A target aircraft zero-length boost rocket launcher port folding door mechanism

Abstract

The application relates to a folding door, in particular to a target machine zero-length boost rocket launching port folding door mechanism. The mechanism comprises folding door plates, torsion spring hinges, quick-release locks and quick-release lock locking mechanisms; the number of the folding door plates is two, and the two folding door plates are oppositely arranged at a rocket launching port; when the two folding door plates are in a closed state, the two folding door plates are matched with the rocket launching port; the torsion spring hinges are divided into two groups; one end of the two groups of torsion spring hinges is respectively arranged on the two folding doors, and the other end is respectively arranged at the rocket launching port of the target machine; the quick-release locks are divided into two groups; the two groups of quick-release locks are respectively arranged on the two folding doors; the quick-release lock locking mechanisms are divided into two groups; the two groups of quick-release lock locking mechanisms are respectively arranged at the rocket launching port of the target machine and are respectively arranged in correspondence with the two groups of quick-release locks. The target machine zero-length boost rocket launching port composite material folding door mechanism provided by the application can realize the function that the folding door is quickly and reliably closed after the zero-length boost rocket is worked and cold separated in the launching stage.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of folding doors, in particular to a kind of target machine zero-length boost rocket launch port folding door mechanism. BACKGROUND

[0002] The target machine that existing zero-length boost rocket is launched by zero-length boost method generally needs to be cold separated after zero-length boost, and at the same time, an opening is left on the shell of the target machine body. The scheme of not processing the rocket launch port on the body due to the fact that the rocket launch port on the body cannot be closed, the flight resistance of the target machine is large, and the stealth performance is poor. The maximum flight time, maximum maneuver and maximum Mach number and RCS index are difficult to further improve, and the structure size of part of zero-length boost rocket is large. The opening left on the body after work is completed will further affect the flight stability of the target machine, and therefore, it is usually applied to low-speed, short-haul target machines.

[0003] The existing high-speed, long-haul target machine usually uses a gas-actuated folding door to shield the rocket launch port after the cold separation of the zero-length boost rocket and the target machine. However, the existing gas-actuated folding door has a complex structure and low reliability, which is difficult to meet the actual needs. SUMMARY

[0004] The purpose of the present application is to solve the technical problem that the existing high-speed, long-haul target machine uses a gas-actuated folding door with a complex structure and low reliability, which is difficult to meet the actual needs, and to provide a target machine zero-length boost rocket launch port folding door mechanism.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0006] A target machine zero-length boost rocket launch port folding door mechanism, characterized in that:

[0007] It comprises a folding door plate, a torsional spring hinge, a quick-release lock and a quick-release lock locking mechanism.

[0008] The number of folding door plates is two, and they are oppositely arranged at the rocket launch port. When the two folding door plates are in a closed state, they are adapted to the rocket launch port. The folding door plates are used to open the rocket launch port when the zero-length boost rocket is installed to the rocket launch port, and to shield the rocket launch port after the cold separation of the zero-length boost rocket and the target machine.

[0009] The torsional spring hinges are divided into two groups, each group comprising at least one torsional spring hinge. One end of the two groups of torsional spring hinges is respectively installed on the two folding doors, and the other end is respectively installed at the rocket launch port of the target machine, for automatically closing the folding door plates after the cold separation of the zero-length boost rocket and the target machine.

[0010] The quick-release locks are divided into two groups, each group comprising at least one quick-release lock; the two groups of quick-release locks are respectively installed on the two folding doors;

[0011] The quick-release lock locking mechanisms are divided into two groups, each group comprising at least one quick-release lock locking mechanism; the two groups of quick-release lock locking mechanisms are respectively installed at the rocket launch ports of the target machine and are respectively arranged correspondingly to the two groups of quick-release locks, for locking the folding door plates on the target machine when the folding door plates are closed.

[0012] Further, the number of quick-release locks and quick-release lock locking mechanisms in each group is two;

[0013] The two quick-release locks in the same group are respectively installed at positions close to the nose and tail of the target machine on the folding door plates;

[0014] The two quick-release lock locking mechanisms in the same group are respectively installed at positions close to the nose and tail of the target machine on the rocket launch ports.

[0015] Further, the folding door support legs are also included;

[0016] The folding door support legs are divided into two groups, each group comprising at least one folding door support leg; one end of the two groups of folding door support legs is respectively installed on the inner side wall of the two folding door plates, and the other end is used for abutting against the outer shell of the zero-length boost rocket when the zero-length boost rocket is installed at the rocket launch port.

[0017] Further, the number of folding door support legs in each group is two, and the two folding door support legs in the same group are different in length, one folding door support leg in the same group which is longer is installed at a position close to the tail of the target machine on the inner side wall of the folding door plate and is away from the side of the torsional spring hinge arranged on the folding door plate, and one folding door support leg in the same group which is shorter is installed at a position close to the nose of the target machine on the inner side wall of the folding door plate and is close to the side of the torsional spring hinge arranged on the folding door plate.

[0018] Further, the material of the folding door support leg is aluminum alloy.

[0019] Further, the number of torsional spring hinges in each group is two, and the two torsional spring hinges in the same group are arranged along the length direction of the folding door plate and are respectively located at both ends of the same side of the folding door plate.

[0020] Further, the folding door plate comprises a hollow outer shell and a sandwich filled in the outer shell.

[0021] Further, the outer shell is made of carbon fiber material, and the sandwich is made of foam.

[0022] The beneficial effects of the present application are:

[0023] The composite material folding door mechanism for the launch port of a target drone's zero-length booster rocket provided by the present invention can realize the function of quickly and reliably closing the folding door after the zero-length booster rocket completes its work and cold separation during the launch phase. It can maintain the original aerodynamic shape of the target drone, reduce flight resistance and RCS indicators, further improve the overall indicators of the target drone, such as maximum maneuverability, maximum Mach number, and stealth performance, significantly enhance its flight stability, and reduce the flight accident rate. At the same time, the folding door's autonomous opening and closing function is achieved by relying on torsion spring hinges and quick-release locks. The structure of the present invention is small, simple, and reliable, which improves the space utilization of the compact target drone structure and increases the reusability of the folding door-related mechanisms. At the same time, it greatly improves the testing and installation efficiency of the zero-length booster rocket in the target drone cabin and reduces the cost of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of the folding door panel in an open state according to an embodiment of the present invention;

[0025] Figure 2 2 is a schematic structural diagram of a folding door panel in a closed state according to an embodiment of the present invention (the zero-length booster rocket is not shown);

[0026] Figure 3 This is a schematic diagram of the structure of a folding door panel, folding door legs, torsion spring hinges and a quick-release lock from a first perspective in an embodiment of the present invention;

[0027] Figure 4 2. It is a schematic structural diagram of the folding door panel, folding door legs, torsion spring hinge and quick release lock from a second perspective in an embodiment of the present invention;

[0028] Figure 5 yes Figure 4 AA section view;

[0029] Figure 6 yes Figure 4 BB cross-sectional view.

[0030] In the picture:

[0031] 01-rocket launch port, 02-zero-length booster rocket;

[0032] 1- folding door panel, 11- shell, 12- core; 2- folding door legs, 3- torsion spring hinge, 4- quick release lock, 5- quick release lock locking mechanism. DETAILED DESCRIPTION

[0033] To further clarify the objectives, advantages, and features of the present invention, the following, in conjunction with the accompanying drawings and specific embodiments, further describes in detail the folding door mechanism for a target drone zero-length booster rocket launch port. The advantages and features of the present invention will become more apparent through the following specific embodiments. It should be noted that the accompanying drawings are highly simplified and not to exact scale, serving only to facilitate and clearly illustrate the objectives of the embodiments of the present invention. Furthermore, the structures shown in the drawings are often portions of the actual structure.

[0034] See also Figure 1 The present embodiment provides a folding door mechanism for a zero-length booster rocket launch port of a target drone, which mainly includes a folding door panel 1, folding door legs 2, a torsion spring hinge 3, a quick-release lock 4 and a quick-release lock locking mechanism 5.

[0035] Among them, see Figure 2 The number of folding door panels 1 is two, and the two folding door panels 1 are along Figure 2 The upper and lower directions in the paper are relatively set at the rocket launch port 01, and when the two folding door panels 1 are in the closed state, they are adapted to the rocket launch port 01, and the length directions of the two folding door panels 1 are along Figure 2 The left and right orientation of the paper.

[0036] The folding door panel 1 is formed by paving a foam carbon fiber composite material in one piece. For details, see Figure 5 and Figure 6 The folding door panel 1 includes a hollow shell 11 that is adapted to the shape of the target drone at the rocket launch port 01, and a core 12 filled in the shell 11; the shell 11 is made of carbon fiber material, and the core 12 is made of foam.

[0037] The folding door panels 1 can be opened manually, and the two folding door panels 1 can be separated from each other and deployed in opposite directions to be used for installing cabin components such as the zero-length booster rocket 02. At the same time, during the zero-length booster launch of the target drone, after the zero-length booster rocket 02 completes its operation and is cold-separated from the target drone, the folding door panels 1 can be quickly and actively closed and moved toward each other to completely cover the rocket launch port 01, thereby maintaining the original aerodynamic shape of the target drone.

[0038] The folding door legs 2 are divided into two groups, each group includes at least one folding door leg 2, and the material of the folding door legs 2 is metal, specifically aluminum alloy.

[0039] In the embodiment, the number of the folding door legs 2 in each group is two, the two folding door legs 2 in the same group are of different lengths, the longer folding door leg 2 in the same group is installed on the inner side wall of the folding door plate 1 near the tail of the target machine, and is close to the side of the folding door plate 1 away from the torsion spring hinge 3, and the shorter folding door leg 2 in the same group is installed on the inner side wall of the folding door plate 1 near the nose of the target machine, and is close to the side of the folding door plate 1 where the torsion spring hinge 3 is arranged. The folding door leg 2 is integrally formed by pre-buried and then pasted with carbon fiber, and is arranged on the folding door plate 1. After the folding door plate 1 is unfolded in place, the folding door leg 2 can be supported on the shell of the zero-length boost rocket 02, maintain the spatial position of the folding door plate 1, and facilitate the related work of the zero-length boost rocket 02 and related components on the ground assembly and testing. At the same time, during the target machine zero-length boost launch process, after the zero-length boost rocket 02 works and is cold separated from the target machine, the folding door leg 2 can fall off with the zero-length boost rocket 02, slide on the surface of the shell of the zero-length boost rocket 02, ensure that the folding door plate 1 can be reliably and smoothly closed, and does not interfere with and collide with the zero-length boost rocket 02, and the success rate of the target machine zero-length boost launch process is improved.

[0040] The torsion spring hinge 3 is divided into two groups, and each group includes at least one torsion spring hinge 3. In the embodiment, two torsion spring hinges 3 are included in each group. One end of the two torsion spring hinges 3 in the same group is respectively arranged on the folding door plate 1 along the length of the folding door plate 1, and the other end is respectively arranged at the rocket launch port 01 of the target machine, so as to connect the folding door to the target machine, and repeatedly adjust the torsion spring torque through process test, so that the folding door plate 1 can be unfolded to form an angle greater than 90 degrees with the corresponding target machine skin surface, for the ground assembly and testing of the zero-length boost rocket 02. At the same time, when the folding door plate 1 is opened, the elastic deformation of the torsion spring can realize the function of active closing of the folding door plate 1.

[0041] The quick-release lock 4 in the embodiment adopts the Sosky M1-2A-handle pop-out door lock. The quick-release lock 4 is divided into two groups, and each group includes at least one quick-release lock 4. In the embodiment, the number of the quick-release lock 4 and the quick-release lock locking mechanism 5 in each group is two, and the two quick-release locks 4 in the same group are respectively arranged at the positions near the nose and the tail of the target machine on the folding door plate 1; the quick-release lock locking mechanism 5 is a corresponding mature product of the same series as the quick-release lock 4, and the two quick-release lock locking mechanisms 5 in the same group are respectively arranged at the positions near the nose and the tail of the target machine on the rocket launch port 01 of the target machine, and are respectively arranged corresponding to the two quick-release locks 4 in the same group.

[0042] Pressing the self-locking spring button of the quick-release lock 4 can control the opening and closing of the folding door plate 1, and realize the rapid assembly and test of the zero-length boost rocket 02 and its related components on the ground. Through the quick-release lock 4 and the quick-release lock locking mechanism 5, during the zero-length boost launch of the target machine, after the zero-length boost rocket 02 works and cold separates from the target machine, the folding door plate 1 can be quickly, actively and reliably closed and locked in place, greatly improving the operation efficiency and the success rate of closing the door.

Claims

1. A folding door mechanism for a zero-length booster rocket launch port of a target drone, characterized by: It comprises a folding door panel (1), a folding door leg (2), a torsion spring hinge (3), a quick-release lock (4) and a quick-release lock locking mechanism (5); The number of the folding door panels (1) is two, and they are arranged relative to each other at the rocket launching port (01) of the target drone. When the two folding door panels (1) are in a closed state, they are adapted to the rocket launching port (01). The folding door panels (1) are used to open the rocket launching port (01) when the zero-length booster rocket (02) is installed in the rocket launching port (01), and to shield the rocket launching port (01) after the zero-length booster rocket (02) is cold-separated from the target drone. The torsion spring hinges (3) are divided into two groups, each group including at least one torsion spring hinge (3); one end of the two groups of torsion spring hinges (3) are respectively mounted on the two folding door panels (1), and the other end are respectively mounted at the rocket launch port (01) of the target drone, for automatically closing the folding door panels (1) after the zero-length booster rocket (02) is cold-separated from the target drone; The quick-release locks (4) are divided into two groups, each group including at least one quick-release lock (4); the two groups of quick-release locks (4) are respectively installed on two folding door panels (1); The quick-release lock mechanism (5) is divided into two groups, each group including at least one quick-release lock mechanism (5); the two groups of quick-release lock mechanisms (5) are respectively installed at the rocket launch port (01) of the target drone, and are respectively arranged corresponding to the two groups of quick-release locks (4), and are used to lock the folding door panel (1) on the target drone when the folding door panel (1) is closed; The folding door legs (2) are divided into two groups, each group including at least one folding door leg (2); one end of the two groups of folding door legs (2) is respectively mounted on the inner side walls of the two folding door panels (1), and the other end is used to abut against the outer shell (11) of the zero-length booster rocket (02) when the zero-length booster rocket (02) is mounted at the rocket launch port (01); Each group of folding door legs (2) has two legs, and the two folding door legs (2) in the same group are of different lengths. The longer leg (2) in the same group is installed on the inner wall of the folding door panel (1) near the tail of the target drone and away from the side of the folding door panel (1) where the torsion spring hinge (3) is provided. The shorter leg (2) is installed on the inner wall of the folding door panel (1) near the head of the target drone and close to the side of the folding door panel (1) where the torsion spring hinge (3) is provided.

2. The folding door mechanism for a zero-length booster rocket launch port of a target drone according to claim 1, characterized in that: Each set of quick-release locks (4) and quick-release lock locking mechanisms (5) includes two; Two quick-release locks (4) of the same group are respectively installed at positions of the folding door panel (1) close to the nose and tail of the target drone; Two quick-release locking mechanisms (5) of the same group are respectively installed at the rocket launching port (01) of the target drone near the nose and tail.

3. A folding door mechanism for a zero-length booster rocket launch port of a target drone according to claim 1 or 2, characterized in that: The material of the folding door legs (2) is aluminum alloy.

4. The folding door mechanism for the launch port of a target drone with zero-length booster rocket according to claim 3, characterized in that: The number of the torsion spring hinges (3) in each group is two, and the two torsion spring hinges (3) in the same group are arranged along the length direction of the folding door panel (1) and are respectively located at the two ends of the same side of the folding door panel (1).

5. The folding door mechanism for the launch port of a target drone with zero-length booster rocket according to claim 4, characterized in that: The folding door panel (1) comprises a hollow outer shell (11) and a sandwich core (12) filled in the outer shell (11).

6. The folding door mechanism for the launch port of a target drone with zero-length booster rocket according to claim 5, characterized in that: The shell (11) is made of carbon fiber material, and the core (12) is made of foam.

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