Rehabilitation assessment-based respiratory muscle strength tester

Abstract

The invention provides a respiratory muscle strength tester based on rehabilitation evaluation, and relates to the technical field of medical instruments, the respiratory muscle strength tester comprises an outer shell, the outer shell is internally provided with an expiration cavity and an inspiration cavity, a double-cavity testing structure formed by combining the expiration cavity and the inspiration cavity is adopted, and during testing, separate testing is carried out, so that pollutant diffusion is blocked; meanwhile, targeted disinfection is facilitated, the risk of cross infection is reduced, the sealing effect of a test cavity is guaranteed through a sealing plate A and a magnetic strip A when an expiration test is conducted through a switching part, targeted enhanced disinfection work is conducted on the expiration cavity under the cooperation effect of a gear and a rack plate when the cavity is switched, and after the expiration test and the inspiration test are both finished, the sealing effect of the test cavity is guaranteed. All the chambers are comprehensively disinfected, dried and exhausted through the disinfection component and the drying component, only the mouthpiece needs to be replaced when the mouthpiece is used again, the manufacturing cost is low, the replacement speed is high, and the purposes of preventing cross infection and facilitating disinfection are achieved.

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 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, a control button and a control detection structure. The panel is equipped with a display screen and a control button. 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 frame. The control detection structure is equipped with an exhaust structure. The control detection structure is used for the detection of the exhaust structure. The respiratory muscle strength can be detected 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 strip and a docking port. The chip is installed on the circuit board. The control detection structure is realized by setting the control detection structure. However, the first docking component and the second docking component of the structure still need to be replaced after multiple uses. The internal displacement ball seat, the limit sleeve seat and the pull rope and other 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 part requires the auxiliary fixing of the 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 prior art. 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 it is troublesome to replace accessories.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a respiratory muscle strength tester based on rehabilitation assessment, comprising: an outer shell, a gas injection port is opened on one side of the outer shell, a mouthpiece is arranged on one side of the gas injection port, an exhalation cavity and an inhalation cavity are arranged inside the outer shell, an arc cavity is arranged between the exhalation cavity and the inhalation cavity, and a switching component for switching the cavity is arranged above the arc cavity; The switching component includes a micro motor disposed inside the outer housing. The output end of the micro motor is fixedly connected to a rotating shaft. One end of the rotating shaft penetrates through the arc-shaped cavity. A sealing plate A is fixedly connected to the outer side of the rotating shaft. A sealing gasket is provided at the edge of the sealing plate A. One end of the sealing plate A is attached to the inner wall of the arc-shaped cavity. A strain pressure sensor is provided on the inner wall of the exhalation cavity. A gear is fixedly connected to the outer side of the rotating shaft. The gear is disposed above the arc-shaped cavity. A movable plate is provided on the upper surface of the arc-shaped cavity. A rack plate is fixedly connected to one side of the movable 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. A liquid storage box is fixedly connected to the upper surface of the exhalation cavity. One end of the extension rod penetrates through one side of the liquid storage box. The sealing plate B is slidably connected inside 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 of the liquid supply pipe and the liquid storage box. The other end of the liquid supply pipe penetrates through the exhalation cavity and is provided with an atomizing nozzle.

[0006] Further, a limiting plate is fixedly connected to the upper surface of the arc-shaped cavity. A limiting groove is opened on one side of the limiting plate. A limiting block is fixedly connected to one side of the movable plate. The limiting block is slidably connected inside the limiting groove.

[0007] Further, the internal structures of the exhalation cavity and the inhalation cavity are the same and symmetrically arranged.

[0008] Further, a side door is hinged on one side of the outer housing. A placement cavity is opened inside the outer housing. The side door corresponds to the placement cavity. A liquid storage tank is provided inside the placement cavity. A liquid replenishing hose is fixedly connected to one side of the liquid storage box. A one-way pressure valve is provided at the connection of the liquid replenishing hose and the liquid storage box. The other end of the liquid replenishing hose is communicated with the inside of the liquid storage tank.

[0009] Further, a disinfection component for simultaneously disinfecting the inside of the exhalation cavity, the inhalation cavity, and the arc-shaped cavity is provided inside the outer housing. The disinfection component includes a button penetrating through the upper surface of the outer housing. A bottom plate is fixedly connected to the bottom surface of the button. A vertical connecting plate is fixedly connected to one side of the bottom plate. A connecting short plate is fixedly connected to one side of the vertical connecting plate. An infusion branch pipe is fixedly connected to one side of the connecting short plate. The output ends of the infusion branch pipe are respectively communicated with the inside of the exhalation cavity, the inhalation cavity, and the arc-shaped cavity, and atomizing nozzles are provided at the communication positions. A positive displacement pressing pump is fixedly connected to the bottom surface of the infusion branch pipe. A bottom pipe is fixedly connected to the bottom surface of the positive displacement pressing pump.

[0010] Further, a spring A is fixedly connected between the bottom plate and the inner wall of the outer housing.

[0011] Further, a magnetic strip A is fixedly connected to one side of the sealing plate A. An exhaust groove A penetrating through the exhalation cavity is opened on one side of the exhalation cavity. The side of the exhalation cavity corresponding to the exhaust groove A is a hollow structure. An inner partition plate is slidably connected inside the exhalation cavity. A magnetic strip C is provided at one end of the inner partition plate. The magnetic strip C is magnetically repulsive to the magnetic strip A. A spring B is fixedly connected to one end of the inner partition plate. One end of the spring B is fixedly connected to the inner wall of the outer housing. An exhaust groove B is opened on one side of the inner partition plate. The exhaust groove B is arranged corresponding to the exhaust groove A.

[0012] Further, an exhaust groove C is provided on one side of the arc-shaped cavity. One side of the arc-shaped cavity is a hollow structure. An exhaust assembly is arranged inside the arc-shaped cavity. An arc-shaped plate is slidably connected inside the exhaust assembly. An exhaust groove D is provided on one side of the arc-shaped plate. A magnetic strip B is fixedly connected to one side of the arc-shaped plate, and the magnetic strip B is magnetically attracted to the magnetic strip A.

[0013] Further, ventilation pipes are correspondingly arranged outside the exhaust groove A and the exhaust groove C. One end of each ventilation pipe is connected to the outside, and a filter screen is arranged on one side of each ventilation pipe.

[0014] Further, a drying component for introducing dry air into the housing is arranged inside the housing. The drying component includes an air delivery pipe arranged inside the housing. A one-way valve is arranged at the upper end of the air delivery pipe. A micro piezoelectric pump is arranged outside the air delivery pipe. An air guide pipe is arranged outside the micro piezoelectric pump. A drying partition is arranged at one end of the air guide pipe, and one end of the air guide pipe is communicated with the outside.

[0015] Compared with the prior art, the beneficial effects of the present invention include: adopting a dual-chamber test structure combined with an exhalation chamber and an inhalation chamber, which can be tested separately during the test, blocking the diffusion of pollutants while facilitating targeted disinfection to reduce the risk of cross-infection. Through the setting of the switching component, when performing the exhalation test, the sealing plate A and the magnetic strip A are used to ensure the sealing effect of the test chamber. At the same time, when switching the chamber, under the cooperation of the gear and the rack plate, targeted enhanced disinfection work is carried out on the exhalation chamber. After both the exhalation and inhalation tests are completed, all chambers are comprehensively disinfected and dried and exhausted through the disinfection component and the drying component. Only the mouthpiece needs to be replaced, with low manufacturing cost and fast replacement speed, achieving the effect of preventing cross-infection and facilitating disinfection, and ensuring the accuracy, safety, and ease of use of the respiratory muscle strength tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The disclosure of the present invention will be described with reference to the accompanying drawings. It should be understood that the drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings, the same reference numerals are used to refer to the same components. Among them: Figure 1 Schematically shows the overall structure diagram of a respiratory muscle strength tester proposed according to an embodiment of the present invention Figure 1 ; Figure 2 Schematically shows the overall structure diagram of a respiratory muscle strength tester proposed according to an embodiment of the present invention Figure 2 ; Figure 3 Schematically shows the internal structure diagram of a respiratory muscle strength tester proposed according to an embodiment of the present invention; Figure 4Schematically shows the switching component and the internal structure schematic diagram of the exhalation cavity according to an embodiment of the present invention; Figure 5 Schematically shows the movable plate and the limiting plate structure schematic diagram according to an embodiment of the present invention; Figure 6 Schematically shows the internal structure schematic diagram of the liquid storage box according to an embodiment of the present invention; Figure 7 Schematically shows the internal structure schematic diagram of the arc-shaped cavity according to an embodiment of the present invention; Figure 8 Schematically shows the exhaust assembly structure schematic diagram according to an embodiment of the present invention; Figure 9 Schematically shows the drying component structure schematic diagram according to an embodiment of the present invention; Figure 10 Schematically shows the disinfection component structure schematic diagram according to an embodiment of the present invention; Figure 11 Schematically shows the partition structure schematic diagram according to an embodiment of the present invention.

[0017] Reference numerals in the figure: 1, outer housing; 11, mouthpiece; 12, side door; 13, exhalation cavity; 131, strain pressure sensor; 132, exhaust groove A; 133, inner partition; 134, exhaust groove B; 135, magnetic strip C; 136, spring B; 14, inhalation cavity; 15, arc-shaped cavity; 151, exhaust groove C; 16, exhaust assembly; 161, arc-shaped plate; 162, exhaust groove 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, limiting block; 36, limiting plate; 361, limiting groove; 37, extension rod; 371, sealing plate B; 38, liquid storage box; 381, replenishing liquid 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, positive displacement pressing pump; 47, bottom pipe; 5, drying component; 51, air delivery pipe; 52, one-way valve; 53, micro piezoelectric pump; 54, air guide pipe; 55, drying partition. Detailed implementation manners

[0018] It is easily understood that according to the technical solution of the present invention, without changing the essence of the present invention, those of ordinary skill in the art can propose various interchangeable structural forms and implementation methods. Therefore, the following specific embodiments and drawings are only illustrative descriptions of the technical solution of the present invention, and should not be regarded as all of the present invention or as a limitation or restriction on the technical solution of the present invention.

[0019] According to an embodiment of the present invention in combination with Figures 1-6 shown, a respiratory muscle strength tester based on rehabilitation assessment includes: a housing 1, an air injection port is provided on one side of the housing 1, a mouthpiece 11 is provided on one side of the air injection port, an exhalation chamber 13 and an inhalation chamber 14 are provided inside the housing 1, an arc chamber 15 is provided between the exhalation chamber 13 and the inhalation chamber 14, and a switching component 3 for switching chambers is provided above the arc chamber 15; The switching component 3 includes a micro motor 31 disposed inside the outer housing 1. A rotating shaft 32 is fixedly connected to the output end of the micro motor 31. One end of the rotating shaft 32 penetrates through the arc-shaped cavity 15. A sealing plate A34 is fixedly connected to the outer side of the rotating shaft 32. A sealing gasket is arranged at the edge of the sealing plate A34. One end of the sealing plate A34 is attached to the inner wall of the arc-shaped cavity 15. A strain type pressure sensor 131 is arranged 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 arranged above the arc-shaped cavity 15. A movable plate 35 is arranged on the upper surface of the arc-shaped cavity 15. A rack plate 351 is fixedly connected to one side of the movable plate 35. The rack plate 351 is meshed with the gear 33. One end of the movable plate 35 is fixedly connected to an extension rod 37. One end of the extension rod 37 is fixedly connected to a sealing plate B371. A liquid storage box 38 is fixedly connected to the upper surface of the exhalation cavity 13. One end of the extension rod 37 penetrates through one side of the liquid storage box 38. The sealing plate B371 is slidably connected inside the liquid storage box 38. A liquid supply pipe 382 is arranged on one side of the liquid storage box 38. A one-way pressure valve is arranged at the connection between the liquid supply pipe 382 and the liquid storage box 38. The other end of the liquid supply pipe 382 penetrates through the exhalation cavity 13 and is provided with an atomizing nozzle. When performing a respiratory muscle strength test, exhale into the inside of the outer housing 1 through the mouthpiece 11. At this time, the outer side of the sealing plate A34 is respectively attached to the inner wall of the arc-shaped cavity 15 and the outer housing 1, so as to realize the sealed separation of the exhalation cavity 13 from the inhalation cavity 14 and the arc-shaped cavity 15, and use the strain type pressure sensor 131 to realize the MEP test. When it is necessary to perform the MIP test after the test is completed, use the micro motor 31 to drive the rotating shaft 32 and the sealing plate A34 to rotate clockwise, so as to realize the effect of separating the inhalation cavity 14 from the exhalation cavity 13 and the arc-shaped cavity 15. During the rotation process, use the rotation of the gear 33 to drive the movable plate 35 and the rack plate 351 to move horizontally, so as to drive the extension rod 37 and the sealing plate B371 to squeeze towards the liquid storage box 38, so as to spray the alcohol inside the liquid storage box 38 onto the inner wall of the exhalation cavity 13 through the liquid supply pipe 382 and the atomizing nozzle by using the sealing plate B371, realizing the effect of timely disinfecting the exhalation cavity 13 when switching the chamber. In the prior art, for example, the publication number: CN111513736A, proposes to replace the blowing tube and the hose, and a round plate, a spherical ball and a spring are also arranged inside it, with a relatively high cost. And after the replacement, it is also necessary to further clean the corresponding position of the pressure sensor, and the operation is relatively cumbersome. While in this solution, only the mouthpiece needs to be replaced after the test is completed, and the inside can be automatically disinfected.

[0020] To further solve the problems of inconvenient comprehensive disinfection and dry ventilation existing in the present device, according to an embodiment of the present invention in combination with 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 formed on one side of the limiting plate 36. A limiting block 352 is fixedly connected to one side of the movable plate 35. 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.

[0021] The internal structures of the exhalation cavity 13 and the inhalation cavity 14 are the same and symmetrically arranged. By separately arranging the exhalation cavity 13 and the inhalation cavity 14, they are respectively used for exhalation and inhalation tests, avoiding gas reflux interference, ensuring the accuracy of inhalation and exhalation pressure measurement. Compared with the prior art in which a single chamber is used for both-sided tests, the technical solution of the present invention can block the diffusion of pollutants, facilitate targeted disinfection, and reduce the risk of cross-infection.

[0022] A side door 12 is hingedly arranged on one side of the outer shell 1. A placement cavity is formed inside the outer shell 1. The side door 12 corresponds to the placement cavity. A liquid storage tank 2 is arranged inside the placement cavity. A liquid replenishing hose 381 is fixedly connected to one side of the liquid storage box 38. A one-way pressure valve is arranged at the connection of the liquid replenishing hose 381 and the liquid storage box 38. The other end of the liquid replenishing 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 replenishing hose 381, the supply pipe 382 and the liquid storage box 38 is opposite. During the process of switching chambers, the movement of the sealing plate B371 is used to generate negative pressure inside the liquid storage box 38, and alcohol is extracted from the inside of the liquid storage tank 2 through the liquid replenishing hose 381 for supplementation.

[0023] A disinfection component 4 for simultaneously disinfecting the inside of the exhalation cavity 13, the inhalation cavity 14 and the arc-shaped cavity 15 is arranged inside the outer shell 1. The disinfection component 4 includes a button 41 penetrating the upper surface of the outer shell 1. The bottom surface of the button 41 is fixedly connected to a bottom plate 42. A vertical connecting plate 43 is fixedly connected to one side of the bottom plate 42. A connecting short plate 44 is fixedly connected to one side of the vertical connecting plate 43. A liquid infusion branch pipe 45 is fixedly connected to one side of the connecting short plate 44. The output ends of the liquid infusion branch pipe 45 are respectively connected to the inside of the exhalation cavity 13, the inhalation cavity 14 and the arc-shaped cavity 15, and atomizing nozzles are arranged at the connection parts. A volumetric pressing pump 46 is fixedly connected to the bottom surface of the liquid infusion branch pipe 45. A bottom pipe 47 is fixedly connected to the bottom surface of the volumetric pressing 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, thereby driving the liquid infusion branch pipe 45 to move downward, causing a volume change inside the volumetric pressing pump 46. The alcohol inside the liquid storage tank 2 is pumped out by the bottom pipe 47 in cooperation with the volumetric pressing pump 46 and discharged into the exhalation cavity 13, the inhalation cavity 14 and the arc-shaped cavity 15 through the liquid infusion branch pipe 45 to achieve comprehensive disinfection. Compared with the prior art in which the accessories are disassembled and alcohol is sprayed inside for disinfection, the present invention can spray alcohol inside the internal chambers without disassembly, which is more convenient.

[0024] 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 to reset.

[0025] A magnetic strip A341 is fixedly connected to one side of the sealing plate A34. An exhaust groove A132 penetrating through the exhalation cavity 13 is opened on one side of the exhalation cavity 13. The side of the exhalation cavity 13 corresponding to the exhaust groove A132 is a hollow structure. An inner partition plate 133 is slidably connected inside the exhalation cavity 13. A magnetic strip C135 is arranged at one end of the inner partition plate 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 plate 133. One end of the spring B136 is fixedly connected to the inner wall of the outer shell 1. An exhaust groove B134 is opened on one side of the inner partition plate 133. The exhaust groove B134 is arranged corresponding to the exhaust groove A132. When the exhalation cavity 13 is used for testing, the magnetic strip A341 and the magnetic strip C135 repel each other magnetically, so as to drive the inner partition plate 133 to move inside the exhalation cavity 13, and then make the exhaust groove B134 and the exhaust groove A132 misaligned. The inner partition plate 133 is used to realize the test in a sealed environment. When 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, providing a channel for subsequent drying and exhausting.

[0026] An exhaust groove C151 is opened on one side of the arc-shaped cavity 15. The side of the arc-shaped cavity 15 is a hollow structure. An exhaust component 16 is arranged inside the arc-shaped cavity 15. An arc-shaped plate 161 is slidably connected inside the exhaust component 16. An exhaust groove D162 is opened 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 and the magnetic strip A341 attract each other magnetically. During the rotation of the sealing plate A34, the magnetic strip A341 and the magnetic strip B163 attract each other magnetically to drive the arc-shaped plate 161 to move synchronously. When it is necessary to dry and exhaust the inner wall of the arc-shaped cavity 15, 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 realized at this time.

[0027] Ventilation pipes are correspondingly arranged outside both the exhaust groove A132 and the exhaust groove C151. One end of the ventilation pipe is communicated with the outside. A filter screen is arranged on one side of the ventilation pipe, as Figure 3 shown. Ventilation pipes are externally connected to the outside of the exhalation cavity 13, the inhalation cavity 14 and the arc-shaped cavity 15. The ventilation exhausts from the same opening, as Figure 2 shown by the opening shown at the upper end of the middle side door 12, so as to achieve the effect of synchronous exhaust.

[0028] Inside the outer casing 1, a drying component 5 for introducing dry air into the interior of the outer casing 1 is provided. The drying component 5 includes an air delivery pipe 51 disposed inside the outer casing 1. A one-way valve 52 is provided at the upper end of the air delivery pipe 51. A micro piezoelectric pump 53 is disposed outside the air delivery pipe 51. A gas guide pipe 54 is disposed outside the micro piezoelectric pump 53. One end of the gas guide pipe 54 is provided with a drying partition plate 55. One end of the gas guide pipe 54 communicates with the outside. After the disinfection is completed, the micro piezoelectric pump 53 is turned on, and the outside air is dried by the drying partition plate 55 through the gas guide pipe 54 and then discharged into the interior of the air delivery pipe 51, so as to be introduced into the interior of the outer casing 1, realizing the drying and removal of alcohol inside the outer casing 1.

[0029] Specifically, when using the respiratory muscle strength tester for testing, after installing the mouthpiece 11, the MEP test is carried out. At this time, the outer side of the sealing plate A 34 is respectively in contact with the arc-shaped cavity 15 and the inner wall of the outer casing 1, so as to realize the sealing separation of the exhalation cavity 13 from the inhalation cavity 14 and the arc-shaped cavity 15. At the same time, the magnetic strip A 341 and the magnetic strip C 135 are magnetically repulsive, so as to drive the inner partition plate 133 to move inside the exhalation cavity 13, and then make the exhaust groove B 134 and the exhaust groove A 132 misaligned. The inner partition plate 133 is used to ensure the test under a sealed environment, and the MEP test is realized through the exhalation cavity 13. When the MIP test needs to be carried out after the MEP test is completed, the micro motor 31 is used to drive the rotating shaft 32 and the sealing plate A 34 to rotate clockwise, so as to realize the effect of separating the inhalation cavity 14 from the exhalation cavity 13 and the arc-shaped cavity 15. During the rotation process, the gear 33 rotates to drive the movable plate 35 and the rack plate 351 to move horizontally, so as to drive the extension rod 37 and the sealing plate B 371 to squeeze towards the liquid storage box 38, so that the alcohol inside the liquid storage box 38 is sprayed onto the inner wall of the exhalation cavity 13 through the liquid supply pipe 382 and the atomizing nozzle by the sealing plate B 371, realizing the effect of timely disinfecting the exhalation cavity 13 when switching chambers. The MIP test is carried out similarly to the MEP test. After all the tests are completed, manually press the button 41. 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 pipe 45 to move downward, causing a volume change inside the positive displacement pressing pump 46. The bottom pipe 47 is used in cooperation with the positive displacement pressing pump 46 to pump out 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 pipe 45 and the atomizing nozzle, achieving comprehensive disinfection. At this time, control the micro motor 31 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 corresponds to the exhaust groove C151, and at the same time, the sealing plate A34 moves away. The exhaust groove B134 corresponds to the exhaust groove A132 again under the restoring force of the spring B136. Subsequently, turn on the micro piezoelectric pump 53, and use the air guide pipe 54 to dry the outside air through the drying partition 55 and then discharge it into the air delivery pipe 51, thereby introducing it into the outer housing 1 to achieve drying and removing alcohol inside the outer housing 1 and completing the disinfection work. Only the mouthpiece 11 needs to be replaced, with low manufacturing cost and fast replacement speed, achieving the effect of preventing cross-infection and facilitating disinfection, and ensuring the accuracy, safety and ease of use characteristics of the respiratory muscle strength tester.

[0030] The technical scope of the present invention is not limited to the content described above. 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, Comprising: A housing body, on one side of which there is an air injection port, on one side of the air injection port there is a mouthpiece, inside the housing body there is an exhalation chamber and an inhalation chamber, between the exhalation chamber and the inhalation chamber there is an arc chamber, and above the arc chamber there is a switching component for switching chambers; The switching component includes a micro motor arranged inside the housing body, the output end of the micro motor is fixedly connected with a rotating shaft, one end of the rotating shaft penetrates through the arc chamber, a sealing plate A is fixedly connected to the outer side of the rotating shaft, a sealing gasket is arranged on the edge of the sealing plate A, one end of the sealing plate A fits with the inner wall of the arc chamber, a strain type pressure sensor is arranged on the inner wall of the exhalation chamber, a gear is fixedly connected to the outer side of the rotating shaft, the gear is arranged above the arc chamber, a movable plate is arranged on the upper surface of the arc chamber, a rack plate is fixedly connected to one side of the movable plate, the rack plate is meshed and connected with the gear, an extension rod is fixedly connected to one end of the movable plate, a sealing plate B is fixedly connected to one end of the extension rod, a liquid storage box is fixedly connected to the upper surface of the exhalation chamber, one end of the extension rod penetrates through one side of the liquid storage box, and the sealing plate B is slidably connected inside the liquid storage box, a liquid supply pipe is arranged on one side of the liquid storage box, a one-way pressure valve is arranged at the connection of the liquid supply pipe and the liquid storage box, and the other end of the liquid supply pipe penetrates through the exhalation chamber and is provided with an atomizing nozzle; A drying component for introducing dry air into the housing body is arranged inside the housing body, the drying component includes an air delivery pipe arranged inside the housing body, a one-way valve is arranged at the upper end of the air delivery pipe, a micro piezoelectric pump is arranged on the outer side of the air delivery pipe, a guide pipe is arranged on the outer side of the micro piezoelectric pump, one end of the guide pipe is provided with a drying partition plate, and one end of the guide pipe is communicated with the outside.

2. The respiratory muscle strength tester based on rehabilitation assessment according to claim 1, wherein A limiting plate is fixedly connected to the upper surface of the arc chamber, a limiting groove is opened on one side of the limiting plate, a limiting block is fixedly connected to one side of the movable plate, and the limiting block is slidably connected inside the limiting groove.

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

4. The respiratory muscle strength tester based on rehabilitation assessment according to claim 1, wherein A side door is hinged on one side of the housing body, a placement chamber is opened inside the housing body, the side door corresponds to the placement chamber, a liquid storage tank is arranged inside the placement chamber, a liquid replenishing hose is fixedly connected to one side of the liquid storage box, a one-way pressure valve is arranged at the connection of the liquid replenishing hose and the liquid storage box, and the other end of the liquid replenishing hose is communicated with the inside of the liquid storage tank.

5. The respiratory muscle strength tester based on rehabilitation assessment according to claim 4, wherein A disinfection component for synchronously disinfecting the inside of the exhalation chamber, the inhalation chamber and the arc chamber is arranged inside the housing body, the disinfection component includes a button penetrating through the upper surface of the housing body, a bottom plate is fixedly connected to the bottom surface of the button, a vertical connecting plate is fixedly connected to one side of the bottom plate, a connecting short plate is fixedly connected to one side of the vertical connecting plate, an infusion branch pipe is fixedly connected to one side of the connecting short plate, the output ends of the infusion branch pipe are respectively communicated with the inside of the exhalation chamber, the inhalation chamber and the arc chamber and atomizing nozzles are arranged at the communication positions, a positive displacement pressing pump is fixedly connected to the bottom surface of the infusion branch pipe, and a bottom pipe is fixedly connected to the bottom surface of the positive displacement pressing pump.

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 housing body.

7. The respiratory muscle strength tester based on rehabilitation assessment according to claim 1, characterized in that, One side of the sealing plate A is fixedly connected with a magnetic strip A. One side of the exhalation cavity is provided with an exhaust groove A penetrating through the exhalation cavity. The side of the exhalation cavity corresponding to the exhaust groove A is a hollow structure. An inner partition is slidably connected inside the exhalation cavity. One end of the inner partition is provided with a magnetic strip C, and the magnetic strip C is magnetically repulsive to the magnetic strip A. One end of the inner partition is fixedly connected with a spring B, and one end of the spring B is fixedly connected with the inner wall of the housing body. An exhaust groove B is provided on one side of the inner partition, and the exhaust groove B is correspondingly arranged with the exhaust groove A.

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

9. The respiratory muscle strength tester based on rehabilitation assessment according to claim 8, wherein, Ventilation pipes are correspondingly arranged on the outer sides of the exhaust groove A and the exhaust groove C. One end of the ventilation pipe is communicated with the outside, and a filter screen is arranged on one side of the ventilation pipe.

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