Oxygen therapy machine

Abstract

The invention relates to the technical field of medical instruments, and discloses an oxygen therapy machine which comprises a mask and earmuffs, air collecting cavities are formed in the outer sides of the earmuffs and the mask, the earmuffs and the mask are communicated with the corresponding air collecting cavities, the mask is provided with an air box assembly, and the air box assembly is communicated with the air collecting cavities in the mask and the earmuffs. The mask is further provided with a controller and a sensing assembly, the sensing assembly is used for converting a breathing signal into an electric signal, the controller is in telecommunication connection with the air box assembly and the sensing assembly, and the controller is used for controlling the air box assembly to blow air to the earmuffs and the air collecting cavity of the mask. The sensing assembly can change in time, the air box assembly can blow air into the first air collecting cover and the second air collecting cover in time through the controller, the comfort degree of the ears of the patient can be improved, carbon dioxide in the mask can be exhausted in time, and the effects of improving the comfort degree of the patient and increasing the oxygen utilization rate are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an oxygen therapy machine. Background Art

[0002] Patients after craniocerebral surgery are prone to hypoxemia due to respiratory muscle dysfunction or central respiratory regulation disorder. Oxygen therapy is an important means to correct hypoxia and improve respiratory function. Oxygen therapy can increase arterial blood oxygen content, promote tissue cell metabolism, and maintain the body's life activities.

[0003] The Chinese invention patent with application number 202310653726.4 discloses an oxygen therapy device, including a mask, the mask including a first mask body that fits with the nose and mouth and a second mask body that fits with the ear, the first mask body and the second mask body are connected, and also includes a supply device, the supply device includes a high-pressure oxygen cylinder and a pressure regulating device, the high-pressure oxygen cylinder and the pressure regulating device are connected, the pressure regulating device and the first mask body are connected through an air intake pipe, the pressure regulating device automatically adjusts the oxygen concentration in the pressure regulating device by detecting the oxygen concentration in the air intake pipe or the first mask body, when the patient inhales, the pressure in the first mask body decreases, and oxygen flows from the pressure regulating device into the first mask body, and at the same time, oxygen also flows into the second mask body through the first mask body, thereby ensuring the pressure balance on both sides of the patient's inner ear and outer ear, and improving the patient's comfort.

[0004] However, the prior art still has the following technical problems: the second mask body is connected to the first mask body, which isolates the external sound during the patient's breathing process, and the patient's ear comfort is poor. In addition, when the patient uses the oxygen therapy machine, the breathing frequency will change due to different sleep quality, and the exhaust valve cannot change in real time according to the patient's breathing frequency, so the carbon dioxide in the first mask body cannot be discharged in time, reducing the oxygen concentration in the first mask body, thereby reducing the patient's treatment efficiency and breathing quality. Summary of the invention

[0005] The present invention is intended to provide an oxygen therapy machine to solve the problems of poor ear comfort and inability to discharge carbon dioxide in the mask in a timely manner during use by patients.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an oxygen therapy machine, including a mask and earmuffs, the earmuffs and the mask are both provided with air collecting cavities on the outside, and the earmuffs and the mask are both connected with the air collecting cavities, the mask is equipped with an air box assembly, the air box assembly is connected with the air collecting cavities at the mask and the earmuffs, the mask is also equipped with a controller and a sensing assembly, the sensing assembly is used to convert a breathing signal into an electrical signal, the controller is electrically connected to the air box assembly and the sensing assembly, and the controller is used to control the air box assembly to blow air into the air collecting cavities of the earmuffs and the mask respectively.

[0007] The beneficial effects of the present solution are as follows: by setting up a sensing component, the sensing component timely converts the patient's breathing frequency into an electrical signal and transmits it to the controller. The controller makes a judgment based on the pre-input signal range, and then the controller sends a control signal to the air box component. When it is necessary to balance the pressure on the inner ear, the air box component holds the air in the air collecting cavity outside the earmuff. At this time, a faster airflow is generated in the air collecting cavity outside the earmuff. Since the air collecting cavity inside the earmuff and the air collecting cavity outside the earmuff are connected, there is an air pressure difference between the air collecting cavity and the inside of the earmuff. Therefore, an airflow is formed at the patient's outer ear to balance the eardrum discomfort caused by internal inhalation. In the prior art, when the patient inhales oxygen in the first mask, oxygen also enters the second mask. When carbon dioxide is exhaled, carbon dioxide also enters the second mask. Therefore, compared with the prior art, the earmuff design in the present solution can not only make the patient's hearing normal and increase comfort, but also improve the utilization rate of oxygen.

[0008] In addition, compared with the prior art, the sensing component can monitor the user's breathing frequency in real time, and can promptly control the air box component to blow air into the air collecting chamber outside the mask through the controller. Since the inside of the mask is connected to the air collecting chamber, a larger airflow is generated in the air collecting chamber outside the mask. At this time, the carbon dioxide exhaled in the mask can be quickly discharged. Compared with the prior art, the frequency of carbon dioxide discharge from the mask to the outside can be adjusted in time according to the patient's breathing frequency, thereby achieving the purpose of timely exhausting carbon dioxide.

[0009] Furthermore, the mask is provided with an exhaust port, a first air collecting hood is fixed to the mask outside the exhaust port, the first air collecting hood is connected with the exhaust port, and a first through hole is provided in the first air collecting hood; the earmuffs are provided with a ventilation port, a second air collecting hood is fixed to the earmuffs outside the ventilation port, the second air collecting hood is connected with the ventilation port, and a second through hole is provided in the second air collecting hood, and the air collecting cavities at the mask and the earmuffs are respectively formed in the first air collecting hood and the second air collecting hood.

[0010] Furthermore, the air box assembly includes an air box body, a main air valve, a first air valve and a second air valve installed on the air box body, the main air valve is used to suck gas from the outside into the air box body, a first air duct is connected between the first air valve and the first through hole, and a second air duct is connected between the second air valve and the second through hole, the first air valve and the second air valve are respectively used to blow the gas in the air box body toward the first through hole and the second through hole.

[0011] The beneficial effects of this solution are: the main air valve sucks external gas into the air box, and the controller controls the first air valve and the second air valve to deliver gas to the mask and the earmuffs respectively, which can meet different needs and blow air separately.

[0012] Furthermore, a baffle is rotatably arranged at the exhaust port, a torsion spring is arranged between the baffle and the mask, and a block is arranged on the mask, and the block is used to prevent the baffle from rotating toward the inside of the mask.

[0013] The beneficial effects of this solution are as follows: when inhaling, oxygen enters the mask through the air inlet pipe from the pressure regulating device. At this time, the exhaust port is closed to prevent oxygen from flowing out. At this time, the torsion spring is not subjected to force and drives the baffle to press against the block. At the same time, air flow is formed inside the mask. The external air pressure is greater than the internal air pressure. The air pressure will also push the baffle against the block to prevent convection between the inside and outside of the mask through the exhaust port. When exhaling, the exhaled carbon dioxide increases, and the air pressure inside the mask is greater than the external air pressure. At the same time, the controller controls the first air valve to blow air toward the first through hole. At this time, the pressure difference between the mask and the inside and outside of the exhaust port is large. Therefore, under the action of pressure, the baffle flips outward and discharges the carbon dioxide in time, thereby achieving the purpose of unidirectional flow of gas at the exhaust port.

[0014] In addition, when the patient breathes rapidly and inhales, the air pressure inside the mask is too low than the atmospheric pressure. Therefore, the baffle rotates under the drive of the torsion spring and is also affected by the atmospheric pressure, causing the baffle to rotate rapidly and collide with the block. When the patient continues to breathe rapidly, the baffle and the block will also collide continuously, which will cause the mask to vibrate continuously, accelerating the collection of water droplets on the inner wall of the mask, reducing the space occupied by water droplets inside the mask, and providing space for oxygen.

[0015] Furthermore, the sensing component includes a sensing box installed on the mask, the sensing box is connected to the inside of the mask, electrodes are respectively provided at both ends of the sensing box, a resistor is provided in the sensing box, a sensing block is also slidably provided in the sensing box, the sensing block is slidably connected to the resistor, and the resistor and the sensing block are respectively connected to the electrodes on both sides.

[0016] Furthermore, a sealing ring is provided between the induction block and the side wall of the induction box. The induction block divides the induction box into a first cavity and a second cavity. The first cavity is connected to the inside of the mask, and the second cavity is connected to the outside.

[0017] The beneficial effects of this solution are as follows: the electrodes on both sides are connected through a resistor and a sensing block respectively, and at the same time the sensing block separates the two sides of the sensing box, one end is squeezed by the breathing pressure in the mask, and the other end is equal to the atmospheric pressure. The length of the resistor in the circuit changes during the sliding of the sensing block, so the sliding speed of the sensing block is converted into the changing frequency of the current, which can monitor the patient's breathing frequency, thereby achieving the purpose of real-time monitoring of the patient's breathing frequency.

[0018] Furthermore, the main air valve is connected to the main air duct, a semiconductor refrigeration plate is installed on the inner wall of the air box body, the main air duct is embedded in the surface of the semiconductor refrigeration plate, the first air duct and the second air duct are both embedded in the mask surface, and the mask surface material is set to be a heat-conductive material.

[0019] Furthermore, the inner wall of the mask is provided with a plurality of water accumulation grooves and a collecting groove, the collecting groove is connected to the plurality of water accumulation grooves, and the collecting groove is used for placing absorbent towels.

[0020] The beneficial effects of this solution are as follows: by setting up a semiconductor refrigeration sheet, the gas sucked into the main air valve can be cooled. Since the first air duct and the second air duct are both embedded in the surface of the mask, the cooled gas is transported through the first air valve and the second air valve respectively. After the mask is cooled, the temperature inside the mask can be cooled. Since the patient breathes for a long time, there is a lot of hot air inside the mask, and long-term use may cause facial discomfort to the patient. Therefore, the cooled gas is cooled and condensed into water droplets in the water storage tank, and flows into the collection tank to be absorbed by the absorbent towel, which can effectively alleviate the patient's facial discomfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 for Figure 1 Schematic diagram of the mask structure at the middle part A;

[0023] Figure 3 Schematic diagram of the cross-sectional structure of the interior of the mask and the exhaust port of the mask according to an embodiment of the present invention;

[0024] Figure 4 For the embodiment of the present invention Figure 3 Schematic diagram of the local structure of the mask exhaust port at B in the middle;

[0025] Figure 5 is a schematic cross-sectional structure diagram of an earmuff according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the cross-sectional structure of the induction box according to an embodiment of the present invention;

[0027] Figure 7 It is a schematic diagram of the cross-sectional structure of the air box body according to an embodiment of the present invention. DETAILED DESCRIPTION

[0028] The following is further described in detail through specific implementation methods:

[0029] The reference numerals in the drawings of the specification include: mask 1, exhaust port 11, first air collecting cover 12, first through hole 121, connecting shaft 13, baffle 131, torsion spring 132, block 14, water trough 15, collecting tank 16, absorbent towel 161, earmuffs 2, vent 21, second air collecting cover 22, second through hole 221, air collecting cavity 3, air box assembly 4, air box body 41, main air valve 42, main air duct 421, first air valve 43, first air duct 431, second air valve 44, second air duct 441, induction assembly 5, induction box 51, first electrode 511, second electrode 512, first cavity 513, second cavity 514, induction block 52, sealing ring 521, resistor 53, controller 6, semiconductor refrigeration sheet 7, pressure regulating device 8, air intake pipe 81.

[0030] Example

[0031] An oxygen therapy machine, such as Figure 1-Figure 5 As shown, it includes a pressure regulating device 8 and a mask 1, an air intake pipe 81 is connected between the pressure regulating device 8 and the mask 1, the front side of the mask 1 is made of heat-conducting material, preferably a cold storage aluminum plate, exhaust ports 11 are symmetrically provided on both sides of the mask 1, the cross-section of the exhaust port 11 is circular, and a connecting shaft 13 is fixedly provided at the exhaust port 11, and baffles 131 are rotatably connected to the upper and lower sides of the connecting shaft 13, the baffle 131 is semicircular, and the baffle 131 is provided with a rotating hole for connecting and pumping through, the baffle 131 is located at the rotating hole and a torsion spring 132 is connected between the rotating shaft and the rotating hole, a stopper 14 is fixed to one side of the exhaust port 11 close to the inside of the mask 1, and the stopper 14 can prevent the baffle 131 from rotating to the inner side of the mask 1, and the mask 1 is located at the exhaust port A first wind collecting hood 12 is fixedly arranged on the outside of the mouth 11, and the two sides of the first wind collecting hood 12 are penetrated to form an wind collecting cavity 3, the wind collecting cavity 3 is connected with the exhaust port 11, the exhaust port 11 is connected with the inside of the mask 1, and the side wall of the first wind collecting hood 12 is provided with a first through hole 121; it also includes earmuffs 2, the earmuffs 2 are used to fit the patient's ears, and the bottom of the earmuffs 2 is provided with a vent 21, the vent 21 connects the inside of the earmuffs 2 with the outside, and a second wind collecting hood 22 is fixedly arranged on the outside of the bottom of the earmuffs 2 at the vent 21, the two sides of the second wind collecting hood 22 are penetrated and connected with the vent 21, the inside of the second wind collecting hood 22 is also formed with an wind collecting cavity 3, and the side wall of the second wind collecting hood 22 is provided with a second through hole 221.

[0032] like Figure 6As shown, the mask 1 is fixedly provided with a sensing component 5 on the outside of the front plate, and the sensing component 5 includes a sensing box 51 fixedly connected to the mask 1. The bottom surface of the end of the sensing box 51 and the front plate of the mask 1 are provided with corresponding through holes. The sensing box 51 is connected with the inside of the mask 1 through the through holes. Electrodes are respectively provided at both ends of the sensing box 51, and the electrodes include a first electrode 511 located at one end of the through hole and a second electrode 512 away from one end of the through hole. A resistor 53 is fixedly provided in the sensing box 51 along the length direction, and the resistor 53 is fixedly connected to the second electrode 512. A sensing block 52 is slidably connected in the length direction in the sensing box 51, and fixed protrusions on both sides of the sensing block 52 A slider is provided, and the slider is conductive. Slide grooves for the slider to be embedded are symmetrically provided on both sides of the induction box 51. Conductive sheets are fixedly provided in the slide grooves, and the conductive sheets are fixedly connected to the first electrodes 511. The induction block 52 is provided with a connecting groove for the resistor sheet 53 to slide, and a conductive sheet is also fixedly provided on the inner wall of the connecting groove. A sealing ring 521 is connected to the outer side of the induction block 52 for sealing the induction block 52 and the side wall of the induction box 51. The induction block 52 divides the two sides of the induction box 51 into a first cavity 513 and a second cavity 514 respectively. The first cavity 513 is connected to the inside of the mask 1 through a through hole, and the side wall at the end of the second cavity 514 is also provided with a through hole and connected to the outside.

[0033] When the patient uses the mask 1, oxygen enters the mask 1 during inhalation, and the air flow speed becomes faster. At this time, the gas pressure in the second cavity 514 is greater than the gas pressure in the first cavity 513, and the atmospheric pressure squeezes the sensor block 52 from the second cavity 514 to the first cavity 513. At this time, in the circuit composed of the first electrode 511, the second electrode 512, the sensor block 52 and the resistor 53, the length of the resistor 53 increases, the circuit resistance increases, and the current decreases. Therefore, the patient's inhalation signal is converted into an electrical signal through the sensing component 5. When exhaling, a large amount of carbon dioxide enters the mask 1. At this time, the gas pressure in the mask 1 increases, and the sensor block 52 is squeezed from the first cavity 513 to the second cavity 514. At this time, the length of the resistor 53 in the circuit decreases, and the reduced resistance causes the current to increase. Therefore, the patient's exhalation signal is also converted into an electrical signal through the sensing component 5, and the patient's breathing frequency can be converted into an electrical signal through continuous sensing.

[0034] like Figure 1 , Figure 2 , Figure 7As shown, the front plate of the mask 1 is also fixedly provided with an air box assembly 4, which includes an air box body 41 fixed to the front plate of the mask 1, and also includes a total air valve 42, a first air valve 43 and a second air valve 44 connected to the air box body 41, the total air valve 42 is used to suck external air into the air box body 41, a first air duct 431 is connected between the first air valve 43 and the first through hole 121, a second air duct 441 is connected between the second air valve 44 and the second through hole 221, the first air duct 431 and the second air duct 441 are both embedded in the surface of the front plate of the mask 1, in addition, the first air duct 431 and the second air duct 441 are both made of metal materials with strong thermal conductivity, and the first air duct 431 and the second air duct 441 can support the earmuffs 2, and the second air duct 431 and the second air duct 441 can support the earmuffs 2. The first air duct 431 and the second air duct 441 have a certain elasticity. When the patient uses it, the first air duct 431 and the second air duct 441 can be swung and corrected according to the width of the patient's face. The front plate of the mask 1 is made of heat-conductive material. The preferred embodiment of the present invention is a cold storage aluminum plate. The side wall of the air box body 41 is provided with an installation port for installing the semiconductor refrigeration plate 7. The semiconductor refrigeration plate 7 is installed at the installation port of the air box body 41. The main air valve 42 is connected to the main air duct 421. The main air duct 421 is embedded in the semiconductor refrigeration plate 7 on one side inside the air box. The semiconductor refrigeration plate 7 is located on the side outside the air box. A heat sink and a cooling fan are fixedly installed. The front plate of the mask 1 is also fixedly installed with a controller 6, and the controller 6 is electrically connected to the sensing component 5 and the air box component 4.

[0035] When the patient breathes, the sensing component 5 converts the breathing frequency into an electrical signal. A Hall sensor is connected between the sensing component 5 and the controller 6. The Hall sensor uses the Hall effect to detect changes in the magnetic field. When the current of the sensing component 5 passes through the Hall sensor, a potential difference perpendicular to the magnetic field will be generated inside the sensor, namely, the Hall voltage. The magnitude of this voltage is proportional to the magnetic field strength and the current. The Hall sensor converts the detected magnetic field changes into electrical signals and transmits them to the controller 6 via electrical signals. After receiving these signals, the controller 6 amplifies and processes the signals through the internal signal processing circuit (such as amplifiers, filters, etc.) to ensure the accuracy and stability of the signals. The controller 6 determines the state of the circuit based on the received signal and issues instructions to the air box component 4 based on the judgment result. When the patient inhales, the electrical signal transmitted by the sensing component 5 is a decrease in current. At this time, the controller 6 recognizes that the current is decreasing. The signal is used to control the second air valve 44 to open. The second air valve 44 sends the gas in the air box body 41 to the second through hole 221 through the second air duct 441. At this time, the gas flow rate in the second air collecting hood 22 increases, and the gas in the earmuff 2 is retained from the vent 21, thereby balancing the air pressure on both sides of the patient's inner ear and outer ear to ensure the comfort of the patient's ears. When the patient exhales, the electrical signal transmitted by the sensing component 5 is how large the current is. At this time, the controller 6 recognizes the electrical signal and controls the first air valve 43 to open. The first air valve 43 sends the gas in the air box body 41 to the first through hole 121 through the first air duct 431. At this time, the gas flow rate in the first air collecting hood 12 is enhanced, the air pressure is reduced, the air pressure inside the mask 1 is relatively large, and there is a large air pressure difference between the two, thereby completely discharging the carbon dioxide in the mask 1. At the same time, the air pressure in the earmuff 2 is relatively small, and the outside air enters the earmuff 2 through the vent 21.

[0036] like Figure 3 As shown, a plurality of water storage grooves 15 are vertically opened on the inner side of the mask 1, and a collecting groove 16 is horizontally opened. The plurality of water storage grooves 15 are connected to the collecting groove 16, and a replaceable absorbent towel 161 is placed in the collecting groove 16. When the first air duct 431 and the second air duct 441 respectively transport gas, since the first air duct 431 and the second air duct 441 and the front plate of the mask 1 are all made of heat-conducting materials, the cooled gas transfers the temperature to the front plate of the mask 1, and the temperature of the front plate of the mask 1 gradually decreases. Due to the patient's breathing, the temperature and humidity in the mask 1 are high, which will cause discomfort to the user's face. Therefore, the hot air and water vapor in the mask 1 will quickly cool down or even condense into water vapor when they touch the inner side of the front plate of the mask 1. The water vapor gathers in the plurality of water storage grooves 15 and flows downward to the collecting groove 16, and the absorbent towel 161 in the collecting groove 16 absorbs it. The absorbent towel 161 in the collecting groove 16 can be replaced.

[0037] When the patient breathes rapidly, that is, the respiratory rate is high, the patient exhales carbon dioxide quickly, so the concentration of water molecules inside the mask 1 is relatively high, causing the patient to breathe rapidly. When breathing rapidly, part of the gas exhaled by the patient enters the first cavity 513 of the sensing box 51 and pushes the sensing block 52 to move rapidly in the second cavity 514 away from the first cavity 513, and finally causes the sensing block 52 to hit the side wall of the sensing box 51. When the patient continues to breathe rapidly, the sensing block 52 continuously hits the side wall of the sensing box 51, causing the mask 1 to vibrate. Since the cooled water vapor in the water storage groove 15 set on the front plate of the mask 1 condenses into water droplets and is located in the water storage groove 15, during the continuous shaking of the mask 1, the water droplets quickly flow down in the water storage groove 15 and flow to the collection groove 16 and are finally quickly collected by the absorbent towel 161, which can reduce the water vapor concentration in the mask 1, increase the space for the entry of oxygen, and can effectively relieve the patient's feeling of suffocation and ensure the patient's Life safety. In addition, when the patient inhales, the first air collecting hood 12 stops blowing, and at the same time, the torsion spring 132 recovers its deformation and drives the baffle 131 to rotate to the stopper 14. However, when the patient breathes rapidly and inhales, the air pressure inside the mask 1 is too lower than the atmospheric pressure. Therefore, the baffle 131 rotates driven by the torsion spring 132 while being affected by the atmospheric pressure. Therefore, the baffle 131 rotates rapidly and collides with the stopper 14. When the patient continues to breathe rapidly, the baffle 131 and the stopper 14 will also collide continuously, which will cause the mask 1 to vibrate continuously. Therefore, when the patient breathes rapidly, the baffle 131 collides with the stopper 14 when inhaling, and the sensor block 52 collides with the side wall of the sensor box 51 when exhaling, which can ensure that the mask 1 vibrates continuously when the patient breathes rapidly, which will promote the collection speed of water droplets in the water trough 15 and the collection trough 16, quickly relieve the patient's feeling of suffocation, further ensure the patient's breathing safety, and improve the treatment effect.

[0038] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. An oxygen therapy machine, comprising a mask, characterized in that: It also includes earmuffs, which are provided with air collecting cavities on the outer sides of the earmuffs and the mask, and the earmuffs and the mask are connected to the air collecting cavities. The mask is equipped with an air box assembly, and the air box assembly is connected to the air collecting cavities at the mask and the earmuffs. The mask is also equipped with a controller and a sensing assembly, and the sensing assembly is used to convert a breathing signal into an electrical signal. The controller is electrically connected to the air box assembly and the sensing assembly, and the controller is used to control the air box assembly to blow air into the air collecting cavities of the earmuffs and the mask respectively.

2. The oxygen therapy device according to claim 1, characterized in that: The mask is provided with an exhaust port, a first air collecting hood is fixed to the mask outside the exhaust port, the first air collecting hood is communicated with the exhaust port, and a first through hole is provided in the first air collecting hood; the earmuffs are provided with a vent, a second air collecting hood is fixed to the earmuffs outside the vent, the second air collecting hood is communicated with the vent, and a second through hole is provided in the second air collecting hood; the air collecting cavities at the mask and the earmuffs are respectively formed in the first air collecting hood and the second air collecting hood.

3. The oxygen therapy device according to claim 2, characterized in that: The air box assembly includes an air box body, a main air valve, a first air valve and a second air valve installed on the air box body, the main air valve is used to suck gas from the outside into the air box body, a first air duct is connected between the first air valve and the first through hole, and a second air duct is connected between the second air valve and the second through hole, the first air valve and the second air valve are respectively used to blow the gas in the air box body to the first through hole and the second through hole.

4. The oxygen therapy device according to claim 3, characterized in that: A baffle is rotatably arranged at the exhaust port, a torsion spring is arranged between the baffle and the mask, and a stopper is arranged on the mask, which is used to prevent the baffle from rotating toward the inside of the mask.

5. The oxygen therapy device according to claim 4, characterized in that: The sensing component includes a sensing box installed on the mask, the sensing box is connected to the inside of the mask, electrodes are respectively arranged at both ends of the sensing box, a resistor is arranged inside the sensing box, a sensing block is also slidably arranged inside the sensing box, the sensing block is slidably connected to the resistor, and the resistor and the sensing block are respectively connected to the electrodes on both sides.

6. The oxygen therapy device according to claim 5, characterized in that: A sealing ring is arranged between the induction block and the side wall of the induction box. The induction block divides the induction box into a first cavity and a second cavity. The first cavity is connected to the inside of the mask, and the second cavity is connected to the outside.

7. The oxygen therapy device according to claim 6, characterized in that: The main air valve is connected to the main air duct, a semiconductor refrigeration plate is installed on the inner wall of the air box body, the main air duct is embedded in the surface of the semiconductor refrigeration plate, the first air duct and the second air duct are both embedded in the surface of the mask, and the surface material of the mask is set to be a heat-conducting material.

8. The oxygen therapy device according to claim 7, characterized in that: The inner wall of the mask is provided with a plurality of water accumulation grooves and a collecting groove, the collecting groove is connected with the plurality of water accumulation grooves, and the collecting groove is used for placing absorbent towels.

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