Water tank for breathing machine and breathing machine

Abstract

The embodiment of the utility model provides a water tank for a breathing machine and the breathing machine. The water tank comprises a shell and a pressing key arranged on the outer surface of the shell, and the pressing key is configured to be capable of being pressed in the direction close to the interior of the shell under the action of external force so that the water tank can be assembled to or disassembled from the breathing machine host; wherein the pressing key comprises a springback structure, the springback structure comprises an elastic piece, and the elastic piece is configured in the mode that when the pressing key is pressed in the direction close to the interior of the shell, the height of the elastic piece is reduced, and elastic deformation occurs; after the external force is released, the height of the elastic part is increased and the deformation is recovered, so that the water tank is fixed to the respirator host or is reset after being detached. Through the arrangement of the elastic piece, the pressing key can be automatically reset after being pressed, additional operation is not needed, and the steps are simple.

Description

[0001] Description of the case

[0002] This application is a divisional application filed for the Chinese application with an application date of April 25, 2023, application number 202320965661.2, and application name “A water tank for a ventilator and a ventilator”. Technical Field

[0003] The present specification relates to the technical field of medical devices, and in particular to a water tank for a ventilator and a ventilator. Background Art

[0004] A ventilator is a device that can replace, control or change a person's normal physiological breathing, increase lung ventilation, improve respiratory function, and reduce respiratory function consumption. Currently, ventilators are widely used to treat sleep apnea or other respiratory disorders. In actual use, in order to ensure that patients can use the ventilator normally for a long time (for example, about 10 hours), it is necessary to reduce the stimulation of cold and dry gas on the respiratory mucosa. Therefore, most ventilators are equipped with a humidification water tank. Water vapor is generated by heating water, making the gas inhaled into the patient's body warm and moist.

[0005] Therefore, it is desired to provide a water tank that can be used in a ventilator, and a ventilator comprising the water tank. Utility Model Content

[0006] Some embodiments of the present specification provide a water tank for a ventilator, which includes a shell and a push button arranged on the outer surface of the shell, wherein the push button is configured to be able to be pressed in a direction close to the inside of the shell under the action of an external force, so that the water tank can be assembled to or removed from the ventilator host; wherein the push button includes a rebound structure, and the rebound structure is used for: when the push button is pressed in a direction close to the inside of the shell, the rebound structure generates elastic deformation; when the external force is released, the rebound structure restores the deformation and drives the push button to rebound and reset in a direction away from the inside of the shell, so that the water tank is fixed to the ventilator host or reset after disassembly.

[0007] In some embodiments, the push button also includes a connecting structure, which is arranged at one end of the push button close to the ventilator host. The connecting structure is detachably connected to the ventilator host. When the push button is pressed in a direction close to the inside of the shell, the connecting structure is separated from the ventilator host.

[0008] In some embodiments, the rebound structure includes at least one of an elastic arm and an elastic member; the elastic arm includes a free end and a fixed end, and the elastic arm is configured as follows: when the push key is pressed in a direction close to the interior of the shell, the free end slides in a direction away from the fixed end, and the elastic arm produces 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; the elastic member is configured as follows: when the push key is pressed in a direction close to the interior of the 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.

[0009] In some embodiments, the fixed end of the elastic arm is fixedly connected to one of the side of the push key closer to the interior of the shell or the outer surface of the shell, and the free end of the elastic arm abuts against the side of the push key closer to the interior of the shell or the other of the outer surface of the shell, and when the push key is pressed in a direction closer to the interior of the shell or after the external force is released, the free end slides relative to the side of the push key closer to the interior of the shell or the other of the outer surface of the shell.

[0010] In some embodiments, 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 the side of the push key close to the interior of the shell, the first free end of the first elastic arm abuts against the outer surface of the shell, and when the push key is pressed in a direction close to the interior of the shell or the external force is released, the first free end slides relative to the upper surface of the shell; the second fixed end of the second elastic arm is fixed to the outer surface of the shell, the second free end of the second elastic arm abuts against the side of the push key close to the interior of the shell, and when the push key is pressed in a direction close to the interior of the shell or the external force is released, the second free end slides relative to the side of the push key close to the interior of the shell.

[0011] In some embodiments, one end of the elastic member is fixedly connected to one of the side of the push key close to the interior of the shell or the outer surface of the shell, and the other end of the elastic member is abutted against one of the side of the push key close to the interior of the shell or the outer surface of the shell.

[0012] In some embodiments, a connecting protrusion is provided on one side of the push button close to the inside of the shell or on one of the outer surfaces of the shell, and the connecting protrusion is connected to the elastic member.

[0013] In some embodiments, at least one of a limiting structure and a guiding structure is further provided between the push key and the outer surface of the shell, wherein the limiting structure is used to limit the range of movement of the push key away from the interior of the shell; and the guiding structure is used to guide the push key to move along a preset path.

[0014] In some embodiments, 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 shell or one of the outer surfaces of the shell, the limiting groove is provided on one side of the push button close to the interior of the shell or the other of the outer surfaces of the shell, the limiting member is located in the limiting groove and can move in the limiting groove in a direction closer to and / or away from the interior of the shell.

[0015] In some embodiments, 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 shell or one of the outer surfaces of the shell, the guide groove is provided on one side of the push button close to the interior of the shell or the other of the outer surfaces of the shell, and the guide member can move in the guide groove in a direction closer to and / or away from the interior of the shell.

[0016] In some embodiments, the outer surface of the shell includes a recessed structure, the push key is accommodated in the recessed structure, and the rebound structure is arranged between a side of the push key close to the inside of the shell and a bottom wall of the recessed structure.

[0017] Some embodiments of the present specification also provide a ventilator, which includes the water tank described in any one of the above items.

[0018] 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 realizes the detachable connection between the water tank and the ventilator host, reduces the difficulty of the water tank disassembly operation, and allows the connection method between the water tank and the ventilator host 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) By the movable setting of the push button 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 ventilator host, which not only improves the diversity of the connection methods between the water tank and the ventilator host, but also reduces the difficulty of the water tank entering and exiting the ventilator host, making the disassembly and assembly of the water tank easier. 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 possible beneficial effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] 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:

[0020] Figure 1 is a schematic diagram of an exemplary appearance of a water tank according to some embodiments of this specification;

[0021] Figure 2 is a schematic diagram of an exemplary matching structure of a push key and a recessed structure according to some embodiments of this specification;

[0022] Figure 3 is an exemplary structural diagram of a press key according to some embodiments of this specification;

[0023] Figure 4 is a schematic diagram of an exemplary structure of a press key from another perspective according to some embodiments of this specification;

[0024] Figure 5 is an exemplary structural schematic diagram of a recessed structure according to some embodiments of this specification;

[0025] Figure 6 is an exemplary structural diagram of another recessed structure shown in some embodiments of this specification.

[0026] Explanation of the accompanying drawings: 100, water tank; 110, shell; 120, recessed structure; 121, limiting groove; 122, guide groove; 125, second elastic arm; 125-1, second fixed end; 125-2, second free end; 150, pressing key; 151, pressing surface; 151-1, pressing stripe; 152, buckle part; 153, limiting member; 154, guide member; 154-1, reinforcing protrusion; 155, first elastic arm; 155-1, first fixed end; 155-2, first free end; 156, connecting protrusion; 160, elastic member. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the technical solutions of the embodiments of this specification, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of this specification. For ordinary technicians in this field, this specification can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0028] It should be understood that the "system", "device", "unit" and / or "module" used herein is a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions. As shown in this specification and claims, unless the context clearly indicates an exception, the words "one", "a", "a" and / or "the" do not specifically refer to the singular, but may also include the plural. Generally speaking, the terms "comprises" and "includes" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list, and the method or device may also include other steps or elements. The relevant definitions of other terms will be given in the following description.

[0029] A ventilator is a device that can replace, control or change a person's normal physiological breathing, increase lung ventilation, improve respiratory function, and reduce respiratory function consumption. Currently, ventilators are widely used to treat sleep apnea or other respiratory disorders. During the use of the ventilator, in order to ensure that the patient can use the ventilator normally for a long time (for example, about 10 hours), it is necessary to reduce the stimulation of the respiratory mucosa by cold and dry gases, so most ventilators are equipped with a humidifying water tank. The ventilators currently used on the market are difficult to disassemble from the main unit and are laborious to disassemble.

[0030] Some embodiments of the present specification provide a water tank for a ventilator, which mainly includes a shell and a push button arranged on the outer surface of the shell. The push button is configured to: be able to be pressed in a direction close to the inside of the shell under the action of an external force, so that the water tank can be assembled to or disassembled from the ventilator host; when the external force is released, the push button can rebound and reset in a direction away from the inside of the shell, so that the water tank is fixed to the ventilator host or reset after disassembly. By setting the push button, the water tank and the ventilator host can be detachably arranged, reducing the structural complexity of the water tank. Moreover, by the movable setting of the push button, the water tank can remain stable during the disassembly process and is not easy to shake relative to the ventilator host, so that the connection method of the water tank and the ventilator host has a variety of options, such as surface connection or plug-in connection. At the same time, since the water tank remains stable and is not easy to change position during the disassembly process, it also reduces the difficulty of the water tank entering the ventilator host, making the disassembly and assembly of the water tank easier.

[0031] Some embodiments of this specification also provide a ventilator, which includes the above-mentioned water tank. The water tank of the ventilator is detachable, which reduces the difficulty of cleaning. The water tank is easy to disassemble and assemble, and there are multiple connection methods between the water tank and the ventilator host.

[0032] Figure 1 is a schematic diagram of an exemplary appearance of a water tank according to some embodiments of this specification, Figure 2is a schematic diagram of an exemplary matching structure of a pressing key and a recessed structure according to some embodiments of this specification, Figure 3 is an exemplary structural diagram of a press key according to some embodiments of this specification, Figure 4 is a schematic diagram of an exemplary structure of a press key from another perspective according to some embodiments of this specification, Figure 5 is an exemplary structural diagram of a recessed structure according to some embodiments of this specification, Figure 6 FIG. 1 is an exemplary structural diagram of another concave structure according to some embodiments of this specification. Figure 1-Figure 6 The structure of the water tank 100 will be described.

[0033] like Figure 1 As shown, some embodiments of this specification provide a water tank 100 for a ventilator, which mainly includes a housing 110 and a push button 150 arranged on the outer surface of the housing 110. Figure 1 and Figure 2 , wherein the push button 150 is configured to be pressed toward the direction close to the inside of the housing 110 under the action of an external force, so that the water tank 100 can be assembled to or disassembled from the ventilator host. In some embodiments, the push button 150 may include a rebound structure (not shown in the figure), which can be used to: when the push button 150 is pressed toward the direction close to the inside of the housing 110, the rebound structure produces elastic deformation; when the external force is released, the rebound structure recovers the deformation and drives the push button 150 to rebound and reset in the direction away from the inside of the housing 110, so that the water tank 100 is fixed to the ventilator host or reset after disassembly. Therefore, during the assembly or release process of the water tank 100, the water tank 100 as a whole can remain stable (for example, the relative positions of the various parts of the housing 110 remain unchanged, etc.), which facilitates the connection between the water tank 100 and the ventilator host, reduces the difficulty of connection, and enables the water tank 100 and the ventilator host to adopt a variety of connection methods (for example, surface connection, insertion, etc.).

[0034] In some embodiments, the push button 150 may be disposed on the upper surface of the housing 110, and the push button 150 may be pressed downward under the action of an external force; after the external force is released, the push button 150 may rebound upward and reset under the drive of the rebound structure. In some embodiments, the push button 150 may also be disposed on other surfaces of the housing 110, such as the bottom surface, the front surface, the side surface, etc. In some embodiments, the number of push buttons 150 may be one or more. For example, the number of push buttons 150 may be one, disposed on the upper surface or the front surface of the housing 110, etc. For another example, the number of push buttons 150 may be two, respectively disposed on different surfaces of the housing 110. Considering the operability of the water tank 100 and the ventilator host during actual disassembly and assembly, when the number of push buttons 150 is too large, it will cause the operator to have greater difficulty in operation, and it is difficult to operate with one hand, so the number of push buttons 150 may be one or two. Moreover, when the number of push buttons 150 is two, the two push buttons 150 are respectively disposed on two opposite surfaces of the housing 110, such as the upper surface and the bottom surface. For ease of description, the structure of the push key 150 and the housing 110 is described below by taking the push key 150 disposed on the upper surface of the housing 110 as an example. It should be noted that the structure of the push key 150 disposed on other surfaces of the housing 110 is the same or similar to the structure of the push key 150 disposed on the upper surface of the housing 110, and will not be described in detail in this specification.

[0035] In some embodiments, the length direction of the housing 110 can be defined as the X direction, the width direction of the housing 110 can be defined as the Y direction, and the height direction of the housing 110 can be defined as the Z direction. Moreover, the right is the X direction, the left is the opposite direction of the X direction, and the housing 110 enters the ventilator 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 150 moves downward, that is, the push button 150 moves in the opposite direction of the Z direction; the push button 150 moves upward, that is, the push button 150 moves in the Z direction. The front is the opposite direction of the Y direction, and the back is the Y direction.

[0036] In some embodiments, the push button 150 further includes a connection structure 152, and the connection structure 152 is detachably connected to the ventilator host. When the push button 150 is pressed in a direction close to the inside of the housing 110 (e.g., downward), the connection structure 152 is separated from the ventilator host, so that the water tank 100 can be detached from the ventilator host. When the push button 150 is reset, the connection structure 152 can be connected to the ventilator host, thereby achieving the connection and fixation of the water tank 100 and the ventilator host.

[0037] like Figure 2As shown, in some embodiments, the connection structure 152 is arranged at one end of the push button 150 close to the ventilator host, that is, in the X direction, the connection structure 152 is arranged on the left side of the push button 150, so as to facilitate the connection between the connection structure 152 and the ventilator host. In some embodiments, the connection structure 152 may include a buckle protrusion, and the ventilator host may include a groove matching the buckle protrusion, and the buckle protrusion and the groove only have a degree of freedom of movement along the moving direction of the push button 150 (for example, the Z direction, that is, the up and down direction). During the installation process of the water tank 100, when the push button 150 is pressed in a direction close to the inside of the housing 110 (for example, downward) by an external force, the buckle protrusion is synchronously moved in a direction close to the inside of the housing 110 (for example, downward), and at this time, the water tank 100 can be moved to the left (that is, in the opposite direction of the X direction) into the ventilator host until the buckle protrusion moves to a position corresponding to the groove. When the external force is released, the push button 150 rebounds and resets in a direction away from the inside of the housing 110 (for example, upward), and the buckle protrusion enters the groove to achieve snap-on fixation, thereby locking the connection between the water tank 100 and the ventilator mainframe. During the disassembly and assembly of the water tank 100, when the push button 150 is pressed in a direction close to the inside of the housing 110 (for example, downward) by an external force, the buckle protrusion moves in a direction close to the inside of the housing 110 (for example, downward) and moves out of the groove, thereby unlocking the connection between the water tank 100 and the ventilator mainframe. At this time, the water tank 100 can be moved to the right (i.e., along the X direction) out of the ventilator mainframe, thereby separating the water tank 100 from the ventilator mainframe. After the water tank 100 is disassembled, the external force can be released and the push button 150 can be reset.

[0038] In some embodiments, the connection structure 152 and the ventilator host may also include other connection methods that can be locked or unlocked by movement. For example, the connection structure 152 and the ventilator host can be magnetically connected. When the push button 150 moves in a direction away from the interior of the shell 110 (for example, upward, i.e., the Z direction) until the connection structure 152 and the ventilator host are in contact with the magnetic connection, the connection between the water tank 100 and the ventilator host is locked; when the push button 150 moves in a direction close to the interior of the shell 110 (for example, downward, i.e., the opposite direction of the Z direction) until the connection structure 152 and the ventilator host are separated, and the connection structure 152 does not automatically approach the ventilator host under the action of the magnetic force, the connection between the water tank 100 and the ventilator host can be unlocked.

[0039] Please refer to Figure 2 , Figure 5 and Figure 6In some embodiments, the upper surface of the housing 110 includes a recessed structure 120, and the push button 150 is accommodated in the recessed structure 120. The push button 150 can move in the recessed structure 120 toward or away from the interior of the housing 110 (e.g., upward or downward), thereby locking or unlocking the connection between the water tank 110 and the ventilator host. The rebound structure is disposed between a side of the push button 150 close to the interior of the housing 110 (i.e., the lower side) and the bottom wall of the recessed structure 120. The rebound structure can drive the push button 150 to move in a direction away from the bottom wall of the recessed structure 120 (i.e., away from the interior of the housing 110, upward) during the process of restoring the deformation.

[0040] Please refer to Figure 2 and Figure 3 In some embodiments, the push button 150 includes a push surface 151, which is disposed on a surface of the push button 150 that is away from the interior of the housing 110 (i.e., the upper surface) and is used to provide a pressing area for the user. In some embodiments, the connection structure 152 can be integrally formed with the push surface 151 to reduce the steps and difficulty of manufacturing the push button 150.

[0041] Please refer to Figure 3 In some embodiments, a pressing stripe 151-1 may be provided on the pressing surface 151. A plurality of pressing stripes 151-1 may be arranged at intervals along the X direction. The pressing stripes 151-1 may serve as a tactile prompt to remind the user of the pressing position of the pressing surface 151. At the same time, the pressing stripes 151-1 may also serve to increase friction and prevent slipping, thereby preventing the user from slipping on the pressing surface 151 during operation, and improving the operational safety of the water tank 100.

[0042] Please refer to Figure 2 , Figure 3 and Figure 4 In some embodiments, at least one of a limiting structure and a guiding structure is further provided between the push button 150 and the outer surface of the housing 110 (e.g., the recessed structure 120). The limiting structure can be used to limit the range of movement of the push button 150 in a direction away from the interior of the housing 110 (e.g., upward), and the push button 150 can be connected to the recessed structure 120 through the limiting structure. The guiding structure can be used to guide the push button 150 to move along a preset path.

[0043] In some embodiments, the number of limiting structures may be two or more. In some embodiments, limiting structures may be respectively provided on both sides (front side and rear side) of the push key 150 in the width direction (i.e., the Y direction), and the number of limiting structures on both sides may be the same or different. Exemplarily, two limiting structures may be respectively provided on both sides of the push key 150 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 150 and the recessed structure 120. In some embodiments, one or more limiting structures may also be provided on the right side of the push key 150 in the X direction. In some embodiments, limiting structures may be provided on one or both sides or three sides of the front side, rear side and right side of the push key 150, and the number of limiting structures provided on each side may be the same or different.

[0044] In some embodiments, the limiting structure may include a limiting member 153 and a limiting groove 121. The limiting member 153 may be disposed on one of the side of the push button 150 close to the inside of the housing 110 (i.e., the lower side) or the outer surface of the housing 110 (e.g., the recessed structure 120), and the limiting groove 121 may be disposed on the other of the side of the push button 150 close to the inside of the housing 110 (i.e., the lower side) or the outer surface of the housing 110 (e.g., the recessed structure 120). For example, Figure 5 and Figure 6As shown, the limiting member 153 can be arranged on a side (i.e., the lower side) of the push key 150 close to the inside of the housing 110, the limiting groove 121 can be arranged in the recessed structure 120, and the limiting groove 121 can cooperate with the limiting member 153 to limit the push key 150 in the recessed structure 120 during the reset process of the push key 150. In some embodiments, the limiting member 153 is located in the limiting groove 121, and the limiting member 153 can move in the limiting groove 121 in a direction close to and / or away from the inside of the housing 110 (e.g., up and down directions). The height of the limiting groove 121 is the range of movement of the push key 150. In some embodiments, the limiting groove 121 is arranged on the inner wall of the recessed structure 120, and corresponds to the limiting member 153 one by one. That is, the setting position and setting number of the limiting groove 121 correspond to the setting position and setting number of the limiting member 153 one by one. Exemplarily, four limiting structures are arranged between the push key 150 and the recessed structure 120, wherein two limiting structures are arranged at intervals along the X direction at the front side of the push key 150 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 150 in the Y direction. At this time, the front side and the rear side of the push key 150 in the Y direction are respectively provided with two limiting members 153 arranged at intervals along the X direction; correspondingly, the two inner side walls of the recessed structure 120 in the Y direction may also be respectively provided with two limiting grooves 121 arranged at intervals along the X direction. In some embodiments, the limiting member 153 may include but is not limited to structures such as hooks, hooks, and blocks that can cooperate with the limiting grooves 121.

[0045] In some embodiments, the limiting groove 121 has a preset height in the Z direction, so that when the limiting member 153 moves in the limiting groove 121 to contact the inner wall of the end of the limiting groove 121 in the Z direction, the limiting member 153 is engaged in the limiting groove 121 and is engaged and engaged at the end edge of the limiting groove 121. At this time, the pressing surface 151 of the pressing key 150 can be flush with the outer surface (for example, the upper surface) of the shell 110, such as Figure 2 As shown, the pressing surface 151 is prevented from protruding or recessing relative to the outer surface of the housing 110 at the recessed structure 120, thereby preventing the pressing surface 151 from interfering with the connection between the water tank 100 and the ventilator host.

[0046] In some embodiments, the guide structure includes a guide member 154 and a guide groove 122. The guide member 154 can be disposed on one of the side of the push button 150 close to the inside of the housing 110 (i.e., the lower side) or the outer surface of the housing 110 (e.g., the recessed structure 120), and the guide groove 122 can be disposed on the other of the side of the push button 150 close to the inside of the housing 110 (i.e., the lower side) or the outer surface of the housing 110 (e.g., the recessed structure 120). For example, Figure 2 , Figure 3 and Figure 4As shown, the guide member 154 can be arranged on one side (e.g., the lower side) of the pressing surface 151 close to the inside of the housing 110, the guide groove 122 can be arranged in the recessed structure 120, and the guide member 154 can move in the direction (e.g., up and down direction) close to and / or away from the inside of the housing 110 in the guide groove 122. The guide member 154 can cooperate with the guide groove 122, and the guide groove 122 can be used as a preset path to guide the movement direction of the pressing key 150 during the pressing and rebounding process, so that the guide member 154 moves in the guide groove 122 during the movement of the pressing key 150, and the pressing key 150 is prevented from tilting in the X and / or Y directions during the movement, so that the pressing surface 151 can maintain stability in the X and / or Y directions, thereby improving the stability of the pressing key 150.

[0047] In some embodiments, the guide structure can be arranged in the estimated force point area (e.g., near the middle of the length direction) of the pressing surface 151. Through the above arrangement, the distance between the force position of the pressing surface 151 and the guide structure in the X direction can be reduced as much as possible, so that when the user presses the pressing surface 151, the force direction of the pressing key 150 can basically coincide with the extension direction (i.e., the Z direction or the opposite direction of the Z direction) of the guide structure (e.g., the guide member 154 and / or the guide groove 122), thereby reducing the friction during the movement of the pressing key 150 and reducing the difficulty of pressing.

[0048] Please refer to Figure 4 In some embodiments, a reinforcing protrusion 154-1 may be provided on one side of the guide member 154 away from the inner wall of the recessed structure 120, and the reinforcing protrusion 154-1 may be extended along the Z direction. The reinforcing protrusion 154-1 may strengthen the strength of the guide member 154 and reduce the possibility of the guide member 154 being broken or deformed by force. In some embodiments, the guide member 154 may be provided with a plurality of reinforcing protrusions 154-1, and the plurality of reinforcing protrusions 154-1 are spaced apart in the X direction.

[0049] Please refer to Figure 4 In some embodiments, a guide structure may be provided between the push button 150 and the recessed structure 120, and on both sides (front side and rear side) of the push button 150 in the Y direction. The two guide structures cooperate to guide the movement of the push button 150, thereby enhancing the stability of the push button 150. In some embodiments, in the X direction, the guide structure (e.g., the guide member 154 and / or the guide groove 122) may be located between two limiting structures (e.g., the limiting member 153 and / or the limiting groove 121), such as Figure 4 shown.

[0050] Please refer to Figure 5 and Figure 6In some embodiments, the setting position and setting number of the guide grooves 122 may correspond to the setting position and setting number of the guide members 154. Exemplarily, two guide structures are provided between the push key 150 and the recessed structure 120, one of which is provided at the front side of the push key 150 in the Y direction, and the other is provided at the rear side of the push key 150 in the Y direction. At this time, a guide member 154 may be provided on both sides (front side and rear side) of the push key 150 in the Y direction, respectively, and the guide members 154 on each side are provided in the estimated force point area of ​​the pressing surface 151 (for example, near the middle of the length direction); correspondingly, a corresponding guide groove 122 may be provided on the two inner side walls of the recessed structure 120 in the Y direction, respectively, and the guide groove 122 on each side may be provided at the corresponding position in the middle of the pressing surface 151.

[0051] Please refer to Figure 2-Figure 4 In some embodiments, the rebound structure may include at least one of an elastic arm (e.g., the first elastic arm 155 and / or the second elastic arm 125) and an elastic member 160. The elastic arm includes a free end and a fixed end, and the elastic arm is configured such that: when the push button 150 is pressed toward a direction close to the inside of the housing 110 (e.g., downward), the free end slides toward a direction away from the fixed end, and the elastic arm undergoes elastic deformation; when the external force is released, the free end slides toward a direction close to the fixed end, and the elastic arm recovers its deformation. The elastic member 160 is configured such that: when the push button 150 is pressed toward a direction close to the inside of the housing 110 (e.g., downward), the height of the elastic member 160 decreases and undergoes elastic deformation; when the external force is released, the height of the elastic member 160 increases and recovers its deformation.

[0052] 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 key 150 close to the inside of the housing 110 or the bottom wall of the recessed structure 120, and the free end of the elastic arm abuts against the other of the side (e.g., the lower side) of the push key 150 close to the inside of the housing 110 or the bottom wall of the recessed structure 120. When the push key 150 is pressed downward by an external force or after the external force is released, the free end and the other of the side (e.g., the lower side) of the push key 150 close to the inside of the housing 110 or the bottom wall of the recessed structure 120 slide relative to each other. When the push key 150 is pressed in a direction close to the inside of the housing 110 (e.g., downward) by an external force, the free end slides in a direction away from the fixed end, and the elastic arm generates elastic deformation and accumulates elastic potential energy. When the external force is released, the free end slides in a direction close to the fixed end, and the elastic arm restores the elastic deformation, driving the push key 150 to rebound and reset in a direction away from the inside of the housing 110 (e.g., upward). It should be noted that, in this specification, abutment means contact but no force, or contact and pre-pressure. As an example only, when the push button 150 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 120, which may mean that the free end just contacts the bottom wall of the recessed structure 120 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 120, and the first free end 155-2 is in a stressed state, the elastic arm undergoes elastic deformation under force, and the elastic arm accumulates elastic potential energy.

[0053] In some embodiments, the elastic arm may include at least one first elastic arm 155 and / or at least one second elastic arm 125. The first elastic arm 155 and / or the second elastic arm 125 may drive the push button 150 to rebound and reset in a direction away from the inside of the housing 110 (e.g., upward) after the push button 150 is pressed in a direction close to the inside of the housing 110 (e.g., downward).

[0054] In some embodiments, the first elastic arm 155 is disposed on a side (eg, a lower side) of the pressing surface 151 close to the interior of the housing 110. The first elastic arm 155 includes a first fixed end 155-1 and a first free end 155-2. Figure 4 The first fixed end 155-1 of the first elastic arm 155 is fixed to the side of the pressing key 150 opposite to the pressing surface 151 (i.e., the side of the pressing surface 151 close to the inside of the housing 110, such as the lower side), and the first free end 155-2 of the first elastic arm 155 abuts against the bottom wall of the recessed structure 120, as shown in FIG. Figure 2As shown. In some embodiments, when the push button 150 is pressed toward the direction close to the inside of the housing 110 (for example, downward) by an external force, the first free end 155-2 of the first elastic arm 155 can slide relative to the bottom wall of the recessed structure 120, and the first elastic arm 155 is deformed to accumulate elastic potential energy. In some embodiments, the first elastic arm 155 is arranged along the X direction; when the push button 150 is pressed toward the direction close to the inside of the housing 110 (for example, downward) by an external force, the first free end 155-2 of the first elastic arm 155 moves away from the first fixed end 155-1 along the X direction; correspondingly, the first free end 155-2 of the first elastic arm 155 approaches the first fixed end 155-1 in the Z direction. When the external force is released, the first elastic arm 155 releases its elastic potential energy, and the first free end 155-2 of the first elastic arm 155 slides on the bottom wall of the recessed structure 120, and the first free end 155-2 approaches the first fixed end 155-1 in the X direction, and the first free end 155-2 moves away from the first fixed end 155-1 in the Z direction, thereby driving the push key 150 to move in the Z direction away from the interior of the shell 110 (i.e., upward), so that the push key 150 returns to the position before being pressed.

[0055] In some embodiments, when the push key 150 is in a normal state (i.e., not pressed by external force), the first free end 155-2 maintains an abutment state with the bottom wall of the recessed structure 120, so that the push key 150 is subsequently pressed in a direction close to the inside of the shell 110 (for example, downward), and after the external force is released, the first elastic arm 155 can drive the push key 150 to return to its position before being pressed.

[0056] In some embodiments, the first free end 155-2 may be rounded. Figure 3 , Figure 4 The rounded corners can reduce the friction between the first free end 155 - 2 and the bottom wall of the recessed structure 120 , thereby reducing the difficulty of the first free end 155 - 2 sliding relative to the bottom wall of the recessed structure 120 .

[0057] In some embodiments, the number of the first elastic arms 155 can be two or more. Figure 4 In some embodiments, the number of the first elastic arms 155 can be two, and the two first elastic arms 155 are arranged in parallel and spaced apart along the Y direction to ensure that during the pressing and resetting process of the push key 150, the deformation of the two first elastic arms 155 can be kept consistent, thereby improving the stability of the push key 150.

[0058] Please refer to Figure 6In some embodiments, the structure and function of the second elastic arm 125 are similar or identical to those of the first elastic arm 155. For example, the second free end 125-2 of the second elastic arm 125 may also be rounded. In some embodiments, the second fixed end 125-1 of the second elastic arm 125 is fixed to the bottom wall of the recessed structure 120, and the second free end 125-2 of the second elastic arm 125 abuts against the side of the pressing key 150 away from the pressing surface 151 (i.e., the side of the pressing key 150 close to the inside of the housing 110, the lower side). When the pressing key 150 is pressed in a direction close to the inside of the housing 110 (e.g., downward) by an external force, the second free end 125-2 of the second elastic arm 125 slides relative to the pressing key 150, and the second elastic arm 125 deforms to accumulate elastic potential energy. When the external force is released, the second free end 125-2 of the second elastic arm 125 slides relative to the lower side of the push button 150, and the second elastic arm 125 recovers its deformation to release elastic potential energy, driving the push button 150 to rebound and reset in a direction away from the inside of the housing 110 (for example, upward). During the pressing and resetting process of the push button 150, the working process and principle of the second elastic arm 125 can refer to the relevant content of the first elastic arm 155, which will not be repeated here.

[0059] In some embodiments, the arrangement direction of the second elastic arm 125 may be parallel to the arrangement direction of the first elastic arm 155, and in the X direction, the position of the first fixed end 155-1 of the first elastic arm 155 corresponds to the position of the second free end 125-2 of the second elastic arm 125, and the position of the first free end 155-1 of the first elastic arm 155 corresponds to the position of the second fixed end 125-1 of the second elastic arm 125. Through the above arrangement, the forces applied by the second elastic arm 125 and the first elastic arm 155 to the push key 150 may offset each other in the X direction, thereby improving the stability of the push key 150.

[0060] In some embodiments, the number of the second elastic arms 125 can be two or more. Figure 6 In some embodiments, the number of the second elastic arms 125 can be two, and the two second elastic arms 125 are arranged in parallel and spaced apart along the Y direction to ensure that during the pressing and resetting process of the push key 150, the deformation of the two first elastic arms 155 can be kept consistent, thereby improving the stability of the push key 150.

[0061] In some embodiments, in the Y direction, the two second elastic arms 125 may be located between the two first elastic arms 155. In some embodiments, in the Y direction, the two first elastic arms 155 may be located between the two second elastic arms 125. In some embodiments, in the Y direction, the two first elastic arms 155 and the two second elastic arms 125 may be staggered with each other.

[0062] Please refer to Figure 2 In some embodiments, one end of the elastic member 160 may be fixedly connected to the lower side of the pressing surface 151 or the bottom wall of the recessed structure 120, that is, one end of the elastic member 160 is fixed, and the other end may abut against the other of the side of the pressing key 150 opposite to the pressing surface 151 (that is, the lower side of the pressing surface 151) or the bottom wall of the recessed structure 120. That is, one end of the elastic member 160 may be fixed to the lower side of the pressing surface 151, and the other end may abut against the bottom wall of the recessed structure 120; or, one end of the elastic member 160 may be fixed to the bottom wall of the recessed structure 120, and the other end may abut against the lower side of the pressing surface 151. When the pressing key 150 is pressed toward the direction close to the inside of the housing 110 (for example, downward) by an external force, the height of the elastic member 160 decreases and elastic deformation occurs, accumulating elastic potential energy. When the external force is released, the elastic member 160 begins to recover its deformation and drives the push button 150 to move in a direction away from the interior of the housing 110 (eg upward) and to return to the position before being pressed.

[0063] In some embodiments, one end of the elastic member 160 may be connected to the lower side of the pressing surface 151 or the bottom wall of the recessed structure 120 by plugging. Figure 2 and Figure 4 A connecting protrusion 156 may be provided on the side of the pressing key 150 opposite to the pressing surface 151 (i.e., the lower side of the pressing key 150) or the bottom wall of the recessed structure 120, and the connecting protrusion 156 may be connected to the elastic member 160. When the connecting protrusion 156 is inserted into the elastic member 160, the elastic member 160 is installed and fixed by the connecting protrusion 156. When the connecting protrusion 156 is pulled out from the elastic member 160, the elastic member 160 can be disassembled and replaced.

[0064] In some embodiments, the elastic member 160 may be disposed at a middle position between the recessed structure 120 and the push button 150 in the X direction (eg, Figure 2 , 4 As shown in FIG. 1 ), the push button 150 is prevented from tilting in the X direction, thereby improving the stability of the push button 150. At this time, in the X direction, the elastic member 160 may be located between the buckle portion 152 and the first free end 155-2 of the first elastic arm 155, as shown in FIG. Figure 2 and Figure 4 In some embodiments, the elastic member 160 may be disposed at a middle position between the recessed structure 120 and the push button 150 in the Y direction (eg, Figure 4 As shown in FIG. 1 , the two first elastic arms 155 can be respectively disposed on both sides of the elastic member 160 , and the two second elastic arms 125 can be respectively disposed on both sides of the elastic member 160 to enhance the stability of the push key 150 .

[0065] In some embodiments, the elastic member 160 may include an elastic material (such as silicone, etc.) or an elastic structure (such as a spring, etc.). In some embodiments, the elastic member 160 may be a spring, which has a long service life and is easy to replace.

[0066] In some embodiments, either the elastic member 160 or the second elastic arm 125 may be disposed in the recessed structure 120. In some embodiments, the elastic member 160 and the second elastic member 125 may be disposed in the recessed structure 120 at the same time.

[0067] Some embodiments of the present specification also provide a ventilator, which includes the water tank 100 mentioned above.

[0068] 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.

[0069] 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 water tank for a ventilator, It is characterized in that It comprises a shell and a push button arranged on the outer surface of the shell, wherein the push button is configured to be pressed toward the inside of the shell under the action of an external force, so that the water tank can be assembled to or disassembled from the ventilator host; wherein, The push button includes a rebound structure, and the rebound structure includes an elastic member, and the elastic member is configured such that: when the push button is pressed in a direction close to the inside of the 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 fixed to the ventilator host or reset after being disassembled; The estimated force point area on the push key that is acted upon by the external force is located in the middle of the length direction of the push key.

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

3. The water tank according to claim 1, It is 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 shell or the outer surface of the shell, and the other end of the elastic member abuts against the side of the push key close to the inside of the shell or the other of the outer surface of the shell.

4. The water tank according to claim 3, It is 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 shell or the outer surface of the shell in a plug-in connection.

5. The water tank according to claim 4, It is characterized in that A connecting protrusion is provided on one side of the push button close to the inside of the shell or on the outer surface of the shell, and the connecting protrusion is connected to the elastic member.

6. The water tank according to claim 1, It is 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 housing, wherein: The limiting structure is used to limit the range of movement of the push button in a direction away from the interior of the housing; The guide structure is used to guide the push key to move along a preset path.

7. The water tank according to claim 6, It is 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 shell or on one of the outer surfaces of the shell. The limiting groove is provided on one side of the push button close to the interior of the shell or on the other of the outer surfaces of the 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 shell.

8. The water tank according to claim 6, It is characterized in that The guiding structure includes a guiding member and a guiding groove. The guiding member is provided on one of the side of the pressing key close to the interior of the housing or the outer surface of the housing, and the guiding groove is provided on the other of the side of the pressing key close to the interior of the housing or the outer surface of the housing. The guiding member can move in the guiding groove in a direction close to and / or away from the interior of the housing.

9. A ventilator, characterized in that it includes a water tank as described in any one of claims 1-8.

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