Humidifying device and oxygen generator

Abstract

The invention belongs to the technical field of oxygen generation equipment, and provides a humidifying device and an oxygen generator, the humidifying device comprises a humidifying box, a liquid storage cavity, a humidifying cavity, a liquid supply device, a liquid supply device and a liquid supply device, and the humidifying box is provided with a liquid storage cavity and a humidifying cavity; the valve assembly has an opening state and a closing state which can be switched mutually; the control assembly is used for switching the valve assembly from the closed state to the open state when the liquid level in the liquid storage area is smaller than or equal to a first preset value and switching the valve assembly from the open state to the closed state when the liquid level in the liquid storage area is larger than or equal to a second preset value, and the first preset value is smaller than the second preset value; the humidifying assembly can adsorb the humidifying liquid in the humidifying area; the humidifying cavity is provided with a first air inlet and a first air outlet, so that gas to be humidified can enter the humidifying cavity and be humidified by the humidifying assembly. The humidifying device and the oxygen generator provided by the invention are simple in structure and low in noise.

Description

Technical Field

[0001] The present invention relates to the technical field of oxygen production equipment, and in particular to a humidifying device and an oxygen generator. Background Art

[0002] Since the oxygen just separated by the oxygen concentrator is relatively dry, and dry oxygen can easily damage the user's mucous membranes, oxygen concentrators are usually equipped with a humidifier to humidify the just separated oxygen.

[0003] Currently, oxygen concentrators on the market typically introduce oxygen into a humidifying liquid (e.g., water) through a tube, allowing the oxygen to come into contact with the humidifying liquid to humidify the oxygen. However, introducing oxygen into the humidifying liquid creates bubbles and produces a loud noise, which significantly affects the patient's rest quality and results in a poor user experience. Summary of the Invention

[0004] In view of the defects in the prior art, the object of the present invention is to provide a humidification device and an oxygen concentrator to solve or alleviate the above-mentioned technical problems and / or one or more other technical problems existing in the prior art.

[0005] In order to achieve the above object, the present invention provides a humidification device, comprising:

[0006] The humidification box comprises a liquid storage chamber and a humidification chamber, wherein the liquid storage chamber is provided with a liquid adding port, the humidification chamber comprises a water storage area and a humidification area, and the liquid storage chamber and the liquid storage area are connected via a water channel;

[0007] a valve assembly disposed at the waterway, which has an open state and a closed state that can be switched between each other, wherein when the valve assembly is in the open state, the waterway is in an unobstructed state, and when the valve assembly is in the closed state, the waterway is in a disconnected state;

[0008] a control assembly configured to switch the valve assembly from a closed state to an open state when the liquid level in the liquid storage area is less than or equal to a first preset value, and to switch the valve assembly from an open state to a closed state when the liquid level in the liquid storage area is greater than or equal to a second preset value, wherein the first preset value is less than the second preset value; and

[0009] a humidifying component disposed in the humidifying chamber, the humidifying component being capable of absorbing the humidifying liquid in the humidifying area;

[0010] The humidification chamber has a first air inlet and a first air outlet, so that the gas to be humidified can enter the humidification chamber and be humidified by the humidification component.

[0011] Furthermore, the humidification component includes:

[0012] a buoyancy seat disposed in the humidification area, the buoyancy seat being slidably connected to the humidification box, and having a density less than that of the humidification liquid, so that the buoyancy seat can move as the liquid level of the humidification liquid in the humidification area changes;

[0013] a humidifying element, which is disposed on top of the buoyancy seat and is capable of absorbing humidifying liquid and transferring the humidifying liquid to the gas to be humidified; and

[0014] a liquid absorbing element in a cylindrical shape, wherein a first end of the liquid absorbing element is connected to the humidifying element, and a second end thereof passes through the buoyancy seat and extends into the humidifying area, and the liquid absorbing element is used to absorb the humidifying liquid in the humidifying area and transfer the absorbed humidifying liquid to the humidifying element;

[0015] In which, the buoyancy seat is provided with multiple air channels, the top side wall of the buoyancy seat is provided with a second air outlet corresponding one-to-one to the air channels, the bottom side wall of the buoyancy seat is provided with a second air inlet connected to the air channels, and the second air inlet is connected to the first air inlet.

[0016] Furthermore, the humidification component further includes:

[0017] a limiting sleeve, which is hollow and has two open ends, and is disposed outside the humidifying element, wherein the bottom end of the limiting sleeve is fixedly connected to the buoyancy seat; and

[0018] A guide plate in a conical ring shape, the guide plate is sleeved on the top of the limiting sleeve, and the inner side of the guide plate is lower than the outer side;

[0019] The liquid storage cavity is annular and is sleeved outside the humidification cavity. A liquid outlet is correspondingly provided on the side wall of the liquid storage cavity, and the liquid outlet is located above the guide plate.

[0020] Furthermore, the valve assembly includes a solenoid valve, and the solenoid valve is arranged at the water channel;

[0021] The control component includes a detection module and a controller;

[0022] The detection module and the solenoid valve are electrically connected to the controller, and the detection module is used to detect the liquid level of the humidifying liquid in the liquid storage area and convert the detected information into a corresponding electrical signal and transmit it to the controller;

[0023] The controller is used to convert the received electrical signal into a corresponding control signal and transmit the control signal to the solenoid valve to control the state of the solenoid valve.

[0024] Furthermore, the detection module includes a liquid level sensor, which is arranged in the humidification area. The liquid level sensor is used to detect the liquid level of the humidification liquid in the humidification area and convert the detected information into a corresponding electrical signal and transmit it to the controller.

[0025] Furthermore, the valve assembly includes a valve plate, which is arranged at the water channel and is rotatably connected to the humidification box. A water outlet hole is correspondingly provided on the valve plate, and the water outlet hole is arc-shaped. The center line of the water outlet hole coincides with the rotation center line of the valve plate, and the angle between the two ends of the water outlet hole and the rotation center line of the valve plate is equal to 180°;

[0026] The control component includes:

[0027] a rack fixedly connected to the buoyancy seat;

[0028] a first gear, which is rotatably connected to the humidification box, and the first gear is engaged with the rack, so that when the rack moves, it can drive the first gear to rotate; and

[0029] A conversion mechanism, whose power input shaft is connected to the first gear and whose power output shaft is connected to the valve plate. The conversion mechanism is used to convert the power transmitted by the first gear into power rotating in a preset direction and transmit it to the valve plate, so that the rising and falling of the buoyancy seat can only drive the valve plate to rotate in the preset direction.

[0030] Furthermore, the conversion mechanism includes:

[0031] A mounting frame, which is fixedly arranged in the humidification box;

[0032] a first rotating shaft, a first end of which is rotatably connected to the mounting frame and a second end of which is freely extending, and a power output end of the first rotating shaft is transmission-connected to the valve plate;

[0033] a first bevel gear coaxially sleeved on the first rotating shaft;

[0034] a second rotating shaft, both ends of which are rotatably connected to the mounting frame, and a power input end of the second rotating shaft is transmission-connected to the first gear;

[0035] a second bevel gear coaxially sleeved on the second rotating shaft, the second bevel gear and the second rotating shaft being transmission-connected via a first unidirectional rotation structure, the second bevel gear being located on a first side of the first bevel gear and meshing with the first bevel gear; and

[0036] a third bevel gear, coaxially sleeved on the second rotating shaft, the third bevel gear and the second rotating shaft being transmission-connected via a second unidirectional rotation structure, the third bevel gear being located on a second side of the first bevel gear and meshing with the first bevel gear;

[0037] Wherein, the power transmission directions of the first one-way transmission structure and the second one-way transmission structure are opposite.

[0038] Furthermore, the first one-way transmission structure and the second one-way transmission structure are one of ratchet structures or one-way bearings.

[0039] On the other hand, the present invention also provides an oxygen concentrator, comprising any one of the humidification devices described above.

[0040] Beneficial effects of the present invention:

[0041] The humidification device and oxygen generator provided by the present invention are provided with a humidification component. When in use, humidification is performed by passing the gas to be humidified into the humidification component adsorbed with humidification liquid. Therefore, there is no need to pass the gas to be humidified into the humidification liquid, and thus no noise such as "bubble sound" is generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0043] Figure 1 A three-dimensional view of a humidifying device provided in Example 1 of the present invention;

[0044] Figure 2 for Figure 1 A cross-sectional view of the humidification device shown;

[0045] Figure 3 for Figure 2 An enlarged view of section A is shown;

[0046] Figure 4 for Figure 2 An enlarged view of portion B is shown;

[0047] Figure 5 A three-dimensional view of a humidifying device provided in the second embodiment of the present invention;

[0048] Figure 6 for Figure 5 A cross-sectional view of the humidification device shown;

[0049] Figure 7 for Figure 6 An enlarged view of section C is shown;

[0050] Figure 8 for Figure 6 An enlarged view of section D is shown;

[0051] Figure 9 for Figure 5 A cutaway perspective view of the humidification device shown;

[0052] Figure 10 for Figure 9 An enlarged view of section E is shown;.

[0053] Reference numerals:

[0054] 100. Humidification box; 110. Liquid storage chamber; 120. Humidification chamber; 130. Liquid filling port; 140. First air inlet; 150. First air outlet; 160. Liquid outlet; 170. Water outlet pipe; 210. Solenoid valve; 220. Valve plate; 221. Water outlet; 311. Liquid level sensor; 311. Rack; 312. First gear; 313. Mounting bracket; 314. Second rotating shaft; 315. Second bevel gear; 316. Third bevel gear; 317. First rotating shaft; 318. First bevel gear; 301. First one-way transmission structure; 302. Second one-way transmission structure; 410. Buoyancy seat; 411. Airway; 412. Second air outlet; 413. Second air inlet; 420. Humidification element; 430. Liquid absorption element; 440. Limit sleeve; 450. Guide plate. DETAILED DESCRIPTION

[0055] The following embodiments of the technical solution of the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0056] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0057] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In addition, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. In the description of the present invention, "plurality" means more than two, unless otherwise specifically defined.

[0059] In this application, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0060] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0061] like Figure 1-10 As shown, the present invention provides a humidification device, including a humidification box 100, a valve component, a control component and a humidification component.

[0062] The humidification box 100 includes a liquid storage chamber 110 and a humidification chamber 120. The liquid storage chamber 110 is provided with a liquid filling port 130. The humidification chamber 120 includes a water storage area and a humidification area. The liquid storage chamber 110 and the liquid storage area are connected by a water channel. Specifically, the water channel includes a water outlet pipe 161 provided in the humidification box 100.

[0063] The valve assembly is disposed at the water channel and has a switchable open state and a closed state. When the valve assembly is in the open state, the water channel is unobstructed, allowing the humidifying liquid in the liquid storage chamber 110 to enter the liquid storage area through the water channel; when the valve assembly is in the closed state, the water channel is disconnected, preventing the humidifying liquid in the liquid storage chamber 110 from entering the liquid storage area through the water channel.

[0064] The control component is used to switch the valve component from a closed state to an open state when the liquid level in the liquid storage area is less than or equal to a first preset value; when the liquid level in the liquid storage area is greater than or equal to a second preset value, the valve component is switched from an open state to a closed state, wherein the first preset value is less than the second preset value.

[0065] The humidification component is disposed in the humidification chamber 120 . The humidification component can absorb the humidification liquid in the humidification area and transfer the humidification liquid to the gas to be humidified passing through the humidification component, so as to humidify the gas to be humidified entering the humidification component.

[0066] The humidification chamber 120 has a first air inlet 140 and a first air outlet 150, so that the gas to be humidified can enter the humidification chamber 120 and be humidified by the humidification component. It should be noted that the gas to be humidified here can be oxygen or other gases that need to be humidified.

[0067] Specifically, during use, humidifying liquid is first added to the liquid storage chamber 110 through the liquid filling port 130. The humidifying liquid in the liquid storage chamber 110 flows through the water channel into the humidification area, and the humidification component absorbs the humidifying liquid in the humidification area. Then, the gas to be humidified enters the humidification component through the first air inlet 140. As the gas passes through the humidification component, it removes the humidifying liquid from the humidification component, thereby achieving the purpose of humidifying the gas.

[0068] The humidification device provided in this embodiment does not need to pass the gas to be humidified into the humidification liquid, and therefore, no noise such as "bubble sound" will be generated.

[0069] like Figure 2 、 3 As shown in Figures 4, 6, 7, 8, and 9, in this embodiment, the humidification component includes a buoyancy seat 410, a humidification element 420, and a liquid absorption element 430.

[0070] The buoyancy seat 410 is disposed within the humidification zone and is slidably connected to the humidification chamber 100. The density of the buoyancy seat 410 is less than that of the humidification liquid, so that the buoyancy seat 410 can move as the level of the humidification liquid within the humidification zone changes. Specifically, when the level of the humidification zone rises, the buoyancy seat 410 rises under the action of buoyancy; when the level of the humidification zone drops, the buoyancy seat 410 drops under the action of gravity.

[0071] The humidification element 420 is disposed on top of the buoyancy seat 410. The humidification element 420 is capable of absorbing humidification liquid and transferring the humidification liquid to the dry gas to be humidified. Specifically, the humidification element 420 has both hygroscopic and evaporative properties. The hygroscopic property enables the humidification element 420 to absorb the humidification liquid, while the evaporative property enables the humidification element 420 to transfer the humidification liquid to the dry gas to be humidified.

[0072] The liquid absorbing element 430 is cylindrical, with a first end connected to the humidifying element 420 and a second end extending through the buoyancy seat 410 and into the humidifying area. The liquid absorbing element 430 is configured to absorb the humidifying liquid in the humidifying area and transfer the absorbed humidifying liquid to the humidifying element 420. Specifically, the humidifying element 420 and the liquid absorbing element 430 are made of a water-absorbing material, such as a hydrogel, a water-absorbing sponge, a water-absorbing resin, polyvinyl alcohol, or a non-woven fabric.

[0073] The buoyancy seat 410 is provided with a plurality of air passages 411. The top sidewall of the buoyancy seat 410 is provided with second air outlets 412 corresponding one-to-one with the air passages 411. The bottom sidewall of the buoyancy seat 410 is provided with a second air inlet 413 communicating with the air passages 411. The second air inlet 413 is communicated with the first air inlet 140. Specifically, the second air inlet 413 is connected to the first air inlet 140 via a hose.

[0074] In this embodiment, both the humidifying element 420 and the absorbing element 430 are disposed on the buoyancy seat 410, ensuring that the length of the absorbing element 430 immersed in the humidifying liquid remains consistent and does not shorten as the liquid level in the humidifying zone decreases, thereby ensuring the liquid absorption efficiency of the absorbing element 430. Simultaneously, the distance between the humidifying element 420 and the liquid level remains consistent and does not increase as the liquid level in the humidifying zone decreases, thereby ensuring the adsorption efficiency of the humidifying element 420. Furthermore, by charging the humidifying gas from the bottom of the humidifying element 420, the time it takes for the humidifying gas to pass through the humidifying element 420 is ensured, thereby ensuring the humidification effect of the humidifying element 420 on the humidifying gas. Furthermore, as the gas passes through the humidifying element 420, it can carry the humidifying liquid from below to the top, thereby ensuring the uniformity of the humidifying liquid on the humidifying element 420.

[0075] like Figure 2 、 6 As shown in FIG9 , the humidification component further includes a limiting sleeve 440 and a guide plate 450 .

[0076] The limiting sleeve 440 is hollow and open at both ends. It is mounted outside the humidification element 420 to prevent the humidified gas from diffusing outward from the sidewalls of the humidification element 420. The bottom end of the limiting sleeve 440 is fixedly connected to the buoyancy seat 410. The guide plate 450 is conical and annular and is mounted on the top of the limiting sleeve 440. The inner side of the guide plate 450 is lower than the outer side.

[0077] The liquid storage chamber 110 is annular and is sleeved outside the humidification chamber 120 . A liquid outlet 160 is correspondingly provided on the side wall of the liquid storage chamber 110 . The liquid outlet 160 is located above the guide plate 450 .

[0078] Specifically, during use, humidifying liquid is added to the liquid storage chamber 110 through the liquid adding port 130. When the humidifying liquid in the liquid storage chamber 110 reaches the position of the liquid outlet 160, the humidifying liquid in the liquid storage chamber 110 enters the humidifying chamber 120 through the liquid outlet 160. The humidifying liquid entering the humidifying chamber 120 is guided to the humidifying element 420 by the guide plate 450, so that the humidifying element 420 can quickly and fully absorb the humidifying liquid without slowly absorbing the humidifying liquid through the liquid absorption element 430, thereby achieving the purpose of improving efficiency.

[0079] The humidification assembly provided in this embodiment can enable the humidification element 420 to quickly and fully absorb the humidification liquid in the early stage of humidification, thereby improving the humidification efficiency.

[0080] like Figure 2 、 3 As shown, the valve assembly includes a solenoid valve 210, which is located at the waterway. The control assembly includes a detection module and a controller, and the detection module and the solenoid valve 210 are electrically connected to the controller. The detection module is used to detect the liquid level of the humidifying liquid in the liquid storage area and convert the detected information into a corresponding electrical signal and transmit it to the controller. The controller is used to convert the received electrical signal into a corresponding control signal and transmit it to the solenoid valve 210 to control the state of the solenoid valve 210.

[0081] Specifically, when the detection module detects that the liquid level in the humidification area is less than or equal to the first preset value, the detection module transmits the detected information to the controller, and the controller controls the solenoid valve 210 to switch from a closed state to an open state; when the detection module detects that the liquid level in the humidification area is greater than or equal to the second preset value, the detection module transmits the detected information to the controller, and the controller controls the solenoid valve 210 to switch from an open state to a closed state.

[0082] The valve assembly and control assembly provided in this embodiment have a simple structure and a reasonable design.

[0083] like Figure 3 As shown, the detection module includes a liquid level sensor 311, which is arranged in the humidification area. The liquid level sensor 311 is used to detect the liquid level of the humidification liquid in the humidification area and convert the detected information into a corresponding electrical signal and transmit it to the controller.

[0084] Of course, the detection module can also be other structures capable of detecting the liquid level, such as a float and a position sensor for detecting the position of the float, etc. No further details will be given here.

[0085] Although the above valve assembly and control assembly have simple structures, they cannot be used in the case of power failure, which increases power consumption and has poor reliability. Figure 6 、 7As shown in , 9 and 10 , the valve assembly includes a valve plate 220 .

[0086] The valve disc 220 is disposed at the water channel and is rotatably connected to the humidification chamber 100. A water outlet hole 221 is correspondingly disposed on the valve disc 220. The water outlet hole 221 is arc-shaped, and the centerline of the water outlet hole 221 coincides with the rotation centerline of the valve disc 220. Furthermore, the angle between the two ends of the water outlet hole 221 and the rotation centerline of the valve disc 220 is equal to 180°. Preferably, the valve disc 220 is circular.

[0087] The control assembly includes a rack 311 , a first gear 312 and a conversion mechanism.

[0088] The rack 311 is fixedly connected to the buoyancy seat 410. The first gear 312 is rotationally connected to the humidification chamber 100 and meshes with the rack 311, so that when the rack 311 moves, it can drive the first gear 312 to rotate. The power input shaft of the conversion mechanism is transmission-connected to the first gear 312, and the power output shaft of the conversion mechanism is transmission-connected to the valve plate 220. The conversion mechanism is used to convert the power transmitted from the first gear 312 into power for rotation in a predetermined direction and transmit it to the valve plate 220. This ensures that both the rise and fall of the buoyancy seat 410 can only drive the valve plate 220 to rotate in the predetermined direction.

[0089] Specifically, during use, when the liquid level in the liquid storage area drops, gravity causes the buoyancy seat 410 to move downward, carrying the rack 311 with it. The rack 311 drives the first gear 312 to rotate in a first direction. The first gear 312, through the conversion mechanism, drives the valve disc 220 to rotate in a predetermined direction, thereby causing the first end of the water outlet hole 221 to align with the water channel, thereby switching the valve assembly from a closed state to an open state. Water in the water storage chamber enters the liquid storage area through the water channel and the water outlet hole 221.

[0090] When the liquid level in the liquid storage area rises, the buoyancy force causes the buoyancy seat 410 to move upward, carrying the rack 311 with it. The rack 311 drives the first gear 312 to rotate in the second direction. The first gear 312, through the conversion mechanism, drives the valve plate 220 to continue rotating in the preset direction, causing the water outlet holes 221 to successively pass through the water channel. Until the second end of the water outlet hole 221 passes through the water channel, the valve plate 220 blocks the water channel, and the valve assembly switches from the open state to the closed state.

[0091] The valve assembly and control assembly provided in this embodiment are completely composed of mechanical structures. Therefore, they can be used without electricity, saving electricity and having high reliability.

[0092] like Figure 6 、 7As shown in , 9 and 10 , the conversion mechanism includes a mounting frame 313 , a second rotating shaft 314 , a second bevel gear 315 , a third bevel gear 316 , a first rotating shaft 317 and a first bevel gear 318 .

[0093] The mounting bracket 313 is fixedly mounted within the humidification chamber 100. A first end of a first rotating shaft 317 is rotatably connected to the mounting bracket 313, while a second end thereof is freely extending. The power output end of the first rotating shaft 317 is in transmission connection with the valve plate 220. A first bevel gear 318 is coaxially sleeved on the second end of the first rotating shaft 317 and in transmission connection with the first rotating shaft 317.

[0094] Both ends of the second rotating shaft 314 are rotatably connected to the mounting bracket 313. A second bevel gear 315 is coaxially sleeved on the second rotating shaft 314 and is transmission-connected to the second rotating shaft 314 via the first one-way transmission structure 301. The second bevel gear 315 is located on a first side of the first bevel gear 318 and meshes with the first bevel gear 318. A third bevel gear 316 is coaxially sleeved on the second rotating shaft 314 and is transmission-connected to the second rotating shaft 314 via the second one-way transmission structure 302. The third bevel gear 316 is located on a second side of the first bevel gear 318 (opposite the first side of the first bevel gear 318) and meshes with the first bevel gear 318.

[0095] The power transmission directions of the first one-way transmission structure 301 and the second one-way transmission structure 302 are opposite. Specifically, the first one-way transmission structure 301 and the second one-way transmission structure 302 are ratchet structures or one-way bearings.

[0096] During use, when the liquid level in the liquid storage area drops, gravity causes the buoyancy seat 410 to move downward, carrying the rack 311 downward with it. The rack 311 drives the first gear 312 to rotate in the first direction, which in turn drives the second rotating shaft 314 to rotate in the first direction. The second rotating shaft 314 drives the second bevel gear 315 to rotate in the first direction via the first one-way transmission structure 301. Because the power transmission direction of the second one-way transmission structure 302 is opposite to that of the first one-way transmission structure 301, the second rotating shaft 314 cannot drive the third bevel gear 316 to rotate in the first direction.

[0097] Since the second bevel gear 315 is located on the first side of the first bevel gear 318 and meshes with the first bevel gear 318, the second bevel gear 315 drives the first bevel gear 318 to rotate in the first direction. Since the third bevel gear 316 is located on the second side of the first bevel gear 318, the first bevel gear 318 drives the third bevel gear 316 to rotate in the second direction.

[0098] Since the third bevel gear 316 is connected to the second rotating shaft 314 through the second one-way transmission structure 302, the second bevel gear 315 is connected to the second rotating shaft 314 through the first one-way transmission structure 301, and the power transmission directions of the first one-way structure and the second one-way structure are opposite, the second rotating shaft 314 can drive the second bevel gear 315 to rotate in the first direction through the first one-way structure. Therefore, the second rotating shaft 314 can only drive the third bevel gear 316 to rotate in the second direction through the second one-way transmission structure 302, and the third bevel gear 316 can only drive the second rotating shaft 314 to rotate in the first reverse direction through the second one-way transmission structure 302. Therefore, when the third bevel gear 316 rotates in the second direction, the third bevel gear 316 cannot transmit power to the second rotating shaft 314, and will not affect the rotation of the second rotating shaft 314.

[0099] At the same time, the first bevel gear 318 drives the first rotating shaft 317 to rotate in the first direction, and the first rotating shaft 317 transmits power to the valve plate 220, thereby driving the valve plate 220 to rotate in a preset direction.

[0100] When the liquid level in the liquid storage area rises, the buoyancy force causes the buoyancy seat 410 to move upward, carrying the rack 311 upward. The rack 311 drives the first gear 312 to rotate in the second direction. The first gear 312 drives the second rotating shaft 314 to rotate in the second direction. The second rotating shaft 314 drives the third bevel gear 316 to rotate in the second direction via the second one-way transmission structure 302. Because the power transmission direction of the first one-way transmission structure 301 is opposite to the power transmission direction of the second one-way transmission structure 302, the second rotating shaft 314 cannot drive the second bevel gear 315 to rotate in the second direction.

[0101] Since the third bevel gear 316 is located on the second side of the first bevel gear 318 and meshes with the first bevel gear 318, the third bevel gear 316 drives the first bevel gear 318 to rotate in the first direction. Since the second bevel gear 315 is located on the first side of the first bevel gear 318, the first bevel gear 318 drives the third bevel gear 316 to rotate in the first direction.

[0102] Since the second rotating shaft 314 can drive the second bevel gear 315 to rotate in the first direction through the first unidirectional structure, the second bevel gear 315 can only drive the second rotating shaft 314 to rotate in the second direction through the first unidirectional transmission structure 301. Therefore, when the second bevel gear 315 rotates in the first direction, the second bevel gear 315 cannot transmit power to the second rotating shaft 314, and will not affect the rotation of the second rotating shaft 314.

[0103] At the same time, the first bevel gear 318 drives the first rotating shaft 317 to rotate in the first direction, and the first rotating shaft 317 transmits power to the valve plate 220, thereby driving the valve plate 220 to rotate in a preset direction.

[0104] The conversion mechanism provided in this embodiment has a simple structure, and regardless of whether the liquid level in the water storage area drops or rises, the valve plate 220 can be driven to rotate in a preset direction through the conversion mechanism, so that the liquid outlet holes on the valve plate 220 circulate corresponding to the water channel, thereby achieving the purpose of controlling the liquid level in the liquid storage area to always be within a preset range.

[0105] In one embodiment, the present invention further provides an oxygen concentrator comprising the humidification device according to any of the above embodiments.

[0106] In the description of the present invention, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. In some instances, well-known methods, structures, and techniques are not shown in detail so as not to obscure the understanding of this description.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A humidifying device, characterized in that: include: The humidification box comprises a liquid storage chamber and a humidification chamber, wherein the liquid storage chamber is provided with a liquid adding port, the humidification chamber comprises a water storage area and a humidification area, and the liquid storage chamber and the liquid storage area are connected via a water channel; a valve assembly disposed at the waterway, which has an open state and a closed state that can be switched between each other, wherein when the valve assembly is in the open state, the waterway is in an unobstructed state, and when the valve assembly is in the closed state, the waterway is in a disconnected state; a control assembly configured to switch the valve assembly from a closed state to an open state when the liquid level in the liquid storage area is less than or equal to a first preset value, and to switch the valve assembly from an open state to a closed state when the liquid level in the liquid storage area is greater than or equal to a second preset value, wherein the first preset value is less than the second preset value; and a humidifying component disposed in the humidifying chamber, the humidifying component being capable of absorbing the humidifying liquid in the humidifying area; The humidification chamber has a first air inlet and a first air outlet, so that the gas to be humidified can enter the humidification chamber and be humidified by the humidification component.

2. The humidifying device according to claim 1, characterized in that The humidification component includes: a buoyancy seat disposed in the humidification area, the buoyancy seat being slidably connected to the humidification box, and having a density less than that of the humidification liquid, so that the buoyancy seat can move as the liquid level of the humidification liquid in the humidification area changes; a humidifying element, which is disposed on top of the buoyancy seat and is capable of absorbing humidifying liquid and transferring the humidifying liquid to the gas to be humidified; and a liquid absorbing element in a cylindrical shape, wherein a first end of the liquid absorbing element is connected to the humidifying element, and a second end thereof passes through the buoyancy seat and extends into the humidifying area, and the liquid absorbing element is used to absorb the humidifying liquid in the humidifying area and transfer the absorbed humidifying liquid to the humidifying element; In which, the buoyancy seat is provided with multiple air channels, the top side wall of the buoyancy seat is provided with a second air outlet corresponding one-to-one to the air channels, the bottom side wall of the buoyancy seat is provided with a second air inlet connected to the air channels, and the second air inlet is connected to the first air inlet.

3. The humidifying device according to claim 2, characterized in that The humidification component also includes: a limiting sleeve, which is hollow and has two open ends, and is disposed outside the humidifying element, wherein the bottom end of the limiting sleeve is fixedly connected to the buoyancy seat; and A guide plate in a conical ring shape, the guide plate is sleeved on the top of the limiting sleeve, and the inner side of the guide plate is lower than the outer side; The liquid storage cavity is annular and is sleeved outside the humidification cavity. A liquid outlet is correspondingly provided on the side wall of the liquid storage cavity, and the liquid outlet is located above the guide plate.

4. The humidifying device according to any one of claims 1 to 3, characterized in that: The valve assembly includes a solenoid valve, and the solenoid valve is arranged at the waterway; The control component includes a detection module and a controller; The detection module and the solenoid valve are electrically connected to the controller, and the detection module is used to detect the liquid level of the humidifying liquid in the liquid storage area and convert the detected information into a corresponding electrical signal and transmit it to the controller; The controller is used to convert the received electrical signal into a corresponding control signal and transmit the control signal to the solenoid valve to control the state of the solenoid valve.

5. The humidifying device according to claim 4, characterized in that The detection module includes a liquid level sensor, which is arranged in the humidification area. The liquid level sensor is used to detect the liquid level of the humidification liquid in the humidification area and convert the detected information into a corresponding electrical signal and transmit it to the controller.

6. The humidifying device according to any one of claims 1 to 3, characterized in that: The valve assembly includes a valve plate, which is arranged at the water channel and is rotatably connected to the humidification box. A water outlet hole is correspondingly provided on the valve plate, and the water outlet hole is arc-shaped. The center line of the water outlet hole coincides with the rotation center line of the valve plate, and the angle between the two ends of the water outlet hole and the rotation center line of the valve plate is equal to °; The control component includes: a rack fixedly connected to the buoyancy seat; a first gear, which is rotatably connected to the humidification box, and the first gear is engaged with the rack, so that when the rack moves, it can drive the first gear to rotate; and A conversion mechanism, whose power input shaft is connected to the first gear and whose power output shaft is connected to the valve plate. The conversion mechanism is used to convert the power transmitted by the first gear into power rotating in a preset direction and transmit it to the valve plate, so that the rising and falling of the buoyancy seat can only drive the valve plate to rotate in the preset direction.

7. The humidifying device according to claim 6, characterized in that The conversion mechanism comprises: A mounting frame, which is fixedly arranged in the humidification box; a first rotating shaft, a first end of which is rotatably connected to the mounting frame and a second end of which is freely extending, and a power output end of the first rotating shaft is transmission-connected to the valve plate; a first bevel gear coaxially sleeved on the first rotating shaft; a second rotating shaft, both ends of which are rotatably connected to the mounting frame, and a power input end of the second rotating shaft is transmission-connected to the first gear; a second bevel gear coaxially sleeved on the second rotating shaft, the second bevel gear and the second rotating shaft being transmission-connected via a first unidirectional rotation structure, the second bevel gear being located on a first side of the first bevel gear and meshing with the first bevel gear; and a third bevel gear, coaxially sleeved on the second rotating shaft, the third bevel gear and the second rotating shaft being transmission-connected via a second unidirectional rotation structure, the third bevel gear being located on a second side of the first bevel gear and meshing with the first bevel gear; Wherein, the power transmission directions of the first one-way transmission structure and the second one-way transmission structure are opposite.

8. The humidifying device according to claim 7, characterized in that The first one-way transmission structure and the second one-way transmission structure are one of ratchet structures or one-way bearings.

9. An oxygen concentrator, characterized in that: The humidifying device comprises the humidifying device according to any one of claims 1 to 8.

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