A portable choking first aid device based on the Heimlich method

Abstract

This invention discloses a portable choking first aid device based on the Heimlich maneuver, comprising a mounting frame and an outer cover frame mounted on top of the mounting frame. A reciprocating servo motor is installed inside the mounting frame, and a rotating rod is fixedly mounted on the output end of the reciprocating servo motor. A reciprocating abdominal push assembly for abdominal compression is mounted on the outer side of the rotating rod, and a reciprocating abdominal thrust assembly for abdominal pressure is mounted on the outer side of the rotating rod and inside the outer cover frame. The device drives the rotating rod via the reciprocating servo motor, synchronously driving the reciprocating abdominal push assembly and the reciprocating abdominal thrust assembly to operate in coordination. The reciprocating swing of the abdominal push protrusion and the reciprocating rise and fall of the abdominal thrust protrusion precisely simulate the reciprocating impact action of the standard Heimlich maneuver, forming a pulsed abdominal impact that effectively promotes the expulsion of foreign objects from the airway, avoiding the problem of poor unidirectional impact. The cooperation between the arc-shaped block and the arc-shaped groove, and the sliding plate and the sliding groove, ensures smooth impact action and reduces the risk of secondary injury.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically a portable choking emergency device based on the Heimlich maneuver. Background Technology

[0002] Airway obstruction is a common emergency medical condition in clinical practice and daily life. It refers to the accidental entry of food, toy fragments, foreign objects, etc., into the larynx, trachea, or bronchi, causing airway blockage and difficulty breathing. In severe cases, it can lead to suffocation, loss of consciousness, or even death within seconds to minutes, posing a significant threat to human life. Children are at high risk because their swallowing function is not yet fully developed and they are more curious, making them more prone to swallowing small objects. The elderly are also at high risk because of declining chewing function, decreased coordination of the pharyngeal muscles, and often accompanied by swallowing difficulties. In addition, pregnant women and obese individuals are also at high risk due to their unique body structure, which makes it more difficult for them to save themselves after choking.

[0003] Currently, the most effective first aid method for airway obstruction is the Heimlich maneuver. Its core principle is to quickly and forcefully thrust into the patient's upper abdomen (near the navel), creating a high-pressure airflow that forces the foreign object out of the airway, thus relieving the obstruction. However, the traditional Heimlich maneuver has many limitations in practical application and cannot meet the needs of a more convenient and accessible emergency response.

[0004] First, the traditional Heimlich maneuver requires a high level of professional skill from the rescuer. It requires precise control of the impact position (two finger widths above the navel), the direction of force (inward and upward), and the force of the impact (approximately 5 kg for adults and 3-5 kg ​​for children). The general public lacks professional first aid training, and in emergency situations, problems such as incorrect impact position, insufficient force, or excessive force are prone to occur. This not only fails to effectively expel the foreign object but may also cause secondary injuries such as rib fractures, abdominal soft tissue damage, and internal organ contusions. The risks are even higher for vulnerable groups such as children and the elderly.

[0005] Secondly, the traditional Heimlich maneuver relies on two people working together. If a patient is alone and experiences airway obstruction, they cannot perform first aid on their own and must wait for someone else to rescue them. The golden time for first aid for airway obstruction is only 4 to 6 minutes. During the waiting process, it is very easy to miss the best rescue opportunity, which may lead to the patient suffocating and dying.

[0006] Furthermore, existing Heimlich maneuver aids have significant drawbacks: most devices are bulky and complex, cannot be folded and stored, have extremely poor portability, and are difficult to popularize in non-medical settings such as homes, restaurants, outdoors, and nursing homes; some simple first aid devices can only achieve unidirectional impacts and cannot simulate the reciprocating impact action of the standard Heimlich maneuver, resulting in poor first aid effectiveness. Summary of the Invention

[0007] The purpose of this invention is to provide a portable choking emergency device based on the Heimlich maneuver to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a portable choking rescue device based on the Heimlich maneuver, comprising a mounting frame and an outer cover frame mounted on top of the mounting frame. A reciprocating servo motor is installed inside the mounting frame, and a rotating rod is fixedly mounted on the output end of the reciprocating servo motor. A reciprocating abdominal push assembly for abdominal compression is installed on the outer side of the rotating rod, and a reciprocating abdominal thrust assembly for abdominal pressure is installed on the outer side of the rotating rod and inside the outer cover frame.

[0009] Preferably, the reciprocating abdominal thrust assembly includes three swing frames, each with a connecting block fixedly installed at both ends, and an abdominal thrust protrusion fixedly installed at the end of the connecting block away from the swing frame.

[0010] Preferably, the outer frame has two symmetrical swing grooves on both sides, and the two connecting blocks are slidably installed on the inner side of the two swing grooves respectively. The inner cavity of the swing groove is provided with arc-shaped grooves on both sides, and an arc-shaped block is fixedly installed on one side of the swing frame, and the arc-shaped block is slidably installed on the inner side of the arc-shaped groove.

[0011] Preferably, elastic shielding strips are fixedly installed on both sides of the swing frame, and the end of the elastic shielding strip away from the swing frame is connected to the inner side of the swing groove.

[0012] Preferably, the reciprocating top and bottom assembly includes a lifting frame and two sockets. The lifting frame has a moving groove inside, and a lifting block is slidably installed inside the moving groove. A top and bottom protrusion is fixedly installed on the top of the lifting block, and two lifting protrusions are symmetrically fixedly installed on the bottom of the lifting block. Lifting protrusions are fixedly installed on the outer sides of the two sockets.

[0013] Preferably, the lifting frame is fixedly installed inside the top of the outer cover frame, the two sockets are symmetrically fixedly installed on the outside of the rotating rod, and the positions of the two lifting protrusions 2 correspond to the positions of the two lifting protrusions 1 respectively.

[0014] Preferably, sliding plates are fixedly installed on both sides of the lifting block, and sliding grooves are symmetrically opened on both sides of the moving groove. The sliding plates are slidably installed on the inner side of the sliding grooves, and a reciprocating spring is fixedly installed on the top of the sliding plate. The top of the reciprocating spring is fixedly connected to the top of the inner cavity of the sliding groove.

[0015] Preferably, a partition one is fixedly installed on the inner side of the mounting frame, a partition two is fixedly installed inside the mounting frame, a fixing groove is provided on one side of the mounting frame, the reciprocating servo is fixedly installed on the inner side of the fixing groove, and the rotating rod is rotatably installed on the inner side of the partition one and the partition two.

[0016] Preferably, a battery is fixedly installed on the top of the mounting frame, a charging port is fixedly installed on one side of the mounting frame, a switch button is installed on one side of the mounting frame, and the battery is electrically connected to the reciprocating servo motor via wires.

[0017] Preferably, two support seats are symmetrically fixedly installed at the bottom of the mounting frame. Support leg one and support leg two are movably installed inside the two support seats respectively. Support leg one is concave and support leg two is convex. A handle ring is fixedly installed on one side of support leg one and support leg two.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: the device drives the rotating rod through the reciprocating servo motor, which synchronously drives the reciprocating abdominal push assembly and the reciprocating abdominal push assembly to work together. The reciprocating swing of the abdominal push protrusion and the reciprocating lifting and lowering of the abdominal push protrusion accurately simulate the reciprocating impact action of the standard Heimlich method, forming a pulsed abdominal impact, which can effectively promote the discharge of foreign objects from the airway and avoid the problem of poor effect of unidirectional impact. The cooperation between the arc-shaped block and the arc-shaped groove, and the sliding plate and the sliding groove, ensures the smoothness of the impact action and reduces the risk of secondary injury. The device features a foldable design, with support legs one and two folding and storing inside the support base, making it compact in size. The handle makes it easy to carry and unfold. Powered by a rechargeable battery with a charging port, it can be recharged at any time, eliminating the need for an external power source. It is suitable for various scenarios such as homes, restaurants, and outdoor settings. The entire device can be started with a simple switch button, requiring no professional first aid knowledge. Ordinary people can quickly learn to use it, solving the problems of high learning curves and uneven force application in traditional Heimlich maneuvers, thus gaining crucial time for emergency treatment of patients with airway obstruction. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention viewed from below.

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the reciprocating abdominal push component of the present invention.

[0022] Figure 4 This is a three-dimensional structural diagram of the present invention with the reciprocating abdominal thrust component removed from another perspective.

[0023] Figure 5 This is a three-dimensional structural diagram of the reciprocating abdominal pushing component and the reciprocating abdominal lifting component of the present invention.

[0024] Figure 6 This is a three-dimensional structural diagram of the reciprocating top and bottom assembly of the present invention.

[0025] In the diagram: 1. Mounting frame; 2. Outer cover frame; 3. Reciprocating servo motor; 4. Push-up protrusion; 5. Top-up protrusion; 6. Elastic shielding strip; 7. Charging port; 8. Switch button; 9. Sliding groove; 10. Support leg one; 11. Support leg two; 12. Support base; 13. Handle ring; 14. Lifting protrusion one; 15. Sliding plate; 16. Lifting block; 17. Reciprocating spring; 18. Connecting block; 19. Arc-shaped block; 20. Swing frame; 21. Rotating rod; 22. Lifting protrusion two; 23. Socket seat; 24. Fixing groove; 25. Partition one; 26. Partition two; 27. Arc-shaped groove; 28. Lifting frame; 29. ​​Moving groove; 30. Swing groove; 31. Battery. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-6This invention provides a technical solution: a portable choking rescue device based on the Heimlich maneuver, comprising a mounting frame 1 and an outer cover frame 2 mounted on top of the mounting frame 1. A reciprocating servo motor 3 is installed inside the mounting frame 1. A rotating rod 21 is fixedly mounted at the output end of the reciprocating servo motor 3. A reciprocating abdominal push assembly for abdominal compression is mounted on the outer side of the rotating rod 21. A reciprocating abdominal thrust assembly for abdominal pressure is mounted on the outer side of the rotating rod 21 and inside the outer cover frame 2. The reciprocating abdominal push assembly includes three swing frames 20 and three swing... Connecting blocks 18 are fixedly installed at both ends of the swing frame 20. A pushing protrusion 4 is fixedly installed at the end of the connecting block 18 away from the swing frame 20. Two swing grooves 30 are symmetrically opened on both sides of the outer cover frame 2. The two connecting blocks 18 are slidably installed on the inner side of the two swing grooves 30 respectively. Arc grooves 27 are opened on both sides of the inner cavity of the swing groove 30. An arc block 19 is fixedly installed on one side of the swing frame 20, and the arc block 19 is slidably installed on the inner side of the arc groove 27. Elastic shielding strips are fixedly installed on both sides of the swing frame 20. 6. The end of the elastic shielding band 6 furthest from the swing frame 20 is connected to the inner side of the swing groove 30. The reciprocating top and bottom assembly includes a lifting frame 28 and two socket seats 23. The lifting frame 28 has a moving groove 29 inside, and a lifting block 16 is slidably installed inside the moving groove 29. A top and bottom protrusion 5 is fixedly installed on the top of the lifting block 16, and two lifting protrusions 14 are symmetrically fixedly installed on the bottom of the lifting block 16. Lifting protrusions 22 are fixedly installed on the outer sides of the two socket seats 23. The lifting frame 28 is fixedly installed... Inside the top of the outer frame 2, two socket seats 23 are symmetrically fixedly installed on the outside of the rotating rod 21. The positions of the two lifting protrusions 22 correspond to the positions of the two lifting protrusions 14. Sliding plates 15 are fixedly installed on both sides of the lifting block 16. Sliding grooves 9 are symmetrically opened on both sides of the moving groove 29. The sliding plates 15 are slidably installed on the inside of the sliding grooves 9. A reciprocating spring 17 is fixedly installed on the top of the sliding plate 15. The top of the reciprocating spring 17 is fixedly connected to the top of the inner cavity of the sliding groove 9.

[0028] The working principle of the above technical solution is as follows: After the reciprocating servo motor 3 is started, the reciprocating servo motor 3, which is fixedly installed inside the fixing slot 24 of the mounting frame 1, begins to work normally. Its output end drives the rotating rod 21 to rotate stably. Since the rotating rod 21 is rotatably installed inside the partition 1 25 and partition 26, the partition 1 25 and partition 26 can limit and support the rotating rod 21, preventing the rotating rod 21 from deviating or shaking when rotating. The rotating rod 21 reciprocates at a uniform speed according to a preset frequency, thereby synchronously driving the reciprocating push-belly assembly and the reciprocating push-belly assembly installed on its outer side to work together, ensuring that the two components move synchronously and conform to the standard rhythm of the Heimlich maneuver. When the rotating rod 21 reciprocates, it synchronously drives the three swing frames 20 fixedly connected to its outer side to swing synchronously. As the swing frame 20 moves, the connecting blocks 18 fixedly installed at both ends move accordingly, sliding back and forth along the swing grooves 30 symmetrically opened on both sides of the outer frame 2. Simultaneously, the arc-shaped block 19 fixedly installed on one side of the swing frame 20 slides synchronously along the arc-shaped grooves 27 opened on both sides of the inner cavity of the swing groove 30. The cooperation between the arc-shaped block 19 and the arc-shaped groove 27 can limit the swing trajectory of the swing frame 20, prevent swing deviation, and ensure that the abdominal push action is smooth and orderly. The abdominal push protrusion 4 fixedly installed at the end of the connecting block 18 away from the swing frame 20 swings back and forth periodically with the reciprocating swing of the swing frame 20, accurately acting on the Heimlich maneuver position two finger widths above the patient's navel, providing gentle yet powerful periodic pressure to the patient's abdomen. In addition, the elastic shielding straps 6 fixedly installed on both sides of the swing frame 20 swing with the swing. The moving frame 20 extends and retracts synchronously, always blocking the opening of the swing groove 30 to prevent foreign objects and dust from entering the device during emergency rescue, thus protecting the normal operation of internal components. As the rotating rod 21 reciprocates, two symmetrically fixed sockets 23 on its outer side rotate synchronously with the rotating rod 21. The second lifting protrusion 22, fixedly installed on the outer side of the socket 23, moves in a circular motion with the rotation of the rotating rod 21, periodically contacting the first lifting protrusion 14 in the moving groove 29 within the lifting frame 28. When the second lifting protrusion 22 contacts the first lifting protrusion 14, the first lifting protrusion 14 receives an upward thrust, causing the lifting block 16 fixedly connected to its top to slide upward along the moving groove 29. The sliding plates 15 fixedly installed on both sides of the lifting block 16 synchronously open symmetrically along both sides of the moving groove 29. As the sliding groove 9 slides, the reciprocating spring 17, fixedly installed on the top of the sliding plate 15, undergoes elastic deformation under compression, storing elastic potential energy. When the second lifting protrusion 22 rotates with the rotating rod 21 and separates from the first lifting protrusion 14, the reciprocating spring 17 releases its elastic potential energy, pushing the sliding plate 15 downward along the sliding groove 9. This causes the lifting block 16 to fall back to its original position, thereby causing the abdominal protrusion 5, fixedly installed on the top of the lifting block 16, to perform a reciprocating lifting motion, periodically pushing upwards on the patient's abdomen. This, combined with the pushing action of the abdominal push protrusion 4, forms a complete Heimlich maneuver. The reciprocating swinging and pushing action of the abdominal push protrusion 4, along with the reciprocating lifting and pushing action of the abdominal protrusion 5, precisely simulates the reciprocating impact action of the standard Heimlich maneuver through periodic pushing and pushing.This device applies pulsed pressure to the patient's abdomen, causing residual air in the lungs to form an airflow that impacts and expels the foreign object from the airway. During emergency treatment, the device can be started and stopped at any time via switch button 8. Once the foreign object has been expelled, immediately turn off switch button 8 to disconnect the device's power supply.

[0029] In another implementation scheme, such as Figures 1-6 As shown, a partition 25 is fixedly installed on the inner side of the mounting frame 1, and a partition 26 is fixedly installed inside the mounting frame 1. A fixing groove 24 is provided on one side of the mounting frame 1. The reciprocating servo 3 is fixedly installed on the inner side of the fixing groove 24. The rotating rod 21 is rotatably installed on the inner side of the partition 25 and the partition 26. A battery 31 is fixedly installed on the top of the mounting frame 1. A charging port 7 is fixedly installed on one side of the mounting frame 1. A switch button 8 is installed on one side of the mounting frame 1. The battery 31 is electrically connected to the reciprocating servo 3 through wires.

[0030] The operator first checks the battery 31 at the top of the mounting frame 1. If the battery is low, the battery 31 can be charged by connecting a charger through the charging port 7 on the side of the mounting frame 1. After the battery is fully charged, the operator presses the start button through the switch button 8 on the side of the mounting frame 1. The battery 31 establishes an electrical connection with the reciprocating servo motor 3 through the preset wires, and quickly supplies power to the reciprocating servo motor 3.

[0031] In another implementation scheme, such as Figures 1-6 As shown, two support seats 12 are symmetrically fixedly installed at the bottom of the mounting frame 1. Support leg 10 and support leg 2 11 are movably installed inside the two support seats 12 respectively. Support leg 10 is concave and support leg 2 11 is convex. A handle ring 13 is fixedly installed on one side of both support leg 10 and support leg 2 11.

[0032] The operator first confirms that the device is in the retracted state. Holding the handles 13 on one side of support leg 10 and support leg 2 11 respectively, the operator uses the handles 13 to slowly unfold support legs 10 and 2 11, which are movably mounted inside the support base 12, outwards until they are perpendicular to the mounting frame 1. This ensures the mounting frame 1 is placed stably on a horizontal surface, providing a solid support base for subsequent emergency operations and preventing the device from shaking during the emergency, which could affect the impact effect. After use, the operator holds the handles 13 and folds support legs 10 and 2 11 inwards, retracting them into the support base 12. The device is then tidied up for easy carrying and future use.

[0033] Working principle: The operator first confirms that the device is in the retracted state. Holding the handles 13 on one side of support leg 10 and support leg 2 11 respectively, the operator uses the handles 13 to slowly extend support legs 10 and 2 11, which are movably mounted inside the support base 12, outwards until they are perpendicular to the mounting frame 1. This ensures the mounting frame 1 is stably placed on a horizontal surface, providing a solid support base for subsequent emergency operations and preventing the device from shaking during the emergency, which could affect the impact effect. The operator first checks the battery 31 at the top of the mounting frame 1. If the battery is low, it can be charged by connecting a charger through the charging port 7 on one side of the mounting frame 1. Once the battery is fully charged, it can be charged through the opening on one side of the mounting frame 1. Pressing the start button (button 8) activates the battery 31, which establishes an electrical connection with the reciprocating servo motor 3 via a pre-set wire, quickly supplying power to the motor. After startup, the reciprocating servo motor 3, fixedly mounted inside the mounting slot 24 of the mounting frame 1, begins normal operation. Its output drives the rotating rod 21 to rotate stably. Since the rotating rod 21 is mounted inside partitions 25 and 26, these partitions limit and support the rotating rod 21, preventing it from shifting or wobbling during rotation. The rotating rod 21 reciprocates at a preset frequency, synchronously driving the reciprocating abdominal push and reciprocating abdominal push components mounted on its outer side to work together, ensuring synchronized movement of the two components in accordance with the standard rhythm of the Heimlich maneuver. During reciprocating rotation, the three swing frames 20 fixedly connected to its outer side simultaneously swing back and forth. The connecting blocks 18 fixedly installed at both ends of the swing frame 20 move accordingly, sliding back and forth along the swing grooves 30 symmetrically opened on both sides of the outer frame 2. At the same time, the arc-shaped block 19 fixedly installed on one side of the swing frame 20 slides synchronously along the arc-shaped grooves 27 opened on both sides of the inner cavity of the swing groove 30. The cooperation between the arc-shaped block 19 and the arc-shaped groove 27 can limit the swing trajectory of the swing frame 20, prevent swing deviation, and ensure that the abdominal push action is smooth and orderly. The abdominal push protrusion 4 fixedly installed at the end of the connecting block 18 away from the swing frame 20 swings back and forth periodically with the reciprocating swing of the swing frame 20, accurately acting on the Heimlich maneuver position two finger widths above the patient's navel, providing a gentle and effective abdominal push. The periodic pushing force, in addition, the elastic shielding strips 6 fixedly installed on both sides of the swing frame 20 extend and retract synchronously with the swing frame 20, always blocking the opening of the swing groove 30, preventing foreign objects and dust from entering the device during emergency rescue, and protecting the normal operation of internal components. While the rotating rod 21 reciprocates, the two socket seats 23 symmetrically fixedly installed on its outer side rotate synchronously with the rotating rod 21. The lifting protrusion 22 fixedly installed on the outer side of the socket seat 23 makes a circular motion with the rotation of the rotating rod 21, periodically abutting the lifting protrusion 14 in the moving groove 29 inside the lifting frame 28. When the lifting protrusion 22 abuts the lifting protrusion 14, the lifting protrusion 14 is pushed upward, causing the lifting block 16 fixedly connected to its top to slide upward along the moving groove 29.The sliding plates 15 fixedly installed on both sides of the lifting block 16 slide synchronously along the sliding grooves 9 symmetrically opened on both sides of the moving groove 29. The reciprocating spring 17 fixedly installed on the top of the sliding plate 15 undergoes elastic deformation under compression, storing elastic potential energy. When the second lifting protrusion 22 rotates with the rotating rod 21 and separates from the first lifting protrusion 14, the reciprocating spring 17 releases elastic potential energy, pushing the sliding plate 15 to slide downward along the sliding groove 9, causing the lifting block 16 to fall back to its original position synchronously. This causes the abdominal protrusion 5 fixedly installed on the top of the lifting block 16 to perform reciprocating lifting and lowering motion, periodically pushing upward on the patient's abdomen. This, in conjunction with the pushing action of the abdominal pushing protrusion 4, forms a complete Heimlich reciprocating impact. The reciprocating pushing and swaying motion of the abdominal thrust block 4, in coordination with the reciprocating lifting and lowering motion of the abdominal thrust block 5, precisely simulates the reciprocating impact motion of the standard Heimlich maneuver. Through periodic pushing and lowering, pulsed pressure is generated in the patient's abdomen, causing residual air in the lungs to form an airflow that impacts and expels foreign objects from the airway. During the emergency, the device can be started and stopped at any time via the switch button 8. Once the foreign object is expelled, the switch button 8 should be immediately turned off to cut off the device's power. Subsequently, the operator holds the pull handle 13 and folds the first support leg 10 and the second support leg 11 inwards, storing them inside the support base 12. After tidying up the device, it is stored for easy transport and future use.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable Heimlich maneuver based choking first aid device comprising a mounting frame (1) and a cover frame (2) mounted on top of the mounting frame (1), characterized in that: The reciprocating rudder machine (3) is internally mounted in the mounting frame (1), the output end of the reciprocating rudder machine (3) is fixedly mounted with a rotating rod (21), the outer side of the rotating rod (21) is mounted with a reciprocating abdomen pushing assembly for abdomen pushing, and the outer side of the rotating rod (21) and the inner side of the outer cover frame (2) are mounted with a reciprocating abdomen pressing assembly for abdomen pressing.

2. The portable Heimlich maneuver based choking first aid apparatus according to claim 1, wherein: The reciprocating abdomen pushing assembly comprises three swing frames (20), and the two ends of the three swing frames (20) are fixedly mounted with connecting blocks (18), and the end, away from the swing frame (20), of the connecting block (18) is fixedly mounted with an abdomen pushing protruding block (4).

3. The portable Heimlich maneuver based choking first aid apparatus according to claim 2, wherein: The two sides of the outer cover frame (2) are symmetrically provided with two swing grooves (30), the two connecting blocks (18) are respectively and slidably mounted in the inner sides of the two swing grooves (30), the two sides of the inner cavity of the swing groove (30) are provided with arc grooves (27), and the side of the swing frame (20) is fixedly mounted with an arc block (19) which is slidably mounted in the inner side of the arc groove (27).

4. The portable Heimlich maneuver based choking first aid apparatus according to claim 3, wherein: The two sides of the swing frame (20) are fixedly mounted with elastic shielding belts (6), and the end, away from the swing frame (20), of the elastic shielding belt (6) is connected with the inner side of the swing groove (30).

5. The portable Heimlich maneuver based choking first aid apparatus according to claim 4, wherein: The reciprocating abdomen pressing assembly comprises a lifting beam frame (28) and two sleeve joint seats (23), the inner side of the lifting beam frame (28) is provided with a moving groove (29), the inner side of the moving groove (29) is slidably mounted with a lifting block (16), the top of the lifting block (16) is fixedly mounted with an abdomen pressing protruding block (5), the bottom of the lifting block (16) is symmetrically fixedly mounted with two lifting protruding blocks (14), and the outer sides of the two sleeve joint seats (23) are fixedly mounted with two lifting protruding blocks (22).

6. The portable Heimlich maneuver based choking first aid apparatus according to claim 5, wherein: The lifting beam frame (28) is fixedly mounted in the inner side of the top of the outer cover frame (2), the two sleeve joint seats (23) are symmetrically fixedly mounted on the outer side of the rotating rod (21), and the positions of the two lifting protruding blocks (22) correspond to the positions of the two lifting protruding blocks (14) respectively.

7. The portable Heimlich maneuver based choking first aid apparatus of claim 6, wherein: The two sides of the lifting block (16) are fixedly mounted with sliding plates (15), the two sides of the moving groove (29) are symmetrically provided with sliding grooves (9), and the sliding plates (15) are slidably mounted in the inner sides of the sliding grooves (9), the top of the sliding plate (15) is fixedly mounted with a reciprocating spring (17), and the top of the reciprocating spring (17) is fixedly connected with the top of the inner cavity of the sliding groove (9).

8. The portable Heimlich maneuver based choking first aid apparatus according to claim 7, wherein: The inner side of the mounting frame (1) is fixedly mounted with a partition plate (25), the inner side of the mounting frame (1) is fixedly mounted with a partition plate (26), one side of the mounting frame (1) is provided with a fixed groove (24), the reciprocating rudder machine (3) is fixedly mounted in the inner side of the fixed groove (24), and the rotating rod (21) is rotatably mounted in the inner sides of the partition plate (25) and the partition plate (26).

9. The portable Heimlich maneuver based choking first aid apparatus of claim 8, wherein: The top of the mounting frame (1) is fixedly installed with a battery (31), one side of the mounting frame (1) is fixedly installed with a charging socket (7), one side of the mounting frame (1) is installed with a switch button (8), and the battery (31) is electrically connected with the reciprocating rudder (3) through wires.

10. The portable Heimlich maneuver based choking first aid apparatus of claim 9, wherein: The bottom of the mounting frame (1) is symmetrically fixedly installed with two support seats (12), the inner parts of the two support seats (12) are movably installed with a support leg one (10) and a support leg two (11) respectively, the support leg one (10) is concave, the support leg two (11) is convex, and one side of the support leg one (10) and the support leg two (11) is fixedly installed with a handle ring (13).

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