Respiratory training auxiliary device

Abstract

The invention provides a respiratory training auxiliary device, and relates to the technical field of medical care equipment. A controller is arranged on the bearing base; a hanging vertical plate is fixedly arranged at the top of the edge of one end of the bearing base in a vertically upward manner; an inhalation and exhalation cylinder, an impedance frame and a power conversion shaft seat are sequentially arranged on the vertical side wall of the mounting vertical plate from top to bottom; the upper end of the inhalation and exhalation cylinder is a closed end, the lower end of the inhalation and exhalation cylinder is a piston end, and a piston rod extending downwards is slidably arranged in the piston end. The design of the inhalation and exhalation cylinder fully considers the natural law of human respiration, and helps the user to effectively improve the strength and endurance of respiratory muscles by simulating respiration actions. The whistle-shaped filter head at the tail end of the external tube not only effectively filters impurities in the air, but also makes a clear buzzing sound in the breathing process, provides visual breathing rhythm feedback for a user, and is convenient for medical staff to accurately judge the training state and adjust a training plan in time.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care equipment, and in particular to a breathing training auxiliary device. Background Art

[0002] In the field of respiratory health, traditional respiratory training methods often lack scientificity and pertinence, and are difficult to meet the personalized needs of different users. At the same time, the training equipment has a complex structure and is inconvenient to operate, which brings many inconveniences to the daily use of users and the maintenance and management of medical staff. In addition, problems such as dry gas and temperature discomfort during respiratory training often affect the user's training experience and effect.

[0003] Specifically, traditional breathing training devices usually do not take into account the natural laws of human breathing, and only train the respiratory muscles through simple repetitive breathing movements, which makes it difficult to achieve efficient and accurate training results. At the same time, these devices often lack real-time monitoring and adjustment functions, and cannot be flexibly adjusted according to the actual situation of the user, thus limiting the improvement of training effects.

[0004] In addition, the structural design of traditional breathing training equipment is often not compact enough, and the layout of various functional components is not reasonable, which requires users to frequently adjust their posture or move the equipment during use, affecting the continuity and stability of training. In addition, the maintenance and management of the equipment is relatively complicated, requiring professionals to conduct regular inspections and repairs, which increases the cost of use and time costs.

[0005] During breathing training, dry air and uncomfortable temperature are common problems. Traditional breathing training devices often lack temperature and humidity control of breathing air, which causes users to experience dry air and discomfort in the respiratory tract after long-term training, affecting the training effect and user comfort. Summary of the invention

[0006] The present invention relates to a breathing training auxiliary device, which solves many problems existing in traditional breathing training equipment through ingenious structural design and advanced technical means, and provides users with an efficient, comfortable and adjustable breathing training experience. By simulating the natural law of human breathing, real-time monitoring and adjusting the training state, optimizing the structural design, and providing functions such as temperature and humidity control, the present invention effectively improves the effect of breathing training and the comfort of users, and injects new vitality into the development of the field of respiratory health.

[0007] The present invention provides a breathing training auxiliary device, which specifically comprises: a bearing base; a controller is provided on the bearing base; a mounting vertical plate is fixedly provided on the top of the edge of one end of the bearing base vertically upward; an inhalation and exhalation cylinder, an impedance frame and a power conversion shaft seat are arranged on the vertical side walls of the mounting vertical plate in sequence from top to bottom; the upper end of the inhalation and exhalation cylinder is a closed end, and the lower end is a piston end, and a piston rod extending downward is slidably provided in the piston end; a rocking shaft is installed on the power conversion shaft seat for horizontal rotation, one end of the rocking shaft is fixedly connected with a force adjustment wheel, a vertical impedance adjustment frame is provided on the mounting vertical plate above the force adjustment wheel, the end of the force adjustment wheel is connected to the conveying cylinder, and the other end of the conveying cylinder is fixedly connected to the bottom of the hot water tank, a heating rod for heating and a temperature sensor for temperature detection and control are built in the hot water tank, and the bottom of the hot water tank is fixedly connected to the mounting vertical plate through a supporting plate; a manual rocking frame is provided on the mounting vertical plate at the other end of the rocking shaft.

[0008] Furthermore, a cantilever is rotatably connected to the outer middle part of the impedance frame through a pin shaft, and the end of the cantilever is rotatably connected to an arc-shaped connecting plate through a pin shaft. Both ends of the connecting plate are respectively connected to rocker arms through downward rotation of the pin shaft, and the lower end of the rocker arm is rotatably sleeved with the rocker shaft.

[0009] Furthermore, the connecting plate is provided with an arc-shaped movable bar hole penetrating left and right, and the lower end of the piston rod in the inhaler and exhaler cylinder is slidably connected to the movable bar hole through a pin shaft.

[0010] Furthermore, the rocking shaft of the power conversion shaft seat is formed by connecting two "J"-shaped shafts, and the lower ends of the two rocking arms are respectively sleeved with a "J"-shaped shaft.

[0011] Furthermore, a docking tooth head is provided at the end of the rocking shaft opposite to the manual rocker, a spline is provided on the docking tooth head, and an alignment sleeve shaft is fixedly sleeved on the end of the docking tooth head close to the rocking shaft.

[0012] Furthermore, the upper end of the inhaler and exhaler cylinder is connected to an external tube for sucking external air and an internal tube for connecting to the oral cavity, a filter head is provided at the end of the external tube, and the filter head is a whistle-shaped structure, and the filter head can emit a buzzing sound when gas passes through; a heating coil is coiled on the outer wall of the inhaler and exhaler cylinder.

[0013] Furthermore, a screw is vertically threaded on the impedance adjustment frame, and the lower end of the screw is rotatably connected to an arc-shaped brake pad, which is used to contact the force adjustment wheel to generate friction on the force adjustment wheel. Two guide rods are symmetrically fixed vertically upward on the top of the brake pad, and the guide rods pass through the impedance adjustment frame upward.

[0014] Furthermore, a water supply pipe is fixed upwardly at one end of the conveying cylinder close to the force adjustment wheel, and the other end of the water supply pipe is connected to the lower end of the heating coil;

[0015] A spiral conveying auger is arranged in the conveying cylinder, and the conveying auger is fixedly connected to the force adjusting wheel. The conveying auger rotates to convey the hot water in the hot water tank to the water delivery pipe.

[0016] Furthermore, a return pipe is provided at the upper end of the hot water tank, and the return pipe is used to be connected to the upper end of the heating coil to form a circulation pipeline.

[0017] Furthermore, a crank is rotatably mounted on the manual crankshaft, and an alignment sleeve is fixedly provided at the inner end of the crank, which can be inserted into the alignment sleeve shaft, and the alignment sleeve is provided with internal teeth that can be plugged into the docking tooth head. When the crank is moved outward, the docking tooth head is separated from the internal teeth, and the rotation of the crank shaft does not drive the rotation of the crank handle. When the crank is moved inward, the docking tooth head is plugged into the internal teeth, and the rotation of the crank handle drives the rotation of the crank shaft, thereby manually and quickly reducing the intensity of breathing training.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] First of all, the device uses the bearing base as a stable foundation, and cleverly arranges the various functional components in an orderly manner by mounting vertical panels, which not only ensures the compactness of the structure, but also facilitates user operation and maintenance. The controller, as the "brain" of the entire system, can monitor and accurately adjust the operating status of each component in real time to ensure the safety and efficiency of the training process.

[0020] The design of the inhaler and exhaler fully considers the natural law of human breathing. By simulating breathing movements, it helps users effectively improve the strength and endurance of respiratory muscles. The whistle-shaped filter head at the end of the external tube not only effectively filters impurities in the air, but also emits a crisp beeping sound during the breathing process, providing users with intuitive breathing rhythm feedback, which is convenient for medical staff to accurately judge the training status and adjust the training plan in time.

[0021] The ingenious combination of the impedance frame and the rocking shaft converts the up and down movement of the piston into the rotation of the rocking shaft, which in turn drives the synchronous movement of the force adjustment wheel and the delivery auger. This design not only improves the efficiency of energy conversion, but also allows the training difficulty to be flexibly adjusted according to user needs. The rotation of the force adjustment wheel not only controls the resistance of breathing training, but also transports the hot water in the hot water tank to the heating coil through the delivery auger, providing warmth and moisture for the breathing gas, effectively alleviating the dryness and discomfort of the respiratory tract.

[0022] The heating rod and temperature sensor inside the hot water tank ensure the constant and appropriate water temperature through precise control of the controller. The heated water continuously flows back to the hot water tank through the circulation pipeline, which not only saves energy but also ensures the continuity and stability of the training process.

[0023] The brake pad and guide rod design on the impedance adjustment frame provides users with another means to adjust the difficulty of training. By adjusting the friction between the brake pad and the force adjustment wheel, users can easily change the resistance of training and further refine the training effect. At the same time, the existence of the guide rod ensures the stability and safety of the brake pad during the adjustment process.

[0024] In addition, the design of the manual rocker fully considers the different needs of users at different training stages. When users need to reduce the intensity of training or perform auxiliary training, they can simply move the rocker handle inward and plug it into the docking tooth head, and then manually rotate the rocker handle to drive the rocker shaft to rotate, thereby easily reducing the difficulty of training. This design not only improves the applicability of the device, but also provides users with a more personalized training experience.

[0025] In summary, the breathing training auxiliary device proposed in the present invention provides users with an efficient, comfortable and adjustable breathing training experience with its unique design concept and advanced technical means, and has a significant promoting effect on improving respiratory function and improving respiratory health. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0027] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0028] In the attached picture:

[0029] Figure 1 A schematic diagram of the first axial view of the present invention is shown;

[0030] Figure 2 The present invention shows Figure 1 A is a schematic diagram of the structure of the enlarged part;

[0031] Figure 3 A second axial structural schematic diagram of the present invention is shown;

[0032] Figure 4 The present invention shows Figure 3 Middle B is a schematic diagram of the structure of the enlarged part;

[0033] Figure 5 It shows a schematic diagram of the axial structure of the manual cradle and the power conversion shaft seat of the present invention in a state where the parts are separated;

[0034] Figure 6 The schematic diagram of the axial structure of the crank handle and the inner tooth part of the present invention is shown;

[0035] Figure 7The schematic diagram of the axial structure of the conveying cylinder of the present invention in a partially half-cut and separated state is shown.

[0036] Reference numerals list

[0037] 1. Load-bearing base;

[0038] 2. Controller;

[0039] 3. Mount the vertical plate;

[0040] 4. Impedance frame; 401. Cantilever; 402. Connecting plate; 4021. Movable strip hole; 403. Rocker arm;

[0041] 5. Power conversion shaft seat; 501. Rocking shaft; 5011. Docking gear head; 502. Force adjustment wheel; 503. Alignment sleeve shaft;

[0042] 6. Inhalation and exhalation cylinder; 601. External tube; 6011. Filter head; 602. Internal tube; 603. Heating coil;

[0043] 7. Impedance adjustment frame; 701. Screw rod; 702. Brake pad; 703. Guide rod;

[0044] 8. Delivery cylinder; 801. Water delivery pipe; 802. Delivery auger;

[0045] 9. Hot water tank; 901. Return pipe;

[0046] 10. Manual cradle; 1001. Crank handle; 1002. Alignment sleeve; 1003. Internal teeth. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Example 1: Please refer to Figures 1 to 7 :

[0049] The present invention proposes a breathing training auxiliary device, comprising: a bearing base 1; a controller 2 is arranged on the bearing base 1; a mounting plate 3 is fixedly arranged vertically upward on the top of the edge of one end of the bearing base 1; an inhalation and exhalation cylinder 6, an impedance frame 4 and a power conversion shaft seat 5 are arranged on the vertical side wall of the mounting plate 3 from top to bottom; the upper end of the inhalation and exhalation cylinder 6 is a closed end, and the lower end is a piston end, and a piston rod extending downward is slidably arranged in the piston end; a rocking shaft 501 is horizontally rotatably installed on the power conversion shaft seat 5, one end of the rocking shaft 501 is fixedly connected with a force adjustment wheel 502, a vertical impedance adjustment frame 7 is arranged on the mounting plate 3 above the force adjustment wheel 502, the end of the force adjustment wheel 502 is connected to a conveying cylinder 8, and the other end of the conveying cylinder 8 is fixedly connected to the bottom of a hot water tank 9, a heating rod for heating and a temperature sensor for temperature detection and control are built in the hot water tank 9, and the bottom of the hot water tank 9 is fixedly connected to the mounting plate 3 through a supporting plate; a manual rocker 10 is arranged on the mounting plate 3 at the other end of the rocking shaft 501.

[0050] Among them, the middle outer part of the impedance frame 4 is rotatably connected to a cantilever 401 through a pin shaft, the end of the cantilever 401 is rotatably connected to an arc-shaped connecting plate 402 through a pin shaft, and the two ends of the connecting plate 402 are respectively connected to a rocker arm 403 through a pin shaft for downward rotation, and the lower end of the rocker arm 403 is rotatably connected to the rocker shaft 501.

[0051] The connecting plate 402 is provided with an arc-shaped movable bar hole 4021 that runs through the left and right sides, and the lower end of the piston rod in the breathing cylinder 6 is slidably connected to the movable bar hole 4021 through a pin shaft.

[0052] The rocking shaft 501 of the power conversion shaft seat 5 is formed by connecting two "J"-shaped shafts, and the lower ends of the two rocking arms 403 are respectively connected with a "J"-shaped shaft.

[0053] A docking tooth head 5011 is disposed at one end of the rocking shaft 501 opposite to the manual rocker 10 , and a spline is disposed on the docking tooth head 5011 . An alignment sleeve shaft 503 is fixedly disposed on one end of the docking tooth head 5011 close to the rocking shaft 501 .

[0054] The upper end of the inhalation and exhalation cylinder 6 is connected with an external tube 601 for sucking external air and an internal tube 602 for connecting to the oral cavity. A filter head 6011 is provided at the end of the external tube 601. The filter head 6011 is a whistle-shaped structure. The filter head 6011 can emit a buzzing sound when gas passes through.

[0055] A heating coil 603 is wound around the outer wall of the breathing tube 6 .

[0056] Among them, a screw rod 701 is vertically threaded on the impedance adjustment frame 7, and the lower end of the screw rod 701 is rotatably connected to an arc-shaped brake pad 702, and the brake pad 702 is used to contact with the force adjustment wheel 502 to generate friction force on the force adjustment wheel 502, and two guide rods 703 are fixed vertically upward symmetrically on the top of the brake pad 702, and the guide rods 703 pass through the impedance adjustment frame 7 upward.

[0057] Among them, a water supply pipe 801 is fixed upwardly at one end of the conveying cylinder 8 close to the force adjustment wheel 502, and the other end of the water supply pipe 801 is connected to the lower end of the heating coil 603;

[0058] A spiral conveying auger 802 is provided in the conveying cylinder 8 . The conveying auger 802 is fixedly connected to the force adjustment wheel 502 . The conveying auger 802 rotates to convey the hot water in the hot water tank 9 to the water delivery pipe 801 .

[0059] Among them, a return pipe 901 is provided at the upper end of the hot water tank 9, and the return pipe 901 is used to be connected with the upper end of the heating coil 603 to form a circulation pipeline.

[0060] Embodiment 2, on the basis of embodiment 1, a crank 1001 is rotatably mounted on a manual crank 10, an alignment sleeve 1002 is fixedly mounted on the inner end of the crank 1001, the alignment sleeve 1002 can be inserted into the alignment sleeve shaft 503, the alignment sleeve 1002 is provided with inner teeth 1003 which can be plugged into the docking tooth head 5011, the crank 1001 moves outward, the docking tooth head 5011 is separated from the inner teeth 1003, the rotation of the rocking shaft 501 does not drive the crank 1001 to rotate, the crank 1001 moves inward, the docking tooth head 5011 is plugged into the inner teeth 1003, the rotation of the crank 1001 drives the cranking shaft 501 to rotate, thereby manually and quickly reducing the intensity of breathing training.

[0061] The working principle of this embodiment:

[0062] The device is based on a supporting base 1, and a controller 2 installed thereon is responsible for monitoring and adjusting the operating status of the entire system. A mounting plate 3 is vertically fixed to one end of the supporting base 1, providing a stable installation platform for other components.

[0063] The inhalation and exhalation cylinder 6 is located at the top of the mounting plate 3, and its closed upper end is connected to the external environment through an external tube 601 for sucking external air, while the internal tube 602 is connected to the user's mouth to achieve breathing training. The end of the external tube 601 is equipped with a filter head 6011 with a whistle-like structure, which not only filters the air, but also emits a buzzing sound when the gas passes through, providing the user with auditory feedback of the breathing rhythm, so that medical staff can understand the training status in a timely and clear manner. The piston end of the inhalation and exhalation cylinder 6 is slidably provided with a piston rod, and the up and down movement of the piston rod simulates the breathing action.

[0064] The lower end of the piston rod is slidably connected to the connecting plate 402 in the impedance frame 4 through the movable bar hole 4021. This design allows the movement of the piston to be converted into the swing of the connecting plate 402, and then drives the rocking shaft 501 to rotate on the power conversion shaft seat 5 through the rocking arm 403. The rocking shaft 501 is formed by two "J"-shaped shafts connected together, ensuring the stability of the structure and the smoothness of the movement.

[0065] The force adjustment wheel 502 is fixedly connected to one end of the rocking shaft 501, and the user can adjust the difficulty of the training by rotating the force adjustment wheel 502. The end of the force adjustment wheel 502 is connected to the conveying cylinder 8, and a spiral conveying auger 802 is arranged inside the conveying cylinder 8, which is fixedly connected to the force adjustment wheel 502, so the rotation of the force adjustment wheel will drive the conveying auger 802 to rotate, thereby conveying the hot water in the hot water tank 9 to the heating coil 603 through the water delivery pipe 801, providing heat energy for the breathing cylinder 6, and keeping the breathing gas warm and moist. A heating rod and a temperature sensor are installed inside the hot water tank 9, and the power of the heating rod is adjusted by the controller 2 to maintain the constant water temperature in the hot water tank 9. The heated water flows back to the hot water tank 9 through the return pipe 901 to form a cycle.

[0066] The screw rod 701 on the impedance adjustment frame 7 contacts the force adjustment wheel 502 by rotating the connected brake pad 702, thereby generating friction, thereby adjusting the rotation resistance of the force adjustment wheel and further adjusting the difficulty of the breathing training. The guide rod 703 on the top of the brake pad 702 ensures the stability of the brake pad during the adjustment process.

[0067] At the other end of the rocking shaft 501, the manual rocker 10 provides the user with a manual auxiliary training function. The crank handle 1001 cooperates with the alignment sleeve 503 and the docking tooth head 5011 on the rocking shaft 501 through the alignment sleeve 1002 at the inner end. When the user needs to connect the manual rocker to the rocking shaft, he only needs to move the crank handle 1001 inwards so that the spline on the docking tooth head 5011 is plugged with the inner teeth 1003 in the alignment sleeve 1002. At this time, the rotation of the crank handle 1001 can drive the rocking shaft 501 to rotate, thereby manually reducing the intensity of breathing training. When the user does not need manual assistance, he only needs to move the crank handle 1001 outwards so that the docking tooth head 5011 is separated from the inner teeth 1003, and the rotation of the rocking shaft 501 no longer drives the crank handle 1001 to rotate.

Claims

1. A breathing training auxiliary device; comprising: A bearing base (1); a controller (2) is arranged on the bearing base (1); the characteristic is that a mounting plate (3) is fixedly arranged vertically upward on the top of the edge of one end of the bearing base (1); an inhalation and exhalation cylinder (6), an impedance frame (4) and a power conversion shaft seat (5) are arranged on the vertical side wall of the mounting plate (3) in order from top to bottom; the upper end of the inhalation and exhalation cylinder (6) is a closed end, and the lower end is a piston end, and a piston rod extending downward is slidably arranged in the piston end; a rocking shaft (501) is installed on the power conversion shaft seat (5) for transverse rotation, and one end of the rocking shaft (501) is fixed A force adjustment wheel (502) is connected, a vertical impedance adjustment frame (7) is provided on the mounting plate (3) above the force adjustment wheel (502), the end of the force adjustment wheel (502) is connected to the conveying cylinder (8), the other end of the conveying cylinder (8) is fixedly connected to the bottom of the hot water tank (9), a heating rod for heating and a temperature sensor for temperature detection and control are built into the hot water tank (9), and the bottom of the hot water tank (9) is fixedly connected to the mounting plate (3) through a supporting plate; a manual rocker (10) is provided on the mounting plate (3) at the other end of the rocking shaft (501).

2. A breathing training auxiliary device according to claim 1, characterized in that: The middle outer portion of the impedance frame (4) is rotatably connected to a cantilever (401) via a pin, the end of the cantilever (401) is rotatably connected to an arc-shaped connecting plate (402) via a pin, the two ends of the connecting plate (402) are respectively rotatably connected to rocker arms (403) via pins, and the lower end of the rocker arm (403) is rotatably sleeved with the rocker shaft (501).

3. A breathing training auxiliary device according to claim 2, characterized in that: The connecting plate (402) is provided with an arc-shaped movable bar hole (4021) penetrating from left to right, and the lower end of the piston rod in the inhalation and exhalation cylinder (6) is slidably connected to the movable bar hole (4021) via a pin shaft.

4. A breathing training auxiliary device according to claim 2, characterized in that: The rocking shaft (501) of the power conversion shaft seat (5) is formed by butting two "J"-shaped shafts, and the lower ends of the two rocking arms (403) are respectively sleeved with one "J"-shaped shaft.

5. A breathing training auxiliary device according to claim 1, characterized in that: The end of the rocking shaft (501) opposite to the manual rocking frame (10) is provided with a docking tooth head (5011), on which a spline is provided, and an end of the docking tooth head (5011) close to the rocking shaft (501) is fixedly covered with an alignment sleeve shaft (503).

6. A breathing training auxiliary device according to claim 1, characterized in that: The upper end of the inhalation and exhalation cylinder (6) is connected to an external tube (601) for sucking external air and an internal tube (602) for connecting to the oral cavity. A filter head (6011) is provided at the end of the external tube (601). The filter head (6011) is a whistle-shaped structure. The filter head (6011) can emit a buzzing sound when gas passes through. A heating coil (603) is wound around the outer wall of the inhalation and exhalation cylinder (6).

7. A breathing training auxiliary device according to claim 1, characterized in that: A screw rod (701) is vertically screwed onto the impedance adjustment frame (7), and an arc-shaped brake pad (702) is rotatably connected to the lower end of the screw rod (701). The brake pad (702) is used to contact the force adjustment wheel (502) to generate friction force on the force adjustment wheel (502). Two guide rods (703) are fixed vertically upwardly and symmetrically on the top of the brake pad (702), and the guide rods (703) pass through the impedance adjustment frame (7) upward.

8. A breathing training auxiliary device according to claim 6, characterized in that: A water supply pipe (801) is fixedly provided upwardly at one end of the conveying cylinder (8) close to the force adjustment wheel (502), and the other end of the water supply pipe (801) is connected to the lower end of the heating coil (603); The conveying cylinder (8) is provided with a spiral conveying auger (802), which is fixedly connected to the force adjustment wheel (502). The conveying auger (802) rotates to convey the hot water in the hot water tank (9) to the water delivery pipe (801).

9. A breathing training auxiliary device according to claim 8, characterized in that: The upper end of the hot water tank (9) is provided with a water return pipe (901), and the water return pipe (901) is used to communicate with the upper end of the heating coil (603) to form a circulation pipeline.

10. A breathing training auxiliary device according to claim 5, characterized in that: The manual rocker (10) is rotatably mounted with a crank (1001), the inner end of the crank (1001) being fixedly provided with an alignment sleeve (1002), the alignment sleeve (1002) being insertable and sleeved on the alignment sleeve shaft (503), the alignment sleeve (1002) being provided with internal teeth (1003) which can be plugged with a docking tooth head (5011), the crank (1001) being moved outward, the docking tooth head (5011) being separated from the internal teeth (1003), the rocker shaft (501) being rotated without causing the crank (1001) to rotate, the crank (1001) being moved inward, the docking tooth head (5011) being plugged with the internal teeth (1003), the crank (1001) being rotated to cause the rocker shaft (501) to rotate, and the intensity of the breathing training being manually and quickly reduced.

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