Teaching aid for respiratory training

Abstract

The invention relates to the field of respiratory training devices, in particular to a respiratory training teaching aid which comprises a respiratory training device, the respiratory training device comprises a shell, a rotating bin is installed on one side in the shell, an impeller is arranged in the rotating bin, a fixing shaft is fixedly connected to the middle of the impeller, and a fixing frame is rotatably connected to the rear portion of the periphery of the fixing shaft; the fixing frame is fixedly connected to the interior of the shell, an eccentric wheel is fixedly connected to the front portion of the periphery of the fixing shaft, shifting strips are fixedly connected to the middles of the upper end and the lower end of the eccentric wheel, limiting sleeves are slidably connected to the peripheries of the shifting strips, rotating frames are fixedly connected to one sides of the limiting sleeves, and the rotating frames are rotatably connected to the front portion of the periphery of the fixing shaft. According to the invention, people are helped to judge the breathing air volume of self single training, and meanwhile, people can be assisted to observe the number of times of currently completed training, so that the situation that the training amount is wrong due to memory disorder caused by repeated training of people in the training process is avoided.

Description

Technical Field

[0001] The invention relates to the field of breathing training devices, in particular to a teaching aid for breathing training. Background Art

[0002] In today's medical and health care system, the importance of respiratory function training has become increasingly prominent, especially in the face of the increasingly severe situation of population aging. For elderly patients, traditional respiratory training methods have many disadvantages. First, most conventional training relies on simple verbal instructions from medical staff and requires patients to perform deep breathing exercises on their own. There is a lack of intuitive quantitative feedback mechanism. In particular, some elderly patients with dementia have cognitive dysfunction, memory, and attention seriously declining. It is difficult for them to accurately remember the number of training sessions, and they cannot judge by themselves whether the amount of air in each breath meets the standard. In the absence of supervision, it is very easy to miss training, repeat training, or the training intensity does not meet the standard. Secondly, elderly patients The overall physical function declines, the basic respiratory function is uneven, and the tolerance to training intensity varies greatly. Traditional training tools do not take this feature into account and cannot provide personalized training difficulty adjustment. Moreover, elderly patients, especially those with Alzheimer's disease, have poor body reserve capacity. During long-term or high-intensity respiratory training, they only rely on inhaling ordinary air. The body's oxygen supply is very likely to not keep up with the consumption rate, and symptoms of hypoxia frequently occur. This not only leads to training interruptions and affects the continuity of training, but may also cause dizziness, panic and other discomforts due to hypoxia, further aggravating the fear and rejection of training in elderly patients. Therefore, we propose teaching aids for respiratory training to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a teaching aid for breathing training.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is: a teaching aid for breathing training, including a breathing trainer, the breathing trainer includes a shell, a rotating bin is installed on one side of the shell, an impeller is arranged inside the rotating bin, a fixed shaft is fixedly connected to the middle of the impeller, a fixed frame is rotatably connected to the rear part of the outer periphery of the fixed shaft, the fixed frame is fixedly connected to the shell, an eccentric wheel is fixedly connected to the front part of the outer periphery of the fixed shaft, the middle parts of the upper and lower ends of the eccentric wheel are fixedly connected to the shifting bar, the outer periphery of the shifting bar is slidably connected to the limiting sleeve, one side of the limiting sleeve is fixedly connected to the rotating frame, the rotating frame is rotatably connected to the front part of the outer periphery of the fixed shaft, an indicator disk is arranged on the front side of the rotating frame, an indicator mark is arranged on the upper inner part of the front end of the indicator disk, a limiting ring is fixedly connected to the rear part of the outer periphery of the indicator disk, and the rear end of the limiting ring is provided with evenly distributed shifting openings, the indicator disk and the limiting ring are both rotatably connected to one side of the front part of the shell, a scale ring is arranged on the outside of the indicator disk, the scale ring is installed on the front part of the shell, and the front part of the scale ring is provided with evenly distributed scales.

[0005] Preferably, a connecting tube 1 is fixedly connected to one side of the transfer bin, an end of the connecting tube 1 away from the transfer bin is fixedly connected to the gas bin, a side of the gas bin away from the connecting tube 1 is fixedly connected to a connecting tube 2, and an end of the connecting tube 2 away from the gas bin passes through the end of the shell.

[0006] Preferably, the two ends of the connecting tube are sleeved with hoses, one end of the hose away from the connecting tube is fixedly connected to a breathing air nozzle, a sealing soft film is arranged on the inner side of a part of the breathing air nozzle away from the hose, and the sealing soft film and the breathing air nozzle are both made of soft materials.

[0007] Preferably, a tail pipe is fixedly connected to the side of the transfer bin away from the connecting pipe 1, a one-way valve 1 is installed at the end of the tail pipe away from the transfer bin, an exhaust port is opened at the upper part of the side of the tail pipe away from the transfer bin, and another one-way valve is installed inside the exhaust port.

[0008] Preferably, an adjusting knob is provided at the front of the gas compartment, the front of the adjusting knob passes through the front wall of the shell, and the adjusting knob is rotatably connected to the shell.

[0009] Preferably, a filter element is provided in the middle of the air bin, and clamps are provided at the front and rear of the filter element, a rotating shaft passes through the middle of the clamp, and an adjusting knob is fixedly connected to the front of the rotating shaft.

[0010] Preferably, the rotating shaft passes through the clamping plate and the filter element, the rotating shaft is rotatably connected to the clamping plate, and evenly distributed ventilation holes are opened on the outer side of the middle part of the clamping plate.

[0011] Preferably, guide grooves are provided on both sides of the middle of the rotating shaft, the clamps are slidably connected inside the air bin, guide pillars are fixedly connected to the inner side of the middle of the clamps, and the guide pillars are slidably connected inside the guide grooves.

[0012] Preferably, hexagonal prisms are fixedly connected to both sides of the outer circumference of the rotating shaft, and tops are provided on the upper and lower parts of the hexagonal prisms. A guide rod is fixedly connected to the middle part of one end of the top away from the hexagonal prism, and one end of the guide rod away from the top passes through the fixed block.

[0013] Preferably, the fixed blocks are fixedly connected to the upper and lower parts of the front and rear walls of the air chamber, a top spring is arranged on the side of the top head away from the hexagonal prism, the top springs are sleeved on the outer periphery of the guide rod, and the top springs are arranged between the fixed block and the top head.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. After covering the breathing nozzle, people can exhale slowly into the breathing nozzle. The exhaled air will enter the air chamber through the hose and the connecting pipe 2. Then the gas will enter the transfer chamber through the connecting pipe 1 at the other end of the air chamber and be discharged through the exhaust port at the end of the tail pipe, completing an exhalation training. At the same time, people can inhale, so that the external gas can enter through the tail pipe and be sucked out through the breathing nozzle in the opposite direction to perform inhalation training. The breathing trainer can achieve dual training of exhalation and inhalation. When performing inhalation training, people can connect the end of the tail pipe to the oxygen supply pipe, so that people can increase the oxygen content of the inhaled gas during breathing training to avoid hypoxia during training, which is beneficial to practical use.

[0015] 2. During training, the gas entering will drive the impeller to rotate, and the impeller can drive the fixed shaft to rotate. When the fixed shaft rotates, it will drive the eccentric wheel to rotate eccentrically. In this process, the dial bar on the eccentric wheel can be inserted into the dial hole on the limit ring, and the limit ring and the indicator dial are rotated, so that the indicator dial can be driven one grid. The indicator mark on the indicator dial can indicate the deflection amount of the indicator dial, which can help people judge their own breathing volume in a single training session in combination with the scale on the scale ring. At the same time, it can assist people in observing the number of training sessions currently completed, so as to avoid people repeating training during the training process, resulting in memory confusion and incorrect training volume.

[0016] 3. Before training, people can adjust the difficulty of the breathing trainer training according to their own needs by adjusting the knob. People can turn the adjusting knob according to the adjustment gear on the shell, and the adjusting knob can drive the rotating shaft to rotate. When the rotating shaft rotates, the guide groove on the rotating shaft can cooperate with the guide column on the splint, so that the splint can be moved closer or farther by the guide groove. When the splints are close, the filter element in the middle can be compressed by the splint, so that the ventilation gap on the filter element can become smaller, thereby effectively increasing the difficulty of gas passing through during training, and realizing the adjustment of the difficulty of breathing training. During training, people can perform step-by-step training from simple to difficult, which is beneficial for elderly patients with poor respiratory function to use for training.

[0017] 4. When the rotating shaft rotates one or several gears, the push head and the guide rod can be forced to separate from the upper and lower parts. Then, when it rotates to the required gear, people can stop rotating. At this time, under the action of the top spring, the push head and the guide rod can hold the upper and lower parts of the hexagonal prism, so that the adjusting knob can be limited to this gear, so that the adjusting knob will not easily go out of gear or slip without the action of external force, which is beneficial to actual training work. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a front view structural schematic diagram of the teaching aid for breathing training of the present invention; Figure 2 It is a schematic diagram of the internal structure of the teaching aid for breathing training of the present invention; Figure 3 It is a schematic diagram of the internal structure of the transfer chamber of the breathing training teaching aid of the present invention; Figure 4 It is a partial structural schematic diagram of the pull bar and eccentric wheel of the breathing training teaching aid of the present invention; Figure 5 It is a schematic diagram of the internal structure of the air chamber of the breathing training teaching aid of the present invention; Figure 6 It is a partial structural schematic diagram of the hexagonal prism and the top of the teaching aid for breathing training of the present invention; Figure 7 The present invention is a partial structural schematic diagram of the guide column and guide groove of the teaching aid for breathing training.

[0019] 1. Breathing trainer; 101. Shell; 102. Adjustment knob; 103. Indicator plate; 104. Indicator mark; 105. Scale ring; 106. Transfer chamber; 107. Limit ring; 108. Connecting pipe 1; 109. Air chamber; 110. Connecting pipe 2; 111. Hose; 112. Sealing film; 113. Breathing nozzle; 114. Fixed shaft; 115. Fixed frame; 11 6. Impeller; 117. Tail pipe; 118. Pusher mouth; 119. Pusher bar; 120. Limit sleeve; 121. Eccentric wheel; 122. Rotating frame; 123. Clamp plate; 124. Filter element; 125. Air vent; 126. Guide groove; 127. Rotating shaft; 128. Fixed block; 129. Top spring; 130. Hexagonal prism; 131. Guide rod; 132. Top head; 133. Guide column. DETAILED DESCRIPTION

[0020] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0021] like Figure 1-Figure 7The breathing training teaching aid shown in the figure comprises a breathing trainer 1, which comprises a housing 101, a rotating bin 106 is installed on one side of the housing 101, an impeller 116 is arranged inside the rotating bin 106, a fixed shaft 114 is fixedly connected to the middle of the impeller 116, a fixed frame 115 is rotatably connected to the rear part of the outer periphery of the fixed shaft 114, the fixed frame 115 is fixedly connected to the inside of the housing 101, an eccentric wheel 121 is fixedly connected to the front part of the outer periphery of the fixed shaft 114, a lever 119 is fixedly connected to the middle part of the upper and lower ends of the eccentric wheel 121, and a limit sleeve 120 is slidably connected to the outer periphery of the lever 119. The limit sleeve 120 One side is fixedly connected with a rotating frame 122, which is rotatably connected to the front part of the outer periphery of the fixed shaft 114. An indicator plate 103 is arranged on the front side of the rotating frame 122, and an indicator mark 104 is arranged on the upper inner part of the front end of the indicator plate 103. A limit ring 107 is fixedly connected to the rear part of the outer periphery of the indicator plate 103, and a uniformly distributed dialing opening 118 is opened at the rear end of the limit ring 107. The indicator plate 103 and the limit ring 107 are both rotatably connected to one side of the front part of the housing 101. A scale ring 105 is arranged on the outside of the indicator plate 103, and the scale ring 105 is installed at the front part of the housing 101. The front of the scale ring 105 is opened with uniformly distributed scales. Furthermore, in a specific implementation, when performing inhalation training, people can connect the end of the tail pipe 117 to the oxygen supply pipe, so that when performing breathing training, people can increase the oxygen content of the inhaled gas and avoid hypoxia during training, which is beneficial to practical use. During training, the gas entering will drive the impeller 116 to rotate, and the impeller 116 can drive the fixed shaft 114 to rotate. When the fixed shaft 114 rotates, it will drive the eccentric wheel 121 to rotate eccentrically. In this process, the lever 119 on the eccentric wheel 121 can be engaged. The limit ring 107 is moved inside the dial hole 118 and the limit ring 107 and the indicator disk 103 are rotated so that the indicator disk 103 can be moved one grid. The indicator mark 104 on the indicator disk 103 can indicate the deflection amount of the indicator disk 103, which can help people judge their own breathing volume in a single training session together with the scale on the scale ring 105. At the same time, it can assist people in observing the number of training sessions currently completed, so as to avoid memory confusion caused by repeated training during the training process, which may cause errors in the training volume, and is beneficial to actual use.

[0022] Among them, a connecting pipe 108 is fixedly connected to one side of the transfer bin 106, and an end of the connecting pipe 108 away from the transfer bin 106 is fixedly connected to an air bin 109, and a connecting pipe 2 110 is fixedly connected to the side of the air bin 109 away from the connecting pipe 108. The ends of the connecting pipe 2 110 away from the air bin 109 all pass through the end of the shell 101, and a hose 111 is sleeved on the end of the connecting pipe 2 110. A breathing air nozzle 113 is fixedly connected to the end of the hose 111 away from the connecting pipe 2 110. A sealing film 112 is arranged on the inner side of a part of the breathing air nozzle 113 away from the hose 111. Both the sealing film 112 and the breathing air nozzle 113 are made of soft materials. A tail pipe 117 is fixedly connected to the side of the transfer bin 106 away from the connecting pipe 108. A one-way valve 1 is installed at the end of the tail pipe 117 away from the transfer bin 106. An exhaust port is opened on the upper part of the side of the tail pipe 117 away from the transfer bin 106, and another one-way valve is installed inside the exhaust port. Furthermore, in specific implementation, people can perform breathing training through the breathing trainer 1. During training, people can first cover the mouth and nose with the breathing nozzle 113. The breathing nozzle 113 is made of soft material and can better fit the human face. At the same time, the sealing soft film 112 inside the breathing nozzle 113 can better achieve the sealing between the mouth and nose and the breathing nozzle 113, which is beneficial to the actual breathing training work and avoids the occurrence of air leakage. In actual use, people can first take a deep breath, and then cover the breathing nozzle 113. At this time, people The user can exhale slowly into the breathing nozzle 113, and the exhaled air will enter the air chamber 109 through the hose 111 and the connecting pipe 110, and then the air will enter the transfer chamber 106 through the connecting pipe 108 at the other end of the air chamber 109, and be discharged through the exhaust port at the end of the tail pipe 117, thus completing an exhalation training. At the same time, the user can inhale, so that the external air can enter through the tail pipe 117 and be sucked out through the breathing nozzle 113 in the opposite direction, thus performing inhalation training. The breathing trainer 1 can realize dual training of exhalation and inhalation.

[0023] Among them, an adjusting knob 102 is arranged at the front of the air bin 109, and the front of the adjusting knob 102 passes through the front wall of the shell 101, and the adjusting knob 102 is rotatably connected to the shell 101. A filter element 124 is arranged in the middle of the air bin 109, and a clamping plate 123 is arranged at the front and rear of the filter element 124, and the middle of the clamping plate 123 passes through a rotating shaft 127, and the front of the rotating shaft 127 is fixedly connected with the adjusting knob 102, and the rotating shaft 127 passes through the clamping plate 123 and the filter element 124, and the rotating shaft 127 is rotatably connected to the clamping plate 123. The outer side of the middle of the clamping plate 123 is provided with evenly distributed vent holes 125, and both sides of the middle of the rotating shaft 127 are provided with guide grooves 126, and the clamping plates 123 are slidably connected to the inside of the air bin 109, and the inner side of the middle of the clamping plate 123 is fixedly connected with guide pillars 133, and the guide pillars 133 are slidably connected to the inside of the guide grooves 126; Furthermore, in specific implementation, before training, people can adjust the difficulty of the breathing trainer 1 during training according to their own needs by adjusting the knob 102. People can turn the adjusting knob 102 according to the adjustment gear on the shell 101, and the adjusting knob 102 can drive the rotating shaft 127 to rotate. When the rotating shaft 127 rotates, the guide groove 126 on the rotating shaft 127 can cooperate with the guide column 133 on the splint 123, so that the splint 123 can be moved closer or farther by the guide groove 126. When the splints 123 are close to each other, the filter element 124 in the middle can be compressed by the splint 123, so that the ventilation gap on the filter element 124 can become smaller, thereby effectively increasing the difficulty of gas passing through during training, and realizing the adjustment of the difficulty of breathing training.

[0024] Among them, both sides of the outer periphery of the rotating shaft 127 are fixedly connected with hexagonal prisms 130, and the upper and lower parts of the hexagonal prisms 130 are provided with top heads 132, and the middle part of one end of the top head 132 away from the hexagonal prism 130 is fixedly connected with a guide rod 131, and the end of the guide rod 131 away from the top head 132 passes through the fixed block 128, and the fixed block 128 is fixedly connected to the upper and lower parts of the front and rear walls of the air chamber 109, and the side of the top head 132 away from the hexagonal prism 130 is provided with a top spring 129, and the top spring 129 is sleeved on the outer periphery of the guide rod 131, and the top spring 129 is arranged between the fixed block 128 and the top head 132; Furthermore, in specific implementation, during training, people can perform step-by-step training from simple to difficult, which is beneficial for elderly patients with poor respiratory function to use for training. When the rotating shaft 127 rotates one or several gears, the top head 132 and the guide rod 131 can be forced to separate the upper and lower parts. Then, when it rotates to the required gear, people can stop rotating. At this time, under the action of the top spring 129, the top head 132 and the guide rod 131 can support the upper and lower parts of the hexagonal prism 130, so that the adjusting knob 102 can be limited to this gear, so that the adjusting knob 102 will not easily go out of gear or slip without the action of external force, which is beneficial for actual training work.

[0025] Working principle: In actual use, people can perform breathing training through the breathing trainer 1. During training, people can first cover the breathing nozzle 113 to the mouth and nose. The breathing nozzle 113 is made of soft material and can better fit the human face. At the same time, the sealing soft film 112 inside the breathing nozzle 113 can better achieve the sealing between the mouth and nose and the breathing nozzle 113, which is beneficial to the actual breathing training work and avoids air leakage. In actual use, people can first take a deep breath, and then cover the breathing nozzle 113. At this time, people can slowly exhale into the breathing nozzle 113. The exhaled air will enter the air chamber 109 through the hose 111 and the connecting pipe 110, and then the gas will pass through the connecting pipe 111 at the other end of the air chamber 109. 08 enters the interior of the transfer bin 106 and is discharged through the exhaust port at the end of the tail pipe 117, completing an exhalation training. At the same time, people can inhale, so that the external gas can enter through the tail pipe 117 and be sucked out through the breathing nozzle 113 in the opposite direction to perform inhalation training. The breathing trainer 1 can achieve dual training of exhalation and inhalation. When performing inhalation training, people can connect the end of the tail pipe 117 to the oxygen supply tube, so that when people perform breathing training, they can increase the oxygen content of the inhaled gas and avoid hypoxia during training, which is beneficial to actual use. During training, the gas entering will drive the impeller 116 to rotate, and the fixed shaft 114 can be driven to rotate through the impeller 116. When the fixed shaft 114 rotates, it will bring The eccentric wheel 121 is driven to rotate eccentrically. During this process, the dial bar 119 on the eccentric wheel 121 can be inserted into the dial port 118 on the limit ring 107, and the limit ring 107 and the indicator disk 103 are rotated, so that the indicator disk 103 can be driven one grid, and the indicator mark 104 on the indicator disk 103 can indicate the deflection amount of the indicator disk 103, which can help people judge their own breathing volume in a single training together with the scale on the scale ring 105. At the same time, it can assist people in observing the number of training times currently completed, so as to avoid people repeating the training during the training process, resulting in confusion in memory and errors in the training volume, which is beneficial to actual use. At the same time, before training, people can The difficulty of the breathing trainer 1 during training can be adjusted by adjusting the knob 102. People can turn the adjusting knob 102 according to the adjustment gear on the shell 101. The adjusting knob 102 can drive the rotating shaft 127 to rotate. When the rotating shaft 127 rotates, the guide groove 126 on the rotating shaft 127 can cooperate with the guide column 133 on the clamping plate 123, so that the clamping plate 123 can be moved by the guide groove 126 to move closer or farther away synchronously. When the clamping plates 123 are close to each other, the filter element 124 in the middle can be compressed by the clamping plate 123, so that the ventilation gap on the filter element 124 can be reduced, thereby effectively increasing the difficulty of gas passing through during training, and realizing the adjustment of the difficulty of breathing training, so that during training,People can perform step-by-step training from simple to difficult, which is beneficial for elderly patients with poor respiratory function to use for training. When the rotating shaft 127 rotates one or several gears, the top head 132 and the guide rod 131 can be forced to separate the upper and lower parts. After that, when the rotating shaft 127 rotates to the desired gear, people can stop rotating. At this time, under the action of the top spring 129, the top head 132 and the guide rod 131 can hold the upper and lower parts of the hexagonal prism 130, so that the adjusting knob 102 can be limited to the gear, so that the adjusting knob 102 will not easily go out of gear or slip without the action of external force, which is beneficial for actual training work.

[0026] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A teaching aid for breathing training, comprising a breathing training device (1), characterized in that: The breathing trainer (1) comprises a housing (101), a rotating chamber (106) is installed on one side of the housing (101), an impeller (116) is arranged inside the rotating chamber (106), a fixed shaft (114) is fixedly connected to the middle of the impeller (116), a fixed frame (115) is rotatably connected to the rear of the outer periphery of the fixed shaft (114), the fixed frame (115) is fixedly connected to the inside of the housing (101), an eccentric wheel (121) is fixedly connected to the front of the outer periphery of the fixed shaft (114), a shifting bar (119) is fixedly connected to the middle of the upper and lower ends of the eccentric wheel (121), the outer periphery of the shifting bar (119) is slidably connected to a limiting sleeve (120), and one side of the limiting sleeve (120) is fixedly connected to the rotating shaft (114). The rotating frame (122) is rotatably connected to the front portion of the outer periphery of the fixed shaft (114); an indicator disk (103) is arranged at the front side of the rotating frame (122); an indicator mark (104) is arranged at the upper inner portion of the front end of the indicator disk (103); a limit ring (107) is fixedly connected to the rear portion of the outer periphery of the indicator disk (103); a rear end of the limit ring (107) is provided with evenly distributed dial openings (118); the indicator disk (103) and the limit ring (107) are both rotatably connected to one side of the front portion of the housing (101); a scale ring (105) is arranged at the outside of the indicator disk (103); the scale ring (105) is mounted at the front portion of the housing (101); and the front portion of the scale ring (105) is provided with evenly distributed scales.

2. The breathing training teaching aid according to claim 1, characterized in that: One side of the transfer bin (106) is fixedly connected to a connecting tube 1 (108); one end of the connecting tube 1 (108) away from the transfer bin (106) is fixedly connected to a gas bin (109); one side of the gas bin (109) away from the connecting tube 1 (108) is fixedly connected to a connecting tube 2 (110); and one end of the connecting tube 2 (110) away from the gas bin (109) passes through the end of the shell (101).

3. The breathing training teaching aid according to claim 2, characterized in that: A hose (111) is sleeved on the end of the second connecting pipe (110); an end of the hose (111) away from the second connecting pipe (110) is fixedly connected to a breathing nozzle (113); a sealing soft film (112) is provided on the inner side of a part of the breathing nozzle (113) away from the hose (111); the sealing soft film (112) and the breathing nozzle (113) are both made of soft materials.

4. The breathing training teaching aid according to claim 2, characterized in that: A tail pipe (117) is fixedly connected to a side of the transfer bin (106) away from the connecting pipe 1 (108); a one-way valve 1 is installed at one end of the tail pipe (117) away from the transfer bin (106); an exhaust port is provided at an upper portion of a side of the tail pipe (117) away from the transfer bin (106); another one-way valve is installed inside the exhaust port.

5. The breathing training teaching aid according to claim 2, characterized in that: The front portion of the gas chamber (109) is provided with an adjusting knob (102), the front portion of the adjusting knob (102) penetrates the front side wall of the shell (101), and the adjusting knob (102) is rotatably connected to the shell (101).

6. The breathing training teaching aid according to claim 5, characterized in that: A filter element (124) is disposed in the middle of the gas chamber (109), and clamping plates (123) are disposed at the front and rear of the filter element (124). A rotating shaft (127) passes through the middle of the clamping plate (123), and an adjusting knob (102) is fixedly connected to the front of the rotating shaft (127).

7. The breathing training teaching aid according to claim 6, characterized in that: The rotating shaft (127) penetrates the clamping plate (123) and the filter element (124); the rotating shaft (127) is rotatably connected to the clamping plate (123); and evenly distributed ventilation holes (125) are provided on the outer side of the middle of the clamping plate (123).

8. The breathing training teaching aid according to claim 7, characterized in that: Guide grooves (126) are provided on both sides of the middle of the rotating shaft (127), the clamping plates (123) are slidably connected inside the gas chamber (109), and guide pillars (133) are fixedly connected to the inner side of the middle of the clamping plates (123), and the guide pillars (133) are slidably connected inside the guide grooves (126).

9. The breathing training teaching aid according to claim 8, characterized in that: Both sides of the outer periphery of the rotating shaft (127) are fixedly connected to a hexagonal prism (130), the upper and lower parts of the hexagonal prism (130) are provided with a plug (132), the middle part of one end of the plug (132) away from the hexagonal prism (130) is fixedly connected to a guide rod (131), and one end of the guide rod (131) away from the plug (132) passes through the fixed block (128).

10. The breathing training teaching aid according to claim 9, characterized in that: The fixing blocks (128) are fixedly connected to the upper and lower parts of the front and rear walls of the gas chamber (109); a top spring (129) is arranged on the side of the top head (132) away from the hexagonal prism (130); the top spring (129) is sleeved on the outer periphery of the guide rod (131); and the top spring (129) is arranged between the fixing blocks (128) and the top head (132).

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