A respiratory system muscle trainer

Abstract

This invention discloses a respiratory system muscle trainer, comprising an inhalation module, an exhalation module, and a set of shared accessories required for both modules. The inhalation module mainly includes: a resistance cap, a resistance cap seat, and a resistance spring to generate inhalation resistance; a rack and pinion spring adjustment device or a roller device to adjust the magnitude of inhalation resistance; a tactile switch to power an audio-visual device displaying a preset airway pressure endpoint; a gas delivery pipe and a cotton pad; an oxygen delivery interface and gas path; a threaded tube; and other parts related to gas sealing. The exhalation module mainly consists of a sealing cap, a piston, a compression spring, an elastic resistance adjustment element, and an exhalation resistance T-tube to generate exhalation resistance. The shared accessories set mainly comprises a human-machine interface, an audio-visual display device, a differential pressure sensor and a display screen, and a battery. This invention can significantly enhance the contraction ability of the user's upper and lower respiratory tract related muscle groups, maintain muscle tone, and is also highly interesting and easy to promote.

Description

Technical Field

[0001] This invention relates to a medical rehabilitation device, specifically, a device suitable for exercising the muscles of the upper and lower respiratory system. Background Technology

[0002] Chronic respiratory diseases are now one of the four major chronic diseases seriously threatening national health. Many chronic respiratory diseases, such as chronic obstructive pulmonary disease (COPD), severe pulmonary tuberculosis, pulmonary fibrosis, and obstructive sleep apnea syndrome, cause severe lung function impairment, leading to a decline in patients' quality of life. Because the causes of these diseases are difficult to eliminate, they are difficult to cure once contracted. Hoping to improve patients' quality of life through treatment that removes the cause is almost impossible. The only option is to slow the progression of the disease through medication or other technical means. One important technical means is respiratory function training—using certain devices to exercise the patient's respiratory-related muscle groups, strengthening the respiratory function of both the upper and lower parts of the respiratory system, and to some extent compensating for the function lost due to damage to respiratory tissues, thereby improving the patient's quality of life. Besides chronic lung diseases, other non-lung-related conditions can also lead to reduced lung capacity and decreased lung function. These include upper abdominal surgery, prolonged bed rest, stroke, and brain injury. Weakened central or peripheral muscle function results in reduced respiratory amplitude and ventilation, leading to insufficient oxygen supply to the body's tissues and organs. This causes a series of clinical manifestations and decreased immunity, further triggering more health problems and creating a vicious cycle. The underlying causes of these patients are difficult to eliminate in a short period, and expecting lung function to recover naturally is unrealistic. Therefore, these patients also need external assistance to strengthen respiratory muscle function, increase lung ventilation, ensure adequate oxygen supply to the body's tissues and organs, and break the vicious cycle.

[0003] The most common and effective technique for enhancing respiratory function, including lung function, is the use of respiratory trainers. Currently, there are many respiratory trainers on the market, such as the imported PowerBreathe, and domestic brands like Shengchang SC-A, Shuhule, and Kefu respiratory function trainers, as well as older single-ball and three-ball trainers. There are also some excellent ideas that have been patented but not yet commercialized, such as the "Respiratory Muscle Trainer" (patent number 201320347213.2) and the "A Parallel Inspiratory and Expiration Respiratory Trainer" (patent number 201721364033.X). These devices all operate on the same or similar basic principle: they all use respiratory muscles to counteract the resistance of the external airway during inhalation and exhalation, thereby training the respiratory muscles. There are various methods to create resistance in the external airway; in summary, the basic materials used are mainly of two types: elastic elements and liquids, with elastic elements being the most frequently used.

[0004] The fundamental principles for making exercise equipment appealing, desirable, and enjoyable for the general public are twofold: effectiveness and enjoyment, followed by affordability. The basic working principle of this invention is similar to the aforementioned products or patents, requiring the user's upper and lower respiratory tract muscles to overcome external airway resistance to achieve the purpose of exercising these muscles. However, the external airway resistance generation and adjustment device used in this invention differs from all currently available and unavailable products, making the generation and adjustment of external airway resistance more precise and linear; furthermore, this invention is more enjoyable and effective. Summary of the Invention

[0005] The problem to be solved by the present invention is to provide a respiratory system muscle trainer that is effective and fun, addressing the above-mentioned deficiencies.

[0006] This invention consists of three main parts: an inhalation module, an exhalation module, and a set of common accessories used in both modules.

[0007] The inhalation module mainly consists of the following components: a resistance cover, a resistance cover seat, and a resistance spring that generate inhalation resistance; a rack and pinion spring adjustment device or a roller device for adjusting the magnitude of inhalation resistance; a tactile switch that provides power to the sound and light device that displays the preset airway pressure endpoint; gas delivery pipes and cotton pads; oxygen delivery interfaces and gas passages; threaded pipes and other parts related to gas sealing.

[0008] The exhalation module mainly consists of a sealing cap that generates exhalation resistance, a piston, a compression spring, an elastic resistance adjustment element, and an exhalation resistance T-tube.

[0009] The common accessory set mainly consists of the following components: a mouthpiece, nasal mask, and oronasal mask that come into contact with the mouth and nose for inhalation or exhalation (these three components are collectively referred to as the human-machine interface); an audio-visual display device (with a pre-installed miniature speaker voice module and LED light) for displaying the airway pressure value at the preset end point of inhalation or exhalation; a miniature bidirectional differential pressure sensor and display screen for displaying the airway pressure value during inhalation or exhalation in real time; and a battery that powers these electronic devices.

[0010] The intake module, along with most common accessories, is housed in a multi-tiered, cylindrical box called the main unit. The human-machine interface and threaded tubing are not included in this machine.

[0011] The specific technical solution is as follows: A respiratory system muscle trainer includes a main unit, which is divided into 5 layers. The first layer, counted from top to bottom, is an electronic box, mainly used to install electronic components. The fifth layer is a base. The third layer, which serves as a connecting layer, is a circular plate-like structure of a certain thickness, called a connecting plate. The first, third, and fifth layers are connected and fixed by 3-4 hollow cylindrical connecting columns. The connecting columns are prefabricated as an integral part of the above three layers. The upper end of the connecting column stops at and opens into the electronic box, and the lower end stops at and opens into the base. The connecting columns not only serve the function of connection and fixation, but also serve the function of conveying oxygen and passing through wires. The second layer is above the connecting plate, used to install the intake resistance generating component, the gas delivery pipe, and the drug gas generating component. The fourth layer is below the connecting plate, used to install the intake resistance adjusting component.

[0012] The electronic box is a hollow, flat, round box with a differential pressure sensor installed inside. It has a removable cover on top and a pre-installed annular soft sealing ring on the outer wall of the bottom. A large hole in the center of the ring serves as the air inlet for the gas delivery tube. This inlet is not connected to the box's interior but is integrated with the pre-installed gas delivery tube inside the box. Around this inlet are three small openings that connect to the inside of the electronic box via short tubes. These three short tubes are respectively the pressure sensor measurement interface, the oxygen interface inside the box, and the exhalation measurement tube. The annular surface of the electronic box has a short tubular gas delivery tube outlet for gas delivery, a display screen mounting hole, and several small holes serving as pressure balancing windows.

[0013] The upper half of the second layer is equipped with a drug gas generator, which is funnel-shaped. The diameter of the upper flared end of the drug gas generator is the same as that of the soft sealing ring at the bottom of the electronic box. The inner cavity of the drug gas generator contains a cotton pad retainer and a cotton pad fixing clip for installing the cotton pad and supporting the filter screen. Below the drug gas generator is a gas distributor that looks like a gyroscope. Below the gas distributor is a short gas delivery pipe. The lower end of the short gas delivery pipe is pre-installed with a sealing gasket and an O-ring seal of the drug gas generator. After the upper flared end of the drug gas generator comes into close contact with the soft sealing ring at the bottom of the electronic box, it forms a relatively closed small space with only upper and lower channels, called the drug gas chamber. The drug gas chamber communicates with the inner cavity of the electronic box through three short pipe openings pre-made at the bottom of the electronic box.

[0014] The lower half of the second layer is equipped with an intake resistance generating component, which consists of: a resistance cover, a tension spring under the resistance cover, a tension spring seat and a tension spring rod, a bushing at one end of the resistance cover, a resistance cover seat, a shaft support, a tactile switch, a switch mounting plate, a circular resistance base plate to which the resistance cover seat and shaft support are attached, and an air collection pipe assembly around the resistance base plate.

[0015] The resistance cover is a thin plate-shaped object with an irregular shape that is circular in the middle and extends out on both sides. One of the protruding parts has a tofu-block-like protrusion on its top, which is called a contactor and is used to push the button of the tactile switch. The other half of the protruding part is pre-made into a bushing with a small hole in the center and cooperates with the shaft support. After being inserted into the rotating shaft, the resistance cover can rotate along the rotating shaft.

[0016] A long strip-shaped tension spring seat is prefabricated on the underside of the circular part of the resistance cover. Its axis is the same as the long axis of the resistance cover and perpendicular to the rotation axis of the resistance cover. A tension spring rod hole is prefabricated along the long axis of the tension spring seat for the tension spring rod to pass through.

[0017] The resistance cover seat is circular and high-ring-shaped. The lower part is integral with the resistance base plate, and the upper part is in seamless contact with the circular part of the resistance cover. The two together form an air inlet for controlling the air intake.

[0018] The resistance base plate is a thin, circular plate, slightly larger than the resistance cover. Its surface has three protrusions, two to three small holes, and one larger hole. The three protrusions are a pair of shaft supports, which, together with the bushings, form a rotating shaft via a circular rod-shaped metal assembly. The resistance cover rotates around this shaft to open or close the air inlet, similar to the principle of a toilet seat. The third protrusion is a switch mounting plate located on one side of the resistance cover, with a tactile switch fixing hole and a matching limiter pre-formed on its surface. A larger hole, the air inlet, is pre-formed on one side of the center of the resistance base plate. Its diameter is the same as the inner diameter of the resistance cover, and the inner cavity of the resistance cover's high ring is concentric with this hole, pre-formed on the resistance base plate. Two to three small holes, called alignment holes, are pre-formed on the edge of the resistance base plate. These holes are used to connect with alignment posts on the connecting plate to ensure that the air inlet of the base plate and the air inlet on the connecting plate are concentrically aligned, and that the base plate cannot move after alignment.

[0019] The gas collecting tube assembly consists of three parts. The central part is a short circular tube called the gas collecting tube, which is concentric with the connecting plate described below and is prefabricated on the connecting plate. Its inner diameter is slightly larger than that of the resistance plate, so that the resistance plate can be placed inside the gas collecting tube. The gas collecting tube cavity has a connecting plate air inlet hole and alignment post prefabricated on the connecting plate. The upper half of the outer wall of the gas collecting tube is prefabricated with two O-rings, and the lower half is prefabricated with gas collecting tube threads. The other two parts are called the sealing sleeve and the top ring, respectively. The inner wall of the top ring is prefabricated with threads that match the threads of the gas collecting tube, so it can be screwed onto the gas collecting tube. The inner cavity of the sealing sleeve is slightly smaller than the O-rings mentioned above, so it can be fitted onto the upper half of the gas collecting tube. In use, the top ring is rotated, and the top ring pushes the sealing sleeve upward. The sealing sleeve moves upward and engages with the sealing ring at the bottom of the gas generator above it, causing the gas generator to rise and press the bell mouth against the annular soft sealing ring at the bottom of the electronic box, thereby connecting the entire second layer component into one piece.

[0020] The third layer consists of a circular plastic plate called a connecting plate. Its upper surface is prefabricated with an air collecting pipe, an air inlet hole, and alignment stakes. The air inlet hole is circular, with its center located on one side of the center of the connecting plate. The two are not concentric. The air collecting pipe and the connecting plate are concentric. The diameter of the air inlet hole of the connecting plate is the same as that of the air inlet hole of the resistance substrate. There are 2 to 3 alignment stakes around the air inlet hole of the connecting plate. They are short and thin solid cylinders used to ensure that the air inlet hole of the substrate and the air inlet hole of the connecting plate are concentrically aligned.

[0021] The fourth layer, located below the connecting plate, is used to install the intake resistance adjustment device; there are two types of resistance adjustment devices: one is a rack and pinion spring adjuster assembly; the second is a roller adjuster assembly.

[0022] The rack and pinion spring adjuster assembly consists of the following components: a frame-type fixing bracket with a rack and a sliding adjuster;

[0023] The frame-type fixing bracket is shaped like a door frame, with two uprights and two crossbeams. Several symmetrical grooves, called racks, are prefabricated on the inner side of the uprights on both sides of the door frame, which match the shape of the clip head described later.

[0024] The sliding adjuster is rectangular in shape, consisting of two opposing square boxes. The cross-section of the box is slightly smaller than the distance between the two pillars of the door frame. The two boxes are referred to as the bottom box and the front box, respectively. The bottom box has a rim that is higher than the sides of the box, and its height is the same as the depth of the inner cavity of the front box. This means that the two boxes can fit together tightly. The rim prevents the front box from moving up, down, left, or right when the two boxes are fully or partially fitted together. A fixing bolt is pre-installed in the center of the bottom box, and its length exceeds the thickness of the box after the two boxes are fitted together. A round hole with a diameter slightly larger than the fixing bolt is pre-installed in the center of the front box. When the two boxes are fitted together and a nut is screwed in, the front box will be prevented from moving back and forth, so that the two boxes are functionally integrated. On the lower sidewalls of both boxes, two rectangular holes are pre-fabricated symmetrically. Within the space of each box, inverted U-shaped clips made of elastic material are pre-installed; these are called elastic clips. The two ends of the elastic clips extend outwards as clip heads, protruding from the rectangular holes. The shape of the protruding parts conforms to the grooves of the inner toothed rack of the pillar, allowing them to fit into these grooves. The U-shaped part of the clip is pre-made into an ellipse, called a sliding groove, which fits onto the pre-fabricated fixing post on the upper half of the bottom box. When the clip deforms, the sliding groove can move up and down a short distance, but cannot move left or right. On the center of the back side of the bottom box, a short post is pre-fabricated. On the downward-facing side of the short post, a shallow groove is pre-fabricated for installing a tension spring. The closed surfaces of the two boxes extend to both sides as wings, forming a groove between the wings that conforms to the shape of the door frame pillar. After the two boxes are fully fitted, the distance between their wings is slightly less than the thickness of the door frame pillar.

[0025] The reel adjuster assembly consists of a reel frame, a reel, a reel adjustment knob, a pull cable, and a reel brake nut. The reel frame is prefabricated on the upper surface of the base and is used to install the reel. The reel is a smooth, elongated cylinder, which can be hollow or solid. There is a small hole in the center of the reel, which is a pull cable through hole for passing through and fixing the pull cable. The adjustment knob and brake nut are located at both ends of the reel. The adjustment knob is prefabricated as a whole with the reel. The brake nut end of the reel has a thread. The lower end of the pull cable is connected to the pull cable through hole of the reel, and the upper end of the pull cable is connected to the metal ring at the end of the tension spring from the resistance cover. When the reel adjustment knob is turned, it drives the reel to rotate, causing the pull cable to wind around the reel, thereby extending the tension spring and increasing the spring force borne by the resistance cover. The reel brake nut can fix the position of the reel at any time to prevent the intake resistance adjustment from being inaccurate due to the rotation of the reel.

[0026] The fifth layer is the base, which is a trapezoidal platform that is wider at the bottom and narrower at the top. The upper surface of the platform is prefabricated or installed with an air intake resistance regulator assembly. Below the platform is a covered, sealed cavity containing the following main components: a connecting column base inlet, a battery box, a power switch, an oxygen holder, and an oxygen input conduit interface. One end of the oxygen holder is prefabricated as an integral part of one of the connecting column base inlets, and the other end is the oxygen input conduit interface, which is placed inside the base cavity for connecting to an external oxygen storage device. A corresponding hole is opened in the base wall, called the oxygen conduit inlet, for connecting to an oxygen cylinder or oxygen bag via an oxygen connection hose. The battery box is used to install batteries to power various electronic components inside the electronic box.

[0027] Preferably, the respiratory system muscle trainer uses a single-acting plate switch, which mainly consists of four parts and is encapsulated in a small plastic box. A metal plate fixed to the top of the switch box serves as the fixed electrode, with a perforated contact at its tail for connection to a wire. A metal plate located in the middle of the switch box serves as the moving electrode. A short, rod-shaped inner shaft of the same material, perpendicular to the long axis of the moving electrode, is pre-fabricated on the left-center part of the moving electrode. A moving electrode contact is pre-fabricated on the right side of the moving electrode, corresponding to the fixed electrode. An asymmetrical U-shaped metal spring plate is installed at the bottom of the switch box, with a perforated contact at one end of its lower plate for connection to a wire. A U-shaped inner shaft support is pre-fabricated at the position corresponding to the inner shaft of the moving electrode. The inner shaft and this support are pre-fabricated as a single unit, forming a rotating shaft. The left tail end of the upper plate of the U-shaped metal spring plate is platform-shaped, closely contacting the left half of the moving electrode located thereon. An upward thrust is applied, and a plastic switch button is installed at the lower right end of the moving electrode. This button has an inner part and an outer part. The inner part of the button box, due to the downward pressure of the moving electrode, presses down against the switch box, preventing the moving electrode from rotating. This keeps the moving electrode horizontal while maintaining close contact with the U-shaped metal spring. The moving electrode of this switch maintains continuous close contact with the U-shaped metal spring by relying on the upward elastic force of the shaft and the left tail end of the upper plate of the U-shaped metal spring, thus maintaining reliable conductivity. The short piece at the left tail end of the upper plate of the U-shaped metal spring is used to prevent the upper plate from bending excessively when compressed, thus extending the life of the U-shaped metal spring. An outer shaft seat is pre-fabricated at the top of the switch box, with a round hole in the center, called the outer shaft hole. A round metal rod with a diameter slightly smaller than this hole is inserted to form the shaft. On the right side of the outer shaft seat, a U-shaped metal spring or compression spring is pre-positioned for resetting the switch.

[0028] Preferably, the respiratory system muscle trainer uses a double-acting plate switch, whose main body consists of two electrode plates, referred to as electrode plate I and electrode plate II. Upper and lower contacts are formed at corresponding positions on the right ends of these two electrode plates. These two electrode plates maintain a relatively constant position and distance using multiple limiters. A switch button is installed below the right end of electrode plate II; when the button is pushed upwards, it will push electrode plate II upwards, causing the upper and lower contacts to contact each other. The above-mentioned switch components are encapsulated in a switch box. The space between the left sides of the two electrode plates is pre-formed into a switch shaft hole, which is pre-formed integrally with the switch box. After inserting a thin metal rod, the switch can rotate along this shaft. A U-shaped switch reset spring or compression spring is pre-installed on the top of the switch box for resetting the switch after displacement. The two electrode plates of the tactile switch can move within a certain range within the box. After reaching the maximum range of movement within the box, external force will push the switch to rotate along the aforementioned switch shaft. During this process, the two electrode plates remain in contact.

[0029] Preferably, the respiratory system muscle trainer uses an open-type tactile switch. The current input electrode is pre-fabricated directly on the contactor surface of the resistance cover, and the current output electrode is pre-fabricated as a U-shaped spring sheet with a large opening, which is fixed to the switch mounting plate as needed. The sensitivity of the switch depends on the distance between the two electrode contacts. Specifically, U-shaped electrode sheet limiters I, II, and III are pre-fabricated on the switch mounting plate to fix the electrodes. The U-shaped electrode sheet is installed in the three limiters. Electrode I is made of the same material as the U-shaped electrode sheet and is pre-fabricated as a single unit. Electrode II is pre-positioned on the contactor surface of the resistance cover.

[0030] Furthermore, the respiratory system muscle trainer requires only two electrodes for its tactile switch. The connecting wires of the two electrodes eventually return to the base. There are two ways for them to return: one is to pass through the wire holes pre-set in the resistance substrate and the connecting plate, and then enter the base in the pre-set wiring channel in the fourth layer. In this method, the resistance substrate has matching wire holes to guide the two wires of the tactile switch to the bottom of the connecting plate; the other method is to pre-fabricate the electrode contacts at the mating positions of the resistance substrate and the connecting plate. In this way, the tactile switch electrode is connected to the electrode contacts on the resistance substrate through short wires. After the wires from the base are connected to the electrode contacts on the connecting plate, they are pre-fabricated together in the connecting plate and a connecting post.

[0031] Preferably, the electronic box of the respiratory muscle trainer also houses an electronic voice chip module and a miniature speaker; LED light holes are provided on the annular surface of the electronic box; a sound source selection switch and a USB interface are provided inside the base; the positive terminal of the battery is connected to the input terminal of the power switch, and the negative terminal is shared by all circuits; the current from the output terminal of the power switch is split into two paths, one of which goes directly upward to the electronic box to power the pressure sensor and the display screen. This current is not controlled by the tactile switch on the resistance generating device. The other output wire of the power switch goes upward to connect to the input terminal of the tactile switch. The output wire of the tactile switch goes downward to the cavity of the base and then splits into two paths. One path connects to the input terminal of the sound source selection switch, and the output wire of the sound source selection switch goes upward to the electronic box and connects to the electrode of the electronic voice chip module. The other path connects to the downward wire of the LED light from the electronic box.

[0032] Optionally, the fixing bolts in the rack and pinion spring adjuster assembly of the respiratory system muscle trainer are equipped with two types of nuts: a conventional nut with a through-hole in the center and a capped nut with a closed-hole in the center. When using the conventional nut, after tightening, the flaps of the two boxes will press against the uprights, and the sliding adjuster will be positioned at any position between the door frame uprights, without being restricted by the rack.

[0033] Preferably, the differential pressure sensor used in the respiratory system muscle trainer is a miniature bidirectional differential pressure sensor.

[0034] Preferably, the respiratory system muscle trainer is further provided with an exhalation module, which consists of an exhalation resistance generating and adjusting component and an exhalation resistance T-shaped tube;

[0035] The expiratory resistance generating and regulating component is cylindrical in appearance and consists of a sleeve and a pressure regulating valve core.

[0036] The sleeve is cylindrical, with a thread pre-made on the inner wall of the upper end that matches the thread on the outer wall of the vertical tube of the T-shaped tube described below. The two are connected and fixed together by this thread. The inner cavity of the lower end has a circular support plate with an adjusting nut pre-made in the center. The plate surface has several fan-shaped air outlet holes.

[0037] The pressure regulating valve core consists of a sealing cover, a compression spring, a movable cover, an adjusting bolt-nut, and a valve core frame. Both the sealing cover and the movable cover are circular, with a compression spring installed in the middle. All three are encapsulated within the valve core frame. A circular hole is pre-drilled in the center of the movable cover for installing the rotating head of the adjusting bolt. The valve core frame is cylindrical in appearance, with an annular shape at the top, which is normally blocked by the sealing cover, preventing gas from entering or exiting. The wall of this cylindrical tube is incomplete, with several groove-shaped vent holes. The bottom is disc-shaped, with a circular hole in the center for the bolt to pass through. Several semi-circular vent holes are pre-drilled around the disc.

[0038] The expiratory resistance T-tube is a slightly thicker T-shaped short tube. Its horizontal tube is divided into an inlet end (air inlet) and an outlet end (air outlet), with the inlet end being longer than the outlet end. An inlet one-way valve is installed in the inner cavity of the inlet end—gas can only be delivered from the main unit to the user through the one-way valve, and the user's exhaled waste gas cannot enter the main unit through the one-way valve. The surface of the horizontal tube has a pre-fabricated expiratory pressure measuring tube seat, which communicates with the inner cavity of the horizontal tube through a pre-fabricated connecting hole in the tube wall. The connecting hole is located at the outlet end of the reverse duckbill one-way valve. The expiratory pressure measuring tube seat is connected to the pressure sensor measuring end in the main unit's electronic box through a flexible tube. The vertical tube surface of the expiratory resistance T-tube has pre-fabricated threads for connection with the aforementioned sleeve.

[0039] The inlet of the expiratory resistance T-tube is connected to the outlet of the electronic box's air supply tube via a threaded tube, and the outlet is connected to the human-machine interface. The vertical tube is connected to the sleeve. After the vertical tube is connected to the sleeve, its length is just right to be held in the hand, serving as a handle for expiratory training.

[0040] Preferably, the one-way valve of the expiratory reversible T-tube is the reverse duckbill one-way valve disclosed in application number 201510120553.5.

[0041] The airway pressure display device can be either an effector display screen that displays the airway pressure value in real time, or a standard miniature three-wire digital DC voltmeter. The airway pressure display device has two configuration options: one is installed inside the display mounting hole on the electronic box, connected to the bidirectional differential pressure sensor via a wire through the PCB board; the other configuration is installed externally to the main unit, transmitting the pressure change signal obtained by the differential pressure sensor to the display screen wirelessly. This requires integrating a wireless transmission signal transmitter module connected to the differential pressure sensor onto the PCB board inside the electronic box, and the front end of the external pressure display also needs to be equipped with a wireless signal receiver module and a battery.

[0042] The inventor points out: (1) There are voice modules on the market that can import audio source files. They can also be prefabricated on the same circuit board as other electronic components. The USB interface in the base is used to import audio source files. Other function buttons are also arranged in the base, which are not shown in the figure. All the up and down wires enter the channel inside the base through the connection column base entrance and run in the channel. The wires are not visible on the exterior of the host. The electronic voice chip module (also called the music module) can be customized or ready-made modules sold on the market can be used directly. A set of ordinary music doorbell modules is sufficient. It is best to prefabricate the differential pressure sensor, multi-track music module, wireless signal generator, and miniature speaker on a PCB board that fits the inner cavity of the electronic box, and then install this board in the box cavity. Of course, the above-mentioned components can also be installed separately in the box. Such installation will require a relatively large space. The pressure measuring air hose and many flying wires will make the inside of the box look messy.

[0043] (2) When customizing the electronic components, it is best to choose the same voltage, so that the power supply configuration will be much simpler.

[0044] (3) A single-acting switch is the preferred switch of the present invention, and a double-acting switch is the secondary switch of the present invention. The advantages of an open switch are low cost and adjustable sensitivity, but the disadvantage is that it is exposed to flowing air for a long time and has a short effective life.

[0045] (4) How to use the sliding adjuster: Fit the two boxes with pre-installed elastic clips between the door frame posts. The clip heads are inserted into the grooves on the inner side of the posts. Screw the capped nut into the fixing bolt. This nut is pre-made so that when screwed all the way in, the wing of the box is close to the post and will not rub against the post. The fitted sliding adjuster can slide up and down between the posts. The clip heads have a certain resistance to the sliding. This resistance is greater than the tension of the spring. When the adjuster is slid up and down without external force, the clip heads are inserted into the rack groove on the inner side of the door frame post. Even if the spring is stretched due to external force, the sliding adjuster cannot be moved. This is used to adjust the length of the spring and thus adjust the tension of the spring. For users who prefer stepless adjustment of the spring tension, the capped nut can be replaced with a regular nut. After this nut is tightened, the wing of the two boxes will press against the post. The sliding adjuster will be positioned anywhere between the door frame posts, without being restricted by the rack. The rack and pinion spring adjuster assembly can be used individually or in pairs, each controlling one tension spring.

[0046] (5) When using the pressure regulating valve core, the pressure regulating valve core and adjusting bolt-nut are pre-installed in the sleeve. The upper end of the sleeve is connected to the vertical tube of the exhalation blocking T-shaped tube. When the user exhales forcefully, the exhaled air presses against the sealing cover. When the pressure exceeds the elastic force of the compression spring, the sealing cover moves down, and the exhaled air enters the pressure regulating valve core and is discharged sequentially along the grooved air outlet, the semi-circular air outlet, and the fan-shaped air outlet. Rotating the adjusting bolt causes the rotating head at the top to push the movable cover upward, compressing the compression spring and increasing the sealing pressure of the sealing cover. The user needs to use greater exhalation force to exhale the waste gas, thereby achieving the purpose of exercising the respiratory muscles.

[0047] (6) The inlet end of the expiratory resistance T-tube is connected to the outlet of the electronic box's air supply tube via a threaded tube, and the outlet end is connected to the human-machine interface. The vertical tube is connected to the sleeve. After the vertical tube is connected to the sleeve, its length is just right to be held in the hand, serving as a handle for expiratory training.

[0048] (7) Threaded tubes can be made from readily available medical products on the market or can be customized.

[0049] (8) If an external wireless pressure display screen is used, no threaded tube is required. The human-machine interface is directly connected to the air outlet of the air supply tube on the electronic box, and the user can use the host for training.

[0050] The beneficial effects of this invention are as follows: (1) When users use this invention to exercise their respiratory muscles, the exhalation module and the inhalation module can be used together or separately. (2) This invention selects a miniature bidirectional differential pressure sensor. Only one sensor needs to be installed to simultaneously meet the needs of inhalation and exhalation exercises, and the structure is simple. (3) This invention allows users to intuitively feel the changes in the exercise effect through the airway pressure display device, which can also enhance their confidence in exercising. (4) This invention has two preset tension spring positions, which can suspend two tension springs or use only one, and preset tension springs with different tensions as needed. One end of the tension spring is suspended on the air intake tension spring rod, and the other end is downward, passing through the inner cavity of the resistance cover seat and fixed on the above-mentioned resistance adjustment device. The elasticity of the two tension springs can be adjusted separately, that is, the two tension springs can be used alone or in combination. The performance parameters of the two tension springs can be exactly the same or different. If necessary, tension springs with different elastic forces can be replaced during use. Usually, the elasticity of one tension spring can meet the exercise needs of most users. With two tension springs, the exercise needs of almost everyone can be met. (5) The normally open single-channel two-prong tactile switch designed in this invention is simpler in structure and principle than the commercially available two-channel three-prong switch. There are two technical requirements: high sensitivity and long effective stroke. The former means that the moving contact only needs to move a very short distance to make the switch conduct, and the latter means that after conduction, the two contacts will remain in contact and conduction state as the resistance cover rotates. (6) The exhalation reversing T-shaped tube designed in this invention ensures that the inhaled air and exhaled air flow in one direction respectively and do not cross-mix. The waste gas exhaled by the user only needs to flow a very short distance to be discharged outside the instrument, avoiding adverse effects on the user. (7) In this invention, a breathable cotton pad soaked in medicine is placed in the external air channel. While inhaling, the user can deeply inhale the medicine that has the effect of treating chronic diseases. The chronic diseases mentioned are not limited to respiratory diseases. Other system diseases can also benefit from such medicine treatment. The simplest example is that the fragrance of rose or osmanthus can make people feel happy. (8) This invention uses sound and light information to inform the user of the preset endpoint. Most people have a subconscious desire to never give up until they achieve their goal. In order to achieve the preset interesting goal, they will keep working hard to exercise. (9) This invention uses a differential pressure sensor and effector to display the user's airway pressure value in real time during the training process, so that the user can see the effect of their exercise intuitively. Continuous progress can significantly enhance the user's confidence. (10) The use of this product can significantly enhance the user's upper and lower respiratory tract related muscle groups' contraction ability, maintain muscle tension, improve the quality of life of patients with chronic respiratory diseases, reduce the economic burden on patients and the country, and contribute to the implementation of the "Healthy China 2030" plan. Attached Figure Description

[0051] Figure 1This is a schematic diagram of the main unit of the present invention tilted 15 degrees to the right from the front.

[0052] Figure 2 This is a schematic diagram of the electronic box of the present invention tilted 15 degrees to the right and forward;

[0053] Figure 3 This is a bottom view of the electronic box of the present invention;

[0054] Figure 4 This is a top view of the electronic box of the present invention;

[0055] Figure 5 This is a schematic diagram of the medicinal gas generator of the present invention;

[0056] Figure 6 This is a schematic diagram of the gas collecting tube of the present invention;

[0057] Figure 7 This is a schematic diagram of the resistive substrate and prefabricated components of the present invention;

[0058] Figure 8 This is a front-view schematic diagram of the resistance cover of the present invention;

[0059] Figure 9 This is a bottom view of the resistance cover of the present invention;

[0060] Figure 10 This is a bottom view of the mounting of the resistance substrate and connecting plate of the present invention;

[0061] Figure 11 This is a front view schematic diagram of the intake resistance generating component of the present invention;

[0062] Figure 12 This is a left front oblique view of the intake resistance generating component of the present invention;

[0063] Figure 13 This is a schematic diagram of the connecting plate of the present invention;

[0064] Figure 14 This is a front view schematic diagram of the double-acting tactile switch of the present invention;

[0065] Figure 15 This is a front view schematic diagram of the open switch of the present invention;

[0066] Figure 16 This is a front view schematic diagram of the principle of the single-acting tactile switch of the present invention;

[0067] Figure 17 This is a front view of the single-acting tactile switch and part of the housing of the present invention;

[0068] Figure 18 This is a schematic diagram showing the separation of the face box and the bottom box in the sliding adjuster of the present invention;

[0069] Figure 19 This is a front view schematic diagram of the sliding adjuster of the present invention at a small angle of tilt;

[0070] Figure 20 This is a schematic diagram of the sliding adjuster of the present invention at a small angle of tilt from the rear.

[0071] Figure 21 This is a front view of the sliding adjuster of the present invention with the face box cover removed;

[0072] Figure 22 This is a schematic diagram of the intake resistance adjustment component assembly of the present invention;

[0073] Figure 23 This is a schematic diagram of the intake resistance adjustment roller of the present invention;

[0074] Figure 24 This is a schematic diagram of the bottom of the main unit base of the present invention;

[0075] Figure 25 This is a schematic diagram of the expiratory reversal T-tube of the present invention;

[0076] Figure 26 This is a cross-sectional view of the outlet end of the expiratory T-shaped tube of the present invention.

[0077] Figure 27 This is a schematic cross-sectional view of the expiratory resistance generation and adjustment component of the present invention;

[0078] Figure 28 This is a schematic diagram of the pressure regulating valve core of the present invention;

[0079] Figure 29 This is a schematic cross-sectional view of the pressure regulating valve core of the present invention.

[0080] In the diagram: a0101 - Gas outlet of the gas delivery tube; a0102 - Oxygen interface inside the box; a0103 - Differential pressure sensor measurement interface; a0104 - Gas delivery tube; a0105 - Gas inlet of the gas delivery tube; a0106 - Soft sealing ring; a0107 - Exhalation measurement tube; a0201 - Drug gas generator; a0202 - O-ring seal of drug gas generator; a0203 - Sealing sleeve; a0204 - Top ring; a0205 - O-ring seal; a0206 - Gas collecting tube thread; a0207 - Cotton pad retainer ring; a0208 - Cotton pad fixing clip; a0209 - Gas splitter; a0210 - Shaft support; a0211 - Resistance cover seat; a0212 - Resistance base plate; a0213 - Resistance cover; a021 4-Sleeve; a0215-Contactor; a0216-Tension Spring Seat; a0217-Tension Spring Rod Hole; a0218-Switch Mounting Plate; a0219-Switch Return Spring; a0220-Tact Switch; a0221-Switch Shaft Hole; a0222-Electrode I; a0223-Electrode II; a0224-Switch Button; a0225-Switch Limiter; a0226-Relieving Base Plate Alignment Hole; a0227-Switch Shaft Sleeve; a0228-Electrode I; a0229-Electrode II; a0230-Electrode I Lower Limiter; a0231-Electrode II Lower Limiter; a0232-Elastic Return Plate I; a0233-Elastic Return Plate II; a0234-Upper Contact; a0235-Lower Contact Contact; a0236-Electrode Plate I Top Limiter; a0237-U-shaped Electrode Plate Limiter I; a0238-U-shaped Electrode Plate Limiter II; a0239-U-shaped Electrode Plate Limiter III; a0240-U-shaped Electrode Plate; a0241-Self-Electrode I; a0242-Self-Electrode II; a0243-Tactile Switch II Housing; a0244-Outer Shaft Seat; a0245-Outer Shaft Hole; a0246-U-shaped Metal Spring; a0247-Moving Electrode; a0248-Fixed Electrode; a0249-Inner Shaft Support; a0250-Inner Shaft; a0251-Moving Electrode Contact; a0252-Inner Part of Key Box; a0253-Key Head; a0254-Moving Electrode Contact; a0255-Fixed Electrode Contact a0256 - Elastic tail plate; a0257 - U-shaped spring plate platform; a0401 - Sliding adjuster; a0402 - Fixing bolt; a0403 - Door frame type fixing bracket; a0404 - Bottom box; a0405 - Edge; a0406 - Elastic clip; a0407 - Clip head; a0408 - Sliding groove; a0409 - Fixing column; a0410 - Wing; a0411 - Face box; a0412 - Door frame column; a0413 - Rack; a0414 - Reel adjustment knob; a0415 - Reel brake nut; a0416 - Reel; a0417 - Pull cable through hole; a0501 - Oxygen conduit inlet; a0502 - Connecting column base inlet; a0503 - Sound source selection switch;a0504 - USB interface; a0505 - Power switch; a0506 - Battery box; a0507 - Oxygen holder; a0508 - Oxygen input tubing interface; b0101 - Sleeve; b0102 - Thread; b0103 - Support plate; b0104 - Adjusting nut; b0105 - Fan-shaped air outlet; b0106 - Valve core frame; b0107 - Sealing cap; b0108 - Compression spring; b0109 - Movable cover; b0110 - Adjusting bolt; b0111 - Rotating head; b0112 - Semi-circular air outlet; b0201 - Expiratory resistance T-tube; b0202 - Expiratory resistance T-tube outlet; b0203 - Reverse ducking One-way valve outlet; b0204 - Expiratory pressure measurement tube seat; b0205 - Differential pressure sensor connecting tube; b0206 - Expiratory backflow preventer T-tube inlet; b0207 - Connecting hole; b0208 - Reverse duckbill one-way valve body; b0209 - Expiratory backflow preventer T-tube connecting thread; c0101 - Electronic box cover; c0102 - Air pressure balance window; c0103 - Display screen mounting hole; c0104 - LED light hole; c0105 - Reserved expansion hole (expiratory pressure measurement hole); c0201 - Connecting post; c0301 - Connecting plate; c0302 - Connecting plate inlet; c0303 - Resistance base plate alignment post; c0501 - Base. Detailed Implementation

[0081] The following is a reference to the appendix. Figure 1-29 Further explanation of the present invention:

[0082] Example 1

[0083] A respiratory system muscle trainer consists of three main parts: an inhalation module, an exhalation module, and a set of common accessories used in both modules. The inhalation module uses a rack and pinion spring adjuster for inhalation resistance, a custom-designed single-acting tactile switch for the sound and light display trigger, and a dedicated pressure display screen for airway pressure display.

[0084] The assembly and connection of each component are described below:

[0085] Main unit assembly: The miniature bidirectional differential pressure sensor, miniature speaker, voice chip control components, and multiple power supply interfaces are prefabricated on a single PCB board. The shape of this PCB board is customized according to the internal dimensions of the electronic box and the components to be installed. This PCB board is installed inside the electronic box. Prefabricated short flexible tubes are used to connect the measuring end of the differential pressure sensor to the differential pressure sensor measuring interface a0103, and the oxygen outlet of the connecting post c0201 to the oxygen interface a0102 inside the box. A connecting tube (not shown) is pre-inserted into the reserved expansion hole (expiratory pressure measurement hole) c0105, and then this connecting tube is connected to the exhalation measurement tube a0107 using a flexible tube. The LED light is installed in the LED light hole c0104, and the pressure display screen is installed in the display screen mounting hole c0103. The wires of both components are connected to the corresponding circuit interfaces on the PCB board. All control circuit wires and power supply wires descend through the pipe in the center of the connecting column c0201 to the base c0501, where they are connected to the corresponding power supply and control switches. The reference end of the differential pressure sensor is open to the atmosphere inside the electronic box.

[0086] Place a round, breathable cotton pad soaked in medicinal liquid on a stainless steel filter screen of the same diameter, and together place it between the cotton pad retaining ring a0207 and the cotton pad fixing clip a0208 inside the flared opening of the medicinal gas generator a0201, so that it cannot move.

[0087] The gas collection tube and connecting plate c0301 are prefabricated as a whole; a thin stainless steel tube (which can be modified from an ordinary injection needle) is passed through the spring rod hole a0217 on the spring seat a0216. During the process, it also passes through the top circles of two springs (not shown) in sequence, and one end of the spring is suspended on the spring seat a0216; a thin stainless steel tube is passed through the shaft support a0210 and the bushing a0214 in sequence to form a rotating shaft joint, connecting the resistance cover a0213, the resistance cover seat a0211 and the resistance base plate a0212 into a whole. The resistance cover a0213 can rotate along the above-mentioned rotating shaft. The spring hangs down from the air inlet in the resistance cover seat a0211, passes through the air inlet in the connecting plate c0301, and enters the fourth layer.

[0088] The custom-made single-acting tactile switch is mounted on the switch mounting plate a0218 via the outer shaft hole a0245 and the limiter (e.g., Figure 11 To ensure that the button head a0253 is located in the center of the contactor a0215 on the resistance cover a0213, with a distance of micrometers from the contactor a0215, and at the same time, to ensure that the switch can rotate flexibly along the pivot joint formed by the outer shaft hole a0245, the switch reset spring a0219 ensures the quick reset of the tactile switch.

[0089] Install the resistance base plate a0212, with all components already installed, inside the air collection pipe. The alignment hole a0226 on the resistance base plate a0212 is fitted and bonded to the resistance base plate alignment post c0303 on the connecting plate c0301, ensuring that the air inlet on the resistance base plate a0212 and the air inlet on the connecting plate c0301 are concentric and circular, preventing air from entering the air collection pipe a0210 from the edge of the resistance base plate a0212. The connecting wires of the moving electrode contact a0254 and the fixed electrode contact a0255 are moved downwards into the base c0501 through a pre-installed conduit (not shown).

[0090] Install the top ring a0204 outside the gas collecting pipe thread a0206, and install the sealing sleeve a0203 outside the gas collecting pipe O-ring seal a0205, with its lower end touching the upper end of the top ring a0204 and its top parallel to the upper end of the gas collecting pipe. Place the lower end of the gas generator a0201 on the upper end of the gas collecting pipe, rotate the top ring a0204, and the moving top ring a0204 pushes the sealing sleeve a0203 upwards. The sealing sleeve a0203 passes over the gas generator O-ring seal a0202 and presses against the umbrella-shaped structure at the lower end of the gas generator a0201, pushing the gas generator a0201 upwards. Its flared mouth presses against the soft sealing ring a0106 at the bottom of the electronic box. Thus, a closed air intake path is formed from the air inlet of the connecting plate c0301 to the air outlet a0101 of the electronic box gas supply pipe.

[0091] The fourth layer of the main unit of this invention is equipped with a rack and pinion spring adjuster assembly. The door frame type fixing bracket a0403 is prefabricated as an integral part with the connecting plate c0301 and the upper surface of the base c0501. This embodiment uses two tension springs. It is best to configure two adjuster assemblies, each controlling the elastic adjustment of one tension spring. Alternatively, only one adjuster assembly can be used, although the adjustment accuracy will be lower, but the structure will be simpler and the cost will be lower. The elastic clip a0406 is installed on the fixing post a0409 inside the bottom box a0404. Then, the face box a0411 is aligned with the bottom box a0404 through the door frame type fixing bracket a0403 to form the main body of the sliding adjuster a0401. The edging a0405 will restrict the movement of the face box a0411. Screw the capped nut (not shown) into the fixing bolt a0402. The capped nut is pre-threaded so that the wings a0410 of the two boxes are just flush against the door frame post a0412 of the door frame type bracket a0403. The sliding adjuster a0401 is now assembled. Insert the lower end of the tension spring from the upper resistance cover a0213 into the groove of the short post in the center of the back of the bottom box a0404. If two tension springs need to be controlled, this short post needs to be pre-made longer, and two grooves should be pre-made, one for each tension spring. These two tension springs can be inserted at once, or one can be inserted first, and after some practice and adaptation, the other tension spring can be inserted. In use, the user moves the sliding adjuster a0401 down by hand, causing the tension spring to extend. This increases the resistance to opening the resistance cover a0213, and the clip head a0407 is inserted into the rack a0413. The tension of the tension spring is less than the friction between the clip head a0407 and the rack a0413, so the tension spring cannot rebound. The tension of the tension spring on the resistance cover a0213 is constant at this position, but the user can adjust it by hand.

[0092] For users who prefer stepless adjustment of the tension spring, the capped nut can be replaced with a regular nut. After tightening this nut, the flaps a0410 of the two boxes will press against the door frame post a0412, and the sliding adjuster a0401 will be positioned anywhere between the door frame posts a0412, without being restricted by the rack a0413.

[0093] The positive wire of the battery box a0506 inside the base c0501 is connected to the input terminal of the power switch a0505. The negative wire of the battery box a0506 enters the base inlet a0502 of the connecting post, and enters the electronic box through the connecting post c0201, where it is shared by all electronic components inside the box.

[0094] The output wires of the power switch a0505 are divided into two paths: one path is connected to the moving electrode a0247 of the custom single-acting tactile switch, and its fixed electrode a0248 is connected to the LED light wire from the electronic box and the input terminal of the audio source selection switch a0503 in the base c0501. The output terminal of the latter is connected to the voice module wire from the electronic box; the other path is directly connected to the wires of the miniature bidirectional differential pressure sensor and the matching display screen in the electronic box, supplying power to these two components.

[0095] The four electrodes of the USB interface a0504 are connected to four wires from the voice module on the electronic box PCB board, respectively, to provide the voice module with the voice data to be installed later.

[0096] Place the electronic box cover c0101 on top of the electronic box. At this point, the main unit assembly is complete.

[0097] Expiratory module assembly: The expiratory module consists of an expiratory resistance generation and adjustment component and an expiratory resistance T-tube.

[0098] Press the pre-installed rubber diaphragm reverse duckbill check valve body b0208. Figure 26 The layout is installed inside the expiratory resistance T-tube b0201.

[0099] Install the sealing cap b0107, compression spring b0108, movable cover b0109, adjusting bolt b0110, rotating head b0111, and valve core holder b0106. Figure 28 , Figure 29 The pressure regulating valve core shown is prefabricated, and this valve core is then pressed together with the support plate b0103. Figure 27 The layout is prefabricated or installed later inside the sleeve b0101. At this point, the exhalation module assembly is complete.

[0100] Connection and use of the complete machine: Connect the air outlet a0101 of the main unit's air supply pipe to the air inlet b0206 of the expiratory reverse-flow T-tube using a threaded tube. Then connect the human-machine interface to the air outlet b0202 of the expiratory reverse-flow T-tube. Screw the thread b0102 of the sleeve b0101 of the expiratory module into the connecting thread b0209 of the expiratory reverse-flow T-tube, making these two components a single unit. Finally, connect the differential pressure sensor connection port b0205 on the expiratory reverse-flow T-tube b0201 to the connecting tube (not shown) pre-inserted into the pre-drilled expansion hole (expiratory pressure measurement hole) c0105 on the surface of the electronic box using a flexible tube. At this point, the machine assembly of Embodiment 1 of the present invention is complete.

[0101] How to use this invention: Turn on the power switch a0505 inside the base c0501. Power will immediately supply power to the bidirectional differential pressure sensor and its matching display screen. The display screen shows the current pressure value in the air circuit, which is usually preset to zero. Select the appropriate human-machine interface according to the user's exercise purpose and usage habits and connect it to the machine. Adjust the audio source selection switch a0503 to select the user's preferred short audio frequency. Adjust the position of the sliding regulator a0401 to stretch the tension spring appropriately. The user connects the human-machine interface to the mouth and nose and inhales forcefully. This will create negative pressure in the air passage between the human-machine interface and the resistance cover a0213, forming a pressure difference with the external atmospheric pressure. When this difference reaches the opening threshold of the resistance cover a0213, the outside air reaches the resistance cover seat a0211 through the air inlet of the connecting plate c0301 and the air inlet of the resistance base plate a0212. It overcomes the tension of the tension spring, pushes open the resistance cover a0213, enters the gas collection pipe, and passes upward through the cotton pad in the flared mouth of the drug gas generator a0201, forming air with a medicinal smell. This air passes through the air inlet a0105 at the bottom of the electronic box, exits from the air outlet a0101, enters the threaded pipe, and then passes through the reverse duckbill one-way valve and the human-machine interface before entering the lungs. During this process, when the resistance cover a0213 is pushed open, the contactor a0215 on its upper surface will push the button head a0253 of the customized single-acting tactile switch upward. The button head a0253 moves upward, causing the inner part a0252 of the button box to move upward, so that the moving electrode contact a0251 contacts the fixed electrode a0248. The current from the output terminal of the power switch is transmitted through the moving electrode contact a0254, through the inner shaft bracket a0249, the U-shaped spring plate a0246, the U-shaped spring plate platform a0257, and the inner shaft a0250 to the moving electrode contact a0251, then through the fixed electrode a0248 to the fixed electrode contact a0255, and finally through the wire to the effector, so that the LED light on the surface of the electronic box lights up. At the same time, the voice module is powered on and the miniature speaker emits the preset sound. Adjusting the control handle of the sound source selection switch a0503 will make the speaker emit different sounds. As the user inhales more forcefully, the upward rotation angle of the resistance cover a0213 gradually increases, and the pressure on the tactile switch also continuously increases. While the moving electrode contact a0251 remains in contact with the fixed electrode a0248, the switch rotates along the shaft formed by the outer shaft seat a0244 and the outer shaft hole a0245 of the tactile switch 2 and the metal shaft. The tactile switch does not significantly obstruct the opening of the resistance cover a0213. When the user's inhalation reaches its limit, the inhalation airflow gradually decreases, and the negative pressure in the airway decreases. When the negative pressure is insufficient to support the opening of the resistance cover a0213, the tactile switch 2 returns to its original position under the action of the reset spring and the cooperation of the limiter (not shown). The resistance cover a0213 closes with the resistance cover seat a0211 under the action of the tension spring, the internal contacts of the tactile switch open, the LED light in the electronic box goes out, the horn sound disappears, and the airway pressure display value returns to the initial value.This completes one inhalation exercise. Regardless of whether the touch switch inside the air collection tube is activated, the highly sensitive pressure sensor will generate a corresponding current change when the user inhales, and the pressure display will show the changing pressure value in real time. Through these sound, light, and digital changes, the user can clearly see the effect of their exercise, increasing their interest and endurance; the inhaled air with a medicinal aroma helps repair lesions in the user's upper and lower respiratory tract mucosa. Moving the sliding adjuster a0401 up and down will change the length of the tension spring accordingly, allowing the pressure value for opening the resistance cover a0213 to increase or decrease accordingly, adapting to different users or different exercise stages of the same user.

[0102] When the user exhales with a certain force, the reverse duckbill one-way valve inside the T-shaped tube b0201 prevents the exhaled air from entering the threaded tube, thus separating the inlet and outlet air, and ensuring that there is no waste gas in most of the pipes. The exhaled air is forced into the vertical tube of the T-shaped tube b0201. When the pressure exceeds the elastic force of the compression spring b0108, it pushes the sealing cover b0107 of the pressure regulating valve core downward, allowing the exhaled air to enter the pressure regulating valve core, then pass through the grooved air outlet on the side wall, downward through the semi-circular air outlet b0112 and the fan-shaped air outlet b0105, and finally be discharged into the atmosphere. Rotating the adjusting bolt b0110 causes the rotating head b0111 at its top to move the movable cover b0109 up and down, applying different pressures to the sealing cover b0107 through the compression spring b0108. The user then needs to use different exhalation forces to expel the waste gas, thereby achieving the purpose of exhalation training. When the user exhales, the pressure inside the expiratory resistance T-tube b0201 increases. The changing pressure inside the airway affects the differential pressure sensor inside the electronic box through the connecting hole b0207 and the pressure sensor connection port b0205. The pressure display screen on the surface of the electronic box can display the expiratory pressure value in real time, and the user can also intuitively see the effect of their expiratory exercise.

[0103] Users without hypoxia do not require additional oxygen supply when exercising with this invention, and therefore do not need to connect to an oxygen source. The oxygen input conduit interface a0508 can be blocked with a sealing cap (not shown). For users with hypoxia, the oxygen conduit connected to the oxygen source enters the machine base c0501 through the oxygen conduit inlet a0501 and connects to the oxygen input conduit interface a0508. During use, the oxygen source flow switch is turned on, and the oxygen input amount is adjusted according to individual oxygen needs; usually only a small amount of oxygen is needed, as excessive oxygen will hinder the establishment of negative pressure in the airway. Oxygen enters the pipe in the connecting column c0201 through the oxygen holder a0507, and then flows upward through the oxygen interface a0102 inside the box into the gas chamber, where it mixes with the medicinal gas and is inhaled by the user to alleviate hypoxia. This invention is not recommended for users with severe hypoxia.

[0104] Inspiratory function training (inspiratory module) and expiratory function training (expiratory module) are usually used together, but each function can also be used separately.

[0105] When using the inspiratory resistance training function alone, the expiratory resistance T-tube b0301 does not need to be connected. The threaded tube connects directly to the human-machine interface. Additionally, the expiratory measurement tube a0107 inside the electronic box needs to be plugged with a sealing cap (not shown).

[0106] If an external wireless pressure display is used, no threaded tube is needed. The human-machine interface is connected directly to the air outlet of the electronic box via a short flexible tube, and the user can hold the host for training.

[0107] Example 2

[0108] A respiratory system muscle trainer consists of three main parts: an inhalation module, an exhalation module, and a set of common components for both modules. The sound and light signal activation switch is a double-acting tactile switch, and the inhalation resistance adjustment component for the inhalation module is a roller adjuster set. The remaining components are the same as in Embodiment 1.

[0109] The assembly and connection of most components of the inhalation module, the exhalation module, and the components shared by both modules are the same as in Example 1. Only the assembly and operation of the following two groups of components are different.

[0110] like Figure 11 As shown, a short metal rod or tube matching the diameter of the switch shaft hole a0221 is inserted as a shaft. The double-acting tactile switch is installed on the switch mounting plate a0218 via a shaft bracket (not shown) prefabricated on the switch mounting plate a0218. The movement of this switch is restricted by the switch limiter a0225 and cannot rotate downwards. It can only rotate upwards around the switch shaft. When rotating upwards, it is restricted by the elastic resistance of the switch reset spring plate a0219 to a certain extent. Electrodes I a0222 and II a0223 are respectively connected to two wires. These wires move downwards through a pre-installed conduit (not shown) into the base c0501 and are respectively connected to the sound source selection switch a0503 and the LED light wire from the electronic box.

[0111] like Figure 23As shown, the reel adjuster assembly consists of a reel bracket (not shown), a reel a0416, a reel adjustment knob a0414, a pull cable (not shown), and a reel brake nut a0415. The reel bracket is prefabricated on the upper surface of the machine base and is used to install the reel a0416. The upper end of the pull cable is connected and fixed to the lower metal ring of the tension spring. The lower end of the pull cable passes through the pull cable through hole a0417 on the reel a0416 and is fixed. Rotating the reel adjustment knob a0414 causes the pull cable to wind around the reel a0416, extending the tension spring and applying elastic resistance to the opening of the resistance cover a0213. Tightening the reel brake nut a0415 fixes the reel a0416. When the resistance cover a0213 is opened, it will only extend the tension spring and will not cause the reel a0416 to rotate.

[0112] During use, the user inhales forcefully, creating a negative pressure in the air intake path, forming a pressure difference with the external atmospheric pressure. When this difference reaches the opening threshold of the resistance cover a0213, the resistance cover a0213 overcomes the resistance of the tension spring and opens. The contactor a0215 pushes the switch button a0224 upward, causing the lower contact a0235 to contact the upper contact a0234. Electrode plate I a0228 and electrode plate II a0229 are connected, and the current is transmitted through electrode II a0223 to electrode I a0222, and then through the wire to the corresponding contact in the base c0501. Electrode plate I a0228 and electrode plate II a0229 are then connected. 29. The movement distance within the switch box is limited. When the movement limit of the two electrode plates is reached and the resistance cover a0213 continues to rotate upward, the switch box will rotate upward along the pivot formed by the pivot hole a0221 until the user stops inhaling. The switch box will then reset under the action of the switch reset spring plate a0219 and the switch limiter a0225 outside the box. Inside the box, the two electrode plates will reset under the combined action of the elastic reset plate I a0232, the elastic reset plate II a0233, the lower limiter a0230 of electrode plate I, the lower limiter a0231 of electrode plate II, and the top limiter a0236 of electrode plate I. The air and electrical effects caused by opening the resistance cover a0213 are the same as in Example 1. The adjustment of the inhalation exercise resistance by the roller adjuster group is stepless; the required spring length can be determined after a few trials.

[0113] Example 3

[0114] A respiratory system muscle trainer consists of three main parts: an inhalation module, an exhalation module, and two modules that can be constructed using shared accessory assemblies. An open-type switch is selected for the sound and light signal activation, and the remaining components are the same as in Embodiment 1.

[0115] like Figure 15As shown, U-shaped electrode plate limiters Ⅰa0237, Ⅱa0238, and Ⅲa0239 are prefabricated plastic parts on the switch mounting plate a0218, serving to fix the electrodes. U-shaped electrode plate a0240 is installed within the three limiters as shown. Self-electrode Ⅰa0241 is made of the same material as U-shaped electrode plate a0240 and is prefabricated as a single unit. Self-electrode Ⅱa0242 is pre-positioned on the surface of the contactor a0215 of the resistance cover a0213. Self-electrode Ⅰa0241 and self-electrode Ⅱa0242 are respectively connected to wires. These wires travel downwards through a pre-installed conduit (not shown) into the base c0501, connecting to the audio source selection switch a0503 and the LED light wire from the electronic box, respectively.

[0116] During use, the user inhales forcefully, creating a negative pressure in the air intake path, forming a pressure difference with the external atmospheric pressure. When this difference reaches the opening threshold of the resistance cover a0213, the resistance cover a0213 overcomes the resistance of the tension spring and opens. The contactor a0215 rises, causing its own electrode II a0242 to contact the corresponding concave arc-shaped part of the U-shaped electrode plate a0240. The own electrode II a0242 then conducts electricity with its own electrode I a0241, and current is transmitted from its own electrode II a0242 through the U-shaped electrode plate a0240 to the... The self-electrode Ia0241 is then transmitted via wires to the corresponding contacts within the base c0501. As the user's inhalation force increases, the opening angle of the resistance cover a0213 also increases, and the U-shaped electrode a0240 moves upward accordingly. During this process, the self-electrode IIa0242 and the self-electrode Ia0241 remain in a conductive state. When the user stops inhaling, the U-shaped electrode a0240 automatically resets due to its elasticity, and the reset is precise due to the limitation of the U-shaped electrode limiter 1a0237. The air and electrical effects caused by the opening of the resistance cover a0213 are the same as in Example 1.

[0117] The above embodiments are only some embodiments of the present invention and do not constitute any limitation on the present invention. Any simple modifications, changes and equivalent structural changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A respiratory system muscle exerciser characterized by The host is divided into five layers, the first layer from top to bottom is an electronic box mainly used for installing electronic components, and the fifth layer is a base (c0501); the third layer plays a role of connecting the upper and lower layers and is a circular plate structure, referred to as a connecting plate (c0301); the first layer, the third layer and the fifth layer are connected and fixed by three to four hollow cylindrical connecting columns (c0201); the connecting columns (c0201) are integrally formed with the three layers, the upper end of the connecting columns (c0201) is stopped in and opened in the electronic box, and the lower end is stopped in and opened in the base (c0501); the connecting columns (c0201) not only play a role of connection and fixation, but also play a role of conveying oxygen and passing through a wire; the upper surface of the connecting plate (c0301) is the second layer used for installing an air inlet resistance generating assembly, a gas conveying pipeline and a drug gas generating component; the lower surface of the connecting plate (c0301) is the fourth layer used for installing an air inlet resistance adjusting component; The electronic box is a hollow flat round box, a differential pressure sensor is installed in the inside of the electronic box; a detachable electronic box cover (c0101) is arranged on the top of the electronic box, a ring-shaped soft sealing ring is pre-installed on the outer wall of the bottom of the electronic box, a large hole is arranged in the center of the ring-shaped soft sealing ring as a gas conveying pipe air inlet (a0105), the gas conveying pipe air inlet (a0105) is not communicated with the inner cavity of the box and is integrally formed with a gas conveying pipe (a0104) pre-installed in the inside of the electronic box; three small openings are arranged around the gas conveying pipe air inlet (a0105) and are communicated with the inside of the electronic box through short pipes, the three short pipes are respectively a pressure sensor measurement interface (a0103), a box inner oxygen interface (a0102) and an exhalation measurement pipe (a0107); a short pipe-shaped gas conveying pipe air outlet (a0101) for conveying gas, a display screen mounting hole (c0103) and a reserved expansion hole (c0105) are arranged on the ring-shaped surface of the electronic box, and a plurality of small holes are further arranged as air pressure balance windows (c0102); A drug gas generator (a0201) is installed on the upper half of the second layer, the drug gas generator (a0201) is in a funnel shape, the upper end of the drug gas generator (a0201) is provided with a horn opening with the same diameter as the soft sealing ring (a0106) on the bottom of the electronic box, the inner cavity of the drug gas generator (a0201) is provided with a drug cotton pad stop ring (a0207) and a drug cotton pad fixing clamp (a0208) for installing a drug cotton pad and supporting the drug cotton pad; a gas shunt (a0209) similar to a top is arranged below the drug gas generator (a0201), a gas conveying short pipe is arranged below the gas shunt (a0209), and a sealing washer and a drug gas generator O-shaped sealing ring (a0202) are sequentially pre-installed on the lower end of the gas conveying short pipe; the horn opening at the upper end of the drug gas generator is in close contact with the soft sealing ring (a0106) on the bottom of the electronic box, thereby forming a relatively closed small space with only an up-down channel, referred to as a drug gas chamber, and the drug gas chamber is communicated with the inner cavity of the electronic box through three short pipes pre-installed on the bottom of the electronic box; The lower half of the second layer is installed with an air intake resistance generating assembly, which is composed of a resistance cover (a0213), a tension spring under the resistance cover, a tension spring seat (a0216) and a tension spring rod, a shaft sleeve (a0214) at one end of the resistance cover, a resistance cover seat (a0211), a shaft support (a0210), a light touch switch (a0220), a switch mounting plate (a0218), a circular resistance base plate (a0212) attached to the resistance cover seat (a0211) and the shaft support (a0210), and a gas collector assembly around the resistance base plate; The resistance cover (a0213) is a thin plate-shaped object with an irregular shape with a circular middle and two extensions on both sides. A protrusion in the shape of a bean curd block, called a contactor (a0215), is pre-fabricated on the upper surface of one extension and used to push the key of the light touch switch (a0220). The other extension is pre-fabricated into a shaft sleeve (a0214) with a small central channel and cooperates with the shaft support (a0210) to be inserted into the rotating shaft, allowing the resistance cover to rotate along the rotating shaft; The lower surface of the circular part of the resistance cover (a0213) is pre-fabricated with an elongated tension spring seat (a0216) with the same longitudinal axis as the long axis of the resistance cover (a0213) and perpendicular to the rotating shaft of the resistance cover (a0213). A tension spring rod hole (a0217) is pre-fabricated along the long axis of the tension spring seat (a0216) for the tension spring rod to pass through; The resistance cover seat (a0211) is a circular high ring, with the lower part being an integral part of the resistance base plate (a0212) and the upper part seamlessly contacting the circular part of the resistance cover, both of which form the air intake port for controlling the air intake amount; The resistance base plate (a0212) is a circular thin plate, slightly larger than the resistance cover seat (a0211), with a pair of shaft supports (a0210) pre-fabricated on its surface, combined with the shaft sleeve (a0214) to form a rotating shaft, around which the resistance cover (a0213) rotates to open or close the air intake port. A switch mounting plate (a0218) is provided on one side of the resistance cover seat (a0211), with a light touch switch fixing hole and a matching stopper pre-fabricated on the surface of the switch mounting plate (a0218). A larger hole is pre-fabricated on one side of the center of the resistance base plate (a0212) as a base plate air intake hole, with the same diameter as the inner diameter of the resistance cover seat (a0211). The high ring inner cavity of the resistance cover seat (a0211) is concentric with the base plate air intake hole, pre-fabricated on the resistance base plate (a0212). The edge of the resistance base plate (a0212) is pre-fabricated with 2-3 small holes, called resistance base plate alignment holes (a0226), used to connect with the resistance base plate alignment pile (c0303) on the connecting plate (c0301) to ensure that the base plate air intake hole is concentrically combined with the connecting plate air intake hole (c0302) on the connecting plate (c0301), and after the combination, the resistance base plate (a0212) cannot move; The gas collecting pipe assembly is composed of three parts, the central one is a round short pipe, called gas collecting pipe, concentric with the connecting plate (c0301), prefabricated on the connecting plate (c0301), the inner diameter of the gas collecting pipe is slightly larger than the inner diameter of the resistance base plate, and the resistance base plate (a0212) can be just put into the gas collecting pipe; the bottom of the gas collecting pipe cavity is the central area of the connecting plate, which has the prefabricated connecting plate air inlet hole and resistance base plate alignment pile (c0303); the upper half of the outer wall of the gas collecting pipe is pre-installed with two O-shaped sealing rings (a0205), and the lower half is prefabricated with gas collecting pipe threads (a0206); the other two parts are called sealing sliding sleeve (a0203) and top ring (a0204), the inner wall of the top ring (a0204) is prefabricated with threads matching the gas collecting pipe threads (a0206), which can be screwed on the gas collecting pipe, and the inner cavity of the sealing sliding sleeve (a0203) is slightly smaller than the O-shaped sealing ring (a0205), which can be sleeved on the upper half of the gas collecting pipe; in use, rotate the top ring (a0204), the top ring (a0204) pushes the sealing sliding sleeve (a0203) upwards, the sealing sliding sleeve (a0203) moves upwards and is sleeved with the gas generator O-shaped sealing ring (a0202) above it, and the gas generator (a0201) is lifted up, the flared mouth of the gas generator presses the soft sealing ring (a0106) at the bottom of the electronic box, so that the whole second layer part is connected into one; The main body of the third layer is a circular connecting plate, the upper surface of which is prefabricated with a gas collecting pipe, a connecting plate air inlet hole (c0302) and a resistance base plate alignment pile (c0303); the connecting plate air inlet hole (c0302) is circular, and its center is located on one side of the center of the connecting plate (c0301), and the two are not concentric; the gas collecting pipe and the connecting plate are concentric, and the diameter of the connecting plate air inlet hole (c0302) is the same as that of the resistance base plate air inlet hole; the resistance base plate alignment pile (c0303) is located around the connecting plate air inlet hole (c0302) and has 2-3 short and thin solid cylinders to ensure that the base plate air inlet hole and the connecting plate air inlet hole are concentrically engaged; The fourth layer is below the connecting plate and is used for installing the air suction resistance adjusting device; the resistance adjusting device has two types, one is a rack clip spring adjuster group, and the other is a reel adjuster group; The rack clip spring adjuster assembly is composed of the following parts: a door frame type fixing frame (a0403) with a rack and a sliding adjuster (a0401); The door frame type fixing frame (a0403) has a door frame shape, two door frame columns (a0412) and two cross beams, and the inner side of the door frame column (a0412) is prefabricated with several symmetrical grooves, called racks (a0413); The sliding adjuster (a0401) is rectangular in shape, and its main body is composed of two square box-like structures which are mutually opposite, and the transverse diameter is slightly smaller than the distance between the two door frame uprights (a0412). The two box-like structures are respectively referred to as a bottom box (a0404) and a face box (a0411). The bottom box (a0404) is provided with a surrounding edge (a0405) which is higher than the edge of the box around the four sides, and the height of the surrounding edge (a0405) is the same as the depth of the inner cavity of the face box (a0411), that is, the two boxes can be tightly fitted and embedded. The surrounding edge (a0405) prevents the face box (a0411) from moving up, down, left and right when the two boxes are completely embedded or partially embedded. A fixing bolt (a0402) is pre-prepared in the center of the bottom box (a0404), and the length of the fixing bolt (a0402) exceeds the thickness of the box after the two boxes are embedded. A circular hole is pre-prepared in the center of the face box (a0411), and the diameter of the circular hole is slightly larger than the fixing bolt (a0402). After the two boxes are embedded and the nut is screwed in, the front and back movement of the face box (a0411) is prevented, and the two boxes are integrated into one. The lower side walls of the two boxes are symmetrically pre-prepared with two rectangular small holes. A U-shaped clip made of elastic material, referred to as an elastic clip (a0406), is pre-installed in the space of the two boxes. The two ends of the elastic clip (a0406) extend outward to form clip heads (a0407). The clip heads (a0407) extend out of the rectangular small holes, and the shape of the extended part is suitable for the groove of the inner rack (a0413) of the door frame upright (a0412), and can be embedded into the groove. The U-shaped part of the elastic clip (a0406) is pre-prepared to be elliptical, referred to as a sliding groove (a0408), which is fitted on the fixing column (a0409) pre-prepared on the upper half of the bottom box (a0404). When the elastic clip (a0406) is deformed, the sliding groove (a0408) can move up and down for a short distance, but cannot move left and right. A short column is pre-prepared in the center of the back side of the bottom box (a0404), and a shallow groove is pre-prepared on the side of the short column facing downward, which is used for installing a tension spring ring. The closed surfaces of the two boxes extend to the two sides to form wings (a0410). The wings (a0410) of the two boxes form a groove which is suitable for the door frame upright (a0412). After the two boxes are completely embedded, the distance between the wings (a0410) is slightly smaller than the thickness of the door frame upright (a0412). The reel adjusting group is composed of a reel holder, a reel (a0416), a reel adjusting knob (a0414), a pull wire and a reel brake nut (a0415). The reel holder is prefabricated on the upper surface of the base and used for mounting the reel (a0416). The reel (a0416) is a long and smooth cylindrical body, which can be hollow or solid. The reel (a0416) has a small hole in the center, which is a pull wire through hole (a0417) for passing and fixing the pull wire. The reel adjusting knob (a0414) and the reel brake nut (a0415) are located at both ends of the reel. The reel adjusting knob (a0414) is prefabricated as a whole with the reel and has a thread at the end of the reel brake nut. The lower end of the pull wire is connected with the reel pull wire through hole (a0417), and the upper end of the pull wire is connected with the metal ring at the end of the pull spring from the resistance cover. When the reel adjusting knob is rotated, the reel is rotated, the pull wire is wound on the reel, the pull spring is elongated, the spring force borne by the resistance cover is increased, and the reel brake nut (a0415) can fix the position of the reel at any time to prevent the reel from rotating and causing the air intake resistance adjustment to be inaccurate. The fifth layer is the base, which is in the shape of a trapezoidal platform with a large lower part and a small upper part. The upper surface of the platform is prefabricated or installed with the air intake resistance adjusting group. The lower part of the platform is a closed cavity with a cover. The cavity has the following main components: a connecting column base inlet (a0502), a battery box (a0506), a power switch (a0505), an oxygen seat (a0507) and an oxygen input conduit interface (a0508). One end of the oxygen seat (a0507) is prefabricated as a whole with one of the connecting column base inlets (a0502), and the other end is the oxygen input conduit interface (a0508), which is arranged in the base cavity and used for connecting with an oxygen generator or an oxygen storage device outside the main machine. The corresponding wall of the base has a hole, which is called an oxygen conduit inlet (a0501) and used for passing through the oxygen connecting hose and externally connected to the oxygen generator, an oxygen cylinder or an oxygen bag. The battery box (a0506) is used for mounting the battery and providing power for various electronic elements in the electronic box.

2. The respiratory system muscle exerciser according to claim 1, characterized in that The adopted microswitch is a single-acting plate switch, which is mainly composed of four parts and packaged in a small plastic box. A metal sheet fixed at the top of the inner cavity of the switch box serves as a fixed electrode (a0248), and a hole fixed electrode contact (a0255) connected with a wire is provided at the tail of the fixed electrode (a0248). A metal sheet located in the middle of the inner cavity of the switch box serves as a moving electrode (a0247), and a central left part of the moving electrode (a0247) is preformed with an inner shaft (a0250) perpendicular to the long axis of the moving electrode (a0247). A moving electrode contact (a0251) is preformed at the right end of the moving electrode (a0247) corresponding to the surface of the fixed electrode (a0248). An asymmetric U-shaped metal spring sheet (a0246) is installed at the bottom of the switch box, and a hole moving electrode contact (a0254) connected with a wire is provided at one end of the lower sheet of the U-shaped metal spring sheet (a0246). A U-shaped inner shaft support (a0249) is preformed at the position corresponding to the inner shaft (a0250), and the inner shaft (a0250) and the U-shaped inner shaft support (a0249) are preformed into one body to form a rotating shaft. The tail end of the upper left side of the U-shaped metal spring sheet (a0246) is in the form of a platform and closely contacts the left half part of the moving electrode (a0247) located thereon, thereby applying an upward pushing force to the moving electrode (a0247). A switch button made of plastic is installed at the right end of the lower part of the moving electrode (a0247). The button has an inner part and an outer part. The inner part of the button (a0252) is pressed downward against the switch box under the action of the downward pressure of the moving electrode, thereby preventing the rotation of the moving electrode (a0247) and keeping the moving electrode (a0247) in a horizontal state under the condition of close contact with the U-shaped metal spring sheet (a0246). The moving electrode (a0247) of the switch keeps in close contact with the U-shaped metal spring sheet (a0246) by the elastic force of the rotating shaft and the tail end of the upper left side of the U-shaped metal spring sheet (a0246), thereby ensuring the reliability of conduction. The short piece of the tail end of the upper left side of the U-shaped metal spring sheet (a0246) is used to prevent the excessive bending of the upper sheet under pressure, thereby prolonging the service life of the U-shaped metal spring sheet (a0246). An outer shaft seat (a0244) is preformed above the switch box, and a circular hole, i.e., an outer shaft hole (a0245), is provided in the center of the outer shaft seat. A circular metal rod slightly smaller than the diameter of the hole is inserted into the outer shaft hole to form a rotating shaft. A U-shaped metal spring sheet or a compression spring for resetting the switch is pre-installed at the right side of the outer shaft seat.

3. The respiratory system muscle exerciser of claim 1, wherein The adopted microswitch is a double-acting plate switch, the internal main body of which is two electrode plates, referred to as electrode plate I (a0228) and electrode plate II (a0229), the corresponding positions of the right ends of the two electrode plates are provided with upper contact points (a0234) and lower contact points (a0235), the two electrode plates maintain a relatively constant position and distance by means of a plurality of limiters, the lower right end of the electrode plate II (a0229) is provided with a switch button (a0224); when the switch button (a0224) is pushed upward, the electrode plate II (a0229) is pushed upward, and the upper contact points (a0234) and the lower contact points (a0235) are in contact with each other; the switch components are collectively packaged in a switch box, the space between the left sides of the two electrode plates is preformed into a switch shaft hole (a0221), and the switch shaft hole (a0221) is preformed in one body with the switch box; a U-shaped switch reset spring plate (a0219) or a compression spring is preinstalled above the switch box for resetting the shifted switch; the two electrode plates of the microswitch can move within a certain range in the box, and after reaching the maximum moving range in the box, an external force will push the switch to rotate along the switch shaft, and in this process, the two electrode plates continuously maintain a contact state.

4. The respiratory system muscle exerciser of claim 1, wherein The electronic box is further provided with an electronic voice chip module and a micro loudspeaker; the annular surface of the electronic box is provided with an LED lamp hole (c0104); meanwhile, the machine base is provided with a sound source selection switch (a0503) and a USB interface (a0504); the positive electrode wire of the battery is connected with the input pole of the power switch, and the negative electrode is shared by all circuits; the current output from the output pole of the power switch is divided into two paths, one of which directly goes up to the electronic box to supply power to the pressure sensor and the display screen, and this path of current is not controlled by the microswitch on the resistance generating device; the other output wire of the power switch goes up and is connected with the input pole of the microswitch, and the output wire of the microswitch goes down to the machine base cavity and is then divided into two paths, one of which is connected with the input pole of the sound source selection switch (a0503), and the output wire of the sound source selection switch (a0503) goes up to the electronic box and is connected with the electrode of the electronic voice chip module, and the other path is connected with the LED lamp wire from the electronic box.

5. The respiratory system muscle exerciser of claim 1, wherein The microswitch only needs two electrodes, and the connecting wires of the two electrodes finally return to the machine base, and the return mode is that the electrode contacts are preformed on the opposite positions of the resistance base plate and the connecting plate, then the electrode contacts of the microswitch are connected with the electrode contacts on the resistance base plate through short wires, and the wires from the machine base are connected with the electrode contacts on the connecting plate, and then they are preformed in the connecting plate and a connecting column.

6. The respiratory system muscle exerciser of claim 1, wherein The fixed bolt in the rack clamping spring adjuster group is provided with two kinds of nuts: a regular nut with a central hole and a cover nut with a central hole not passing through; when the regular nut is used, after being screwed, the wings of the two boxes will be pressed tightly against the stand, and the sliding adjuster will be positioned at any position between the door frame stands without being limited by the rack.

7. The respiratory system muscle exerciser of claim 1, wherein The differential pressure sensor is a micro bidirectional differential pressure sensor.

8. The respiratory system muscle exerciser of claim 7, wherein There is also an exhalation module, which is composed of an exhalation resistance generation-adjustment assembly and an exhalation resistance T-shaped tube (b0201); The exhalation resistance generation-adjustment assembly is cylindrical in appearance and is composed of a sleeve (b0101) and a pressure regulating valve core; The sleeve (b0101) is cylindrical in shape, and a thread (b0102) is preformed on the inner wall of the upper end of the sleeve (b0101) to match the thread on the outer wall of the exhalation resistance T-shaped tube (b0201), and the two are fixed together by the thread; the lower end of the sleeve (b0101) has a circular support plate (b0103) in the inner cavity, and an adjusting nut (b0104) is preformed in the center of the circular support plate (b0103); the plate surface of the support plate (b0103) has several fan-shaped air outlet holes (b0105); The pressure regulating valve core is composed of a plugging cover (b0107), a compression spring (b0108), a movable cover (b0109), an adjusting bolt-nut, and a valve core frame (b0106); the plugging cover (b0107) and the movable cover (b0109) are both circular in shape, and the compression spring (b0108) is installed in the middle of the two; the three are encapsulated in the valve core frame (b0106); a circular hole is preformed in the center of the movable cover (b0109) for installing the adjusting bolt rotating head (b0111); the valve core frame (b0106) is circular in appearance, and the upper end is annular in shape; the valve core frame (b0106) is normally plugged by the plugging cover (b0107), and no gas enters or exits; the wall of the valve core frame (b0106) is not complete and has several slot-shaped air outlet holes; the lower end of the valve core frame (b0106) is circular in shape and has a circular hole in the center for the bolt to pass through; several semicircular air outlet holes (b0112) are preformed around the edge of the circular plate; The exhalation resistance T-shaped tube (b0201) is slightly thick in shape and has a horizontal tube and a vertical tube; the horizontal tube has an air inlet end and an air outlet end, and the air inlet end is longer than the air outlet end; an air inlet check valve is installed in the air inlet end; an exhalation pressure measuring tube seat (b0204) is preformed on the surface of the horizontal tube, and a differential pressure sensor connecting tube (b0205) is inside the exhalation pressure measuring tube seat (b0204); the differential pressure sensor connecting tube (b0205) is connected to the pressure sensor measuring end in the main machine electronic box through a communication hole (b0207) preformed on the tube wall; the communication hole (b0207) is located at the air outlet end of the air inlet check valve; the differential pressure sensor connecting tube (b0205) is connected to the pressure sensor measuring end in the main machine electronic box through a hose; the air inlet end of the exhalation resistance T-shaped tube (b0201) is connected to the gas outlet of the electronic box through a threaded tube; the air outlet end is connected to the human-machine interface. The differential pressure sensor, the electronic voice chip module, the wireless signal generator, and the miniature loudspeaker are preformed on a PCB board that is suitable for the inner cavity of the electronic box, and the PCB board is installed in the cavity of the box.

9. The respiratory system muscle exerciser of claim 1, wherein There are two configuration methods for the effector display screen for displaying the pressure value in the airway in real time: one is to install the display screen in the display screen mounting hole on the electronic box and connect it with the differential pressure sensor through a wire; the other configuration method is to separately configure an external pressure display on the main machine, and set a wireless transmission signal emitting module in the electronic box that is connected with the differential pressure sensor; the front end of the external pressure display is configured with a wireless signal receiver module and a battery.

10. The respiratory system muscle exerciser of claim 1, wherein ​

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