the liquid on the side wall is guided to the top wall through the transition section and discharged from the water storage cavity from the water injection port. Usually, the water injection port is opened in a local area of ​​the top wall (for example, the center of the top wall), and a corner is formed between the top wall and the side wall. Therefore, when pouring out the water in the water storage cavity, the user tilts or inverts the tank body. Although most of the water can be poured out from the water injection port, a small amount of water will still accumulate at the corner between the top wall and the side wall. Therefore, in the prior art, an additional drainage hole is often opened in the tank body, which is sealed by a sealing plug, and the sealing plug is opened when draining. This method not only requires additional holes to be processed in the tank body, which increases the difficulty of processing and manufacturing, and increases the cost, but also increases the sealing requirements of the tank body. Once the drainage hole is not well sealed, water leakage will also occur. In this embodiment, by providing an inclined transition section between the top wall and the side wall, the original corner between the top wall and the side wall is changed into an inclined wall, so that when the tank body is tilted or inverted, the water on the side wall can flow to the water injection port on the top wall through the guidance of the transition section, and will not accumulate between the top wall and the side wall. In addition, the water in the water storage cavity can be discharged from the water injection port as much as possible, thereby improving the pouring efficiency and convenience of use, and no additional drainage holes need to be processed, reducing the processing difficulty.

[0032] 4. As a preferred embodiment of the present application, the edge of the water injection port is provided with a limiting rib protruding toward the inside of the water injection port, and the limiting rib is provided with a drain port. The limiting rib is provided at the edge of the water injection port, so that the conduction area of ​​the water injection port is reduced, which may affect the outflow of water when pouring out the water inside. Therefore, a drain port is provided on the limiting rib, so that the position of the drain port is closer to the transition section, so that the water flowing to the top wall through the transition section can flow out through the drain port, reducing the accumulation of water in the water storage chamber.

[0033] 5. As a preferred embodiment of the present application, the edge of the water injection port is provided with a limiting rib protruding toward the inside of the water injection port, and the cover body has a matching rib protruding downward and extending into the inside of the water injection port, and the matching rib can cooperate with the limiting rib. The limiting rib surrounds the water injection port, which can not only limit the installation of the cover body, but also prevent the cover body from excessively entering the inside of the water injection port, thereby ensuring a good covering state and sealing. At the same time, after the humidification tank is installed, the cover body is pressed by the main body of the ventilator, which increases the contact force between the cover body and the limiting rib. Therefore, on the one hand, the cover body is squeezed by the limiting rib and the pressing protrusion to maintain a stable position and a covering effect. On the other hand, the squeezing force between the cover body and the limiting rib increases, which also improves the sealing performance between the two and avoids water leakage inside the tank body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] 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:

[0035] Figure 1 This is a schematic diagram of the structure of a humidification tank in one embodiment of the present application;

[0036] Figure 2 for Figure 1 A cross-sectional view of the intermediate humidification tank;

[0037] Figure 3 This is a structural explosion diagram of a humidification tank in one embodiment of the present application;

[0038] Figure 4 This is a schematic structural diagram of a cover body according to an embodiment of the present application;

[0039] Figure 5 for Figure 4 A schematic diagram of the structure of the lower side of the middle cover body;

[0040] Figure 6 for Figure 4 A cross-sectional view of the middle cover body;

[0041] Figure 7 for Figure 6 Magnified view of area A in the middle;

[0042] Figure 8 This is a structural exploded diagram of a cover body according to an embodiment of the present application;

[0043] Fig. 9 This is a schematic diagram of the structure of an unlocking member in an implementation manner of the present application;

[0044] Fig.10 for Fig. 9 A schematic diagram of the structure of the unlocking part from another perspective;

[0045] Fig.11 This is a schematic diagram of the structure of a tank body according to an embodiment of the present application;

[0046] Fig.12 for Fig.11 Magnified view of area B;

[0047] Fig.13 for Fig.11 A cross-sectional view of the middle tank body in an inverted state;

[0048] Fig.14 This is a schematic diagram of the internal structure of a tank body according to an embodiment of the present application;

[0049] Fig.15 for Fig.14Magnified view of area C in the middle;

[0050] Fig.16 for Fig.14 Schematic diagram of the structure of the middle tank, in which the air intake pipe is not installed;

[0051] Fig.17 for Fig.16 Magnified view of area D in the middle;

[0052] Fig.18 This is a schematic diagram of the structure of an air intake pipe in one embodiment of the present application;

[0053] Fig.19 This is a schematic diagram of the internal structure of a tank under another embodiment of the present application;

[0054] Fig. 20 for Fig.19 A cross-sectional view of the middle tank body;

[0055] Fig.21 This is a schematic diagram of the assembly of a ventilator according to one embodiment of the present application;

[0056] Fig. 22 This is a schematic structural diagram of a humidification tank in another embodiment of the present application;

[0057] Fig.23 for Fig. 22 Structural exploded view of the humidification tank.

[0058] in:

[0059] 1 tank body; 11 air inlet; 12 water storage chamber; 13 water injection port; 131 positioning convex rib; 132 avoidance port; 133 limiting rib; 14 transition section; 15 drainage port; 16 installation convex rib; 161 fixing groove; 162 locking structure; 163 guide slideway; 17 first plug-in portion; 18 first clamping portion; 19 guide convex strip;

[0060] 2 cover body; 21 lifting part; 22 guide convex rib; 23 gripping part; 24 shell; 241 mounting sink; 242 positioning protrusion; 243 guide slide groove; 244 plug-in groove; 25 unlocking piece; 251 clamping structure; 252 anti-slip texture; 253 operation panel; 254 elastic rib position; 2541 fixed end; 2542 free end; 255 positioning port; 256 plug-in block; 26 sealing ring; 27 matching convex rib; 28 air outlet; 281 matching wall; 282 first matching convex rib; 283 limiting sink;

[0061] 3 air outlet pipe; 31 first sealing rubber ring; 32 first clamping convex rib; 33 containing groove; 34 limiting convex rib;

[0062] 4 air intake pipe; 41 fixing rib; 42 matching structure; 43 second plug-in portion; 44 second clamping portion;

[0063] 5 host; 51 plug-in cavity;

[0064] 6 locking member; 61 hook; 62 protective rib; 63 raised portion; 64 notch; 65 guide groove. DETAILED DESCRIPTION

[0065] 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.

[0066] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0067] 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, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0068] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0069] In the present application, unless otherwise clearly specified and limited, the first feature "above" or "below" the 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 "implementation method", "example", "one embodiment", "example" or "specific example" 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.

[0070] like Figures 1 to 3 As shown, a humidifier tank for a ventilator includes a tank body 1 with a water storage chamber 12 and a cover body 2, the tank body 1 has a top wall, the top wall is provided with a water inlet 13, and the cover body 2 can cover the water inlet 13; the cover body 2 is provided with an air outlet 28, and the humidifier tank also includes an air outlet pipe 3 connected to the air outlet 28, the air outlet pipe 3 is bent and extended and is rotatably connected to the cover body 2.

[0071] In the present application, the air outlet pipe 3 is directly connected to the cover body 2 of the humidification tank in rotation, and the humidification tank with the air outlet pipe 3 plugged in can be assembled with the mainframe 5 of the ventilator as a whole, without the need to insert the air outlet pipe 3 after the humidification tank is installed, so that the assembly and disassembly steps of the humidification tank are simplified, the disassembly steps of the air outlet pipe 3 are omitted in the process of assembling and disassembling the humidification tank, and the assembly and disassembly times of the air outlet pipe 3 are reduced to a certain extent, and the connection stability and sealing of the air outlet pipe 3 are guaranteed. In addition, since the air outlet pipe 3 is connected to the cover body 2, it is connected to the air outlet 28 of the humidification tank, and then the air outlet 28 will not be in a completely open state, thereby avoiding the risk of the humidification tank shaking and causing the internal water to leak from the air outlet 28, reducing the cleaning burden of the user, improving the user experience, and avoiding water splashing to the inside of the mainframe 5, ensuring the service life of the fan inside the mainframe 5.

[0072] In addition, the connection between the air outlet pipe 3 and the cover body 2 can ensure the connection stability and sealing of the air outlet pipe 3, so there is no need to connect the air outlet pipe 3 to the main unit 5 of the ventilator, so that the air outlet pipe 3 can form a separate module with the humidification tank, and be installed on the main unit 5 or removed from the main unit 5 together with the humidification tank. At the same time, the air outlet pipe 3 can rotate relative to the humidification tank, so that the direction of the mouth of the air outlet pipe 3 can be changed, thereby facilitating the connection with the user's inhalation pipeline.

[0073] Moreover, Figure 4 As shown, the air outlet 28 is arranged on the cover body 2 of the humidification tank, and the air outlet pipe 3 is rotatably connected to the cover body 2, so that the air outlet pipe 3 can be removed from the tank body 1 together with the cover body 2, and then the cover body 2 and the air outlet pipe 3 can be directly cleaned. The user does not need to remove the air outlet pipe 3 additionally, thereby reducing the number of times the air outlet pipe 3 is installed and removed, ensuring the connection stability and sealing.

[0074] It should be noted that, in the present application, the air outlet pipe 3 is connected to the cover body 2, and the cover body 2 can be removed from the tank body 1 to open the water inlet 13, so the user can remove the cover body 2 and clean the cover body 2 and the air outlet pipe 3. Therefore, the air outlet pipe 3 can be designed as a structure that cannot be removed from the cover body 2, so as to save the user the step of installing the air outlet pipe 3 and avoid the problem of reduced sealing due to frequent removal of the air outlet pipe 3.

[0075] Preferably, the air outlet pipe 3 is detachably connected to the cover body 2. Specifically, in one embodiment, Figure 6 , Figure 7 As shown, a first clamping rib 32 is disposed at the end of the air outlet pipe 3 , a first matching rib 282 is disposed at the edge of the air outlet 28 , and the first clamping rib 32 is clamped and fixed with the first matching rib 282 .

[0076] like Figure 6 , Figure 7 As shown, the air outlet pipe 3 is inserted into the air outlet 28 from the outside of the humidification tank, so that the first snap-fit ​​rib 32 at the end of the air outlet pipe 3 reaches below the first matching rib 282 at the edge of the air outlet 28, so that the two are snap-fitted, and the first matching rib 282 is located above the first snap-fit ​​rib 32, forming an upward limit for it, so that the air outlet pipe 3 cannot fall out of the air outlet 28.

[0077] Specifically, in one embodiment, the first matching rib 282 is an annular structure to surround the air outlet 28. When the user inserts the air outlet pipe 3 into the air outlet 28, the lower end of the first clamping rib 32 interferes with the first matching rib 282. At this time, the user applies a downward pressing force to make the first clamping rib 32 slide over the first matching rib 282 and move to the bottom of the first matching rib 282 to complete the clamping.

[0078] Preferably, if Figure 7 As shown, the lower end of the first engaging rib 32 and / or the upper surface of the first mating rib 282 are provided with a guiding slope or an arc surface so that the first engaging rib 32 can slide smoothly over the first mating rib 282 when the user applies downward pressure.

[0079] In another embodiment, there are multiple first matching ribs 282 and they are arranged at intervals along the circumference of the air outlet 28. On the basis of ensuring the matching stability with the first clamping rib 32, the material used for the first matching rib 282 can be reduced to save costs.

[0080] Preferably, the first snap-fit ​​rib 32 protrudes outward in the radial direction of the air outlet pipe 3, wherein the first snap-fit ​​rib 32 can surround the air outlet pipe 3 so as to form snap-fit ​​with the first matching rib 282 in a circumferential circle. The first snap-fit ​​rib 32 can also be multiple sections arranged at intervals along the circumferential direction. When the first matching rib 282 is a discontinuous multiple section, an opening for the first snap-fit ​​rib 32 to pass through is formed between two adjacent sections of the first matching rib 282. During assembly, the first snap-fit ​​rib 32 can be aligned with the opening and passed through the first matching rib 282, and then the air outlet pipe 3 is rotated to make the first snap-fit ​​rib 32 and the first matching rib 282 misaligned up and down to achieve snap-fit.

[0081] Preferably, if Figure 7As shown, the edge of the air outlet 28 protrudes toward the inside of the water storage chamber 12 to form a matching wall 281, and the first matching rib 282 is arranged at the lower end of the matching wall 281. A first sealing rubber ring 31 is also arranged between the outer peripheral side of the air outlet pipe 3 and the matching wall 281 to seal the gap between the air outlet pipe 3 and the air outlet 28. Figure 7 As shown, a receiving groove 33 for accommodating the first sealing rubber ring 31 can be provided on the outer wall of the air outlet pipe 3 and / or the matching wall 281 to limit the first sealing rubber ring 31 and ensure its position stability.

[0082] like Figure 7 As shown, the outer wall of the cover body 2 is further provided with a limiting groove 283 at the air outlet 28, and the outer periphery of the air outlet pipe 3 is provided with a limiting convex rib 34 protruding outward, and the limiting convex rib 34 is accommodated in the limiting groove 283. On the one hand, the upper surface of the limiting convex rib 34 is flush with the surface of the cover body 2 where the air outlet 28 is located, thereby improving the flatness of the appearance, and on the other hand, the air outlet pipe 3 can be limited toward the inside of the water storage chamber 12, thereby preventing the air outlet pipe 3 from excessively extending into the inside of the water storage chamber 12.

[0083] The air outlet pipe 3 can be a structure made of a flexible material or a hard structure. Of course, the air outlet pipe 3 can also be detachably connected to the cover body 2 in other ways, such as threaded connection, interference fit plug connection, etc., which are not limited here.

[0084] As a preferred embodiment of the present application, Figure 1 , Figure 2 , Figure 3 As shown, the cover body 2 includes a main body and a lifting portion 21 that bulges upward relative to the main body, and the air outlet 28 is arranged on the lifting portion 21 .

[0085] The cover body 2 is covered on the top wall of the tank body 1. When water is contained in the water storage chamber 12, the height difference between the cover body 2 and the liquid surface is large, thereby reducing the probability of water splashing to the cover body 2 and leaking from the air outlet 28. The cover body 2 is further provided with an upwardly raised lifting portion 21, and the air outlet 28 is provided on the lifting portion 21, which further increases the height of the position where the air outlet 28 is located, making it farther from the liquid surface, thereby improving the anti-leakage effect. In addition, when the humidification tank is inserted into the mainframe 5 of the ventilator, the raised lifting portion 21 can make up the step difference between the outer surface of the humidification tank and the outer surface of the mainframe 5 to a certain extent, so that the outer surface of the raised portion is substantially flush with the outer surface of the mainframe 5, making the appearance of the entire ventilator more uniform and smooth, reducing the step difference, and improving the appearance and feel of use.

[0086] Specifically, Fig.21As shown, the main unit 5 of the ventilator is provided with a plug-in cavity 51, and at least part of the humidification tank can be inserted into the plug-in cavity 51. The cavity wall of the plug-in cavity 51 is provided with an avoidance gap, and the lifting portion 21 is located in the avoidance gap, so that the air outlet pipe 3 extends out of the main unit 5 through the avoidance gap. The outer surface of the lifting portion 21 is flush with the outer surface of the main unit 5.

[0087] Preferably, if Figure 5 , Figure 6 As shown, a guide rib 22 is protruding from one side of the cover body 2 facing the water storage chamber 12 , and the guide rib 22 extends along the circumference of the air outlet 28 to surround at least a portion of the air outlet 28 .

[0088] The guide rib 22 surrounds the periphery of at least part of the air outlet 28, and can block the water in the water storage chamber 12, especially when the humidification tank shakes or tilts, to prevent water from flowing out to the patient end through the air outlet 28. At the same time, it can guide the humidified gas so that the airflow can flow out of the air outlet 28 along the guide rib 22.

[0089] Specifically, Figure 5 As shown, the guide rib 22 is composed of two sections symmetrically arranged along the center of the air outlet 28. The two sections of the guide rib 22 have an arc section, which surrounds the outer periphery of the air outlet 28. The guide rib 22 also has a vertical section, which is connected to other ribs on the inner side of the cover body 2 to improve the structural strength of the guide rib 22.

[0090] As a preferred embodiment of the present application, Figure 3 , Fig.11 , Fig.12 , Fig.13 As shown, the tank body 1 also has a plurality of side walls, and an inclined transition section 14 is provided between at least one side wall and the top wall, so that when the tank body 1 is inverted, the liquid on the side wall is guided to the top wall via the transition section 14 and discharged from the water storage chamber 12 from the water injection port 13.

[0091] Normally, the water inlet 13 is provided in a local area of ​​the top wall (e.g., the center of the top wall), and a corner is formed between the top wall and the side wall. Therefore, when pouring out the water in the water storage chamber 12, the user tilts or inverts the tank body 1. Although most of the water can be poured out from the water inlet 13, a small amount of water will still accumulate at the corner between the top wall and the side wall. Therefore, in the prior art, an additional drainage hole is often provided in the tank body 1, which is sealed by a sealing plug, and the sealing plug is opened when draining. This method not only requires additional processing of holes in the tank body 1, which increases the difficulty of processing and manufacturing and increases the cost, but also increases the sealing requirements of the tank body 1. Once the drainage hole is not well sealed, water leakage will also occur.

[0092] In this embodiment, by providing an inclined transition section 14 between the top wall and the side wall, the original corner between the top wall and the side wall is changed into an inclined wall, so that when the tank body 1 is tilted or inverted, the water on the side wall can flow to the water injection port 13 on the top wall through the guidance of the transition section 14, and will not accumulate between the top wall and the side wall. In addition, the water in the water storage chamber 12 can be discharged from the water injection port 13 as much as possible, thereby improving the pouring efficiency and convenience of use, and no additional drainage holes need to be processed, reducing the processing difficulty.

[0093] It is to be understood that the “tank body 1 is inverted” described in the present application does not only mean that the tank body 1 is turned 180°, but that the tank body 1 of the humidification tank is tilted to pour water, such as Fig.13 As shown, the lowest point of the top wall is made lower than the lowest point of the side wall. At this time, the tank body 1 can be regarded as being inverted, so that the water inside the tank body can flow from the side wall to the top wall.

[0094] In a preferred embodiment of this embodiment, Figure 1 , Figure 3 , Fig.11 As shown, when the humidification tank is installed on the ventilator host 5, an air inlet 11 is provided on the side wall facing the host 5, so that the airflow inside the host 5 can enter the humidification tank to be humidified. A transition section 14 is provided between the side wall and the top wall. Of course, the transition section 14 can also be provided between the side wall and the top wall in other directions, or a transition section 14 can be provided between each side wall and the top wall, so that the water inside the tank body 1 can be poured out smoothly no matter which direction it is tilted.

[0095] Preferably, if Figure 3 , Fig.11 As shown, the inner wall of the transition section 14 is a sloped structure. Of course, it can also be a curved structure or other shapes, as long as it can guide the water on the side wall to the top wall when the tank body 1 is inverted.

[0096] Furthermore, if Fig.11 , Fig.12 As shown, the edge of the water injection port 13 is provided with a limiting rib 133 protruding toward the inside of the water injection port 13 , and the limiting rib 133 is provided with a drainage port 15 .

[0097] The limiting rib 133 is arranged at the edge of the water injection port 13, so that the conduction area of ​​the water injection port 13 is reduced, which may affect the outflow of water when pouring out the water inside. Therefore, a drain port 15 is arranged on the limiting rib 133, so that the position of the drain port 15 is closer to the transition section 14, so that the water flowing to the top wall through the transition section 14 can flow out through the drain port 15, reducing the accumulation of water in the water storage chamber 12.

[0098] Furthermore, if Fig.12As shown, the limiting rib 133 has a matching groove, and the matching groove cooperates with the edge of the water injection port 13 to form a drainage port 15.

[0099] The matching groove cooperates with the inner wall of the water injection port 13 to form a drain port 15, so that the position of the drain port 15 is closer to the edge of the water injection port 13, so that the water in the water storage chamber 12 can flow to the drain port 15 as quickly as possible to reduce the accumulation inside.

[0100] Preferably, if Fig.11 , Fig.12 As shown, the water inlet 13 is square, and the drain outlet 15 is located at the corner between the two edges of the water inlet 13. Of course, the drain outlet 15 can also be set on the edge of the water inlet 13, or there are multiple drain outlets 15, which are arranged at intervals along the circumference of the water inlet 13, which is not limited here.

[0101] Preferably, if Figure 4 , Figure 6 , Fig.11 As shown, the edge of the water injection port 13 is provided with a limiting rib 133 protruding toward the inside of the water injection port 13 , and the cover body 2 has a matching rib 27 protruding downward and extending into the inside of the water injection port 13 , and the matching rib 27 can cooperate with the limiting rib 133 .

[0102] The limiting rib 133 surrounds the water injection port 13, which can not only limit the installation of the cover body 2, but also prevent the cover body 2 from excessively entering the water injection port 13, thereby ensuring a good covering state and sealing. At the same time, after the humidification tank is installed, the cover body 2 is pressed by the ventilator host 5, which increases the contact force between it and the limiting rib 133. Therefore, on the one hand, the cover body 2 is squeezed by the limiting rib 133 and the pressing protrusion to maintain a stable position and a covering effect. On the other hand, the squeezing force between the cover body 2 and the limiting rib 133 is increased, which also improves the sealing performance between the two and avoids water leakage inside the tank body 1.

[0103] Furthermore, the humidification tank further includes a sealing ring 26, wherein the present application does not limit the position of the sealing ring 26, which can be located between the lower side of the matching convex rib 27 and the limiting rib 133, or can be located as shown in FIG. Figure 6As shown, it is located between the outer peripheral side of the matching rib 27 and the inner wall of the water injection port 13. When the sealing ring 26 is located between the lower side of the matching rib 27 and the limiting rib 133, after the cover body 2 covers the water injection port 13, the sealing ring 26 is squeezed up and down under the action of the downward pressure to deform it, thereby sealing the gap. When the humidification tank is loaded into the ventilator host 5, the host 5 will further apply downward pressure to the cover body 2, thereby further pressurizing the sealing ring 26 and improving the sealing effect. When the sealing ring 26 is located between the outer peripheral side of the matching rib 27 and the edge of the water injection port 13, the matching rib 27 and the inner wall of the water injection port 13 laterally squeeze the sealing ring 26 to deform and seal it, and increase the friction resistance of the cover body 2 during the up and down movement, thereby improving the covering stability of the cover body 2.

[0104] Preferably, if Figure 3 As shown, the top wall is also provided with a positioning rib 131 surrounding the outer periphery of the water injection port 13.

[0105] The positioning rib 131 is disposed on the outside of the top wall and protrudes upward, which can play a positioning role in the installation of the cover body 2, and improve the convenience of the user when closing the cover body 2. At the same time, when the cover body 2 is removed, the water injection port 13 is opened, and the positioning rib 131 can also block the water splashing from the water injection port 13. The positioning rib 131 can also guide the water flowing out of the drain port 15, so that it flows along the positioning rib 131 and drips, and does not flow to other areas of the top wall.

[0106] like Figure 3 , Figure 5 As shown, the positioning rib 131 has an escape opening 132 , and the cover body 2 has a gripping portion 23 . The gripping portion 23 extends out of the positioning rib 131 from the escape opening 132 , so as to facilitate the user to remove the cover body 2 .

[0107] In a preferred embodiment, Figure 2 As shown, the tank body 1 also has a side wall with an air inlet 11, and the humidification tank also includes an air inlet pipe 4 connected to the air inlet 11 and extending to the inside of the water storage chamber 12, and the air inlet pipe 4 is bent or inclined downward.

[0108] The airflow blown out from the blower inside the main unit 5 enters the water storage chamber 12 through the air inlet 11, is guided by the air inlet pipe 4 extending downward, contacts the water in the water storage chamber 12 to complete humidification, and is discharged from the upper air outlet 28. The air inlet pipe 4 extending downward can make the gas flow toward the liquid surface, thereby ensuring that the gas and water are completely in contact, improving the humidification effect, and at the same time, it can prevent the water in the water storage chamber 12 from flowing into the main unit 5 through the air inlet pipe 4 when the humidification tank is slightly tilted.

[0109] Specifically, the end of the air inlet pipe 4 can be bent downward, or the air inlet pipe 4 can be extended downwardly as a whole, so that it is closer and closer to the liquid level in the water storage chamber 12. The outlet of the air inlet pipe 4 is higher than the liquid level in the water storage chamber 12.

[0110] The present application does not limit the assembly method of the air intake pipe 4 and the tank body 1. In one embodiment, the air intake pipe 4 is non-detachably fixed to the tank body 1 to ensure the stability and sealing of the connection and avoid frequent disassembly causing a decrease in sealing. In another embodiment, the air intake pipe 4 is detachably connected to the tank body 1 so that the user can easily remove the air intake pipe 4 for cleaning.

[0111] Furthermore, this embodiment does not limit the connection method between the air inlet pipe 4 and the tank body 1. In a specific example, Figure 2 As shown, the end of the air inlet pipe 4 is provided with a second snap-fit ​​rib, the edge of the air inlet 11 is provided with a second matching rib, and the second snap-fit ​​rib is snap-fitted and fixed with the second matching rib. In this example, the air inlet pipe 4 is fixed to the air inlet 11 of the tank body 1 by snap-fitting, and assembly and disassembly are simple and convenient. Among them, the snap-fitting fixing structure and connection method of the air inlet pipe 4 and the tank body 1 can refer to the snap-fitting fixing structure and connection method of the air outlet pipe 3 and the tank body 1 mentioned above, and will not be repeated here.

[0112] In another specific example, Figures 14 to 18 As shown, the outer periphery of the air inlet 11 is surrounded by a mounting rib 16, and one of the side wall of the mounting rib 16 and the outer wall of the air inlet pipe 4 is provided with a fixing groove 161, and the other is provided with a fixing rib 41 that cooperates with the fixing groove 161, and a locking structure 162 is provided in the fixing groove 161, and the fixing rib 41 is provided with a matching structure 42, and the air inlet pipe 4 and the mounting rib 16 can rotate relative to each other so that the locking structure 162 and the matching structure 42 cooperate to lock or unlock.

[0113] After the fixing rib 41 and the fixing groove 161 are matched, the air intake pipe 4 can rotate relative to the tank body 1, so that the fixing rib 41 rotates in the fixing groove 161. When the two rotate relative to each other until the locking structure 162 and the matching structure 42 are matched, the air intake pipe 4 and the tank body 1 are locked. When the two rotate until the locking structure 162 and the matching structure 42 are released from matching, the air intake pipe 4 and the tank body 1 are unlocked, and the air intake pipe 4 can be removed.

[0114] like Fig.15 , Fig.18 As shown, the fixing groove 161 is arranged on the mounting rib 16, and the fixing rib 41 is arranged on the air intake pipe 4. Of course, the positions of the two can also be interchanged.

[0115] Specifically, Fig.15 , Fig.18As shown, the locking structure 162 includes a locking rib disposed in the fixed groove 161, and the matching structure 42 includes a locking groove disposed in the fixed rib 41. When the locking rib is located in the locking groove, locking is achieved, and when the locking rib is removed from the locking groove, unlocking is completed. Of course, the locking structure 162 can also be set as a groove structure, and the matching structure 42 can be set as a rib structure, which is not limited here. Alternatively, the locking structure 162 and the matching structure 42 can also be set as rib structures. When the rib structure on the fixed rib 41 is located on one side of the rib structure in the fixed groove 161, the two are in a locked state, and when the rib structure on the fixed rib 41 is located on the other side of the rib structure in the fixed groove 161, the two are in an unlocked state.

[0116] Furthermore, if Fig.16 , Fig.17 As shown, a guide slide 163 communicating with the fixing groove 161 is further provided on one side of the fixing groove 161 , and the guide slide 163 extends in a spiral shape to the end of the mounting rib 16 or the air inlet pipe 4 .

[0117] The guide slide 163 can guide the installation of the air intake pipe 4. First, place the fixing rib 41 in the guide slide 163, and then rotate the air intake pipe 4 to move the fixing rib 41 along the guide slide 163 toward the fixing groove 161 until the air intake pipe 4 and the tank body 1 are locked. When removing the air intake pipe 4, just rotate the air intake pipe 4 in the opposite direction.

[0118] Preferably, if Fig.18 As shown, guiding slopes are provided at both ends of the fixing rib 41. The fixing rib 41 and the fixing groove 161 are arranged radially opposite to each other on both sides of the air inlet 11, so that the air inlet pipe 4 is fixed to the tank body 1 at both sides at the same time, thereby improving the fixing effect.

[0119] In another specific example, Fig.19 , Fig. 20 As shown, the tank body 1 has a first plug-in portion 17 and a first clamping portion 18 which are arranged radially opposite to each other along the air inlet 11, and the end of the air inlet pipe 4 has a second plug-in portion 43 and a second clamping portion 44 which are arranged radially opposite to each other. The first plug-in portion 17 and the second plug-in portion 43 are plug-fitted to allow the air inlet pipe 4 to swing around the plug-in portion, and the first clamping portion 18 and the second clamping portion 44 are clamped and fixed.

[0120] In this example, Fig. 20 As shown, when installing the air intake pipe 4, first plug the first plug-in portion 17 and the second plug-in portion 43 into each other to form a simple fixation on one side of the end of the air intake pipe 4. The air intake pipe 4 can now swing around the plug-in portion, and then plug and fix the first clamping portion 18 and the second clamping portion 44 on the other side to achieve a fixed connection between the air intake pipe 4 and the tank body 1.

[0121] Specifically, Fig.19 , Fig. 20 As shown, the first plug-in portion 17 may be a protruding structure, the second plug-in portion 43 includes an insertion interface that plugs with the protruding structure, and the first clamping portion 18 and / or the second clamping portion 44 are provided with a clamping hook.

[0122] Of course, in addition to the above three examples, the air intake pipe 4 can also be connected to the tank body 1 in other ways, such as threaded connection, etc., which are not limited here. No matter which way is adopted, a second sealing rubber ring can be set on the outer periphery of the air intake pipe 4 to make the air intake pipe 4 and the air inlet 11 seal. And an annular groove for limiting the second sealing rubber ring can be set at the end of the air intake pipe 4.

[0123] As a preferred embodiment of the present application, Figure 4 , Figure 8 As shown, the cover body 2 includes a shell 24 and an unlocking member 25. The shell 24 covers the water inlet 13. The unlocking member 25 has a clamping structure 251 for clamping and fixing with the ventilator host 5. The upper surface of the shell 24 has a mounting sink 241. The unlocking member 25 is floatingly installed on the mounting sink 241. The unlocking member 25 can move to release the clamping structure 251 from the ventilator host 5.

[0124] In this embodiment, when the humidification tank is disassembled, the user can manually drive the unlocking member 25 to elastically move so as to unlock it from the host 5 .

[0125] Specifically, in one embodiment, Figure 4 As shown, the snap-fit ​​structure 251 is a snap hook, and a snap slot is provided on the main unit 5 of the ventilator. When the humidifier tank is installed in the main unit 5, the snap hook extends into the snap slot to achieve snap-fit ​​fixation, and at the same time, the humidifier tank is locked so that it cannot be removed from the main unit 5. The unlocking member 25 is floatingly arranged in the installation sink 241. When the user drives the unlocking member 25 to move by pressing or other means, the snap-fit ​​structure 251 moves with the unlocking member 25, thereby disengaging from the main unit 5 (the snap hook is removed from the snap slot). At this time, the humidifier tank is unlocked from the main unit 5, and the user can take the humidifier tank out of the main unit 5.

[0126] In this embodiment, although the unlocking member 25 is provided so that the user can directly control the unlocking member 25 to realize the motion control of the clamping structure 251, making the unlocking more labor-saving. However, this embodiment does not limit the user's operation method, and the above only exemplifies one of the operation methods. For example, in another embodiment, the clamping structure 251 and the fixed structure of the host 5 are provided with a guiding transition surface, so that during the process of inserting and removing the humidification tank, even if the user does not press the unlocking member 25, the clamping structure 251 can also undergo elastic movement under the squeezing force of the fixed structure to complete the unlocking.

[0127] This embodiment does not limit the connection method between the unlocking member 25 and the shell 24. In one embodiment, an elastic member is arranged between the unlocking member 25 and the shell 24. The elastic member can be an elastic member such as a spring, a silicone member, etc., so that the unlocking member 25 can float under the action of its own elastic force.

[0128] In another embodiment, if Figures 8 to 10 As shown, the unlocking member 25 includes an operating panel 253 and an elastic rib 254 located below the operating panel 253. The elastic rib 254 has a fixed end 2541 fixed to the operating panel 253 and a free end 2542 extending obliquely toward the snap-on structure 251. The free end 2542 can swing around the fixed end 2541 to allow the operating panel 253 to float up and down.

[0129] Specifically, Fig. 9 , Fig.10 As shown, the snap-fit ​​structure 251 is located at one end of the operating panel 253, and the elastic rib 254 extends obliquely toward the end where the snap-fit ​​structure 251 is located. Therefore, when the user presses the operating panel 253, the end where the snap-fit ​​structure 251 is located will float downward, thereby causing the snap-fit ​​structure 251 and the host 5 to disengage and complete the unlocking.

[0130] Preferably, if Figure 8 As shown, the mounting platform 241 is provided with a positioning protrusion 242, and the free end 2542 of the elastic rib position 254 is provided with a positioning hole 255 that cooperates with the positioning protrusion 242. The mounting platform 241 is also provided with a guide groove 243 located on both sides of the elastic rib position 254. The guide groove 243 can cooperate with the two ends of the elastic rib position 254 to guide the installation of the unlocking member 25.

[0131] like Figure 8 As shown, inverted L-shaped ribs are provided on both sides of the positioning protrusion 242, and the opposite sides of the two inverted L-shaped ribs constitute a guide slot 243, and the guide slot 243 extends horizontally. When the unlocking member 25 is installed, the two ends of the elastic rib position 254 are respectively located in the guide slot 243, and are guided by the inverted L-shaped ribs to move horizontally until the positioning protrusion 242 and the positioning port 255 are matched, so that the unlocking member 25 is fixed to the shell 24.

[0132] Preferably, if Figure 8 , Fig. 9 , Fig.10 As shown, one of the opposite end faces of the unlocking member 25 and the mounting sink 241 is provided with a plug-in block 256, and the other is provided with a plug-in groove 244, which are plugged together to limit the relative position of the unlocking member 25 and the housing 24.

[0133] like Figure 8 , Fig. 9As shown, the operation panel 253 is provided with anti-slip textures 252 to improve the user's feel during operation and enhance the user experience.

[0134] like Figure 1 As shown, along the direction perpendicular to the insertion direction of the humidifier tank, the length of the unlocking member 25 is greater than the length of the cover body 2, and the clamping structures 251 are respectively located on both sides of the unlocking member 25, and the clamping structures 251 are exposed on both sides of the cover body 2. The clamping structure 251 is exposed on the cover body 2, so that it can be more conveniently and directly matched with the host 5, and prevent interference with the cover body 2, thereby improving the compactness of the structure.

[0135] In another embodiment, if Fig. 22 , Fig.23 As shown, the tank body 1 or the cover body 2 is provided with a locking member 6, which can elastically move relative to the housing 1 to lock or unlock with the main unit 5 of the ventilator. During the process of plugging and removing the humidifier tank, the locking member 6 is abutted and automatically moves, thereby completing the unlocking with the main unit 5. That is to say, taking the process of removing the humidifier tank as an example, the user only needs to apply a force opposite to the plugging direction to the humidifier tank, and the locking member 6 can be abutted by the unlocking structure on the main unit 5 and elastically move, thereby completing the loosening with the fixed structure on the main unit 5.

[0136] Specifically, the locking member 6 extends along the plugging direction of the humidifier tank, one end of which is fixed to the humidifier tank and the other end is free, and a hook 61 is provided at the free end.

[0137] Preferably, if Fig. 22 , Fig.23 As shown, the fixed structure of the hook 61 and / or the host 5 is provided with a guiding transition surface, wherein the guiding transition surface can be a slope or an arc surface or other irregular curved surface. During the insertion and removal of the humidification tank, the hook 61 can contact the fixed structure through the guiding transition surface, thereby generating a force perpendicular to the insertion direction, so that the locking piece 6 undergoes elastic movement to complete the engagement with the fixed structure, or release the engagement with the fixed structure.

[0138] Among them, Fig. 22 , Fig.23 As shown, the locking member 6 can be arranged on the tank body 1 or on the cover body 2 .

[0139] Preferably, if Fig. 22 , Fig.23 As shown, the top wall of the housing 1 includes a main body and a raised portion 63 raised upward from the main body, the locking member 6 is fixed to the side wall of the raised portion 63 so that there is an avoidance gap between it and the main body, and the main body is also provided with an upwardly protruding protective rib 62, the protective rib 62 is located on both sides of the locking member 6, and the upper edge of the protective rib 62 is not higher than the upper edge of the locking member 6.

[0140] The locking member 6 is fixed to the side wall of the raised portion 63, so that a clearance gap is formed between the lower side and the main body, and the locking member 6 can swing up and down. Since the locking member 6 is arranged on the raised portion 63, it protrudes from the outer surface of the housing 1. When the humidifier tank is removed from the main unit 5, the protruding locking member 6 is easy to collide with other components, and there is a risk of deformation or breakage of the locking member 6. By arranging the protective rib 62 on the main body, the protective rib 62 is located on both sides of the locking member 6, so that the protective rib 62 can protect the locking member 6, so that foreign objects will not directly contact the locking member 6. At the same time, the upper edge of the protective rib 62 is not higher than the upper edge of the locking member 6, and it is also ensured that the hook 61 of the locking member 6 can directly contact the main unit 5 to complete the snap-fit.

[0141] Specifically, Fig. 22 , Fig.23 As shown, a deformation cavity is formed between the protective ribs 62 on both sides, and the locking member 6 can move into the deformation cavity. At the same time, the free end of the locking member 6 is provided with an upwardly protruding hook 61, and the upper edge of the protective rib 62 is flush with or lower than the top of the hook 61, so that the hook 61 can normally cooperate with the fixed structure on the host 5.

[0142] Specifically, the fixing structure is a mating hook protruding toward the inside of the plug-in cavity 51, and the mating hook can be fixed with the hook 61 of the locking piece 6. Of course, the fixing structure can also be a mating groove, or other structures that can cooperate with the hook 61 of the locking piece 6, which is not limited here.

[0143] like Figure 1 , Fig. 22 As shown, the humidifier tank includes a gripping section and an inserting section. The cross-sectional area of ​​the gripping section is larger than that of the inserting section. A step surface is formed between the two. A avoidance opening 64 is formed on the cover body 2. When the cover body 2 is installed on the tank body 1, one end face of the avoidance opening 64 is flush with the step surface.

[0144] Preferably, if Figure 1 , Fig. 22 , Fig.23 As shown, the inner wall of the insertion cavity 51 of the host 5 is provided with a guide rib, the cover body 2 is also provided with a guide groove 65 that cooperates with the guide rib, the avoidance opening 64 is located at the end of the guide groove 65, the guide groove 65 and the guide rib extend along the first direction, and the two can cooperate to form an installation guide for the humidification tank. Preferably, the locking member 6 or the clamping structure 251 is arranged in the avoidance opening 64, so that after the humidification tank is plugged in place, the locking member 6 or the clamping structure 251 is matched with the host 5.

[0145] Preferably, if Fig.21 As shown, the humidifier tank is also provided with a guide convex strip 19 for cooperating with the guide structure on the host 5 to form a movement guide for the installation and removal of the humidifier tank.

[0146] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0147] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0148] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A humidifier tank for a ventilator, characterized in that: It includes a tank body with a water storage cavity and a cover body, the tank body has a top wall, the top wall is provided with a water inlet, and the cover body can cover the water inlet; the cover body is provided with an air outlet, and the humidification tank also includes an air outlet pipe connected to the air outlet, the air outlet pipe is bent and extended and is rotatably connected to the cover body.

2. The humidification tank for a breathing machine according to claim 1, characterized in that: The end of the air outlet pipe is provided with a first clamping rib, the edge of the air outlet is provided with a first matching rib, the first clamping rib is clamped and fixed with the first matching rib; the first matching rib is an annular structure to surround the air outlet; or, The first matching ribs are multiple and are arranged at intervals along the circumference of the air outlet.

3. The humidification tank for a breathing machine according to claim 1, characterized in that: The cover body includes a main body and a lifting portion that bulges upward relative to the main body, and the air outlet is arranged on the lifting portion.

4. The humidification tank for a breathing machine according to claim 1, characterized in that: A flow-guiding convex rib is protruded from one side of the cover body facing the water storage chamber, and the flow-guiding convex rib extends along the circumference of the air outlet to surround at least a partial area of ​​the air outlet.

5. The humidification tank for a breathing machine according to claim 1, characterized in that: The tank body also has a plurality of side walls, and an inclined transition section is provided between at least one of the side walls and the top wall, so that when the tank body is inverted, the liquid on the side wall is guided to the top wall via the transition section and discharged from the water storage cavity from the water injection port.

6. The humidification tank for a breathing machine according to claim 5, characterized in that: The edge of the water injection port is provided with a limiting rib protruding toward the inside of the water injection port, and the limiting rib is provided with a drainage port.

7. The humidifier tank for a ventilator according to claim 1, characterized in that: The edge of the water injection port is provided with a limiting rib protruding toward the inside of the water injection port, and the cover body has a matching rib protruding downward and extending into the inside of the water injection port, and the matching rib can cooperate with the limiting rib. The humidification tank also includes a sealing ring, which is located between the lower side of the matching rib and the limiting rib; or, the sealing ring is located between the outer peripheral side of the matching rib and the inner wall of the water injection port.

8. The humidification tank for a breathing machine according to claim 1, characterized in that: The top wall is also provided with positioning convex ribs surrounding the outer periphery of the water injection port.

9. The humidification tank for a breathing machine according to claim 1, characterized in that: The tank body also has a side wall, and an air inlet is opened on the side wall. The humidification tank also includes an air inlet pipe connected to the air inlet and extending to the inside of the water storage cavity. The air inlet pipe is bent or inclined downward.

10. The humidification tank for a breathing machine according to claim 9, characterized in that: The air intake pipe is non-detachably fixed to the tank body; or, the air intake pipe is detachably connected to the tank body.

11. The humidifier tank for a ventilator according to claim 9, characterized in that: The end of the air inlet pipe is provided with a second clamping rib, the edge of the air inlet is provided with a second matching rib, and the second clamping rib is clamped and fixed with the second matching rib.

12. The humidifier tank for a breathing machine according to claim 9, characterized in that: The air inlet is surrounded by a mounting rib, one of the side wall of the mounting rib and the outer wall of the air inlet pipe is provided with a fixing groove, the other of the two is provided with a fixing rib that cooperates with the fixing groove, a locking structure is provided in the fixing groove, and the fixing rib is provided with a matching structure, and the air inlet pipe and the mounting rib can rotate relative to each other so that the locking structure and the matching structure cooperate to lock or unlock.

13. The humidifier tank for a breathing machine according to claim 12, characterized in that: A guide slideway communicated with the fixing groove is also provided on one side of the fixing groove, and the guide slideway extends in a spiral shape to the mounting rib or the end of the air intake pipe.

14. The humidifier tank for a ventilator according to claim 9, characterized in that: The tank body has a first plug-in portion and a first clamping portion which are arranged opposite to each other radially along the air inlet, and the end of the air inlet pipe has a second plug-in portion and a second clamping portion which are arranged opposite to each other radially. The first plug-in portion and the second plug-in portion are plug-fitted to each other so that the air inlet pipe can swing around the plug-in portion, and the first clamping portion and the second clamping portion are clamped and fixed.

15. The humidification tank for a breathing machine according to claim 1, characterized in that: The outer wall of the tank body or the cover body is also provided with an unlocking piece, and the unlocking piece can elastically move relative to the tank body or the cover body to lock or unlock with the host of the ventilator.

16. The humidification tank for a breathing machine according to claim 15, characterized in that: The cover body includes a shell, the shell covers the water filling port, the unlocking piece is arranged on the shell, the unlocking piece has a clamping structure for clamping and fixing with the main body of the ventilator, the upper surface of the shell has a mounting sinker, the unlocking piece is floatingly mounted on the mounting sinker, and the unlocking piece can move to release the clamping structure from the main body of the ventilator.

17. The humidifier tank for a ventilator according to claim 16, characterized in that: The unlocking member includes an operating panel and an elastic rib located below the operating panel, wherein the elastic rib has a fixed end fixed to the operating panel and a free end extending obliquely toward the clamping structure, and the free end can swing around the fixed end to make the operating panel float up and down.

Images