A water tank for a ventilator and a ventilator

Abstract

This specification provides an embodiment of a water tank for a ventilator and a ventilator. The water tank includes a housing and a push button disposed on the outer surface of the housing. The push button is configured to be pressed towards the interior of the housing under external force, so that the water tank can be assembled to or disassembled from the ventilator main unit. The push button includes a spring-loaded structure, which is used to: when the push button is pressed towards the interior of the housing, the spring-loaded structure undergoes elastic deformation; when the external force is released, the spring-loaded structure restores its deformation, driving the push button to spring back to its original position away from the interior of the housing, thus fixing the water tank to the ventilator main unit or resetting it after disassembly. The push button design allows for a detachable connection between the water tank and the ventilator main unit, reducing the structural complexity of the water tank, ensuring stability during disassembly and minimizing positional changes, simplifying the installation and removal of the water tank.

Description

Technical Field

[0001] This manual relates to the field of medical device technology, and in particular to a water tank for a ventilator and a ventilator. Background Technology

[0002] A ventilator is a device that replaces, controls, or alters a person's normal physiological breathing, increases lung ventilation, improves respiratory function, and reduces respiratory strain. Currently, ventilators are widely used to treat sleep apnea or other respiratory disorders. In practical use, to ensure patients can use the ventilator normally for extended periods (e.g., around 10 hours), it's necessary to reduce the irritation of cold, dry air to the respiratory mucosa; therefore, most ventilators are equipped with a humidifier tank. This tank heats water to generate steam, making the inhaled air warm and humidified.

[0003] Therefore, it is desirable to provide a water tank that can be used in a ventilator, and a ventilator that includes the water tank. Summary of the Invention

[0004] This specification provides a water tank for a ventilator, comprising a housing and a push button disposed on the outer surface of the housing. The push button is configured to be pressed towards the interior of the housing under external force, so that the water tank can be assembled to or disassembled from the ventilator main unit. The push button includes a spring-loaded structure, which is configured to: when the push button is pressed towards the interior of the housing, the spring-loaded structure undergoes elastic deformation; when the external force is released, the spring-loaded structure restores its deformation, driving the push button to spring back to its original position away from the interior of the housing, thereby fixing the water tank to the ventilator main unit or resetting it after disassembly.

[0005] In some embodiments, the press button further includes a connecting structure disposed at one end of the press button near the ventilator main unit. The connecting structure is detachably connected to the ventilator main unit. When the press button is pressed toward the interior of the housing, the connecting structure separates from the ventilator main unit.

[0006] In some embodiments, the spring-loaded structure includes at least one of an elastic arm and an elastic element; the elastic arm includes a free end and a fixed end, and is configured such that: when the press button is pressed toward the interior of the housing, the free end slides away from the fixed end, and the elastic arm undergoes elastic deformation; when the external force is released, the free end slides toward the fixed end, and the elastic arm returns to its original deformation; the elastic element is configured such that: when the press button is pressed toward the interior of the housing, the height of the elastic element decreases and it undergoes elastic deformation; when the external force is released, the height of the elastic element increases and it returns to its original deformation.

[0007] In some embodiments, the fixed end of the elastic arm is fixedly connected to either the side of the pressing key near the interior of the housing or the outer surface of the housing, and the free end of the elastic arm abuts against either the side of the pressing key near the interior of the housing or the outer surface of the housing. When the pressing key is pressed towards the interior of the housing or after the external force is released, the free end slides relative to either the side of the pressing key near the interior of the housing or the outer surface of the housing.

[0008] 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 press button near the interior of the housing, and the first free end of the first elastic arm abuts against the outer surface of the housing. When the press button is pressed towards the interior of the housing or when the external force is released, the first free end slides relative to the upper surface of the housing. The second fixed end of the second elastic arm is fixed to the outer surface of the housing, and the second free end of the second elastic arm abuts against the side of the press button near the interior of the housing. When the press button is pressed towards the interior of the housing or when the external force is released, the second free end slides relative to the side of the press button near the interior of the housing.

[0009] In some embodiments, one end of the elastic element is fixedly connected to either the side of the press button near the interior of the housing or the outer surface of the housing, and the other end of the elastic element abuts against either the side of the press button near the interior of the housing or the outer surface of the housing.

[0010] In some embodiments, the push button has a connecting protrusion on one side of the housing interior or on one side of the housing exterior, and the connecting protrusion is connected to the elastic element.

[0011] In some embodiments, at least one of a limiting structure and a guiding structure is provided between the press button and the outer surface of the housing, wherein the limiting structure is used to limit the range of movement of the press button away from the interior of the housing; and the guiding structure is used to guide the press button to move along a preset path.

[0012] In some embodiments, the limiting structure includes a limiting member and a limiting groove. The limiting member is provided on one side of the pressing key near the interior of the housing or on one side of the outer surface of the housing, and the limiting groove is provided on the other side of the pressing key near the interior of the housing. The limiting member is located in the limiting groove and is capable of moving in the limiting groove toward and / or away from the interior of the housing.

[0013] In some embodiments, the guiding structure includes a guide member and a guide groove. The guide member is provided on one side of the push button near the interior of the housing or on the outer surface of the housing, and the guide groove is provided on the other side of the push button near the interior of the housing or on the outer surface of the housing. The guide member is capable of moving within the guide groove toward and / or away from the interior of the housing.

[0014] In some embodiments, the outer surface of the housing includes a recessed structure, the push button is accommodated within the recessed structure, and the spring-loaded structure is disposed between the side of the push button near the interior of the housing and the bottom wall of the recessed structure.

[0015] Some embodiments of this specification also provide a ventilator that includes the water tank described in any of the above claims.

[0016] The beneficial effects that the embodiments of this specification may bring include, but are not limited to: (1) the setting of the press button enables the water tank and the ventilator main unit to be detachably connected, reducing the difficulty of disassembling the water tank and allowing for flexible setting of the connection method between the water tank and the ventilator main unit; (2) the setting of the spring-loaded structure allows the press button to automatically reset after being pressed, requiring no additional operation and simplifying the steps; (3) the movable setting of the press button relative to the water tank shell allows the water tank to remain stable during disassembly and is less likely to shake relative to the ventilator main unit, which not only improves the diversity of the connection method between the water tank and the ventilator main unit, but also reduces the difficulty of the water tank entering and leaving the ventilator main unit, making the disassembly and assembly of the water tank simpler. It should be noted that different embodiments may produce different beneficial effects. In different embodiments, the beneficial effects that may be produced can be any one or a combination of the above, or any other possible beneficial effects. Attached Figure Description

[0017] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0018] Figure 1 This is an exemplary external schematic diagram of a water tank according to some embodiments of this specification;

[0019] Figure 2 This is a schematic diagram of an exemplary mating structure of the push button and the recessed structure according to some embodiments of this specification;

[0020] Figure 3 This is an exemplary structural diagram of a press key according to some embodiments of this specification;

[0021] Figure 4This is a schematic diagram of an exemplary structure of a press key from another perspective, according to some embodiments of this specification;

[0022] Figure 5 These are exemplary structural diagrams of recessed structures shown in some embodiments of this specification;

[0023] Figure 6 This is an exemplary structural diagram of another recessed structure shown according to some embodiments of this specification.

[0024] Explanation of reference numerals in the attached 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 element; 154, guide element; 154-1, reinforcing protrusion; 155, first elastic arm; 155-1, first fixed end; 155-2, first free end; 156, connecting protrusion; 160, elastic element. Detailed Implementation

[0025] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0026] It should be understood that the terms “system,” “apparatus,” “unit,” and / or “module” used herein are methods of distinguishing different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions. As indicated in this specification and claims, unless the context clearly indicates otherwise, the words “a,” “an,” “an,” and / or “the” are not specifically singular and may include plural. Generally, the terms “comprising” and “including” only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. Definitions of other terms will be given in the description below.

[0027] A ventilator is a device that can replace, control, or alter a person's normal physiological breathing, increase lung ventilation, improve respiratory function, and reduce respiratory strain. Currently, ventilators are widely used to treat sleep apnea or other respiratory disorders. During ventilator use, to ensure patients can use the ventilator normally for extended periods (e.g., around 10 hours), it's necessary to reduce the irritation of the respiratory mucosa by cold, dry air; therefore, most ventilators are equipped with a humidifier tank. Currently, ventilators on the market are difficult to disassemble from the main unit, and disassembly is laborious.

[0028] This specification provides a water tank for a ventilator, comprising a housing and a push-button button on the outer surface of the housing. The push-button button is configured to be pressed towards the interior of the housing under external force, allowing the water tank to be assembled to or detached from the ventilator unit; when the external force is released, the push-button button springs back away from the interior of the housing, fixing the water tank to the ventilator unit or resetting it after disassembly. The push-button design allows for a detachable connection between the water tank and the ventilator unit, reducing the structural complexity of the water tank. Furthermore, the push-button's movement ensures the water tank remains stable during disassembly, preventing it from shaking relative to the ventilator unit, thus allowing for various connection methods such as surface connection or insert connection. Simultaneously, the stability of the water tank during disassembly reduces the difficulty of inserting it into the ventilator unit, simplifying the assembly and disassembly process.

[0029] Some embodiments of this specification also provide a ventilator including the aforementioned water tank. The water tank of this ventilator is removable, reducing cleaning difficulty. Furthermore, the water tank is easy to install and remove, and there are multiple connection methods between the water tank and the ventilator main unit.

[0030] Figure 1 This is an exemplary external schematic diagram of a water tank according to some embodiments shown in this specification. Figure 2 This is a schematic diagram illustrating an exemplary mating structure between the push button and the recessed structure according to some embodiments of this specification. Figure 3 This is an exemplary structural diagram of a press button according to some embodiments of this specification. Figure 4 This is a schematic diagram of an exemplary structure of a press button from another perspective, based on some embodiments of this specification. Figure 5 These are exemplary structural diagrams of the recessed structure shown in some embodiments of this specification. Figure 6 This is an exemplary structural diagram of another recessed structure shown according to some embodiments of this specification. The following is in conjunction with... Figures 1-6 The structure of water tank 100 is described.

[0031] like Figure 1As 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 disposed on the outer surface of the housing 110. Please refer to... Figure 1 and Figure 2 The press button 150 is configured to be pressable towards the interior of the housing 110 under external force, so that the water tank 100 can be assembled to or disassembled from the ventilator main unit. In some embodiments, the press button 150 may include a spring-loaded structure (not shown in the figure), which can be used to: when the press button 150 is pressed towards the interior of the housing 110, the spring-loaded structure undergoes elastic deformation; when the external force is released, the spring-loaded structure returns to its original deformation, driving the press button 150 to spring back to its original position away from the interior of the housing 110, so that the water tank 100 is fixed to the ventilator main unit or reset after disassembly. Therefore, during the assembly or disassembly process, the water tank 100 as a whole can remain stable (e.g., the relative positions of the parts of the housing 110 remain unchanged), which facilitates the connection between the water tank 100 and the ventilator main unit, reduces the connection difficulty, and allows the water tank 100 and the ventilator main unit to adopt various connection methods (e.g., surface connection, insertion, etc.).

[0032] In some embodiments, the pressing button 150 may be disposed on the upper surface of the housing 110. The pressing button 150 can be pressed downward under the action of external force; after the external force is released, the pressing button 150 can be springed back upward under the drive of the spring-loaded structure. In some embodiments, the pressing button 150 may also be disposed on other surfaces of the housing 110, such as the bottom surface, front surface, side surface, etc. In some embodiments, the number of pressing buttons 150 may be one or more. For example, the number of pressing buttons 150 may be one, disposed on the upper surface or front surface of the housing 110. As another example, the number of pressing buttons 150 may be two, disposed on different surfaces of the housing 110 respectively. Considering the operability of the actual disassembly and assembly of the water tank 100 and the ventilator main unit, if there are too many pressing buttons 150, it will lead to greater difficulty for the operator to operate, making it difficult to operate with one hand. Therefore, the number of pressing buttons 150 may be one or two. Moreover, when there are two pressing buttons 150, the two pressing buttons 150 are disposed on two opposite surfaces of the housing 110, such as the upper surface and the bottom surface. For ease of description, the following description uses the example of the press button 150 being located on the upper surface of the housing 110 to illustrate the structure of the press button 150 and the housing 110. It should be noted that the structures of other surfaces of the housing 110 where the press button 150 is located are the same as or similar to those where the press button 150 is located on the upper surface of the housing 110, and will not be described in detail in this specification.

[0033] In some embodiments, the length direction of the housing 110 can be defined as the X direction, the width direction as the Y direction, and the height direction as the Z direction. Furthermore, right is the X direction, left is the opposite of the X direction, and the housing 110 moves to the left (i.e., in the opposite direction of the X direction) into the ventilator main unit to achieve connection. Up is the Z direction, and down is the opposite of the Z direction. Moving the press button 150 downwards means moving the press button 150 in the opposite direction of the Z direction; moving the press button 150 upwards means moving the press button 150 in the Z direction. Forward is the opposite of the Y direction, and backward is the Y direction.

[0034] In some embodiments, the press button 150 further includes a connecting structure 152, which is detachably connected to the ventilator main unit. When the press button 150 is pressed towards the interior of the housing 110 (e.g., downwards), the connecting structure 152 separates from the ventilator main unit, thereby allowing the water tank 100 to be detached from the ventilator main unit. When the press button 150 is reset, the connecting structure 152 can be connected back to the ventilator main unit, thereby securing the water tank 100 to the ventilator main unit.

[0035] like Figure 2 As shown, in some embodiments, the connecting structure 152 is disposed at the end of the press button 150 near the ventilator main unit, that is, in the X direction, the connecting structure 152 is disposed on the left side of the press button 150 to facilitate the connection between the connecting structure 152 and the ventilator main unit. In some embodiments, the connecting structure 152 may include a snap-fit ​​protrusion, and the ventilator main unit may include a groove that matches the snap-fit ​​protrusion. The snap-fit ​​protrusion and the groove have only one degree of freedom of movement along the direction of movement of the press button 150 (e.g., the Z direction, i.e., the up and down direction). During the installation of the water tank 100, when the press button 150 is pressed in a direction closer to the inside of the housing 110 (e.g., downward) by an external force, the snap-fit ​​protrusion moves synchronously in a direction closer to the inside of the housing 110 (e.g., downward). At this time, the water tank 100 can be moved to the left (i.e., in the opposite direction of the X direction) into the ventilator main unit until the snap-fit ​​protrusion moves to the position corresponding to the groove. When the external force is released, the pressing button 150 springs back to its original position away from the interior of the housing 110 (e.g., upwards), and the latching protrusion enters the groove to lock and secure the connection between the water tank 100 and the ventilator main unit. During the assembly and disassembly of the water tank 100, when the pressing button 150 is pressed towards the interior of the housing 110 (e.g., downwards) under external force, the latching protrusion moves towards the interior of the housing 110 (e.g., downwards) and out of the groove, unlocking the connection between the water tank 100 and the ventilator main unit. At this time, the water tank 100 can be moved to the right (i.e., along the X direction) out of the ventilator main unit, thus separating the water tank 100 from the ventilator main unit. After the water tank 100 is disassembled, the external force can be released, and the pressing button 150 will reset.

[0036] 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 may be magnetically connected. When the pressing button 150 moves away from the inside of the housing 110 (e.g., upward, i.e., the Z direction) until the connection structure 152 contacts the ventilator host for magnetic connection, the connection between the water tank 100 and the ventilator host is locked. When the pressing button 150 moves closer to the inside of the housing 110 (e.g., downward, i.e., the opposite direction of the Z direction) until the connection structure 152 separates from the ventilator host and the connection structure 152 does not automatically approach the ventilator host under the action of magnetic force, the connection between the water tank 100 and the ventilator host is unlocked.

[0037] Please refer to Figure 2 , Figure 5 and Figure 6 In some embodiments, the upper surface of the housing 110 includes a recessed structure 120, within which a press button 150 is accommodated. The press button 150 can move within 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 main unit. A spring-loaded structure is disposed between the side of the press button 150 closest to the interior of the housing 110 (i.e., the lower side) and the bottom wall of the recessed structure 120. During the recovery of its deformation, the spring-loaded structure can drive the press button 150 to move away from the bottom wall of the recessed structure 120 (i.e., away from the interior of the housing 110, upward).

[0038] Please refer to Figure 2 and Figure 3 In some embodiments, the press button 150 includes a pressing surface 151, which is disposed on the surface of the press button 150 away from the interior of the housing 110 (i.e., the upper surface) for providing a pressing area for the user. In some embodiments, the connecting structure 152 may be integrally formed with the pressing surface 151, reducing the number of steps and the difficulty of manufacturing the press button 150.

[0039] Please refer to Figure 3 In some embodiments, pressing stripes 151-1 may be provided on the pressing surface 151. Multiple pressing stripes 151-1 may be spaced apart along the X-direction. The pressing stripes 151-1 serve as tactile cues, indicating to the user the pressing position on the pressing surface 151. Simultaneously, the pressing stripes 151-1 also increase friction and prevent slippage, avoiding slippage of the user's hand on the pressing surface 151 during operation and improving the operational safety of the water tank 100.

[0040] Please refer to Figure 2 , Figure 3 and Figure 4In some embodiments, at least one of a limiting structure and a guiding structure is further provided between the press button 150 and the outer surface of the housing 110 (e.g., the recessed structure 120). The limiting structure can be used to restrict the range of movement of the press button 150 away from the interior of the housing 110 (e.g., upwards), and the press button 150 can be connected to the recessed structure 120 through the limiting structure. The guiding structure can be used to guide the press button 150 to move along a preset path.

[0041] In some embodiments, the number of limiting structures can be two or more. In some embodiments, the press button 150 may have limiting structures on both sides (front and rear) in the width direction (i.e., the Y direction), and the number of limiting structures on both sides may be the same or different. For example, the press button 150 may have two limiting structures on each side in the Y direction. The two limiting structures on either side are spaced apart along the X direction to improve the connection strength between the press button 150 and the recessed structure 120. In some embodiments, the press button 150 may also have one or more limiting structures on the right side in the X direction. In some embodiments, the press button 150 may have limiting structures on one, two, or three sides of the front, rear, and right sides, and the number of limiting structures on each side may be the same or different.

[0042] 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 either the side of the press button 150 near the interior of the housing 110 (i.e., the lower side) or on the outer surface of the housing 110 (e.g., the recessed structure 120), and the limiting groove 121 may be disposed on the other side of the press button 150 near the interior of the housing 110 (i.e., the lower side) or on the outer surface of the housing 110 (e.g., the recessed structure 120). For example, as... Figure 5 and Figure 6As shown, the limiting member 153 can be disposed on the side (i.e., the lower side) of the press button 150 near the interior of the housing 110, and the limiting groove 121 can be disposed within the recessed structure 120. The limiting groove 121 can cooperate with the limiting member 153 to limit the press button 150 during the reset process, thereby confining the press button 150 within the recessed structure 120. In some embodiments, the limiting member 153 is located within the limiting groove 121, and the limiting member 153 can move within the limiting groove 121 in a direction closer to and / or farther from the interior of the housing 110 (e.g., vertically). The height of the limiting groove 121 is the range of movement of the press button 150. In some embodiments, the limiting groove 121 is disposed on the inner wall of the recessed structure 120 and corresponds one-to-one with the limiting member 153. That is, the location and number of limiting grooves 121 correspond one-to-one with the location and number of limiting members 153. For example, four limiting structures are provided between the press button 150 and the recessed structure 120. Two limiting structures are spaced apart along the X direction on the front side of the press button 150 in the Y direction, and the other two limiting structures are spaced apart along the X direction on the rear side of the press button 150 in the Y direction. In this case, the press button 150 has two limiting members 153 spaced apart along the X direction on both the front and rear sides in the Y direction. Correspondingly, the two inner sidewalls of the recessed structure 120 in the Y direction may also each have two limiting grooves 121 spaced apart along the X direction. In some embodiments, the limiting members 153 may include, but are not limited to, hooks, latches, blocks, etc., that can cooperate with the limiting grooves 121.

[0043] In some embodiments, the limiting groove 121 has a preset height in the Z direction, so that when the limiting member 153 moves within 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 engages within the limiting groove 121 and is engaged and limited at the end edge of the limiting groove 121. At this time, the pressing surface 151 of the pressing button 150 can be flush with the outer surface (e.g., the upper surface) of the housing 110. Figure 2 As shown, this avoids the pressing surface 151 from protruding or recessing relative to the outer surface of the housing 110 at the recessed structure 120, and avoids the pressing surface 151 from interfering with the connection between the water tank 100 and the ventilator main unit.

[0044] In some embodiments, the guide structure includes a guide member 154 and a guide groove 122. The guide member 154 may be disposed on either the side of the press button 150 near the interior of the housing 110 (i.e., the lower side) or on the outer surface of the housing 110 (e.g., the recessed structure 120), and the guide groove 122 may be disposed on the other side of the press button 150 near the interior of the housing 110 (i.e., the lower side) or on the outer surface of the housing 110 (e.g., the recessed structure 120). For example, as... Figure 2 , Figure 3 and Figure 4As shown, the guide member 154 can be disposed on the side of the pressing surface 151 near the interior of the housing 110 (e.g., the lower side), and the guide groove 122 can be disposed within the recessed structure 120. The guide member 154 can move within the guide groove 122 in a direction closer to and / or farther from the interior of the housing 110 (e.g., vertical direction). The guide member 154 can cooperate with the guide groove 122, which can serve as a preset path to guide the movement direction of the pressing button 150 during the pressing and rebound reset process. This ensures that the guide member 154 moves within the guide groove 122 during the movement of the pressing button 150, preventing the pressing button 150 from tilting in the X and / or Y directions during movement. This allows the pressing surface 151 to remain stable in the X and / or Y directions, improving the stability of the pressing button 150.

[0045] In some embodiments, the guide structure may be disposed in the estimated force-bearing area of ​​the pressing surface 151 (e.g., near the middle in the length direction). This arrangement minimizes the distance in the X direction between the force-bearing location of the pressing surface 151 and the guide structure, ensuring that when the user presses the pressing surface 151, the force direction of the pressing key 150 substantially coincides with the extension direction (i.e., the Z direction or the opposite direction of the Z direction) of the guide structure (e.g., guide member 154 and / or guide groove 122), thereby reducing friction during the movement of the pressing key 150 and lowering the difficulty of pressing.

[0046] Please refer to Figure 4 In some embodiments, the guide member 154 may also have a reinforcing protrusion 154-1 on the side away from the inner wall of the recessed structure 120. The reinforcing protrusion 154-1 may extend along the Z direction. The reinforcing protrusion 154-1 can enhance the strength of the guide member 154 and reduce the possibility of the guide member 154 breaking or deforming under stress. In some embodiments, the guide member 154 may be provided with a plurality of reinforcing protrusions 154-1, which are spaced apart in the X direction.

[0047] Please refer to Figure 4 In some embodiments, a guide structure may be provided on both sides (front and rear sides) of the press button 150 in the Y direction, between the press button 150 and the recessed structure 120. The two guide structures work together to guide the movement of the press button 150, enhancing its stability. In some embodiments, in the X direction, the guide structure (e.g., guide member 154 and / or guide groove 122) may be located between two limiting structures (e.g., limiting member 153 and / or limiting groove 121), such as... Figure 4 As shown.

[0048] Please refer to Figure 5 and Figure 6In some embodiments, the location and number of guide grooves 122 can correspond one-to-one with the location and number of guide members 154. For example, two guide structures are provided between the press button 150 and the recessed structure 120. One guide structure is located on the front side of the press button 150 in the Y direction, and the other guide structure is located on the rear side of the press button 150 in the Y direction. In this case, a guide member 154 can be provided on each side (front and rear) of the press button 150 in the Y direction. Each guide member 154 is located in the estimated force-bearing area of ​​the pressing surface 151 (e.g., near the middle of the length direction). Correspondingly, a corresponding guide groove 122 can be provided on each of the two inner sidewalls of the recessed structure 120 in the Y direction. Each guide groove 122 can be located at a corresponding position in the middle of the pressing surface 151.

[0049] Please refer to Figures 2-4 In some embodiments, the springback structure may include at least one of an elastic arm (e.g., a first elastic arm 155 and / or a second elastic arm 125) and an elastic element 160. The elastic arm includes a free end and a fixed end, and is configured such that: when the press button 150 is pressed towards the interior of the housing 110 (e.g., downwards), the free end slides away from the fixed end, and the elastic arm undergoes elastic deformation; when the external force is released, the free end slides towards the fixed end, and the elastic arm returns to its original deformation. The elastic element 160 is configured such that: when the press button 150 is pressed towards the interior of the housing 110 (e.g., downwards), the height of the elastic element 160 decreases and it undergoes elastic deformation; when the external force is released, the height of the elastic element 160 increases and it returns to its original deformation.

[0050] In some embodiments, the fixed end of the elastic arm is fixedly connected to either the side of the press button 150 near the interior of the housing 110 (e.g., the lower side) or the bottom wall of the recessed structure 120, while the free end of the elastic arm abuts against the other side of the press button 150 near the interior of the housing 110 (e.g., the lower side) or the bottom wall of the recessed structure 120. When the press button 150 is pressed downwards by an external force or after the external force is released, the free end slides relative to the other side of the press button 150 near the interior of the housing 110 (e.g., the lower side) or the bottom wall of the recessed structure 120. When the press button 150 is pressed in a direction closer to the interior of the housing 110 (e.g., downwards) by an external force, the free end slides away from the fixed end, and the elastic arm undergoes elastic deformation, accumulating elastic potential energy. When the external force is released, the free end slides towards the fixed end, the elastic arm recovers its elastic deformation, and drives the press button 150 to spring back to its original position away from the interior of the housing 110 (e.g., upwards). It should be noted that, in this specification, "abutment" refers to contact without force, or contact with and under pre-pressure. As an example only, when the button 150 is in its normal state (i.e., not pressed by external force), the free end abuts against the bottom wall of the recessed structure 120. This can mean that the free end is just in contact with the bottom wall of the recessed structure 120 and is in a state of no force, and the elastic arm does not undergo elastic deformation; or, the free end is in contact with the bottom wall of the recessed structure 120, and the first free end 155-2 is in a state of force, the elastic arm undergoes elastic deformation under force, and the elastic arm accumulates elastic potential energy.

[0051] 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 press button 150 to spring back to a direction away from the interior of the housing 110 (e.g., upward) after the press button 150 is pressed in a direction close to the interior of the housing 110 (e.g., downward).

[0052] In some embodiments, the first elastic arm 155 is disposed on one side (e.g., the lower side) of the pressing surface 151 near 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, such as... Figure 4 As shown. The first fixed end 155-1 of the first elastic arm 155 is fixed to the side of the press button 150 opposite to the pressing surface 151 (i.e., the side of the pressing surface 151 near the inside of the housing 110, for example, 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. Figure 2As shown. In some embodiments, when the pressing button 150 is pressed by an external force toward the interior of the housing 110 (e.g., downward), 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 deforms to accumulate elastic potential energy. In some embodiments, the first elastic arm 155 is arranged along the X direction; when the pressing button 150 is pressed by an external force toward the interior of the housing 110 (e.g., downward), 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 moves closer to the first fixed end 155-1 in the Z direction. When the external force is released, the first elastic arm 155 releases 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. The first free end 155-2 approaches the first fixed end 155-1 in the X direction and moves away from the first fixed end 155-1 in the Z direction, thereby driving the pressing button 150 to move away from the interior of the housing 110 in the Z direction (i.e., upward), so that the pressing button 150 returns to the position before pressing.

[0053] In some embodiments, when the button 150 is in a normal state (i.e. not pressed by external force), the first free end 155-2 remains in contact with the bottom wall of the recessed structure 120, so that when the button 150 is pressed in a direction closer to the inside of the housing 110 (e.g., downward) after the external force is released, the first elastic arm 155 can drive the button 150 to return to the position before pressing.

[0054] In some embodiments, the first free end 155-2 can be rounded, such as... Figure 3 , Figure 4 As shown. The rounded corners can reduce the friction between the first free end 155-2 and the bottom wall of the recessed structure 120, and reduce the difficulty of the first free end 155-2 sliding relative to the bottom wall of the recessed structure 120.

[0055] In some embodiments, the number of first elastic arms 155 can be two or more. Please refer to... Figure 4 In some embodiments, there may be two first elastic arms 155, which are arranged parallel to each other along the Y direction to ensure that the deformation of the two first elastic arms 155 can be consistent during the pressing and resetting of the button 150, thereby improving the stability of the button 150.

[0056] Please refer to Figure 6In some embodiments, the structure and function of the second elastic arm 125 are similar to or the same as 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 button 150 away from the pressing surface 151 (i.e., the side of the pressing button 150 closer to the inside of the housing 110, the lower side). When the pressing button 150 is pressed in a direction closer 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 button 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 pressing button 150. The second elastic arm 125 recovers its deformation and releases elastic potential energy, driving the pressing button 150 to spring back to its original position away from the interior of the housing 110 (e.g., upwards). The working process and principle of the second elastic arm 125 during the pressing and resetting of the pressing button 150 can be found in the relevant content of the first elastic arm 155, and will not be repeated here.

[0057] In some embodiments, the orientation of the second elastic arm 125 may be parallel to the orientation 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. With this arrangement, the forces exerted by the second elastic arm 125 and the first elastic arm 155 on the press button 150 can cancel each other out in the X direction, thereby improving the stability of the press button 150.

[0058] In some embodiments, the number of second elastic arms 125 can be two or more. Please refer to... Figure 6 In some embodiments, there may be two second elastic arms 125, which are arranged parallel to each other along the Y direction to ensure that the deformation of the two first elastic arms 155 can be consistent during the pressing and resetting of the button 150, thereby improving the stability of the button 150.

[0059] 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.

[0060] Please refer to Figure 2 In some embodiments, one end of the elastic element 160 can be fixedly connected to either the lower side of the pressing surface 151 or the bottom wall of the recessed structure 120. That is, one end of the elastic element 160 is fixed, and the other end can abut against either the side of the pressing key 150 opposite to the pressing surface 151 (i.e., the lower side of the pressing surface 151) or the bottom wall of the recessed structure 120. Specifically, one end of the elastic element 160 can be fixed to the lower side of the pressing surface 151, and the other end can abut against the bottom wall of the recessed structure 120; or, one end of the elastic element 160 can be fixed to the bottom wall of the recessed structure 120, and the other end can abut against the lower side of the pressing surface 151. When the pressing key 150 is pressed towards the interior of the housing 110 (e.g., downwards) by an external force, the height of the elastic element 160 decreases and it undergoes elastic deformation, accumulating elastic potential energy. When the external force is released, the elastic element 160 begins to recover its deformation and drives the press button 150 to move away from the interior of the housing 110 (e.g., upward) and return to the position before pressing.

[0061] In some embodiments, one end of the elastic member 160 may also be plug-in connected to either the lower side of the pressing surface 151 or the bottom wall of the recessed structure 120. Specifically, please refer to... Figure 2 and Figure 4 A connecting protrusion 156 may be provided on the side of the press button 150 opposite to the press surface 151 (i.e., the lower side of the press button 150) or on the bottom wall of the recessed structure 120. The connecting protrusion 156 can be connected to the elastic element 160. When the connecting protrusion 156 is inserted into the elastic element 160, the elastic element 160 is fixed in place by the connecting protrusion 156. When the connecting protrusion 156 is pulled out from the elastic element 160, the elastic element 160 can be disassembled and replaced.

[0062] In some embodiments, the elastic element 160 may be disposed at the midpoint between the recessed structure 120 and the press button 150 in the X direction (e.g., Figure 2 , 4 As shown), this is to prevent the press button 150 from tilting in the X direction and to improve the stability of the press button 150. At this time, in the X direction, the elastic element 160 can be located between the latching part 152 and the first free end 155-2 of the first elastic arm 155, as shown. Figure 2 and Figure 4 As shown. In some embodiments, the elastic element 160 may be disposed at the midpoint between the recessed structure 120 and the press button 150 in the Y direction (e.g. Figure 4 As shown, two first elastic arms 155 can be respectively disposed on both sides of the elastic member 160, and two second elastic arms 125 can be respectively disposed on both sides of the elastic member 160 to improve the stability of the press button 150.

[0063] In some embodiments, the elastic element 160 may include an elastic material (e.g., silicone) or an elastic structure (e.g., a spring). In some embodiments, the elastic element 160 may be a spring, which has a long service life and is easy to replace.

[0064] In some embodiments, the recessed structure 120 may optionally contain either an elastic element 160 or a second elastic arm 125. In some embodiments, the recessed structure 120 may contain both an elastic element 160 and a second elastic element 125.

[0065] Some embodiments of this specification also provide a ventilator that includes the water tank 100 described above.

[0066] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, 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 and therefore remain within the spirit and scope of the exemplary embodiments described herein.

[0067] Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments described herein. Other variations may also fall within the scope of this specification. Therefore, alternative configurations of the embodiments described herein are intended to be illustrative rather than limiting, and should be considered consistent with the teachings of this specification. Accordingly, the embodiments described herein are not limited to those explicitly introduced and described herein.

Claims

1. A water tank for a breathing machine, characterized in that, The water tank comprises a shell and a pressing key arranged on the outer surface of the shell, the pressing key is configured to be pressed towards the interior of the shell under external force, so that the water tank can be assembled to or detached from the host of the breathing machine; wherein, The pressing key comprises a resilient structure, when the pressing key is pressed towards the interior of the shell, the resilient structure is elastically deformed, and when the external force is released, the resilient structure restores the deformation to drive the pressing key to rebound and reset away from the interior of the shell, so that the water tank is fixed to the host of the breathing machine or resets after being detached; wherein, the resilient structure comprises at least one of a resilient arm and a resilient piece; the water tank is inserted into or removed from the host of the breathing machine in the vertical direction of the pressing direction of the pressing key.

2. The water tank according to claim 1, characterized in that The pressing key further comprises a connecting structure arranged at one end of the pressing key close to the host of the breathing machine, the connecting structure is detachably connected with the host of the breathing machine, when the pressing key is pressed towards the interior of the shell, the connecting structure is separated from the host of the breathing machine.

3. The water tank of claim 1, wherein, The resilient arm comprises a free end and a fixed end, when the pressing key is pressed towards the interior of the shell, the free end slides away from the fixed end, and the resilient arm is elastically deformed; when the external force is released, the free end slides towards the fixed end, and the resilient arm restores the deformation; The resilient piece is configured to decrease in height and be elastically deformed when the pressing key is pressed towards the interior of the shell, and increase in height and restore the deformation when the external force is released.

4. The water tank according to claim 3, characterized in that The fixed end of the resilient arm is fixedly connected with one of the side close to the interior of the shell or the outer surface of the pressing key, and the free end of the resilient arm abuts against the other one of the side close to the interior of the shell or the outer surface of the pressing key, when the pressing key is pressed towards the interior of the shell or the external force is released, the free end and the other one of the side close to the interior of the shell or the outer surface of the pressing key slide relatively.

5. The water tank according to claim 4, characterized in that The resilient arm comprises at least one first resilient arm and / or at least one second resilient arm, The first fixed end of the first resilient arm is fixed to the side close to the interior of the shell of the pressing key, and the first free end of the first resilient arm abuts against the outer surface of the shell, when the pressing key is pressed towards the interior of the shell or the external force is released, the first free end slides relatively with the upper surface of the shell; The second fixed end of the second resilient arm is fixed to the outer surface of the shell, and the second free end of the second resilient arm abuts against the side close to the interior of the shell of the pressing key, when the pressing key is pressed towards the interior of the shell or the external force is released, the second free end slides relatively with the side close to the interior of the shell of the pressing key.

6. The water tank according to claim 3, characterized in that One end of the elastic member is fixedly connected to one of the side close to the inside of the shell or the outer surface of the shell of the pressing key, and the other end of the elastic member is in abutment with the other of the side close to the inside of the shell or the outer surface of the shell of the pressing key.

7. The water tank according to claim 6, characterized in that One of the side close to the inside of the shell or the outer surface of the shell of the pressing key is provided with a connecting protrusion connected with the elastic member.

8. The water tank of claim 1, wherein At least one of a limiting structure and a guiding structure is further arranged between the pressing key and the outer surface of the shell, The limiting structure is used for limiting the range of movement of the pressing key in the direction away from the inside of the shell. The guiding structure is used for guiding the pressing key to move along a preset path.

9. The water tank according to claim 8, characterized in that The limiting structure comprises a limiting member and a limiting groove, one of the side close to the inside of the shell or the outer surface of the shell of the pressing key is provided with the limiting member, and the other of the side close to the inside of the shell or the outer surface of the shell of the pressing key is provided with the limiting groove, the limiting member is located in the limiting groove and can move in the direction close to and / or away from the inside of the shell in the limiting groove.

10. The water tank according to claim 8, characterized in that The guiding structure comprises a guiding member and a guiding groove, one of the side close to the inside of the shell or the outer surface of the shell of the pressing key is provided with the guiding member, and the other of the side close to the inside of the shell or the outer surface of the shell of the pressing key is provided with the guiding groove, the guiding member can move in the direction close to and / or away from the inside of the shell in the guiding groove.

11. The water tank according to any one of claims 1 to 10, characterized in that The outer surface of the shell comprises a recess structure, the pressing key is contained in the recess structure, and the rebound structure is arranged between the side close to the inside of the shell of the pressing key and the bottom wall of the recess structure.

12. A breathing machine, characterized by The water tank comprises the water tank as claimed in any one of claims 1-11.

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