A respiratory muscle strength tester based on rehabilitation assessment

Abstract

The present invention proposes a respiratory muscle strength tester based on rehabilitation assessment, which relates to the field of medical device technology, including: an outer shell, an exhalation chamber and an inhalation chamber are arranged inside the outer shell, and a dual-chamber test structure composed of an exhalation chamber and an inhalation chamber is adopted. During the test, separate tests are performed to block the spread of pollutants, and at the same time, targeted disinfection is facilitated to reduce the risk of cross infection. During the exhalation test, the sealing effect of the test chamber is ensured by using a sealing plate A and a magnetic strip A through a switching component. At the same time, when switching the chamber, the exhalation chamber is targeted and strengthened with the cooperation of a gear and a rack plate. After the exhalation and inhalation tests are completed, all chambers are fully disinfected and dried and exhausted through a disinfection component and a drying component. Only the mouthpiece needs to be replaced when it is used again. The cost is low and the replacement speed is fast. The present invention achieves the purpose of preventing cross infection and facilitating disinfection.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a respiratory muscle strength tester based on rehabilitation assessment. Background Art

[0002] The respiratory muscle strength tester is an intelligent medical device that accurately quantifies respiratory muscle function. Its core function is to evaluate the strength of the inspiratory and expiratory muscles, providing an objective basis for the diagnosis, rehabilitation treatment and efficacy tracking of respiratory diseases. The device is equipped with a high-precision strain gauge pressure sensor that can collect key parameters such as maximum inspiratory pressure (MIP) and maximum expiratory pressure (MEP) in real time to meet the clinical needs of capturing subtle changes in muscle strength.

[0003] The existing Chinese patent with publication number CN117100274A proposes a respiratory muscle strength tester for rehabilitation assessment, including a panel, a display screen, control buttons and a control detection structure. The display screen and control buttons are installed on the panel. The display screen is connected to the control detection structure through the panel. The lower end of the control detection structure is fixedly connected to a supporting base. The control detection structure is installed with an exhaust structure. The control detection structure is used to detect the exhaust structure and can detect the respiratory muscle strength through the movement inside the exhaust structure. The control detection structure can analyze and process the data and display it digitally through the display screen. The control button can be electrically connected to the control detection structure to realize the control of the control detection structure. The control detection structure includes a circuit board, a chip, a capacitor, a storage bar and a docking interface. The chip is installed on the circuit board. The control detection structure is realized by the setting of the control detection structure. However, the first docking component and the second docking component still need to be replaced after multiple uses. The internal displacement ball seat, limit sleeve and pull rope structures need to be replaced at the same time, which is costly and relatively troublesome to clean. At the same time, the fixing of the connecting parts requires the assistance of an electric push rod, and the matching locking structure is relatively duplicated, which is inconvenient to disassemble and assemble. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology. The present invention proposes a respiratory muscle strength tester based on rehabilitation assessment, thereby solving the problem that the internal detection structure of the respiratory muscle strength tester is easily contaminated and the replacement of accessories is relatively troublesome.

[0005] To solve the above technical problems, the present invention adopts a technical solution: a respiratory muscle strength tester based on rehabilitation assessment, comprising: an outer shell, an air injection port is opened on one side of the outer shell, a mouthpiece is provided on the side of the air injection port, an exhalation cavity and an inhalation cavity are provided inside the outer shell, an arc cavity is provided between the exhalation cavity and the inhalation cavity, and a switching component for switching the cavity is provided above the arc cavity;

[0006] The switching component includes a micro motor arranged inside the outer shell, the output end of the micro motor is fixedly connected to a rotating shaft, one end of the rotating shaft passes through the arc-shaped cavity, a sealing plate A is fixedly connected to the outside of the rotating shaft, a sealing gasket is provided on the edge of the sealing plate A, one end of the sealing plate A is in contact with the inner wall of the arc-shaped cavity, a strain gauge pressure sensor is provided on the inner wall of the exhalation cavity, a gear is fixedly connected to the outside of the rotating shaft, the gear is provided above the arc-shaped cavity, a movable plate is provided on the upper surface of the arc-shaped cavity, one side of the movable plate is fixedly connected to a rack plate, the rack plate is meshed with the gear, one end of the movable plate is fixedly connected to an extension rod, one end of the extension rod is fixedly connected to a sealing plate B, the upper surface of the exhalation cavity is fixedly connected to a liquid storage box, one end of the extension rod passes through one side of the liquid storage box, the sealing plate B is slidably connected to the inside of the liquid storage box, a liquid supply pipe is provided on one side of the liquid storage box, a one-way pressure valve is provided at the connection between the liquid supply pipe and the liquid storage box, and the other end of the liquid supply pipe passes through the exhalation cavity and is provided with an atomizing nozzle.

[0007] Furthermore, a limit plate is fixedly connected to the upper surface of the arc cavity, a limit groove is provided on one side of the limit plate, a limit block is fixedly connected to one side of the movable plate, and the limit block is slidably connected to the inside of the limit groove.

[0008] Furthermore, the internal structures of the exhalation cavity and the inhalation cavity are identical and symmetrically arranged.

[0009] Furthermore, a side door is hingedly provided on one side of the outer shell, a placement cavity is opened inside the outer shell, the side door is arranged corresponding to the placement cavity, a liquid storage tank is provided inside the placement cavity, a liquid infusion hose is fixedly connected to one side of the liquid storage box, a one-way pressure valve is provided at the connection between the liquid infusion hose and the liquid storage box, and the other end of the liquid infusion hose is connected to the interior of the liquid storage tank.

[0010] Furthermore, a disinfection component for synchronously disinfecting the exhalation chamber, the inhalation chamber and the interior of the arc-shaped cavity is provided inside the outer shell. The disinfection component includes a button that passes through the upper surface of the outer shell. The bottom surface of the button is fixedly connected to a bottom plate. One side of the bottom plate is fixedly connected to a vertical connecting plate. One side of the vertical connecting plate is fixedly connected to a connecting short plate. One side of the connecting short plate is fixedly connected to an infusion branch tube. The output ends of the infusion branch tube are respectively connected to the exhalation chamber, the inhalation chamber and the interior of the arc-shaped cavity and atomizing nozzles are provided at the connecting points. The bottom surface of the infusion branch tube is fixedly connected to a volumetric press pump, and the bottom surface of the volumetric press pump is fixedly connected to a bottom tube.

[0011] Furthermore, a spring A is fixedly connected between the bottom plate and the inner wall of the outer shell.

[0012] Furthermore, a magnetic strip A is fixedly connected to one side of the sealing plate A, and an exhaust groove A is provided on one side of the exhalation cavity, which runs through the exhalation cavity. The side of the exhalation cavity corresponding to the exhaust groove A is a hollow structure, and an inner partition is slidably connected to the inside of the exhalation cavity. A magnetic strip C is provided at one end of the inner partition, and the magnetic strip C and the magnetic strip A magnetically repel each other. A spring B is fixedly connected to one end of the inner partition, and one end of the spring B is fixedly connected to the inner wall of the outer shell. An exhaust groove B is provided on one side of the inner partition, and the exhaust groove B is provided corresponding to the exhaust groove A.

[0013] Furthermore, an exhaust groove C is opened on one side of the arc cavity, and one side of the arc cavity is a hollow structure. An exhaust component is arranged inside the arc cavity, and an arc plate is slidably connected inside the exhaust component. An exhaust groove D is opened on one side of the arc plate, and a magnetic strip B is fixedly connected to one side of the arc plate. The magnetic strip B is magnetically attracted to the magnetic strip A.

[0014] Furthermore, ventilation pipes are correspondingly provided on the outside of the exhaust groove A and the exhaust groove C, one end of the ventilation pipes is connected to the outside, and a filter is provided on one side of the ventilation pipes.

[0015] Furthermore, a drying component for introducing dry air into the interior of the outer shell is provided inside the outer shell, and the drying component includes an air pipe provided inside the outer shell, a one-way valve provided at the upper end of the air pipe, a micro piezoelectric pump provided on the outside of the air pipe, an air guide tube provided on the outside of the micro piezoelectric pump, a drying baffle provided at one end of the air guide tube, and one end of the air guide tube is connected to the outside.

[0016] Compared with the prior art, the beneficial effects of the present invention include: adopting a dual-chamber test structure composed of an exhalation chamber and an inhalation chamber, and performing separate tests during testing, which can block the spread of pollutants while facilitating targeted disinfection and reducing the risk of cross-infection. Through the setting of the switching component, the sealing plate A and the magnetic strip A are used to ensure the sealing effect of the test chamber during the exhalation test. At the same time, when switching the chamber, the exhalation chamber is targeted and strengthened with the cooperation of the gear and the rack plate. After the exhalation and inhalation tests are completed, all chambers are fully disinfected and dried and exhausted through the disinfection component and the drying component. Only the mouthpiece needs to be replaced, the cost is low and the replacement speed is fast, which achieves the effect of preventing cross-infection and facilitating disinfection, and ensures the accuracy, safety and ease of use of the respiratory muscle strength tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosure of the present invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention. In the accompanying drawings, the same reference numerals are used to refer to the same components. Among them:

[0018] Figure 1 The overall structure of the respiratory muscle strength tester proposed in accordance with one embodiment of the present invention is schematically shown. Figure 1 ;

[0019] Figure 2 The overall structure of the respiratory muscle strength tester proposed in accordance with one embodiment of the present invention is schematically shown. Figure 2 ;

[0020] Figure 3 Schematically shows the internal structure of a respiratory muscle strength tester proposed according to one embodiment of the present invention;

[0021] Figure 4 Schematically shows a switching component and an internal structure diagram of the exhalation chamber according to one embodiment of the present invention;

[0022] Figure 5 Schematically shows a structural diagram of a movable plate and a limiting plate proposed according to an embodiment of the present invention;

[0023] Figure 6 Schematically shows a schematic diagram of the internal structure of a liquid storage box proposed according to one embodiment of the present invention;

[0024] Figure 7 Schematically shows a schematic diagram of the internal structure of the arc-shaped cavity proposed according to one embodiment of the present invention;

[0025] Figure 8 Schematically shows a schematic structural diagram of an exhaust assembly proposed according to one embodiment of the present invention;

[0026] Figure 9 Schematically shows a structural diagram of a drying component proposed according to one embodiment of the present invention;

[0027] Figure 10 Schematically shows a structural diagram of a disinfection component proposed according to one embodiment of the present invention;

[0028] Figure 11 The schematic diagram of the partition structure proposed in accordance with one embodiment of the present invention is shown schematically.

[0029] Reference numerals in the figure: 1. outer shell; 11. mouthpiece; 12. side door; 13. exhalation chamber; 131. strain gauge pressure sensor; 132. exhaust slot A; 133. inner partition; 134. exhaust slot B; 135. magnetic strip C; 136. spring B; 14. inhalation chamber; 15. arc-shaped chamber; 151. exhaust slot C; 16. exhaust assembly; 161. arc-shaped plate; 162. exhaust slot D; 163. magnetic strip B; 2. liquid storage tank; 3. switching component; 31. micro motor; 32. rotating shaft; 33. gear; 34. sealing plate A; 341. magnetic strip A; 35. Movable plate; 351. Rack plate; 352. Limit block; 36. Limit plate; 361. Limit groove; 37. Extension rod; 371. Sealing plate B; 38. Liquid storage box; 381. Liquid replenishing hose; 382. Liquid supply pipe; 4. Disinfection component; 41. Button; 42. Bottom plate; 421. Spring A; 43. Vertical connecting plate; 44. Connecting short plate; 45. Infusion branch pipe; 46. Volumetric press pump; 47. Bottom pipe; 5. Drying component; 51. Air supply pipe; 52. One-way valve; 53. Micro piezoelectric pump; 54. Air guide tube; 55. Drying partition. DETAILED DESCRIPTION

[0030] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a person skilled in the art can propose a variety of interchangeable structural modes and implementation modes. Therefore, the following specific embodiments and drawings are only exemplary descriptions of the technical solution of the present invention and should not be regarded as the entire invention or as a limitation or restriction of the technical solution of the present invention.

[0031] According to one embodiment of the present invention, Figures 1-6 A respiratory muscle strength tester based on rehabilitation assessment is shown, comprising: an outer shell 1, an air injection port is opened on one side of the outer shell 1, a mouthpiece 11 is provided on the side of the air injection port, an exhalation cavity 13 and an inhalation cavity 14 are provided inside the outer shell 1, an arc-shaped cavity 15 is provided between the exhalation cavity 13 and the inhalation cavity 14, and a switching component 3 for switching the cavity is provided above the arc-shaped cavity 15;

[0032] The switching component 3 includes a micro motor 31 arranged inside the outer shell 1, and the output end of the micro motor 31 is fixedly connected to a rotating shaft 32. One end of the rotating shaft 32 passes through the arc cavity 15. The outer side of the rotating shaft 32 is fixedly connected to a sealing plate A34. The edge of the sealing plate A34 is provided with a sealing gasket. One end of the sealing plate A34 is in contact with the inner wall of the arc cavity 15. A strain gauge pressure sensor 131 is provided on the inner wall of the exhalation cavity 13. A gear 33 is fixedly connected to the outer side of the rotating shaft 32. The gear 33 is provided above the arc cavity 15. A movable plate 35 is provided on the upper surface of the arc cavity 15. A rack plate 351 is fixedly connected to one side of the movable plate 35. The plate 351 is meshed with the gear 33, one end of the movable plate 35 is fixedly connected to the extension rod 37, one end of the extension rod 37 is fixedly connected to the sealing plate B371, the upper surface of the exhalation chamber 13 is fixedly connected to the liquid storage box 38, one end of the extension rod 37 passes through one side of the liquid storage box 38, the sealing plate B371 is slidably connected to the inside of the liquid storage box 38, a liquid supply pipe 382 is provided on one side of the liquid storage box 38, a one-way pressure valve is provided at the connection between the liquid supply pipe 382 and the liquid storage box 38, the other end of the liquid supply pipe 382 passes through the exhalation chamber 13 and is provided with an atomizing nozzle. When performing the respiratory muscle strength test, exhale into the outer shell 1 through the mouthpiece 11. The outer side of the sealing plate A34 is respectively fitted with the arc cavity 15 and the inner wall of the outer shell 1, thereby achieving a sealed separation of the exhalation cavity 13 from the inhalation cavity 14 and the arc cavity 15. The strain gauge pressure sensor 131 is used to implement the MEP test. When the MIP test is required after the test, the micro motor 31 is used to drive the rotating shaft 32 and the sealing plate A34 to rotate clockwise, thereby achieving the effect of separating the inhalation cavity 14 from the exhalation cavity 13 and the arc cavity 15. During the rotation process, the gear 33 is used to rotate and drive the movable plate 35 and the rack plate 351 to move horizontally, thereby driving the extension rod 37 and the sealing plate B 371 is squeezed toward the liquid storage box 38, so that the alcohol inside the liquid storage box 38 is sprayed into the inner wall of the exhalation cavity 13 through the liquid supply pipe 382 and the atomizing nozzle by using the sealing plate B371, so as to achieve the effect of timely disinfection of the exhalation cavity 13 when switching the chamber. In the prior art, for example, the publication number: CN111513736A, the replacement of the blowing tube and the hose is proposed, and a circular plate, a ball and a spring are also provided inside, which is relatively expensive. After replacement, the corresponding position of the pressure sensor needs to be further cleaned, and the operation is relatively cumbersome. However, in this solution, only the mouthpiece needs to be replaced after the test, and the interior can be automatically disinfected.

[0033] In order to further solve the problems of inconvenience in comprehensive disinfection and dry ventilation of the device, according to one embodiment of the present invention, Figures 1-11It is shown that a limiting plate 36 is fixedly connected to the upper surface of the arc-shaped cavity 15, a limiting groove 361 is provided on one side of the limiting plate 36, and a limiting block 352 is fixedly connected to one side of the movable plate 35, and the limiting block 352 is slidably connected to the inside of the limiting groove 361. During the horizontal movement of the movable plate 35, the limiting block 352 slides inside the limiting groove 361. Under the limiting action of the limiting groove 361, the stability of the movement of the movable plate 35 is ensured.

[0034] The expiratory chamber 13 and the inspiratory chamber 14 have the same internal structure and are symmetrically arranged. By setting the expiratory chamber 13 and the inspiratory chamber 14 separately, they are used for exhalation and inhalation testing respectively, avoiding gas backflow interference and ensuring the accuracy of inhalation and expiratory pressure measurement. Compared with the single chamber for two-side testing in the prior art, this technical solution can block the diffusion of pollutants, facilitate targeted disinfection, and reduce the risk of cross infection.

[0035] A side door 12 is hingedly provided on one side of the outer shell 1, and a placement cavity is opened inside the outer shell 1. The side door 12 is arranged corresponding to the placement cavity, and a liquid storage tank 2 is arranged inside the placement cavity. A liquid infusion hose 381 is fixedly connected to one side of the liquid storage box 38, and a one-way pressure valve is provided at the connection between the liquid infusion hose 381 and the liquid storage box 38. The other end of the liquid infusion hose 381 is connected to the inside of the liquid storage tank 2. The liquid flow direction controlled by the one-way pressure valve corresponding to the liquid infusion hose 381 and the liquid supply pipe 382 and the liquid storage box 38 is opposite. In the process of switching the chamber, the sealing plate B371 is moved to generate negative pressure inside the liquid storage box 38, and the liquid infusion hose 381 is used to extract alcohol from the inside of the liquid storage tank 2 for replenishment.

[0036] The outer shell 1 is provided with a disinfection component 4 for synchronously disinfecting the inside of the exhalation cavity 13, the inhalation cavity 14 and the arc-shaped cavity 15. The disinfection component 4 includes a button 41 that passes through the upper surface of the outer shell 1. The bottom surface of the button 41 is fixedly connected to a bottom plate 42. One side of the bottom plate 42 is fixedly connected to a vertical connecting plate 43. One side of the vertical connecting plate 43 is fixedly connected to a connecting short plate 44. One side of the connecting short plate 44 is fixedly connected to an infusion branch 45. The output ends of the infusion branch 45 are respectively connected to the inside of the exhalation cavity 13, the inhalation cavity 14 and the arc-shaped cavity 15, and an atomizing nozzle is provided at the connected places. The bottom surface of the infusion branch 45 is fixedly connected to a volumetric pressing pump 46. The volumetric pressing A bottom tube 47 is fixedly connected to the bottom surface of the pump 46. When comprehensive disinfection is required, the button 41 is manually pressed. The button 41 drives the bottom plate 42, the vertical connecting plate 43 and the connecting short plate 44 to move downward, and then drives the infusion branch 45 to move downward, so that the volume inside the volumetric press pump 46 changes. The bottom tube 47 is used in conjunction with the volumetric press pump 46 to extract the alcohol inside the liquid storage tank 2 and discharge it into the exhalation cavity 13, the inhalation cavity 14 and the arc cavity 15 through the infusion branch 45 to achieve comprehensive disinfection. Compared with the prior art, which sprays alcohol inside after disassembling the accessories for disinfection, the present invention can spray alcohol into the internal cavity without disassembling, which is more convenient.

[0037] A spring A421 is fixedly connected between the bottom plate 42 and the inner wall of the outer shell 1. After each pressing, the spring A421 is used to assist the bottom plate 42 in returning to its original position.

[0038] A magnetic strip A341 is fixedly connected to one side of the sealing plate A34, and an exhaust groove A132 is provided on one side of the exhalation cavity 13, which passes through the exhalation cavity 13. The exhaust groove A132 corresponds to a hollow structure on the side of the exhalation cavity 13. An inner partition 133 is slidably connected to the inside of the exhalation cavity 13. A magnetic strip C135 is provided at one end of the inner partition 133. The magnetic strip C135 and the magnetic strip A341 repel each other magnetically. A spring B136 is fixedly connected to one end of the inner partition 133. One end of the spring B136 is fixedly connected to the inner wall of the outer shell 1. An exhaust groove is provided on one side of the inner partition 133. B134, the exhaust groove B134 is set corresponding to the exhaust groove A132. When using the exhalation chamber 13 for testing, the magnetic strip A341 and the magnetic strip C135 are magnetically repelled, thereby driving the inner partition 133 to move inside the exhalation chamber 13, and then the exhaust groove B134 and the exhaust groove A132 are misaligned, and the inner partition 133 is used to achieve testing in a sealed environment. When the sealing plate A34 is away, the exhaust groove B134 corresponds to the exhaust groove A132 again under the reset force of the spring B136, providing a channel for subsequent drying and exhaust.

[0039] An exhaust groove C151 is provided on one side of the arc-shaped cavity 15. One side of the arc-shaped cavity 15 is a hollow structure. An exhaust component 16 is provided inside the arc-shaped cavity 15. An arc-shaped plate 161 is slidably connected inside the exhaust component 16. An exhaust groove D162 is provided on one side of the arc-shaped plate 161. A magnetic strip B163 is fixedly connected to one side of the arc-shaped plate 161. The magnetic strip B163 is magnetically attracted to the magnetic strip A341. During the rotation of the sealing plate A34, the magnetic strip A341 and the magnetic strip B163 are magnetically attracted to each other to drive the arc-shaped plate 161 to move synchronously. When the inner wall of the arc-shaped cavity 15 needs to be dried and exhausted, the magnetic strip A341 is rotated so that one end of it points to the middle of the arc-shaped cavity 15. At this time, the exhaust groove D162 corresponds to the exhaust groove C151, and ventilation and drying can be achieved at this time.

[0040] The outside of the exhaust groove A132 and the exhaust groove C151 are both provided with ventilation pipes, one end of the ventilation pipes is connected to the outside world, and a filter is provided on one side of the ventilation pipes. Figure 3 As shown, the exhalation cavity 13, the inhalation cavity 14 and the arc cavity 15 are connected to the outside of the ventilation pipe, and the ventilation is discharged from the same opening, as shown in FIG. Figure 2 As shown in the opening at the upper end of the middle side door 12, the effect of synchronous exhaust is achieved.

[0041] A drying component 5 for introducing dry air into the outer shell 1 is provided inside the outer shell 1. The drying component 5 includes an air pipe 51 provided inside the outer shell 1, a one-way valve 52 provided at the upper end of the air pipe 51, a micro piezoelectric pump 53 provided on the outside of the air pipe 51, an air guide pipe 54 provided on the outside of the micro piezoelectric pump 53, a drying baffle 55 provided at one end of the air guide pipe 54, and one end of the air guide pipe 54 is connected to the outside. After the disinfection is completed, the micro piezoelectric pump 53 is turned on, and the air guide pipe 54 is used to dry the outside air through the drying baffle 55 and then discharge it into the air pipe 51, thereby entering the interior of the outer shell 1, thereby drying and removing the alcohol from the interior of the outer shell 1.

[0042] Specifically, when using a respiratory muscle strength tester for testing, the MEP test is performed after the mouthpiece 11 is installed. At this time, the outer side of the sealing plate A34 is respectively in contact with the arc cavity 15 and the inner wall of the outer shell 1, thereby achieving a sealed separation between the expiratory cavity 13, the inspiratory cavity 14, and the arc cavity 15. At the same time, the magnetic strips A341 and the magnetic strips C135 magnetically repel each other, thereby driving the inner partition 133 to move inside the expiratory cavity 13, thereby causing the exhaust groove B134 to be misaligned with the exhaust groove A132. The inner partition 133 is used to ensure that the test is performed in a sealed environment, and the MEP test is achieved through the expiratory cavity 13.

[0043] When the MEP test is completed and the MIP test needs to be performed, the micro motor 31 is used to drive the rotating shaft 32 and the sealing plate A34 to rotate clockwise, thereby achieving the effect of separating the inhalation chamber 14 from the exhalation chamber 13 and the arc-shaped chamber 15. During the rotation process, the gear 33 is used to rotate and drive the movable plate 35 and the rack plate 351 to move horizontally, thereby driving the extension rod 37 and the sealing plate B371 to be squeezed toward the liquid storage box 38, so that the sealing plate B371 is used to spray the alcohol inside the liquid storage box 38 into the inner wall of the exhalation chamber 13 through the liquid supply pipe 382 and the atomizing nozzle, thereby achieving the effect of timely disinfection of the exhalation chamber 13 when switching chambers. The MIP test is performed similarly to the MEP test;

[0044] After all tests are completed, the button 41 is manually pressed, and the button 41 drives the bottom plate 42, the vertical connecting plate 43 and the connecting short plate 44 to move downward, thereby driving the infusion branch 45 to move downward, causing the volume change inside the positive displacement pump 46, and utilizing the bottom tube 47 to cooperate with the positive displacement pump 46 to extract the alcohol inside the liquid storage tank 2 and discharge it into the exhalation cavity 13, the inhalation cavity 14 and the arc cavity 15 through the infusion branch 45 and the atomizing nozzle to achieve comprehensive disinfection. At this time, the micro motor 31 is controlled to drive the magnetic strip A341 to rotate so that one end of it points to the middle of the arc cavity 15. At this time, the exhaust groove D162 and the exhaust gas discharge groove D162 are aligned. The air groove C151 corresponds, and the sealing plate A34 moves away. The exhaust groove B134 corresponds to the exhaust groove A132 again under the reset force of the spring B136, and then the micro piezoelectric pump 53 is turned on, and the air guide tube 54 is used to dry the outside air through the drying partition 55 and discharge it into the air supply pipe 51, and then pass it into the outer shell 1, to achieve drying and removing alcohol from the inner part of the outer shell 1, and complete the disinfection work. Only the mouthpiece 11 needs to be replaced, the cost is low and the replacement speed is fast, which can prevent cross infection and facilitate disinfection, and ensure the accuracy, safety and ease of use of the respiratory muscle strength tester.

[0045] The technical scope of the present invention is not limited to the contents of the above description. Those skilled in the art can make various deformations and modifications to the above embodiments without departing from the technical idea of the present invention, and these deformations and modifications should all fall within the protection scope of the present invention.

Claims

1. A respiratory muscle strength tester based on rehabilitation assessment, characterized in that: include: An outer shell, wherein a gas injection port is provided on one side of the outer shell, a mouthpiece is provided on one side of the gas injection port, an exhalation cavity and an inhalation cavity are provided inside the outer shell, an arc cavity is provided between the exhalation cavity and the inhalation cavity, and a switching component for switching the cavity is provided above the arc cavity; The switching component includes a micromotor arranged inside the outer shell, the micromotor output end is fixedly connected to a rotating shaft, one end of the rotating shaft passes through the arc-shaped cavity, a sealing plate A is fixedly connected to the outside of the rotating shaft, a sealing gasket is provided on the edge of the sealing plate A, one end of the sealing plate A is in contact with the inner wall of the arc-shaped cavity, and a strain gauge pressure sensor is provided on the inner wall of the exhalation cavity; a gear is fixedly connected to the outside of the rotating shaft, the gear is arranged above the arc-shaped cavity, a movable plate is provided on the upper surface of the arc-shaped cavity, one side of the movable plate is fixedly connected to a rack plate, the rack plate is meshed with the gear, one end of the movable plate is fixedly connected to an extension rod, one end of the extension rod is fixedly connected to a sealing plate B, the upper surface of the exhalation cavity is fixedly connected to a liquid storage box, one end of the extension rod passes through one side of the liquid storage box, the sealing plate B is slidably connected to the inside of the liquid storage box, a liquid supply pipe is provided on one side of the liquid storage box, a one-way pressure valve is provided at the connection between the liquid supply pipe and the liquid storage box, and the other end of the liquid supply pipe passes through the exhalation cavity and is provided with an atomizing nozzle; A drying component for introducing dry air into the outer shell is provided inside the outer shell, and the drying component includes an air supply pipe provided inside the outer shell, a one-way valve provided at the upper end of the air supply pipe, a micro piezoelectric pump provided on the outside of the air supply pipe, an air guide pipe provided on the outside of the micro piezoelectric pump, a drying baffle provided at one end of the air guide pipe, and one end of the air guide pipe is connected to the outside.

2. The respiratory muscle strength tester based on rehabilitation assessment according to claim 1, characterized in that The upper surface of the arc-shaped cavity is fixedly connected to a limiting plate, one side of the limiting plate is provided with a limiting groove, one side of the movable plate is fixedly connected to a limiting block, and the limiting block is slidably connected to the inside of the limiting groove.

3. The respiratory muscle strength tester based on rehabilitation assessment according to claim 1, characterized in that The exhalation cavity and the inhalation cavity have the same internal structure and are symmetrically arranged.

4. The respiratory muscle strength tester based on rehabilitation assessment according to claim 1, characterized in that A side door is hingedly provided on one side of the outer shell, a placement cavity is opened inside the outer shell, the side door is arranged corresponding to the placement cavity, a liquid storage tank is provided inside the placement cavity, a liquid infusion hose is fixedly connected to one side of the liquid storage box, a one-way pressure valve is provided at the connection between the liquid infusion hose and the liquid storage box, and the other end of the liquid infusion hose is connected to the interior of the liquid storage tank.

5. The respiratory muscle strength tester based on rehabilitation assessment according to claim 4, characterized in that: A disinfection component for synchronously disinfecting the exhalation chamber, the inhalation chamber and the interior of the arc-shaped cavity is provided inside the outer shell, and the disinfection component includes a button that passes through the upper surface of the outer shell, and the bottom surface of the button is fixedly connected to a bottom plate, one side of the bottom plate is fixedly connected to a vertical connecting plate, one side of the vertical connecting plate is fixedly connected to a connecting short plate, one side of the connecting short plate is fixedly connected to an infusion branch pipe, the output end of the infusion branch pipe is respectively connected to the exhalation chamber, the inhalation chamber and the interior of the arc-shaped cavity, and an atomizing nozzle is provided at the connecting point, the bottom surface of the infusion branch pipe is fixedly connected to a volumetric press pump, and the bottom surface of the volumetric press pump is fixedly connected to a bottom pipe.

6. The respiratory muscle strength tester based on rehabilitation assessment according to claim 5, characterized in that: A spring A is fixedly connected between the bottom plate and the inner wall of the outer shell.

7. The respiratory muscle strength tester based on rehabilitation assessment according to claim 1, characterized in that: A magnetic strip A is fixedly connected to one side of the sealing plate A, and an exhaust groove A is provided on one side of the exhalation cavity, which runs through the exhalation cavity. The side of the exhalation cavity corresponding to the exhaust groove A is a hollow structure, and an inner partition is slidably connected to the inside of the exhalation cavity. A magnetic strip C is provided at one end of the inner partition, and the magnetic strip C and the magnetic strip A magnetically repel each other. A spring B is fixedly connected to one end of the inner partition, and one end of the spring B is fixedly connected to the inner wall of the outer shell. An exhaust groove B is provided on one side of the inner partition, and the exhaust groove B is provided corresponding to the exhaust groove A.

8. The respiratory muscle strength tester based on rehabilitation assessment according to claim 7, characterized in that: An exhaust groove C is provided on one side of the arc-shaped cavity, and one side of the arc-shaped cavity is a hollow structure. An exhaust component is provided inside the arc-shaped cavity, and an arc-shaped plate is slidably connected inside the exhaust component. An exhaust groove D is provided on one side of the arc-shaped plate, and a magnetic strip B is fixedly connected to one side of the arc-shaped plate. The magnetic strip B is magnetically attracted to the magnetic strip A.

9. The respiratory muscle strength tester based on rehabilitation assessment according to claim 8, characterized in that: A ventilation pipe is correspondingly provided on the outside of the exhaust groove A and the exhaust groove C. One end of the ventilation pipe is connected to the outside world, and a filter is provided on one side of the ventilation pipe.

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