Press key, water tank and ventilation treatment equipment

Abstract

The embodiment of the utility model provides a press key which is used for disassembly and assembly between a water tank and a main machine of ventilation treatment equipment. The pressing key is arranged in the water tank and can be pressed in the direction close to the interior of a water tank shell of the water tank under the action of external force, so that the water tank can be assembled to the host or disassembled from the host; wherein the pressing key comprises a pressing main body, the pressing main body comprises a springback structure, the springback structure comprises a fixed end and a free end which are oppositely arranged, and the springback structure is used for enabling the free end to move from a first position to a second position when the pressing key is pressed in the direction close to the interior of the water tank shell, and the springback structure generates elastic deformation; after the external force is released, the free end moves from the second position to the first position, the rebound structure restores deformation to drive the pressing key to rebound and reset in the direction away from the interior of the water tank shell, and the water tank is reset after being connected to the main machine or detached. The embodiment of the utility model further provides the water tank comprising the pressing key and the ventilation treatment equipment comprising the water tank.

Description

[0001] Cross-references

[0002] This specification claims the priority of the international application with application number PCT / CN2023 / 090623 filed on April 25, 2023, and the entire contents are incorporated herein by reference. Technical Field

[0003] The present specification relates to the technical field of medical equipment, and in particular to a push button, a water tank and a ventilation therapy device. Background Art

[0004] As a device with artificial ventilation function, ventilation therapy equipment (such as ventilator) has been widely used in the treatment of respiratory failure caused by various reasons, sleep apnea hypopnea syndrome and other diseases, and it occupies a very important position in the field of modern medicine. When users use ventilation therapy equipment to treat respiratory diseases, the ventilation therapy equipment needs to inhale gas from the outside and perform a series of gas treatments before it can provide users with breathing. Current ventilation therapy equipment often has many problems. For example, the water tank on the ventilation therapy equipment used to humidify the breathing gas provided to the user is not easy to disassemble and assemble from the main unit of the ventilation therapy equipment.

[0005] In order to solve the above problems, this specification aims to provide a push button, a water tank and a ventilation therapy device. Summary of the invention

[0006] One of the embodiments of this specification provides a push button for disassembly and assembly between a water tank and a main unit of a ventilation therapy device. The push button is arranged on the water tank, and the push button is configured to be pressed toward the direction of the inside of the water tank shell close to the water tank under the action of an external force, so that the water tank can be assembled to or disassembled from the main unit; wherein the push button includes a push body, and the push body includes a rebound structure, and the rebound structure includes a fixed end and a free end arranged opposite to the fixed end, and the rebound structure is used for: when the push button is pressed toward the direction close to the inside of the water tank shell, the free end moves from a first position to a second position, and the rebound structure generates elastic deformation; when the external force is released, the free end moves from the second position to the first position, and the rebound structure recovers the deformation to drive the push button to rebound and reset in the direction away from the inside of the water tank shell, so that the water tank is connected to the main unit or reset after being disassembled.

[0007] One of the embodiments of the present specification provides another push button for assembly and disassembly between the water tank and the host of the ventilation therapy device. The push button is arranged on the water tank, and the push button is configured to be pressed toward the direction of the inside of the water tank shell close to the water tank under the action of an external force, so that the water tank can be assembled to the host or disassembled from the host; wherein the push button includes a push body, the push body includes a rebound structure, the rebound structure includes an elastic arm, the elastic arm includes a free end and a fixed end arranged opposite to the free end, and the elastic arm is configured as follows: when the push button is pressed toward the direction close to the inside of the water tank shell, the free end slides toward the direction away from the fixed end, and the elastic arm generates elastic deformation; when the external force is released, the free end slides toward the direction close to the fixed end, and the elastic arm restores the deformation, so that the water tank is connected to the host or reset after disassembly.

[0008] One of the embodiments of this specification provides another push button for assembly and disassembly between the water tank and the host of the ventilation therapy device. The push button is arranged on the water tank, and the push button is configured to be pressed toward the direction of the inside of the water tank shell close to the water tank under the action of an external force, so that the water tank can be assembled to the host or disassembled from the host; wherein the push button includes a push body, the push body includes a rebound structure, the rebound structure includes an elastic member, and the elastic member is configured as follows: when the push button is pressed toward the direction close to the inside of the water tank shell, the height of the elastic member decreases and elastic deformation occurs; when the external force is released, the height of the elastic member increases and the deformation is restored, so that the water tank is connected to the host or reset after disassembly.

[0009] One of the embodiments of the present specification provides a water tank, which includes a push button as described in any of the above items.

[0010] One of the embodiments of the present specification is a ventilation therapy device, which includes the water tank as described above.

[0011] The beneficial effects that may be brought about by the embodiments of this specification include but are not limited to: (1) The setting of the push button on the water tank realizes the detachable connection between the water tank and the main unit of the ventilation therapy device, reduces the difficulty of disassembling the water tank, and allows the connection method between the water tank and the main unit to be flexibly set; (2) The setting of the rebound structure allows the push button to automatically reset after being pressed, without the need for additional operation, and the steps are simple; (3) The push button is movable relative to the water tank shell, so that the water tank can remain stable during the disassembly process and is not prone to shaking relative to the main unit, which not only increases the diversity of the connection methods between the water tank and the main unit, but also reduces the difficulty of connecting the water tank to the main unit, making the disassembly and assembly of the water tank easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] This specification will be further described in the form of exemplary embodiments, which will be described in detail by the accompanying drawings. These embodiments are not restrictive, and in these embodiments, the same number represents the same structure, wherein:

[0013] Figure 1A is a schematic diagram of an exemplary appearance of a water tank according to some other embodiments of this specification;

[0014] Figure 1B is a schematic diagram of an exemplary matching structure of a push key and a recessed structure according to some embodiments of this specification;

[0015] Figure 1C is an exemplary structural diagram of a press key according to some embodiments of this specification;

[0016] Figure 1D is a schematic diagram of an exemplary structure of a press key from another perspective according to some embodiments of this specification;

[0017] Figure 1E is an exemplary structural schematic diagram of a recessed structure according to some embodiments of this specification;

[0018] Figure 1F is an exemplary structural diagram of another recessed structure according to some embodiments of this specification;

[0019] Figure 1G is another exemplary structural diagram of a push key according to some embodiments of the present specification.

[0020] In the figure: 700, water tank; 710, water tank shell; 720, recessed structure; 721, limiting groove; 722, guide groove; 725, second elastic arm; 725-1, second fixed end; 725-2, second free end; 750, pressing key; 751, pressing surface; 751-1, pressing stripe; 752, connecting structure; 752-1, connecting member; 752-2, buckle protrusion; 753, limiting member; 754, guide member; 754-1, reinforcing protrusion; 755, first elastic arm; 755-1, first fixed end; 755-2, first free end; 756, connecting protrusion; 757, fixing structure; 758, spring mechanism; 760, elastic member. DETAILED DESCRIPTION

[0021] Exemplary embodiments or implementations will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0022] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0023] It should be understood that the words "first", "second" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "an" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Unless otherwise indicated, words such as "front", "rear", "lower" and / or "upper" are merely for ease of description and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprises" include the elements or objects listed after "include" or "comprises" and their equivalents, and do not exclude other elements or objects.

[0024] In modern clinical medicine, ventilation therapy equipment (such as ventilators) is an effective means to artificially replace the autonomous ventilation function. It is a device that can replace, control or change a person's normal physiological breathing, increase lung ventilation, improve respiratory function, and reduce the consumption of respiratory work. It has been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgery, respiratory support therapy and emergency resuscitation, and occupies a very important position in the field of modern medicine. Ventilation therapy equipment is a vital medical device that can prevent and treat respiratory failure, reduce complications, and save and prolong the life of patients. The disassembly and assembly of the water tank and the main unit of the ventilation therapy equipment currently used on the market has problems such as difficult operation and laborious disassembly.

[0025] Figure 1A is a schematic diagram of an exemplary appearance of a water tank according to some other embodiments of this specification; Figure 1B is a schematic diagram of an exemplary matching structure of a push key and a recessed structure according to some embodiments of this specification; Figure 1C is an exemplary structural diagram of a press key according to some embodiments of this specification; Figure 1Dis a schematic diagram of an exemplary structure of a press key from another perspective according to some embodiments of this specification; Figure 1E is an exemplary structural schematic diagram of a recessed structure according to some embodiments of this specification; Figure 1F FIG. 1 is an exemplary structural diagram of another concave structure according to some embodiments of this specification. Figure 1A to Figure 1F The structure of the water tank 700 will be described.

[0026] like Figure 1A As shown, some embodiments of this specification provide a water tank 700, which includes a push button 750. The push button 750 can be used for disassembly and assembly between the water tank 700 and the host in the ventilation therapy device. In some embodiments, the water tank 700 includes a water tank housing 710, and the push button 750 is arranged on the outer surface of the water tank housing 710. Please refer to Figure 1A and Figure 1B , wherein the pressing key 750 is configured to be pressed toward the direction close to the inside of the water tank housing 710 under the action of an external force, so that the water tank 700 can be assembled to the host or disassembled from the host. In some embodiments, the pressing key 750 includes a pressing body, wherein the pressing body includes a rebound structure (not shown in the figure), and the rebound structure can be used for: when the pressing key 750 is pressed toward the direction close to the inside of the water tank housing 710, the rebound structure generates elastic deformation; when the external force is released, the rebound structure recovers the deformation and drives the pressing key 750 to rebound and reset in the direction away from the inside of the water tank housing 710, so that the water tank 700 is connected to the host or reset after disassembly. Therefore, during the assembly or release process of the water tank 700, the water tank 700 as a whole can remain stable (for example, the relative positions of the various parts of the water tank housing 710 remain unchanged, etc.), which facilitates the connection between the water tank 700 and the host and reduces the difficulty of connection.

[0027] In some embodiments, the rebound structure includes a fixed end and a free end, and the fixed end and the free end are arranged opposite to each other. The rebound structure is used for: when the push button 750 is pressed in a direction close to the inside of the water tank housing 710, the free end moves from the first position to the second position, and the rebound structure generates elastic deformation; when the external force is released, the free end moves from the second position to the first position, and the rebound structure recovers the deformation to drive the push button 750 to rebound and reset in a direction away from the inside of the water tank housing 710, so that the water tank 700 is connected to the host or reset after being disassembled from the host. In this embodiment, due to the elastic deformation of the rebound structure, at least part of the structure of the push button 750 has a moving space relative to the water tank housing 710, and the connection and separation of the water tank 700 and the corresponding docking position on the host are realized by moving at least part of the structure of the push button 750. In the present embodiment, since the free end of the rebound structure moves between the first position and the second position, at least part of the structure of the push key 750 has space to move. In actual applications, the moving space range of the above-mentioned movable part of the push key 750 may not be large, for example, it moves within the range of 0.1mm-1mm. Of course, according to the structural dimensions of the actual application, it can also move within the range of less than 0.1mm or greater than 1mm. However, for the stability of the pressing operation of the push key 750, the maximum pressing range is preferably not more than 15mm.

[0028] In some embodiments, the push button 750 can be arranged on the upper surface of the water tank housing 710, and the push button 750 can be pressed downward under the action of an external force; after the external force is released, the push button 750 can rebound upward and reset under the drive of the rebound structure. In some embodiments, the push button 750 can also be arranged on other surfaces of the water tank housing 710, such as the bottom surface, the front surface, the side surface, etc. In some embodiments, the number of push buttons 750 can be one or more. For example, the number of push buttons 750 can be one, which is arranged on the upper surface or the front surface of the water tank housing 710. For another example, the number of push buttons 750 can be two, which are respectively arranged on different surfaces of the water tank housing 710. Considering the operability of the water tank 700 and the host when actually disassembling and assembling, when the number of push buttons 750 is too large, it will cause the operator to have greater difficulty in operation and it is difficult to operate with one hand. The number of push buttons 750 can be one or two. Moreover, when the number of push buttons 750 is two, the two push buttons 750 are respectively arranged on two opposite surfaces of the water tank housing 710, such as the upper surface and the bottom surface. For ease of description, the structure of the push button 750 and the water tank housing 710 is described below by taking the push button 750 being disposed on the upper surface of the water tank housing 710 as an example. It should be noted that the structure of the push button 750 disposed on other surfaces of the water tank housing 710 is the same or similar to the structure of the push button 750 disposed on the upper surface of the water tank housing 710, and this specification will not describe it in detail.

[0029] In some embodiments, the length direction of the water tank housing 710 can be defined as the X direction, the width direction of the water tank housing 710 can be defined as the Y direction, and the height direction of the water tank housing 710 can be defined as the Z direction. In addition, the right is the X direction, the left is the opposite direction of the X direction, and the water tank housing 710 enters the host to the left (i.e., in the opposite direction of the X direction) to achieve connection. The top is the Z direction, and the bottom is the opposite direction of the Z direction. The push button 750 moves downward, that is, the push button 750 moves in the opposite direction of the Z direction; the push button 750 moves upward, that is, the push button 750 moves in the Z direction. The front is the opposite direction of the Y direction, and the back is the Y direction.

[0030] In some embodiments, the pressing key 750 further includes a connecting structure 752, and the connecting structure 752 is detachably connected to the host. The pressing body includes a pressing structure, and the connecting structure 752 is arranged at one end of the pressing body close to the host, that is, the connecting structure 752 is arranged at one end of the pressing structure close to the host. In the case where the pressing key 750 is arranged on the upper surface of the water tank housing 710, that is, the top surface, when the pressing key 750 is pressed in a direction close to the inside of the water tank housing 710, that is, a force is applied to the upper surface of the pressing structure, that is, the pressing surface 751, in a direction close to the inside of the water tank housing 710, that is, the pressing structure is pressed downward, then the connecting structure 752 moves synchronously with the pressing structure in the same direction in a direction close to the inside of the water tank housing 710, that is, the connecting structure 752 moves downward, so that the connecting structure 752 is separated from the corresponding docking position on the host, so that the connecting structure 752 is separated from the host, so that the water tank 700 can be disassembled from the host. When the push button 750 is reset, the connection structure 752 can be connected to the host, thereby achieving the connection and fixation between the water tank 700 and the host.

[0031] like Figure 1B and Figure 1CAs shown, in some embodiments, the connection structure 752 is disposed at one end of the pressing key 750 close to the host, that is, in the X direction, the connection structure 752 is disposed on the left side of the pressing body to facilitate the connection between the connection structure 752 and the host. In some embodiments, the connecting structure 752 may include a connecting piece 752-1 and a snap protrusion 752-2. The upper surface of the connecting structure 752 (i.e., the direction away from the water tank shell 710) is provided with a connecting piece 752-1 and a snap protrusion 752-2 (or a groove) for connecting to the host. The connecting piece 752-1 is connected to the end of the pressing body, and the snap protrusion 752-2 is arranged at the end of the connecting piece 752-1 away from the pressing body. Correspondingly, the inner surface of the shell of the host, in this embodiment, specifically the inner surface of the top shell of the host, is provided with a docking position corresponding to the connecting structure 752, and the docking position is provided with a groove (or protrusion) docking with the snap protrusion 752-2. Since the connecting piece 752-1 has a preset length, for example, the length ranges from 5 mm to 25 mm, the docking position and the groove of the host should be set at a position corresponding to the preset length of the connecting piece 752-1. The buckle protrusion 752-2 and the groove only have a degree of freedom of movement along the moving direction of the movable part of the push button 750 (e.g., the Z direction, i.e., the up-down direction). For example, when the pressing structure of the push button 750 is pressed downward, the connection structure 752 moves downward synchronously. At this time, the connection structure 752 is located below the docking position on the host and has a distance, such as 0.05mm or 0.3mm. During the installation process of the water tank 700, when the pressing structure is pressed by an external force in a direction close to the inside of the water tank housing 710 (e.g., downward), the buckle protrusion 752-2 moves synchronously in a direction close to the inside of the water tank housing 710 (e.g., downward). At this time, the water tank 700 can be moved to the left (i.e., in the opposite direction of the X direction) into the host until the buckle protrusion 752-2 moves to the corresponding position below the groove. When the external force is released, the pressing structure rebounds and resets in a direction away from the inside of the water tank housing 710 (for example, upward), and the buckle protrusion 752-2 enters the groove to achieve clamping and fixing, thereby locking the connection between the water tank 700 and the host. During the disassembly and assembly process of the water tank 700, when the pressing structure is pressed in a direction close to the inside of the water tank housing 710 (for example, downward) by the external force, the buckle protrusion 752-2 moves in a direction close to the inside of the water tank housing 710 (for example, downward) and moves out of the groove, thereby unlocking the connection between the water tank 700 and the host. At this time, the water tank 700 can be moved to the right (i.e., along the X direction) out of the host, thereby separating the water tank 700 from the host. After the water tank 700 is disassembled, the external force can be released and the pressing key 750 can be reset.

[0032] In some embodiments, the connection structure 752 and the host may also include other connection methods that can be locked or unlocked by movement. For example, the connection structure 752 and the host can be magnetically connected. When the push button 750 moves in a direction away from the interior of the water tank shell 710 (for example, upward, i.e., the Z direction) until the connection structure 752 and the host are in magnetic contact and connection, the connection between the water tank 700 and the host is locked; when the push button 750 moves in a direction close to the interior of the water tank shell 710 (for example, downward, i.e., the opposite direction of the Z direction) until the connection structure 752 is separated from the host, and the connection structure 752 does not automatically approach the host under the action of the magnetic force, the connection between the water tank 700 and the host can be unlocked.

[0033] Please refer to Figure 1B , Figure 1E and Figure 1F In some embodiments, the upper surface of the water tank housing 710 includes a recessed structure 720, and the push button 750 is accommodated in the recessed structure 720. The push button 750 can move in the recessed structure 720 toward or away from the inside of the water tank housing 710 (for example, upward or downward), thereby locking or unlocking the connection between the water tank 700 and the host. The rebound structure is arranged between the side of the push button 750 close to the inside of the water tank housing 710 (i.e., the lower side) and the bottom wall of the recessed structure 720. The rebound structure can drive the push button 750 to move in the direction away from the bottom wall of the recessed structure 720 (i.e., away from the inside of the water tank housing 710, upward) during the process of restoring the deformation.

[0034] Please refer to Figure 1B and Figure 1C In some embodiments, the free end of the rebound structure is used to abut against the surface of the water tank housing 710, and the fixed end is fixedly connected to the pressing structure. The upper surface of the pressing structure is a pressing surface 751, and the pressing surface 751 is arranged on the surface of the pressing key 750 away from the inside of the water tank housing 710 (i.e., the upper surface of the pressing structure), which is used to provide a pressing area for the user. Therefore, the rebound structure is arranged on the lower surface of the pressing structure, and the fixed end of the rebound structure is connected to the lower surface of the pressing structure, and the free end of the rebound structure abuts against the top surface of the water tank housing 710. In some embodiments, the connecting structure 752 can be integrally formed with the pressing structure, or it can be arranged that the connecting structure 752, the pressing structure, and the rebound structure are integrally formed, thereby reducing the steps and difficulty of manufacturing the pressing key 750, and then the connecting structure 752 and the pressing structure or the pressing surface 751 move synchronously and in the same direction. In some embodiments, the pressing structure is arranged between the free end and the fixed end of the rebound structure, and the relative position between the free end and the fixed end can be changed by applying force on the pressing structure. For example, when force is applied to the pressing structure, the free end gradually approaches the fixed end, and the horizontal angle between the two gradually increases, that is, the horizontal distance between the free end and the fixed end decreases.

[0035] Please refer to Figure 1C In some embodiments, a pressing stripe 751-1 may be provided on the pressing surface 751. A plurality of pressing stripes 751-1 may be arranged at intervals along the X direction. The pressing stripe 751-1 may serve as a tactile prompt to prompt the user to press the pressing position of the pressing surface 751. At the same time, the pressing stripe 751-1 may also serve to increase friction and prevent slipping, thereby preventing the user from slipping on the pressing surface 751 during operation, and improving the operational safety of the water tank 700.

[0036] Please refer to Figure 1B , Figure 1C and Figure 1D In some embodiments, at least one of a limiting structure and a guiding structure is further provided between the push button 750 and the outer surface (e.g., the recessed structure 720) of the water tank housing 710. The limiting structure can be used to limit the range of movement of the push button 750 in a direction away from the inside of the water tank housing 710 (e.g., upward), and the push button 750 can be connected to the recessed structure 720 through the limiting structure. The guiding structure can be used to guide the push button 750 to move along a preset path.

[0037] In some embodiments, the number of limiting structures may be two or more. In some embodiments, the two sides (front side and rear side) of the push key 750 in the width direction (i.e., the Y direction) may be provided with limiting structures, and the number of limiting structures on both sides may be the same or different. Exemplarily, two limiting structures may be provided on both sides of the push key 750 in the Y direction. Among them, the two limiting structures on any one side are arranged at intervals along the X direction to enhance the connection strength between the push key 750 and the recessed structure 720. In some embodiments, one or more limiting structures may also be provided on the right side of the push key 750 in the X direction. In some embodiments, one or both sides or three sides of the front side, rear side and right side of the push key 750 may be provided with limiting structures, and the number of limiting structures provided on each side may be the same or different.

[0038] In some embodiments, the limiting structure may include a limiting member 753 and a limiting groove 721. The limiting member 753 may be disposed on one of the side of the push button 750 close to the inside of the water tank housing 710 (i.e., the lower side) or the outer surface of the water tank housing 710 (e.g., the recessed structure 720), and the limiting groove 721 may be disposed on the other of the side of the push button 750 close to the inside of the water tank housing 710 (i.e., the lower side) or the outer surface of the water tank housing 710 (e.g., the recessed structure 720). For example, Figure 1E and Figure 1FAs shown, the limiting member 753 can be arranged on one side (i.e., the lower side) of the pressing key 750 near the inside of the water tank housing 710, the limiting groove 721 can be arranged in the recessed structure 720, and the limiting groove 721 can cooperate with the limiting member 753 to limit the pressing key 750 in the recessed structure 720 during the resetting process of the pressing key 750. In some embodiments, the limiting member 753 is located in the limiting groove 721, and the limiting member 753 can move in the limiting groove 721 in a direction close to and / or away from the inside of the water tank housing 710 (e.g., up and down direction). The height of the limiting groove 721 is the range of movement of the pressing key 750. In some embodiments, the limiting groove 721 is arranged on the inner wall of the recessed structure 720, and corresponds to the limiting member 753 one by one. That is, the setting position and setting number of the limiting groove 721 correspond to the setting position and setting number of the limiting member 753 one by one. Exemplarily, four limiting structures are arranged between the push key 750 and the recessed structure 720, wherein two limiting structures are arranged at intervals along the X direction at the front side of the push key 750 in the Y direction, and the other two limiting structures are arranged at intervals along the X direction at the rear side of the push key 750 in the Y direction. At this time, the front side and the rear side of the push key 750 in the Y direction are respectively provided with two limiting members 753 arranged at intervals along the X direction; correspondingly, the two inner side walls of the recessed structure 720 in the Y direction may also be respectively provided with two limiting grooves 721 arranged at intervals along the X direction. In some embodiments, the limiting member 753 may include but is not limited to structures such as hooks, hooks, and blocks that can cooperate with the limiting grooves 721.

[0039] In some embodiments, the limiting groove 721 has a preset height in the Z direction, so that when the limiting member 753 moves in the limiting groove 721 to contact the inner wall of the end of the limiting groove 721 in the Z direction, the limiting member 753 is engaged in the limiting groove 721 and is engaged and engaged at the end edge of the limiting groove 721. At this time, the pressing surface 751 of the pressing key 750 can be flush with the outer surface (e.g., the upper surface) of the water tank housing 710, as shown in FIG. Figure 1B As shown, the pressing surface 751 is prevented from protruding or recessing relative to the outer surface of the water tank housing 710 at the recessed structure 720, thereby preventing the pressing surface 751 from interfering with the connection between the water tank 700 and the host.

[0040] In some embodiments, the guide structure includes a guide member 754 and a guide groove 722. The guide member 754 can be disposed on one of the side of the push button 750 close to the inside of the water tank housing 710 (i.e., the lower side) or the outer surface of the water tank housing 710 (e.g., the recessed structure 720), and the guide groove 722 can be disposed on the other of the side of the push button 750 close to the inside of the water tank housing 710 (i.e., the lower side) or the outer surface of the water tank housing 710 (e.g., the recessed structure 720). For example, Figure 1B , Figure 1C and Figure 1D As shown, the guide member 754 can be arranged on one side (e.g., the lower side) of the pressing surface 751 close to the inside of the water tank housing 710, the guide groove 722 can be arranged in the recessed structure 720, and the guide member 754 can move in the guide groove 722 in a direction close to and / or away from the inside of the water tank housing 710 (e.g., up and down direction). The guide member 754 can cooperate with the guide groove 722, and the guide groove 722 can be used as a preset path to guide the moving direction of the pressing key 750 during the pressing and rebounding reset process, so that the guide member 754 moves in the guide groove 722 during the movement of the pressing key 750, and the pressing key 750 is prevented from tilting in the X and / or Y directions during the movement, so that the pressing surface 751 can maintain stability in the X and / or Y directions, and the stability of the pressing key 750 is improved.

[0041] In some embodiments, the guide structure can be arranged in the estimated force point area of ​​the pressing surface 751 (for example, near the middle of the length direction). Through the above arrangement, the distance between the force position of the pressing surface 751 and the guide structure in the X direction can be reduced as much as possible, so that when the user presses the pressing surface 751, the force direction of the pressing key 750 can basically coincide with the extension direction of the guide structure (for example, the guide member 754 and / or the guide groove 722) (i.e., the Z direction or the opposite direction of the Z direction), thereby reducing the friction during the movement of the pressing key 750 and reducing the difficulty of pressing. Therefore, in order to effectively and smoothly drive the connection structure 752 to move, the pressing area on the pressing key 750 that is acted upon by the external force is preferably located near its middle area, where the middle of the length direction of the pressing key 750 refers to the middle position of the length direction of other parts except the connection structure 752, that is, near the middle area of ​​the length direction of the pressing body. In some embodiments, the above-mentioned pressing area is preferably located near the middle area of ​​the length direction of the pressing structure. In addition, generally, the force center of the rebound structure also corresponds to the vicinity of the middle position of the pressing structure, that is, the vertical line of the force center of the rebound structure and the vertical line of the middle of the pressing structure are basically coincident.

[0042] Please refer to Figure 1D In some embodiments, a reinforcing protrusion 754-1 may be provided on one side of the guide member 754 away from the inner wall of the recessed structure 720, and the reinforcing protrusion 754-1 may be extended along the Z direction. The reinforcing protrusion 754-1 may strengthen the strength of the guide member 754 and reduce the possibility of the guide member 754 being broken or deformed by force. In some embodiments, the guide member 754 may be provided with a plurality of reinforcing protrusions 754-1, and the plurality of reinforcing protrusions 754-1 are spaced apart in the X direction.

[0043] Please refer to Figure 1DIn some embodiments, a guide structure may be provided between the push button 750 and the recessed structure 720, and on both sides (front and rear) of the push button 750 in the Y direction. The two guide structures cooperate to guide the movement of the push button 750, thereby enhancing the stability of the push button 750. In some embodiments, in the X direction, the guide structure (e.g., the guide member 754 and / or the guide groove 722) may be located between two limiting structures (e.g., the limiting member 753 and / or the limiting groove 721), such as Figure 1D shown.

[0044] Please refer to Figure 1E and Figure 1F In some embodiments, the location and number of the guide grooves 722 may correspond to the location and number of the guide members 754. Exemplarily, two guide structures are provided between the push button 750 and the recessed structure 720, one of which is provided at the front side of the push button 750 in the Y direction, and the other is provided at the rear side of the push button 750 in the Y direction. In this case, a guide member 754 may be provided on both sides (front and rear) of the push button 750 in the Y direction, respectively, and the guide members 754 on each side are provided in the estimated force point area of ​​the pressing surface 751 (for example, near the middle of the length direction); correspondingly, a corresponding guide groove 722 may be provided on the two inner side walls of the recessed structure 720 in the Y direction, respectively, and the guide groove 722 on each side may be provided at the corresponding position in the middle of the pressing surface 751.

[0045] Please refer to Figure 1B to Figure 1DIn some embodiments, the rebound structure may include at least one of an elastic arm (e.g., a first elastic arm 755 and / or a second elastic arm 725) and an elastic member 760. The elastic arm includes a free end and a fixed end, and the elastic arm is configured as follows: when the pressing key 750 is pressed toward a direction close to the inside of the water tank housing 710 (e.g., downward), that is, when the pressing structure and the connecting structure 752 are pressed toward a direction close to the inside of the water tank housing 710 (e.g., downward), the free end moves toward a direction away from the fixed end, and the elastic arm undergoes elastic deformation, that is, the fixed end of the elastic arm fixedly connected to the lower surface of the pressing structure moves toward a direction close to the inside of the water tank housing 710 along with the pressing structure, the elastic arm undergoes elastic deformation, and the angle between the lower surface of the pressing structure connected to the fixed end of the elastic arm and the elastic arm decreases, so that the horizontal distance component between the free end and the fixed end of the elastic arm increases; when the external force is released, the free end moves toward a direction close to the fixed end, and the elastic arm recovers its deformation, that is, the horizontal distance component between the free end and the fixed end of the elastic arm decreases. In some embodiments, the fixed end of the elastic arm is fixed, and the free end of the elastic arm can abut against other parts (such as the water tank housing 710 or a pressing structure, etc.). When the free end of the elastic arm moves toward or away from the fixed end, the free end can slide against the surface of the abutted part, that is, the free end moves from the first position to the second position, wherein the range of the moving space between the first position and the second position is as described above and will not be repeated here. When sliding, the free end of the elastic arm can slide toward or away from the fixed end, and please refer to the relevant description of the elastic arm below for details. The elastic member 760 is configured as follows: when the push button 750 is pressed in a direction close to the inside of the water tank housing 710 (for example, downward), the height of the elastic member 760 is reduced and elastic deformation occurs; when the external force is released, the height of the elastic member 760 is increased and the deformation is restored. In some embodiments, during the pressing process of the push button 750, the height reduction of the elastic member 760 can be expressed as the lowering of the position of the upper end of the elastic member 760 (for example, the end of the elastic member 760 connected to the push button 750), and the height of the position of the lower end of the elastic member 760 (for example, the end of the elastic member 760 connected to the water tank housing 710) can remain unchanged. In some embodiments, the height reduction of the elastic member 760 can also be expressed as the reduction of the vertical distance between the upper end and the lower end of the elastic member 760 in the height direction. Correspondingly, the height increase of the elastic member 760 can be expressed as the increase of the upper end position of the elastic member (the height of the lower end position can remain unchanged) and the increase of the vertical distance between the upper end and the lower end of the elastic member 760 in the height direction.

[0046] In some embodiments, the fixed end of the elastic arm is fixedly connected to one of the side (e.g., the lower side) of the push button 750 close to the inside of the water tank housing 710 or the bottom wall of the recessed structure 720, and the free end of the elastic arm abuts against the other of the side (e.g., the lower side) of the push button 750 close to the inside of the water tank housing 710 or the bottom wall of the recessed structure 720. When the push button 750 is pressed downward by an external force or after the external force is released, the free end slides relative to the other of the side (e.g., the lower side) of the push button 750 close to the inside of the water tank housing 710 or the bottom wall of the recessed structure 720. When the push button 750 is pressed toward the direction close to the inside of the water tank housing 710 (e.g., downward) by an external force, the free end slides toward the direction away from the fixed end, and the elastic arm is elastically deformed to accumulate elastic potential energy. When the external force is released, the free end slides toward the fixed end, and the elastic arm restores its elastic deformation, driving the push button 750 to rebound and reset in a direction away from the inside of the water tank housing 710 (for example, upward). It should be noted that in this specification, abutment refers to contact but no force, or contact and pre-pressure. As an example only, when the push button 750 is in a normal state (i.e., not pressed by an external force), the free end abuts against the bottom wall of the recessed structure 720, which may mean that the free end just contacts the bottom wall of the recessed structure 720 and is in an unstressed state, and the elastic arm does not undergo elastic deformation; or, the free end contacts the bottom wall of the recessed structure 720, and the first free end 755-2 is in a stressed state, the elastic arm undergoes elastic deformation under force, and the elastic arm accumulates elastic potential energy. In the embodiment in which the rebound structure is set as an elastic arm, since the elastic arm includes a fixed end and a free end, and a certain length of arm body is connected and transitioned between the fixed end and the free end, the elastic arm has a certain length and a certain length component in the horizontal direction. The elastic arm with a certain length enables the pressing key 750, especially the pressing structure connected to the elastic arm, to have a larger range of pressing force area, so that effective pressure can be applied to the elastic arm within the range of the length component in the horizontal direction of the elastic arm, thereby increasing the pressing force area of ​​the pressing key 750, facilitating the effective use and application of the pressing key 750, and increasing the stability and effectiveness of the use of the pressing key 750. In some embodiments, when the angle between the lower surface of the pressing structure and the elastic arm (mainly the arm body of the elastic arm) is certain, the longer the length of the arm body, the larger the movable movement space of the pressing key 750 in the vertical direction, that is, the pressing key 750 can have an obvious vertical direction (such as up and down direction) moving space, so the use sensitivity, stability and effectiveness of the pressing key 750 can be improved, and the normal disassembly or connection between the water tank and the host can be ensured.

[0047] In some embodiments, when the middle area of ​​the pressing structure is subjected to force, the force center of the elastic arm also corresponds to the middle position of the pressing structure, that is, the vertical line of the force center of the elastic arm basically coincides with the vertical line of the middle of the pressing structure.

[0048] In some embodiments, the elastic arm may include at least one first elastic arm 755 and / or at least one second elastic arm 725. The first elastic arm 755 and / or the second elastic arm 725 may drive the push button 750 to rebound and reset in a direction away from the inside of the water tank housing 710 (e.g., upward) after the push button 750 is pressed in a direction close to the inside of the water tank housing 710 (e.g., downward).

[0049] In some embodiments, the first elastic arm 755 is disposed on a side (eg, the lower side) of the pressing surface 751 close to the inside of the water tank housing 710. The first elastic arm 755 includes a first fixed end 755-1 and a first free end 755-2. Figure 1D The first fixed end 755-1 of the first elastic arm 755 is fixed to the side of the pressing key 750 opposite to the pressing surface 751 (i.e., the side of the pressing surface 751 close to the inside of the water tank housing 710, such as the lower side), and the first free end 755-2 of the first elastic arm 755 abuts against the bottom wall of the recessed structure 720, as shown in FIG. Figure 1B As shown. In some embodiments, when the push button 750 is pressed in a direction close to the inside of the water tank housing 710 (for example, downward) by an external force, the first free end 755-2 of the first elastic arm 755 can slide relative to the bottom wall of the recessed structure 720, and the first elastic arm 755 is deformed to accumulate elastic potential energy. In some embodiments, the first elastic arm 755 is arranged along the X direction; when the push button 750 is pressed in a direction close to the inside of the water tank housing 710 (for example, downward) by an external force, the first free end 755-2 of the first elastic arm 755 moves away from the first fixed end 755-1 along the X direction; correspondingly, the first free end 755-2 of the first elastic arm 755 approaches the first fixed end 755-1 in the Z direction. When the external force is released, the first elastic arm 755 releases its elastic potential energy, and the first free end 755-2 of the first elastic arm 755 slides on the bottom wall of the recessed structure 720, and the first free end 755-2 approaches the first fixed end 755-1 in the X direction, and the first free end 755-2 moves away from the first fixed end 755-1 in the Z direction, thereby driving the push button 750 to move in the Z direction away from the interior of the water tank housing 710 (i.e., upward), so that the push button 750 returns to the position before being pressed.

[0050] In some embodiments, when the push button 750 is in a normal state (i.e., not pressed by external force), the first free end 755-2 maintains an abutment state with the bottom wall of the recessed structure 720, so that the push button 750 is subsequently pressed in a direction close to the interior of the water tank shell 710 (for example, downward), and after the external force is released, the first elastic arm 755 can drive the push button 750 to return to its position before being pressed.

[0051] In some embodiments, the first free end 755-2 may be rounded. Figure 1C , Figure 1D The rounded corners can reduce the friction between the first free end 755 - 2 and the bottom wall of the recessed structure 720 , thereby reducing the difficulty of the first free end 755 - 2 sliding relative to the bottom wall of the recessed structure 720 .

[0052] In some embodiments, the number of the first elastic arms 755 can be two or more. Figure 1D In some embodiments, the number of the first elastic arms 755 can be two, and the two first elastic arms 755 are arranged in parallel and spaced apart along the Y direction to ensure that during the pressing and resetting process of the push key 750, the deformation of the two first elastic arms 755 can be kept consistent, thereby improving the stability and effectiveness of the push key 750.

[0053] Please refer to Figure 1F In some embodiments, the structure and function of the second elastic arm 725 are similar or identical to those of the first elastic arm 755. For example, the second free end 725-2 of the second elastic arm 725 may also be rounded. In some embodiments, the second fixed end 725-1 of the second elastic arm 725 is fixed to the bottom wall of the recessed structure 720, and the second free end 725-2 of the second elastic arm 725 abuts against the side of the pressing key 750 away from the pressing surface 751 (i.e., the side of the pressing key 750 close to the inside of the water tank housing 710, the lower side). When the pressing key 750 is pressed in a direction close to the inside of the water tank housing 710 (e.g., downward) by an external force, the second free end 725-2 of the second elastic arm 725 slides relative to the pressing key 750, and the second elastic arm 725 deforms to accumulate elastic potential energy. When the external force is released, the second free end 725-2 of the second elastic arm 725 slides relative to the lower side of the push button 750, and the second elastic arm 725 recovers its deformation to release elastic potential energy, driving the push button 750 to rebound and reset in a direction away from the inside of the water tank housing 710 (for example, upward). During the pressing and resetting process of the push button 750, the working process and principle of the second elastic arm 725 can refer to the relevant content of the first elastic arm 755, which will not be repeated here.

[0054] In some embodiments, the setting direction of the second elastic arm 725 can be parallel to the setting direction of the first elastic arm 755, and in the X direction, the position of the first fixed end 755-1 of the first elastic arm 755 corresponds to the position of the second free end 725-2 of the second elastic arm 725, and the position of the first free end 755-1 of the first elastic arm 755 corresponds to the position of the second fixed end 725-1 of the second elastic arm 725. Through the above settings, the forces applied by the second elastic arm 725 and the first elastic arm 755 to the push key 750 can offset each other in the X direction, thereby improving the stability of the push key 750.

[0055] In some embodiments, the number of the second elastic arms 725 can be two or more. Figure 1F In some embodiments, the number of the second elastic arms 725 can be two, and the two second elastic arms 725 are arranged in parallel and spaced apart along the Y direction to ensure that during the pressing and resetting process of the push key 750, the deformation of the two first elastic arms 755 can be kept consistent, thereby improving the stability of the push key 750.

[0056] In some embodiments, in the Y direction, the two second elastic arms 725 may be located between the two first elastic arms 755. In some embodiments, in the Y direction, the two first elastic arms 755 may be located between the two second elastic arms 725. In some embodiments, in the Y direction, the two first elastic arms 755 and the two second elastic arms 725 may be staggered with each other.

[0057] In the above embodiment where multiple elastic arms are provided, the multiple elastic arms are preferably symmetrically distributed. The multiple elastic arms can support the vertical movement of the pressing structure at different positions during the movement of the pressing structure of the pressing key 750, thereby improving the stability and stability of the use of the pressing key 750. In addition, the multiple elastic arms provided at different positions are equivalent to expanding the force-bearing area of ​​the rebound structure, thereby increasing the pressing force-bearing area of ​​the pressing structure of the pressing key 750, and facilitating the vertical (for example, downward) movement of the pressing structure in different areas of the pressing surface 751, thereby increasing the stability, stability, effectiveness, and usability of the use of the pressing key 750. Moreover, the provision of multiple elastic arms allows the rebound structure to still work when one or more of the elastic arms are damaged, so that the pressing key 750 can work normally, thereby ensuring the normal disassembly or connection between the water tank and the host.

[0058] Please refer to Figure 1BIn some embodiments, one end of the elastic member 760 may be fixedly connected to the lower side of the pressing surface 751 or the bottom wall of the recessed structure 720, that is, one end of the elastic member 760 is fixed, and the other end may abut against the other of the side of the pressing key 750 opposite to the pressing surface 751 (i.e., the lower side of the pressing surface 751) or the bottom wall of the recessed structure 720. That is, one end of the elastic member 760 may be fixed to the lower side of the pressing surface 751, and the other end may abut against the bottom wall of the recessed structure 720; or, one end of the elastic member 760 may be fixed to the bottom wall of the recessed structure 720, and the other end may abut against the lower side of the pressing surface 751. When the pressing key 750 is pressed toward the direction close to the inside of the water tank housing 710 (e.g., downward) by an external force, the height of the elastic member 760 decreases and elastic deformation occurs, accumulating elastic potential energy. When the external force is released, the elastic member 760 begins to recover its deformation and drives the pressing key 750 to move in a direction away from the inside of the water tank housing 710 (for example, upward) and return to the position before being pressed.

[0059] In some embodiments, one end of the elastic member 760 may be connected to the lower side of the pressing surface 751 or the bottom wall of the recessed structure 720 by plugging. Figure 1B and Figure 1D A connecting protrusion 756 may be provided on the side of the pressing key 750 opposite to the pressing surface 751 (i.e., the lower side of the pressing key 750) or the bottom wall of the recessed structure 720, and the connecting protrusion 756 may be connected to the elastic member 760. When the connecting protrusion 756 is inserted into the elastic member 760, the elastic member 760 is installed and fixed by the connecting protrusion 756. When the connecting protrusion 756 is pulled out from the elastic member 760, the elastic member 760 can be disassembled and replaced.

[0060] In some embodiments, the elastic member 760 may be disposed at a middle position between the recessed structure 720 and the push button 750 in the X direction (eg, Figure 1B , 1D As shown in FIG. 1 , on the basis that the pressing area on the pressing key 750 that is acted upon by the external force is located in the middle area of ​​the length direction of the pressing body (pressing structure), when the middle area of ​​the pressing structure of the pressing body is subjected to force, the force center of the elastic member 760 also corresponds to the vicinity of the middle position of the pressing structure, that is, the vertical line of the force center of the elastic member is substantially coincident with the vertical line of the middle of the pressing structure, so as to avoid the tilting of the pressing key 750 in the X direction and improve the stability of the pressing key 750. At this time, in the X direction, the elastic member 760 can be located between the connecting structure 752 and the first free end 755-2 of the first elastic arm 755, as shown in FIG. Figure 1B and Figure 1D In some embodiments, the elastic member 760 may be disposed at a middle position between the recessed structure 720 and the push button 750 in the Y direction (eg, Figure 1DAs shown in FIG. 7 , the two first elastic arms 755 can be respectively disposed on both sides of the elastic member 760 , and the two second elastic arms 725 can be respectively disposed on both sides of the elastic member 760 to enhance the stability of the push key 750 .

[0061] In some embodiments, the elastic member 760 may include an elastic material (such as silicone, etc.) or an elastic structure (such as a spring, etc.). In some embodiments, the elastic member 760 may be a spring, which has a long service life and is easy to replace.

[0062] In some embodiments, either the elastic member 760 or the second elastic arm 725 may be disposed in the recessed structure 720. In some embodiments, the elastic member 760 and the second elastic arm 725 may be disposed in the recessed structure 720 at the same time.

[0063] Figure 1G FIG. 1 is another exemplary structural diagram of a push button according to some embodiments of the present specification. Figure 1G In some embodiments, the push button 750 may also include a fixed structure 757, and the rebound structure may include a spring mechanism 758. The fixed structure 757 may be provided on the side of the push button 750 except the side provided with the connection structure 752, and the push button 750 is connected to the water tank housing 710 through the fixed structure 757. In the X direction, the fixed end of the spring mechanism 758 is connected to the fixed structure 757, and the free end of the spring mechanism 758 is provided with the connection structure 752; in the Y direction, gaps are provided between the two sides of the spring mechanism 758 and the fixed structure 757, so that the free end of the spring mechanism 758 can move relative to the fixed end of the spring mechanism 758.

[0064] In some embodiments, the pressing surface 751 is disposed on a surface (ie, an upper surface) of the spring mechanism 758 that is away from the interior of the water tank housing 710 .

[0065] In some embodiments, when the push button 750 is pressed toward a direction close to the interior of the water tank housing 710 (for example, downward), the free end of the spring mechanism 758 moves toward a direction close to the interior of the water tank housing 710, and the spring mechanism 758 undergoes elastic deformation; when the external force is released, the free end of the spring mechanism 758 moves toward a direction away from the interior of the water tank housing 710, and the spring mechanism 758 restores its deformation to drive the push button 750 to rebound and reset toward a direction away from the interior of the water tank housing 710.

[0066] In some embodiments, at least one of an elastic arm (for example, the first elastic arm 755 and / or the second elastic arm 725) and an elastic member 760 may also be provided between the spring mechanism 758 and the water tank housing 710. The elastic arm and / or the elastic member are arranged on the side of the spring mechanism 758 facing the inside of the water tank housing 710 (for example, the lower surface of the spring mechanism 758), or are arranged on the surface of the recessed structure 720 of the water tank housing 710 corresponding to the push button 750. This specification does not impose too many restrictions on this.

[0067] Some embodiments of the present specification also provide a ventilation therapy device, which includes the above-mentioned water tank 700. In some embodiments, the ventilation therapy device may include a ventilator device and a high-flow respiratory humidification therapy device.

[0068] In the above embodiment, the setting of the push button realizes the detachable connection between the water tank and the host, reduces the difficulty of disassembling the water tank, and allows the connection method between the water tank and the host to be flexibly set. The setting of the rebound structure on the push button allows the push button to automatically reset after being pressed, without additional operation, and the steps are simple. By setting the push button to move relative to the water tank shell, the water tank can remain stable during the disassembly process and is not easy to shake relative to the host, which not only improves the diversity of the connection methods between the water tank and the host, but also reduces the difficulty of connecting the water tank to the host, making the disassembly and assembly of the water tank easier.

[0069] It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced may be any one or a combination of the above, or any other beneficial effects that may be obtained.

[0070] The basic concepts have been described above. Obviously, for those skilled in the art, the above detailed disclosure is only for example and does not constitute a limitation of this specification. Although not explicitly stated here, those skilled in the art may make various modifications, improvements and corrections to this specification. Such modifications, improvements and corrections are suggested in this specification, so such modifications, improvements and corrections still belong to the spirit and scope of the exemplary embodiments of this specification.

[0071] At the same time, this specification uses specific words to describe the embodiments of this specification. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of this specification. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures or characteristics in one or more embodiments of this specification can be appropriately combined.

[0072] Similarly, it should be noted that in order to simplify the description disclosed in this specification and thus help understand one or more embodiments of the invention, in the above description of the embodiments of this specification, multiple features are sometimes combined into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the subject matter of this specification are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0073] Finally, it should be understood that the embodiments described in this specification are only used to illustrate the principles of the embodiments of this specification. Other variations may also fall within the scope of this specification. Therefore, as an example and not a limitation, alternative configurations of the embodiments of this specification may be considered consistent with the teachings of this specification. Accordingly, the embodiments of this specification are not limited to the embodiments explicitly introduced and described in this specification.

Claims

1. A push button for disassembling and assembling a water tank and a main unit of a ventilation therapy device, characterized in that: The push button is disposed on the water tank, and the push button is configured to be pressed toward the inside of the water tank housing close to the water tank under the action of an external force, so that the water tank can be assembled to or disassembled from the host; wherein, The push key includes a push body, the push body includes a rebound structure, the rebound structure includes a fixed end and a free end arranged opposite to the fixed end, the rebound structure is used for: when the push key is pressed in a direction close to the inside of the water tank shell, the free end moves from a first position to a second position, and the rebound structure generates elastic deformation; when the external force is released, the free end moves from the second position to the first position, and the rebound structure restores the deformation to drive the push key to rebound and reset in a direction away from the inside of the water tank shell, so that the water tank is connected to the host or reset after being disassembled.

2. The push button according to claim 1, characterized in that: The push button also includes a connecting structure, which is arranged at one end of the pressing body close to the host, and the connecting structure is detachably connected to the host. When the pressing body is pressed in a direction close to the inside of the water tank shell, the connecting structure moves in a direction close to the inside of the water tank shell, and the connecting structure is separated from the host.

3. The push button according to claim 2, characterized in that: The pressing body includes a pressing structure. When the pressing structure is pressed toward the direction close to the inside of the water tank shell, the connecting structure moves toward the direction close to the inside of the water tank shell, so that the connecting structure is separated from the docking position on the main unit located above it.

4. The push button according to claim 3, characterized in that: The connecting structure includes a connecting piece and a snap-on protrusion, wherein the connecting piece is connected to the end of the pressing body, and the snap-on protrusion is arranged at the end of the connecting piece away from the pressing body, and the snap-on protrusion is used to snap on or separate from the docking position of the host; the connecting piece has a preset length, and the docking position is arranged on the inner surface of the shell of the host, and the setting position of the docking position corresponds to the preset length of the connecting piece, and the docking position is provided with a groove snapped with the snap-on protrusion.

5. The push button according to claim 4, characterized in that: The preset length range of the connecting piece is 5mm-25mm.

6. The push button according to claim 3, characterized in that: The pressing structure is arranged between the free end and the fixed end of the rebound structure.

7. The push button according to claim 1, characterized in that: The pressing area on the pressing key that is acted upon by the external force is located in the middle area in the length direction of the pressing body.

8. The push button according to claim 3, characterized in that: The free end of the rebound structure abuts against one of the water tank housing surface or the pressing structure surface, and the fixed end is fixedly connected to the other of the water tank housing surface or the pressing structure surface.

9. The push button according to claim 7, characterized in that: The force center of the rebound structure corresponds to the middle area of ​​the pressing body in the length direction.

10. The push button according to any one of claims 1-5, 7-9, characterized in that: The resilient structure includes at least one of an elastic arm and an elastic member; The elastic arm is configured such that: when the push button is pressed toward the direction close to the inside of the water tank housing, the free end moves toward the direction away from the fixed end, from the first position to the second position, and the elastic arm generates elastic deformation; when the external force is released, the free end moves toward the direction close to the fixed end, from the second position to the first position, and the elastic arm recovers its deformation; The elastic member is configured as follows: when the push button is pressed in a direction close to the inside of the water tank shell, the free end moves from the first position to the second position, the height of the elastic member decreases and elastic deformation occurs; when the external force is released, the free end moves from the second position to the first position, the height of the elastic member increases and the deformation is restored.

11. The push button according to claim 10, characterized in that: The fixed end of the elastic arm is fixedly connected to one of the side of the push key close to the interior of the water tank shell or the outer surface of the water tank shell, and the free end of the elastic arm abuts against the side of the push key close to the interior of the water tank shell or the other of the outer surface of the water tank shell. When the push key is pressed in a direction close to the interior of the water tank shell or after the external force is released, the free end slides relative to the side of the push key close to the interior of the water tank shell or the other of the outer surface of the water tank shell.

12. The push button according to claim 11, characterized in that: The elastic arm includes at least one first elastic arm and / or at least one second elastic arm, The first fixed end of the first elastic arm is fixed to a side of the push button close to the inside of the water tank housing, and the first free end of the first elastic arm abuts against the outer surface of the water tank housing. When the push button is pressed in a direction close to the inside of the water tank housing or the external force is released, the first free end slides relative to the upper surface of the water tank housing. The second fixed end of the second elastic arm is fixed to the outer surface of the water tank shell, and the second free end of the second elastic arm abuts against the side of the push key close to the inside of the water tank shell. When the push key is pressed in a direction close to the inside of the water tank shell or after the external force is released, the second free end and the side of the push key close to the inside of the water tank shell slide relative to each other.

13. The push button according to claim 10, characterized in that: The fixed end of the elastic member is fixedly connected to one of the side of the push button close to the inside of the water tank shell or the outer surface of the water tank shell, and the free end of the elastic member abuts against the side of the push button close to the inside of the water tank shell or the other of the outer surface of the water tank shell.

14. The push button according to claim 13, characterized in that: A connecting protrusion is provided on one side of the push button close to the inside of the water tank shell or on the outer surface of the water tank shell, and the connecting protrusion is connected to the elastic member.

15. The push button according to any one of claims 1-5, 7-9, characterized in that: At least one of a limiting structure and a guiding structure is also provided between the push button and the outer surface of the water tank housing, wherein: The limiting structure is used to limit the range of movement of the push button in a direction away from the inside of the water tank housing; The guide structure is used to guide the push key to move along a preset path.

16. The push button according to claim 15, characterized in that: The limiting structure includes a limiting member and a limiting groove. The limiting member is provided on one side of the push button close to the interior of the water tank shell or on one of the outer surfaces of the water tank shell. The limiting groove is provided on one side of the push button close to the interior of the water tank shell or on the other of the outer surfaces of the water tank shell. The limiting member is located in the limiting groove and can move in the limiting groove toward and / or away from the interior of the water tank shell.

17. The push button according to claim 15, characterized in that: The guide structure includes a guide member and a guide groove. The guide member is provided on one side of the push button close to the interior of the water tank shell or on the outer surface of the water tank shell, and the guide groove is provided on one side of the push button close to the interior of the water tank shell or on the other outer surface of the water tank shell. The guide member can move in the guide groove in a direction close to and / or away from the interior of the water tank shell.

18. A water tank, characterized in that: Comprising a push key as described in any one of claims 1-17.

19. The water tank according to claim 18, characterized in that The outer surface of the water tank shell includes a recessed structure, the push button is accommodated in the recessed structure, and the rebound structure is arranged between a side of the push button close to the inside of the water tank shell and a bottom wall of the recessed structure.

20. A ventilation therapy device, characterized in that: Comprising a water tank as described in any one of claims 18-19.

21. A push button for disassembling and assembling a water tank and a main unit of a ventilation therapy device, characterized in that: The push button is disposed on the water tank, and the push button is configured to be pressed toward the inside of the water tank housing close to the water tank under the action of an external force, so that the water tank can be assembled to or disassembled from the host; wherein, The push button includes a push body, the push body includes a rebound structure, the rebound structure includes an elastic arm, the elastic arm includes a free end and a fixed end arranged opposite to the free end, and the elastic arm is configured as follows: when the push button is pressed in a direction close to the inside of the water tank shell, the free end slides in a direction away from the fixed end, and the elastic arm generates elastic deformation; when the external force is released, the free end slides in a direction close to the fixed end, and the elastic arm restores the deformation, so that the water tank is connected to the host or reset after being disassembled.

22. The push button according to claim 21, characterized in that: The push button also includes a connecting structure, which is arranged at one end of the pressing body close to the host, and the connecting structure is detachably connected to the host. When the pressing body is pressed in a direction close to the inside of the water tank shell, the connecting structure moves in a direction close to the inside of the water tank shell, and the connecting structure is separated from the host.

23. The push button according to claim 22, characterized in that: The pressing body includes a pressing structure. When the pressing structure is pressed toward the direction close to the inside of the water tank shell, the connecting structure moves toward the direction close to the inside of the water tank shell, so that the connecting structure is separated from the docking position on the main unit located above it.

24. The push button according to claim 23, characterized in that: The connecting structure includes a connecting piece and a snap-on protrusion, wherein the connecting piece is connected to the end of the pressing body, and the snap-on protrusion is arranged at the end of the connecting piece away from the pressing body, and the snap-on protrusion is used to snap on or separate from the docking position of the host; the connecting piece has a preset length, and the docking position is arranged on the inner surface of the shell of the host, and the setting position of the docking position corresponds to the preset length of the connecting piece, and the docking position is provided with a groove snapped with the snap-on protrusion.

25. The push button according to claim 24, characterized in that: The preset length range of the connecting piece is 5mm-25mm.

26. The push button according to claim 21, characterized in that: The pressing area on the pressing key that is acted upon by the external force is located in the middle area in the length direction of the pressing body.

27. The push button according to claim 26, characterized in that: The force center of the elastic arm corresponds to the middle area of ​​the pressing body in the length direction.

28. The push button according to any one of claims 21 to 27, characterized in that: The fixed end of the elastic arm is fixedly connected to one of the side of the push key close to the interior of the water tank shell or the outer surface of the water tank shell, and the free end of the elastic arm abuts against the side of the push key close to the interior of the water tank shell or the other of the outer surface of the water tank shell. When the push key is pressed in a direction close to the interior of the water tank shell or after the external force is released, the free end slides relative to the side of the push key close to the interior of the water tank shell or the other of the outer surface of the water tank shell.

29. The push button according to claim 28, characterized in that: The elastic arm includes at least one first elastic arm and / or at least one second elastic arm, The first fixed end of the first elastic arm is fixed to a side of the push button close to the inside of the water tank housing, and the first free end of the first elastic arm abuts against the outer surface of the water tank housing. When the push button is pressed in a direction close to the inside of the water tank housing or the external force is released, the first free end slides relative to the upper surface of the water tank housing. The second fixed end of the second elastic arm is fixed to the outer surface of the water tank shell, and the second free end of the second elastic arm abuts against the side of the push key close to the inside of the water tank shell. When the push key is pressed in a direction close to the inside of the water tank shell or after the external force is released, the second free end and the side of the push key close to the inside of the water tank shell slide relative to each other.

30. The push button according to any one of claims 21 to 27, characterized in that: At least one of a limiting structure and a guiding structure is also provided between the push button and the outer surface of the water tank housing, wherein: The limiting structure is used to limit the range of movement of the push button in a direction away from the inside of the water tank housing; The guide structure is used to guide the push key to move along a preset path.

31. The push button according to claim 30, characterized in that: The limiting structure includes a limiting member and a limiting groove. The limiting member is provided on one side of the push button close to the interior of the water tank shell or on one of the outer surfaces of the water tank shell. The limiting groove is provided on one side of the push button close to the interior of the water tank shell or on the other of the outer surfaces of the water tank shell. The limiting member is located in the limiting groove and can move in the limiting groove toward and / or away from the interior of the water tank shell.

32. The push button according to claim 30, characterized in that: The guide structure includes a guide member and a guide groove. The guide member is provided on one side of the push button close to the interior of the water tank shell or on the outer surface of the water tank shell, and the guide groove is provided on one side of the push button close to the interior of the water tank shell or on the other outer surface of the water tank shell. The guide member can move in the guide groove in a direction close to and / or away from the interior of the water tank shell.

33. A water tank, characterized in that: Comprising a push key as described in any one of claims 21-32.

34. The water tank according to claim 33, characterized in that The outer surface of the water tank shell includes a recessed structure, the push button is accommodated in the recessed structure, and the rebound structure is arranged between a side of the push button close to the inside of the water tank shell and a bottom wall of the recessed structure.

35. A ventilation therapy device, characterized in that: Comprising a water tank as described in any one of claims 33-34.

36. A push button for disassembling and assembling a water tank and a main unit of a ventilation therapy device, characterized in that: The push button is disposed on the water tank, and the push button is configured to be pressed toward the inside of the water tank housing close to the water tank under the action of an external force, so that the water tank can be assembled to or disassembled from the host; wherein, The push button includes a push body, the push body includes a rebound structure, the rebound structure includes an elastic member, and the elastic member is configured as follows: when the push button is pressed in a direction close to the inside of the water tank shell, the height of the elastic member decreases and elastic deformation occurs; when the external force is released, the height of the elastic member increases and the deformation is restored, so that the water tank is connected to the host or reset after being disassembled.

37. The push button according to claim 36, characterized in that: The push button also includes a connecting structure, which is arranged at one end of the pressing body close to the host, and the connecting structure is detachably connected to the host. When the pressing body is pressed in a direction close to the inside of the water tank shell, the elastic member is compressed, and the connecting structure moves in a direction close to the inside of the water tank shell. The connecting structure moves along the pressing direction until it is separated from the host.

38. The push button according to claim 37, characterized in that: The pressing body includes a pressing structure. When the pressing structure is pressed toward the direction close to the inside of the water tank shell, the connecting structure moves toward the direction close to the inside of the water tank shell, so that the connecting structure is separated from the docking position on the main unit located above it.

39. The push button according to claim 38, characterized in that: The connecting structure includes a connecting piece and a snap-on protrusion, wherein the connecting piece is connected to the end of the pressing body, and the snap-on protrusion is arranged at the end of the connecting piece away from the pressing body, and the snap-on protrusion is used to snap on or separate from the docking position of the host; the connecting piece has a preset length, and the docking position is arranged on the inner surface of the shell of the host, and the setting position of the docking position corresponds to the preset length of the connecting piece, and the docking position is provided with a groove snapped with the snap-on protrusion.

40. The push button according to claim 39, characterized in that The preset length range of the connecting piece is 5mm-25mm.

41. The push button according to claim 36, characterized in that: The pressing area on the pressing key that is acted upon by the external force is located in the middle area in the length direction of the pressing body.

42. The push button according to claim 41, characterized in that The force center of the elastic member corresponds to the middle area of ​​the pressing body in the length direction.

43. The push button according to any one of claims 36 to 42, characterized in that: One end of the elastic member is fixedly connected to one of the side of the push key close to the inside of the water tank shell or the outer surface of the water tank shell, and the other end of the elastic member abuts against the side of the push key close to the inside of the water tank shell or the other of the outer surface of the water tank shell.

44. The push button according to claim 43, characterized in that The one end of the elastic member is connected to one of the side of the push button close to the inside of the water tank shell or the outer surface of the water tank shell in a plug-in connection.

45. The push button according to claim 44, characterized in that A connecting protrusion is provided on one side of the push button close to the inside of the water tank shell or on the outer surface of the water tank shell, and the connecting protrusion is connected to the elastic member.

46. ​​The push button according to any one of claims 36 to 42, characterized in that: At least one of a limiting structure and a guiding structure is also provided between the pressing key and the outer surface of the water tank housing, wherein: The limiting structure is used to limit the range of movement of the push button in a direction away from the inside of the water tank housing; The guide structure is used to guide the push key to move along a preset path.

47. The push button according to claim 46, characterized in that The limiting structure includes a limiting member and a limiting groove. The limiting member is provided on one side of the push button close to the interior of the water tank shell or on one of the outer surfaces of the water tank shell. The limiting groove is provided on one side of the push button close to the interior of the water tank shell or on the other of the outer surfaces of the water tank shell. The limiting member is located in the limiting groove and can move in the limiting groove toward and / or away from the interior of the water tank shell.

48. The push button according to claim 46, characterized in that The guide structure includes a guide member and a guide groove. The guide member is provided on one side of the push button close to the interior of the water tank shell or on the outer surface of the water tank shell, and the guide groove is provided on one side of the push button close to the interior of the water tank shell or on the other outer surface of the water tank shell. The guide member can move in the guide groove in a direction close to and / or away from the interior of the water tank shell.

49. A water tank, characterized in that: Comprising a push key as described in any one of claims 36-48.

50. The water tank according to claim 49, characterized in that The outer surface of the water tank shell includes a recessed structure, the push button is accommodated in the recessed structure, and the rebound structure is arranged between a side of the push button close to the inside of the water tank shell and a bottom wall of the recessed structure.

51. A ventilation therapy device, characterized in that: Comprising a water tank as described in any one of claims 49-50.

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