A breathing training device with up-to-standard feedback function
By using a high-precision pressure sensor and a modularly designed breathing trainer, the problem of existing equipment being unable to accurately quantify training and perform cleaning and maintenance has been solved, enabling instant feedback and convenient maintenance, thereby improving training effectiveness and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE SEVENTH AFFILIATED HOSPITAL SUN YAT SEN UNIV SHENZHEN
- Filing Date
- 2026-04-24
- Publication Date
- 2026-06-12
AI Technical Summary
Existing breathing trainers are difficult to quantify training accurately, cannot provide patients with immediate feedback, and are plagued by saliva contamination and cleaning and maintenance challenges, leading to risks of cross-infection and equipment malfunction.
It uses a high-precision pressure sensor to collect expiratory pressure in real time, and the main control unit determines the effectiveness of training and triggers photoacoustic feedback to achieve closed-loop control; the modular structure is designed to facilitate cleaning and maintenance.
This makes the training process quantifiable and traceable, improves training accuracy and compliance, reduces the risk of equipment failure, and optimizes rehabilitation outcomes.
Smart Images

Figure CN122183105A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of medical device technology, and in particular to a breathing trainer with a target feedback function. Background Technology
[0002] Currently, the respiratory trainers commonly used in clinical practice are mainly divided into two categories. One category is mechanical devices represented by a three-ball structure, which use air blowing to drive the ball in the cavity to rise and provide a training reference for the patient. The other category is electronic intelligent respiratory trainers, which collect respiratory parameters through built-in pressure sensing elements and use accompanying software to record and manage training data.
[0003] Long-term clinical application and device maintenance have revealed that the most prominent limitations of existing devices lie in the prevention and control of saliva contamination and cleaning. During patient training, saliva easily enters the device via airflow. However, existing devices often employ a closed or semi-closed design with integrated heat-sealing or fixed snap-fit connections, resulting in complex internal airflow channels that cannot be completely disassembled. This makes it difficult to thoroughly remove saliva through routine rinsing and wiping. Residual saliva can easily breed pathogenic microorganisms inside the device, posing a risk of respiratory cross-infection to patients with weakened immune systems post-surgery. It can also alter the weight and friction coefficient of the mechanical device's sphere, causing inaccurate training references, and can corrode the core sensors and circuit components of electronic devices, leading to equipment malfunctions and shortening the device's lifespan. Furthermore, the inability to completely disassemble and thoroughly disinfect the internal core structure of existing devices makes it difficult to meet hygiene standards for reusability and increases the cost of use for patients.
[0004] In addition, existing devices still have shortcomings in terms of training guidance; traditional mechanical devices lack clear quantitative training judgment standards and cannot provide patients with immediate positive feedback on training achievement, making it difficult to guarantee training effectiveness and patient compliance; although electronic intelligent trainers can achieve accurate collection of respiratory parameters, they are complex in structure, costly, and require smart terminals for use, making them poorly adaptable to elderly patients and difficult to popularize on a large scale in routine rehabilitation scenarios. Summary of the Invention
[0005] Therefore, the technical problem to be solved by the present invention is that existing breathing trainers are difficult to accurately quantify the training structure and cannot guarantee effective training for patients.
[0006] The above-mentioned technical problems are solved by the following technical solution: The present invention proposes a breathing trainer with a target feedback function, which includes a shell and a hollow interior; Collector, installed inside the housing; The pressure detection unit penetrates the side wall of the collector in a sealed manner, and the detection part of the pressure detection unit is located in the internal space of the collector; The control unit is electrically connected to the pressure detection unit and installed inside the housing; The control unit stores a pressure threshold and a duration threshold, and is configured to output an effective breathing training completion signal when the pressure inside the collector detected by the pressure detection unit reaches the pressure threshold and the duration reaches the duration threshold.
[0007] In a preferred embodiment of the breathing trainer with target feedback function of the present invention: a prompting unit is installed inside the outer shell, and the prompting unit is electrically connected to the control unit; The prompting unit is configured to provide an indication to the user when a valid breathing training completion signal is received.
[0008] In a preferred embodiment of the breathing trainer with achievement feedback function described in this invention: the collector includes an exhalation pipe that runs through the outer shell, and the side wall of the exhalation pipe is connected to an inhalation pipe, and both the exhalation pipe and the inhalation pipe are equipped with one-way valves.
[0009] In a preferred embodiment of the breathing trainer with target feedback function of the present invention: the collector further includes a water collection tank that is detachably connected to the exhalation tubing; The drain outlet of the water collection tank is equipped with a sealing unit; The sealing unit is used to open and close the drain outlet.
[0010] In a preferred embodiment of the breathing trainer with achievement feedback function described in this invention: the sealing unit includes a base sleeved with the drain outlet of the water collection tank, a guide plate disposed inside the base, a valve core penetrating the guide plate for sealing the drain outlet, and an elastic element for driving the valve core to reset.
[0011] In a preferred embodiment of the breathing trainer with achievement feedback function described in this invention: a material collection component is provided inside the outer shell; The bottom of the material collection component is provided with a sewage discharge hole, and a supporting frustum is provided at the center of the material collection component. The material collection component completely covers the bottom opening of the sealing unit.
[0012] In a preferred embodiment of the breathing trainer with achievement feedback function described in this invention: elastic support members are provided on both sides of the water collection tank, and the elastic support members are fastened to the side wall of the outer shell; The downward displacement of the water collection tank drives the valve core to abut against the supporting frustum, thereby causing the valve core to block the drain outlet of the water collection tank.
[0013] In a preferred embodiment of the breathing trainer with achievement feedback function described in this invention: the valve core includes a rod, and the end of the rod away from the guide plate is semi-circular.
[0014] In a preferred embodiment of the breathing trainer with achievement feedback function described in this invention: an end cap is hinged to the top opening of the outer shell, the end cap is fastened to the outer shell, and the collector is moved downward by the end cap.
[0015] In a preferred embodiment of the breathing trainer with achievement feedback function described in this invention: a detachable mouthpiece is installed at the end of the exhalation pipe away from the water collection tank.
[0016] The beneficial effects of this invention are as follows: This invention uses a high-precision pressure sensor to collect expiratory pressure in real time, and the main control unit accurately determines the effectiveness of training actions based on preset pressure and duration thresholds, simultaneously triggering photoacoustic feedback to form a closed-loop control architecture of "collection-determination-feedback"; this design solves the pain point of traditional equipment being unable to standardize the determination of training effectiveness, realizing the quantification and traceability of the training process, and improving the accuracy and compliance of training execution; at the same time, through modular design and anti-interference processing, it improves the stability of equipment operation and the convenience of maintenance, and optimizes the rehabilitation training effect. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below; obviously, the drawings described below only relate to some embodiments of the present invention, and are not intended to limit the present invention.
[0018] Figure 1 A three-dimensional structural diagram of the breathing trainer is shown; Figure 2 A top view of the breathing trainer is shown; Figure 3 It shows Figure 2 Sectional view at point AA; Figure 4 It shows Figure 3 A magnified view of section B; Figure 5 A schematic diagram of the connection structure between the collector and the outer casing is shown; Figure 6 A schematic diagram of the base in its transparent state is shown. Detailed Implementation
[0019] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0020] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.
[0021] Reference Figure 1 , Figure 2 and Figure 5 This embodiment provides a breathing trainer with a target feedback function, including a shell 1, which is hollow inside; a collector 2, which is installed inside the shell 1; and a pressure detection unit 3, which penetrates the side wall of the collector 2 in a sealed manner, and the detection part of the pressure detection unit 3 is located in the internal space of the collector 2. Control unit 4 is electrically connected to pressure detection unit 3 and installed inside housing 1; control unit 4 stores pressure threshold and duration threshold, and is configured to output a valid breathing training completion signal when the pressure inside collector 2 detected by pressure detection unit 3 reaches the pressure threshold and the duration reaches the duration threshold.
[0022] It should be noted that in this embodiment, the collector 2 is a structure with one end open and the inside closed, and a thin and narrow air hole is provided at the closed end of the collector 2 to ensure that the gas inhaled by the patient into the collector 2 can be discharged evenly and stably.
[0023] Of course, to meet the needs of installation and disassembly, collector 2 can also be assembled in a detachable manner, as long as the connection is sealed.
[0024] Specifically, in this embodiment, the pressure detection unit 3 is preferably a MEMS pressure sensor; it has advantages such as high precision, small size, fast response, easy integration, and moderate cost, which can better ensure the accuracy of pressure value detection inside the collector 2.
[0025] Meanwhile, when using a MEMS pressure sensor, it is also necessary to protect against saliva and moisture to prevent them from contacting the MEMS pressure sensor. When deploying the MEMS pressure sensor, in order to ensure the accuracy of the sensor, the contacts of the MEMS pressure sensor need to be flush with the inside of the collector 2.
[0026] To further isolate the MEMS pressure sensor from the influence of moisture, a water-proof membrane needs to be installed at the end of the MEMS pressure sensor to prevent moisture from contacting it.
[0027] Specifically, the control unit 4 is a PCB board integrated inside the housing 1, which integrates a microcontroller (such as the STM32F103 series), memory and power management circuitry.
[0028] The programs and data stored in the memory include preset pressure thresholds: for example, set to 8 kPa, with a preferred range of 5-15 kPa; and duration thresholds: for example, set to 3 seconds, with a preferred range of 2-10 seconds. These thresholds can be adjusted by the user input unit in subsequent embodiments.
[0029] The microcontroller is configured to continuously acquire the voltage signal (corresponding to the pressure value) from the pressure detection unit 3 via the ADC channel after power-on initialization; determine in real time whether the acquired pressure value is greater than or equal to the preset 8kPa (pressure threshold); if it is, start the internal timer to begin timing; continuously monitor the pressure value during the timing process; if the pressure value remains above 8kPa within 3 seconds (duration threshold), the breathing training is deemed valid; then, the microcontroller outputs a high-level pulse signal through the GPIO pin as a signal indicating that the breathing training is complete.
[0030] If the pressure value drops below 8 kPa before the timer reaches 3 seconds, the timer is reset, the current judgment is terminated, and the system waits for the next pressure to reach the target.
[0031] Reference Figure 5 and Figure 2 As an optional embodiment, a prompting unit 5 is installed inside the housing 1, and the prompting unit 5 is electrically connected to the control unit 4; The prompting unit 5 is configured to provide an indication to the user when a valid breathing training completion signal is received.
[0032] In some embodiments, a prompting unit 5 is installed inside the housing 1, and the prompting unit 5 is electrically connected to the control unit 4; the prompting unit 5 is configured to provide an indication to the user in response to a signal indicating that effective breathing training has been completed.
[0033] Specifically, the prompting unit 5 is installed inside the front of the housing 1, and its operation interface corresponds to the through hole opened on the surface of the housing 1 so as to facilitate user observation and perception; the prompting unit 5 is electrically connected to the printed circuit board PCB of the control unit 4 through a ribbon cable; more specifically, the positive and negative power terminals and signal input terminals of the prompting unit 5 are respectively connected to the corresponding general-purpose input / output pins and power network of the microcontroller of the control unit 4.
[0034] In a first implementation, the prompting unit 5 includes an LED light 51; the LED light 51 may be a tri-color LED light, and its default state is off; the LED light 51 is configured to emit different colors of light according to the breathing training state, for example: A green light indicates that the patient's expiratory pressure and duration have reached the preset standards, completing one effective training session; A red light indicates that the patient's exhalation pressure has not reached the preset threshold; A yellow light indicates that the patient's exhalation pressure has reached the preset threshold but the duration is insufficient.
[0035] In another implementation, the prompting unit 5 includes a miniature piezoelectric buzzer 52; the buzzer 52 is configured to emit a prompting tone with a frequency in the range of 2kHz to 4kHz when a drive signal is received, and the volume is adjustable; specifically, when the patient's expiratory pressure reaches a preset threshold, the buzzer 52 emits a low-pitched beep; if the expiratory pressure remains above the preset threshold for a predetermined time (e.g., 3 seconds), the buzzer 52 emits a high-pitched beep; if the expiratory pressure is below the preset threshold, the buzzer 52 does not emit a sound.
[0036] Furthermore, in some embodiments, the prompting unit 5 includes an LED light 51, a miniature piezoelectric buzzer 52, and a counter 53 to provide a combined visual, auditory, and counting prompt. The prompting unit 5 is configured to: When the patient exhales and produces airflow, the miniature piezoelectric buzzer 52 emits a low-pitched sound. When the exhalation pressure reaches the preset threshold, LED 51 lights up and flashes; When the exhalation pressure remains above the preset threshold for a predetermined time, such as 3 seconds, the counter 53 performs a count. If the exhaled pressure falls below a preset threshold within a predetermined time, the timing will restart.
[0037] Through the above multimodal cues, patients can intuitively perceive the training process, which helps to improve their training motivation. Optionally, the cues unit 5 may also include other devices that can provide visual, auditory or tactile cues to the user, such as a display screen, a vibration motor, etc.
[0038] Reference Figures 1-6 In one embodiment provided in this application, the collector 2 includes an exhalation pipe 21 that penetrates the outer shell 1, and an inhalation pipe 22 is connected to the side wall of the exhalation pipe 21. Both the exhalation pipe 21 and the inhalation pipe 22 are equipped with one-way valves 23.
[0039] In some embodiments, to ensure normal ventilation for the patient during breathing training and to prevent liquids (such as saliva) in the collector 2 from being re-inhaled when the patient inhales, a one-way valve 23 is provided in the expiratory conduit 21; the one-way valve 23 is configured to allow airflow to pass in the direction from the patient toward the collector 2 and to prevent airflow from flowing in the opposite direction.
[0040] Specifically, when the patient exhales into the collector 2 through the exhalation tube 21, the one-way valve 23 opens, allowing the exhaled gas to enter the collector 2; when the patient stops exhaling, the one-way valve 23 automatically closes, thereby blocking the passage of the exhalation tube 21.
[0041] Furthermore, to reduce airflow resistance during inhalation, an inhalation conduit 22 is also provided on the side wall of the expiratory conduit 21, and a one-way valve 23 is also provided inside the inhalation conduit 22; the one-way valve 23 inside the inhalation conduit 22 is configured as follows: It is closed when the patient exhales to prevent gas from flowing out of the collector 2 through the inhalation tube 22; It opens when the patient inhales to allow fresh outside air to be inhaled by the patient through the inhalation tube 22.
[0042] Preferably, the inhalation tube 22 is positioned closer to the patient's mouth than the exhalation tube 21, i.e., closer to the mouthpiece. This arrangement ensures that when the one-way valve 23 in the exhalation tube 21 is closed, the patient can smoothly inhale outside air through the inhalation tube 22, thereby achieving physical separation of the exhaled and inhaled airflows.
[0043] Optionally, the one-way valve 23 can be a duckbill valve, a valve valve, or other valve structure that can achieve one-way ventilation; through the above settings, not only is the continuous supply of fresh air effectively guaranteed during training and cross-contamination of the exhalation and inhalation airways avoided, but the patient's breathing resistance is also significantly reduced, improving the comfort of use and the safety of training.
[0044] Reference Figures 1-6 In some embodiments, the collector 2 also includes a water collection tank 24 detachably connected to the exhalation tube 21; a sealing unit 6 is installed inside the drain outlet of the water collection tank 24; the sealing unit 6 is used to open and close the drain outlet.
[0045] In some embodiments, the collector 2 is used to collect liquids such as saliva and condensate from the patient's exhaled breath and is designed to be easy to clean in order to maintain the hygiene of the device.
[0046] Specifically, the collector 2 includes an exhalation tube 21 and a water collection tank 24; the water collection tank 24 is connected to the end of the exhalation tube 21 away from the mouthpiece; to ensure airtightness and prevent gas leakage during training, the connection between the exhalation tube 21 and the water collection tank 24 is achieved by a sealing gasket such as an O-ring.
[0047] The collection tank 24 is configured to contain and collect liquid flowing in from the exhalation tube 21; optionally, the bottom of the collection tank 24 may be designed to slope toward the drain to facilitate liquid collection and complete drainage.
[0048] Furthermore, to facilitate cleaning and maintenance, a drain outlet is provided at the bottom of the water collection tank 24, and a plugging unit 6 that can be opened or removed is provided at the drain outlet; the plugging unit 6 can be, for example, a stopcock, a valve or a sealing cap; when cleaning is required, the plugging unit 6 is opened or removed, and cleaning fluid such as water is continuously injected into the collector 2 to rinse the inside, and the wastewater after rinsing can be discharged through the drain outlet.
[0049] Alternatively, the collector 2 can also be implemented in other ways, such as designing the exhalation tube 21 and the water collection tank 24 to be connected in a way that can be quickly detached, or designing the water collection tank 24 itself to be a transparent and visible independent container, so that users can easily observe the liquid accumulation and clean it in a timely manner; through the above modular and easy-to-clean design, the ease of use and long-term hygiene of the device are significantly improved.
[0050] Reference Figures 1-6 In one embodiment provided in this application, the sealing unit 6 includes a base 61 that is sleeved with the drain outlet of the water collection tank 24, a guide plate 62 disposed inside the base 61, a valve core 63 that passes through the guide plate 62 for sealing the drain outlet, and an elastic member 64 for driving the valve core 63 to reset.
[0051] It should be noted that the base 61 is sleeved and fixed to the drain outlet; the guide plate 62 is slidably disposed in the base 61, and has a fan-shaped notch to form a water flow channel; the valve core 63 is a frustum-shaped structure made of rubber, which passes through the guide plate 62 and is used to seal the drain outlet; the elastic element 64, such as a spring, acts between the guide plate 62 and the water collection tank 24, and normally provides elastic force to keep the valve core 63 away from the drain outlet.
[0052] In this embodiment, the elastic element 64 is preferably a spring, with one end of the spring abutting against the surface of the guide plate 62 and the other end abutting against the drain outlet end of the water collection tank 24. The elastic potential energy released by the elastic element 64 can push the valve core 63 to move towards one end of the drain outlet, thereby realizing that the drain outlet is in the open state.
[0053] Furthermore, in order to facilitate the opening and closing of the sealing unit 6, a material collection component 7 is provided inside the outer shell 1; a drain hole 71 is provided at the bottom of the material collection component 7, and a supporting truncated cone 72 is provided at the center of the material collection component 7; the material collection component 7 completely covers the bottom opening of the sealing unit 6.
[0054] It should be noted that a material collection component 7 is installed inside the outer shell 1, and a sewage discharge hole 71 is provided at the bottom of the material collection component 7 to facilitate the discharge of sewage during the cleaning process to the outside of the outer shell 1; and a supporting truncated cone 72 is formed in the center of the material collection component 7, and the supporting truncated cone 72 has an umbrella-shaped structure, which can play a certain guiding role, so that sewage can enter the bottom of the material collection component 7.
[0055] In this example, the material collection component 7 is preferably an airbag-like covering structure, and the end of the material collection component 7 is connected to the base 61, thereby forming a structure that completely covers and seals the unit 6. The fully covered structure can effectively prevent waste liquid from entering the interior of the outer shell 1 during the cleaning process, thus preventing unnecessary pollution.
[0056] Furthermore, elastic support members 241 are provided on both sides of the water collection tank 24, and the elastic support members 241 are fastened to the side wall of the outer shell 1; the downward displacement of the water collection tank 24 drives the valve core 63 to abut against the supporting frustum 72, thereby causing the valve core 63 to block the drain outlet of the water collection tank 24.
[0057] It should be noted that elastic support members 241 are formed on both sides of the water collection tank 24, and the elastic support members 241 overlap with the side wall of the outer shell 1. When the water collection tank 24 is squeezed by a downward external force, the elastic support members 241 will deform to ensure that the water collection tank 24 can move downward a certain distance.
[0058] Specifically, as the water collection tank 24 moves downward, the valve core 63 moves downward synchronously with the water collection tank 24. When the bottom of the valve core 63 touches the supporting frustum 72, the downward movement path of the valve core 63 will be blocked. At this time, the water collection tank 24 is still moving downward, and the valve core 63 begins to move upward relative to the water collection tank 24, thereby blocking the drain outlet at the bottom of the water collection tank 24 through the valve core 63.
[0059] Furthermore, the valve core 63 includes a stem 631, and the end of the stem 631 away from the guide plate 62 is semi-circular.
[0060] It should be noted that the rod 631 is located below the guide plate 62, and the end of the rod 631 is a hemispherical structure. The hemispherical structure of the rod 631 ensures that the supporting frustum 72 and the valve core 63 are always in contact.
[0061] Furthermore, an end cap 8 is hinged to the top opening of the outer casing 1. The end cap 8 is fastened to the outer casing 1, and the collector 2 is pressed downward by the end cap 8.
[0062] It should be noted that an end cap 8 is hinged to the top opening of the outer shell 1. The end cap 8 is fastened to the top of the outer shell 1 to close the outer shell of the trainer, making it easier for the patient to hold.
[0063] Specifically, when the end cap 8 is fastened to the top opening of the outer casing 1, during the fastening process of the end cap 8 and the outer casing 1, the end cap 8 will push the water collection tank 24 downward, which can trigger the valve core 63 to block the drain outlet of the water collection tank 24.
[0064] When the end cap 8 is fastened, it presses downwards against the water collection trough 24, causing the elastic support 241 to undergo elastic deformation, and the water collection trough 24 moves downwards as a whole. During the downward movement, the rod 631 at the bottom of the valve core 63 first contacts and abuts against the supporting frustum 72 of the collecting element 7 and is thus obstructed. As the water collection trough 24 continues to move downwards, the valve core 63 moves upwards relative to the water collection trough 24, eventually pressing its frustum tightly into the drain outlet to achieve a seal. At this time, the elastic element 64 is compressed.
[0065] Cleaning state: When the end cover 8 is opened, the pressure on it is released; the compressed elastic element 64 releases its elastic force, pushing the guide plate 62 and valve core 63 downward, causing the valve core 63 to disengage from the drain port. At the same time, the elastic support 241 resets, causing the water collection tank 24 to move upward, causing the end of the valve core 63 to separate from the support frustum 72; the drain port is now fully open.
[0066] Based on the aforementioned linkage mechanism, the equipment is extremely easy to use and clean: closing the end cap 8 allows for direct use during training; opening the end cap 8 allows for rinsing of the collector 2, with wastewater flowing into the collection component 7 through the open drain and then discharged through the drain hole 71. For deep cleaning, the entire collector 2 module can be disassembled from the housing 1. Furthermore, a detachable mouthpiece 9 can be installed at the end of the exhalation pipe 21 away from the water collection tank 24 for easy replacement to maintain personal hygiene.
[0067] When a deep cleaning of the collector 2 is required, the collector 2 is removed from the inside of the outer shell 1, and then the water collection tank 24 is separated from the exhalation pipe 21. The small dead corners and gaps inside the collector 2 are cleaned evenly with a brush, and then the collector 2 is sterilized with a sterilization device to achieve the purpose of cleaning the collector 2.
[0068] Furthermore, a detachable mouthpiece 9 is installed at the end of the exhalation pipe 21 away from the water collection tank 24.
[0069] It should be noted that the mouthpiece 9 is detachably connected to the exhalation tubing 21, so that the mouthpiece 9 can be replaced according to different patients to avoid cross-use issues.
[0070] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.
[0071] Importantly, the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A breathing trainer with a target achievement feedback function, characterized in that: include, The outer shell (1) is hollow inside; Collector (2), installed inside the housing (1); The pressure detection unit (3) penetrates the side wall of the collector (2) in a sealed manner, and the detection part of the pressure detection unit (3) is located in the internal space of the collector (2); The control unit (4) is electrically connected to the pressure detection unit (3) and installed inside the housing (1); The control unit (4) stores a pressure threshold and a duration threshold and is configured to output an effective breathing training completion signal when the pressure inside the collector (2) detected by the pressure detection unit (3) reaches the pressure threshold and the duration reaches the duration threshold.
2. The breathing trainer with achievement feedback function according to claim 1, characterized in that: A prompting unit (5) is installed inside the outer casing (1), and the prompting unit (5) is electrically connected to the control unit (4); The prompting unit (5) is configured to provide an indication to the user when a valid breathing training completion signal is received.
3. The breathing trainer with achievement feedback function according to claim 1 or 2, characterized in that: The collector (2) includes an exhalation pipe (21) that runs through the outer shell (1), and an inhalation pipe (22) is connected to the side wall of the exhalation pipe (21). Both the exhalation pipe (21) and the inhalation pipe (22) are equipped with one-way valves (23).
4. The breathing trainer with achievement feedback function according to claim 3, characterized in that: The collector (2) also includes a water collection tank (24) that is detachably connected to the exhalation tube (21). The drain outlet of the water collection tank (24) is equipped with a sealing unit (6). The sealing unit (6) is used to open and close the drain outlet.
5. The breathing trainer with achievement feedback function according to claim 4, characterized in that: The sealing unit (6) includes a base (61) sleeved with the drain outlet of the water collection tank (24), a guide plate (62) disposed inside the base (61), a valve core (63) passing through the guide plate (62) for sealing the drain outlet, and an elastic element (64) for driving the valve core (63) to reset.
6. The breathing trainer with achievement feedback function according to claim 4 or 5, characterized in that: The outer shell (1) is provided with a material collecting component (7); The bottom of the collecting component (7) is provided with a drain hole (71), and a supporting truncated cone (72) is provided in the center of the collecting component (7). The material collection component (7) completely covers the bottom opening of the sealing unit (6).
7. The breathing trainer with achievement feedback function according to claim 5, characterized in that: The water collection tank (24) is provided with elastic support members (241) on both sides, and the elastic support members (241) are fastened to the side wall of the outer shell (1); The downward displacement of the water collection tank (24) drives the valve core (63) to abut against the supporting frustum (72), thereby causing the valve core (63) to block the drain outlet of the water collection tank (24).
8. The breathing trainer with achievement feedback function according to claim 7, characterized in that: The valve core (63) includes a rod (631), and the end of the rod (631) away from the guide plate (62) is semi-circular.
9. The breathing trainer with achievement feedback function according to claim 8, characterized in that: The top opening of the outer shell (1) is hinged with an end cap (8), which is fastened to the outer shell (1). The end cap (8) is used to press the collector (2) downward.
10. The breathing trainer with achievement feedback function according to any one of claims 4, 5, 7-9, characterized in that: A detachable mouthpiece (9) is installed at the end of the exhalation tube (21) away from the water collection tank (24).