A portable breathing trainer with nebulizer function

Abstract

This application discloses a portable breathing trainer with nebulization function, relating to the field of medical device technology. It includes: a lower chamber, within which a nebulization chamber and a training chamber are coaxially arranged. The nebulization chamber has a first opening and a first air inlet on its upper and lower sides, respectively. The training chamber is located outside the nebulization chamber, and has a second opening and a second air inlet on its upper and lower sides, respectively. A floating component is disposed within the training chamber, adapted to float vertically within the training chamber. An upper chamber is detachably fixed to the lower chamber, including an upper output section and a lower opener / closer. The output section has an air outlet, within which a one-way valve is disposed. The opener / closer is adapted to adjust the opening and closing states of the first and second openings, thereby switching the air path between the air outlet and the nebulization chamber and the training chamber. The nebulization chamber and the training chamber are coaxially integrated, and the opener / closer allows it to perform both nebulization therapy and breathing training functions.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular discloses a portable breathing trainer with nebulization function. Background Technology

[0002] Respiratory diseases such as chronic obstructive pulmonary disease (COPD), asthma, and bronchitis can not only lead to airway ventilation dysfunction, but also cause a decline in the function of respiratory muscles, especially the diaphragm and intercostal muscles, which further aggravates breathing difficulties and gas exchange disorders.

[0003] Current clinical strategies mainly include two types of approaches: drug therapy and respiratory rehabilitation training. Drug therapy often relies on nebulized inhalation to deliver drugs locally and relieve airway spasm and inflammation. Respiratory rehabilitation, on the other hand, enhances respiratory muscle function and improves lung volume and ventilation efficiency through resistance training.

[0004] However, existing medical devices are significantly inadequate in supporting the synergistic function of the two types of devices mentioned above. While existing nebulizers can provide effective drug inhalation therapy, their airway structure is usually in a passive inhalation mode, which cannot provide controllable breathing resistance, preventing patients from effectively training their breathing resistance through nebulizers. Traditional breathing trainers, while able to exercise respiratory muscles, do not have the function of nebulized drug delivery. In short, existing devices can only perform a single function. Therefore, in order to coordinate drug therapy and respiratory rehabilitation training, patients need to use two types of devices alternately, which is cumbersome to operate and inconvenient to carry. In addition, cleaning and disinfecting both sets of devices after use is quite troublesome, so improvements are needed. Utility Model Content

[0005] The purpose of this application is to provide a portable breathing trainer with atomization function.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows: a portable breathing trainer with nebulization function, comprising: a lower chamber, wherein a nebulization chamber and a training chamber are coaxially arranged in the lower chamber, a first opening and a first air inlet are respectively provided on the upper and lower sides of the nebulization chamber, the training chamber is located outside the nebulization chamber, a second opening and a second air inlet are respectively provided on the upper and lower sides of the training chamber, and a floating component is provided in the training chamber, the floating component being adapted to float in the vertical direction within the training chamber; an upper chamber, wherein the upper chamber is detachably fixedly arranged on the lower chamber, the upper chamber including an output section located at the upper part and an opener / closer located at the lower part, the output section being provided with an air outlet, a one-way valve being provided in the air outlet, and the opener / closer being adapted to adjust the opening and closing states of the first opening and the second opening, thereby switching the air path between the air outlet and the nebulization chamber and the training chamber.

[0007] As a preferred embodiment, the opening and closing device includes a sealing part and a rotating part. The rotating part is rotatably disposed within the upper compartment, and the sealing part is disposed below the rotating part. The sealing part includes a fixed plate, a first sealing element, a second sealing element, and an elastic element. The first sealing element and the second sealing element are both slidably disposed on the fixed plate in the vertical direction. The first sealing element and the second sealing element are both connected to the fixed plate through the elastic element. The rotating part includes a first cam and a second cam that are relatively stationary. The first cam is adapted to control the vertical movement of the first sealing element by horizontal rotation, thereby causing it to tightly abut against or disengage from the first opening. The second cam is adapted to control the vertical movement of the second sealing element by horizontal rotation, thereby causing it to tightly abut against or disengage from the second opening.

[0008] In a further preferred embodiment, a first guide post is fixedly disposed on the upper side of the first seal, the first guide post passing through the fixed plate. The lower side of the first cam is a first working surface with continuous recesses and protrusions. The upper end of the first guide post abuts against the first working surface. When the first cam rotates horizontally, the recesses and protrusions on the first working surface, in conjunction with the elastic element, force the first guide post to slide in the vertical direction, thereby driving the first seal to move up and down. When the recess on the first working surface abuts against the first guide post, the first seal disengages from the first opening. When the protrusion on the first working surface abuts against the first guide post, the first seal tightly abuts against the first... An opening; a second guide post is fixedly provided on the upper side of the second seal, the second guide post passes through the fixed plate, the lower side of the second cam is a second working surface with continuous recesses and protrusions, the upper end of the second guide post abuts against the second working surface, when the second cam rotates horizontally, the recesses and protrusions on the second working surface cooperate with the elastic element to force the second guide post to slide in the up and down direction, thereby driving the second seal to move up and down, when the recess on the second working surface abuts against the second guide post, the second seal disengages from the second opening, when the protrusion on the second working surface abuts against the second guide post, the second seal tightly abuts against the second opening.

[0009] Further preferably, the recesses and protrusions on the first working surface and the recesses and protrusions on the second working surface have four mating configurations in the radial direction: Mating configuration one is that in one radial direction, both the first working surface and the second working surface are set as protrusions; Mating configuration two is that in another radial direction, the first working surface is set as a recess and the second working surface is set as a protrusion; Mating configuration three is that in another radial direction, the first working surface is set as a protrusion and the second working surface is set as a recess; Mating configuration four is that in another radial direction, both the first working surface and the second working surface are set as recesses.

[0010] Further preferably, when the rotating part rotates, the first cam and the second cam rotate around the same axis at the same angular velocity. During the rotation, four engagement modes allow the sealing part and the lower chamber to have four states: State 1 is a closed state where the first seal tightly abuts against the first opening and the second seal tightly abuts against the second opening; State 2 is an atomized state where the first seal is disengaged from the first opening and the second seal tightly abuts against the second opening; State 3 is a training state where the first seal tightly abuts against the first opening and the second seal is disengaged from the second opening; State 4 is a mixed state where the first seal is disengaged from the first opening and the second seal is disengaged from the second opening.

[0011] Further preferably, the upper compartment sidewall is provided with a sliding groove, and the rotating part sidewall is provided with a protrusion. When the rotating part rotates, the protrusion is adapted to slide along the sliding groove. A four-positioning mechanism is provided between the protrusion and the sliding groove. The four-positioning mechanism includes a selector on the protrusion and four positioning elements embedded in the sliding groove. During the rotation of the rotating part, the selector connects to one of the positioning elements, thereby locking the sealing part and the lower compartment in one of four states.

[0012] In a further preferred embodiment, the selector is a first magnetic attractor, the positioning member is a second magnetic attractor, and during the rotation of the rotating part, the first magnetic attractor is selectively magnetically coupled to one of the second magnetic attractors.

[0013] In a further preferred embodiment, the selector is a limiting protrusion, and the positioning element is a limiting recess adapted to the limiting protrusion. During the rotation of the rotating part, the limiting protrusion selectively engages with one of the limiting recesses.

[0014] Further preferably, the protrusion is provided with a number of anti-slip protrusions.

[0015] As a preferred embodiment, the training cavity is an annular cavity, the floating component is a hollow floating ring, a retaining ring is provided at the upper end of the training cavity, and the floating component is adapted to float up and down between the retaining ring and the bottom surface of the training cavity.

[0016] As a preferred embodiment, a retaining ring is provided at the upper end of the training cavity, and several vertical baffles are arranged in a circular array inside the training cavity, which divides the training cavity into several floating cavities. The floating component is a hollow float, which is adapted to float up and down between the retaining ring and the bottom surface of the floating cavity.

[0017] As a preferred embodiment, the upper compartment and the lower compartment are connected by threads or snap fasteners.

[0018] Compared with the prior art, the beneficial effects of this application are as follows:

[0019] (1) Functional integration of treatment and rehabilitation training: This application integrates the nebulization chamber and the training chamber coaxially in the lower chamber and switches them through the opening and closing device of the upper chamber, realizing that a portable device has the functions of drug nebulization inhalation and respiratory muscle strength training. Compared with the existing devices that can only achieve a single function and patients need to carry two sets of devices, this application effectively solves the problem. Patients only need to carry one device to achieve nebulization treatment and / or respiratory training.

[0020] (2) Compact structure, easy to carry and use: The training chamber is surrounded by the atomizing chamber through a coaxial design, which makes full use of the space, making the equipment compact and small in size. The detachable connection between the upper and lower chambers is convenient for carrying and also facilitates internal cleaning and disinfection after use. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0022] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 3 This is a three-dimensional structural cross-sectional view of the present invention.

[0024] Figure 4 This is a three-dimensional structural cross-sectional view of the present invention.

[0025] Figure 5 This is a three-dimensional structural diagram of the upper compartment of this utility model without a rotating part.

[0026] Figure 6 This is a three-dimensional cross-sectional view of the upper compartment of this utility model without a rotating part.

[0027] Figure 7 This is a three-dimensional structural diagram of the rotating part of this utility model.

[0028] Figure 8 This is a three-dimensional structural diagram of the rotating part of this utility model.

[0029] In the diagram: 1. Upper chamber; 11. Output section; 111. Air outlet; 112. One-way valve; 12. Opener / closer; 121. Sealing section; 1211. Fixing plate; 1212. First seal; 1213. Second seal; 1214. Elastic element; 1215. First guide post; 1216. Second guide post; 122. Rotating section; 1221. First cam; 12211. First working surface; 12 22. Second cam; 12221. Second working surface; 1223. Slide groove; 12231. Gear selector; 1224. Protrusion; 12241. Anti-slip protrusion; 12242. Positioning component; 2. Lower chamber; 21. Atomizing chamber; 211. First opening; 212. First air inlet; 22. Training chamber; 221. Second opening; 222. Second air inlet; 223. Floating component; 224. Retaining ring. Detailed Implementation

[0030] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0032] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0033] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0034] A preferred embodiment of this application, such as Figures 1 to 8As shown, a portable breathing trainer with nebulization function includes: a lower chamber 2, in which a nebulization chamber 21 and a training chamber 22 are coaxially arranged; the nebulization chamber 21 has a first opening 211 and a first air inlet 212 on its upper and lower sides, respectively; the training chamber 22 is located outside the nebulization chamber 21, and has a second opening 221 and a second air inlet 222 on its upper and lower sides, respectively; a floating component 223 is provided inside the training chamber 22, which is adapted to float vertically within the training chamber 22; and an upper chamber 1, which is detachable. The upper chamber 1 and the lower chamber 2 are fixedly mounted on the ground. The upper chamber 1 and the lower chamber 2 can be connected by threads or snaps. The upper chamber 1 includes an output part 11 located at the top and an opener / closer 12 located at the bottom. The output part 11 is provided with an air outlet 111. A one-way valve 112 (the one-way valve 112 is existing technology and is shown in the figure as a schematic representation, replaced by a cylinder) is provided in the air outlet 111. The opener / closer 12 is adapted to adjust the opening and closing state of the first opening 211 and the second opening 221, thereby switching the air path between the air outlet 111 and the atomizing chamber 21 and the training chamber 22.

[0035] This application integrates the nebulization chamber 21 and the training chamber 22 coaxially in the lower chamber 2, and switches them through the opener 12 of the upper chamber 1. This enables a portable device to have the functions of drug nebulization inhalation and respiratory muscle training. Compared with the limitations of existing devices that can only achieve a single function and require patients to carry two sets of devices, this application effectively solves the problem. Patients only need to carry one device to achieve nebulization therapy and / or respiratory training.

[0036] The opener / closer 12 is used to adjust the opening and closing states of the first opening 211 and the second opening 221, which is equivalent to the function or mode selection of the device. Different functions are achieved by adjusting the internal air path. In this embodiment, three modes are provided: pure nebulization mode, pure breathing training mode, and a mixed mode that combines nebulization and breathing training. Mode selection is achieved through the opener / closer 12. In this embodiment, a specific structure of the opener / closer 12 is given as follows: Figures 5 to 8As shown, the opening and closing device 12 includes a sealing part 121 and a rotating part 122. The rotating part 122 is rotatably disposed in the upper compartment 1, and the sealing part 121 is disposed below the rotating part 122. The sealing part 121 includes a fixed plate 1211, a first sealing element 1212, a second sealing element 1213, and an elastic element 1214. The first sealing element 1212 and the second sealing element 1213 are both slidably disposed on the fixed plate 1211 in the vertical direction. The first sealing element 1212 and the second sealing element 1213 are both connected to the fixed plate 1211 through the elastic element 1214. The rotating part 122 includes a first cam 1221 and a second cam 1222 that are relatively stationary. The first cam 1221 is adapted to control the first sealing element 1212 to move up and down by rotating horizontally, so that it tightly abuts against or disengages from the first opening 211. The second cam 1222 is adapted to control the second sealing element 1213 to move up and down by rotating horizontally, so that it tightly abuts against or disengages from the second opening 221.

[0037] It is clear that the core components of the opener / closer 12 are the first cam 1221 and the second cam 1222, both of which are configured as end-face cams. This allows their horizontal rotation to be converted into the up-and-down movement of the first seal 1212 and the second seal 1213. To more smoothly achieve the cam's drive of the seals, in this application, a first guide post 1215 is further fixedly mounted on the upper side of the first seal 1212. The first guide post 1215 passes through the fixed plate 1211, and the lower... The side has a first working surface 12211 with continuous recesses and protrusions. The upper end of the first guide post 1215 abuts against the first working surface 12211. When the first cam 1221 rotates horizontally, the recesses and protrusions on the first working surface 12211, together with the elastic element 1214, force the first guide post 1215 to slide in the vertical direction, thereby driving the first seal 1212 to move up and down. When the recess on the first working surface 12211 abuts against the first guide post 1215, the first seal 1212 disengages. The first opening 211, when the protrusion on the first working surface 12211 abuts against the first guide post 1215, the first sealing member 1212 tightly abuts against the first opening 211; the second sealing member 1213 has a second guide post 1216 fixedly installed on its upper side, the second guide post 1216 passes through the fixed plate 1211, the lower side of the second cam 1222 is a second working surface 12221 with continuous recesses and protrusions, the upper end of the second guide post 1216 abuts against the second working surface 12221, the second cam 12... When the second working surface 12221 rotates horizontally, the recess and protrusion on the second working surface 12221, together with the elastic element 1214, force the second guide post 1216 to slide in the vertical direction, thereby driving the second seal 1213 to move up and down. When the recess on the second working surface 12221 abuts against the second guide post 1216, the second seal 1213 disengages from the second opening 221. When the protrusion on the second working surface 12221 abuts against the second guide post 1216, the second seal 1213 tightly abuts against the second opening 221.

[0038] In the above technical solution, the upper end of the first guide post 1215 abuts against the first working surface 12211 of the first cam 1221, and the upper end of the second guide post 1216 abuts against the second working surface 12221 of the second cam 1222. Since the first cam 1221 and the second cam 1222 rotate horizontally, the upper ends of the first guide post 1215 and the second guide post 1216 are set as hemispherical surfaces to reduce friction in order to ensure smooth operation. Alternatively, rollers or balls can be set on their upper ends. The specific structure can be selected by those skilled in the art according to the actual situation.

[0039] It is understood that at any given moment, the elastic element 1214 is in a stretched state. In this embodiment, the elastic element 1214 can be selected as a spring. When the seal is in the highest position, that is, when the guide post and the recess of the cam are engaged, the spring is stretched to its shortest length. When the seal is in the lowest position, that is, when the guide post and the protrusion of the cam are engaged, the spring is stretched to its longest length.

[0040] To ensure the sealing performance and strength of the first seal 1212 and the second seal 1213, they can be divided into a hard layer with greater strength and an elastic sealing layer disposed on the lower side of the hard layer. The guide post is disposed on the upper side of the hard layer. This can ensure both the rigidity of the seal when the cam applies pressure and the sealing when it comes into contact with the opening.

[0041] To accommodate the atomizing chamber 21 and the training chamber 22, the first opening 211 can be a circular opening and the second opening 221 can be an annular opening. Correspondingly, the first sealing element 1212 is a circular sealing element and the second sealing element 1213 is an annular sealing element, which are coaxially arranged with the first sealing element 1212. Correspondingly, the first cam 1221 is a circular end face cam and the second cam 1222 is an annular end face cam, thereby achieving adaptation.

[0042] It is understandable that in order to achieve a gas passage, a connecting hole is required between the output part 11 and the lower chamber 2. Therefore, a connecting hole needs to be provided on the fixed plate 1211, and a connecting hole also needs to be provided on the rotating part 122. This technical solution is a conventional design and will not be elaborated further.

[0043] In this embodiment, the recesses and protrusions on the first working surface 12211 and the recesses and protrusions on the second working surface 12221 have four mating configurations in the radial direction: Mating configuration one is that in one radial direction, both the first working surface 12211 and the second working surface 12221 are set as protrusions; Mating configuration two is that in another radial direction, the first working surface 12211 is set as a recess and the second working surface 12221 is set as a protrusion; Mating configuration three is that in another radial direction, the first working surface 12211 is set as a protrusion and the second working surface 12221 is set as a recess; Mating configuration four is that in another radial direction, both the first working surface 12211 and the second working surface 12221 are set as recesses.

[0044] When the rotating part 122 rotates, the first cam 1221 and the second cam 1222 rotate around the same axis at the same angular velocity. During the rotation, the sealing part 121 and the lower chamber 2 are in four states through four engagement modes: State 1 is the closed state where the first seal 1212 is tightly abutting against the first opening 211 and the second seal 1213 is tightly abutting against the second opening 221; State 2 is the atomized state where the first seal 1212 is disengaged from the first opening 211 and the second seal 1213 is tightly abutting against the second opening 221; State 3 is the training state where the first seal 1212 is tightly abutting against the first opening 211 and the second seal 1213 is disengaged from the second opening 221; State 4 is the mixed state where the first seal 1212 is disengaged from the first opening 211 and the second seal 1213 is disengaged from the second opening 221.

[0045] By designing the protrusions and recesses on the first cam 1221 and the second cam 1222, it can have four states, corresponding to the three modes mentioned above and the off mode when not in use. Of course, some products may only need the pure atomization mode and the pure breathing training mode. Those skilled in the art can adjust the matching shape of the protrusions and recesses on the first cam 1221 and the second cam 1222 according to the design concept of this application.

[0046] When in use, connect the mouthpiece to the air outlet 111. In the atomization state, the air path is: first air inlet 212 → atomization chamber 21 → first opening 211 → opener 12 → output section 11 → air outlet 111. In the training state, the inhalation air path is: second air inlet 222 → training chamber 22 → second opening 221 → opener 12 → output section 11 → air outlet 111. When exhaling, you can leave the mouthpiece and exhale directly into the air, or you can set another one-way valve on the air outlet 111 to open to the atmosphere, so that you do not need to leave the mouthpiece.

[0047] To provide clear feedback to users when selecting a mode, the following settings can be implemented: A groove 1223 is provided on the side wall of the upper compartment 1, and a protrusion 1224 is provided on the side wall of the rotating part 122. Several anti-slip protrusions 12241 are provided on the protrusion 1224. When the rotating part 122 rotates, the protrusion 1224 is adapted to slide along the groove 1223. A four-positioning mechanism is provided between the protrusion 1224 and the groove 1223. The four-positioning mechanism includes a selector element 1 provided on the protrusion 1224. 2231 and four positioning members 12242 embedded in the slide groove 1223. During the rotation of the rotating part 122, the selector 12231 connects with one of the positioning members 12242, thereby locking the sealing part 121 and the lower compartment 2 in one of four states. The cooperation between the selector 12231 and the positioning member 12242 provides clear feedback. It can also be combined with the text or graphic indication printed or pasted on the edge of the slide groove 1223 to make the user clearly understand the currently selected mode.

[0048] In one embodiment, the selector 12231 is a first magnetic attractor and the positioning member 12242 is a second magnetic attractor. During the rotation of the rotating part 122, the first magnetic attractor is selectively magnetically coupled to one of the second magnetic attractors.

[0049] In another embodiment, the selector 12231 is a limiting protrusion, and the positioning member 12242 is a limiting recess adapted to the limiting protrusion. During the rotation of the rotating part 122, the limiting protrusion selectively engages with one of the limiting recesses.

[0050] In this embodiment, the training cavity 22 is an annular cavity, the floating member 223 is a hollow floating ring, and a retaining ring 224 is provided at the upper end of the training cavity 22. The floating member 223 is adapted to float up and down between the retaining ring 224 and the bottom surface of the training cavity 22.

[0051] In this embodiment, a retaining ring 224 is provided at the upper end of the training cavity 22, and several vertical baffles are arranged in a circular array inside the training cavity 22. The baffles divide the training cavity 22 into several floating cavities. The floating component 223 is a hollow float, which is suitable for floating up and down between the retaining ring 224 and the bottom surface of the floating cavity.

[0052] To more clearly demonstrate whether the breathing training is in place, the side wall of the training chamber 22 can be made transparent, and color markers of different heights can be set on the side wall, such as green, yellow, and red from top to bottom. When the floating component 223 floats up to the green area, the training is in place.

[0053] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A portable breathing trainer with nebulization function, characterized in that, include: The lower chamber is coaxially provided with an atomizing chamber and a training chamber. The atomizing chamber has a first opening and a first air inlet on its upper and lower sides, respectively. The training chamber is located outside the atomizing chamber. The training chamber has a second opening and a second air inlet on its upper and lower sides, respectively. A floating component is provided inside the training chamber. The floating component is adapted to float in the vertical direction within the training chamber. The upper chamber is detachably fixed on the lower chamber. The upper chamber includes an output section located at the top and an opener / closer located at the bottom. The output section is provided with an air outlet, and a one-way valve is provided inside the air outlet. The opener / closer is adapted to adjust the opening and closing states of the first opening and the second opening, thereby switching the air path between the air outlet and the atomizing chamber and the training chamber.

2. A portable breathing trainer with nebulization function as described in claim 1, characterized in that, The opening and closing device includes a sealing part and a rotating part. The rotating part is rotatably disposed in the upper compartment, and the sealing part is disposed below the rotating part. The sealing part includes a fixed plate, a first sealing element, a second sealing element, and an elastic element. The first sealing element and the second sealing element are both slidably disposed on the fixed plate in the vertical direction. The first sealing element and the second sealing element are both connected to the fixed plate through the elastic element. The rotating part includes a first cam and a second cam that are relatively stationary. The first cam is adapted to control the vertical movement of the first sealing element by horizontal rotation, so that it tightly abuts against or disengages from the first opening. The second cam is adapted to control the vertical movement of the second sealing element by horizontal rotation, so that it tightly abuts against or disengages from the second opening.

3. A portable breathing trainer with nebulization function as described in claim 2, characterized in that, A first guide post is fixedly disposed on the upper side of the first seal. The first guide post passes through the fixed plate. The lower side of the first cam is a first working surface with continuous recesses and protrusions. The upper end of the first guide post abuts against the first working surface. When the first cam rotates horizontally, the recesses and protrusions on the first working surface, together with the elastic element, force the first guide post to slide in the up-down direction, thereby driving the first seal to move up and down. When the recess on the first working surface abuts against the first guide post, the first seal disengages from the first opening. When the protrusion on the first working surface abuts against the first guide post, the first seal tightly abuts against the first opening. A second guide post is fixedly provided on the upper side of the second seal. The second guide post passes through the fixed plate. The lower side of the second cam is a second working surface with continuous recesses and protrusions. The upper end of the second guide post abuts against the second working surface. When the second cam rotates horizontally, the recesses and protrusions on the second working surface, together with the elastic element, force the second guide post to slide in the vertical direction, thereby driving the second seal to move up and down. When the recess on the second working surface abuts against the second guide post, the second seal disengages from the second opening. When the protrusion on the second working surface abuts against the second guide post, the second seal tightly abuts against the second opening.

4. A portable breathing trainer with nebulization function as described in claim 3, characterized in that, The recesses and protrusions on the first working surface and the recesses and protrusions on the second working surface have four matching forms in the radial direction: Matching form one is that in one radial direction, both the first working surface and the second working surface are set as protrusions; Matching form two is that in another radial direction, the first working surface is set as a recess and the second working surface is set as a protrusion. In the third configuration, the first working surface is set as a protrusion and the second working surface is set as a depression in another radial direction; The fourth type of mating configuration is that, in another radial direction, both the first working surface and the second working surface are set to be recessed.

5. A portable breathing trainer with nebulization function as described in claim 4, characterized in that, When the rotating part rotates, the first cam and the second cam rotate around the same axis at the same angular velocity. During the rotation, the sealing part and the lower chamber are in four states through four engagement modes: State 1 is a closed state where the first seal tightly abuts against the first opening and the second seal tightly abuts against the second opening; State 2 is an atomized state where the first seal is disengaged from the first opening and the second seal tightly abuts against the second opening; State 3 is a training state where the first seal tightly abuts against the first opening and the second seal is disengaged from the second opening; State 4 is a mixed state where the first seal is disengaged from the first opening and the second seal is disengaged from the second opening.

6. A portable breathing trainer with nebulization function as described in claim 5, characterized in that, The upper compartment sidewall is provided with a sliding groove, and the rotating part sidewall is provided with a protrusion. When the rotating part rotates, the protrusion is adapted to slide along the sliding groove. A four-positioning mechanism is provided between the protrusion and the sliding groove. The four-positioning mechanism includes a selector on the protrusion and four positioning elements embedded in the sliding groove. During the rotation of the rotating part, the selector connects to one of the positioning elements, thereby locking the sealing part and the lower compartment in one of four states.

7. A portable breathing trainer with nebulization function as described in claim 6, characterized in that, The selector is a first magnetic attractor, and the positioning member is a second magnetic attractor. During the rotation of the rotating part, the first magnetic attractor is selectively magnetically coupled to one of the second magnetic attractors.

8. A portable breathing trainer with nebulization function as described in claim 6, characterized in that, The selector is a limiting protrusion, and the positioning component is a limiting recess that matches the limiting protrusion. During the rotation of the rotating part, the limiting protrusion selectively engages with one of the limiting recesses.

9. A portable breathing trainer with nebulization function as described in claim 1, characterized in that, The training cavity is an annular cavity, the floating component is a hollow floating ring, a retaining ring is provided at the upper end of the training cavity, and the floating component is adapted to float up and down between the retaining ring and the bottom surface of the training cavity.

10. A portable breathing trainer with nebulization function as described in claim 1, characterized in that, The upper end of the training cavity is provided with a retaining ring, and several vertical baffles are arranged in a circular array inside the training cavity. The baffles divide the training cavity into several floating cavities. The floating component is a hollow float, which is adapted to float up and down between the retaining ring and the bottom surface of the floating cavity.

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