Auxiliary device for aircraft parachuting

Abstract

The utility model discloses an auxiliary device for airplane parachuting, a plane pedal is fixed on a fuselage on the outer side of an airplane parachuting cabin door, a plane pedal main body is of a horizontal plate-shaped structure and is located on the outer side of the bottom of the airplane parachuting cabin door, and the plane pedal horizontally extending outwards is formed on the outer side of the bottom of the airplane parachuting cabin door. The fixed auxiliary plane pedal is arranged outside the parachuting cabin door of the aircraft, the take-off position of the paratrooper is extended, the purpose of avoiding top interference of the parachuting cabin door is achieved, the paratrooper can take off with full force, and the problem that when the paratrooper lands from the side parachuting door in an airborne mode, the paratrooper cannot take off the parachuting cabin door is solved. And the problem that the paratrooper collides with a rear cabin door or collides with an opposite paratrooper during airborne landing is solved, and the safety of airborne landing of the paratrooper is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of aircraft structural design, further relates to the field of aircraft airborne jump assisting structure, and in particular relates to an assisting device for aircraft jump. BACKGROUND

[0002] In the process of exploring the development of tactical transport aircraft, a major challenge related to the safety of airborne jump was encountered. Specifically, when the design team decided to set jump doors on both sides of the rear of the fuselage, the adverse effects of the unexpected aerodynamic flow field began to emerge. The original intention of this layout is to facilitate the rapid evacuation of paratroopers, however, actual tests have revealed a potential safety hazard: the complex aerodynamic flow field generated by the aircraft during flight will have a strong effect on the paratroopers jumping out of the jump doors on both sides.

[0003] Specifically, when paratroopers jump out of the jump doors on both sides of the fuselage, they are often affected by a strong wake flow, which will involuntarily push them towards the tail of the fuselage. In this situation, not only can paratroopers directly collide with the open tail rear cargo door, but if two paratroopers jump out of jump doors on different sides at the same time, they may also unexpectedly meet in the tail area due to the traction of the aerodynamic flow field, greatly increasing the risk of collision. These unexpected situations seriously threaten the safety of paratroopers and violate the basic principle of tactical transport aircraft design, which is to ensure that all passengers can safely evacuate in emergency situations.

[0004] To address this challenge, the initial consideration was to require paratroopers to jump outwards with force when jumping, in order to offset the effects of the aerodynamic flow field by increasing the initial speed. However, this solution immediately encountered a new problem: due to the compact design of the cross-sectional shape of the tactical transport aircraft fuselage, when paratroopers stand at the jump door ready to jump, their heads are often still within the interior space of the cabin. Therefore, when paratroopers jump outwards with all their might, their heads are extremely likely to collide with the top structure of the jump door, which not only can cause serious head injuries, but also can affect the smooth completion of the jump action, further increasing the risk of the jump process.

[0005] In summary, the selection of jump door location and the resulting aerodynamic flow field problem, as well as the risk of head collision that paratroopers may encounter when jumping, together constitute a major challenge in the development of tactical transport aircraft. In order to overcome this difficulty, the design team needs to explore safer and more effective jump door layout solutions and corresponding jump assisting measures to ensure that paratroopers can safely and smoothly evacuate the aircraft in any emergency situation. CONTENT OF THE INVENTION

[0006] The utility model discloses a purpose at providing a kind of auxiliary device for aircraft parachuting, to overcome the problem that current aircraft parachuting structure is prone to cause paratrooper to be influenced by aerodynamic flow field when parachuting from side parachuting door, avoid the problem that paratrooper parachuting will knock into rear cabin door or collide with opposite paratrooper, greatly increase the security of paratrooper parachuting.

[0007] To achieve the above object, the utility model adopts the technical scheme as follows:

[0008] A kind of auxiliary device for aircraft parachuting, including plane pedal;

[0009] Plane pedal is fixed on the fuselage outside aircraft parachuting cabin door, the plane pedal main body is horizontal plate structure, the height of plane pedal is not higher than the height of aircraft cabin floor.

[0010] Preferably, the both ends of the plane pedal are fixed on the fuselage outside aircraft parachuting cabin door through connecting structure.

[0011] Preferably, the connecting structure includes upper segment connecting structure and lower segment connecting structure, and the plane pedal is fixed between the upper segment connecting structure and the lower segment connecting structure.

[0012] Preferably, the upper segment connecting structure includes upper end left member and upper end right member, and the upper end left member and the upper end right member are respectively arranged at the both ends of the plane pedal, for connecting the both ends of the plane pedal with the fuselage on both sides of the aircraft parachuting cabin door.

[0013] Preferably, the lower segment connecting structure includes lower end left member and lower end right member, and the lower end left member and the lower end right member are respectively arranged at the left and right sides of the lower end of the plane pedal, for connecting the both ends of the plane pedal with the fuselage on the lower side of the parachuting cabin door.

[0014] Preferably, the connecting structure is riveted and fixed with the outer wall of the fuselage.

[0015] Preferably, a lateral side turning edge connected with the fuselage is arranged on the connecting structure, and a riveting hole is arranged on the lateral side turning edge of the connecting structure.

[0016] Preferably, a bottom side turning edge connected with the plane pedal is arranged on the connecting structure, and a riveting hole is arranged on the bottom side turning edge of the connecting structure.

[0017] Preferably, a plurality of lightening holes are arranged on the connecting structure, and the plane pedal adopts a hollow structure.

[0018] Preferably, the plane pedal is made of alloy material.

[0019] Compared with the prior art, the utility model has the following beneficial technical effects:

[0020] The utility model provides a kind of for aircraft parachuting auxiliary device, plane pedal is fixed on the fuselage outside aircraft parachuting cabin door, the plane pedal main part is horizontal plate structure, located the outside of aircraft parachuting cabin door bottom, form the plane pedal of horizontal outward extension outside aircraft parachuting cabin door bottom, the height of plane pedal is not higher than the height of aircraft cabin floor, the application is by being set outside aircraft parachuting cabin door fixed auxiliary plane pedal, extend paratrooper take-off position, reach the purpose of avoiding parachuting cabin door top interference, so that paratrooper can take off with full strength, solve the problem that paratrooper is influenced by aerodynamic flow field when parachuting from side parachuting door, avoid the problem that paratrooper parachuting will knock into rear cabin door or collide with opposite paratrooper, greatly increase the security of paratrooper parachuting.

[0021] Preferably, the shape of the plane pedal is a horizontal plate structure, forming a horizontal outward extension platform outside the bottom of the aircraft parachuting cabin door. This design not only provides a more spacious take-off area for paratroopers, but also ensures that the height of the plane pedal is not higher than the height of the aircraft cabin floor, thereby effectively avoiding unnecessary contact or collision between the paratroopers and the cabin door top during take-off, ensuring the coherence and safety of paratrooper actions.

[0022] Preferably, the structure of the side turning edge is designed to ensure that the connection part with the aircraft body can closely fit, thereby providing stable and reliable connection. This design not only enhances the overall stability of the aircraft structure, but also helps to disperse and bear various loads that may occur during flight. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the front view of the auxiliary device for aircraft parachuting in the utility model embodiment.

[0024] Figure 2 It is the perspective structure schematic diagram of the auxiliary device for aircraft parachuting in the utility model embodiment.

[0025] In the figure, 1, fuselage; 2, aircraft parachuting cabin door; 3, plane pedal; 4, connection structure; 5, aircraft cabin floor; 6, weight-reducing hole. DETAILED DESCRIPTION

[0026] In order to make the personnel in the technical field better understand the utility model scheme, the technical scheme in the utility model embodiment will be described clearly and completely below by combining with the drawings in the utility model embodiment. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor should belong to the scope of protection of the utility model.

[0027] It should be noted that the terms "first", "second", and the like in the description and claims of the utility model and the above drawings are used to distinguish similar objects, and do not have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0028] As Figure 1 The utility model provides a kind of auxiliary device for aircraft parachuting, including plane pedal 3, plane pedal 3 is fixed on the fuselage 1 outside aircraft parachuting hatch 2, the plane pedal 3 main part is horizontal plate structure, located at the bottom of aircraft parachuting hatch 2 outside, form horizontal outward extension plane pedal at the bottom of aircraft parachuting hatch 2 outside, the height of plane pedal 3 is not higher than the height of aircraft cabin floor 5, the application is by being set outside aircraft parachuting hatch 2 fixed auxiliary plane pedal 3, extends paratrooper take-off position, reach the purpose of avoiding parachuting hatch top interference, so that paratrooper can take off with full force, solve the problem that paratrooper is influenced by aerodynamic flow field when parachuting from side parachuting door, avoid the problem that paratrooper parachuting will knock into rear hatch or collide with opposite paratrooper, greatly increase the safety of paratrooper parachuting.

[0029] In the specific embodiment of the application, the main body of the plane pedal 3 is made of high-strength, lightweight alloy material to ensure that it can withstand dynamic load during parachuting and maintain overall lightweight, reducing the impact on the flight performance of the aircraft.

[0030] In the specific embodiment of the application, the plane pedal 3 is in the shape of a horizontal plate structure, forming a horizontal outward extension platform at the bottom outside of the aircraft parachuting hatch 2. This design not only provides a more spacious take-off area for paratroopers, but also ensures that the height of the plane pedal 3 is not higher than the height of the aircraft cabin floor 5, thereby effectively avoiding unnecessary contact or collision between the paratroopers and the top of the hatch during take-off, ensuring the continuity and safety of the paratroopers' actions.

[0031] The application substantially expands the take-off space of the paratroopers by adding the fixed flat pedal outside the aircraft jump door, so that the paratroopers can take off with full strength without being limited by the structure of the door. This change is crucial to improving the accuracy and stability of paratroopers' air landing, especially in complex aerodynamic flow field environment, which greatly reduces the risk of paratroopers deviating from the predetermined jump trajectory due to air flow interference.

[0032] The application also effectively alleviates another major safety hazard in the process of paratroopers' air landing, i.e. the mutual collision of paratroopers and the problem of possible collision with the rear door due to the narrow space. By providing each paratrooper with a relatively independent and safe take-off platform, the device ensures that each paratrooper can complete the jump action safely, greatly enhancing the safety factor of the overall air landing operation.

[0033] In the specific embodiment of the application, the two ends of the flat pedal 3 are fixed to the aircraft fuselage 1 outside the aircraft jump door 2 through the connecting structure 4, as shown in Figure 2 The connecting structure 4 includes an upper connecting structure and a lower connecting structure, the upper connecting structure includes an upper left member and an upper right member, and the upper left member and the upper right member are respectively arranged at the two ends of the flat pedal 3, for connecting the two ends of the flat pedal 3 with the aircraft fuselage 1 on both sides of the aircraft jump door 2. The lower connecting structure includes a lower left member and a lower right member, and the lower left member and the lower right member are respectively arranged on the left and right sides of the lower end of the flat pedal 3, for connecting the two ends of the flat pedal 3 with the aircraft fuselage 1 below the jump door 2.

[0034] As shown in Figure 2 In the specific embodiment of the application, the connecting structure 4 specifically adopts a connecting angle piece, the connecting structure 4 is attached to the outer wall of the aircraft fuselage 1, and the connecting structure 4 is riveted and fixed to the outer wall of the aircraft fuselage 1.

[0035] The connecting structure 4 is provided with a side turning edge connected with the aircraft fuselage 1, and also provided with a side turning edge connected with the flat pedal 3, the upper connecting structure and the lower connecting structure are respectively located on the upper and lower sides of the flat pedal 3, and the flat pedal 3 is respectively connected with the upper connecting structure and the lower connecting structure through riveting. The structure design of the side turning edge ensures that the connecting part with the aircraft body can be closely attached, thereby providing stable and reliable connection. This design not only enhances the overall stability of the aircraft structure, but also helps to disperse and bear various loads that may occur during flight.

[0036] The connecting structure 4 is provided with a side turning edge connected with the flat pedal 3, so as to ensure that the connecting part of the flat pedal 3 can be accurately matched, thereby realizing stable connection. The connecting structure 4 can effectively fix the flat pedal 3 at a predetermined position, and prevent the flat pedal 3 from loosening or moving during flight.

[0037] In the structure design of the connecting structure 4, the upper connecting structure and the lower connecting structure are adopted. The two kinds of connecting structures are located on the upper and lower sides of the flat pedal 3, and form a complete connecting system. The upper connecting structure and the lower connecting structure are manufactured by precise manufacturing process and strict quality control, so as to ensure that the connecting strength and stability can meet the requirements of the aircraft structure.

[0038] In the actual installation process, the flat pedal 3 is fixedly connected with the upper connecting structure and the lower connecting structure by riveting, and has the advantages of high connecting strength and good stability. By adopting the riveting fixed connection, the connection between the flat pedal 3 and the connecting structure 4 is more firm and reliable, so as to further improve the overall stability and safety of the aircraft structure.

[0039] In order to reduce the overall weight of the aircraft, under the premise of ensuring the connecting strength of the connecting structure, a plurality of lightening holes 6 are arranged on the connecting structure 4. The opening structure can reduce the aerodynamic resistance, and the flat pedal 3 adopts a hollow structure design.

[0040] The application does not exclude other forms of connecting structure for connecting the flat pedal 3 to the aircraft fuselage under the lower side of the parachute cabin door.

[0041] The flat pedal 3 is installed, which not only solves many problems caused by the cabin door structure limitation and aerodynamic flow field interference in the parachuting process of the parachutist, but also significantly improves the safety and success rate of the parachuting of the parachutist, and provides more reliable technical support for the parachuting action.

[0042] In another embodiment of the application, a mounting method of an auxiliary device for aircraft air landing is provided, the auxiliary device for aircraft air landing includes a flat pedal 3, the flat pedal 3 is fixed to the fuselage 1 outside the aircraft parachute cabin door 2, the main body of the flat pedal 3 is a horizontal plate structure, and is located outside the bottom of the aircraft parachute cabin door 2, so as to form a horizontal outwardly extending flat pedal outside the bottom of the aircraft parachute cabin door 2; the height of the flat pedal 3 is not higher than the height of the aircraft cabin floor 5; the connecting structure 4 includes an upper connecting structure and a lower connecting structure; the upper connecting structure and the lower connecting structure each include a left member and a right member; the flat pedal 3 is fixed between the upper connecting structure and the lower connecting structure; the two left members and the two right members are used for fixing the flat pedal 3 left and right, and can also realize the fixing of the flat pedal 3 up and down, so that the flat pedal 3 is not loose during use, and the mounting method comprises the following steps:

[0043] According to the height of the aircraft fuselage 1 and the size of the aircraft jump cabin door 2, a corresponding size of the flat pedal 3 is selected, and according to the installation position of the flat pedal 3, the lower segment connecting structure is fixed on the lower end of the flat pedal 3 installation position of the aircraft fuselage 1, and the distance between the upper end of the lower segment connecting structure and the aircraft cabin floor 5 is not greater than the thickness of the flat pedal 3;

[0044] After the lower segment connecting structure is fixed and installed, the flat pedal 3 is placed on the lower segment connecting structure, and then the anchoring connection is performed to avoid stress between the lower segment connecting structure and the flat pedal 3, thereby causing the problem of stress concentration of the fuselage.

[0045] Then the upper segment connecting structure is fixed on the upper end of the flat pedal 3 of the aircraft fuselage 1, the bottom of the upper segment connecting structure is in contact with the upper end surface of the flat pedal 3, and then the flat pedal 3 and the upper segment connecting structure are riveted and fixed, thereby completing the fixed installation of the flat pedal 3.

[0046] The above is only to illustrate the technical idea of the present application, and cannot be used to limit the protection scope of the present application. Any modification made on the basis of the technical scheme according to the technical idea of the present application falls within the protection scope of the claims of the present application.

Claims

1. An auxiliary device for skydiving from an aircraft, characterized in that, The plane step (3) is fixed on the plane body (1) outside the plane jump cabin door (2), the plane step (3) is horizontal plate structure, the height of the plane step (3) is not higher than the height of the plane cabin floor (5). The both ends of the plane step (3) are fixed on the plane body (1) outside the plane jump cabin door (2) through the connecting structure (4).

2. An auxiliary device for skydiving from an aircraft according to claim 1, characterized in that, The connecting structure (4) includes upper connecting structure and lower connecting structure, the plane step (3) is fixed between the upper connecting structure and the lower connecting structure.

3. An auxiliary device for skydiving from an aircraft as claimed in claim 1, characterized in that, The upper connecting structure includes upper left member and upper right member, the upper left member and the upper right member are respectively arranged at the both ends of the plane step (3), and are used for connecting the both ends of the plane step (3) with the plane body (1) on both sides of the plane jump cabin door (2).

4. An auxiliary device for skydiving from an aircraft as claimed in claim 3, characterized in that, The lower connecting structure includes lower left member and lower right member, the lower left member and the lower right member are respectively arranged at the left side and the right side of the lower end of the plane step (3), and are used for connecting the both ends of the plane step (3) with the plane body (1) on the lower side of the plane jump cabin door (2).

5. An auxiliary device for skydiving from an aircraft as claimed in claim 3, characterized in that, The connecting structure (4) is riveted and fixed with the outer wall of the plane body (1).

6. An auxiliary device for skydiving from an aircraft as defined in claim 1, characterized in that The connecting structure (4) is provided with lateral side turning edge connected with the plane body (1), and the lateral side turning edge of the connecting structure (4) is provided with riveting hole.

7. An auxiliary device for skydiving from an aircraft as claimed in claim 6, characterized in that, The connecting structure (4) is provided with bottom side turning edge connected with the plane step (3), and the bottom side turning edge of the connecting structure (4) is provided with riveting hole.

8. An auxiliary device for skydiving from an aircraft as claimed in claim 6, characterized in that, The connecting structure (4) is provided with a plurality of lightening holes, and the plane step (3) adopts hollow structure.

9. An auxiliary device for skydiving from an aircraft as defined in claim 1, characterized in that The plane step (3) is made of alloy material.

10. An auxiliary device for skydiving from an aircraft as defined in claim 1, characterized in that ​

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