Method and device for stopping external suspension of helicopter

Abstract

The invention provides a method and device for stopping an external suspension of a helicopter. The device comprises a shell, a central tilting assembly, a swing triggering assembly, a high-pressure gas cylinder and a rotation control assembly. Wherein the shell is composed of a barrel body, a central tilting assembly fixing ring, a swing-stopping gas spraying pipe, an annular gas cavity, a gas inlet one-way valve, a high-pressure gas cylinder cavity, a rotation-stopping shifting fork rotating table, a rotation-stopping shifting fork rotating cavity, a gas conveying one-way valve, a swing-stopping gas spraying opening and an external connecting table; the central tilting assembly is composed of a top column, an upper spherical cavity, an upper spherical cone, a flange ring, a lower spherical cavity, a lower spherical cone, a collision ring and a balance weight cake. The swing triggering assembly is composed of a swing stopping hanging ring, a swing stopping hinge, a swing stopping shifting fork hanging column, a swing stopping shifting fork air inlet hose, a swing stopping shifting fork air injection hose, a swing stopping shifting fork and a swing stopping switch assembly. The rotation control assembly is composed of a rotation stopping shifting fork, a rotation stopping collision table, a spring, a rotation stopping air inlet pipe, a rotation stopping switch assembly, a rotation stopping air spraying pipe, a rotation stopping air spraying channel and a rotation stopping air spraying opening.

Description

Technical Field

[0001] The present application belongs to the field of aviation technology, and specifically relates to a method and device for stopping the external suspension of a helicopter. Background Art

[0002] The helicopter's external hangers can be used to hang various types of machinery and equipment, water tanks, flags, slogans, as well as life-saving frames for personnel, and can even hang a dozen soldiers in a string for emergency and rapid transfer.

[0003] When the helicopter is working externally, it will inevitably swing left and right, forward and backward as the helicopter's attitude and speed change, causing various machines and equipment to shake violently. On the one hand, it will pose a huge test to the mooring, and on the other hand, it will create a large external force on the helicopter, affecting the control of the helicopter and even causing danger; when adjusting the water tank for fire extinguishing and other operations, violent shaking will affect the accuracy of fire extinguishing; when adjusting flags and slogans, violent shaking will seriously affect the aesthetics and solemnity; when adjusting the life-saving frame, violent shaking will affect the physical condition of the rescued people, especially the wounded, and may even cause secondary injuries; when hanging a dozen soldiers for emergency and rapid transfer, violent shaking will affect the soldiers' combat effectiveness.

[0004] At present, the main method to solve the problem of helicopter external suspension swing is to place the helicopter external suspension at the center of gravity of the helicopter and strengthen the pilot's anti-swing training to avoid rough movements. The problem has not been solved from the equipment. Summary of the invention

[0005] Purpose of the invention: To provide a method and device for stopping the external suspension of a helicopter. Using a sensitive internal structure based on the principles of gravity, rotation, pendulum and inertia, and using a touch-type trigger jet method, the energy and amplitude of the swing and rotation are continuously offset during the swing, and only a simple mechanical structure is used, without the need for a gyroscope and electrical equipment, to achieve the effect of stopping the swing and rotation.

[0006] In a first aspect, the present application provides a device for stopping the external suspension of a helicopter, the device comprising a housing, a central tilt assembly, a swing trigger assembly, a high-pressure gas cylinder, and a rotation control assembly;

[0007] The shell is composed of a cylinder, a central tilting assembly fixing ring, a swing-stop jet pipe, an annular air cavity, an air intake check valve, a high-pressure gas cylinder cavity, a rotation table of a rotation-stop fork, a rotation cavity of a rotation-stop fork, a gas transmission check valve, a swing-stop jet port, and an external connection table;

[0008] The central tilting assembly is composed of a top column, an upper spherical cavity, an upper spherical cone, a flange ring, a lower spherical cavity, a lower spherical cone, a collision ring, and a counterweight cake;

[0009] The swing trigger assembly is composed of a swing stop hanging ring, a swing stop hinge, a swing stop fork hanging column, a swing stop fork air intake hose, a swing stop fork air jet hose, a swing stop fork, and a swing stop switch assembly;

[0010] The rotation control component is composed of a rotation-stop fork, a rotation-stop collision table, a spring, a rotation-stop air intake pipe, a rotation-stop switch component, a rotation-stop jet pipe, a rotation-stop jet channel and a rotation-stop jet port.

[0011] Preferably, the shell is a fully enclosed cylindrical structure, which functions to provide installation positions and force-carrying positions for the central tilting assembly, the swing trigger assembly, the high-pressure gas cylinder, and the rotation control assembly.

[0012] Preferably, the main body of the shell is a cylinder, and an external connection platform is arranged directly above the cylinder, which is responsible for connecting the entire device with the outside; an annular air cavity is arranged in the middle of the shell side wall, and several high-pressure gas cylinder cavities are arranged in the middle of the shell side wall.

[0013] Preferably, the annular air cavity is connected to the high-pressure gas cylinder cavity through an air inlet check valve. The high-pressure gas cylinder cavity is responsible for installing the high-pressure gas cylinder, and the annular air cavity is responsible for temporarily storing the high-pressure gas. The high-pressure gas in the high-pressure gas cylinder cavity enters the annular air cavity in one direction through the air inlet check valve; the high-pressure gas in the annular air cavity is output in one direction through the gas transmission check valve.

[0014] Preferably, eight anti-swing jet nozzles are evenly arranged on the upper part of the shell side wall in the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°.

[0015] Preferably, the central tilting assembly is the swing sensing and response assembly of the device, the uppermost part of which is a top column, the lower end of which is fixed directly above the upper spherical cavity, and the upper end of which is responsible for fixing to the shell.

[0016] Preferably, the core component of the swing trigger assembly is the anti-swing fork, which is hinged on the anti-swing hanging ring through the anti-swing fork suspension column at its upper part, and the two lower arms of the anti-swing fork are respectively the inner arm and the outer arm, and the anti-swing switch assembly is arranged inside the inner arm of the anti-swing fork, and the anti-swing fork air intake hose and the anti-swing fork jet hose are arranged on the upper part of the inner arm of the anti-swing fork. When the anti-swing switch assembly is triggered, high-pressure gas enters the anti-swing fork jet hose from the annular air cavity through the gas supply one-way valve, the anti-swing fork air intake hose and the anti-swing switch assembly, and then is ejected from the anti-swing fork jet hose through the anti-swing jet pipe to the anti-swing jet port, thereby completing the jet in one direction.

[0017] In a second aspect, the present application also provides a method for stopping an external suspension of a helicopter, the method comprising:

[0018] First, fix the cylinder of the device to the lowest end of the helicopter's external hanging object, so that the cylinder remains vertical and the device remains horizontal;

[0019] The sensitive internal structure based on the principle of gravity and pendulum adopts the method of touch-type triggering jet, which realizes the continuous offset of the energy and amplitude of its swing during the swing.

[0020] This application has the following technical effects:

[0021] (1) The present invention uses a sensitive internal structure based on the principle of gravity and pendulum, and adopts a touch-type triggering jet method to achieve the effect of continuously offsetting the energy and amplitude of the swing during the swing, thereby achieving the effect of stopping the swing.

[0022] (2) The present invention uses a sensitive internal structure based on the principle of rotation and inertia, and adopts a touch-type triggering reverse jet method to achieve the effect of continuously offsetting the energy and amplitude of the rotation during rotation, thereby achieving the effect of stopping rotation.

[0023] (3) The present invention has an ingenious conception and its operating logic conforms to scientific principles. It only uses a simple mechanical structure and does not require a gyroscope or electrical equipment to achieve the effect of automatically stopping the swing and rotation. It has high stability and good economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the appearance structure of the device provided in the embodiment of the present application;

[0025] Figure 2 is a schematic diagram of the internal structure of the device provided in the embodiment of the present application;

[0026] Figure 3 It is a schematic diagram of the housing structure provided in an embodiment of the present application;

[0027] Figure 4 It is a schematic diagram of the structure of the central tilting assembly provided in an embodiment of the present application;

[0028] Figure 5 is a schematic diagram of the structure of a swing trigger assembly provided in an embodiment of the present application;

[0029] Figure 6 It is a schematic diagram of the structure of the rotation control component provided in an embodiment of the present application. DETAILED DESCRIPTION

[0030] See also Figure 1-Figure 6 , providing a method and device for stopping the external suspension of a helicopter. The system device mainly consists of: a housing 100, a central tilting assembly 200, a swing trigger assembly 300, a high-pressure gas cylinder 400, and a rotation control assembly 500.

[0031] Among them: the shell 100 is composed of a cylinder 101, a central tilting assembly fixing ring 102, a swing-stop jet pipe 103, an annular air cavity 104, an air intake check valve 105, a high-pressure gas cylinder cavity 106, a stop fork rotating platform 107, a stop fork rotating cavity 108, a gas supply check valve 109, a swing-stop jet port 110, and an external connecting platform 111.

[0032] The central tilting assembly 200 is composed of a top column 201 , an upper spherical cavity 202 , an upper spherical cone 203 , a flange ring 204 , a lower spherical cavity 205 , a lower spherical cone 206 , a collision ring 207 , and a counterweight cake 208 .

[0033] The swing trigger assembly 300 is composed of a swing stop hanging ring 301, a swing stop hinge 302, a swing stop fork hanging column 303, a swing stop fork air intake hose 304, a swing stop fork jet hose 305, a swing stop fork 306, and a swing stop switch assembly 307.

[0034] The rotation control assembly 500 is composed of a stop fork 501, a stop collision platform 502, a spring 503, a stop air inlet pipe 504, a stop switch assembly 505, a stop jet pipe 506, a stop jet channel 507, and a stop jet port 508.

[0035] ① System device composition relationship and main functions:

[0036] (1) The shell 100 is a fully enclosed cylindrical structure, which serves to provide the installation position and force position for the central tilting assembly-200, the swing trigger assembly 300, the high-pressure gas cylinder 400, and the rotation control assembly 500. The main part of the shell 100 is the cylinder 101. An external connection platform 111 is arranged directly above the cylinder 101, which is responsible for connecting the entire device with the outside. An annular air cavity 104 is arranged in the middle of the side wall of the shell 100, and a plurality of high-pressure gas cylinder cavities 106 are arranged in the middle of the side wall of the shell 100. The annular air cavity 104 and the high-pressure gas cylinder cavity 106 are connected through the air intake check valve 105. The high-pressure gas cylinder cavity 106 is responsible for installing the high-pressure gas cylinder 400. The annular air cavity 104 is responsible for temporarily storing high-pressure gas. The high-pressure gas in the high-pressure gas cylinder cavity 106 enters the annular air cavity 104 in one direction through the air intake check valve 105. The high-pressure gas in the annular air cavity 104 is output in one direction through the gas transmission check valve 109.

[0037] (2) Eight anti-swing jets 110 are evenly arranged at the upper side wall of the shell 100 in the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°. The anti-swing jets 110 are of Laval nozzle configuration, and the anti-swing jets 110 are connected to the anti-swing jet pipe 103. A central tilting assembly fixing ring 102 is provided at the upper inner part of the shell 100, which is responsible for the connection and fixation of the central tilting assembly 200 and the shell 100. A rotation cavity 108 of the anti-swing fork is milled out on the lower platform of the shell 100, and a rotation platform 107 of the anti-swing fork is provided at the center position, which is responsible for providing the movable position and hinged installation of the anti-swing fork 501;

[0038] (4) The central tilting assembly 200 is the swing sensing and response assembly of the device, and the top part is the top column 201, the lower end of the top column 201 is fixed just above the upper spherical cavity 202, and the upper end of the top column 201 is responsible for fixing on the housing 100. The upper spherical cone 203 is a spherical structure with a cylindrical body at the bottom. The spherical structure of the upper spherical cone 203 is placed in the upper spherical cavity 202, and the cylindrical structure of the upper spherical cone 203 extends a certain length through the flange ring 204 fixed just below the upper spherical cavity 202. The cylindrical structure of the upper spherical cone 203 can rotate freely in the flange ring 204.

[0039] (5) The lower end of the cylindrical structure of the upper spherical cone 203 is fixedly connected to the top of the lower spherical cavity 205. The lower spherical cone 206 is similar to the upper spherical cone 203, and is a spherical structure connected to a cylindrical structure. The spherical structure of the lower spherical cone 206 is placed in the lower spherical cavity 205. The cylindrical structure of the lower spherical cone 206 directly extends downward for a certain length through the circular hole directly below the lower spherical cavity 205. The lower spherical cone 206 and the lower spherical cavity 205 form a movable ball joint. The cylindrical structure of the lower spherical cone 206 can swing and rotate freely in the 25° conical space below the circular hole directly below the lower spherical cavity 205.

[0040] (6) After the cylindrical structure of the lower spherical cone 206 extends downward for a considerable length, it is fixedly connected to the center of the counterweight cake 208. The counterweight cake 208 has a large weight. A collision ring 207 is arranged around the edge of the counterweight cake 208. The collision ring 207 is responsible for colliding and triggering the anti-swing switch assembly 307 when swinging. The lower spherical cone 206, the counterweight cake 208, and the collision ring 207 constitute a pendulum collision structure.

[0041] (7) The purpose of the upper spherical cone 203 cylindrical structure and the lower spherical cone 206 cylindrical structure being able to rotate freely around their axes is to prevent the swinging posture of the pendulum collision structure from being affected by the overall rotation of the device. When the device swings from the neutral position to a certain direction, the pendulum collision structure can always maintain a vertical neutral position.

[0042] (8) The swing trigger assembly 300 is triggered to eject air due to the collision of the pendulum collision structure of the central tilt assembly 200, specifically, the collision of the collision ring 207 against the anti-swing switch assembly 307.

[0043] (9) The core component of the swing trigger assembly 300 is the anti-swing fork 306. The anti-swing fork 306 is hinged on the anti-swing hanging ring 301 through the anti-swing fork hanging column 303 at its upper part. The two lower arms of the anti-swing fork 306 are the inner arm and the outer arm respectively. The anti-swing switch assembly 307 is arranged inside the inner arm of the anti-swing fork 306. The anti-swing fork air intake hose 304 and the anti-swing fork jet hose 305 are arranged on the upper part of the inner arm of the anti-swing fork 306. When the anti-swing switch assembly 307 is triggered, high-pressure gas enters the anti-swing fork jet hose 305 from the annular air cavity 104 through the gas supply one-way valve 109, the anti-swing fork air intake hose 304 and the anti-swing switch assembly 307, and then is ejected from the anti-swing fork jet hose 305 through the anti-swing jet pipe 103 to the anti-swing jet port 110, completing the jet in one direction.

[0044] (10) Eight anti-sway forks 306 are evenly arranged in the device in the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°, which are consistent with the arrangement direction of the anti-sway jet nozzles 110. The anti-sway fork 306 is hinged with the inner fork of the anti-sway hanging ring 301 through the anti-sway fork suspension column 303 on its upper part, which is a high-damping hinge. After the anti-sway fork 306 swings to any position, when there is no subsequent collision with the collision ring 207, the anti-sway fork 306 tends to stay at this position. Its purpose is to enable the anti-sway switch assembly 307 to be triggered only by the active collision of the collision ring 207, and not to be triggered due to the active collision of the anti-sway switch assembly 307 with the collision ring 207 caused by the swing of the anti-sway fork 306.

[0045] (11) Taking 0° as an example, when the device swings from the neutral position to the 0° direction, because the pendulum collision structure can always maintain a vertical neutral position, the 0° direction anti-swing switch assembly 307 is hit by the collision ring 207 in the 0° direction and triggers the 0° direction anti-swing jet 110 to eject air, continuously offsetting the energy and amplitude of its swing. When the device swings to the highest position in the 0° direction, the 180° direction anti-swing fork 306 also has the same swing angle. When the device swings from the highest position in the 0° direction to the highest position in the 180° direction, the 0° direction anti-swing switch assembly 307 is separated from the collision of the collision ring 207, and the 0° direction anti-swing jet 110 stops ejecting air. At the same time, the opposite 180° direction anti-swing switch assembly 307 is hit by the collision ring 207 in the 180° direction and triggers the 180° direction anti-swing jet 110 to eject air, again continuously offsetting the energy and amplitude of its swing. When the device swings from the highest position in the 180° direction to the highest position in the 0° direction, the same applies. The same applies to the swing angles in directions of 45°90°135°180°, 225°, 270°, 315°, etc.

[0046] (12) When the swing trigger assembly 300 rotates with the device, since the swing posture of the pendulum collision structure can be free from the influence of the overall rotation of the device, the swing angle of the device is no longer based on the device itself as a fixed reference system, and the swing angle of the device can be based on space as a reference system. The established function of the device is still applicable, that is, no matter how the device rotates as a whole, the anti-swing jet nozzle 110 can spray at the appropriate position to continuously offset the energy and amplitude of the device's swing. When the swing angle of the device is any angle from 0° to 360°, it is possible to trigger two adjacent anti-swing jet nozzles 110 at the same time.

[0047] (13) The rotation control assembly 500 is arranged as a whole at the lower end of the shell 100. The anti-rotation fork 501 is in the form of two fan-shaped structures, which are thick at both ends and thin in the middle. The thinnest part in the middle is connected to the anti-rotation fork rotating platform 107 through a hinge. The anti-rotation fork 501 can rotate around the anti-rotation fork rotating platform 107 in the anti-rotation fork rotating chamber 108.

[0048] (14) The anti-sway fork 306 is the rotation sensing and response component of the device. When the device rotates counterclockwise, the anti-sway fork 501 collides with the anti-sway collision platform 502 on the right side. The anti-sway collision platform 502 is connected to the anti-sway jet pipe 506 to compress the spring 503, slide to the right along the anti-sway jet channel 507, and open the anti-sway switch assembly 505 at the same time, so that the high-pressure gas enters the anti-sway jet channel 507 from the annular air cavity 104 through the anti-sway air inlet pipe 504, the anti-sway switch assembly 505, and the anti-sway jet pipe 506, and finally is ejected from the anti-sway jet port 508 to complete the anti-clockwise jet, continuously offsetting the energy and amplitude of the counterclockwise rotation of the device.

[0049] The same applies when the device rotates clockwise.

[0050] ③System operation process

[0051] (1) Before using the device, first fix the cylinder 101 of the device to the lowest end of the helicopter's external hanging object, so that the cylinder 101 remains vertical and the device remains horizontal.

[0052] (2) Taking 0° as an example, when the device swings from the neutral position to the 0° direction, because the pendulum collision structure can always maintain a vertical neutral position, the 0° direction anti-swing switch assembly 307 is hit by the collision ring 207 in the 0° direction and triggers the 0° direction anti-swing jet 110 to spray, continuously offsetting the energy and amplitude of its swing. When the device swings to the highest position in the 0° direction, the 180° direction anti-swing fork 306 also has the same swing angle. When the device swings from the highest position in the 0° direction to the highest position in the 180° direction, the 0° direction anti-swing switch assembly 307 is separated from the collision of the collision ring 207, and the 0° direction anti-swing jet 110 stops spraying. At the same time, the opposite 180° direction anti-swing switch assembly 307 is hit by the collision ring 207 in the 180° direction and triggers the 180° direction anti-swing jet 110 to spray, again continuously offsetting the energy and amplitude of its swing.

[0053] (3) The same applies when the device swings from the highest position at 180° to the highest position at 0°. (4) The same applies to swing angles of 45°, 90°, 135°, 180°, 225°, 270°, 315°, etc.

[0054] (5) When the swing trigger assembly 300 rotates together with the device, since the swing posture of the pendulum collision structure can be immune to the influence of the overall rotation of the device, the swing angle of the device is no longer based on the device itself as a fixed reference system, and the swing angle of the device can be based on space as a reference system. The established function of the device is still applicable, that is, no matter how the device as a whole rotates, the anti-swing jet 110 can spray at the appropriate position to continuously offset the energy and amplitude of the device's swing.

[0055] (6) When the swing angle of the device is any angle from 0° to 360°, it is possible to trigger two adjacent anti-swing air jets 110 at the same time.

[0056] (7) The anti-sway fork 306 is the rotation sensing and response component of the device. When the device rotates counterclockwise, the anti-sway fork 501 collides with the anti-sway collision platform 502 on the right side. The anti-sway collision platform 502 is connected to the anti-sway jet pipe 506 to compress the spring 503, slide to the right along the anti-sway jet channel 507, and open the anti-sway switch assembly 505 at the same time, so that the high-pressure gas enters the anti-sway jet channel 507 from the annular air cavity 104 through the anti-sway air inlet pipe 504, the anti-sway switch assembly 505, and the anti-sway jet pipe 506, and finally is ejected from the anti-sway jet port 508, completing the anti-clockwise jet, and continuously offsetting the energy and amplitude of the counterclockwise rotation of the device.

[0057] (8) The same applies when the device rotates clockwise.

[0058] ④It should be noted that:

[0059] (1) Eight swing-stop jet nozzles 110 are evenly arranged at the upper side wall of the housing 100 in the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°. The swing-stop jet nozzles 110 are Laval nozzle configurations.

[0060] (2) The lower spherical cone 206 and the lower spherical cavity 205 form a movable ball joint, and the cylindrical structure of the lower spherical cone 206 can swing and rotate freely in the 25° conical space below the circular hole directly below the lower spherical cavity 205.

[0061] (3) The weight cake 208 has a relatively large weight.

[0062] (4) The purpose of the upper spherical cone 203 cylindrical structure and the lower spherical cone 206 cylindrical structure being able to rotate freely around their axes is to prevent the swinging posture of the pendulum collision structure from being affected by the overall rotation of the device. When the device swings from the neutral position to a certain direction, the pendulum collision structure can always maintain a vertical neutral position.

[0063] (5) There are 8 anti-sway forks 306 evenly arranged in the device at the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°, which are consistent with the arrangement direction of the anti-sway jet nozzles 110. The anti-sway fork 306 is hinged with the inner fork of the anti-sway hanging ring 301 through the anti-sway fork hanging column 303 at its upper part, which is a high-damping hinge. After the anti-sway fork 306 swings to any position, when there is no subsequent collision with the collision ring 207, the anti-sway fork 306 tends to stay at this position.

[0064] (6) When the swing trigger assembly 300 rotates with the device, since the swing posture of the pendulum collision structure can be free from the influence of the overall rotation of the device, the swing angle of the device is no longer fixed by the device itself, but can be based on space as a reference system. The established function of the device is still applicable, that is, no matter how the device rotates as a whole, the anti-swing jet 110 can spray at the appropriate position to continuously offset the energy and amplitude of the device's swing. When the swing angle of the device is any angle from 0° to 360°, it is possible to trigger two adjacent anti-swing jets 110 at the same time.

Claims

1. A device for stopping the external suspension of a helicopter, characterized in that: The device comprises a housing, a central tilting assembly, a swing trigger assembly, a high-pressure gas cylinder, and a rotation control assembly; The shell is composed of a cylinder, a central tilting assembly fixing ring, a swing-stop jet pipe, an annular air cavity, an air intake check valve, a high-pressure gas cylinder cavity, a rotation table of a rotation-stop fork, a rotation cavity of a rotation-stop fork, a gas transmission check valve, a swing-stop jet port, and an external connection table; The central tilting assembly is composed of a top column, an upper spherical cavity, an upper spherical cone, a flange ring, a lower spherical cavity, a lower spherical cone, a collision ring, and a counterweight cake; The swing trigger assembly is composed of a swing stop hanging ring, a swing stop hinge, a swing stop fork hanging column, a swing stop fork air intake hose, a swing stop fork air jet hose, a swing stop fork, and a swing stop switch assembly; The rotation control component is composed of a rotation-stop fork, a rotation-stop collision table, a spring, a rotation-stop air intake pipe, a rotation-stop switch component, a rotation-stop jet pipe, a rotation-stop jet channel and a rotation-stop jet port.

2. The device according to claim 1, characterized in that The shell is a fully enclosed cylindrical structure, which serves to provide installation positions and force-applying positions for the central tilting assembly, the swing trigger assembly, the high-pressure gas cylinder, and the rotation control assembly.

3. The device according to claim 2, characterized in that The main part of the shell is a cylinder, and an external connection platform is arranged directly above the cylinder, which is responsible for connecting the entire device with the outside; an annular air cavity is arranged in the middle of the shell side wall, and several high-pressure gas cylinder cavities are arranged in the middle of the shell side wall.

4. The device according to claim 3, characterized in that The annular gas cavity is connected with the high-pressure gas cylinder cavity through an air inlet check valve. The high-pressure gas cylinder cavity is responsible for installing the high-pressure gas cylinder, and the annular gas cavity is responsible for temporarily storing the high-pressure gas. The high-pressure gas in the high-pressure gas cylinder cavity enters the annular gas cavity in one direction through the air inlet check valve; the high-pressure gas in the annular gas cavity is output in one direction through the gas transmission check valve.

5. The device according to claim 4, characterized in that Eight anti-swing jet nozzles are evenly arranged on the upper part of the shell side wall in the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270° and 315°.

6. The device according to claim 5, characterized in that The central tilting assembly is the swing sensing and response assembly of the device. The uppermost part is the top column, the lower end of which is fixed just above the upper spherical cavity, and the upper end of which is responsible for fixing to the shell.

7. The device according to claim 6, characterized in that The core component of the swing trigger assembly is the anti-swing fork, which is hinged on the anti-swing hanging ring through the anti-swing fork suspension column on its upper part. The two lower arms of the anti-swing fork are the inner arm and the outer arm respectively. The anti-swing switch assembly is arranged inside the inner arm of the anti-swing fork, and the anti-swing fork air intake hose and the anti-swing fork jet hose are arranged on the upper part of the inner arm of the anti-swing fork. When the anti-swing switch assembly is triggered, high-pressure gas enters the anti-swing fork jet hose from the annular air cavity through the gas supply one-way valve, the anti-swing fork air intake hose and the anti-swing switch assembly, and then is ejected from the anti-swing fork jet hose through the anti-swing jet pipe to the anti-swing jet port to complete the jet in one direction.

8. A method for stopping the external suspension of a helicopter, characterized in that: The method comprises: First, fix the cylinder of the device to the lowest end of the helicopter's external hanging object, so that the cylinder remains vertical and the device remains horizontal; The sensitive internal structure based on the principle of gravity and pendulum adopts the method of touch-type triggering jet, which realizes the continuous offset of the energy and amplitude of its swing during the swing.

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