Automatic inflation manned airbag and unmanned aerial vehicle

Abstract

The automatic inflation manned airbag comprises a main body, a connecting rod, a rotor wing, a fixing device, the automatic inflation manned airbag and an inflation device, and the main body is connected with the rotor wing through the connecting rod; the body is connected with the automatic inflation manned air bag through the fixing device, the automatic inflation manned air bag comprises an inner shell and an outer soft shell, the outer soft shell is arranged on the outer side of the inner shell in a sleeving mode to form an air storage cavity, and the inflation device is used for inflating the air storage cavity. According to the technical scheme, when the unmanned aerial vehicle needs to throw personnel or goods in a complex terrain or an area where the unmanned aerial vehicle is difficult to land, the throwing and transporting device is directly used, and the inner shell and the outer soft shell of the throwing and transporting device form the air storage cavity, so that the air bag is formed; the air bag damping technology depends on compression and deformation of the air bag to absorb and disperse impact energy generated when the unmanned aerial vehicle throws goods to achieve a strong damping effect, and the manufacturing and maintenance cost of the air bag is relatively low.

Description

Technical Field

[0001] The present invention relates to the technical field of air bag-based delivery and transportation equipment, and in particular to an automatic inflatable passenger air bag and an unmanned aerial vehicle. Background Art

[0002] When drones and other aircraft transport goods or passengers, they have relatively high requirements for the landing environment and location during landing. Slowing down the descent using devices such as parachutes can easily cause the goods to move away from the delivery location, and the longer hovering time under special conditions can easily increase the probability of damage to the goods. For direct delivery, the existing transportation devices have poor vibration reduction effects, which can easily cause damage to the goods and injuries to people. Therefore, a delivery and transportation device with good vibration reduction effects is needed. Summary of the invention

[0003] The main purpose of the present invention is to provide an automatically inflated passenger airbag, aiming to solve the problem that the existing delivery and transportation device has a weak vibration reduction effect.

[0004] To achieve the above-mentioned purpose, the present invention proposes an automatic inflatable manned airbag based on an automatic inflatable drone, which includes a main body, a connecting rod, a rotor, a fixing device, an automatic inflatable manned airbag and an inflating device, wherein the main body is connected to the rotor via the connecting rod; the main body is connected to the automatic inflatable manned airbag via the fixing device, the automatic inflatable manned airbag includes an inner shell and an outer soft shell, the outer soft shell is sleeved on the outside of the inner shell to form an air storage cavity, and the inflating device is used to inflate the air storage cavity.

[0005] Preferably, the inflation device includes a fan and a connecting pipe, one end of the connecting pipe is provided with an air inlet, the air inlet is arranged below the rotor, the other end of the connecting pipe is connected to the fan, and the fan is connected to the air storage chamber.

[0006] Preferably, the air inlet is arranged on the connecting rod, and the connecting pipe is arranged inside the connecting rod.

[0007] Preferably, a connecting device and a supporting device, a connecting device is provided at one end of the inner shell, the connecting device is used to connect to the aircraft, the outer soft shell is sleeved on the outside of the inner shell to form an air storage chamber, the supporting device is used to connect the inner shell and the outer soft shell, a cabin door is opened on the inner shell, and the outer soft shell is provided on the outside of the cabin door to form an air storage chamber.

[0008] Preferably, the supporting device includes at least two supporting legs, one end of the supporting leg is connected to the inner shell, and the other end of the supporting leg extends out of the outer soft shell, an air guide cavity is provided inside the supporting leg, the air storage cavity is connected to the air guide cavity through a pressure relief valve, and an air outlet is provided at one end of the supporting leg away from the inner shell, and the air outlet is connected to the air guide cavity.

[0009] Preferably, the support leg also includes a vibration damping device, which is arranged at one end of the support leg away from the inner shell, and includes a vibration damping slip ring, a vibration damping spring and a clamping block, the vibration damping slip ring is sleeved outside the support leg, one end of the vibration damping spring is connected to the vibration damping slip ring, the other end of the vibration damping spring is connected to the clamping block, and the clamping block is fixedly connected to the support leg.

[0010] Preferably, it also includes a rolling unloading device, which includes an air duct, an elastic component and a telescopic chamber arranged on the inner shell, the telescopic chamber is arranged on the inner side of the inner shell, the air storage chamber is connected to the telescopic chamber through a pressure relief valve, one end of the air duct is slidably arranged in the telescopic chamber and is connected to the telescopic chamber, the other end of the air duct extends out of the telescopic chamber, and an air guide port is arranged at one end of the air duct extending out of the telescopic chamber, the axis of the air guide port is arranged parallel to the tangent of the inner shell, and the elastic component is connected to the air duct.

[0011] Preferably, it also includes a partition strip, which divides the air storage chamber into at least two sub-chambers evenly distributed along the circumferential direction of the axis of the inner shell, and the sub-chambers are respectively provided with and connected to the rolling unloading devices, and the air guide ports of the rolling unloading devices connected to the relatively arranged sub-chambers are arranged in opposite directions.

[0012] Preferably, a sealed cylinder is provided in the telescopic cavity, and the sealed cylinder is sleeved on the outside of the air duct. A connecting hole is provided at one end of the air duct connected to the sealed cylinder sleeve, and an avoidance hole is provided on the sealed cylinder. When the air duct extends out of the inner shell, the connecting hole and the avoidance hole are connected. The automatically inflated manned airbag can be used to protect the lives of people on large passenger aircraft.

[0013] Preferably, it also includes a guide bar and a guide device, the guide bar is used to divide the sub-chamber into a first sub-chamber and a second sub-chamber, the guide bar is arranged perpendicular to the axis of the inner shell, the guide device is arranged in the telescopic chamber, the guide device includes a guide cylinder and a guide ring, the guide cylinder includes a guide piston, the two ends of the guide piston are respectively connected to the first sub-chamber and the second sub-chamber, the guide piston is connected to the guide ring, the guide ring is slidably arranged along the axis of the air duct, and a clamping block is arranged on the guide ring, and the clamping block is used to drive the air duct to rotate when the guide ring rotates.

[0014] In the technical solution of the present invention, when the UAV needs to deliver personnel or cargo in complex terrain or difficult-to-land areas, a delivery and transportation device is directly used. The inner shell and outer soft shell of the delivery and transportation device form an air storage cavity, thereby forming an air bag. The air bag shock absorption technology relies on the compression and deformation of the air bag to generate elastic force to absorb and disperse the impact energy generated to achieve a stronger shock absorption effect, and the manufacturing and maintenance costs of the air bag are relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 The present invention is a structural schematic diagram of an automatic inflatable manned drone.

[0017] Figure 2 The present invention is a schematic structural diagram of an automatic inflatable passenger airbag.

[0018] Figure 3 The figure is a schematic structural diagram of one embodiment of an automatic inflatable passenger airbag of the present invention.

[0019] Figure 4 The present invention is a schematic structural diagram of a guide device for an automatically inflated passenger airbag.

[0020] Figure 5 The present invention is a schematic diagram of a chamber structure of an automatic inflatable passenger airbag.

[0021] Figure 6 The invention provides an automatic inflatable passenger airbag Figure 3 Schematic diagram of the structure at A in the middle.

[0022] Description of the reference numerals: 100, main body; 200, connecting rod; 300, rotor; 400, inflatable device; 410, fan; 420, connecting pipe; 421, air inlet; 500, fixing device; 600, launching and transporting device; 610, inner shell; 611, hatch; 620, outer soft shell; 630, connecting device; 640, supporting device; 641, supporting leg; 642, air guide cavity; 643, air outlet; 645, pressure relief valve; 646, vibration reduction slip ring; 647 , shock-absorbing spring; 648, block; 650, rolling unloading device; 651, air duct; 6511, air guide port; 6512, connecting hole; 652, elastic component; 653, telescopic chamber; 654, dividing strip; 6541, sub-chamber; 655, closed cylinder; 6551, avoidance hole; 656, guide strip; 6561, first sub-chamber; 6562, second sub-chamber; 657, guide device; 6571, guide cylinder; 6572, guide ring; 6573, guide piston.

[0023] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Please refer to Figure 1-Figure 6 The present invention proposes an automatic inflatable manned drone, including a main body 100, a connecting rod 200, a rotor 300, a fixing device 500, an automatic inflatable manned airbag 600 and an inflating device 400. The main body 100 is connected to the rotor 300 through the connecting rod 200; the main body 100 is connected to the automatic inflatable manned airbag 600 through the fixing device 500. The automatic inflatable manned airbag 600 includes an inner shell 610 and an outer soft shell 620. The outer soft shell 620 is sleeved on the outside of the inner shell 610 to form an air storage cavity. The inflating device 400 is used to inflate the air storage cavity.

[0030] In the technical solution of the present invention, when the UAV needs to deliver personnel or cargo in complex terrain or difficult-to-land areas, the delivery and transportation device 600 is directly used. The inner shell 610 and the outer soft shell 620 of the delivery and transportation device 600 form an air storage cavity, thereby forming an air bag. The air bag shock absorption technology relies on the compression and deformation of the air bag to generate elastic force to absorb and disperse the impact energy generated to achieve a stronger shock absorption effect, and the manufacturing and maintenance costs of the air bag are relatively low.

[0031] In another embodiment of the present invention, the inflation device 400 includes a fan 410 and a connecting pipe 420, one end of the connecting pipe 420 is provided with an air inlet 421, the air inlet 421 is arranged below the rotor 300, the other end of the connecting pipe 420 is connected to the fan 410, and the fan 410 is connected to the air storage chamber.

[0032] Specifically, the air inlet 421 is arranged below the rotor 300. The downward pressure wind generated by the rotor 300 enters the connecting pipe 420 through the air inlet 421, and then enters the air storage chamber through the fan 410. The downward pressure wind blown onto the connecting rod 200 is collected through the air inlet 421, which can improve the lifting performance of the drone. At the same time, the downward pressure wind of the rotor 300 enters the air inlet 421 and is pressurized by the fan 410, which can save more energy.

[0033] In another embodiment of the present invention, the air inlet 421 is disposed on the connecting rod 200 , and the connecting pipe 420 is disposed inside the connecting rod 200 .

[0034] Specifically, the connecting rod 200 is hollow for guidance, and the connecting rod 200 and the connecting pipe 420 are combined into one to reduce weight.

[0035] An automatically inflatable passenger airbag, characterized in that it includes an inner shell 610, an outer soft shell 620, a connecting device 630 and a supporting device 640, wherein a connecting device 630 is provided at one end of the inner shell 610, and the connecting device 630 is used to connect to an aircraft, the outer soft shell 620 is sleeved on the outside of the inner shell 610 to form an air storage chamber, and the supporting device 640 is used to connect the inner shell 610 and the outer soft shell 620, and a hatch 611 is opened on the inner shell 610, and the outer soft shell 620 is provided on the outside of the hatch 611 to form an air storage chamber.

[0036] Specifically, the vibration reduction effect is achieved through the air storage chamber.

[0037] More specifically, the hatch 611 includes an arc-shaped door panel hinged to the inner shell, and an outer soft shell 620 connected to the arc-shaped door panel. The air storage chamber formed by the arc-shaped door panel and the outer soft shell 620 is connected to the air intake, pressure relief valve or other air storage chambers through a flexible connecting pipe, thereby achieving interconnection and the effect of opening and closing the hatch, putting in cargo or carrying people.

[0038] More specifically, the automatically inflated manned airbag provided by the present invention is suitable for carrying people and cargo. It has restrictions on the operating height according to the weight of the cargo or passengers, as well as the structure, size and material of the airbag. It is used for low-altitude drone landing or for delivery at a certain height, but is not suitable for direct high-altitude delivery. When delivering at high altitude, it is equipped with other deceleration devices (such as deceleration parachutes, deceleration rockets, etc.) to avoid injury to the human body or damage to cargo.

[0039] In another embodiment of the present invention, the automatically inflated passenger airbag can be used to protect the life safety of personnel on large passenger aircraft.

[0040] In yet another embodiment of the present invention, a parachute is further included, and the parachute is connected to the inner shell 610 .

[0041] In another embodiment of the present invention, the supporting device 640 includes at least two supporting legs 641, one end of the supporting leg 641 is connected to the inner shell 610, and the other end of the supporting leg 641 extends out of the outer soft shell 620, an air guide cavity 642 is arranged inside the supporting leg 641, and the air storage cavity is connected to the air guide cavity 642 through a pressure relief valve 645, and an air outlet hole 643 is arranged at the end of the supporting leg 641 away from the inner shell 610, and the air outlet hole 643 is connected to the air guide cavity 642.

[0042] Specifically, the air storage chamber is connected to the air guide chamber 642 via a pressure relief valve 645, so that the compressed gas in the air storage chamber enters the air guide chamber 642 through the pressure relief valve 645, and then is ejected through the air outlet, providing an anti-gravity force, thereby achieving the effect of reducing vibration and speed.

[0043] In another embodiment of the present invention, the supporting device 640 includes three evenly distributed supporting legs 641 .

[0044] In another embodiment of the present invention, the support leg 641 also includes a vibration damping device, and the vibration damping device is arranged at one end of the support leg 641 away from the inner shell 610, and the vibration damping device includes a vibration damping slip ring 646, a vibration damping spring 647 and a block 648. The vibration damping slip ring 646 is sleeved on the outside of the support leg 641, one end of the vibration damping spring 647 is connected to the vibration damping slip ring 646, and the other end of the vibration damping spring 647 is connected to the block 648, and the block 648 is fixedly connected to the support leg 641.

[0045] Specifically, further vibration reduction is performed through a vibration reduction device. A vibration reduction slip ring 646 is sleeved on the outside of the support leg 641. One end of a vibration reduction spring 647 is connected to the vibration reduction slip ring 646. The other end of the vibration reduction spring 647 is connected to the block 648. The elastic force of the vibration reduction spring 647 is used to reduce vibration without affecting the gas ejection.

[0046] In another embodiment of the present invention, a rolling unloading device 650 is further included, and the rolling unloading device 650 includes an air duct 651, an elastic component 652 and a telescopic chamber 653 arranged on the inner shell 610, the telescopic chamber 653 is arranged on the inner side of the inner shell 610, the air storage chamber is connected to the telescopic chamber 653 through a pressure relief valve 645, one end of the air duct 651 is slidably arranged in the telescopic chamber 653 and is connected to the telescopic chamber 653, the other end of the air duct 651 extends out of the telescopic chamber 653, and an air duct port 651 is provided at one end of the air duct 651 extending out of the telescopic chamber 653, the axis of the air duct port 651 is arranged parallel to the tangent of the inner shell 610, and the elastic component 652 is connected to the air duct 651.

[0047] Specifically, one end of the air duct 651 is slidably disposed in the telescopic cavity 653 and is connected to the telescopic cavity 653, and the other end of the air duct 651 extends out of the telescopic cavity 653. When the air storage cavity is pressurized, the gas in the air storage cavity enters the telescopic cavity 653 through the pressure relief valve 645, and then is ejected through the air guide port 6511 of the air duct 651, thereby providing a tangential force.

[0048] In another embodiment of the present invention, a sealed tube 655 is provided in the telescopic cavity 653, and the sealed tube 655 is sleeved on the outside of the air duct 651. A connecting hole 6512 is provided at one end of the air duct 651 connected to the sealed tube 655. An avoidance hole 6551 is provided on the sealed tube 655. When the air duct 651 extends out of the inner shell 610, the connecting hole 6512 and the avoidance hole 6551 are connected.

[0049] Specifically, when the air duct 651 extends out of the inner shell 610, the connection hole 6512 is connected to the avoidance hole 6551, and when the air duct 651 is compressed back into the inner shell 610, the connection hole 6512 and the avoidance hole 6551 are not connected, so that the air outlet 6511 of the air duct 651 does not emit air.

[0050] More specifically, in another embodiment of the present invention, the relatively arranged sub-cavities 6541 are connected.

[0051] The relatively arranged sub-chambers 6541 are connected and have the same pressure, so that the gas can enter the pressure relief chamber through the pressure relief valve 645 when it abuts the ground. However, when the air duct 651 cannot be extended, the gas cannot be sprayed out. The air duct 651 connected to the sub-chamber 6541 relatively to the ground can spray out the airflow tangential to the inner shell 610 through the air duct 651, thereby driving the inner shell 610 to roll and unload the force. At the same time, the air duct 651 connected to the relatively arranged sub-chamber 6541 applies a tangential force to the inner shell 610, which, in combination with the friction force, makes it easier to drive the inner shell 610 to rotate.

[0052] In another embodiment of the present invention, it also includes a partition bar 654, which divides the air storage chamber into at least two sub-chambers 6541 evenly distributed circumferentially along the axis of the inner shell 610, and the sub-chambers 6541 are respectively arranged and connected to the telescopic chamber 653, and the air guide ports 6511 of the rolling unloading device 650 connected to the relatively arranged sub-chambers 6541 are arranged in opposite directions.

[0053] Specifically, the air storage chamber is divided into at least two sub-chambers 6541 evenly distributed along the circumferential direction of the axis of the inner shell 610 by the dividing strip 654. When rolling, it may not rotate according to the plane where the dividing strip 654 is located, thereby causing the force direction provided by the air guide port 6511 to cross or be opposite, causing the inner shell 610 to roll randomly and become uncontrollable.

[0054] Please refer to Figure 3 In another embodiment of the present invention, a guide bar 656 is further included, and the guide bar 656 is used to divide the sub-chamber 6541 into a first sub-chamber 6561 and a second sub-chamber 6562. The guide bar 656 is arranged perpendicular to the axis of the inner shell 610. A guide cylinder 6571 and a guide ring 6572 are arranged in the telescopic chamber 653. The guide cylinder 6571 includes a guide piston 6573. The two ends of the guide piston 6573 are respectively connected to the first sub-chamber 6561 and the second sub-chamber 6562. The guide piston 6573 is connected to the guide ring 6572. The guide ring 6572 is slidably arranged along the axis of the air duct 651. A clamping block 648 is arranged on the guide ring 6572. The clamping block 648 is used to drive the air duct 651 to rotate when the guide ring 6572 rotates.

[0055] Specifically, when the landing position or rolling position of the delivery and transport device 600 is not in the middle of the first sub-chamber 6561 and the second sub-chamber 6562, resulting in uneven force on the first sub-chamber 6561 and the second sub-chamber 6562, the guide ring 6572 is driven to rotate by the guide piston 6573, and the guide ring 6572 is driven to rotate when rotating, and the air duct 651 is driven to rotate, and the air guide port 6511 moves toward the sub-chamber 6541 with higher pressure, thereby achieving the airflow of the air guide port 6511 to blow to the sub-chamber 6541 with higher pressure, and providing a lateral force to make the rolling direction of the inner shell 610 rotate along the plane where the dividing strip 654 is located.

[0056] More specifically, when the first sub-chamber 6561 and the second sub-chamber 6562 are subjected to uniform force, an angle is set between the plane of the dividing strip 654 and the axial wind direction of the air guide port 6511, so that the inner shell 610 rolls around a spiral trajectory when rotating and rolling, thereby controlling the rolling range of the inner shell 610 and reducing the impact on the terrain.

[0057] More specifically, the guide cylinder 6571 is disposed on the other side of the air guide duct 651 where the air outlet is disposed.

[0058] More specifically, in another embodiment of the present invention, the first sub-cavities 6561 on the same side of the sub-cavities 6541 that are arranged opposite to each other are communicated with each other, and the second sub-cavities 6562 on the same side of the sub-cavities 6541 that are arranged opposite to each other are communicated with each other.

[0059] The first sub-cavities 6561 on the same side of the sub-cavities 6541 that are arranged opposite to each other are communicated with each other, and the second sub-cavities 6562 on the same side of the sub-cavities 6541 that are arranged opposite to each other are communicated with each other.

[0060] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An automatic inflatable manned drone, characterized in that: The invention comprises a main body, a connecting rod, a rotor, a fixing device, an automatic inflatable passenger airbag and an inflating device, wherein the main body is connected to the rotor via the connecting rod; the main body is connected to the automatic inflatable passenger airbag via the fixing device, the automatic inflatable passenger airbag comprises an inner shell and an outer soft shell, the outer soft shell is sleeved on the outer side of the inner shell to form an air storage cavity, and the inflating device is used for inflating the air storage cavity.

2. The automatic inflatable manned drone according to claim 1, characterized in that: The inflation device includes a fan and a connecting pipe, one end of the connecting pipe is provided with an air inlet, the air inlet is arranged below the rotor, the other end of the connecting pipe is connected to the fan, and the fan is connected to the air storage chamber.

3. The automatic inflatable manned drone according to claim 2, characterized in that: The air inlet is arranged on the connecting rod, and the connecting pipe is arranged inside the connecting rod.

4. An automatically inflatable passenger airbag, characterized in that: It includes an inner shell, an outer soft shell, a connecting device and a supporting device. A connecting device is provided at one end of the inner shell, and the connecting device is used to connect to an aircraft. The outer soft shell is sleeved on the outer side of the inner shell to form an air storage chamber. The supporting device is used to connect the inner shell and the outer soft shell. A cabin door is opened on the inner shell, and the outer soft shell is provided on the outer side of the cabin door to form an air storage chamber.

5. An automatically inflatable passenger airbag as claimed in claim 4, characterized in that: The supporting device includes at least two supporting legs, one end of the supporting leg is connected to the inner shell, and the other end of the supporting leg extends out of the outer soft shell, an air guide cavity is arranged inside the supporting leg, and the air storage cavity is connected to the air guide cavity through a pressure relief valve, and an air outlet is arranged at one end of the supporting leg away from the inner shell, and the air outlet is communicated with the air guide cavity.

6. An automatically inflating passenger airbag as claimed in claim 5, characterized in that: The support leg also includes a vibration damping device, which is arranged at one end of the support leg away from the inner shell, and includes a vibration damping slip ring, a vibration damping spring and a clamping block. The vibration damping slip ring is sleeved outside the support leg, one end of the vibration damping spring is connected to the vibration damping slip ring, and the other end of the vibration damping spring is connected to the clamping block, and the clamping block is fixedly connected to the support leg.

7. An automatically inflating passenger airbag as claimed in claim 4, characterized in that: It also includes a rolling unloading device, which includes an air duct, an elastic component and a telescopic chamber arranged on the inner shell, the telescopic chamber is arranged on the inner side of the inner shell, the air storage chamber is connected to the telescopic chamber through a pressure relief valve, one end of the air duct is slidably arranged in the telescopic chamber and is connected to the telescopic chamber, the other end of the air duct extends out of the telescopic chamber, and an air guide port is arranged at one end of the air duct extending out of the telescopic chamber, the axis of the air guide port is arranged parallel to the tangent of the inner shell, and the elastic component is connected to the air duct.

8. An automatically inflating passenger airbag as claimed in claim 7, characterized in that: It also includes a partition strip, which divides the air storage chamber into at least two sub-chambers evenly distributed along the circumferential direction of the axis of the inner shell, and the sub-chambers are respectively provided with and connected to the rolling unloading devices, and the air guide ports of the rolling unloading devices connected to the relatively arranged sub-chambers are arranged in opposite directions.

9. An automatically inflating passenger airbag as claimed in claim 8, characterized in that: A sealed cylinder is arranged in the telescopic cavity, and the sealed cylinder is sleeved on the outside of the air duct. A connecting hole is arranged at one end of the air duct connected with the sealed cylinder sleeve. An avoidance hole is arranged on the sealed cylinder. When the air duct extends out of the inner shell, the connecting hole and the avoidance hole are connected. The automatically inflated manned airbag can be used to protect the lives of people on large passenger aircraft.

10. An automatically inflatable passenger airbag as claimed in claim 8, characterized in that: It also includes a guide bar and a guide device, the guide bar is used to divide the sub-chamber into a first sub-chamber and a second sub-chamber, the guide bar is arranged perpendicular to the axis of the inner shell, the guide device is arranged in the telescopic chamber, the guide device includes a guide cylinder and a guide ring, the guide cylinder includes a guide piston, the two ends of the guide piston are respectively connected to the first sub-chamber and the second sub-chamber, the guide piston is connected to the guide ring, the guide ring is slidably arranged along the axis of the air duct, and a clamping block is arranged on the guide ring, and the clamping block is used to drive the air duct to rotate when the guide ring rotates.

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