Pressing type oxygen inhalation device for emergency
By designing an emergency compression-type oxygen inhalation device, utilizing an elastic airbag, an air intake unit, an air exhaust unit, and a breathing indicator unit, the problem of consistent operation of simple respirators was solved. This enabled stable control of oxygen supply depth and frequency, meeting the needs of emergency treatment, reducing time waste, and improving operational consistency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- FOURTH MILITARY MEDICAL UNIVERSITY
- Filing Date
- 2026-04-23
- Publication Date
- 2026-05-29
AI Technical Summary
Existing simple respirators lack objective quantitative indicators in emergency rescue, making it difficult to ensure consistent operation and easily leading to insufficient or excessive ventilation, especially posing risks of alveolar damage or gastric distension to pediatric patients.
An emergency press-type oxygen inhalation device was designed, including an elastic air bag, an air intake unit, an air outlet unit, and an oxygen mask. Through the cooperation of a fixed column, a movable ring, an elastic metal positioning plate, and a drive mechanism, the depth and frequency of oxygen supply can be stably controlled, and a breathing indicator unit is equipped to intuitively display the patient's exhalation status.
It achieves stable control of oxygen supply depth and frequency, avoids insufficient or excessive ventilation, adapts to emergency treatment needs, reduces time waste, and improves operational consistency and safety.
Smart Images
Figure CN122097772A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of medical device technology, and in particular relates to an emergency press-type oxygen inhalation device. Background Technology
[0002] A simple respirator is a crucial artificial ventilation device in emergency resuscitation. It is used for the emergency treatment of patients with respiratory arrest or severe hypoxemia. By manually pressing the cuff, oxygen or air is forced into the patient's lungs, providing temporary oxygenation and ventilation support. Simple respirators are easy to operate, require no power source, and can quickly establish an effective artificial airway, buying time for further resuscitation.
[0003] A simple respirator mainly consists of a mask, a compression bag, a one-way valve, and oxygen tubing. When using it, the patient's airway must first be opened and the mask tightly fitted to the face. Then, oxygen can be supplied to the patient by repeatedly pressing the compression bag. However, since each patient's condition is different, there are significant differences between adults, the elderly, and children. The use of a simple respirator mainly relies on medical staff to control the compression depth. Although it is easy to operate, requires no power, and can quickly establish effective ventilation, it lacks objective quantitative indicators, making it difficult to ensure operational consistency. Improper compression can easily lead to insufficient ventilation or over-ventilation. Especially for children, over-ventilation may cause risks such as alveolar damage or gastric distension. Summary of the Invention
[0004] The purpose of this invention is to address the above-mentioned problems by providing an emergency compression-type oxygen inhalation device. This device can stably control the oxygen supply depth, avoid over-oxygenation or under-ventilation, and can intuitively display the patient's exhalation status, optimize the compression frequency, and quickly adjust the positioning parameters to meet the needs of emergency treatment.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is: an emergency compression-type oxygen inhalation device, comprising an elastic air bag, an air intake unit, an air outlet unit, and an oxygen mask, wherein the elastic air bag draws in oxygen through the air intake unit and delivers oxygen to the patient through the air outlet unit and the oxygen mask, and further comprises: A fixed column is coaxially inserted inside the elastic airbag. Movable rings are slidably sleeved on both sides of the fixed column inside the elastic airbag. Several elastic metal positioning plates are fixed between the two movable rings in a ring shape. The fixed column is equipped with a drive mechanism to drive the two movable rings to move. An encapsulation assembly is installed on the outside of the fixing post, and the fixing post is sealed to the elastic airbag through the encapsulation assembly; A breathing indicator unit is installed inside the air outlet unit and is used to indicate the patient's exhalation status.
[0006] Preferably, the air intake unit includes an oxygen storage valve body, which is provided with an oxygen storage bag connecting pipe, an oxygen connecting pipe and an oxygen storage safety valve. An air supply pipe is fixed to the air outlet end of the oxygen storage valve body, and an air supply one-way valve is fixed inside the air supply pipe. An air inlet is opened at one end of the fixed column near the oxygen storage valve body, which is connected to the inside of the elastic airbag, and the air supply pipe is connected to the air inlet.
[0007] Preferably, the air outlet unit includes a hollow block fixed to a fixed column. The fixed column has an air outlet groove at one end near the hollow block that communicates with the interior of the hollow block. The bottom of the air outlet groove has multiple air outlet holes that communicate with the interior of the elastic airbag. An air outlet pipe is fixed to the bottom of the hollow block. An air outlet one-way valve is installed inside the air outlet pipe. The pipe wall of the air outlet pipe has several exhaust holes. When the valve plate of the air outlet one-way valve is opened, the valve plate of the air outlet one-way valve will block the exhaust holes. The air inlet end of the oxygen mask is detachably connected to the air outlet pipe. A detachable pressure safety valve is installed on the top of the hollow block.
[0008] Preferably, the driving mechanism includes a movable block fixed inside the movable ring, the column wall of the fixed column has a strip hole that matches the movable block, and a bidirectional screw is rotatably connected inside the strip hole, and the movable block is threadedly connected to the bidirectional screw.
[0009] Preferably, the encapsulation assembly includes T-shaped inner inserts fixedly sleeved at both ends of the fixed post, and the T-shaped inner inserts pass through the end through holes of the elastic airbag. The post wall of the fixed post is threaded with a clamping ring on the opposite side of the two T-shaped inner inserts. The clamping ring presses the edge of the end through hole of the elastic airbag against the side wall of the T-shaped inner insert.
[0010] Preferably, the breathing indicator unit includes a sealing cover sleeved on the outside of the air outlet pipe, and the sealing cover is fixed to the bottom of the hollow block. The exhaust port is connected to the inside of the sealing cover. A trapezoidal block is fixed to the top of the hollow block. An exhaust port is opened on the inclined surface of the trapezoidal block. A connecting pipe is fixedly inserted into the hollow block, and the exhaust port is connected to the inside of the sealing cover through the connecting pipe. An airflow indicator is adhered to the upper end of the side wall of the hollow block, and the movable end of the airflow indicator covers the outside of the exhaust port. The airflow discharged from the exhaust port drives the airflow indicator to flutter.
[0011] Preferably, a fixing cylinder is fixed to the side wall of the clamping ring near the oxygen storage valve body, and an indicator sleeve with scale lines is slidably connected inside the fixing cylinder. The clamping ring is equipped with a drive assembly that drives the indicator sleeve to move horizontally along the fixing cylinder.
[0012] Preferably, the drive assembly includes a one-way screw threaded inside the indicator sleeve, and the one-way screw is rotatably connected to the side wall of the clamping ring on the same side. A gear is fixed to the end of the one-way screw away from the clamping ring. The end of the two-way screw near the oxygen storage valve body passes through the air inlet and is fixed to a turntable. An inner support ring is fixedly sleeved on the outer wall of the fixed column. An outer support ring is fixed to the side wall of the turntable, and the outer support ring and the inner support ring are rotatably connected in a sealed manner. An arc-shaped rack matching the gear is fixed to the end of the outer support ring.
[0013] Compared with existing technologies, the advantages of this invention are: This invention, through the coordinated operation of an elastic airbag, an air intake unit, an air outlet unit, and an oxygen mask, can provide emergency oxygen supply to patients. Furthermore, the coordinated operation of a fixed column, a movable ring, an elastic metal positioning plate, and a drive mechanism allows the system to memorize the initial compression depth, facilitating medical personnel to control the compression depth for subsequent compressions. This ensures a sufficiently stable oxygen supply, preventing over-compression or under-ventilation, and changing the traditional reliance on the skill and experience of medical personnel.
[0014] This invention, through its breathing indicator unit, can visually display whether the patient's exhaled airflow has ended during the oxygen delivery process, thus making it easier for medical staff to control the compression frequency, avoiding conflicts between the oxygen delivery process and the patient's exhalation, and ensuring the effectiveness of oxygen delivery.
[0015] This invention, through the coordinated arrangement of a fixed cylinder, an indicator sleeve, and a driving component, allows for pre-adjustment of the elastic metal positioning plate according to the patient's condition. This facilitates quick adjustment of the elastic metal positioning plate during subsequent use, reducing wasted time and making it suitable for emergency treatment. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of an emergency compression oxygen inhalation device provided by the present invention; Figure 2 This is a schematic diagram of the air intake unit of an emergency press-type oxygen inhalation device provided by the present invention; Figure 3 This is a schematic diagram showing the position of the oxygen storage safety valve in an emergency press-type oxygen inhalation device provided by the present invention; Figure 4 This is a schematic diagram of the air outlet unit of an emergency press-type oxygen inhalation device provided by the present invention; Figure 5 This is a schematic diagram of the drive mechanism of an emergency press-type oxygen inhalation device provided by the present invention; Figure 6 This is a schematic diagram of the structure of the elastic metal positioning plate of an emergency press-type oxygen inhalation device provided by the present invention after bending; Figure 7 This is a schematic diagram of the connection structure between the indicator sleeve and the fixing cylinder of an emergency press-type oxygen inhalation device provided by the present invention.
[0017] In the diagram: 1. Elastic airbag; 2. Intake unit; 21. Oxygen storage valve body; 22. Oxygen storage bag connecting pipe; 23. Oxygen connecting pipe; 24. Oxygen storage safety valve; 25. Gas supply pipe; 26. Gas supply check valve; 27. Air inlet; 3. Exhaust unit; 31. Hollow block; 32. Exhaust groove; 33. Exhaust hole; 34. Exhaust pipe; 35. Exhaust check valve; 36. Exhaust port; 37. Pressure safety valve; 4. Oxygen mask; 5. Fixed column; 6. Movable ring; 7. Elastic metal positioning plate; 8. Drive mechanism. 81 Movable block, 82 Strip hole, 83 Bidirectional screw, 9 Encapsulation assembly, 91 T-shaped inner insert, 92 Compression ring, 10 Breathing indicator unit, 101 Sealing cover, 102 Trapezoidal block, 103 Exhaust port, 104 Connecting pipe, 105 Airflow indicator, 11 Fixed cylinder, 12 Indicator sleeve, 13 Drive assembly, 131 One-way screw, 132 Gear, 133 Turntable, 134 Inner support ring, 135 Outer support ring, 136 Arc rack. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.
[0019] like Figures 1-7 The illustrated emergency compression-type oxygen delivery device includes an elastic airbag 1, an air intake unit 2, an air outlet unit 3, and an oxygen mask 4. The elastic airbag 1 draws in oxygen through the air intake unit 2 and delivers the oxygen to the patient through the air outlet unit 3 and the oxygen mask 4. The air intake unit 2 includes an oxygen storage valve body 21, which is equipped with an oxygen storage bag connecting tube 22, an oxygen connecting tube 23, and an oxygen storage safety valve 24. An air supply tube 25 is fixed to the air outlet end of the oxygen storage valve body 21, and the inner surface of the air supply tube 25... The unit is fixed with a one-way valve 26 for air supply. The end of the fixed column 5 near the oxygen storage valve body 21 has an air inlet 27 that communicates with the inside of the elastic airbag 1. The air supply pipe 25 is connected to the air inlet 27. The oxygen storage safety valve 24 will automatically open when the air pressure inside the oxygen storage bag is too high to prevent the oxygen storage bag from rupturing. The oxygen storage bag mainly collects the oxygen discharged from the oxygen connection pipe 23 when the one-way valve 26 for air supply is closed. When there is no oxygen source, there is no need to install an oxygen storage bag and the outside air can be directly inhaled.
[0020] The air outlet unit 3 includes a hollow block 31 fixed to the fixed column 5. The fixed column 5 has an air outlet groove 32 at one end near the hollow block 31 that communicates with the inside of the hollow block 31. The bottom of the air outlet groove 32 has multiple air outlet holes 33 that communicate with the inside of the elastic airbag 1. An air outlet pipe 34 is fixed to the bottom of the hollow block 31. An air outlet one-way valve 35 is installed inside the air outlet pipe 34. Several exhaust holes 36 are opened on the pipe wall of the air outlet pipe 34. When the valve plate of the air outlet one-way valve 35 is opened, the valve plate of the air outlet one-way valve 35 will block the exhaust holes 36. The air inlet end of the oxygen mask 4 is detachably connected to the air outlet pipe 34. A detachable pressure safety valve 37 is installed on the top of the hollow block 31. The pressure safety valve 37 will automatically open when the air pressure is too high to prevent too much oxygen from being introduced into the patient's airway. The pressure safety valve 37 can work with the elastic metal positioning plate 7 to form bidirectional protection.
[0021] The fixed column 5 is coaxially inserted inside the elastic airbag 1. Movable rings 6 are slidably sleeved on both sides of the fixed column 5 inside the elastic airbag 1. Several elastic metal positioning plates 7 are fixed between the two movable rings 6 in a ring shape. The fixed column 5 is equipped with a drive mechanism 8 that drives the two movable rings 6 to move. The drive mechanism 8 includes a movable block 81 fixed inside the movable ring 6. The column wall of the fixed column 5 has a strip hole 82 that matches the movable block 81. A bidirectional screw 83 is rotatably connected inside the strip hole 82. The movable block 81 is threadedly connected to the bidirectional screw 83. The threads at both ends of the rod wall of the bidirectional screw 83 turn in opposite directions.
[0022] The encapsulation component 9 is installed on the outside of the fixed post 5, and the fixed post 5 is sealed to the elastic airbag 1 through the encapsulation component 9. The encapsulation component 9 includes T-shaped inner inserts 91 that are fixedly sleeved at both ends of the fixed post 5, and the T-shaped inner inserts 91 pass through the end through holes of the elastic airbag 1. The post wall of the fixed post 5 is threaded with a clamping ring 92 on the opposite side of the two T-shaped inner inserts 91. The clamping ring 92 presses the edge of the end through hole of the elastic airbag 1 against the side wall of the T-shaped inner insert 91 to ensure the sealing between the elastic airbag 1 and the fixed post 5.
[0023] A breathing indicator unit 10 is installed inside the air outlet unit 3 and is used to indicate the patient's exhalation status. The breathing indicator unit 10 includes a sealing cover 101 sleeved on the outside of the air outlet tube 34, and the sealing cover 101 is fixed to the bottom of the hollow block 31. The exhaust port 36 is connected to the inside of the sealing cover 101. A trapezoidal block 102 is fixed to the top of the hollow block 31, and an exhaust port 103 is opened on the inclined surface of the trapezoidal block 102. A connecting passage is fixedly inserted through the hollow block 31. The tube 104 and the exhaust port 103 are connected to the interior of the sealing cover 101 through the connecting tube 104. An airflow indicator 105 is attached to the upper side wall of the hollow block 31, and the movable end of the airflow indicator 105 covers the outside of the exhaust port 103. The airflow discharged from the exhaust port 103 drives the airflow indicator 105 to float. The airflow indicator 105 can be made of lightweight materials such as medical-grade non-woven fabric and colored film to ensure that the airflow indicator 105 can float when there is a weak airflow.
[0024] A fixed cylinder 11 is fixed to the side wall of the clamping ring 92 near the oxygen storage valve body 21, and an indicator sleeve 12 with scale lines is slidably connected inside the fixed cylinder 11. The clamping ring 92 is equipped with a drive assembly 13 that drives the indicator sleeve 12 to move horizontally along the fixed cylinder 11. The drive assembly 13 includes a one-way screw 131 threaded inside the indicator sleeve 12, and the one-way screw 131 is rotatably connected to the side wall of the clamping ring 92 on the same side. A gear 132 is fixed to the end of the one-way screw 131 away from the clamping ring 92, and a two-way screw 83 is close to the oxygen storage valve. One end of body 21 passes through air inlet 27 and is fixed with turntable 133. An inner support ring 134 is fixedly sleeved on the outer side wall of fixed column 5. An outer support ring 135 is fixed on the side wall of turntable 133, and the outer support ring 135 is sealed and rotatably connected to the inner support ring 134. An arc-shaped rack 136 matching gear 132 is fixed at the end of outer support ring 135. A slider is fixed on the outer wall of indicator sleeve 12. A straight groove matching the slider is opened on the inner wall of fixed cylinder 11 to ensure that the indicator sleeve 12 moves linearly when the one-way screw 131 rotates.
[0025] The operating principle of this invention is explained as follows: Before providing oxygen to the patient, medical staff should first assess the patient's consciousness and respiratory status, quickly clear any visible foreign objects (such as secretions, vomit, or blood clots) from the oral cavity and airway, and open the airway using the head-tilt / chin-lift maneuver or the jaw-lift maneuver to ensure airway patency. Then, select an oxygen mask 4 of appropriate size and use the CE maneuver to ensure a tight fit between the oxygen mask 4 and the patient's mouth and nose to prevent air leakage (the CE maneuver refers to using the thumb and forefinger to press the oxygen mask 4 to ensure a seal between the oxygen mask 4 and the patient's face, while using the other three fingers to lift the jaw). Then, connect the oxygen source to the oxygen connection tube 23 through a special hose and adjust the oxygen flow rate. At the same time, install the oxygen storage bag at the oxygen storage bag connection tube 22. Subsequently, medical staff can begin to provide oxygen to the patient. For patients without spontaneous breathing, during the initial chest compressions, medical staff press the elastic air bag 1. At this time, the oxygen inside the elastic air bag 1 will enter the hollow block 31 through the air outlet 33 and the air outlet groove 32, and open the valve plate of the one-way valve 35. Then, the gas enters the patient's airway through the oxygen mask 4. Medical staff observe the patient's chest cavity contour. Due to the entry of oxygen, the patient's chest cavity will bulge. After the bulge reaches the appropriate level, medical staff stop pressing the elastic air bag 1, and another medical staff quickly rotates the turntable 133. At this time, the bidirectional screw 83 rotates (the threads on both sides of the bidirectional screw 83 rotate in opposite directions), which can drive the two movable blocks 81 to move the two movable rings 6 in opposite directions. As the distance between the two movable rings 6 decreases, each elastic metal positioning piece 7 will bend outwards until the medical staff presses the elastic airbag 1 and feels the elastic metal positioning piece 7 in place, then stop rotating the turntable 133. After that, the medical staff can release the elastic airbag 1. At this time, the elastic airbag 1 begins to rebound and recover. The valve plate of the outlet one-way valve 35 moves back and closes. The air pressure inside the rebounding elastic airbag 1 is low. At this time, the valve plate of the supply one-way valve 26 opens, and the oxygen supplied by the oxygen source is supplemented into the elastic airbag 1 through the oxygen storage valve body 21, the supply pipe 25 and the air inlet 27. When supplying oxygen to patients with spontaneous breathing, the initial press should be consistent with the patient's inhalation time to avoid conflict with the patient's own breathing rate. When medical staff release the elastic airbag 1, the patient begins to exhale. The exhaled air is discharged into the sealed cover 101 through the exhaust port 36 of the oxygen mask 4, and is discharged from the tail port 103 through the connecting tube 104. The airflow discharged from the tail port 103 blows the movable end of the airflow indicator 105, causing the airflow indicator 105 to flutter (the airflow indicator 105 can be made of lightweight materials such as medical-grade non-woven fabric or colored film). After the patient finishes exhaling, the airflow stops flowing, so the airflow indicator 105 will not flutter. Therefore, medical staff can judge whether the patient's exhalation has ended based on the movement of the airflow indicator 105, which is more intuitive than the traditional observation of the patient's chest rise and fall. When the airflow indicator 105 stops fluttering, medical staff need to press the elastic airbag 1 again, stop pressing after sensing the elastic metal positioning plate 7, and release the elastic airbag 1. This cycle is repeated to provide oxygen to the patient. Before treating a patient, the entire device should be inspected, including whether the elastic airbag 1 is sealed, and whether the oxygen storage safety valve 24 and pressure safety valve 37 can be opened normally. Simultaneously, the curvature of the elastic metal positioning plate 7 can be adjusted by rotating the turntable 133 according to the patient's condition. When rotating the turntable 133, it drives the arc-shaped rack 136 to rotate via the outer support ring 135. When the arc-shaped rack 136 moves to the gear 132, it drives the gear 132 to rotate. At this time, the one-way screw 131... The rotating disc 133 drives the indicator sleeve 12 to move outward along the fixed cylinder 11. For each rotation of the disc 133, the indicator sleeve 12 will move outward by 0.5 cm. Therefore, medical staff can judge the degree of bending of the elastic metal positioning piece 7 by looking at the scale on the surface of the indicator sleeve 12. By pre-adjusting the degree of bending of the elastic metal positioning piece 7, the time for subsequent precise adjustment can be shortened, reducing time waste. In addition, during the process of supplying oxygen to the patient, the operation of the disc 133 is completed by other medical staff to ensure that the oxygen supply to the patient remains continuous.
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An emergency compression-type oxygen inhalation device, comprising an elastic airbag (1), an air intake unit (2), an air outlet unit (3), and an oxygen mask (4), wherein the elastic airbag (1) inhales oxygen through the air intake unit (2) and delivers oxygen to the patient through the air outlet unit (3) and the oxygen mask (4), characterized in that, Also includes: A fixed column (5) is coaxially inserted inside the elastic airbag (1). Movable rings (6) are slidably sleeved on both sides of the fixed column (5) inside the elastic airbag (1). Several elastic metal positioning plates (7) are fixed between the two movable rings (6) in a ring shape. The fixed column (5) is equipped with a drive mechanism (8) to drive the two movable rings (6) to move. The encapsulation component (9) is installed on the outside of the fixing post (5), and the fixing post (5) is sealed to the elastic airbag (1) through the encapsulation component (9); A breathing indicator unit (10) is installed inside the air outlet unit (3), and the breathing indicator unit (10) is used to indicate the patient's exhalation status.
2. The emergency compression-type oxygen inhalation device according to claim 1, characterized in that, The air intake unit (2) includes an oxygen storage valve body (21), which is provided with an oxygen storage bag connecting pipe (22), an oxygen connecting pipe (23) and an oxygen storage safety valve (24). An air supply pipe (25) is fixed at the outlet end of the oxygen storage valve body (21), and an air supply one-way valve (26) is fixed inside the air supply pipe (25). An air inlet (27) is opened at one end of the fixed column (5) near the oxygen storage valve body (21) and communicates with the inside of the elastic airbag (1), and the air supply pipe (25) is connected to the air inlet (27).
3. The emergency compression-type oxygen inhalation device according to claim 1, characterized in that, The air outlet unit (3) includes a hollow block (31) fixed to a fixed column (5). The fixed column (5) has an air outlet groove (32) connected to the interior of the hollow block (31) at one end near the hollow block (31). The bottom of the air outlet groove (32) has multiple air outlet holes (33) connected to the interior of the elastic airbag (1). The bottom of the hollow block (31) is fixed with an air outlet pipe (34). An air outlet one-way valve (35) is installed inside the air outlet pipe (34). The pipe wall of the air outlet pipe (34) has several exhaust holes (36). When the valve plate of the air outlet one-way valve (35) is opened, the valve plate of the air outlet one-way valve (35) will block the exhaust holes (36). The air inlet end of the oxygen mask (4) is detachably connected to the air outlet pipe (34). A detachable pressure safety valve (37) is installed on the top of the hollow block (31).
4. An emergency compression-type oxygen inhalation device according to claim 2, characterized in that, The drive mechanism (8) includes a movable block (81) fixed inside the movable ring (6). The column wall of the fixed column (5) is provided with a strip hole (82) that matches the movable block (81), and a bidirectional screw (83) is rotatably connected inside the strip hole (82). The movable block (81) is threadedly connected to the bidirectional screw (83).
5. An emergency compression-type oxygen inhalation device according to claim 4, characterized in that, The encapsulation component (9) includes T-shaped inner inserts (91) fixedly sleeved at both ends of the fixed post (5), and the T-shaped inner inserts (91) pass through the end through hole of the elastic airbag (1). The post wall of the fixed post (5) is threaded with a clamping ring (92) on the opposite side of the two T-shaped inner inserts (91). The clamping ring (92) presses the edge of the end through hole of the elastic airbag (1) against the side wall of the T-shaped inner insert (91).
6. An emergency compression-type oxygen inhalation device according to claim 3, characterized in that, The breathing indicator unit (10) includes a sealing cover (101) sleeved on the outside of the air outlet pipe (34), and the sealing cover (101) is fixed to the bottom of the hollow block (31). The exhaust hole (36) is connected to the inside of the sealing cover (101). A trapezoidal block (102) is fixed on the top of the hollow block (31). An exhaust hole (103) is opened on the inclined surface of the trapezoidal block (102). A connecting pipe (104) is fixedly inserted into the hollow block (31), and the exhaust hole (103) is connected to the inside of the sealing cover (101) through the connecting pipe (104). An airflow indicator (105) is attached to the upper end of the side wall of the hollow block (31), and the movable end of the airflow indicator (105) covers the outside of the exhaust hole (103). The airflow discharged from the exhaust hole (103) drives the airflow indicator (105) to float.
7. An emergency compression-type oxygen inhalation device according to claim 5, characterized in that, A fixed cylinder (11) is fixed to the side wall of the clamping ring (92) near the oxygen storage valve body (21), and an indicator sleeve (12) with scale lines is slidably connected inside the fixed cylinder (11). The clamping ring (92) is equipped with a drive assembly (13) that drives the indicator sleeve (12) to move horizontally along the fixed cylinder (11).
8. An emergency compression-type oxygen inhalation device according to claim 7, characterized in that, The drive assembly (13) includes a one-way screw (131) threaded inside the indicator sleeve (12), and the one-way screw (131) is rotatably connected to the side wall of the same side clamping ring (92). A gear (132) is fixed at the end of the one-way screw (131) away from the clamping ring (92). The end of the two-way screw (83) near the oxygen storage valve body (21) passes through the air inlet (27) and is fixed with a turntable (133). An inner support ring (134) is fixedly sleeved on the outer side wall of the fixed column (5). An outer support ring (135) is fixed on the side wall of the turntable (133), and the outer support ring (135) is rotatably connected to the inner support ring (134) in a sealed manner. An arc-shaped rack (136) matching the gear (132) is fixed at the end of the outer support ring (135).