Integrated intelligent respiratory rehabilitation and sputum excretion trainer
By using a closed-loop control system consisting of a motor, piston, and sensor, the vibration frequency of the sputum expectoration trainer can be dynamically adjusted, solving the problem of uncontrollable frequency in existing technologies and improving sputum clearance efficiency and treatment effectiveness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF GUANGZHOU MEDICAL UNIV (GUANGZHOU RESPIRATORY CENT)
- Filing Date
- 2026-04-22
- Publication Date
- 2026-05-26
AI Technical Summary
Existing sputum clearance training devices have a fixed vibration frequency that cannot be adaptively adjusted, resulting in incomplete sputum liquefaction, difficulty in moving deep sputum, low sputum clearance efficiency, and prolonged rehabilitation period.
It adopts a motor-piston-sensor closed-loop control system, which adjusts the air chamber volume by monitoring the breathing rhythm in real time, thereby achieving active and dynamic adjustment of the vibration frequency to meet the different needs of the loosening and transportation stages.
It significantly improves sputum clearance efficiency and treatment effectiveness, matches the physiological needs of different stages of sputum expectoration, and improves sputum liquefaction and mobility efficiency.
Smart Images

Figure CN122075291A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of sputum clearance training devices, specifically relating to an integrated intelligent respiratory rehabilitation and sputum clearance training device. Background Technology
[0002] Sputum clearance and respiratory training devices belong to the field of medical device technology and are mainly used to assist patients with chronic respiratory diseases and postoperative recovery groups in airway clearance and respiratory function training. Most existing sputum clearance and respiratory training devices are based on oscillating positive expiratory pressure (PEAP) technology. Their core structure typically includes a shell, a mouthpiece, and a built-in vibrating ball assembly. The working principle is as follows: when the user exhales through the mouthpiece, resistance is created. This resistance forms and maintains a positive pressure within the airway. This continuous positive pressure can open collapsed or narrow airways, allowing airways that were previously closed due to sputum blockage or insufficient airflow to reopen, thus clearing the way for subsequent sputum movement. Simultaneously, the airflow lifts the built-in vibrating ball, which then falls naturally under gravity. This cyclical mechanical impact generates vibration and airflow fluctuations. These oscillating waves are transmitted to the airway in the reverse direction through the airflow and to the chest wall through the cavity structure, aiming to simulate the physical effect of manual back percussion. This loosens the viscous sputum adhering to the airway wall and, with the help of the oscillating airflow, propels the sputum outward and expel it along the respiratory tract.
[0003] However, the aforementioned existing technologies have significant limitations in practical clinical applications. First, the vibration frequency generated by the vibrating ball mainly depends on the user's expiratory airflow velocity and the ball's own gravity parameters, which is a passive generation mechanism. This means that the amplitude of vibration frequency variation is small and uncontrollable, often limited to a specific low-frequency range. Second, according to the principles of respiratory physics and sputum rheology, sputum expulsion is a dynamic process, divided into different stages such as loosening, aggregation and transport, and coughing. In the loosening stage, high-viscosity sputum requires higher-frequency shear forces to break its adhesiveness; in the transport stage, lower frequencies are needed to achieve efficient movement.
[0004] Because existing technologies use a fixed vibration frequency and cannot adaptively adjust to different stages of sputum expectoration, the equipment cannot provide sufficient high-frequency shearing force in the early stages of sputum loosening, nor can it provide lower-frequency vibration to improve transport efficiency during the transport phase. This mismatch between a single frequency and the complex pathological process directly leads to problems such as incomplete sputum liquefaction and difficulty in moving deep sputum, ultimately resulting in low sputum expectoration efficiency and prolonging the patient's recovery period.
[0005] Based on this, in order to solve the above problems, an integrated intelligent respiratory rehabilitation and sputum clearance training device is proposed. Summary of the Invention
[0006] The purpose of this invention is to provide a solution to the problem, and the specific technical solution is as follows: This invention discloses an integrated intelligent respiratory rehabilitation and sputum clearance training device, comprising a housing, a vibration component and an adjustment component disposed within the housing, the vibration component and the adjustment component respectively disposed at the top and bottom ends of the housing, forming an air cavity between the vibration component and the adjustment component, the housing having an air inlet and a breathing outlet at the air cavity, and an air outlet on one side of the vibration component, the adjustment component comprising a piston and a motor, the motor being connected to the piston, a pressure sensor being disposed on the side of the piston near the air cavity, both the motor and the pressure sensor being electrically connected to a control module, the motor pushing the piston from small to large according to the breathing rhythm detected by the pressure sensor to adjust the volume of the air cavity to adapt to the vibration frequency required for sputum during the loosening and transport stages.
[0007] As a further embodiment of the present invention, the piston includes a sealing section and a movable section connected to each other. The bottom of the housing is provided with an annular vertical wall. The movable section is provided with teeth and is slidably disposed within the annular vertical wall. The motor drive shaft is provided with gears that mesh with the movable section. The motor drives the piston to rise and fall in both forward and reverse directions according to the instructions of the control module.
[0008] As a further embodiment of the present invention, the vibration assembly includes a support bowl, a vibration ball, and a blocking mechanism. The support bowl is horizontal at its center and has a through hole, and its edges gradually slope upward from the center. The vibration ball is disposed inside the support bowl and blocks the through hole. The blocking mechanism is disposed above the vibration ball and gradually rises as the vibration ball vibrates and collides.
[0009] As a further embodiment of the present invention, the blocking mechanism includes a movable plate and a guide rod. The guide rod is arranged along the axial direction of the housing. The edge of the movable plate is slidably sleeved on the guide rod. The guide rod has a damping section and a smooth section from bottom to top. The movable plate is pushed by the vibrating ball and rises sequentially in the damping section to gradually reduce the vibration frequency of the vibrating ball.
[0010] As a further embodiment of the present invention, the surface of the damping section is provided with a plurality of semi-circular protrusions, wherein the side of the semi-circular protrusions near the bottom is a damping surface with greater friction, and the side of the semi-circular protrusions near the top is a smooth surface with less friction.
[0011] As a further embodiment of the present invention, the movable plate includes an annular edge block and a circular center block. The center block is connected to the inner side of the edge block by a spring. The edge block is slidably sleeved on the guide rod. The center block has a through hole in its center.
[0012] As a further embodiment of the present invention, an on / off mechanism is provided in the air inlet, which is connected when air is inhaled through the air inlet and closed when air is exhaled through the air inlet.
[0013] As a further embodiment of the present invention, the on / off mechanism includes a flap rotatably disposed at the air inlet, two horizontal limiting plates and two inclined limiting plates disposed on both sides of the flap, the two horizontal limiting plates being centrally symmetrically arranged based on the cross section where the flap's rotation axis is located, such that the air inlet is closed when the flap abuts against the two horizontal limiting plates; the two inclined limiting plates are respectively disposed on the outer side of the two horizontal limiting plates away from the flap, such that the air inlet is opened when the flap abuts against the two inclined limiting plates.
[0014] As a further embodiment of the present invention, a resistance mechanism is provided on the exhaust port, the resistance mechanism being used to adjust the cross-sectional size of the exhaust port.
[0015] As a further embodiment of the present invention, the resistance mechanism includes a baffle rotatably disposed on the housing and located at the exhaust port, the exhaust port being eccentrically disposed based on the rotation center of the baffle, the baffle being provided with an opening, and the baffle being rotated and the overlapping area of the opening and the exhaust port being adjusted to adjust the magnitude of the exhaust port resistance.
[0016] The beneficial effects of this invention are as follows: By introducing a closed-loop control system of "motor-piston-sensor," active and dynamic adjustment of the sputum expectoration frequency is achieved. It can intelligently provide high-frequency vibration during the loosening phase and switch to low-frequency vibration during the transport phase based on the user's real-time breathing movements, matching the physiological needs of different stages of sputum expectoration. This fundamentally solves the problem of the single and uncontrollable frequency in existing technologies, significantly improving sputum clearance efficiency and treatment effectiveness. Attached Figure Description
[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the structure of the air inlet of the present invention when it is open; Figure 2 This is a schematic diagram of the air inlet closure structure of the present invention; Figure 3 for Figure 1 Enlarged diagram of point A in the middle.
[0019] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Breathing port; 3. Air inlet; 4. Piston; 5. Pressure sensor; 6. Motor; 7. Support bowl; 8. Vibrating ball; 9. Center block; 10. Edge block; 11. Guide rod; 12. Exhaust port; 13. Baffle. Detailed Implementation
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] like Figures 1-3 As shown, an integrated intelligent respiratory rehabilitation and sputum expectoration training device of the present invention includes a housing 1, a vibration component and an adjustment component disposed inside the housing 1, the vibration component and the adjustment component are respectively disposed at the top and bottom ends of the housing 1, and an air cavity is formed between the vibration component and the adjustment component. The housing 1 has an air inlet 3 and a breathing outlet 2 in the air cavity, and an air outlet is disposed on one side of the vibration component. The adjustment component includes a piston 4 and a motor 6, the motor 6 is connected to the piston 4, and a pressure sensor 5 is disposed on the side of the piston 4 near the air cavity. The motor 6 and the pressure sensor 5 are both electrically connected to the control module. The motor 6 pushes the piston 4 from small to large to adjust the volume of the air cavity according to the breathing rhythm detected by the pressure sensor 5 to adapt to the vibration frequency required for sputum in the loosening and transport stages.
[0022] The core of this embodiment lies in adjusting the vibration frequency by actively changing the air chamber volume. When the user exhales through the breathing port 2, airflow enters the air chamber. The pressure sensor 5 monitors the pressure changes generated by the user's exhalation in real time, thereby accurately sensing their breathing rhythm (such as the start of exhalation, peak value, and duration). The control module determines the current sputum clearance stage based on the data collected by the pressure sensor 5. For example, in the early stage of treatment, when the sensor detects the start of a deep exhalation, the control module determines that it has entered the "sputum loosening stage" and then instructs the motor 6 to drive the piston 4 to adjust the air chamber volume to a smaller preset value. The smaller air chamber volume makes the airflow more concentrated, resulting in a greater impact force on the vibrating ball 8, thereby inducing a higher frequency vibration to provide the high-frequency shear force required to break the adhesion of sputum. During continuous exhalation, the control module determines that it has entered the "sputum transport stage" based on a preset time model or real-time pressure change trend. At this time, the motor 6 drives the piston 4 in the opposite direction to gradually increase the air chamber volume. The increased space buffers the impact of the airflow, reducing the jumping frequency of the vibrating ball 8 to a low-frequency range that is more conducive to ciliary oscillation and directional movement of sputum. Alternatively, during an expiratory cycle, if the air pressure sensor 5 exhales a larger volume of air in the first half, it reduces the air chamber volume and increases the vibration frequency to loosen sputum. Conversely, if the exhaled volume is smaller in the second half, it expands the air chamber volume and decreases the vibration frequency to facilitate sputum expulsion. This process is continuously repeated with multiple exhalations. Throughout the entire exhalation process, the motor 6, according to the instructions from the control module, pushes the piston 4 to continuously or stepwise adjust the air chamber volume from small to large, thereby achieving dynamic adaptation to the vibration frequency.
[0023] By introducing a closed-loop control system consisting of a 6-motor, 4-piston, and sensor, active and dynamic adjustment of the sputum expectoration frequency is achieved. It intelligently provides high-frequency vibration during the loosening phase and switches to low-frequency vibration during the transport phase based on the user's real-time breathing movements, matching the physiological needs of different stages of sputum expectoration. This fundamentally solves the problem of existing technologies having a single and uncontrollable frequency, significantly improving sputum clearance efficiency and treatment effectiveness.
[0024] As a further embodiment of the present invention, the piston 4 includes a sealing section and a movable section connected to each other. The bottom of the housing 1 is provided with an annular vertical wall. The movable section is provided with teeth and is slidably disposed within the annular vertical wall. The transmission shaft of the motor 6 is provided with gears that mesh with the movable section. The motor 6 drives the piston 4 to rise and fall in both forward and reverse directions according to the instructions of the control module.
[0025] After the control module issues a command, motor 6 rotates forward or reverse, driving the movable section (equivalent to a rack) to smoothly rise or fall under the guidance of the annular vertical wall via gears. The movable section drives the entire piston 4 to move, thereby precisely changing the volume of the air chamber. The gear and rack structure features precise transmission ratio, good self-locking, and the ability to withstand large axial forces, ensuring that piston 4 can accurately stop at any specified position and resisting the disturbance of piston 4 position caused by pressure changes in the air chamber during exhalation.
[0026] The meshing transmission of the gear and rack ensures the accuracy of the air chamber volume adjustment, allowing the frequency switching to precisely correspond to the preset loosening or transportation stage, avoiding frequency inaccuracies caused by transmission slippage or structural loosening. Simultaneously, its self-locking characteristic ensures that the piston 4 position remains fixed during the stable vibration stage, thus outputting a stable and consistent vibration frequency.
[0027] As a further embodiment of the present invention, the vibration assembly includes a support bowl 7, a vibration ball 8, and a blocking mechanism. The support bowl 7 is horizontal at its center and has a through hole, and its edges gradually slope upward from the center. The vibration ball 8 is disposed inside the support bowl 7 and blocks the through hole. The blocking mechanism is disposed above the vibration ball 8 and gradually rises as the vibration ball 8 vibrates and collides.
[0028] When the user exhales, the airflow rushes upwards from the air chamber through the through-hole in the center of the support bowl 7. The airflow pressure overcomes the gravity of the vibrating ball 8, lifting it up. After the ball is lifted, the airflow channel opens, and the ball strikes the blocking mechanism above. Subsequently, the airflow pressure weakens, and the ball falls back under gravity, blocking the through-hole again, preparing for the next impact. This process repeats, generating vibration. The blocking mechanism is not fixed but gradually rises in position with each impact of the vibrating ball 8, thereby changing the jumping stroke and impact force of the vibrating ball 8, which allows for further adjustment of the frequency.
[0029] The inclined edge of the supporting bowl 7 ensures that the ball always automatically returns to the center to block the air hole, guaranteeing the continuity and stability of vibration. The introduction of a movable blocking mechanism lays the structural foundation for further fine adjustment of the vibration frequency through mechanical means, allowing frequency adjustment to be achieved not only by changes in the air chamber volume but also by combining changes in the stroke of the vibrating ball 8.
[0030] As a further embodiment of the present invention, the blocking mechanism includes a movable plate and a guide rod 11. The guide rod 11 is arranged along the axial direction of the housing 1. The edge of the movable plate is slidably sleeved on the guide rod 11. The guide rod 11 has a damping section and a smooth section from bottom to top. The movable plate is pushed by the vibrating ball 8 and rises sequentially in the damping section to gradually reduce the vibration frequency of the vibrating ball 8.
[0031] In the initial stage of expectoration, the movable plate is located at the beginning of the damping section at the bottom of the guide rod 11. When the vibrating ball 8 is first lifted, it impacts the movable plate. Due to the high friction in the damping section, the movable plate is not easily bounced off, but rather some of the ball's kinetic energy is consumed, making the ball's fall more powerful. With each impact, the ball exerts a continuous upward thrust on the movable plate, causing it to overcome the friction in the damping section and slowly, in a step-like manner, "climb" upwards along the damping section. As the movable plate rises, the upper limit of the vibrating ball 8's bounce continuously increases, and its bounce stroke also increases accordingly. According to the principles of physics, under the same airflow, an increased stroke leads to a decrease in vibration frequency. When the movable plate finally climbs past the damping section and enters the smooth section, the friction decreases sharply, and the movable plate, under the influence of gravity, accumulates energy and falls to reset, only to be impacted and lifted again by the vibrating ball 8 in the next expiratory cycle.
[0032] As a further embodiment of the present invention, the surface of the damping section is provided with a plurality of semi-circular protrusions, the side of the semi-circular protrusions near the bottom being a damping surface with greater friction, and the side of the semi-circular protrusions near the top being a smooth surface with less friction.
[0033] As the moving plate moves upward from the bottom, it first contacts the lower slope (damping surface) of the semi-circular protrusion, requiring significant friction to climb it. Once the moving plate passes the highest point of the protrusion, it enters the upper slope (smooth surface), where friction decreases instantly, and the moving plate quickly slides towards and stops in the groove between the two protrusions or at the bottom of the next protrusion. This design makes the upward movement of the moving plate no longer a continuous slide, but a step-by-step, bouncy ascent with a sense of "pause." Each semi-circular protrusion represents a stable vibration frequency level, and the moving plate pauses briefly at each level before moving to the next. Furthermore, this structure allows the moving plate to descend without significant friction during upward movement, under its own weight after an exhalation cycle, once the significant friction required for upward movement is overcome.
[0034] By designing "semi-circular protrusions and irregularly shaped friction surfaces," continuous frequency changes are transformed into clear, step-like frequency switching. The advantage of this step-by-step adjustment is that it provides multiple stable frequency plateaus of sustained duration for the sputum loosening and transport process, avoiding the problem of excessively rapid frequency changes causing the sputum to lose its effective force just as it has been loosened. This design is more refined and better aligns with the clinical approach of treating patients in stages and with varying intensities.
[0035] As a further embodiment of the present invention, the movable plate includes an annular edge block 10 and a circular center block 9. The center block 9 is connected to the inner side of the edge block 10 by a spring. The edge block 10 is slidably sleeved on the guide rod 11. The center block 9 has a through hole in its center.
[0036] During its bounce, the vibrating ball 8 first impacts the center block 9 of the moving plate. Since the center block 9 is flexibly connected to the edge block 10 via a spring, it can absorb and buffer the impact force of the ball to a certain extent, generating its own micro-vibrations. These micro-vibrations can be superimposed on the overall vibration frequency, forming a more complex vibration spectrum. Simultaneously, the through-holes in the center block 9 allow some airflow to pass directly through, avoiding excessive resistance to airflow caused by the moving plate completely blocking it, thus ensuring a smooth exhalation process.
[0037] The flexible connection design of the "spring-center block 9" brings multiple benefits. First, the flexible cushioning reduces rigid collisions between the vibrating ball 8 and the moving plate, lowering noise and wear, and improving user comfort and product lifespan. Second, the secondary vibration of the center block 9 can generate a richer range of frequency components, helping to more effectively liquefy sputum of different properties. Finally, the central opening design optimizes the airflow channel, avoiding increased expiratory resistance introduced by the mechanical structure, and improving the user experience.
[0038] As a further aspect of the present invention, an on / off mechanism is provided inside the air inlet 3. The on / off mechanism is opened when the breathing port 2 is inhaled and closed when the breathing port 2 is exhaled. The on / off mechanism includes a flap rotatably disposed on the air inlet 3, two horizontal limiting plates and two inclined limiting plates disposed on both sides of the flap. The two horizontal limiting plates are arranged in a centrally symmetrical manner based on the cross section of the flap's rotation axis, so that the air inlet 3 is closed when the flap abuts against the two horizontal limiting plates. The two inclined limiting plates are respectively disposed on the outer side of the two horizontal limiting plates away from the flap, so that the air inlet 3 is opened when the flap abuts against the two inclined limiting plates.
[0039] Air inlet 3 connects to the air supply device. When the user inhales through breathing port 2, a negative pressure is created in the air chamber. The gas output from the air supply device enters air inlet 3, pushing the flap to rotate inward until it abuts against the two inclined limiting plates. At this point, air inlet 3 opens, allowing air to smoothly enter the air chamber for inhalation. When the user exhales, the air chamber is under positive pressure, and the airflow pushes the flap outward, causing it to rotate in the opposite direction until it abuts against the two horizontal limiting plates. Under the constraint of the horizontal limiting plates, the flap completely closes air inlet 3, preventing exhaled gas from leaking out of air inlet 3.
[0040] Its core function is to force the gas flow—ensuring that all airflow must pass through the vibrating component during exhalation, thereby guaranteeing the effective establishment of oscillating positive pressure and the normal activation of the vibrating ball 8; during inhalation, it can replenish fresh air from the air inlet 3, preventing the user from inhaling their own exhaled waste air. This design ensures that the airflow path of the device meets the design requirements, which is the foundation for the normal functioning of the device.
[0041] As a further aspect of the present invention, a resistance mechanism is provided on the exhaust port 12, which is used to adjust the cross-sectional size of the exhaust port 12. The resistance mechanism includes a baffle 13 rotatably disposed on the housing 1 and located at the exhaust port 12. The exhaust port 12 is eccentrically disposed based on the rotation center of the baffle 13. An opening is provided on the baffle 13. The baffle 13 rotates and adjusts the overlapping area of the opening and the exhaust port 12 to adjust the resistance of the exhaust port 12.
[0042] By rotating the baffle 13, the relative position of the opening on the baffle 13 and the lower exhaust port 12 can be changed. When the opening and the exhaust port 12 are completely aligned, the exhaust cross-sectional area is at its maximum and the exhalation resistance is at its minimum. When the baffle 13 is rotated so that the opening and the exhaust port 12 are partially aligned, the exhaust cross-sectional area decreases, and the exhalation resistance increases accordingly. Since the exhaust port 12 is eccentric, this adjustment can achieve stepless or stepped resistance changes from minimum to maximum.
[0043] Different patients, or even the same patient at different stages of recovery, require different optimal positive expiratory pressures. By rotating the baffle 13, doctors or users can easily set an expiratory resistance that is most effective in opening a collapsed airway without requiring excessive effort or causing barotrauma. This personalized resistance adjustment, complementing the aforementioned frequency adjustment, enhances the safety and effectiveness of treatment.
[0044] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.
[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.
Claims
1. An integrated intelligent respiratory rehabilitation and sputum clearance training device, characterized in that: The utility model provides a sputum suction device, including shell, vibration subassembly and adjusting subassembly are arranged in the shell, vibration subassembly and adjusting subassembly are arranged respectively in the top and bottom of shell two ends, form the air cavity between vibration subassembly and adjusting subassembly, the shell is opened with the air inlet and the breathing mouth at air cavity, and the air outlet is opened in vibration subassembly one side, adjusting subassembly includes piston and motor, the motor is connected with piston, the piston is close to the air pressure sensor of air cavity one side, the motor and air pressure sensor all are connected with control module electricity, the motor is pushed piston according to the breathing rhythm of air pressure sensor detection and adjusts the air cavity volume from small to big to adapt the vibration frequency required to sputum in loose stage and transportation stage.
2. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 1, characterized in that: The piston includes a sealing segment and a movable segment connected to each other, the bottom of the shell is provided with an annular vertical wall, the movable segment is provided with teeth and is slidably arranged in the annular vertical wall, a gear is arranged on the transmission shaft of the motor and is engaged with the movable segment, and the motor drives the piston to ascend and descend according to the positive and negative rotation instructions of the control module.
3. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 1, characterized in that: The vibration subassembly includes a support bowl, a vibration ball and a blocking mechanism, the center of the support bowl is horizontal and is provided with a through hole, the edge gradually inclines and rises from the center to the edge, the vibration ball is arranged in the support bowl and blocks the through hole, and the blocking mechanism is arranged above the vibration ball and gradually rises with the vibration and collision of the vibration ball.
4. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 3, characterized in that: The blocking mechanism includes a movable plate and a guide rod, the guide rod is arranged axially along the shell, the movable plate is slidably sleeved on the guide rod, the guide rod has a damping segment and a smooth segment from bottom to top, and the movable plate is sequentially lifted in the damping segment to gradually reduce the vibration frequency of the vibration ball under the pushing of the vibration ball.
5. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 4, characterized in that: The surface of the damping segment is provided with a plurality of semicircular protrusions, one side of the semicircular protrusion close to the bottom is a damping surface with large friction, and the other side of the semicircular protrusion close to the top is a smooth surface with small friction.
6. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 4, characterized in that: The movable plate includes a ring-shaped edge block and a circular center block, the center block is connected to the inner side of the edge block through a spring, the edge block is slidably sleeved on the guide rod, and the center block is provided with a through hole in the center.
7. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 1, characterized in that: A on-off mechanism is arranged in the air inlet, the on-off mechanism is connected according to the inspiration of the breathing mouth and is closed according to the expiration of the breathing mouth.
8. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 7, characterized in that: The on-off mechanism includes a turning plate arranged in the air inlet, two horizontal limiting plates and two inclined limiting plates arranged on both sides of the turning plate, the two horizontal limiting plates are arranged in a center-symmetric manner based on the cross section of the turning plate rotation shaft, so that the turning plate is closed when abutting against the two horizontal limiting plates, and the two inclined limiting plates are arranged on the outer sides of the two horizontal limiting plates away from the turning plate, so that the turning plate is opened when abutting against the two inclined limiting plates.
9. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 1, characterized in that: A resistance mechanism is arranged on the air outlet, and the resistance mechanism is used for adjusting the cross-sectional size of the air outlet.
10. The integrated intelligent respiratory rehabilitation and sputum excretion trainer according to claim 9, characterized in that: The resistance mechanism comprises a baffle plate rotatably arranged on the shell and located at the exhaust port, the exhaust port is arranged eccentrically based on the rotation center of the baffle plate, and the baffle plate is provided with an opening, the baffle plate rotates and adjusts the overlapping area of the opening and the exhaust port to adjust the size of the exhaust port resistance.