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 application belongs to the technical field of medical equipment, and particularly relates to a humidification tank for a breathing machine. BACKGROUND

[0002] The humidification tank (water box) is one of important components of the breathing machine, the humidification tank contains a certain amount of water, and is communicated with an air outlet of the breathing machine host, air in the humidification tank after being pressurized by a blower enters the patient interface after being humidified through contact with water and a heating system of a heating device.

[0003] The breathing machine further comprises an air outlet pipe which is connected in communication with the air outlet of the humidification tank, and in the prior art, the connection position and connection mode of the air outlet pipe bring many inconveniences to the assembly and use of the breathing machine. For example, the Chinese patent CN104689442B discloses a portable breathing machine, which realizes the communication between the air outlet pipe and the air outlet of the water box by connecting the air outlet pipe with the breathing machine host. That is to say, the connection structure for connecting and fixing the air outlet pipe is arranged on the breathing machine host, and there is no connection between the air outlet pipe and the air outlet of the water box, only communication is realized, and even the sealing of the air outlet pipe and the air outlet can be realized only through the action of the breathing machine host.

[0004] In order to ensure that the air outlet pipe is installed in place and has sealing performance, not only is the installation position of the humidification tank required to be very high, but also the assembly steps of the whole machine are increased, and the use steps of the user are relatively cumbersome. Specifically, the humidification tank is first installed, and then the air outlet pipe is inserted into the insertion port on the breathing machine host. In this way, the air outlet pipe and the humidification tank cannot be assembled and disassembled and cleaned as a module, and in the process of manually assembling and disassembling the humidification tank by the user, the humidification tank will inevitably shake to a certain extent, and the air outlet is in an open state in this process. Therefore, when the humidification tank shakes, the water in the humidification tank is extremely easy to splash out of the air outlet, which not only pollutes the outer surfaces of the host and the humidification tank, increases the cleaning burden of the user, but also has the possibility of water splashing into the blower in the host, which increases the risk of damage to the blower by water.

[0005] Furthermore, in the above scheme, when the air outlet pipe is installed, the fixation of the air outlet pipe and the breathing machine host and the communication between the air outlet pipe and the air outlet of the humidification tank need to be completed, so that two steps of operation need to be performed on the air outlet pipe, and the installation and disassembly are time-consuming and laborious. CONTENT OF THE UTILITY MODEL

[0006] The application provides a humidification tank for a breathing machine to solve the problems of complicated installation steps of the air outlet pipe and the humidification tank and water leakage in the process of assembling and disassembling the humidification tank when the air outlet is in an open state.

[0007] The technical scheme adopted by the application is as follows:

[0008] A humidification tank for a breathing machine, comprising a tank body having a water storage cavity and a cover body, the tank body has a top wall, the top wall is provided with a water inlet opening, and the cover body can cover the water inlet opening; the cover body is provided with an air outlet opening, and the humidification tank further comprises an air outlet pipe connected in communication with the air outlet opening, the air outlet pipe is curvedly extended and rotationally connected with the cover body.

[0009] The end of the air outlet pipe is provided with a first clamping protrusion, the mouth of the air outlet opening is provided with a first matching protrusion, and the first clamping protrusion is clamped and fixed with the first matching protrusion; the first matching protrusion is annular in structure to surround the air outlet opening; or, the first matching protrusion is a plurality of and is spaced apart along the circumference of the air outlet opening.

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

[0011] The side of the cover body facing the water storage cavity is provided with a flow guide protrusion, and the flow guide protrusion extends along the circumference of the air outlet opening to surround at least part of the air outlet opening.

[0012] The tank body further has a plurality of side walls, and at least one side wall and the top wall are provided with a transition section extending obliquely to guide the liquid on the side wall to the top wall through the transition section and discharge the liquid from the water storage cavity through the water inlet opening when the tank body is inverted.

[0013] The mouth of the water inlet opening is provided with a limiting protrusion protruding inwardly of the water inlet opening, and the limiting protrusion is provided with a drainage opening.

[0014] The limiting protrusion has a matching groove, and the matching groove and the mouth of the water inlet opening cooperatively form the drainage opening.

[0015] The mouth of the water inlet opening is provided with a limiting protrusion protruding inwardly of the water inlet opening, the cover body has a matching protrusion protruding downwardly and extending into the water inlet opening, the matching protrusion can cooperate with the limiting protrusion, and the humidification tank further comprises a sealing ring located between the lower side of the matching protrusion and the limiting protrusion; or, the sealing ring is located between the outer circumferential side of the matching protrusion and the inner wall of the water inlet opening.

[0016] The top wall is further provided with a positioning protrusion surrounding the outer periphery of the water inlet opening.

[0017] The tank body further has a side wall, the side wall is provided with an air inlet opening, and the humidification tank further comprises an air inlet pipe connected in communication with the air inlet opening and extending into the water storage cavity, the air inlet pipe is curvedly or obliquely extended towards the lower side.

[0018] The air inlet pipe is fixed to the tank body in a non-detachable manner; or, the air inlet pipe is detachably connected with the tank body.

[0019] The end of the air inlet pipe is provided with a second clamping protrusion, the mouth of the air inlet opening is provided with a second matching protrusion, and the second clamping protrusion is clamped and fixed with the second matching protrusion.

[0020] The outer periphery of the air inlet is surrounded by a mounting protrusion, one of the side wall of the mounting protrusion and the outer wall of the air inlet pipe is provided with a fixing groove, the other is provided with a fixing protrusion matched with the fixing groove, the fixing groove is provided with a locking structure, and the fixing protrusion is provided with a matched structure; the air inlet pipe and the mounting protrusion can rotate relative to each other to make the locking structure and the matched structure cooperate with locking or unlocking.

[0021] One side of the fixing groove is further provided with a guide slide communicated with the fixing groove, and the guide slide extends in a spiral shape to the end of the mounting protrusion or the air inlet pipe.

[0022] The tank body has a first plug-in part and a first clamping part arranged opposite in the radial direction of the air inlet, and the end of the air inlet pipe has a second plug-in part and a second clamping part arranged opposite in the radial direction; the first plug-in part and the second plug-in part are plug-in matched to enable the air inlet pipe to swing around the plug-in part; and the first clamping part and the second clamping part are clamped and fixed.

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

[0024] The cover body includes a shell, the shell 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 machine of the breathing machine, the upper surface of the shell has a mounting sink, and the unlocking piece is floatingly mounted on the mounting sink; the unlocking piece can move to make the clamping structure disengage from the main machine of the breathing machine.

[0025] The unlocking piece includes an operation panel and an elastic rib position below the operation panel, the elastic rib position has a fixed end fixed with the operation panel and a free end extending obliquely towards the clamping structure, and the free end can swing around the fixed end to make the operation panel float up and down.

[0026] Thanks to the above technical solutions, the application has the following beneficial effects:

[0027] 1. In the application, the air outlet pipe is directly connected with the cover body of the humidification tank, the humidification tank with the air outlet pipe inserted can be assembled with the main machine of the breathing machine as a whole, and the insertion of the air outlet pipe is not required after the humidification tank is installed, which simplifies the installation and removal steps of the humidification tank, eliminates the disassembly and assembly steps of the air outlet pipe during the installation and removal of the humidification tank, and reduces the number of installation and removal of the air outlet pipe to a certain extent, thereby ensuring the connection stability and sealing performance of the air outlet pipe. In addition, since the air outlet pipe is connected to the cover body and is in butt joint with the air inlet of the humidification tank, the air inlet is not in a completely open state, thereby avoiding the risk of internal water leakage due to the shaking of the humidification tank, reducing the cleaning burden of the user, improving the use experience, and avoiding water splashing into the main machine, thereby ensuring the service life of the fan in the main machine.

[0028] In addition, the connection between the air outlet pipe and the cover body can ensure the stability and sealing of the connection, so that the air outlet pipe does not need to be connected to the main machine of the breathing machine, and the air outlet pipe and the humidification tank can form a separate module, which can be installed on or detached from the main machine together with the humidification tank.

[0029] In addition, the air outlet is arranged on the cover body of the humidification tank, and the air outlet pipe is rotatably connected to the cover body, so that the air outlet pipe can be detached from the tank body together with the cover body, and the cover body and the air outlet pipe can be directly cleaned. The user does not need to additionally detach the air outlet pipe, thereby reducing the number of times of assembling and disassembling the air outlet pipe and ensuring the stability and sealing of the connection.

[0030] 2. As a preferred embodiment of the present application, the cover body comprises a body and a lifting portion upwardly protruding relative to the body, and the air outlet is arranged on the lifting portion. The cover body is arranged on the top wall of the tank body, and when the water storage cavity contains water, the height difference between the cover body and the liquid surface is large, thereby reducing the probability of water splashing to the cover body and leaking from the air outlet. The cover body further comprises a lifting portion upwardly protruding, and the air outlet is arranged on the lifting portion, thereby further increasing the height of the position of the air outlet and making the position of the air outlet farther away from the liquid surface, thereby improving the anti-leakage effect. In addition, when the humidification tank is inserted into the main machine of the breathing machine, the protruding lifting portion can fill the gap between the outer surface of the humidification tank and the outer surface of the main machine to a certain extent, so that the outer surface of the protruding portion is basically flush with the outer surface of the main machine, thereby making the appearance of the breathing machine more uniform and flat, reducing the gap, and improving the appearance and use feel.

[0031] 3. In a preferred embodiment of this application, the tank also has multiple side walls, at least one of which has an inclined transition section between it and the top wall. This transition section guides liquid on the side walls to the top wall and discharges it from the water inlet into the storage chamber when the tank is inverted. Typically, the water inlet is located in a localized area of ​​the top wall (e.g., the center of the top wall), forming a corner between the top wall and the side wall. Therefore, when emptying water from the storage chamber, even if the user tilts or inverts the tank, although most of the water can be poured out from the inlet, a small amount will still accumulate at the corner between the top and side walls. Therefore, in the prior art, an additional drain hole is often provided in the tank, sealed with a plug, and opened when draining. This method not only requires additional drilling of holes in the tank, increasing processing and manufacturing difficulty and cost, but also increases the sealing requirements of the tank. If the drain hole is not properly sealed, water leakage will still occur. In this embodiment, by providing an inclined transition section between the top wall and the side wall, the corner between the original top wall and the side wall is transformed into an inclined wall. This allows water on the side wall to flow towards the water inlet on the top wall through the transition section when the tank is tilted or inverted, preventing water from accumulating between the top wall and the side wall. This also allows water in the storage chamber to be discharged from the water inlet as much as possible, thus improving pouring efficiency and ease of use, while eliminating the need for additional drainage holes and reducing manufacturing difficulty.

[0032] 4. In a preferred embodiment of this application, the edge of the water inlet is provided with a limiting rib protruding towards the inside of the water inlet, and the limiting rib is provided with a drain outlet. The limiting rib's placement on the edge of the water inlet reduces the conducting area of ​​the water inlet, which may affect the outflow of water when it is poured out. Therefore, providing a drain outlet on the limiting rib brings the drain outlet closer to the transition section, allowing water flowing through the transition section to the top wall to flow out through the drain outlet, reducing water accumulation in the water storage chamber.

[0033] 5. In a preferred embodiment of this application, the rim of the water inlet is provided with a limiting rib protruding towards the inside of the water inlet, and the cover has a mating rib protruding downward and extending into the inside of the water inlet, which can mate with the limiting rib. The limiting rib surrounds the water inlet, which not only limits the installation of the cover, preventing the cover from excessively entering the water inlet, but also ensures a good closing state and sealing. At the same time, after the humidification tank is installed, the pressure of the ventilator main unit on the cover increases the contact force between it and the limiting rib. Thus, on the one hand, the cover is squeezed by the limiting rib and the pressing protrusion to maintain a stable position and a closing effect; on the other hand, the increased pressure between the cover and the limiting rib also improves the sealing performance between the two, preventing water leakage inside the tank. Attached Figure Description

[0034] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0035] Figure 1 This is a schematic diagram of the structure of a humidification tank according to one embodiment of this application;

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

[0037] Figure 3 This is an exploded view of the structure of a humidification tank according to one embodiment of this application;

[0038] Figure 4 This is a schematic diagram of the structure of the cover according to one embodiment of this application;

[0039] Figure 5 for Figure 4 Schematic diagram of the structure on the lower side of the middle cover;

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

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

[0042] Figure 8 This is an exploded view of the cover structure according to one embodiment of this application;

[0043] Figure 9 This is a schematic diagram of the unlocking component according to one embodiment of this application;

[0044] Figure 10 for Figure 9 A structural schematic diagram of the unlocking component from another perspective;

[0045] Figure 11 This is a schematic diagram of the tank structure according to one embodiment of this application;

[0046] Figure 12 for Figure 11 A magnified view of area B in the middle;

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

[0048] Figure 14 This is a schematic diagram of the internal structure of the tank according to one embodiment of this application;

[0049] Figure 15 for Figure 14Enlarged view of region C;

[0050] Figure 16 For Figure 14 Structural schematic view of the middle tank body, wherein the air inlet pipe is not installed;

[0051] Figure 17 For Figure 16 Enlarged view of region D;

[0052] Figure 18 Structural schematic view of the air inlet pipe under an embodiment of the present application;

[0053] Figure 19 Structural schematic view of the internal structure of the tank body under another embodiment of the present application;

[0054] Figure 20 For Figure 19 Cross-sectional view of the tank body;

[0055] Figure 21 Assembly schematic view of the breathing machine under an embodiment of the present application;

[0056] Figure 22 Structural schematic view of the humidification tank under another embodiment of the present application;

[0057] Figure 23 For Figure 22 Structural exploded view of the humidification tank.

[0058] Wherein:

[0059] 1 tank body; 11 air inlet; 12 water storage cavity; 13 water filling 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 slide; 17 first plug-in part; 18 first clamping part; 19 guide convex strip;

[0060] 2 cover body; 21 lifting part; 22 flow guide convex rib; 23 gripping part; 24 shell; 241 installation sunken table; 242 positioning convex; 243 guide slide groove; 244 plug-in groove; 25 unlocking piece; 251 clamping structure; 252 anti-skid line; 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 sunken groove;

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

[0062] 4 intake pipe; 41 fixing protrusion; 42 matching structure; 43 second plug-in part; 44 second clamping part;

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

[0064] 6 locking member; 61 clamping hook; 62 protection protrusion; 63 protruding part; 64 notch; 65 guide slot. DETAILED DESCRIPTION

[0065] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0066] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details, other than in the examples, and that the scope of the present application is not, therefore, to be limited to these details.

[0067] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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 particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0068] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, or communication; can be directly connected, or indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0069] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "embodiment", "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 the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] As Figures 1 to 3 shown, a humidification tank for a breathing machine, comprising a tank body 1 having a water storage cavity 12 and a cover body 2, the tank body 1 has a top wall, the top wall is provided with a water inlet 13, the cover body 2 can cover the water inlet 13; the cover body 2 is provided with an air outlet 28, and the humidification tank further comprises an air outlet pipe 3 connected with the air outlet 28 in communication, the air outlet pipe 3 is curvedly extended and rotationally connected with the cover body 2.

[0071] In this application, the air outlet pipe 3 is directly rotationally connected with the cover body 2 of the humidification tank, the humidification tank with the air outlet pipe 3 inserted can be assembled with the main machine 5 of the breathing machine as a whole, without the need of inserting the air outlet pipe 3 after the humidification tank is installed, which not only simplifies the installation and removal steps of the humidification tank, but also eliminates the disassembly step of the air outlet pipe 3 during the installation and removal of the humidification tank, and to some extent, reduces the installation and removal frequency of the air outlet pipe 3, and ensures the connection stability and sealing performance of the air outlet pipe 3. In addition, since the air outlet pipe 3 is connected to the cover body 2 and keeps in alignment with the air outlet 28 of the humidification tank, the air outlet 28 will not be in a completely open state, thereby avoiding the risk of internal water leakage from the air outlet 28 due to the shaking of the humidification tank, reducing the cleaning burden of the user, improving the use experience, and avoiding water splashing into the main machine 5, thereby ensuring the service life of the fan inside the main machine 5.

[0072] In addition, the connection of the air outlet pipe 3 and the cover body 2 can ensure the connection stability and sealing performance of the air outlet pipe 3, so there is no need to connect the air outlet pipe 3 with the main machine 5 of the breathing machine, so that the air outlet pipe 3 can form a separate module with the humidification tank, and can be installed on or removed from the main machine 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 orientation of the air outlet pipe 3 can be changed, thereby facilitating the connection with the user's inhalation pipeline.

[0073] Furthermore, as Figure 4 shown, the air outlet 28 is arranged on the cover body 2 of the humidification tank, and the air outlet pipe 3 is rotationally connected with 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 the cover body 2 and the air outlet pipe 3 can be directly cleaned, without the need for the user to additionally remove the air outlet pipe 3, thereby reducing the installation and removal frequency of the air outlet pipe 3, and ensuring the connection stability and sealing performance.

[0074] It should be noted that in this 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 to 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's installation steps of the air outlet pipe 3, and to avoid the problem of reduced sealing performance caused by frequent removal of the air outlet pipe 3.

[0075] As a preferred, the air outlet pipe 3 is detachably connected to the cover 2. Specifically, in one embodiment, as shown in Figure 6 、 Figure 7 the end of the air outlet pipe 3 is provided with a first clamping protrusion 32, and the edge of the air outlet 28 is provided with a first matching protrusion 282, the first clamping protrusion 32 is clamped and fixed with the first matching protrusion 282.

[0076] As shown in Figure 6 、 Figure 7 the air outlet pipe 3 is inserted into the air outlet 28 from the outside of the humidification tank, the first clamping protrusion 32 at the end of the air outlet pipe 3 reaches below the first matching protrusion 282 of the edge of the air outlet 28, and the two form a clamping, the first matching protrusion 282 is above the first clamping protrusion 32, and the first clamping protrusion 32 is clamped and fixed with the first matching protrusion 282.

[0077] Specifically, in one embodiment, the first matching protrusion 282 is annular 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 protrusion 32 interferes with the first matching protrusion 282, at which time the user applies a downward pressing force to make the first clamping protrusion 32 slide through the first matching protrusion 282 to the lower side of the first matching protrusion 282 to complete the clamping.

[0078] Preferably, as shown in Figure 7 the lower end of the first clamping protrusion 32 and / or the upper surface of the first matching protrusion 282 is provided with a guide slope or arc surface to enable the first clamping protrusion 32 to smoothly slide through the first matching protrusion 282 when the user applies a downward pressure.

[0079] In another embodiment, the first matching protrusion 282 is a plurality of and is spaced along the circumference of the air outlet 28. On the basis of ensuring the stability of the cooperation with the first clamping protrusion 32, the use of the first matching protrusion 282 can be reduced to save costs.

[0080] Preferably, the first clamping protrusion 32 protrudes outward along the radial direction of the air outlet pipe 3, wherein the first clamping protrusion 32 can surround the air outlet pipe 3 to form a clamping with the first matching protrusion 282 in a circumferential circle. The first clamping protrusion 32 can also be a plurality of and spaced along the circumference. When the first matching protrusion 282 is discontinuous, the first clamping protrusion 32 passes through the opening between the adjacent two first matching protrusions 282, and then the first clamping protrusion 32 is aligned with the opening to pass through the first matching protrusion 282, and then the air outlet pipe 3 is rotated to make the first clamping protrusion 32 and the first matching protrusion 282 misaligned up and down to realize the clamping.

[0081] Preferably, as shown in Figure 7As shown, the mouth of the air outlet 28 protrudes towards the inside of the water storage cavity 12 to form a fitting wall 281, and a first fitting convex rib 282 is arranged at the lower end of the fitting wall 281. A first sealing rubber ring 31 is further arranged between the outer circumferential side of the air outlet pipe 3 and the fitting wall 281 to seal the gap between the air outlet pipe 3 and the air outlet 28. As shown, Figure 7 As shown, a receiving groove 33 for accommodating the first sealing rubber ring 31 can be arranged on the outer wall of the air outlet pipe 3 and / or the fitting wall 281 to limit the first sealing rubber ring 31 and ensure its position stability.

[0082] As shown, Figure 7 The outer wall of the cover body 2 is further provided with a limiting groove 283 at the air outlet 28, and the outer circumferential side of the air outlet pipe 3 is provided with an outwardly protruding limiting convex rib 34 which 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, improving the appearance flatness. On the other hand, the limiting convex rib 34 can limit the air outlet pipe 3 towards the inside of the water storage cavity 12, preventing the air outlet pipe 3 from excessively extending into the water storage cavity 12.

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

[0084] As a preferred embodiment of the present application, as shown, Figure 1 , Figure 2 , Figure 3 As shown, the cover body 2 includes a body and a raised portion 21 which is raised upwards relative to the body, and the air outlet 28 is arranged on the raised portion 21.

[0085] The cover body 2 is arranged on the top wall of the tank body 1. When the water storage cavity 12 contains water, the height difference between the cover body 2 and the liquid surface is large, thereby reducing the probability of water splashing out of the air outlet 28. The cover body 2 is further provided with a raised portion 21 which is raised upwards, and the air outlet 28 is arranged on the raised portion 21, which further increases the height of the position of the air outlet 28, making it farther away from the liquid surface and improving the anti-leakage effect. In addition, when the humidification tank is inserted into the breathing machine main machine 5, the raised raised portion 21 can to some extent fill the gap between the outer surface of the humidification tank and the outer surface of the main machine 5, so that the outer surface of the raised portion is basically flush with the outer surface of the main machine 5, making the appearance of the breathing machine more uniform and smooth, reducing the gap and improving the appearance and use feel.

[0086] Specifically, as shown, Figure 21As shown, the main unit 5 of the ventilator is provided with a insertion cavity 51, into which at least a portion of the humidification tank can be inserted. The cavity wall of the insertion cavity 51 is provided with a clearance notch, and the lifting part 21 is located within the clearance notch, allowing the outlet tube 3 to extend out of the main unit 5 through the clearance notch. The outer surface of the lifting part 21 is flush with the outer surface of the main unit 5.

[0087] Preferably, such as Figure 5 , Figure 6 As shown, the cover 2 has a guide rib 22 protruding on the side facing the water storage cavity 12. The guide rib 22 extends circumferentially along the air outlet 28 to surround at least a portion of the air outlet 28.

[0088] The guide rib 22 surrounds at least part of the outer periphery of the air outlet 28, which can block the water in the water storage chamber 12, especially when the humidification tank shakes or tilts, to prevent water from flowing out of the air outlet 28 to the patient end. 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, such as Figure 5 As shown, the guide ribs 22 are two sections symmetrically arranged along the center of the air outlet 28. Both guide ribs 22 have arc-shaped sections that surround the outer periphery of the air outlet 28. The guide ribs 22 also have vertical sections that are connected to other ribs on the inner side of the cover 2 to improve the structural strength of the guide ribs 22.

[0090] As a preferred embodiment of this application, such as Figure 3 , Figure 11 , Figure 12 , Figure 13 As shown, the tank 1 also has multiple side walls, and at least one side wall is provided with an inclined transition section 14 between it and the top wall so that when the tank 1 is inverted, the liquid on the side wall is guided to the top wall through the transition section 14 and discharged from the water inlet 13 into the water storage chamber 12.

[0091] Typically, the water inlet 13 is located in a localized area of ​​the top wall (e.g., the center of the top wall), forming a corner between the top and side walls. Therefore, when emptying water from the storage chamber 12, even if the user tilts or inverts the tank 1, most of the water will still drain from the inlet 13, leaving a small amount accumulating in the corner between the top and side walls. Therefore, in existing technology, an additional drain hole is often provided in the tank 1, sealed with a plug, which is opened during drainage. This method not only requires additional drilling of holes in the tank 1, increasing processing and manufacturing difficulty and cost, but also increases the sealing requirements of the tank 1. If the drain hole is not properly sealed, water leakage will still occur.

[0092] In this embodiment, by setting the inclined transition section 14 between the top wall and the side wall, the corner between the top wall and the side wall is changed into an inclined inclined wall, so that when the tank body 1 is inclined or inverted, the water on the side wall can flow to the water inlet 13 on the top wall through the guidance of the transition section 14, and cannot be accumulated between the top wall and the side wall. Further, the water in the water storage cavity 12 can be discharged from the water inlet 13 as much as possible, thereby improving the water discharge efficiency and use convenience, and without additional processing of the drain hole, reducing the processing difficulty.

[0093] It can be understood that the "inversion of the tank body 1" described in the present application does not only mean the state of turning the tank body 1 by 180°, but as long as the tank body 1 of the humidification tank is inclined to be in a water pouring state, as shown in Figure 13 , the lowest part of the top wall is lower than the lowest part of the side wall, at this time, the tank body 1 can be regarded as being inverted, and the water in the tank body 1 can flow from the side wall to the top wall.

[0094] In a preferred embodiment of the present embodiment, as shown in Figure 1 , Figure 3 , Figure 11 , when the humidification tank is installed on the host machine 5 of the breathing machine, the side wall on the side facing the host machine 5 is provided with an air inlet 11, which is used for the airflow in the host machine 5 to enter the inside of the humidification tank to be humidified. The side wall has a transition section 14 between the top wall. Of course, the transition section 14 can also be arranged between the side wall and the top wall in other directions, or transition sections 14 can be arranged between each side wall and the top wall, so that the water in the tank body 1 can be smoothly poured out regardless of the direction in which the tank body 1 is tilted.

[0095] Preferably, as shown in Figure 3 , Figure 11 , the inner wall of the transition section 14 is a slope structure, of course, it can also be an arc 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] Further, as shown in Figure 11 , Figure 12 , the mouth of the water inlet 13 is provided with a limiting rib 133 protruding towards the inside of the water inlet 13, and the limiting rib 133 is provided with a drain hole 15.

[0097] The limiting rib 133 is arranged at the mouth of the water inlet 13, so that the conduction area of the water inlet 13 is reduced, which may affect the outflow of water when the water in the water inlet 13 is poured out. Therefore, the drain hole 15 is arranged on the limiting rib 133, so that the position of the drain hole 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 hole 15, reducing the accumulation of water in the water storage cavity 12.

[0098] Further, as shown in Figure 12As shown, the limiting rib 133 has a matching groove which matches with the edge of the water injection port 13 to form the water drainage port 15.

[0099] The matching groove matches with the inner wall of the water injection port 13 to form the water drainage port 15, so that the position of the water drainage port 15 is closer to the edge of the water injection port 13, and thus the water inside the water storage cavity 12 can flow to the water drainage port 15 as soon as possible, reducing the internal accumulation.

[0100] Preferably, as shown in Figure 11 , Figure 12 , the water injection port 13 is square, and the water drainage port 15 is located at the corner between the two edges of the water injection port 13. Of course, the water drainage port 15 can also be provided on the edge of the water injection port 13, or the water drainage port 15 can be multiple and be provided at intervals along the circumference of the water injection port 13, which is not limited here.

[0101] Preferably, as shown in Figure 4 , Figure 6 , Figure 11 , the edge of the water injection port 13 is provided with a limiting rib 133 protruding towards the inside of the water injection port 13, and the cover body 2 has a matching convex rib 27 protruding downwards and extending into the inside of the water injection port 13, which can match with the limiting rib 133.

[0102] The limiting rib 133 surrounds the water injection port 13, which not only limits the installation of the cover body 2, so that the cover body 2 does not excessively enter the inside of the water injection port 13, ensuring good closing state and sealing performance. At the same time, after the humidification tank is installed, the cover body 2 is pressed by the main machine 5 of the breathing machine, which increases the abutting force between the cover body 2 and the limiting rib 133, so that on the one hand, the cover body 2 is extruded by the limiting rib 133 and the pressing convex to keep the position stable and the closing effect, and on the other hand, the extrusion force between the cover body 2 and the limiting rib 133 is increased, which also improves the sealing performance between them, avoiding the leakage of water inside the tank body 1.

[0103] Further, the humidification tank also includes a sealing ring 26, wherein the position of the sealing ring 26 is not limited in the present application, which can be located between the lower side of the matching convex rib 27 and the limiting rib 133, or as shown in Figure 6As shown, the sealing ring 26 is located between the outer periphery of the matching convex rib 27 and the inner wall of the water inlet 13. When the sealing ring 26 is located between the lower side of the matching convex rib 27 and the limiting rib 133, the cover 2 is closed to the water inlet 13, and the sealing ring 26 is deformed by being pressed up and down under the pressure, thereby sealing the gap. When the humidification tank is inserted into the main machine 5 of the breathing machine, the main machine 5 further applies a downward pressure to the cover 2, so that the sealing ring 26 is further pressed to improve the sealing effect. When the sealing ring 26 is located between the outer periphery of the matching convex rib 27 and the edge of the water inlet 13, the matching convex rib 27 and the inner wall of the water inlet 13 laterally press the sealing ring 26 to deform and seal, and increase the friction resistance when the cover 2 moves up and down, thereby improving the closing stability of the cover 2.

[0104] Preferably, as shown in the drawings, Figure 3 The top wall is further provided with a positioning convex rib 131 surrounding the outer periphery of the water inlet 13.

[0105] The positioning convex rib 131 is provided on the outer side of the top wall and protrudes upward, which can position the installation of the cover 2 and improve the convenience of the user when closing the cover 2. At the same time, when the cover 2 is removed, the water inlet 13 is opened, and the positioning convex rib 131 can also block the water splashed inside the water inlet 13. The positioning convex rib 131 can also guide the water flowing out of the water outlet 15 to flow along the positioning convex rib 131 and drip, without flowing to other areas of the top wall.

[0106] As shown in the drawings, Figure 3 , Figure 5 The positioning convex rib 131 has an avoiding opening 132, and the cover 2 has a holding part 23 extending out of the positioning convex rib 131 from the avoiding opening 132, so as to facilitate the user to remove the cover 2.

[0107] In a preferred embodiment, as shown in the drawings, Figure 2 The tank body 1 further has a side wall, and the side wall is provided with an air inlet 11. The humidification tank further comprises an air inlet pipe 4 connected to the air inlet 11 and extending into the water storage cavity 12, and the air inlet pipe 4 extends downwardly and obliquely.

[0108] The airflow blown out of the air blower in the main machine 5 enters the water storage cavity 12 through the air inlet 11, is guided by the downwardly extending air inlet pipe 4, contacts the water in the water storage cavity 12 to complete humidification, and is discharged from the upper air outlet 28. The downwardly extending air inlet pipe 4 can make the gas flow towards the liquid surface, thereby ensuring complete contact between the gas and the water and improving the humidification effect. At the same time, when the humidification tank is slightly tilted, the water in the water storage cavity 12 is prevented from flowing into the main machine 5 through the air inlet pipe 4.

[0109] Specifically, the end of the air inlet pipe 4 can be bent downward, or the air inlet pipe 4 can be inclined downward as a whole to be closer to the liquid surface in the water storage cavity 12. The outlet of the air inlet pipe 4 is higher than the liquid surface in the water storage cavity 12.

[0110] The application does not limit the assembly mode of the air inlet pipe 4 and the tank body 1. In an embodiment, the air inlet pipe 4 is fixed to the tank body 1 in a non-detachable manner to ensure the stability and sealing of the connection and avoid the sealing degradation caused by frequent disassembly. In another embodiment, the air inlet pipe 4 is detachably connected to the tank body 1 to enable the user to conveniently disassemble the air inlet pipe 4 for cleaning.

[0111] Further, the application does not limit the connection mode of the air inlet pipe 4 and the tank body 1. In a specific example, as shown in Figure 2 , the end of the air inlet pipe 4 is provided with a second clamping protrusion, the mouth of the air inlet port 11 is provided with a second matching protrusion, and the second clamping protrusion is clamped and fixed with the second matching protrusion. In this example, the air inlet pipe 4 and the air inlet port 11 of the tank body 1 are fixed by clamping, which is simple and convenient to assemble and disassemble. The clamping and fixing structure and the connection mode of the air inlet pipe 4 and the tank body 1 can refer to the clamping and fixing structure and the connection mode of the air outlet pipe 3 and the tank body 1 described above, which will not be repeated here.

[0112] In another specific example, as shown in Figures 14 to 18 , the outer periphery of the air inlet port 11 is surrounded by a mounting protrusion 16, one of the side wall of the mounting protrusion 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 protrusion 41 matched with the fixing groove 161. The fixing groove 161 is provided with a locking structure 162, and the fixing protrusion 41 is provided with a matching structure 42. The air inlet pipe 4 and the mounting protrusion 16 can be relatively rotated to make the locking structure 162 and the matching structure 42 match or unlock.

[0113] After the fixing protrusion 41 and the fixing groove 161 are matched, the air inlet pipe 4 can be rotated relative to the tank body 1, so that the fixing protrusion 41 rotates in the fixing groove 161. When the air inlet pipe 4 and the tank body 1 are relatively rotated to the matching of the locking structure 162 and the matching structure 42, the locking is completed. When the air inlet pipe 4 and the tank body 1 are rotated to the unlocking of the locking structure 162 and the matching structure 42, the air inlet pipe 4 and the tank body 1 are unlocked, and the air inlet pipe 4 can be disassembled.

[0114] As shown in Figure 15 , Figure 18 , the fixing groove 161 is arranged on the mounting protrusion 16, and the fixing protrusion 41 is arranged on the air inlet pipe 4. Of course, the positions of the two can be interchanged.

[0115] Specifically, as shown in Figure 15 , Figure 18 , the locking structure 162 is arranged on the fixing groove 161, and the matching structure 42 is arranged on the fixing protrusion 41.As shown, the locking structure 162 comprises a locking protrusion arranged in the fixing groove 161, and the cooperating structure 42 comprises a locking groove arranged in the fixing protrusion 41, and the locking is achieved when the locking protrusion is located in the locking groove, and the unlocking is achieved when the locking protrusion is out of the locking groove. Of course, the locking structure 162 can also be arranged as a groove structure, and the cooperating structure 42 is arranged as a protrusion structure, which is not limited herein. Alternatively, the locking structure 162 and the cooperating structure 42 can both be arranged as protrusion structures, and the locking is achieved when the protrusion structure on the fixing protrusion 41 is located on one side of the protrusion structure in the fixing groove 161, and the unlocking is achieved when the protrusion structure on the fixing protrusion 41 is located on the other side of the protrusion structure in the fixing groove 161.

[0116] Further, as shown in Figure 16 , Figure 17 , one side of the fixing groove 161 is further provided with a guide slide 163 in communication with the fixing groove 161, and the guide slide 163 extends to the end of the mounting protrusion 16 or the air inlet pipe 4 in a spiral shape.

[0117] The guide slide 163 can guide the installation of the air inlet pipe 4, the fixing protrusion 41 is first arranged in the guide slide 163, and then the air inlet pipe 4 is rotated to move the fixing protrusion 41 along the guide slide 163 to the fixing groove 161, until the air inlet pipe 4 and the tank body 1 are locked. When disassembling the air inlet pipe 4, the air inlet pipe 4 is reversely rotated.

[0118] Preferably, as shown in Figure 18 , the fixing protrusion 41 is provided with a guide inclined surface at both ends. The fixing protrusion 41 and the fixing groove 161 are both arranged on both sides of the air inlet 11 in a radial direction, so that the air inlet pipe 4 is fixed on both sides of the tank body 1 at the same time, and the fixing effect is improved.

[0119] In another specific example, as shown in Figure 19 , Figure 20 , the tank body 1 has a first plug-in part 17 and a first clamping part 18 arranged in a radial direction opposite to each other, and the end of the air inlet pipe 4 has a second plug-in part 43 and a second clamping part 44 arranged in a radial direction opposite to each other, the first plug-in part 17 and the second plug-in part 43 are plug-in matched, so that the air inlet pipe 4 can swing around the plug-in part, and the first clamping part 18 and the second clamping part 44 are clamped and fixed.

[0120] In this example, as shown in Figure 20 , when the air inlet pipe 4 is installed, the first plug-in part 17 and the second plug-in part 43 are first plug-in matched to form a simple fixing on one side of the end of the air inlet pipe 4, and the air inlet pipe 4 can swing around the plug-in part at this time, and then the first clamping part 18 and the second clamping part 44 on the other side are clamped and fixed, to realize the fixed connection between the air inlet pipe 4 and the tank body 1.

[0121] Specifically, asFigure 19 , Figure 20 As shown, the first plug-in part 17 can be a protruding structure, the second plug-in part 43 includes a plug interface that engages with the protruding structure, and the first snap-fit ​​part 18 and / or the second snap-fit ​​part 44 are provided with snap hooks.

[0122] Of course, in addition to the three examples mentioned above, the air inlet pipe 4 can also be connected to the tank body 1 in other ways, such as threaded connection, etc., which are not limited here. Regardless of the method used, a second sealing ring can be provided on the outer periphery of the air inlet pipe 4 to ensure a sealed fit between the air inlet pipe 4 and the air inlet 11. Furthermore, an annular groove for limiting the second sealing ring can be provided at the end of the air inlet pipe 4.

[0123] As a preferred embodiment of this application, such as Figure 4 , Figure 8 As shown, the cover 2 includes a housing 24 and an unlocking member 25. The housing 24 covers the water inlet 13. The unlocking member 25 has a snap-fit ​​structure 251 for snapping and fixing with the ventilator main unit 5. The upper surface of the housing 24 has a mounting platform 241. The unlocking member 25 is floatingly mounted on the mounting platform 241. The unlocking member 25 can move to disengage the snap-fit ​​structure 251 from the ventilator main unit 5.

[0124] In this embodiment, when disassembling the humidification tank, the user can manually drive the unlocking component 25 to elastically move and unlock it from the main unit 5.

[0125] Specifically, in one embodiment, such as Figure 4 As shown, the locking structure 251 is a hook, and the main unit 5 of the ventilator is provided with a slot. When the humidifier canister is installed into the main unit 5, the hook extends into the slot to achieve a locking and fixing, and at the same time locks the humidifier canister, preventing it from being removed from the main unit 5. The unlocking component 25 is floatingly disposed within the mounting platform 241. When the user drives the unlocking component 25 to move by pressing or other means, the locking structure 251 moves together with the unlocking component 25, thereby disengaging from the main unit 5 (the hook disengages from the slot). At this time, the humidifier canister is unlocked from the main unit 5, and the user can remove the humidifier canister from the main unit 5.

[0126] In this embodiment, although the unlocking element 25 allows the user to directly control the movement of the locking structure 251 by controlling the unlocking element 25, making unlocking easier, this embodiment does not limit the user's operating method. The above is only one example of an operating method. For example, in another embodiment, the locking structure 251 and the fixing structure of the host 5 are provided with a guide transition surface, so that during the insertion and removal of the humidification tank, even if the user does not press the unlocking element 25, the locking structure 251 can still elastically move under the squeezing force of the fixing structure to complete the unlocking.

[0127] The connection mode of the unlocking member 25 and the shell 24 is not limited in the embodiment, and in one embodiment, an elastic member is arranged between the unlocking member 25 and the shell 24. The elastic member can be a spring, a silica gel member or any other elastic component, so that the unlocking member 25 can float under the elastic force of the elastic member.

[0128] In another embodiment, as shown in Figures 8 to 10 , the unlocking member 25 comprises an operation panel 253 and an elastic rib 254 located below the operation panel 253. The elastic rib 254 has a fixed end 2541 fixed to the operation panel 253 and a free end 2542 extending obliquely towards the clamping structure 251. The free end 2542 can swing around the fixed end 2541 to make the operation panel 253 float up and down.

[0129] Specifically, as shown in Figure 9 , Figure 10 , the clamping structure 251 is located at one end of the operation panel 253, and the elastic rib 254 extends obliquely towards the end where the clamping structure 251 is located. Therefore, when the user presses the operation panel 253, the end where the clamping structure 251 is located will float down, and the clamping structure 251 will be disengaged from the host 5, thereby completing the unlocking.

[0130] Preferably, as shown in Figure 8 , the mounting sink 241 is provided with a positioning protrusion 242, and the free end 2542 of the elastic rib 254 is provided with a positioning opening 255 matched with the positioning protrusion 242. The mounting sink 241 is further provided with guide sliding grooves 243 located on both sides of the elastic rib 254. The guide sliding grooves 243 can be matched with both ends of the elastic rib 254 to guide the installation of the unlocking member 25.

[0131] As shown in Figure 8 , the positioning protrusion 242 is provided with inverted L-shaped ribs on both sides, and the opposite sides of the two inverted L-shaped ribs constitute the guide sliding grooves 243. The guide sliding grooves 243 extend horizontally, and when the unlocking member 25 is installed, the two ends of the elastic rib 254 are located in the guide sliding grooves 243 respectively, and move horizontally under the guidance of the inverted L-shaped ribs until the positioning protrusion 242 and the positioning opening 255 are matched, so that the unlocking member 25 is fixed to the shell 24.

[0132] Preferably, as shown in Figure 8 , Figure 9 , Figure 10 , 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. The two are plug-in matched to limit the relative position of the unlocking member 25 and the shell 24.

[0133] As shown in Figure 8 , Figure 9As shown, the operation panel 253 is provided with anti-slip texture 252 to improve the feel of the user during operation and enhance the user experience.

[0134] like Figure 1 As shown, in a direction perpendicular to the insertion direction of the humidification tank, the length of the unlocking member 25 is greater than the length of the cover 2. The snap-fit ​​structures 251 are located on both sides of the unlocking member 25 and are exposed on both sides of the cover 2. The snap-fit ​​structures 251 are exposed on the cover 2, which allows for easier and more direct engagement with the main unit 5 and prevents interference with the cover 2, thus improving the structural compactness.

[0135] In another implementation, such as Figure 22 , Figure 23 As shown, the canister 1 or the cover 2 is equipped with a locking element 6. The locking element 6 can move elastically relative to the outer shell 1 to lock or unlock with the main unit 5 of the ventilator. During the insertion and removal of the humidifier canister, the locking element 6 is abutted and moves automatically, thereby unlocking with the main unit 5. That is to say, taking the removal of the humidifier canister as an example, the user only needs to apply a force opposite to the insertion direction to the humidifier canister, and the locking element 6 can be abutted by the unlocking structure on the main unit 5 and move elastically, thereby loosening from the fixing structure on the main unit 5.

[0136] Specifically, the locking element 6 extends along the insertion direction of the humidification tank, with one end fixed to the humidification tank and the other end free, and a hook 61 is provided on the free end.

[0137] Preferably, such as Figure 22 , Figure 23 As shown, the locking hook 61 and / or the fixing structure of the main unit 5 are provided with a guide transition surface, which can be an inclined surface, an arc surface or other irregular curved surface. During the insertion and removal of the humidification tank, the locking hook 61 can contact the fixing structure through the guide transition surface, thereby generating a force perpendicular to the insertion direction, causing the locking member 6 to move elastically and complete the locking with the fixing structure, or release the locking with the fixing structure.

[0138] Among them, such as Figure 22 , Figure 23 As shown, the locking element 6 can be installed on the tank body 1 or on the cover body 2.

[0139] Preferably, such as Figure 22 , Figure 23 As shown, the top wall of the outer casing 1 includes a main body and a raised portion 63 that rises upward from the main body. The locking member 6 is fixed to the side wall of the raised portion 63 so that there is a clearance between it and the main body. 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, and a gap is formed between the lower side of the locking member 6 and the body. The locking member 6 can swing up and down. Since the locking member 6 is arranged on the raised portion 63, the locking member 6 protrudes from the outer surface of the shell 1. When the humidification tank is detached from the main machine 5, the protruding locking member 6 is easy to collide with other components, and the locking member 6 may be deformed or broken. The protective ribs 62 are arranged on the body, and the protective ribs 62 are arranged on both sides of the locking member 6. The protective ribs 62 can protect the locking member 6, so that foreign matters cannot directly contact the locking member 6. The upper edge of the protective ribs 62 is not higher than the upper edge of the locking member 6, and the locking hook 61 of the locking member 6 can directly contact the main machine 5 to complete the clamping cooperation.

[0141] Specifically, as shown in Figure 22 , Figure 23 , the protective ribs 62 on both sides form a deformation cavity, and the locking member 6 can move into the deformation cavity. The free end of the locking member 6 is provided with an upward protruding locking hook 61. The upper edge of the protective rib 62 is flush with or lower than the top end of the locking hook 61, so that the locking hook 61 can normally cooperate with the fixing structure on the main machine 5.

[0142] Specifically, the fixing structure is a cooperation hook protruding towards the inside of the insertion cavity 51, which can be clamped and fixed with the locking hook 61 of the locking member 6. Of course, the fixing structure can also be a cooperation groove or other structure that can cooperate with the locking hook 61 of the locking member 6, which is not limited here.

[0143] As shown in Figure 1 , Figure 22 , the humidification tank includes a holding section and an insertion section. The cross-sectional area of the holding section is larger than that of the insertion section, and a stepped surface is formed between the two sections. An avoiding opening 64 is formed on the cover 2. When the cover 2 is installed on the tank body 1, one end surface of the avoiding opening 64 is flush with the stepped surface.

[0144] Preferably, as shown in Figure 1 , Figure 22 , Figure 23 , the inner wall of the insertion cavity 51 of the main machine 5 is provided with a guide rib, and the cover 2 is further provided with a guide groove 65 matched with the guide rib. The avoiding 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 can cooperate to guide the installation of the humidification tank. Preferably, the locking member 6 or the clamping structure 251 is arranged in the avoiding opening 64, so that after the humidification tank is inserted in place, the locking member 6 or the clamping structure 251 cooperates with the main machine 5.

[0145] Preferably, as shown in Figure 21 , the humidification tank is further provided with a guide rib 19, which is used to cooperate with the guide structure on the main machine 5, and is used to guide the movement of the humidification tank during installation and removal.

[0146] The places not mentioned in the application can be realized by using or referring to the existing technology.

[0147] Each of the embodiments in the specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0148] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A humidification chamber for a breathing machine, characterized in that, The humidifier tank comprises a tank body and a cover body, the tank body has a top wall, the top wall is provided with a water inlet, the cover body can cover the water inlet, the cover body is provided with an air outlet, the humidifier tank further comprises an air outlet pipe connected with the air outlet, the air outlet pipe is curved and connected with the cover body.

2. The humidifier tank according to claim 1, wherein, an end of the air outlet pipe is provided with a first clamping protrusion, a mouth of the air outlet is provided with a first matching protrusion, the first clamping protrusion is clamped and fixed with the first matching protrusion; the first matching protrusion is annular structure to surround the air outlet; or, the first matching protrusion is multiple and is arranged along the circumference of the air outlet.

3. The humidifier tank according to claim 1, wherein, the cover body comprises a body and a lifting part upwardly protruding relative to the body, the air outlet is arranged on the lifting part.

4. The humidifier tank according to claim 1, wherein, a side of the cover body facing the water storage cavity is provided with a flow guide protrusion, the flow guide protrusion extends along the circumference of the air outlet to surround at least part of the air outlet.

5. The humidifier tank according to claim 1, wherein, the tank body further has multiple side walls, at least one of the side walls and the top wall is provided with a transition section extending obliquely, so that when the tank body is inverted, liquid on the side wall is guided to the top wall through the transition section and discharged from the water storage cavity through the water inlet.

6. The humidifier tank according to claim 5, wherein, a mouth of the water inlet is provided with a limiting protrusion protruding inwardly of the water inlet, the limiting protrusion is provided with a drainage port.

7. The humidifier tank according to claim 1, wherein, a mouth of the water inlet is provided with a limiting protrusion protruding inwardly of the water inlet, the cover body has a matching protrusion protruding downwardly and extending into the water inlet, the matching protrusion can be matched with the limiting protrusion, the humidifier tank further comprises a sealing ring, the sealing ring is located between the lower side of the matching protrusion and the limiting protrusion; or, the sealing ring is located between the outer circumferential side of the matching protrusion and the inner wall of the water inlet.

8. The humidifier tank according to claim 1, wherein, the top wall is further provided with a positioning protrusion surrounding the outer circumference of the water inlet.

9. The humidifier tank according to claim 1, wherein, the tank body further has a side wall, the side wall is provided with an air inlet, the humidifier tank further comprises an air inlet pipe connected with the air inlet and extending into the water storage cavity, the air inlet pipe extends downwardly or obliquely.

10. The humidifier tank according to claim 9, wherein, the air inlet pipe is fixed to the tank body in a non-detachable manner; or, the air inlet pipe is connected with the tank body in a detachable manner.

11. The humidifier tank according to claim 9, wherein, The end of the air inlet pipe is provided with a second clamping protrusion, and the mouth of the air inlet is provided with a second matching protrusion, the second clamping protrusion and the second matching protrusion are clamped and fixed.

12. The humidification tank for a breathing machine according to claim 9, characterized in that, The air inlet is surrounded by a mounting protrusion, one of the side wall of the mounting protrusion and the outer wall of the air inlet pipe is provided with a fixing groove, the other is provided with a fixing protrusion matched with the fixing groove, the fixing groove is provided with a locking structure, and the fixing protrusion is provided with a matching structure, the air inlet pipe and the mounting protrusion can rotate relatively to make the locking structure and the matching structure match and lock or unlock.

13. The humidification tank for a breathing machine according to claim 12, characterized in that, One side of the fixing groove is further provided with a guide slide communicating with the fixing groove, and the guide slide extends spirally to the end of the mounting protrusion or the air inlet pipe.

14. The humidification tank for a breathing machine according to claim 9, characterized in that, The tank body has a first insertion part and a first clamping part arranged in a radial direction opposite to each other along the air inlet, and the end of the air inlet pipe has a second insertion part and a second clamping part arranged in a radial direction opposite to each other, the first insertion part and the second insertion part are inserted and matched to make the air inlet pipe swing around the insertion part, and the first clamping part and the second clamping part are clamped and fixed.

15. The humidifier tank for a ventilator of claim 1, wherein, The outer wall of the tank body or the cover body is further provided with an unlocking part, and the unlocking part can elastically move relative to the tank body or the cover body to lock or unlock the main machine of the breathing machine.

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 inlet, the unlocking part is arranged on the shell, the unlocking part has a clamping structure for clamping and fixing with the main machine of the breathing machine, the upper surface of the shell has a mounting sunken part, and the unlocking part is floatingly mounted on the mounting sunken part, and the unlocking part can move to make the clamping structure disengage from the main machine of the breathing machine.

17. The humidification tank for a breathing machine according to claim 16, characterized in that, The unlocking part includes an operation panel and an elastic rib position below the operation panel, the elastic rib position has a fixed end fixed with the operation panel and a free end extending obliquely towards the clamping structure, and the free end can swing around the fixed end to make the operation panel float up and down.

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