CN220090199U - Water tank for breathing machine and breathing machine - Google Patents

Abstract

The embodiment of the specification provides a water tank for a breathing machine and the breathing machine. The water tank comprises a shell and a pressing key arranged on the outer surface of the shell, wherein the pressing key is configured to be pressed in a direction close to the inside of the shell under the action of external force, so that the water tank can be assembled to or disassembled from the breathing machine host; wherein, press the key and include rebound structure, rebound structure is used for: when the pressing key is pressed in a direction close to the inside of the shell, the rebound structure generates elastic deformation; when the external force is released, the rebound structure restores to deform to drive the pressing key to rebound and reset in the direction away from the inside of the shell, so that the water tank is fixed to the main machine of the breathing machine or reset after being disassembled. Through the setting of pressing the key, realize that the water tank can dismantle with the breathing machine host computer and set up, reduced the structure complexity of water tank for the water tank keeps stable difficult production position change in dismantlement process, has reduced the degree of difficulty that the water tank got into the breathing machine host computer, makes the water tank dismouting simpler.

Description

Water tank for breathing machine and breathing machine

Technical Field

The specification relates to the technical field of medical equipment, and in particular relates to a water tank for a breathing machine and the breathing machine.

Background

The breathing machine can replace, control or change normal physiological breathing of people, increase lung ventilation, improve respiratory function and reduce respiratory function consumption. Currently ventilators are commonly used to treat sleep apnea or other respiratory disorders. In the actual use process, in order to ensure that a patient can normally use the breathing machine for a long time (for example, about 10 hours), the stimulation of cold dry gas to respiratory tract mucous membranes needs to be reduced, so that most breathing machines are provided with a humidifying water tank. The water vapor is generated by heating the water, so that the gas sucked into the patient is warmed and moistened.

It is therefore desirable to provide a water tank that can be used with a ventilator, and a ventilator that includes the water tank.

Disclosure of Invention

Some embodiments of the present disclosure provide a water tank for a ventilator, including a housing and a pressing key provided on an outer surface of the housing, the pressing key configured to be pressed in a direction approaching an inside of the housing by an external force, so that the water tank can be assembled to or disassembled from a ventilator main unit; wherein, press the key and include rebound structure, rebound structure is used for: when the pressing key is pressed in a direction approaching to the inside of the shell, the rebound structure generates elastic deformation; when the external force is released, the rebound structure resumes deformation to drive the pressing key to rebound and reset in the direction away from the inside of the shell, so that the water tank is fixed to the main machine of the respirator or reset after being disassembled.

In some embodiments, the pressing key further includes a connection structure disposed at an end of the pressing key near the ventilator main unit, the connection structure being detachably connected with the ventilator main unit, and the connection structure being separated from the ventilator main unit when the pressing key is pressed in a direction near the inside of the housing.

In some embodiments, the resilient structure comprises at least one of a resilient arm and a resilient member; the spring arm includes a free end and a fixed end, the spring arm configured to: when the pressing key is pressed in a direction approaching to the inside of the shell, the free end slides in a direction far away from the fixed end, and the elastic arm is elastically deformed; when the external force is released, the free end slides to a direction close to the fixed end, and the elastic arm recovers deformation; the elastic member is configured to: when the pressing key is pressed in a direction approaching to the inside of the shell, the height of the elastic piece is reduced and the elastic piece is elastically deformed; when the external force is released, the height of the elastic piece is increased and deformation is recovered.

In some embodiments, the fixed end of the elastic arm is fixedly connected with one side of the pressing key close to the inside of the shell or one of the outer surfaces of the shell, the free end of the elastic arm is abutted with the other side of the pressing key close to the inside of the shell or the other one of the outer surfaces of the shell, and when the pressing key is pressed in a direction close to the inside of the shell or after the external force is released, the free end and the other side of the pressing key close to the inside of the shell or the other one of the outer surfaces of the shell slide relatively.

In some embodiments, the elastic arm includes at least one first elastic arm and/or at least one second elastic arm, a first fixed end of the first elastic arm is fixed on one side of the pressing key, which is close to the interior of the shell, a first free end of the first elastic arm abuts against the outer surface of the shell, and when the pressing key is pressed in a direction close to the interior of the shell or the external force is released, the first free end slides relatively to the upper surface of the shell; the second fixed end of the second elastic arm is fixed on the outer surface of the shell, the second free end of the second elastic arm is abutted to one side, close to the inside of the shell, of the pressing key, and when the pressing key is pressed in the direction close to the inside of the shell or after the external force is released, the second free end and one side, close to the inside of the shell, of the pressing key slide relatively.

In some embodiments, one end of the elastic member is fixedly connected with one of a side of the pressing key close to the inside of the housing or the outer surface of the housing, and the other end of the elastic member is abutted with the other one of the side of the pressing key close to the inside of the housing or the outer surface of the housing.

In some embodiments, the pressing key is provided with a connection protrusion near one side of the inside of the housing or one of the outer surfaces of the housing, the connection protrusion being connected with the elastic member.

In some embodiments, 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, wherein the limiting structure is used for limiting the moving range of the pressing key in a direction away from the interior of the shell; the guide structure is used for guiding the pressing key to move according to a preset path.

In some embodiments, the limiting structure comprises a limiting member and a limiting groove, wherein the limiting member is arranged on one side of the pressing key, which is close to the inside of the shell, or on one of the outer surfaces of the shell, the limiting groove is arranged on the other side of the pressing key, which is close to the inside of the shell, or on the other one of the outer surfaces of the shell, and the limiting member is located in the limiting groove and can move in the direction, which is close to and/or away from the inside of the shell, in the limiting groove.

In some embodiments, the guide structure includes a guide member and a guide groove, the guide member is provided on one of a side of the pressing key near the inside of the housing or the outside surface of the housing, the guide groove is provided on the other of the side of the pressing key near the inside of the housing or the outside surface of the housing, and the guide member is movable within the guide groove in a direction near and/or away from the inside of the housing.

In some embodiments, the housing outer surface includes a recessed structure, the push key is received within the recessed structure, and the resilient structure is disposed between a side of the push key proximate the housing interior and a bottom wall of the recessed structure.

Some embodiments of the present disclosure also provide a ventilator comprising a water tank as described in any of the above.

Possible benefits of embodiments of the present description include, but are not limited to: (1) The water tank is detachably connected with the main machine of the breathing machine by pressing the key, so that the operation difficulty of the disassembly of the water tank is reduced, and the connection mode of the water tank and the main machine of the breathing machine can be flexibly set; (2) The rebound structure is arranged, so that the pressing key can be automatically reset after being pressed, no additional operation is needed, and the steps are simple; (3) Through pressing the key for the activity setting of water tank casing for the water tank can keep stable at the dismantlement in-process, is difficult for producing rocking relatively the breathing machine host computer, has not only promoted the diversity of the connected mode of water tank and breathing machine host computer, has still reduced the water tank and has gone into the degree of difficulty of getting out of breathing machine host computer, makes the dismouting of water tank simpler. It should be noted that, the advantages that may be generated by different embodiments may be different, and in different embodiments, the advantages that may be generated may be any one or a combination of several of the above, or any other possible advantages that may be obtained.

Drawings

The present specification will be further elucidated by way of example embodiments, which will be described in detail by means of the accompanying drawings. The embodiments are not limiting, in which like numerals represent like structures, wherein:

FIG. 1 is an exemplary schematic illustration of a water tank according to some embodiments of the present disclosure;

FIG. 2 is a schematic diagram of an exemplary mating structure of a push button and recess structure shown in accordance with some embodiments of the present description;

FIG. 3 is a schematic diagram of an exemplary configuration of a push key shown in accordance with some embodiments of the present description;

FIG. 4 is a schematic diagram of another exemplary structure of a press key according to another view angle shown in some embodiments of the present description;

FIG. 5 is an exemplary structural schematic diagram of a recessed structure shown in accordance with some embodiments of the present description;

fig. 6 is an exemplary structural schematic diagram of another recess structure shown in accordance with some embodiments of the present description.

Reference numerals illustrate: 100. a water tank; 110. a housing; 120. a recessed structure; 121. a limit groove; 122. a guide groove; 125. a second elastic arm; 125-1, a second fixed end; 125-2, a second free end; 150. pressing a key; 151. a pressing surface; 151-1, pressing stripes; 152. a fastening part; 153. a limiting piece; 154. a guide member; 154-1, reinforcing protrusions; 155. a first elastic arm; 155-1, a first fixed end; 155-2, a first free end; 156. a connection protrusion; 160. an elastic member.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present specification, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is apparent that the drawings in the following description are only some examples or embodiments of the present specification, and it is possible for those of ordinary skill in the art to apply the present specification to other similar situations according to the drawings without inventive effort. Unless otherwise apparent from the context of the language or otherwise specified, like reference numerals in the figures refer to like structures or operations.

It will be appreciated that "system," "apparatus," "unit" and/or "module" as used herein is one method for distinguishing between different components, elements, parts, portions or assemblies at different levels. However, if other words can achieve the same purpose, the words can be replaced by other expressions. As used in this specification and the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. Related definitions of other terms will be given in the description below.

The breathing machine is a device which can replace, control or change normal physiological breathing of people, increase the ventilation of lungs, improve the respiratory function and reduce the consumption of the respiratory function. Currently ventilators are commonly used to treat sleep apnea or other respiratory disorders. In the use process of the breathing machine, in order to ensure that a patient can normally use the breathing machine for a long time (for example, about 10 hours), the stimulation of cold dry gas to respiratory tract mucous membranes needs to be reduced, so that most of the breathing machines are provided with a humidifying water tank. The breathing machine used in the current market is detached from the host computer, so that the problems of difficult operation, laborious detachment and the like are solved.

Some embodiments of the present disclosure provide a water tank for a ventilator, which mainly includes a housing and a pressing key disposed on an outer surface of the housing. The press key is configured to: the water tank can be assembled to or disassembled from the main machine of the breathing machine by being pressed in a direction close to the inside of the shell under the action of external force; when the external force is released, the pressing key can rebound and reset towards the direction far away from the inside of the shell, so that the water tank is fixed to the main machine of the respirator or reset after being disassembled. Through the setting of pressing the key, realize that the water tank can dismantle the setting with the breathing machine host computer, reduced the structure complexity of water tank. Moreover, through the activity setting of pressing the key for the water tank can keep stable at the dismantlement in-process, is difficult for producing rocking relatively the breathing machine host computer, thereby makes the water tank have multiple choice with the connected mode of breathing machine host computer, for example face connection or plug-in connection etc.. Meanwhile, the water tank is stable in the disassembly process and is not easy to generate position change, so that the difficulty of the water tank entering the main machine of the breathing machine is reduced, and the water tank is simpler to disassemble and assemble.

Some embodiments of the present disclosure also provide a ventilator that includes the above-described water tank. The water tank of this breathing machine can dismantle the setting, has reduced the clearance degree of difficulty. And the water tank is convenient to disassemble and assemble, and various connection modes are arranged between the water tank and the main machine of the breathing machine.

Fig. 1 is an exemplary external view of a water tank according to some embodiments of the present specification, fig. 2 is an exemplary mating structure of a pressing key and a recess structure according to some embodiments of the present specification, fig. 3 is an exemplary structure of a pressing key according to some embodiments of the present specification, fig. 4 is another perspective exemplary structure of a pressing key according to some embodiments of the present specification, fig. 5 is an exemplary structure of a recess structure according to some embodiments of the present specification, and fig. 6 is an exemplary structure of another recess structure according to some embodiments of the present specification. The structure of water tank 100 is described below with reference to fig. 1 to 6.

As shown in fig. 1, some embodiments of the present description provide a water tank 100 for a ventilator, which mainly includes a housing 110 and a pressing key 150 provided at an outer surface of the housing 110. Referring to fig. 1 and 2, the pressing key 150 is configured to: can be pressed in a direction approaching the inside of the housing 110 by an external force so that the water tank 100 can be assembled to or disassembled from the ventilator main unit. In some embodiments, pressing key 150 may include a resilient structure (not labeled in the figures) that may be used to: when the pressing key 150 is pressed in a direction approaching the inside of the housing 110, the resilient structure is elastically deformed; when the external force is released, the rebound structure returns to deform to drive the pressing key 150 to rebound in a direction away from the inside of the housing 110, so that the water tank 100 is fixed to the main machine of the respirator or reset after being disassembled. Therefore, during the assembly or release process of the water tank 100, the whole water tank 100 can be kept stable (for example, the relative positions of the parts of the housing 110 are kept unchanged, etc.), so that the water tank 100 can be conveniently connected with the main unit of the breathing machine, the connection difficulty is reduced, and the water tank 100 and the main unit of the breathing machine can adopt various connection modes (for example, surface connection mode, plug-in mode, etc.).

In some embodiments, the pressing key 150 may be disposed on the upper surface of the housing 110, and the pressing key 150 may be pressed downward by an external force; after the external force is released, the pressing key 150 can rebound upward to reset under the driving of the rebound structure. In some embodiments, the push key 150 may also be disposed on other surfaces of the housing 110, such as the bottom surface, the front surface, the side surfaces, etc. In some embodiments, the number of key presses 150 may be one or more. For example, the number of the pressing keys 150 may be one, provided on the upper surface or the front surface of the housing 110, or the like. For another example, the number of the pressing keys 150 may be two, and may be respectively disposed on different surfaces of the housing 110. Considering the operability of the water tank 100 when actually detached from the ventilator main unit, when the number of the pressing keys 150 is too large, the operation difficulty of the operator is large, the operation is difficult by one hand, and the number of the pressing keys 150 may be one or two. When the number of the pressing keys 150 is two, the two pressing keys 150 are respectively disposed on two opposite surfaces, such as an upper surface and a bottom surface, of the housing 110. For convenience of description, the structure of the push button 150 and the housing 110 will be described below by taking an example in which the push button 150 is provided on the upper surface of the housing 110. Note that, the structure of the pressing key 150 disposed on the other surface of the housing 110 is the same as or similar to the structure of the pressing key 150 disposed on the upper surface of the housing 110, and will not be described in detail herein.

In some embodiments, the length direction of the housing 110 may be defined as the X direction, the width direction of the housing 110 as the Y direction, and the height direction of the housing 110 as the Z direction. And, the right is the X direction, the left is the opposite direction of the X direction, and the shell 110 enters the main machine of the breathing machine leftwards (namely along the opposite direction of the X direction) to realize connection. The upper direction is the Z direction, and the lower direction is the opposite direction of the Z direction. The push key 150 moves downward, i.e., the push key 150 moves in the opposite direction to the Z direction; the push key 150 moves upward, i.e., the push key 150 moves in the Z direction. The front is the reverse direction of the Y direction, and the back is the Y direction.

In some embodiments, the push button 150 further includes a connection structure 152, the connection structure 152 being removably coupled to the ventilator main unit. When the push button 150 is pushed in a direction (e.g., downward) toward the inside of the housing 110, the connection structure 152 is separated from the main body of the ventilator, so that the water tank 100 can be detached from the main body of the ventilator. When the key 150 is pressed to reset, the connection structure 152 can be connected with the ventilator main unit, so that the connection and fixation of the water tank 100 and the ventilator main unit are realized.

As shown in fig. 2, in some embodiments, the connection structure 152 is disposed at an end of the push button 150 near the ventilator main unit, i.e., in the X direction, the connection structure 152 is disposed at the left side of the push button 150, so as to facilitate connection of the connection structure 152 with the ventilator main unit. In some embodiments, the connection structure 152 may include a snap protrusion and the ventilator host may include a groove that mates with the snap protrusion, with only a degree of freedom of movement between the snap protrusion and the groove along the direction of movement of the push key 150 (e.g., the Z-direction, i.e., the up-down direction). During the installation of water tank 100, when push button 150 is pushed by an external force in a direction (e.g., downward) toward the inside of housing 110, the snap protrusions move synchronously in a direction (e.g., downward) toward the inside of housing 110, at which time water tank 100 may be moved leftward (i.e., in a direction opposite to the X direction) into the ventilator main unit until the snap protrusions move to positions corresponding to the grooves. When the external force is released, the pressing key 150 is reset in a direction away from the inside of the housing 110 (e.g., upward), and the snap protrusion enters the groove to realize the snap connection and fixation, thereby realizing the locking of the connection between the water tank 100 and the ventilator main unit. In the process of assembling and disassembling the water tank 100, when the pressing key 150 is pressed by an external force in a direction (for example, downward) close to the inside of the housing 110, the fastening protrusion moves in a direction (for example, downward) close to the inside of the housing 110, and moves out of the groove, so that the connection between the water tank 100 and the ventilator main unit is unlocked. At this time, water tank 100 may be moved out of the ventilator main unit rightward (i.e., in the X direction), thereby achieving separation of water tank 100 from the ventilator main unit. After the water tank 100 is disassembled, the external force can be released, and the pressing key 150 is reset.

In some embodiments, the connection structure 152 and the ventilator main unit may also include other connection modes capable of being locked or unlocked by moving, for example, the connection structure 152 and the ventilator main unit may be a magnetic connection, when the push key 150 moves in a direction away from the interior of the housing 110 (for example, upward, i.e., Z direction) to make contact with the connection structure 152 and magnetically connect with the ventilator main unit, so as to achieve locking of the connection between the water tank 100 and the ventilator main unit; when the pressing key 150 moves in a direction approaching the inside of the housing 110 (e.g., downward, i.e., the opposite direction of the Z direction) until the connection structure 152 is separated from the ventilator main unit, and the connection structure 152 does not automatically approach the ventilator main unit under the action of magnetic force, the connection between the water tank 100 and the ventilator main unit can be unlocked.

Referring to fig. 2, 5 and 6, in some embodiments, the upper surface of the housing 110 includes a recess 120, and the pressing key 150 is accommodated in the recess 120. Pressing key 150 may move within recessed structure 120 in a direction toward or away from the interior of housing 110 (e.g., upward or downward) to thereby effect locking or unlocking of the connection of water tank 110 to the ventilator's main unit. The rebound structure is disposed between one side (i.e., the lower side) of the pressing key 150 near the inside of the housing 110 and the bottom wall of the recess structure 120, and the rebound structure can drive the pressing key 150 to move in a direction away from the bottom wall of the recess structure 120 (i.e., a direction away from the inside of the housing 110, upward) during the process of recovering the deformation.

Referring to fig. 2 and 3, in some embodiments, the pressing key 150 includes a pressing surface 151, and the pressing surface 151 is disposed on a surface (i.e., an upper surface) of the pressing key 150 away from the interior of the housing 110, for providing a pressed area for a user. In some embodiments, the connection structure 152 may be integrally formed with the pressing surface 151, reducing the manufacturing steps and difficulty of the pressing key 150.

Referring to fig. 3, in some embodiments, a pressing stripe 151-1 may be provided on the pressing surface 151. The plurality of pressing stripes 151-1 may be disposed at intervals in the X direction. The pressing stripe 151-1 may serve as a tactile cue for a user to press the pressing position of the pressing surface 151. Meanwhile, the pressing stripes 151-1 may also play a role in increasing friction and preventing slipping, preventing slipping of hands on the pressing surface 151 when operated by a user, and improving operation safety of the water tank 100.

Referring to fig. 2, 3 and 4, in some embodiments, at least one of a limiting structure and a guiding structure is further disposed between the pressing key 150 and an outer surface (e.g. the concave structure 120) of the housing 110. Wherein, the limiting structure may be used to limit the range of movement of the push key 150 in a direction away from the inside of the housing 110 (e.g., upward), and the push key 150 may be connected with the recess structure 120 through the limiting structure. The guide structure may be used to guide the push key 150 to move along a preset path.

In some embodiments, the number of limit structures may be a plurality of two or more. In some embodiments, two sides (front side and rear side) of the push button 150 in the width direction (i.e., Y direction) may be provided with stopper structures, respectively, and the number of stopper structures on the two sides may be the same or different. For example, two sides of the push key 150 in the Y direction may be provided with two stopper structures, respectively. Wherein, two limit structures on any side are arranged at intervals along the X direction to improve the connection strength of the pressing key 150 and the concave structure 120. In some embodiments, the right side of the push button 150 in the X direction may also be provided with one or more limit structures. In some embodiments, one or both or three of the front, rear and right sides of the push key 150 may be provided with limit structures, and the number of limit structures provided per side may be the same or different.

In some embodiments, the limiting structure may include a limiting member 153 and a limiting groove 121. Wherein, the limiting member 153 may be disposed at one of a side (i.e., a lower side) of the push key 150 near the inside of the housing 110 or an outer surface (e.g., the concave structure 120) of the housing 110, and the limiting groove 121 may be disposed at the other of a side (i.e., a lower side) of the push key 150 near the inside of the housing 110 or an outer surface (e.g., the concave structure 120) of the housing 110. For example, as shown in fig. 5 and 6, the limiting member 153 may be disposed on a side (i.e., a lower side) of the pressing key 150 near the interior of the housing 110, the limiting groove 121 may be disposed in the concave structure 120, and the limiting groove 121 may cooperate with the limiting member 153 to limit the pressing key 150 in the concave structure 120 during resetting of the pressing key 150. In some embodiments, the stopper 153 is located in the stopper groove 121, and the stopper 153 may move in a direction (e.g., up-down direction) toward and/or away from the inside of the housing 110 in the stopper groove 121. The height of the limiting groove 121 is the moving range of the pressing key 150. In some embodiments, the limiting grooves 121 are disposed on the inner wall of the concave structure 120 and are in one-to-one correspondence with the limiting members 153. That is, the setting positions and the setting numbers of the limiting grooves 121 are in one-to-one correspondence with the setting positions and the setting numbers of the limiting members 153. For example, four limiting structures are disposed between the pressing key 150 and the concave structure 120, wherein two limiting structures are disposed at intervals along the X direction on the front side of the pressing key 150 in the Y direction, and the other two limiting structures are disposed at intervals along the X direction on the rear side of the pressing key 150 in the Y direction, and at this time, the front side and the rear side of the pressing key 150 in the Y direction are respectively provided with two limiting members 153 disposed at intervals along the X direction; correspondingly, two limiting grooves 121 spaced along the X direction may be respectively disposed on two inner sidewalls of the recess structure 120 in the Y direction. In some embodiments, the limiting member 153 may include, but is not limited to, a hook, a latch, etc. that can mate with the limiting groove 121.

In some embodiments, the limit groove 121 has a predetermined height in the Z direction, so that when the limit piece 153 moves in the limit groove 121 to contact with the inner wall of the end of the limit groove 121 in the Z direction, the limit piece 153 is clamped in the limit groove 121 and clamped at the end edge of the limit groove 121, at this time, the pressing surface 151 of the pressing key 150 may be flush with the outer surface (e.g., the upper surface) of the housing 110, as shown in fig. 2, so as to avoid the pressing surface 151 protruding or recessing at the recessing structure 120 relative to the outer surface of the housing 110, and avoid the pressing surface 151 interfering with the connection of the water tank 100 and the ventilator main unit.

In some embodiments, the guide structure includes a guide 154 and a guide slot 122. Wherein the guide 154 may be disposed at one of a side (i.e., a lower side) of the push key 150 near the inside of the housing 110 or an outer surface (e.g., the concave structure 120) of the housing 110, and the guide groove 122 may be disposed at the other of a side (i.e., a lower side) of the push key 150 near the inside of the housing 110 or an outer surface (e.g., the concave structure 120) of the housing 110. For example, as shown in fig. 2, 3 and 4, the guide 154 may be provided at a side (e.g., a lower side) of the pressing surface 151 near the inside of the case 110, the guide groove 122 may be provided in the recess structure 120, and the guide 154 may be moved in a direction (e.g., an up-down direction) toward and/or away from the inside of the case 110 in the guide groove 122. The guide member 154 may be matched with the guide groove 122, and the guide groove 122 may be used as a preset path for guiding the movement direction of the pressing key 150 in the pressing and rebound resetting process, so that the guide member 154 moves in the guide groove 122 in the movement process of the pressing key 150, the pressing key 150 is prevented from tilting in the X and/or Y direction in the movement process, the pressing surface 151 may be kept stable in the X and/or Y direction, and the stability of the pressing key 150 is improved.

In some embodiments, a guide structure may be provided on the pressing surface 151 in a region where the stress point is estimated (e.g., near the middle in the length direction). By the arrangement, the distance between the stress position of the pressing surface 151 and the guiding structure in the X direction can be reduced as much as possible, so that when the user presses the pressing surface 151, the stress direction of the pressing key 150 can be substantially coincident with the extending direction (i.e. the opposite direction of the Z direction or the Z direction) of the guiding structure (e.g. the guiding member 154 and/or the guiding groove 122), thereby reducing friction during the movement of the pressing key 150 and reducing the pressing difficulty.

Referring to fig. 4, in some embodiments, a reinforcing protrusion 154-1 may be further disposed on a side of the guide member 154 away from the inner wall of the recess 120, and the reinforcing protrusion 154-1 may be disposed to extend along the Z direction. The reinforcing protrusions 154-1 may strengthen the guide 154, reducing the likelihood of the guide 154 being broken or deformed under force. In some embodiments, the guide 154 may be provided with a plurality of reinforcing protrusions 154-1, and the plurality of reinforcing protrusions 154-1 are spaced apart in the X-direction.

Referring to fig. 4, in some embodiments, between the pressing key 150 and the concave structure 120, a guiding structure may be disposed on two sides (front side and rear side) of the pressing key 150 in the Y direction, respectively. The two guide structures cooperate together to guide movement of the push key 150, enhancing stability of the push key 150. In some embodiments, in the X-direction, a guide structure (e.g., guide 154 and/or guide slot 122) may be located between two stop structures (e.g., stop 153 and/or stop slot 121), as shown in fig. 4.

Referring to fig. 5 and 6, in some embodiments, the setting positions and the setting numbers of the guide grooves 122 may correspond to the setting positions and the setting numbers of the guide members 154 one by one. Illustratively, two guiding structures are disposed between the pressing key 150 and the concave structure 120, wherein one guiding structure is disposed on the front side of the pressing key 150 in the Y direction, and the other guiding structure is disposed on the rear side of the pressing key 150 in the Y direction, and at this time, two sides (front side and rear side) of the pressing key 150 in the Y direction may be respectively provided with one guiding member 154, and the guiding member 154 on each side is disposed near the estimated stress point region (for example, the middle in the length direction) of the pressing surface 151; correspondingly, two inner sidewalls of the recess structure 120 in the Y direction may be respectively provided with a corresponding guide groove 122, and the guide groove 122 of each side may be disposed at a corresponding position in the middle of the pressing surface 151.

Referring to fig. 2-4, in some embodiments, the resilient structure may include at least one of a resilient arm (e.g., the first resilient arm 155 and/or the second resilient arm 125) and a resilient member 160. Wherein the elastic arm includes a free end and a fixed end, the elastic arm is configured to: when the push button 150 is pushed in a direction approaching the inside of the housing 110 (e.g., downward), the free end slides in a direction away from the fixed end, and the elastic arm is elastically deformed; when the external force is released, the free end slides to the direction close to the fixed end, and the elastic arm recovers deformation. The elastic member 160 is configured to: when the pressing key 150 is pressed in a direction (e.g., downward) approaching the inside of the housing 110, the height of the elastic member 160 is reduced and elastically deformed; when the external force is released, the height of the elastic member 160 increases and the deformation is restored.

In some embodiments, the fixed end of the elastic arm is fixedly connected to one of the side (e.g., the lower side) of the push button 150 near the interior of the housing 110 or the bottom wall of the recess structure 120, and the free end of the elastic arm abuts the other of the side (e.g., the lower side) of the push button 150 near the interior of the housing 110 or the bottom wall of the recess structure 120. When the push button 150 is pushed down by an external force or after the external force is released, the free end slides relatively to the other of the side (e.g., lower side) of the push button 150 near the inside of the housing 110 or the bottom wall of the recess structure 120. When the push button 150 is pushed by an external force in a direction (e.g., downward) toward the inside of the housing 110, the free end slides away from the fixed end, and the elastic arm elastically deforms, thereby accumulating elastic potential energy. When the external force is released, the free end slides in a direction approaching to the fixed end, and the elastic arm restores the elastic deformation, so that the push key 150 is driven to rebound in a direction (for example, upward) away from the inside of the housing 110. In the present specification, abutting means contacting but not being forced, or contacting and receiving a pre-compression force. By way of example only, when the push button 150 is in a normal state (i.e., not being pushed by an external force), the free end abuts against the bottom wall of the concave structure 120, which may mean that the free end just contacts the bottom wall of the concave structure 120 and is in an unstressed state, and the elastic arm is not elastically deformed; alternatively, the free end contacts the bottom wall of the concave structure 120, and the first free end 155-2 is in a stressed state, the elastic arm is stressed to elastically deform, and the elastic arm accumulates elastic potential energy.

In some embodiments, the resilient arms may include at least one first resilient arm 155 and/or at least one second resilient arm 125. The first elastic arm 155 and/or the second elastic arm 125 may drive the push key 150 to rebound in a direction away from the inside of the housing 110 (e.g., upward) after the push key 150 is pushed in a direction toward the inside of the housing 110 (e.g., downward).

In some embodiments, the first elastic arm 155 is disposed at a side (e.g., a lower side) of the pressing surface 151 near the inside of the case 110. The first elastic arm 155 includes a first fixed end 155-1 and a first free end 155-2, as shown in fig. 4. The first fixed end 155-1 of the first elastic arm 155 is fixed to a side of the pressing key 150 opposite to the pressing surface 151 (i.e., a side of the pressing surface 151 near the inside of the housing 110, for example, a lower side), and the first free end 155-2 of the first elastic arm 155 abuts against the bottom wall of the recess structure 120, as shown in fig. 2. In some embodiments, when the pressing key 150 is pressed by an external force in a direction approaching the interior of the housing 110 (e.g., downward), the first free end 155-2 of the first elastic arm 155 may slide relative to the bottom wall of the recess 120, and the deformation of the first elastic arm 155 accumulates elastic potential energy. In some embodiments, the first resilient arm 155 is disposed along the X-direction; when the pressing key 150 is pressed by an external force in a direction approaching the inside of the housing 110 (e.g., downward), the first free end 155-2 of the first elastic arm 155 is far away from the first fixed end 155-1 in the X direction; correspondingly, the first free end 155-2 of the first elastic arm 155 is close 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, the first free end 155-2 of the first elastic arm 155 slides on the bottom wall of the concave structure 120, and the first free end 155-2 is close to the first fixed end 155-1 in the X direction, and the first free end 155-2 is far away from the first fixed end 155-1 in the Z direction, so that the push button 150 is driven to move in the Z direction in a direction away from the inside of the housing 110 (i.e., upward), so that the push button 150 returns to the position before being pushed.

In some embodiments, when the pressing key 150 is in a normal state (i.e. not pressed by an external force), the first free end 155-2 is kept in abutment with the bottom wall of the recess structure 120, so that the pressing key 150 is pressed in a direction (e.g. downward) approaching the interior of the housing 110, and after the external force is released, the first elastic arm 155 can drive the pressing key 150 to resume the pre-pressing position.

In some embodiments, the first free end 155-2 may be rounded as shown in fig. 3, 4. The rounded corners can reduce friction between the first free end 155-2 and the bottom wall of the concave structure 120, and reduce difficulty in sliding the first free end 155-2 relative to the bottom wall of the concave structure 120.

In some embodiments, the number of first resilient arms 155 may be a plurality of two or more. Referring to fig. 4, in some embodiments, the number of the first elastic arms 155 may be two, and the two first elastic arms 155 are arranged in parallel along the Y direction at intervals, so as to ensure that the deformation of the two first elastic arms 155 can be kept consistent during the pressing and resetting process of the pressing key 150, and improve the stability of the pressing key 150.

Referring to fig. 6, in 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 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 concave structure 120, and the second free end 125-2 of the second elastic arm 125 abuts against a side of the pressing key 150 away from the pressing surface 151 (i.e., a side of the pressing key 150 near the interior of the housing 110, a lower side). When the pressing key 150 is pressed by an external force in a direction approaching the inside of the housing 110 (e.g., downward), the second free end 125-2 of the second elastic arm 125 slides with respect to the pressing key 150, and the second elastic arm 125 deforms to accumulate elastic potential energy. When the external force is released, the second free end 125-2 of the second elastic arm 125 slides relatively to the lower side of the pressing key 150, and the second elastic arm 125 recovers the deformation to release the elastic potential energy, so as to drive the pressing key 150 to rebound and reset in a direction away from the inside of the housing 110 (e.g. upward). In the pressing and resetting process of the pressing key 150, the working process and principle of the second elastic arm 125 can refer to the relevant content of the first elastic arm 155, which is not described herein.

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

In some embodiments, the number of second resilient arms 125 may be a plurality of two or more. Referring to fig. 6, in some embodiments, the number of the second elastic arms 125 may be two, and the two second elastic arms 125 are arranged in parallel along the Y direction at intervals, so as to ensure that the deformation of the two first elastic arms 155 can be kept consistent during the pressing and resetting process of the pressing key 150, and improve the stability of the pressing key 150.

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

Referring to fig. 2, in some embodiments, one end of the elastic member 160 may be fixedly connected to one of the lower side of the pressing surface 151 or the bottom wall of the concave structure 120, i.e. one end of the elastic member 160 is fixed, and the other end of the elastic member may abut against the other of 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 concave structure 120, respectively. That is, one end of the elastic member 160 may be fixed to the lower side of the pressing surface 151, and the other end may abut against the bottom wall of the recess structure 120; alternatively, one end of the elastic member 160 may be fixed to the bottom wall of the recess structure 120, and the other end may abut against the lower side of the pressing surface 151. When the push button 150 is pushed by an external force in a direction (e.g., downward) toward the inside of the housing 110, the elastic member 160 is elastically deformed while being reduced in height, and elastic potential energy is accumulated. When the external force is released, the elastic member 160 starts to resume its shape, and drives the pressing key 150 to move in a direction away from the inside of the housing 110 (e.g., upward) to resume its pre-pressing position.

In some embodiments, there may also be a plug connection between one end of the resilient member 160 and one of the underside of the pressing surface 151 or the bottom wall of the recessed structure 120. Specifically, referring to fig. 2 and 4, a side of the pressing key 150 opposite to the pressing surface 151 (i.e., a lower side of the pressing key 150) or a bottom wall of the recess 120 may be provided with a connection protrusion 156, and the connection protrusion 156 may be connected to the elastic member 160. When the connection protrusion 156 is inserted into the elastic member 160, the elastic member 160 is mounted and fixed by the connection protrusion 156. When the connection protrusion 156 is pulled out from the elastic member 160, the elastic member 160 can be detached and replaced.

In some embodiments, the elastic member 160 may be disposed at a middle position of the concave structure 120 and the pressing key 150 in the X direction (as shown in fig. 2 and 4), so as to avoid the pressing key 150 from tilting in the X direction, and improve the stability of the pressing key 150. At this time, in the X direction, the elastic member 160 may be located between the fastening portion 152 and the first free end 155-2 of the first elastic arm 155, as shown in fig. 2 and 4. In some embodiments, the elastic member 160 may be disposed at a middle position of the concave structure 120 and the pressing key 150 in the Y direction (as shown in fig. 4), two first elastic arms 155 may be disposed at two sides of the elastic member 160, and two second elastic arms 125 may be disposed at two sides of the elastic member 160, respectively, so as to improve stability of the pressing key 150.

In some embodiments, the resilient member 160 may comprise a resilient material (e.g., silicone, etc.) or a resilient structure (e.g., spring, etc.). In some embodiments, the elastic member 160 may be a spring, which has a long service life and is easy to replace.

In some embodiments, the elastic member 160 or the second elastic arm 125 may be alternatively disposed in the concave structure 120. In some embodiments, the elastic member 160 and the second elastic member 125 may be disposed in the concave structure 120 at the same time.

Some embodiments of the present disclosure also provide a ventilator that includes the water tank 100 described above.

While the basic concepts have been described above, it will be apparent to those skilled in the art that the foregoing detailed disclosure is by way of example only and is not intended to be limiting. Although not explicitly described herein, various modifications, improvements, and adaptations to the present disclosure may occur to one skilled in the art. Such modifications, improvements, and modifications are intended to be suggested within this specification, and therefore, such modifications, improvements, and modifications are intended to be included within the spirit and scope of the exemplary embodiments of the present invention.

Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments of this specification. Other variations are possible within the scope of this description. Thus, by way of example, and not limitation, alternative configurations of embodiments of the present specification may be considered as consistent with the teachings of the present specification. Accordingly, the embodiments of the present specification are not limited to only the embodiments explicitly described and depicted in the present specification.

Claims (12)

1. A water tank for a ventilator, comprising a housing and a pressing key provided on an outer surface of the housing, the pressing key being configured to be pressed in a direction approaching an inside of the housing by an external force so that the water tank can be assembled to or disassembled from a ventilator main unit; wherein,

The pressing key includes a rebound structure for: when the pressing key is pressed in a direction approaching to the inside of the shell, the rebound structure generates elastic deformation; when the external force is released, the rebound structure resumes deformation to drive the pressing key to rebound and reset in the direction away from the inside of the shell, so that the water tank is fixed to the main machine of the respirator or reset after being disassembled.

2. The water tank of claim 1, wherein the push button further comprises a connection structure disposed at an end of the push button adjacent to the ventilator main unit, the connection structure being detachably connected to the ventilator main unit, the connection structure being separated from the ventilator main unit when the push button is pushed in a direction approaching the inside of the housing.

3. The tank of claim 1 wherein the resilient structure comprises at least one of a resilient arm and a resilient member;

the spring arm includes a free end and a fixed end, the spring arm configured to: when the pressing key is pressed in a direction approaching to the inside of the shell, the free end slides in a direction far away from the fixed end, and the elastic arm is elastically deformed; when the external force is released, the free end slides to a direction close to the fixed end, and the elastic arm recovers deformation;

The elastic member is configured to: when the pressing key is pressed in a direction approaching to the inside of the shell, the height of the elastic piece is reduced and the elastic piece is elastically deformed; when the external force is released, the height of the elastic piece is increased and deformation is recovered.

4. A cistern as claimed in claim 3, wherein said fixed end of said resilient arm is fixedly connected to one of a side of said push button adjacent said housing interior or said housing outer surface, and said free end of said resilient arm abuts the other of said side of said push button adjacent said housing interior or said housing outer surface, and said free end slides relative to the other of said side of said push button adjacent said housing interior or said housing outer surface upon depression of said push button in a direction toward said housing interior or upon release of said external force.

5. The water tank of claim 4 wherein the resilient arms include at least one first resilient arm and/or at least one second resilient arm,

the first fixed end of the first elastic arm is fixed on one side, close to the inside of the shell, of the pressing key, the first free end of the first elastic arm is in abutting connection with the outer surface of the shell, and when the pressing key is pressed in the direction close to the inside of the shell or the external force is released, the first free end and the upper surface of the shell slide relatively;

The second fixed end of the second elastic arm is fixed on the outer surface of the shell, the second free end of the second elastic arm is abutted to one side, close to the inside of the shell, of the pressing key, and when the pressing key is pressed in the direction close to the inside of the shell or after the external force is released, the second free end and one side, close to the inside of the shell, of the pressing key slide relatively.

6. A cistern as claimed in claim 3, wherein one end of the resilient member is fixedly connected to one of the side of the push button adjacent the interior of the housing or the outer surface of the housing, and the other end of the resilient member abuts the other of the side of the push button adjacent the interior of the housing or the outer surface of the housing.

7. The water tank as claimed in claim 6, wherein one of a side of the push key adjacent to the inside of the housing or an outer surface of the housing is provided with a coupling protrusion, and the coupling protrusion is coupled with the elastic member.

8. The water tank of claim 1, wherein at least one of a limit structure and a guide structure is further provided between the push button and the outer surface of the housing, wherein,

The limiting structure is used for limiting the range of movement of the pressing key in a direction away from the inside of the shell;

the guide structure is used for guiding the pressing key to move according to a preset path.

9. The water tank according to claim 8, wherein the limit structure includes a limit piece and a limit groove, the limit piece is provided on one side of the push key close to the inside of the housing or on one of the outer surfaces of the housing, the limit groove is provided on the other side of the push key close to the inside of the housing or on the other outer surface of the housing, and the limit piece is located in the limit groove and is movable in the limit groove in a direction close to and/or away from the inside of the housing.

10. The water tank as claimed in claim 8, wherein the guide structure includes a guide and a guide groove, the guide being provided to one of a side of the push key near the inside of the housing or the outside surface of the housing, the guide groove being provided to the other of the side of the push key near the inside of the housing or the outside surface of the housing, the guide being movable in a direction approaching and/or moving away from the inside of the housing within the guide groove.

11. The cistern as claimed in any one of claims 1-10, wherein the housing outer surface includes a recessed structure, the push button is received in the recessed structure, and the resilient structure is disposed between a side of the push button adjacent the housing interior and a bottom wall of the recessed structure.

12. A ventilator comprising a tank according to any one of claims 1-11.