Push buttons, water tanks, and ventilation / therapy equipment

Abstract

Embodiments of this specification provide a push button used for attaching and detaching a water tank from a main body of a ventilation therapy device. The push button is provided on the water tank and is configured to allow the water tank to be attached to or detached from the main body by being pressed by an external force in a direction toward the inside of the water tank housing of the water tank, wherein the push button includes a pressing body, which includes a rebound structure including a fixed end and a free end provided opposite to each other, wherein when the push button is pressed toward the inside of the water tank housing, the free end moves from a first position to a second position and the rebound structure elastically deforms, and when the external force is released, the free end moves from the second position to the first position and the rebound structure restores its shape and drives the push button to rebound away from the inside of the water tank housing, thereby used to return the water tank to the main body after it has been connected to or detached.

Description

TECHNICAL FIELD

[0001] The present specification relates to the technical field of medical devices, and in particular, relates to a push button, a water tank, and a ventilation treatment device. BACKGROUND ART

[0002] Ventilation treatment devices (e.g., ventilators), as apparatuses having an artificial ventilation function, are widely used in the treatment of diseases such as respiratory failure of various causes and sleep apnea hypoventilation syndrome, and occupy a very important position in the field of modern medicine. When a user uses a ventilation treatment device to treat a respiratory disease, the ventilation treatment device needs to inhale gas from the outside, perform a series of gas treatments, and then supply the gas for the user's breathing. Current ventilation treatment devices have many problems, for example, the attachment and detachment between the water tank for humidifying the breathing gas supplied to the user in the ventilation treatment device and the main body of the ventilation treatment device is not sufficiently convenient.

[0003] In order to solve the above problems, the present specification aims to provide a push button, a water tank, and a ventilation treatment device. SUMMARY OF THE INVENTION

[0004] One embodiment of this specification provides a push button used for attaching and detaching a water tank from a main body of a ventilation therapy device. The push button is provided on the water tank and is configured such that the water tank can be attached to or detached from the main body by being pressed by an external force toward the inside of the water tank housing of the water tank, wherein the push button includes a pressing body, the pressing body includes a rebound structure including a fixed end and a free end provided opposite the fixed end, the rebound structure is used to return the water tank to the main body after it has been connected to or detached, such that when the push button is pressed toward the inside of the water tank housing, the free end moves from a first position to a second position and the rebound structure elastically deforms, and when the external force is released, the free end moves from the second position to a first position and the rebound structure restores its shape and drives the push button to rebound away from the inside of the water tank housing.

[0005] One embodiment of this specification provides another push button used for attaching and detaching a water tank from a main body of a ventilating therapy device. The push button is provided on the water tank and is configured such that the water tank can be attached to or detached from the main body by being pressed by an external force toward the inside of the water tank housing of the water tank, wherein the push button includes a pressing body, the pressing body includes a rebound structure, the rebound structure includes an elastic arm, the elastic arm includes a free end and a fixed end provided opposite the free end, the elastic arm is configured such that when the push button is pressed toward the inside of the water tank housing, the free end slides toward the fixed end and the elastic arm elastically deforms, and when the external force is released, the free end slides toward the fixed end and the elastic arm returns to its original shape, returning to its original position after the water tank has been connected to or detached from the main body.

[0006] One embodiment of this specification provides another push button used for attaching and detaching a water tank from a main body of a ventilation therapy device. The push button is provided on the water tank and is configured such that the water tank can be attached to or detached from the main body by being pressed by an external force in a direction toward the interior of the water tank housing of the water tank, wherein the push button includes a pressing body, the pressing body includes a rebound structure, the rebound structure includes an elastic member, the elastic member is configured such that when the push button is pressed toward the interior of the water tank housing, the height of the elastic member decreases and it elastically deforms, and when the external force is released, the height of the elastic member increases and it returns to its original state after the water tank has been connected to or detached from the main body.

[0007] One embodiment of this specification provides a water tank including a push button as described in any one of the above.

[0008] One of the ventilation therapy devices in the embodiments described herein includes the water tank described above.

[0009] The beneficial effects of the embodiments of this invention include, but are not limited to, (1) by installing a push button on the water tank, a removable connection between the water tank and the main body of the ventilation therapy device is realized, reducing the difficulty of removing the water tank and allowing for flexible installation of the connection method between the water tank and the main body; (2) by installing a rebound structure, the push button can automatically return to its original position after being pressed, requiring no additional operation and simplifying the procedure; and (3) by movably installing the push button on the water tank housing, the water tank can be held stably during the removal process, making it less likely to shake relative to the main body, improving the versatility of the connection method between the water tank and the main body, reducing the difficulty of connecting the water tank to the main body, and making it easier to attach and detach the water tank. [Brief explanation of the drawing]

[0010] This specification further describes exemplary embodiments, which are described in detail with reference to the drawings. These embodiments are not limiting, and in these embodiments, the same reference numerals indicate the same structure. [Figure 1A] This is an illustrative schematic diagram of the external shape of a water tank according to yet another embodiment of this specification. [Figure 1B] This is a schematic diagram of an exemplary collaborative structure between a push button and a recessed structure according to some embodiments of this specification. [Figure 1C] This is a schematic diagram illustrating the exemplary structure of a push button according to some embodiments of this specification. [Figure 1D] This is a schematic diagram illustrating the structure of a push button from a different perspective, according to some embodiments of this specification. [Figure 1E] This is an illustrative schematic diagram of a recessed structure according to some embodiments of this specification. [Figure 1F] This is a schematic diagram illustrating another recessed structure according to some embodiments of this specification. [Figure 1G] This is another schematic diagram illustrating the structure of a push button according to some embodiments of this specification. [Modes for carrying out the invention]

[0011] Here, exemplary embodiments or designs will be described in detail with reference to the drawings. Where the following description relates to the drawings, unless otherwise noted, the same numbers in different drawings indicate the same or similar elements. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. On the contrary, they are merely examples of apparatus and methods consistent with some aspects of the present application, which are described in detail in the appended claims.

[0012] The terms used in this application are for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms “one kind,” “the said,” and “the said” used in this application and the attached claims are also intended to include multiple forms unless the context clearly indicates otherwise.

[0013] It should be understood that the terms “first,” “second,” and similar terms used in the specification and claims of this application do not indicate any order, quantity, or importance, but merely distinguish different components. Similarly, similar terms such as “one” or “one” do not indicate a limitation of quantity, but indicate the presence of at least one. Unless otherwise specified, similar terms such as “front,” “rear,” “bottom,” and / or “top” are for explanatory convenience and are not limited to a single location or spatial direction. Similar terms such as “contains” or “includes” mean that the element or object following “contains” or “includes” includes the element or object and its equivalents listed before “contains” or “includes,” and do not exclude other elements or objects.

[0014] In modern clinical medicine, ventilatory therapy devices (e.g., respiratory units) are effective means of artificially replacing autonomous ventilation. They are devices that can replace, control, or modify a person's normal physiological respiration, increase lung ventilation, improve respiratory function, and reduce the consumption of respiratory work. They are commonly used for respiratory failure due to various causes, respiratory management during anesthesia in major surgery, respiratory support therapy, and emergency resuscitation, and occupy a very important position in the field of modern medicine. Ventilation therapy devices are important medical devices that can prevent and treat respiratory failure, reduce complications, and save and prolong patients' lives. However, there are problems with the attachment and detachment of the water tank and main unit of ventilatory therapy devices currently on the market, such as difficulty in operation and the time-consuming nature of removal.

[0015] Figure 1A is an exemplary schematic diagram of the external shape of a water tank according to yet another embodiment of this specification. Figure 1B is an exemplary schematic diagram of the linked structure of a push button and a recessed structure according to some embodiments of this specification. Figure 1C is an exemplary schematic diagram of the structure of a push button according to some embodiments of this specification. Figure 1D is an exemplary schematic diagram of the structure of a push button from a different viewpoint according to some embodiments of this specification. Figure 1E is an exemplary schematic diagram of the structure of a recessed structure according to some embodiments of this specification. Figure 1F is an exemplary schematic diagram of another recessed structure according to some embodiments of this specification. The structure of the water tank 700 will be described below with reference to Figures 1A to 1F.

[0016] As shown in Figure 1A, some embodiments of this specification provide a water tank 700 including a push button 750, which is used to attach and detach the water tank 700 to a main body in a ventilation therapy device. In some embodiments, the water tank 700 includes a water tank housing 710, and the push button 750 is provided on the outer surface of the water tank housing 710. Referring to Figures 1A and 1B, the push button 750 is configured to allow the water tank 700 to be attached to or detached from the main body by being pressed by an external force in a direction toward the interior of the water tank housing 710. In some embodiments, the push button 750 includes a pressing body, which includes a rebound structure (not shown), which is used to return the water tank 700 to the main body after it has been connected to or detached, by elastically deforming when the push button 750 is pressed toward the interior of the water tank housing 710, and then restoring itself when the external force is released, by driving the push button 750 to rebound away from the interior of the water tank housing 710. Therefore, when installing or removing the water tank 700, the entire water tank 700 is maintained stably (for example, the relative positions of each part of the water tank housing 710 are kept constant), making it easier to connect the water tank 700 to the main body and reducing the difficulty of connection.

[0017] In some embodiments, the rebound structure includes a fixed end and a free end, which are positioned opposite each other. The rebound structure is used to return the water tank 700 to the main body after it has been connected to or disconnected from the main body. This is done by the elastic deformation of the rebound structure when the push button 750 is pressed in a direction toward the interior of the water tank housing 710, causing the free end to move from a first position to a second position. When the external force is released, the free end moves from the second position to the first position, causing the rebound structure to return to its original position and retract away from the interior of the water tank housing 710. In this embodiment, the elastic deformation of the rebound structure causes at least a portion of the structure of the push button 750 to have a movable space relative to the water tank housing 710, and the movement of at least a portion of the structure of the push button 750 enables connection and disconnection between the water tank 700 and the corresponding abutment position in the main body. In this embodiment, the free end of the rebound structure moves between the first and second positions, so that at least a part of the structure of the push button 750 has a movable space. In actual applications, the range of movement of the movable part of the push button 750 may not be large, for example, it may move within a range of 0.1 mm to 1 mm. Of course, depending on the structural dimensions of the actual application, it may also move within a range of less than 0.1 mm or greater than 1 mm. However, for the stability of the pressing operation of the push button 750, it is preferable that the maximum pressing range is 15 mm or less.

[0018] In some embodiments, the push button 750 may be provided on the upper surface of the water tank housing 710, and the push button 750 can be pressed downward by an external force, and when the external force is released, the push button 750 can rebound upward under the drive of a rebound structure. In some embodiments, the push button 750 may be provided on other surfaces of the water tank housing 710, such as the bottom, front, or side. In some embodiments, the number of push buttons 750 may be one or more. For example, there may be one push button 750, which may be provided on the upper surface or front of the water tank housing 710. Alternatively, for example, there may be two push buttons 750, each provided on a different surface of the water tank housing 710. Considering the ease of operation when actually attaching and detaching the water tank 700 from the main body, if there are too many push buttons 750, it becomes difficult for the operator to operate, and it becomes difficult to operate with one hand, so the number of push buttons 750 may be one or two. Furthermore, if there are two push buttons 750, the two push buttons 750 are provided on two opposing surfaces of the water tank housing 710, for example, the top surface and the bottom surface. For the sake of explanation, the structure of the push button 750 and the water tank housing 710 will be described below using an example where the push button 750 is provided on the top surface of the water tank housing 710. Note that the structure in which the push button 750 is provided on other surfaces of the water tank housing 710 is the same as or similar to the structure in which the push button 750 is provided on the top surface of the water tank housing 710, and will not be described in this specification.

[0019] In some embodiments, the length direction of the water tank housing 710 can be defined as the X direction, the width direction of the water tank housing 710 as the Y direction, and the height direction of the water tank housing 710 as the Z direction. Also, the right is the X direction, and the left is the opposite direction of the X direction, and the water tank housing 710 enters the main body and connects by moving to the left (i.e., the opposite direction of the X direction). Up is the Z direction, and down is the opposite direction of the Z direction. When the push button 750 moves downward, i.e., the push button 750 moves along the opposite direction of the Z direction, and when the push button 750 moves upward, i.e., the push button 750 moves along the Z direction. Forward is the opposite direction of the Y direction, and backward is the Y direction.

[0020] In some embodiments, the push button 750 further includes a connecting structure 752, which is detachably connected to the main body. The pressing body includes a pressing structure, and the connecting structure 752 is provided at one end of the pressing body closer to the main body, i.e., the connecting structure 752 is provided at one end of the pressing structure closer to the main body. When the push button 750 is provided on the upper surface, i.e., top surface, of the water tank housing 710, when the push button 750 is pressed in a direction toward the interior of the water tank housing 710, i.e., when a force is applied to the upper surface, i.e., pressing surface 751 of the pressing structure toward the interior of the water tank housing 710, i.e., when the pressing structure is pressed downward, the connecting structure 752 moves in the same direction and synchronously toward the interior of the water tank housing 710, i.e., the connecting structure 752 moves downward, the connecting structure 752 disengages from its corresponding abutment position on the main body, the connecting structure 752 separates from the main body, thereby making the water tank 700 detachable from the main body. After the push button 750 is released, the connection structure 752 is connected to the main body, thereby securing the connection between the water tank 700 and the main body.

[0021] As shown in Figures 1B and 1C, in some embodiments, the connecting structure 752 is provided at one end of the push button 750 that is closer to the main body, that is, in the X direction, the connecting structure 752 is provided to the left of the pressing body, facilitating the connection between the connecting structure 752 and the main body. In some embodiments, the connection structure 752 may include a connecting member 752-1 and a locking projection 752-2, and the upper surface of the connection structure 752 (i.e., in the direction away from the water tank housing 710) is provided with the connecting member 752-1 and a locking projection 752-2 (or groove) for connecting to the main body, the connecting member 752-1 is connected to the end of the pressing body, and the locking projection 752-2 is provided at the end of the connecting member 752-1 away from the pressing body and correspondingly on the inner surface of the housing of the main body, in this embodiment specifically, the inner surface of the top housing of the main body is provided with abutting positions corresponding to the connection structure 752, and the abutting positions are provided with grooves (or projections) for abutting with the locking projection 752-2, the connecting member 752-1 has a predetermined length, for example, a length range of 5 mm to 25 mm, so the abutting positions and grooves of the main body should be provided at positions corresponding to the predetermined length of the connecting member 752-1. The space between the locking projection 752 and the groove has only degrees of freedom of movement along the direction of movement of the movable part of the push button 750 (for example, the Z direction, i.e., the up and down direction). For example, when the pressing structure of the push button 750 is pressed downward, the connecting structure 752 moves downward in sync. At this time, the connecting structure 752 is located below the abutting position in the main body and has a certain distance, for example, 0.05 mm or 0.3 mm. During the installation process of the water tank 700, when the pressing structure is pressed by an external force in a direction approaching the inside of the water tank housing 710 (for example, downward), the locking projection 752-2 moves synchronously in a direction approaching the inside of the water tank housing 710 (for example, downward). At this time, the water tank 700 can be moved to the left (i.e., along the opposite direction of the X direction) and placed into the main body until the locking projection 752-2 moves to a corresponding position located below the groove. When the external force is released, the pressing structure rebounds and returns to a direction away from the inside of the water tank housing 710 (for example, upward), causing the locking projection 752-2 to enter the groove and achieve locking and securing, thereby locking the connection between the water tank 700 and the main body.During the attachment and detachment process of the water tank 700, when the pressing structure is pressed by an external force in a direction approaching the interior of the water tank housing 710 (e.g., downward), the locking protrusion 752-2 moves in the direction approaching the interior of the water tank housing 710 (e.g., downward) to separate from the recessed groove, thereby realizing the disconnection between the water tank 700 and the main body. At this time, by moving the water tank 700 to the right (i.e., along the X direction) away from the main body, the separation of the water tank 700 from the main body can be achieved. After the water tank 700 is removed, the external force is released, and the push button 750 can be restored.

[0022] In some embodiments, other connection modes that can be locked or unlocked by movement may be included between the connection structure 752 and the main body. For example, the connection structure 752 and the main body may be magnetically connected. When the push button 750 moves in the direction away from the interior of the water tank housing 710 (e.g., upward, that is, the Z direction) until the connection structure 752 and the main body come into contact and are magnetically connected, the connection between the water tank 700 and the main body is locked. When the push button 750 moves in the direction approaching the interior of the water tank housing 710 (e.g., downward, that is, the direction opposite to the Z direction) until the connection structure 752 is separated from the main body and the connection structure 752 will not automatically approach the main body under the action of magnetic force, the unlocking of the connection between the water tank 700 and the main body can be realized.

[0023] Referring to FIG. 1B, FIG. 1E and FIG. 1F, in some embodiments, the top surface of the water tank housing 710 includes a recessed structure 720, and the push button 750 is accommodated within the recessed structure 720. The push button 750 can move in a direction approaching toward or away from the interior of the water tank housing 710 (for example, upward or downward) within the recessed structure 720, thereby realizing locking or unlocking of the connection between the water tank 700 and the main body. The resilient structure is provided between the side of the push button 750 close to the interior of the water tank housing 710 (i.e., the lower side) and the bottom wall of the recessed structure 720. In the process of restoring deformation, the resilient structure can drive the push button 750 to move in the direction away from the bottom wall of the recessed structure 720 (i.e., the direction away from the interior of the water tank housing 710, upward).

[0024] Referring to FIG. 1B and FIG. 1C, in some embodiments, the free end of the resilient structure is used to abut against the surface of the water tank housing 710, and the fixed end is fixedly connected to the pressing structure. The top surface of the pressing structure is a pressing surface 751, which is provided on the surface of the push button 750 away from the interior of the water tank housing 710 (i.e., the top surface of the pressing structure) to provide a pressing area for the user. Therefore, the resilient structure is disposed on the lower surface of the pressing structure, the fixed end of the resilient structure is connected to the lower surface of the pressing structure, and the free end of the resilient structure abuts against the top surface of the water tank housing 710. In some embodiments, the connection structure 752 may be integrally formed with the pressing structure, or the connection structure 752, the pressing structure, and the resilient structure may be integrally formed, thereby reducing the steps and difficulty in processing and manufacturing the push button 750, and causing the connection structure 752 to move in the same direction synchronously with the pressing structure or the pressing surface 751. In some embodiments, the pressing structure is disposed between the free end and the fixed end of the resilient structure, and applying a force to the pressing structure can achieve a change in the relative position between the free end and the fixed end. For example, when a force is applied to the pressing structure, the free end gradually approaches the fixed end, the horizontal included angle between the two gradually increases, that is, the horizontal distance between the free end and the fixed end may be made smaller.

[0025] Referring to Figure 1C, in some embodiments, pressing stripes 751-1 may be provided on the pressing surface 751. Multiple pressing stripes 751-1 may be spaced apart along the X direction. The pressing stripes 751-1 can serve as tactile cues, indicating the pressing position on the pressing surface 751 to the user. At the same time, the pressing stripes 751-1 can increase friction and act as an anti-slip surface, preventing the user's hand from slipping on the pressing surface 751 during operation and improving the operational safety of the water tank 700.

[0026] Referring to Figures 1B, 1C, and 1D, in some embodiments, at least one of a limit structure and a guide structure is further provided between the push button 750 and the outer surface of the water tank housing 710 (e.g., a recessed structure 720). The limit structure can be used to restrict the range of movement of the push button 750 in a direction away from the interior of the water tank housing 710 (e.g., upward), and the push button 750 may be connected to the recessed structure 720 via the limit structure. The guide structure can be used to guide the push button 750 to move along a predetermined path.

[0027] In some embodiments, the number of limit structures may be two or more. In some embodiments, limit structures may be provided on both sides (front and rear) of the push button 750 in the width direction (i.e., the Y direction), and the number of limit structures on each side may be the same or different. Exemplaryly, two limit structures may be provided on each side of the push button 750 in the Y direction. The two limit structures on any one side are spaced along the X direction to improve the connection strength between the push button 750 and the recess structure 720. In some embodiments, one or more limit structures may be provided on the right side of the push button 750 in the X direction. In some embodiments, limit structures may be provided on one, both, or three sides of the push button 750, including the front, rear, and right sides, and the number of limit structures on each side may be the same or different.

[0028] In some embodiments, the limit structure may include a limit member 753 and a limit groove 721. The limit member 753 may be provided on either the side of the push button 750 closer to the inside of the water tank housing 710 (i.e., the bottom side) or the outer surface of the water tank housing 710 (e.g., a recessed structure 720), and the limit groove 721 may be provided on the other side of the push button 750 closer to the inside of the water tank housing 710 (i.e., the bottom side) or the outer surface of the water tank housing 710 (e.g., a recessed structure 720). For example, as shown in Figures 1E and 1F, the limit member 753 may be provided on the side of the push button 750 closer to the inside of the water tank housing 710 (i.e., the bottom side), and the limit groove 721 may be provided within the recessed structure 720, and the limit groove 721 can work in conjunction with the limit member 753 to limit the push button 750 to be confined within the recessed structure 720 during the process of the push button 750 being returned. In some embodiments, the limit member 753 is located within the limit groove 721 and can move within the limit groove 721 toward and / or toward the interior of the water tank housing 710 (e.g., vertically). The height of the limit groove 721 is the range of movement of the push button 750. In some embodiments, the limit groove 721 is provided on the inner wall of the recess structure 720 and corresponds one-to-one with the limit member 753. That is, the installation position and number of stopper grooves 721 correspond one-to-one with the installation position and number of limit members 753. For example, four limit structures may be provided between the push button 750 and the recess structure 720, two of which are spaced apart on the front side of the push button 750 in the Y direction along the X direction, and the other two limit structures are spaced apart on the rear side of the push button 750 in the Y direction along the X direction. In this case, two limit members 753 are provided on the front and rear sides of the push button 750 in the Y direction, spaced apart along the X direction, and correspondingly, limit grooves 721 may be provided on the two inner walls of the recess structure 720 in the Y direction, spaced apart along the X direction.In some embodiments, the limit member 753 may include, but is not limited to, structures such as locking claws, hooks, or locking blocks that can engage with the limit groove 721.

[0029] In some embodiments, the limit groove 721 has a predetermined height in the Z direction, and when the limit member 753 moves within the limit groove 721 until it contacts the inner wall of the end of the limit groove 721 in the Z direction, the limit member 753 is locked within the limit groove 721 and locked to the end edge of the limit groove 721, thereby being limited. At this time, the pressing surface 751 of the push button 750 may be flush with the outer surface (e.g., top surface) of the water tank housing 710, and as shown in Figure 1B, the pressing surface 751 protrudes or recesses relative to the outer surface of the water tank housing 710 in the recess structure 720, so as to prevent the pressing surface 751 from interfering with the connection between the water tank 700 and the main body.

[0030] In some embodiments, the guide structure includes a guide member 754 and a guide groove 722. The guide member 754 may be provided on either the side of the push button 750 closer to the inside of the water tank housing 710 (i.e., the bottom side) or the outer surface of the water tank housing 710 (e.g., a recessed structure 720), and the guide groove 722 may be provided on the other side of the push button 750 closer to the inside of the water tank housing 710 (i.e., the bottom side) or the outer surface of the water tank housing 710 (e.g., a recessed structure 720). For example, as shown in Figures 1B, 1C, and 1D, the guide member 754 may be provided on the side of the pressing surface 751 closer to the inside of the water tank housing 710 (e.g., the bottom side), the guide groove 722 may be provided within the recessed structure 720, and the guide member 754 may move within the guide groove 722 in a direction toward and / or toward the inside of the water tank housing 710 (e.g., vertical direction). The guide member 754 can work in conjunction with the guide groove 722, allowing the guide groove 722 to be a predetermined path, and is used to guide the direction of movement of the push button 750 during the pressing and rebounding processes. During the movement of the push button 750, the guide member 754 moves within the guide groove 722, preventing the push button 750 from tilting in the X and / or Y directions during the movement process, maintaining the pressing surface 751 stably in the X and / or Y directions, and improving the stability of the push button 750.

[0031] In some embodiments, the guide structure may be provided in the predicted area of ​​the force-receiving point on the pressing surface 751 (for example, near the center in the longitudinal direction). With the above setup, the distance in the X direction between the force-receiving position on the pressing surface 751 and the guide structure can be made as small as possible, so that when the user presses the pressing surface 751, the force-receiving direction of the push button 750 can substantially coincide with the extending direction of the guide structure (for example, the guide member 754 and / or the guide groove 722) (i.e., the Z direction or the opposite Z direction), reducing friction during the movement of the push button 750 and reducing the difficulty of pressing. Therefore, in order to effectively and stably drive the movement of the connecting structure 752, it is preferable that the pressing area on the push button 750 that is subjected to external force is located near its central region, where the vicinity of the center in the longitudinal direction of the push button 750 refers to the vicinity of the central position in the longitudinal direction of other parts other than the connecting structure 752, i.e., the vicinity of the central region in the longitudinal direction of the pressing body. In some embodiments, the pressing region is preferably located near the central region in the longitudinal direction of the pressing structure. Generally, the force-receiving center of the rebound structure also corresponds to the central position of the pressing structure, that is, the perpendicular line of the force-receiving center of the rebound structure and the perpendicular line of the center of the pressing structure almost coincide.

[0032] Referring to Figure 1D, in some embodiments, a reinforcing projection 754-1 may be provided on the side of the guide member 754 away from the inner wall of the recessed structure 720, and the reinforcing projection 754-1 may extend along the Z direction. The reinforcing projection 754-1 can reinforce the strength of the guide member 754 and reduce the possibility of the guide member 754 breaking or deforming under force. In some embodiments, the guide member 754 may be provided with a plurality of reinforcing projections 754-1, and the plurality of reinforcing projections 754-1 may be spaced apart in the X direction.

[0033] Referring to Figure 1D, in some embodiments, a guide structure may be provided on both sides (front and rear) of the push button 750 in the Y direction between the push button 750 and the recess structure 720. The two guide structures work together to guide the movement of the push button 750 and improve the stability of the push button 750. In some embodiments, in the X direction, as shown in Figure 1D, the guide structure (e.g., guide member 754 and / or guide groove 722) may be located between two limit structures (e.g., limit member 753 and / or limit groove 721).

[0034] Referring to Figures 1E and 1F, in some embodiments, the installation position and number of guide grooves 722 may correspond one-to-one with the installation position and number of guide members 754. For example, two guide structures are provided between the push button 750 and the recess structure 720, one of which is provided on the front side of the push button 750 in the Y direction, and the other guide structure is provided on the rear side of the push button 750 in the Y direction. In this case, one guide member 754 is provided on each side (front and rear) of the push button 750 in the Y direction, and each guide member 754 is provided in the predicted area of ​​the force bearing point of the pressing surface 751 (for example, near the center in the longitudinal direction). Correspondingly, one corresponding guide groove 722 is provided on each of the two inner walls in the Y direction of the recess structure 720, and each guide groove 722 is provided at a corresponding position in the center of the pressing surface 751.

[0035] Referring to Figures 1B to 1D, in some embodiments, the rebound structure may include at least one of the elastic arms (e.g., a first elastic arm 755 and / or a second elastic arm 725) and the elastic member 760. The elastic arm includes a free end and a fixed end. When the push button 750 is pressed in a direction toward the interior of the water tank housing 710 (for example, downward), that is, when the pressing structure and the connecting structure 752 are pressed synchronously toward the interior of the water tank housing 710 (for example, downward), the free end moves toward the fixed end and the elastic arm undergoes elastic deformation. This means that the fixed end of the elastic arm, which is fixedly connected to the lower surface of the pressing structure, moves synchronously with the pressing structure toward the interior of the water tank housing 710, causing the elastic arm to deform. As a result, the angle between the lower surface of the pressing structure connected to the fixed end of the elastic arm and the elastic arm decreases, increasing the horizontal distance component between the free end and the fixed end of the elastic arm. When the external force is released, the free end moves toward the fixed end and the elastic arm undergoes restorative deformation, that is, the horizontal distance component between the free end and the fixed end of the elastic arm decreases. In some embodiments, the position of the fixed end of the elastic arm is fixed, and the free end of the elastic arm can come into contact with other components (e.g., the water tank housing 710 or a pressing structure). When the free end of the elastic arm moves toward or toward the fixed end, the free end can slide against the surface of the component it contacts, that is, the free end moves from a first position to a second position, and the range of the movement space between the first and second positions is as described above and will not be described here. When sliding, the free end of the elastic arm can slide toward or toward the fixed end; specifically, please refer to the description of the elastic arm described later. The elastic member 760 is configured such that when the push button 750 is pressed toward the interior of the water tank housing 710 (e.g., downward), the height of the elastic member 760 decreases and it undergoes elastic deformation, and when the external force is released, the height of the elastic member 760 increases and it undergoes restorative deformation.In some embodiments, during the pressing process of the push button 750, the decrease in the height of the elastic member 760 may be expressed as a decrease in the position of the upper end of the elastic member 760 (for example, the end to which the elastic member 760 is connected to the push button 750), in which case the height of the lower end of the elastic member 760 (for example, the end to which the elastic member 760 is connected to the water tank housing 710) does not need to change. In some embodiments, the decrease in the height of the elastic member 760 may be expressed as a decrease in the vertical distance in the height direction between the upper and lower ends of the elastic member 760. Accordingly, the increase in the height of the elastic member 760 may be expressed as an increase in the position of the upper end of the elastic member (the height of the lower end position does not need to change) or an increase in the vertical distance in the height direction between the upper and lower ends of the elastic member 760.

[0036] In some embodiments, the fixed end of the elastic arm is fixedly connected to either the side of the push button 750 closer to the interior of the water tank housing 710 (e.g., the bottom) or the bottom wall of the recess structure 720, while the free end of the elastic arm abuts against either the side of the push button 750 closer to the interior of the water tank housing 710 (e.g., the bottom) or the other bottom wall of the recess structure 720. When the push button 750 is pressed downward by an external force or when the external force is released, the free end slides relative to either the side of the push button 750 closer to the interior of the water tank housing 710 (e.g., the bottom) or the other bottom wall of the recess structure 720. When the push button 750 is pressed in a direction toward the interior of the water tank housing 710 (e.g., downward) by an external force, the free end slides toward the fixed end, the elastic arm undergoes elastic deformation, and elastic potential energy is accumulated. When the external force is released, the free end slides toward the fixed end, the elastic deformation of the elastic arm is restored, and the push button 750 is driven to rebound toward the water tank housing 710 (for example, upward). In this specification, contact means either being in contact but not being subjected to force, or being in contact and being subjected to preload. As a mere example, when the push button 750 is in a normal state (i.e., not being pressed by an external force), contact between the free end and the bottom wall of the recess structure 720 may mean that the free end is in contact with the bottom wall of the recess structure 720 and is not being subjected to force, and the elastic arm is not elastically deformed, or that the free end is in contact with the bottom wall of the recess structure 720 and the first free end 755 is being subjected to force, the elastic arm is being subjected to force and is elastically deformed, and the elastic arm is accumulating elastic potential energy. In embodiments in which the rebound structure is provided in the form of an elastic arm, the elastic arm includes a fixed end and a free end, and an arm body of a certain length is connected between the fixed end and the free end and moves between them, so the elastic arm has a certain length and at the same time has a certain horizontal length component.Due to the elastic arm having a fixed length, the push button 750, and especially the pressing structure connected to the elastic arm, has a wide range of pressing and force-receiving areas. Within the range of the horizontal length component of the elastic arm, effective pressure can be applied to the elastic arm, thereby improving the pressing and force-receiving area of ​​the push button 750, facilitating the effective use of the biasing force of the push button 750, and increasing the stability and effectiveness of the push button 750's use. In some embodiments, when the angle between the lower surface of the pressing structure and the elastic arm (mainly the arm body of the elastic arm) is constant, the longer the length of the arm body, the larger the vertical movable operating space of the push button 750. That is, the push button 750 can have a clear vertical (e.g., up and down) movement space, thereby improving the sensitivity, stability, and effectiveness of the push button 750's use and ensuring normal removal or connection between the water tank and the main body.

[0037] In some embodiments, when the central region of the pressing structure is subjected to force, the force-receiving center of the elastic arm also corresponds to a position near the center of the pressing structure; that is, the perpendicular of the force-receiving center of the elastic arm almost coincides with the perpendicular of the center of the pressing structure.

[0038] In some embodiments, the elastic arm may include at least one first elastic arm 755 and / or at least one second elastic arm 725. The first elastic arm 755 and / or the second elastic arm 725 can be driven to cause the push button 750 to rebound back in a direction away from the inside of the water tank housing 710 (e.g., upward) after being pressed toward the inside of the water tank housing 710 (e.g., downward).

[0039] In some embodiments, the first elastic arm 755 is located on the side of the pressing surface 751 closer to the interior of the water tank housing 710 (e.g., the lower side). As shown in Figure 1D, the first elastic arm 755 includes a first fixed end 755-1 and a first free end 755-2. As shown in Figure 1B, the first fixed end 755-1 of the first elastic arm 755 is fixed to the side of the push button 750 opposite to the pressing surface 751 (i.e., the side of the pressing surface 751 closer to the interior of the water tank housing 710, e.g., the lower side), and the first free end 755-2 of the first elastic arm 755 abuts against the bottom wall of the recess structure 720. In some embodiments, when the push button 750 is pressed by an external force in a direction toward the interior of the water tank housing 710 (e.g., downward), the first free end 755-2 of the first elastic arm 755 can slide against the bottom wall of the recess structure 720, causing the first elastic arm 755 to deform and store elastic potential energy. In some embodiments, the first elastic arm 755 is provided along the X direction, and when the push button 750 is pressed by an external force in a direction toward the interior of the water tank housing 710 (e.g., downward), the first free end 755-2 of the first elastic arm 755 moves away from the first fixed end 755-1 along the X direction, and correspondingly, the first free end 755-2 of the first elastic arm 755 moves toward the first fixed end 755-1 in the Z direction. When the external force is released, the first elastic arm 755 releases its elastic potential energy, and the first free end 755-2 of the first elastic arm 755 slides along the bottom wall of the recess structure 720, and the first free end 755-2 approaches the first fixed end 755-1 in the X direction and moves away from the first fixed end 755-1 in the Z direction, thereby driving the push button 750 to move away from the inside of the water tank housing 710 in the Z direction (i.e., upward), returning the push button 750 to its position before pressing.

[0040] In some embodiments, when the push button 750 is in a normal state (i.e., not pressed by an external force), the first free end 755-2 and the bottom wall of the recess structure 720 remain in contact. Subsequently, when the push button 750 is subjected to force and pressed toward the interior of the water tank housing 710 (for example, downward), and when the external force is released, the first elastic arm 755 can drive the push button 750 back to its pre-press position.

[0041] In some embodiments, as shown in Figures 1C and 1D, the first free end 755-2 may be provided with a rounded shape. By providing a rounded shape, friction between the first free end 755-2 and the bottom wall of the recess structure 720 can be reduced, thereby reducing the difficulty of the first free end 755-2 sliding against the bottom wall of the recess structure 720.

[0042] In some embodiments, the number of first elastic arms 755 may be two or more. Referring to Figure 1D, in some embodiments, the number of first elastic arms 755 may be two, and the two first elastic arms 755 are spaced apart and parallel to each other along the Y direction, thereby ensuring that the deformation of the two first elastic arms 755 is synchronized during the pressing and returning process of the push button 750, and improving the stability and effectiveness of the push button 750.

[0043] Referring to Figure 1F, in some embodiments, the structure and operation of the second elastic arm 725 are similar to or the same as the structure of the first elastic arm 755, for example, the second free end 725-2 of the second elastic arm 725 may be provided in a rounded shape. In some embodiments, the second fixed end 725-1 of the second elastic arm 725 is fixed to the bottom wall of the recess structure 720, and the second free end 725-2 of the second elastic arm 725 abuts against the side of the push button 750 away from the pressing surface 751 (i.e., the side of the push button 750 closer to the inside of the water tank housing 710, the lower side). When the push button 750 is pressed by an external force in a direction toward the inside of the water tank housing 710 (for example, downward), the second free end 725-2 of the second elastic arm 725 slides against the push button 750, and the second elastic arm 725 deforms and stores elastic potential energy. When the external force is released, the second free end 725-2 of the second elastic arm 725 and the lower side of the push button 750 slide relative to each other, causing the second elastic arm 725 to deform to its restorative state and release elastic potential energy, driving the push button 750 to rebound and return away from the inside of the water tank housing 710 (for example, upward). In the pressing and returning process of the push button 750, the operating process and principle of the second elastic arm 725 can be found by referring to the relevant content of the first elastic arm 755, and will not be explained here.

[0044] In some embodiments, the installation direction of the second elastic arm 725 may be parallel to the installation direction of the first elastic arm 755, and in the X direction, the position of the first fixed end 755-1 of the first elastic arm 755 corresponds to the position of the second free end 725-2 of the second elastic arm 725, and the position of the first free end 755-1 of the first elastic arm 755 corresponds to the position of the second fixed end 725-1 of the second elastic arm 725. With the above installation, the forces applied by the second elastic arm 725 and the first elastic arm 755 to the push button 750 cancel each other out in the X direction, thereby improving the stability of the push button 750.

[0045] In some embodiments, the number of second elastic arms 725 may be two or more. Referring to Figure 1F, in some embodiments, the number of second elastic arms 725 may be two, and the two second elastic arms 725 are spaced apart and parallel to each other along the Y direction, thereby ensuring that the deformation of the two first elastic arms 755 is synchronized during the pressing and returning process of the push button 750, and improving the stability of the push button 750.

[0046] In some embodiments, in the Y direction, the two second elastic arms 725 may be located between the two first elastic arms 755. In some embodiments, in the Y direction, the two first elastic arms 755 may be located between the two second elastic arms 725. In some embodiments, the two first elastic arms 755 and the two second elastic arms 725 may be staggered relative to each other in the Y direction.

[0047] In embodiments where multiple elastic arms are provided, it is preferable that the multiple elastic arms are provided symmetrically. The multiple elastic arms support the pressing structure of the push button 750 at different positions during its movement process, allowing it to move vertically. This improves the stability and smoothness of the push button 750's operation. Furthermore, the multiple elastic arms provided at different positions increase the force-receiving area of ​​the rebound structure, thereby improving the pressing and force-receiving area of ​​the push button 750's pressing structure. This allows the pressing structure to be driven to move vertically (for example, downward) in any of the different regions of the pressing surface 751, thereby improving the stability, smoothness, effectiveness, and usability of the push button 750's operation. Additionally, by providing multiple elastic arms, if one or more of the elastic arms are damaged, the rebound structure can still operate, allowing the push button 750 to function normally and ensuring normal removal or connection between the water tank and the main body.

[0048] Referring to Figure 1B, in some embodiments, one end of the elastic member 760 may be fixedly connected to either the underside of the pressing surface 751 or the bottom wall of the recess structure 720, that is, one end of the elastic member 760 may be fixed and the other end may abut against the opposite side of the pressing surface 751 of the push button 750 (i.e., the underside of the pressing surface 751) or the other side of the bottom wall of the recess structure 720. That is, one end of the elastic member 760 may be fixed to the underside of the pressing surface 751 and the other end may abut against the bottom wall of the recess structure 720, or one end of the elastic member 760 may be fixed to the bottom wall of the recess structure 720 and the other end may abut against the underside of the pressing surface 751. When the push button 750 is pressed by an external force in a direction toward the interior of the water tank housing 710 (for example, downward), the height of the elastic member 760 decreases and it undergoes elastic deformation, accumulating elastic potential energy. When the external force is released, the elastic member 760 begins to deform to restore its shape, driving the push button 750 to move away from the inside of the water tank housing 710 (for example, upward), returning it to its position before pressing.

[0049] In some embodiments, an insert-and-pull connection may be made between one end of the elastic member 760 and either the lower side of the pressing surface 751 or the bottom wall of the recessed structure 720. Specifically, referring to Figures 1B and 1D, a connecting projection 756 may be provided on the side of the push button 750 opposite to the pressing surface 751 (i.e., the lower side of the push button 750) or on the bottom wall of the recessed structure 720, and the connecting projection 756 may be connected to the elastic member 760. When the connecting projection 756 is inserted into the elastic member 760, the elastic member 760 is fixed in place via the connecting projection 756. When the connecting projection 756 is withdrawn from the elastic member 760, the elastic member 760 can be attached and detached and replaced.

[0050] In some embodiments, the elastic member 760 may be provided at an intermediate position in the X direction between the recess structure 720 and the push button 750 (as shown in Figures 1B and 1D). Based on the fact that the pressing region of the push button 750 that is subjected to the external force is located in the central region in the longitudinal direction of the pressing body (pressing structure), when the central region of the pressing structure of the pressing body is subjected to force, the force-receiving center of the elastic member 760 also corresponds to the vicinity of the central position of the pressing structure. That is, the perpendicular of the force-receiving center of the elastic member substantially coincides with the perpendicular of the center of the pressing structure, thereby preventing the push button 750 from tilting in the X direction and improving the stability of the push button 750. In this case, in the X direction, the elastic member 760 may be located between the connecting structure 752 and the first free end 755-2 of the first elastic arm 755, as shown in Figures 1B and 1D. In some embodiments, the elastic member 760 may be located at an intermediate position in the Y direction between the recess structure 720 and the push button 750 (as shown in Figure 1D), and in order to improve the stability of the push button 750, two first elastic arms 755 may be provided on both sides of the elastic member 760, and two second elastic arms 725 may be provided on both sides of the elastic member 760, respectively.

[0051] In some embodiments, the elastic member 760 may include an elastic material (e.g., silicone rubber) or an elastic structure (e.g., a spring). In some embodiments, the elastic member 760 may be a spring, which has a long service life and is easy to replace.

[0052] In some embodiments, an elastic member 760 or a second elastic arm 725 may be optionally provided within the recessed structure 720. In some embodiments, both the elastic member 760 and the second elastic arm 725 may be provided within the recessed structure 720 simultaneously.

[0053] Figure 1G is a schematic diagram of another exemplary structure of a push button according to some embodiments of this specification. Referring to Figure 1G, in some embodiments, the push button 750 may include a fixed structure 757, and the rebound structure may include an elastic piece mechanism 758. The fixed structure 757 may be provided on the peripheral side of the push button 750 other than the side on which the connecting structure 752 is provided, and the push button 750 is connected to the water tank housing 710 via the fixed structure 757. In the X direction, the fixed end of the elastic piece mechanism 758 is connected to the fixed structure 757, and the connecting structure 752 is provided at the free end of the elastic piece mechanism 758. In the Y direction, gaps are provided between both sides of the elastic piece mechanism 758 and the fixed structure 757, allowing the free end of the elastic piece mechanism 758 to move relative to the fixed end of the elastic piece mechanism 758.

[0054] In some embodiments, the pressing surface 751 is located on a surface of the elastic piece mechanism 758 that is away from the inside of the water tank housing 710 (i.e., the top surface).

[0055] In some embodiments, when the push button 750 is pressed in a direction toward the interior of the water tank housing 710 (for example, downward), the free end of the elastic piece mechanism 758 moves toward the interior of the water tank housing 710, causing the elastic piece mechanism 758 to elastically deform. When the external force is released, the free end of the elastic piece mechanism 758 moves toward the interior of the water tank housing 710, causing the elastic piece mechanism 758 to restore its shape and drive the push button 750 to rebound toward the interior of the water tank housing 710.

[0056] In some embodiments, at least one of an elastic arm (e.g., a first elastic arm 755 and / or a second elastic arm 725) and an elastic member 760 may be provided between the elastic piece mechanism 758 and the water tank housing 710, wherein the elastic arm and / or elastic member is provided on the side of the elastic piece mechanism 758 facing the inside of the water tank housing 710 (e.g., the lower surface of the elastic piece mechanism 758) or on the surface of a recessed structure 720 corresponding to a push button 750 in the water tank housing 710, which will not be described further in this specification.

[0057] Some embodiments of this specification further provide a ventilatory therapy device including the water tank 700 described above. In some embodiments, the ventilatory therapy device may include respiratory equipment and high-flow respiratory humidification therapy equipment, etc.

[0058] In the above embodiment, the installation of a push button enables a detachable connection between the water tank and the main body, reducing the difficulty of removing the water tank and allowing for flexible configuration of the connection method between the water tank and the main body. By providing a rebound structure to the push button, it can automatically return to its original position after being pressed, requiring no additional operation and simplifying the steps. The movable installation of the push button on the water tank housing ensures that the water tank is kept stable during the removal process, reducing shaking relative to the main body, improving the versatility of the connection method between the water tank and the main body, and lowering the difficulty of connecting the water tank to the main body, making the attachment and detachment of the water tank easier.

[0059] It should be noted that the beneficial effects may differ depending on the embodiment, and in different embodiments, the possible beneficial effects may be any one or more of the above-mentioned beneficial effects in any combination, or any other possible effects.

[0060] Having explained the basic concepts above, it goes without saying that to those skilled in the art, the above detailed disclosure is merely illustrative and does not limit this specification. Although not explicitly described herein, those skilled in the art can make various changes, improvements, and modifications to this specification. Since such changes, improvements, and modifications are recommended herein, such changes, improvements, and modifications still fall within the spirit and scope of the exemplary embodiments herein.

[0061] Furthermore, this specification uses specific terminology to describe the examples herein. For example, “one example,” “one embodiment,” and / or “several examples” mean a particular feature, structure, or property relating to at least one example herein. Therefore, it should be emphasized that “one example,” “one embodiment,” or “one alternative embodiment” mentioned more than once in different places herein does not necessarily refer to the same example. Moreover, some features, structures, or properties of one or more examples herein can be appropriately combined.

[0062] Similarly, it should be noted that, in order to simplify the expressions disclosed herein and to aid in the understanding of embodiments of one or more inventions, various features may be incorporated into a single embodiment, drawing, or description thereof in the description of the embodiments herein. However, this method of disclosure does not mean that the features necessary for the subject matter of this specification are greater than the features described in the claims. In fact, the features of the embodiments are fewer than all the features of a single embodiment disclosed above.

[0063] Finally, it should be understood that the examples described herein are merely principles for illustrating the examples herein. Other variations may also be included within the scope of this specification. Therefore, alternative configurations of the examples herein can be considered consistent with the teachings herein, not as limitations but as examples. Accordingly, the examples herein are not limited to those explicitly introduced and described herein.

[0064] [Cross-reference of related applications] This specification claims priority from the international application PCT / CN2023 / 090623, filed on April 25, 2023, and all its contents are incorporated herein by reference. [Explanation of Symbols]

[0065] 700 Water tank, 710 Water tank housing, 720 Recessed structure, 721 Limit groove, 722 Guide groove, 725 Second elastic arm, 725-1 Second fixed end, 725-2 Second free end, 750 Push button, 751 Pressing surface, 751-1 Pressing stripe, 752 Connecting structure, 752-1 Connecting member, 752-2 Locking projection, 753 Limit member, 754 Guide member, 754-1 Reinforcement projection, 755 First elastic arm, 755-1 First fixed end, 755-2 First free end, 756 Connecting projection, 757 Fixing structure, 758 Elastic piece mechanism, 760 Elastic member

Claims

1. A push button used for attaching and detaching the water tank and the main body of a ventilation therapy device, The push button is provided on the water tank, and is configured such that the water tank can be attached to or detached from the main body by being pressed by an external force in a direction toward the inside of the water tank housing of the water tank. The push button includes a pressing body, the pressing body includes a rebound structure including a fixed end and a free end provided opposite the fixed end, the rebound structure is characterized in that when the push button is pressed in a direction toward the interior of the water tank housing, the free end moves from a first position to a second position, the rebound structure elastically deforms, and when the external force is released, the free end moves from the second position to the first position, the rebound structure restores its shape and drives the push button to rebound away from the interior of the water tank housing, thereby being used to return the water tank after it has been connected to or removed from the main body.

2. The push button according to claim 1, further comprising a connecting structure, the connecting structure being provided at one end of the pressing body closer to the main body, the connecting structure being detachably connected to the main body, and when the pressing body is pressed in a direction toward the interior of the water tank housing, the connecting structure moves toward the interior of the water tank housing, and the connecting structure separates from the main body.

3. The push button according to claim 2, wherein the pressing body includes a pressing structure, and when the pressing structure is pressed in a direction toward the interior of the water tank housing, the connecting structure moves toward the interior of the water tank housing, and the connecting structure detaches from the abutting position of the main body located above it.

4. The push button according to claim 3, wherein the connection structure includes a connecting member and a locking projection, the connecting member is connected to the end of the pressing body, the locking projection is provided at the end of the connecting member away from the pressing body, the locking projection is used to engage with or disengage from a butt position of the main body, the connecting member has a predetermined length, the butt position is provided on the inner surface of the housing of the main body, the setting position of the butt position corresponds to the predetermined length of the connecting member, and the butt position is provided with a groove that engages with the locking projection.

5. The push button according to claim 4, characterized in that the predetermined length range of the connecting member is 5 mm to 25 mm.

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

7. The push button according to claim 1, characterized in that the pressing region of the push button that is subjected to the action of the external force is located in the central region in the longitudinal direction of the pressing body.

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

9. The push button according to claim 7, characterized in that the force receiving center of the rebound structure corresponds to the central region in the longitudinal direction of the pressing body.

10. The rebound structure includes at least one of an elastic arm and an elastic member, The elastic arm is configured such that when the push button is pressed in a direction toward the interior of the water tank housing, the free end moves toward the fixed end, moving from a first position to a second position, and the elastic arm undergoes elastic deformation; and when the external force is released, the free end moves toward the fixed end, moving from the second position to the first position, and the elastic arm undergoes restorative deformation. The push button according to any one of claims 1 to 5, 7 to 9, characterized in that when the push button is pressed in a direction toward the interior of the water tank housing, the free end moves from a first position to a second position, the height of the elastic member decreases and it undergoes elastic deformation, and when the external force is released, the free end moves from the second position to the first position, the height of the elastic member increases and it undergoes restorative deformation.

11. The push button according to claim 10, characterized in that the fixed end of the elastic arm is fixedly connected to either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the free end of the elastic arm abuts against the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and when the push button is pressed in a direction toward the inside of the water tank housing or when the external force is released, the free end slides relative to the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing.

12. 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 button closer to the inside of the water tank housing, and the first free end of the first elastic arm abuts against the outer surface of the water tank housing, and when the push button is pressed in a direction toward the inside of the water tank housing or when the external force is released, the first free end slides relative to the upper surface of the water tank housing. The push button according to claim 11, characterized in that the second fixed end of the second elastic arm is fixed to the outer surface of the water tank housing, the second free end of the second elastic arm abuts against the side of the push button closer to the inside of the water tank housing, and when the push button is pressed in a direction toward the inside of the water tank housing or when the external force is released, the second free end slides relative to the side of the push button closer to the inside of the water tank housing.

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

14. The push button according to claim 13, characterized in that a connecting projection connected to the elastic member is provided on either the side of the push button closest to the inside of the water tank housing or on the outer surface of the water tank housing.

15. Between the push button and the outer surface of the water tank housing, at least one of a limit structure and a guide structure is further provided. The limit structure is used to restrict the range in which the push button moves away from the inside of the water tank housing. The push button according to any one of claims 1 to 5, 7 to 9, characterized in that the guide structure is used to guide the push button so that it moves along a predetermined path.

16. The push button according to claim 15, wherein the limit structure includes a limit member and a limit groove, the limit member is provided on either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the limit groove is provided on the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and the limit member is located within the limit groove and is movable within the limit groove in a direction toward and / or toward the inside of the water tank housing.

17. The push button according to claim 15, wherein the guide structure includes a guide member and a guide groove, the guide member is provided on either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the guide groove is provided on the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and the guide member is movable within the guide groove in a direction toward and / or toward the inside of the water tank housing.

18. A water tank characterized by including a push button according to any one of claims 1 to 17.

19. The water tank according to claim 18, characterized in that the outer surface of the water tank housing includes a recessed structure, the push button is housed within the recessed structure, and the rebound structure is provided between the side of the push button closer to the inside of the water tank housing and the bottom wall of the recessed structure.

20. A ventilation therapy device characterized by including a water tank as described in any one of claims 18 to 19.

21. A push button used for attaching and detaching the water tank and the main body of a ventilation therapy device, The push button is provided on the water tank, and is configured such that the water tank can be attached to or detached from the main body by being pressed by an external force in a direction toward the inside of the water tank housing of the water tank. The push button includes a pressing body, the pressing body includes a rebound structure, the rebound structure includes an elastic arm, the elastic arm includes a free end and a fixed end provided opposite the free end, and the elastic arm is configured such that when the push button is pressed in a direction approaching the inside of the water tank housing, the free end slides away from the fixed end and the elastic arm elastically deforms, and when the external force is released, the free end slides towards the fixed end and the elastic arm returns to its original shape, returning to its original state after the water tank is connected to or removed from the main body.

22. The push button according to claim 21, further comprising a connecting structure, the connecting structure being provided at one end of the pressing body closer to the main body, the connecting structure being detachably connected to the main body, and when the pressing body is pressed in a direction toward the interior of the water tank housing, the connecting structure moves toward the interior of the water tank housing, and the connecting structure separates from the main body.

23. The push button according to claim 22, wherein the pressing body includes a pressing structure, and when the pressing structure is pressed in a direction toward the interior of the water tank housing, the connecting structure moves toward the interior of the water tank housing, and the connecting structure detaches from the abutting position of the main body located above it.

24. The push button according to claim 23, wherein the connection structure includes a connecting member and a locking projection, the connecting member is connected to the end of the pressing body, the locking projection is provided at the end of the connecting member away from the pressing body, the locking projection is used to engage with or disengage from a butt position of the main body, the connecting member has a predetermined length, the butt position is provided on the inner surface of the housing of the main body, the setting position of the butt position corresponds to the predetermined length of the connecting member, and the butt position is provided with a groove that engages with the locking projection.

25. The push button according to claim 24, characterized in that the predetermined length range of the connecting member is 5 mm to 25 mm.

26. The push button according to claim 21, characterized in that the pressing region of the push button that is subjected to the action of the external force is located in the central region in the longitudinal direction of the pressing body.

27. The push button according to claim 26, characterized in that the force receiving center of the elastic arm corresponds to the central region in the longitudinal direction of the pressing body.

28. The push button according to any one of claims 21 to 27, characterized in that the fixed end of the elastic arm is fixedly connected to either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the free end of the elastic arm abuts against the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and when the push button is pressed in a direction toward the inside of the water tank housing or when the external force is released, the free end slides relative to the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing.

29. 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 button closer to the inside of the water tank housing, and the first free end of the first elastic arm abuts against the outer surface of the water tank housing, and when the push button is pressed in a direction toward the inside of the water tank housing or when the external force is released, the first free end slides relative to the upper surface of the water tank housing. The push button according to claim 28, characterized in that the second fixed end of the second elastic arm is fixed to the outer surface of the water tank housing, the second free end of the second elastic arm abuts against the side of the push button closer to the inside of the water tank housing, and when the push button is pressed in a direction toward the inside of the water tank housing or when the external force is released, the second free end slides relative to the side of the push button closer to the inside of the water tank housing.

30. Between the push button and the outer surface of the water tank housing, at least one of a limit structure and a guide structure is further provided. The limit structure is used to restrict the range in which the push button moves away from the inside of the water tank housing. The push button according to any one of claims 21 to 27, characterized in that the guide structure is used to guide the push button so that it moves along a predetermined path.

31. The push button according to claim 30, wherein the limit structure includes a limit member and a limit groove, the limit member is provided on either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the limit groove is provided on the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and the limit member is located within the limit groove and is movable within the limit groove in a direction toward and / or toward the inside of the water tank housing.

32. The push button according to claim 30, wherein the guide structure includes a guide member and a guide groove, the guide member is provided on either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the guide groove is provided on the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and the guide member is movable within the guide groove in a direction toward and / or toward the inside of the water tank housing.

33. A water tank characterized by including a push button according to any one of claims 21 to 32.

34. The water tank according to claim 33, characterized in that the outer surface of the water tank housing includes a recessed structure, the push button is housed within the recessed structure, and the rebound structure is provided between the side of the push button closer to the inside of the water tank housing and the bottom wall of the recessed structure.

35. A ventilation therapy device characterized by including a water tank as described in any one of claims 33 to 34.

36. A push button used for attaching and detaching the water tank and the main body of a ventilation therapy device, The push button is provided on the water tank, and is configured such that the water tank can be attached to or detached from the main body by being pressed by an external force in a direction toward the inside of the water tank housing of the water tank. The push button includes a pressing body, the pressing body includes a rebound structure, the rebound structure includes an elastic member, and the elastic member is configured such that when the push button is pressed in a direction approaching the inside of the water tank housing, the height of the elastic member decreases and it undergoes elastic deformation, and when the external force is released, the height of the elastic member increases and it undergoes restorative deformation, returning to its original state after the water tank is connected to or removed from the main body.

37. The push button according to claim 36, further comprising a connecting structure, the connecting structure being provided at one end of the pressing body closer to the main body, the connecting structure being detachably connected to the main body, and the push button according to claim 36, wherein when the pressing body is pressed in a direction toward the interior of the water tank housing, the elastic member is compressed, the connecting structure moves toward the interior of the water tank housing, and the connecting structure moves toward the main body along the direction of the press until it moves toward the main body.

38. The push button according to claim 37, wherein the pressing body includes a pressing structure, and when the pressing structure is pressed in a direction toward the interior of the water tank housing, the connecting structure moves toward the interior of the water tank housing, and the connecting structure detaches from the abutting position of the main body located above it.

39. The push button according to claim 38, wherein the connection structure includes a connecting member and a locking projection, the connecting member is connected to the end of the pressing body, the locking projection is provided at the end of the connecting member away from the pressing body, the locking projection is used to engage with or disengage from a butt position of the main body, the connecting member has a predetermined length, the butt position is provided on the inner surface of the housing of the main body, the setting position of the butt position corresponds to the predetermined length of the connecting member, and the butt position is provided with a groove that engages with the locking projection.

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

41. The push button according to claim 36, characterized in that the pressing region of the push button that is subjected to the action of the external force is located in the central region in the longitudinal direction of the pressing body.

42. The push button according to claim 41, characterized in that the force-receiving center of the elastic member corresponds to the central region in the longitudinal direction of the pressing body.

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

44. The push button according to claim 43, characterized in that one end of the elastic member and the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing are connected by an insert-and-remove connection.

45. The push button according to claim 44, characterized in that a connecting projection to which the elastic member is attached is provided on either the side of the push button closest to the inside of the water tank housing or the outer surface of the water tank housing.

46. Between the push button and the outer surface of the water tank housing, at least one of a limit structure and a guide structure is further provided. The limit structure is used to restrict the range in which the push button moves away from the inside of the water tank housing. The push button according to any one of claims 36 to 42, characterized in that the guide structure is used to guide the push button so that it moves along a predetermined path.

47. The push button according to claim 46, wherein the limit structure includes a limit member and a limit groove, the limit member is provided on either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the limit groove is provided on the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and the limit member is located within the limit groove and is movable within the limit groove in a direction toward and / or toward the inside of the water tank housing.

48. The push button according to claim 46, wherein the guide structure includes a guide member and a guide groove, the guide member is provided on either the side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, the guide groove is provided on the other side of the push button closer to the inside of the water tank housing or the outer surface of the water tank housing, and the guide member is movable within the guide groove in a direction toward and / or toward the inside of the water tank housing.

49. A water tank characterized by including a push button according to any one of claims 36 to 48.

50. The water tank according to claim 49, characterized in that the outer surface of the water tank housing includes a recessed structure, the push button is housed within the recessed structure, and the rebound structure is provided between the side of the push button closer to the inside of the water tank housing and the bottom wall of the recessed structure.

51. A ventilation therapy device characterized by including a water tank as described in any one of claims 49 to 50.

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