Airflow regulating device, atomizing cup and atomizing device using the same

Abstract

The present invention relates to an airflow regulating device and an atomizing cup and an atomizing device using the same, belonging to the field of medical devices. The airflow regulating device includes an elastic element and an airflow regulating valve. The airflow regulating valve can slide in the airflow channel through the elastic force of the elastic element and the thrust of the airflow to adjust the size of the air intake cross section in the airflow channel. The inner cavity of the airflow nozzle of the atomizing cup is provided with the above-mentioned airflow regulating device, which is used to adjust the airflow size of the compressed air involved in the atomization process to ensure the stability of the atomization effect. The atomizing cup can be used in conjunction with a compressed air tank, does not rely on an air compressor, is easy to carry, simple to operate, and is convenient for patients to perform atomization treatment anytime and anywhere.

Description

Technical Field

[0001] The invention belongs to the field of medical devices, and in particular relates to an airflow regulating device and an atomizing cup and an atomizing device using the same. Background Art

[0002] Nebulizer inhalation therapy is an important and effective treatment method for respiratory diseases. The drug solution is passed through a nebulizer and turned into mist particles, which are suspended in the gas. As the patient breathes naturally, the mist particles are inhaled through the mouth and nose and enter the respiratory tract and lungs and are deposited, thereby achieving the purpose of respiratory tract humidification or drug treatment.

[0003] Compressed air atomizer is a type of atomizer, which has the advantages of convenience, painlessness, significant efficacy, and few drug side effects. Most of the compressed air atomizers on the market currently use a compressor to compress the air into a strong airflow that is sprayed out from the jet port to impact the liquid in the medicine cup, vaporize the medicine, and then spray it out from the mist outlet for inhalation by the mouth and nose. Since the medicine mist particles are fine, it is easy to penetrate into the lungs and capillaries through breathing, and the dosage is small, which is suitable for direct absorption by the human body. However, since it needs to be used in conjunction with an air compressor, the restriction on the treatment environment brings inconvenience to patients, especially when patients are in an emergency outdoors, it is difficult to get timely and effective treatment.

[0004] In addition, the nebulizer cup is an important part of the compressed air nebulizer device. The liquid in the nebulizer cup is hit by compressed air to form an aerosol, which is finally discharged from the mist outlet. During the nebulization process, the size of the compressed air is an important factor affecting the nebulization effect. At present, the size of the compressed air is basically adjusted by the air compressor. When the air compressor pressure adjustment is inaccurate, or the patient does not use it correctly or is outdoors and cannot use the air compressor, the nebulizer cups circulating on the market do not have the function of assisting in adjusting the size of the compressed air flow, which ultimately affects the nebulization effect and leads to poor treatment results. Summary of the invention

[0005] To solve the above problems, the present invention provides an airflow regulating device, which includes an airflow channel and an airflow regulating valve, a first stopper and an elastic element located in the airflow channel. The middle of the airflow regulating valve is hollow for airflow to pass through, and there is a gap between the outer side of the airflow regulating valve and the inner cavity of the airflow channel and the valve can slide in the inner cavity. When it is in contact with the first stopper downstream, the gap can be closed without blocking the hollow. Under the elastic force of the elastic element, the airflow regulating valve moves away from the first stopper to open the gap, and can overcome the elastic force and be in contact with the first stopper under the push of the airflow.

[0006] Furthermore, the elastic element is a spring that runs through the upstream and downstream of the first stopper, one end of which is fixed to the inner cavity of the airflow channel downstream of the first stopper, and the other end of which is fixed to the airflow regulating valve upstream of the first stopper.

[0007] Furthermore, a second stopper is provided in the airflow passage upstream of the airflow regulating valve within the action range of the spring force, and the airflow regulating valve does not close the gap or block the hollow after contacting the second stopper.

[0008] Preferably, a second stopper is provided in the airflow passage upstream of the airflow regulating valve, one end of the elastic element is fixed to the second stopper, and the other end is fixed to the airflow regulating valve.

[0009] At the same time, the present invention also provides an atomizer cup, which includes the airflow regulating device as described above, which specifically includes an upper cup shell and a lower cup shell, the upper cup shell and the lower cup shell are detachably connected, the bottom of the lower cup shell is a liquid storage tank, the liquid storage tank is provided with an airflow nozzle upward, the lower part of the airflow nozzle penetrates the bottom wall of the liquid storage tank to form an airflow channel with a conical inner cavity, the outer wall of the airflow nozzle is covered with a cover shell, the inner wall of the cover shell and the outer wall of the airflow nozzle form a liquid suction extending from the liquid storage tank to the top of the airflow nozzle The air flow regulating valve is provided with a first stopper and an elastic element in the inner cavity of the air flow nozzle; the middle of the air flow regulating valve is hollow for air flow to pass through; there is a gap between the outer side of the air flow regulating valve and the inner cavity of the air flow channel and the valve can slide in the inner cavity; when the valve is fitted with the first stopper downstream, the gap can be closed but the hollow can not be blocked; the air flow regulating valve moves away from the first stopper to open the gap under the elastic force of the elastic element, and can overcome the elastic force and fit with the first stopper under the push of the air flow.

[0010] Furthermore, the elastic element is a spring that runs through the upstream and downstream of the first stopper, one end of which is fixed to the inner cavity of the airflow channel downstream of the first stopper, and the other end of which is fixed to the airflow regulating valve upstream of the first stopper.

[0011] Preferably, a second stopper is further provided upstream of the airflow regulating valve within the elastic force action range of the elastic element, and the airflow regulating valve does not close the gap or block the hollow after contacting the second stopper under the action of the elastic force.

[0012] In one embodiment of the present invention, a second stopper is provided in the airflow passage upstream of the airflow regulating valve, one end of the elastic element is fixed to the second stopper, and the other end is fixed to the airflow regulating valve.

[0013] In another embodiment of the present invention, the outer side of the airflow regulating valve is in a frustum or annular shape adapted to the conical inner cavity of the airflow channel, and the conical inner cavity body of the airflow channel constitutes the first stopper.

[0014] In another embodiment of the present invention, the airflow regulating valve is a cylindrical structure, and the conical inner cavity of the airflow channel forms a tubular structure at the entrance whose inner diameter is slightly larger than the outer diameter of the cylindrical airflow regulating valve, and the upper end of the tubular structure bulges toward the middle to form a first circular stopper, and the inner diameter of the first circular stopper is smaller than the outer diameter of the cylindrical airflow regulating valve.

[0015] In addition, the present invention also provides an atomization device, which includes any one of the above-mentioned atomization cups and a compressed air tank matching the atomization cup, and the atomization cup is detachably connected to the compressed air tank.

[0016] Furthermore, the compressed air tank comprises a valve core, and the lower end of the air flow nozzle of the atomizing cup is sealedly connected to the valve core of the compressed air tank.

[0017] Preferably, the atomizer cup and the compressed air tank are connected by a snap-fit ​​connection.

[0018] The airflow regulating device provided by the present invention can automatically adjust the airflow flow rate by changing the position of the airflow regulating valve in the airflow channel, thereby changing the cross-sectional size of the airflow channel; the present invention also applies the above-mentioned airflow regulating device to the airflow nozzle of the nebulizer cup, thereby assisting in adjusting the compressed air flow entering the nebulizer cup. In addition, the present invention also provides an atomizer device, which is composed of the above-mentioned nebulizer cup and a compressed air tank. The atomizer device does not rely on an air compressor, but is instead provided with compressed air by a compressed air tank. The nebulizer cup assists in adjusting the size of the compressed air flow rate to atomize the liquid medicine in the liquid storage tank. The atomizer device is simple to operate, easy to carry, and convenient for patients to use.

[0019] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to better understand the present invention, the present invention is described in detail below with the help of the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention, and for those skilled in the art, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0021] Figure 1 Shown is a three-dimensional view of an atomizer cup disclosed in the present invention;

[0022] Figure 2 Displayed Figure 1 A cross-sectional view of the atomizer cup shown;

[0023] Figure 3 Displayed Figure 2 A partial enlarged view of the airflow regulating device in the cross-sectional view shown;

[0024] Figure 4 Shown is Figure 3 Another partial enlarged view of the cross-sectional view with a different cutting angle;

[0025] Figure 5 Shown is a cross-sectional view of an atomization device disclosed in the present invention in an unmounted state;

[0026] Figure 6 Shown is a cross-sectional view of an atomizing device disclosed in the present invention in use when the pressure is relatively high;

[0027] Figure 7 Displayed Figure 6 A partial enlarged view of the cross-sectional view of the atomizing device shown;

[0028] Figure 8 Shown is a cross-sectional view of an atomization device disclosed in the present invention when in use and at a relatively low pressure. DETAILED DESCRIPTION

[0029] The following is a detailed description of the specific implementation methods, but the implementation methods of the present invention are not limited thereto. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides an air flow regulating device, such as Figure 3 As shown, it includes an airflow channel and an airflow regulating valve 19, a first stopper 191 and an elastic element 18 located in the airflow channel. The middle of the airflow regulating valve 19 is a hollow 193 for airflow to pass through. There is a gap 194 between the outer side and the inner cavity of the airflow channel and the valve can slide in the inner cavity. When it is in contact with the first stopper 191 downstream, the gap 194 can be closed without blocking the hollow 193. Under the elastic force of the elastic element 18, the airflow regulating valve 19 moves away from the first stopper 191 to open the gap 194, and can overcome the elastic force and be in contact with the first stopper 191 under the push of the airflow.

[0031] In this embodiment, if Figure 3As shown, the airflow regulating device includes an airflow channel and an airflow regulating valve 19, a first stopper 191 and an elastic element 18 located in the airflow channel. The airflow regulating valve 19 has a hollow 193 in the middle for airflow to pass through, and there is a gap 194 between the outer side and the inner cavity of the airflow channel for airflow to pass through and can slide in the inner cavity. The first stopper 191 is located downstream of the airflow regulating valve 19. When the airflow regulating valve 19 fits with the first stopper 191, the gap 194 can be closed but the hollow 193 is not blocked. The elastic element 18 is connected to the airflow regulating valve 19 and gives the airflow regulating valve 19 an elastic force opposite to the airflow direction. When no gas passes through the airflow channel or the gas flow rate is low, the elastic force of the elastic element 18 on the airflow regulating valve 19 dominates, and the airflow regulating valve 19 is away from the first stopper 191. At this time, the gas can pass through the hollow 193 in the middle of the airflow regulating valve 19 and the gap 194 between it and the airflow channel. When the gas flow rate is high, the pushing effect of the airflow on the airflow regulating valve 19 is dominant, the elastic element 18 is in a compressed state, the airflow regulating valve 19 abuts against the first stopper 191 and closes the gap 194. At this time, the gas can only pass through the hollow 193 in the middle of the airflow regulating valve 19.

[0032] Furthermore, if Figure 2-4 As shown, the elastic element 18 is a spring that runs through the upstream and downstream of the first stopper 191, one end of which is fixed to the inner cavity of the air flow channel downstream of the first stopper 191, and the other end is fixed to the air flow regulating valve 19 upstream of the first stopper 191.

[0033] In this embodiment, if Figure 2-4 As shown, the elastic element 18 is a spring, which is located downstream of the airflow regulating valve 19, the first stopper 191 is located between the elastic element 18 and the airflow regulating valve 19, one end of the elastic element 18 is fixed to the inner cavity of the airflow channel downstream of the first stopper 191, and the other end is fixed to the airflow regulating valve 19. Under the action of the elastic force of the elastic element 18 and the thrust of the airflow, the airflow regulating valve 19 and the first stopper 191 move relative to each other, thereby adjusting the opening and closing state of the gap 194.

[0034] Furthermore, if Figure 3 , 4 As shown, a second stopper 192 is provided in the airflow passage upstream of the airflow regulating valve 19 within the action range of the spring force. After the airflow regulating valve 19 contacts the second stopper 192 , the gap 194 is neither closed nor the hollow 193 is affected.

[0035] In this embodiment, if Figure 3 , 4As shown, in order to further stabilize the position of the airflow regulating valve 19 in the airflow channel, a second stopper 192 is further provided on the side of the airflow regulating valve 19 away from the elastic element 18 within the elastic force action range of the elastic element 18. The second stopper 192 is not an annular structure, but a block structure. The airflow regulating valve 19 abuts against the second stopper 192 under the elastic force of the elastic element 18. Figure 4 As shown, at this time, the gap 194 is still open, and the gas can pass through the hollow 193 in the middle of the airflow regulating valve 19 and the gap 194 between it and the airflow channel. It can be understood that in other embodiments, the second stopper 192 can be a non-annular structure other than other structures that do not close the gap 194 and do not affect the hollow 193, such as a grid-like structure, etc., which can achieve the purpose of the present invention.

[0036] In one embodiment of the present invention, a second stopper 192 is provided in the airflow passage upstream of the airflow regulating valve 19 , one end of the elastic element 18 is fixed to the second stopper 192 , and the other end is fixed to the airflow regulating valve 19 .

[0037] In this embodiment, the elastic element 18 is located upstream of the airflow regulating valve 19, the second stopper 192 is located upstream of the elastic element 18, the first stopper 191 is located downstream of the airflow regulating valve 19, one end of the elastic element 18 is fixed on the second stopper 192, and the other end is fixed on the airflow regulating valve 19. Similarly, when there is no gas passing through the airflow channel, or the gas flow rate is low, the elastic force of the elastic element 18 on the airflow regulating valve 19 is dominant, and the airflow regulating valve 19 is far away from the first stopper 191. At this time, the gas can pass through the hollow 193 in the middle of the airflow regulating valve 19 and the gap 194 between it and the airflow channel. When the gas flow rate is high, the pushing effect of the airflow on the airflow regulating valve 19 is dominant, the elastic element 18 is in a stretched state, the airflow regulating valve 19 is against the first stopper 191, and the gap 194 is closed. At this time, the gas can only pass through the hollow 193 in the middle of the airflow regulating valve 19.

[0038] At the same time, the present invention also provides an atomizing cup 1, such as Figure 1 , 2As shown, it includes an upper cup shell 11 and a lower cup shell 12, the upper cup shell 11 and the lower cup shell 12 are detachably connected, the bottom of the lower cup shell 12 is a liquid storage tank 13, the liquid storage tank 13 is provided with an air flow nozzle 14 upward, the lower part of the air flow nozzle 14 penetrates the bottom wall of the liquid storage tank 13 to form an air flow channel with a conical inner cavity, the upper part of the outer wall of the air flow nozzle 14 is covered with a cover shell 16, the inner wall of the cover shell 16 and the outer wall of the air flow nozzle 14 form a liquid suction channel 15 extending from the liquid storage tank 13 to the top of the air flow nozzle 14, and an atomizing baffle is provided above the air flow nozzle 14 17, wherein an airflow regulating valve 19, a first stopper 191 and an elastic element 18 are provided in the inner cavity of the airflow nozzle 14, the middle of the airflow regulating valve 19 is a hollow 193 for airflow to pass through, there is a gap 194 between the outer side of the airflow regulating valve 19 and the inner cavity of the airflow channel and the airflow regulating valve 19 can slide in the inner cavity, and when it is fitted with the downstream first stopper 191, the gap 194 can be closed but the hollow 193 is not blocked, the airflow regulating valve 19 moves away from the first stopper 191 under the elastic force of the elastic element 18 to open the gap 194, and can overcome the elastic force and fit with the first stopper 191 under the push of the airflow.

[0039] In this embodiment, if Figure 2 As shown, the inner cavity of the conical airflow nozzle 14 constitutes a conical airflow channel, in which an airflow regulating valve 19, a first stopper 191 and an elastic element 18 are sequentially arranged along the airflow direction. Similarly, the middle of the airflow regulating valve 19 has a hollow 193 with openings at both ends along the airflow direction. There is a gap 194 between the outer side and the inner cavity of the airflow nozzle 14 and the valve can slide in the inner cavity. When it is in contact with the downstream first stopper 191, the gap 194 can be closed without blocking the hollow 193. When the airflow velocity is low, the elastic force of the elastic element 18 on the airflow regulating valve 19 is dominant, and the airflow regulating valve 19 is away from the first block 191 under the action of the elastic force, and the gap 194 is in an open state, and the airflow flow rate is increased by increasing the air intake area; when the airflow velocity is high, the pushing effect of the airflow on the airflow regulating valve 19 is dominant, the elastic element 18 is in a compressed state, the airflow regulating valve 19 fits the first block 191, and the gap 194 is closed. At this time, the gas can only pass through the hollow 193 in the middle of the airflow regulating valve 19, and the airflow flow rate is reduced by reducing the air intake area. Finally, the airflow flow discharged from the air outlet is as constant as possible. At this time, when the cross-section of the air outlet is constant, the airflow velocity at the air outlet will be constant, and the atomization effect of the medicinal liquid in the atomization cup 1 will be as consistent as possible.

[0040] Furthermore, if Figure 3 , 4As shown, the elastic element 18 is a spring that runs through the upstream and downstream of the first stopper 191 , one end of which is fixed to the inner cavity of the air flow channel downstream of the first stopper 191 , and the other end is fixed to the air flow regulating valve 19 upstream of the first stopper 191 .

[0041] In this embodiment, if Figure 3 , 4 As shown, the elastic element 18 is a spring, which is located downstream of the airflow regulating valve 19, the first stopper 191 is located between the elastic element 18 and the airflow regulating valve 19, one end of the elastic element 18 is fixed to the inner cavity of the airflow channel downstream of the first stopper 191, and the other end is fixed to the airflow regulating valve 19. Under the action of the elastic force of the elastic element 18 and the thrust of the airflow, the airflow regulating valve 19 and the first stopper 191 move relative to each other, thereby adjusting the opening and closing state of the gap 194.

[0042] Furthermore, if Figure 3 , 4 As shown, a second stopper 192 is further provided upstream of the airflow regulating valve 19 within the elastic force action range of the elastic element 18 , and the airflow regulating valve 19 does not close the gap 194 nor block the hollow 193 after contacting the second stopper 192 under the action of the elastic force.

[0043] In this embodiment, if Figure 3 , 4 As shown, in order to further stabilize the position of the airflow regulating valve 19 in the airflow channel, a second stopper 192 is elastically provided on the side of the airflow regulating valve 19 away from the elastic element 18 and within the elastic force range of the elastic element 18. The second stopper 192 may be a block-shaped structure. The airflow regulating valve 19 abuts against the second stopper 192 under the elastic force of the elastic element 18. At this time, the hollow 193 is not blocked and the gap 194 is open, and the gas can pass through the hollow 193 in the middle of the airflow regulating valve 19 and the gap 194 between it and the airflow channel. In other embodiments, the second stopper 192 may be a structure other than an annular structure, such as a fulcrum structure, a grid-like structure, etc. As long as the gap 194 is not closed and the hollow 193 is not blocked when the airflow regulating valve 19 abuts against the second stopper 192, the purpose of the present invention can be achieved.

[0044] In another embodiment of the present invention, a second stopper 192 is provided in the air flow passage upstream of the air flow regulating valve 19 , one end of the elastic element 18 is fixed to the second stopper 192 , and the other end is fixed to the air flow regulating valve 19 .

[0045] In this embodiment, the elastic element 18 is located upstream of the airflow regulating valve 19, the second stopper 192 is located upstream of the elastic element 18, the first stopper 191 is located downstream of the airflow regulating valve 19, one end of the elastic element 18 is fixed on the second stopper 192, and the other end is fixed on the airflow regulating valve 19. Similarly, when there is no gas passing through the airflow channel, or the gas flow rate is low, the elastic force of the elastic element 18 on the airflow regulating valve 19 is dominant, and the airflow regulating valve 19 is away from the first stopper 191. At this time, the gas can pass through the hollow 193 in the middle of the airflow regulating valve 19 and the gap 194 between it and the airflow channel. When the gas flow rate is high, the pushing effect of the airflow on the airflow regulating valve 19 is dominant, the elastic element 18 is in a stretched state, the airflow regulating valve 19 is against the first stopper 191, and the gap 194 is closed. At this time, the gas can only pass through the hollow 193 in the middle of the airflow regulating valve 19. The purpose of regulating the airflow flow is also achieved.

[0046] In one embodiment of the present invention, the outer side of the airflow regulating valve 19 is in a frustum or annular shape adapted to the conical inner cavity of the airflow channel, and the conical inner cavity body of the airflow channel constitutes the first stopper 191 .

[0047] In this embodiment, in order to enable the conical inner cavity body of the airflow channel to form the first stopper 191 to close the gap 194, when the airflow channel is conical, the airflow regulating valve 19 is designed as a frustum-shaped structure, and the frustum-shaped structure is adapted to the smaller cross-section in the conical inner cavity of the airflow channel. The airflow regulating valve 19 and the elastic element 18 are sequentially arranged in the airflow channel along the airflow direction. Similarly, the middle of the airflow regulating valve 19 has a hollow 193 with openings at both ends along the airflow direction. There is a gap 194 between the outer side and the inner cavity of the airflow nozzle 14 and it can slide in the inner cavity. When the airflow velocity is low, the elastic force of the elastic element 18 on the airflow regulating valve 19 is dominant. The airflow regulating valve 19 is located at a position with a larger cross section in the conical airflow channel under the action of the elastic force, and the gap 194 is in an open state, and the airflow flow rate is increased by increasing the air intake area; when the airflow velocity is high, the driving effect of the airflow on the airflow regulating valve 19 is dominant, and the airflow regulating valve 19 is against the part with a smaller cross section in the conical airflow channel and closes the gap 194. At this time, the gas can only pass through the hollow 193 in the middle of the airflow regulating valve 19, and the airflow flow rate is reduced by reducing the air intake area. In other embodiments of the present invention, it can be understood that the above effect can also be achieved when the airflow regulating valve 19 is annular.

[0048] In another embodiment of the present invention, Figure 2-4As shown, the airflow regulating valve 19 is a cylindrical structure, and the conical inner cavity of the airflow channel forms a tubular structure at the entrance whose inner diameter is slightly larger than the outer diameter of the cylindrical airflow regulating valve 19, and the upper end of the tubular structure bulges toward the middle to form a circular first stopper 191, and the inner diameter of the circular first stopper 191 is smaller than the outer diameter of the cylindrical airflow regulating valve 19.

[0049] In this embodiment, if Figure 2-4 As shown, the airflow regulating valve 19 is a cylindrical structure, and the conical inner cavity of the airflow channel forms a cylindrical structure at the entrance whose inner diameter is slightly larger than the outer diameter of the cylindrical airflow regulating valve 19, so that the inner cavity can accommodate the airflow regulating valve 19. The upper end of the cylindrical structure bulges toward the middle to form a first annular stopper 191, and the inner diameter of the first annular stopper 191 is smaller than the outer diameter of the cylindrical airflow regulating valve 19, so that when the airflow regulating valve 19 fits with the first stopper 191, on the one hand, the movement of the airflow regulating valve 19 is restricted, and on the other hand, the gap 194 is closed without affecting the hollow 193.

[0050] In addition, the present invention also provides an atomizing device, such as Figure 5-8 As shown, it comprises any one of the above-mentioned atomizing cups 1 and a compressed air tank 2 matched with the atomizing cup 1 , and the atomizing cup 1 is detachably connected to the compressed air tank 2 .

[0051] In this embodiment, if Figure 5-8 As shown, the atomizing device does not need to be used in conjunction with a compressed air machine, but only needs to be connected to an air compression tank 2, which provides the compressed gas required by the atomizing cup 1, and the atomizing cup 1 is adjusted by the air flow regulating valve 19 to make the flow rate entering the air flow transmission channel basically consistent. Figure 6 , 7 As shown, when the gas in the compressed air tank 2 is sufficient at the beginning, the air pressure P1 in the tank is relatively large, the gas flow rate entering the air flow channel is relatively large, and the air flow pushing the air flow regulating valve 19 is greater than the elastic force in the opposite direction provided by the elastic element 18. The air flow regulating valve 19 moves upward, against the first stopper 191, closing the gap 194, reducing the air intake area, and at the same time giving a larger air pressure P2 outside the tank, reducing the pressure difference inside and outside the pipe of the compressed air tank 2, reducing the exhaust speed of the compressed air tank 2, and reducing the air intake flow. Figure 8As shown, as the use time increases, the gas in the compressed air tank 2 decreases, the air pressure P1 in the tank decreases, the gas flow rate entering the air flow channel is small, and the air flow pushing the air flow regulating valve 19 is smaller than the elastic force in the opposite direction provided by the elastic element 18. The air flow regulating valve 19 moves downward, against the second stopper 192, and opens the gap 194, increasing the air intake area. At the same time, a smaller air pressure P2 outside the tank is given, increasing the pressure difference inside and outside the pipe of the compressed air tank 2, increasing the exhaust speed of the compressed air tank 2, and increasing the air intake flow. Finally, the exhaust flow of the compressed air tank 2 tends to be constant, so that the air flow rate out of the outlet is constant, and the atomization effect of the liquid medicine is constant.

[0052] Furthermore, if Figure 5 , 6 As shown, the compressed air tank 2 includes a valve core 21 , and the lower end of the air flow nozzle 14 of the atomizer cup 1 is sealedly connected to the valve core 21 of the compressed air tank 2 .

[0053] In this embodiment, if Figure 5 , 6 As shown, the air compression tank 2 includes a valve core 21 and a valve body, the valve core 21 is penetrated on the valve body, an air outlet hole 22 is provided on the valve core 21, and an exhaust port 23 is provided on the valve body. When the atomizer cup 1 is connected to the compressed air tank 2, the lower end of the air flow nozzle 14 of the atomizer cup is sealed and connected to the valve core 21 of the compressed air tank 2, and the valve core 21 is pressed down so that the air outlet hole 22 on the valve core 21 is communicated with the exhaust port 23 on the valve body, and the compressed gas is discharged from the valve core 21 into the atomizer cup 1; when the atomizer cup 1 and the compressed air tank 2 are separated, under the action of the spring 24, the valve core 21 returns to its original position, the air outlet hole 22 is separated from the exhaust port 23, and the release of gas stops.

[0054] Furthermore, if Figure 5 , 6 As shown, the atomizer cup 1 and the compressed air tank 2 are connected by snap fastening.

[0055] In this embodiment, if Figure 5 , 6 As shown, a buckle is designed under the atomizer cup 1 to clamp the edge of the valve seat of the compressed air tank 2, making disassembly easy.

[0056] The present invention uses specific embodiments to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An airflow regulating device, characterized in that The invention comprises an airflow channel and an airflow regulating valve (19), a first stopper (191) and an elastic element (18) located in the airflow channel. The middle of the airflow regulating valve (19) is a hollow (193) for airflow to pass through. There is a gap (194) between the outer side of the airflow regulating valve and the inner cavity of the airflow channel and the valve can slide in the inner cavity. When the valve is fitted with the first stopper (191) downstream, the gap (194) can be closed but the hollow (193) is not blocked. Under the elastic force of the elastic element (18), the airflow regulating valve (19) moves away from the first stopper (191) to open the gap (194), and can overcome the elastic force and fit with the first stopper (191) under the push of the airflow.

2. The airflow regulating device according to claim 1, characterized in that The elastic element (18) is a spring that runs through the upstream and downstream of the first stopper (191), one end of which is fixed to the inner cavity of the air flow channel downstream of the first stopper (191), and the other end of which is fixed to the air flow regulating valve (19) upstream of the first stopper (191).

3. The airflow regulating device according to claim 2, characterized in that A second stopper (192) is also provided in the airflow passage upstream of the airflow regulating valve (19) within the range of action of the spring elastic force. When the airflow regulating valve (19) contacts the second stopper (192), the gap (194) is neither closed nor the hollow (193) is blocked.

4. The airflow regulating device according to claim 1, characterized in that A second stopper (192) is provided in the airflow passage upstream of the airflow regulating valve (19); one end of the elastic element (18) is fixed to the second stopper (192), and the other end is fixed to the airflow regulating valve (19).

5. An atomizer cup (1), comprising an upper cup shell (11) and a lower cup shell (12), wherein the upper cup shell (11) and the lower cup shell (12) are detachably connected, the bottom of the lower cup shell (12) is a liquid storage tank (13), and the liquid storage tank (13) is provided with an air flow nozzle (14) upwardly, and the lower part of the air flow nozzle (14) penetrates the bottom wall of the liquid storage tank (13) to form an air flow channel with a conical inner cavity, the upper part of the outer wall of the air flow nozzle (14) is covered with a cover shell (16), and the inner wall of the cover shell (16) and the outer wall of the air flow nozzle (14) form a liquid suction channel (15) extending from the liquid storage tank (13) to the top of the air flow nozzle (14), and an atomizer baffle (17) is provided above the air flow nozzle (14), characterized in that: An airflow regulating valve (19), a first stopper (191) and an elastic element (18) are provided in the inner cavity of the airflow nozzle (14); the middle of the airflow regulating valve (19) is a hollow (193) through which airflow can pass; there is a gap (194) between the outer side of the airflow regulating valve and the inner cavity of the airflow channel and the airflow regulating valve can slide in the inner cavity; when the airflow regulating valve (19) is in contact with the first stopper (191) downstream, the gap (194) can be closed but the hollow (193) is not blocked; under the elastic force of the elastic element (18), the airflow regulating valve (19) moves away from the first stopper (191) to open the gap (194), and can overcome the elastic force and be in contact with the first stopper (191) under the push of the airflow.

6. The atomizer cup (1) according to claim 5, characterized in that The elastic element (18) is a spring that runs through the upstream and downstream of the first stopper (191), one end of which is fixed to the inner cavity of the air flow channel downstream of the first stopper (191), and the other end of which is fixed to the air flow regulating valve (19) upstream of the first stopper (191).

7. The atomizer cup (1) according to claim 6, characterized in that: A second stopper (192) is also provided upstream of the airflow regulating valve (19) within the range of elastic force of the elastic element (18); when the airflow regulating valve (19) contacts the second stopper (192) under the action of the elastic force, the airflow regulating valve (19) neither closes the gap (194) nor blocks the hollow (193).

8. The atomizer cup (1) according to claim 5, characterized in that A second stopper (192) is provided in the airflow passage upstream of the airflow regulating valve (19); one end of the elastic element (18) is fixed to the second stopper (192), and the other end is fixed to the airflow regulating valve (19).

9. The atomizer cup (1) according to claim 5, characterized in that: The outer side of the airflow regulating valve (19) is in a frustum or annular shape adapted to the conical inner cavity of the airflow channel, and the conical inner cavity body of the airflow channel constitutes the first stopper (191).

10. The atomizer cup (1) according to claim 5, characterized in that The airflow regulating valve (19) is a cylindrical structure. The conical inner cavity of the airflow channel forms a tubular structure at the entrance, the inner diameter of which is slightly larger than the outer diameter of the cylindrical airflow regulating valve (19). The upper end of the tubular structure bulges toward the middle to form a first annular stopper (191). The inner diameter of the first annular stopper (191) is smaller than the outer diameter of the cylindrical airflow regulating valve (19).

11. An atomizing device, characterized in that It comprises an atomizer cup (1) as claimed in any one of claims 5 to 10 and a compressed air tank (2) matching the atomizer cup (1), wherein the atomizer cup (1) is detachably connected to the compressed air tank (2).

12. The atomizing device according to claim 11, characterized in that The compressed air tank (2) comprises a valve core (21), and the lower end of the air flow nozzle (14) of the atomizing cup (1) is sealedly connected to the valve core (21) of the compressed air tank (2).

13. The atomizing device according to claim 11, characterized in that: The atomizing cup (1) and the compressed air tank (2) are connected via a buckle.

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