Target drone zero-length booster rocket launching opening folding door mechanism

Abstract

The invention relates to a folding door, in particular to a target drone zero-length booster rocket launching opening folding door mechanism. The mechanism comprises a folding door plate, a torsional spring hinge, a quick-release lock and a quick-release lock locking mechanism, the number of the folding door plates is two, the folding door plates are oppositely arranged at the rocket launching port, and when the two folding door plates are in a closed state, the folding door plates are matched with the rocket launching port; the torsional spring hinges are divided into two groups; one ends of the two groups of torsion spring hinges are respectively mounted on the two folding doors, and the other ends are respectively mounted at rocket launching ports of the target drone; the quick-release locks are divided into two groups; the two groups of quick-release locks are respectively mounted on the two folding doors; the quick-release lock locking mechanisms are divided into two sets, and the two sets of quick-release lock locking mechanisms are installed at rocket launching ports of the target drone respectively and correspond to the two sets of quick-release locks respectively. According to the target drone zero-length booster rocket launching opening composite material folding door mechanism, the function that a folding door is rapidly and reliably closed after work of a zero-length booster rocket in the launching stage is completed and cold separation is conducted can be achieved.

Description

Technical Field

[0001] The invention relates to a folding door, in particular to a folding door mechanism for a zero-length booster rocket launching port of a target drone. Background Art

[0002] The existing target drones that use zero-length boost rockets to launch through zero-length boost usually need to be cold-separated from the target drone after the zero-length boost is completed. At the same time, an opening will be left on the outer shell of the target drone fuselage. This type of solution that does not deal with the rocket launch port on the fuselage will cause the target drone to have greater flight resistance and poorer stealth performance due to the failure to close the rocket launch port on the fuselage. Its maximum flight time, maximum maneuverability, maximum Mach number, and RCS indicators will inevitably be difficult to further improve. At the same time, some zero-length boost rockets have larger structural dimensions, and the fuselage opening left after the work is completed is too large, which will further affect the flight stability of the target drone. Therefore, it is usually used on low-speed, short-flight target drones.

[0003] Existing high-speed, long-flight target drones usually use gas-actuated folding doors to shield the rocket launch port after the zero-length booster rocket is cold-separated from the target drone. However, existing gas-actuated folding doors have complex structures and low reliability, making it difficult to meet actual needs. Summary of the invention

[0004] The purpose of the present invention is to solve the technical problems that the gas-actuated folding doors used in existing high-speed, long-flight target drones have complex structures, low reliability and are difficult to meet actual needs, and to provide a folding door mechanism for a zero-length booster rocket launch port of a target drone.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A folding door mechanism for a target drone zero-length booster rocket launch port, which is special in that:

[0007] It includes a folding door panel, a torsion spring hinge, a quick release lock and a quick release lock locking mechanism;

[0008] There are two folding door panels, which are arranged opposite to each other at the rocket launch port. When the two folding door panels are in a closed state, they are adapted to the rocket launch port. The folding door panels are used to open the rocket launch port when the zero-length booster rocket is installed at the rocket launch port, and to cover the rocket launch port after the zero-length booster rocket is cold-separated from the target drone.

[0009] The torsion spring hinges are divided into two groups, each group includes at least one torsion spring hinge; one end of the two groups of torsion spring hinges are respectively installed on the two folding doors, and the other end is respectively installed at the rocket launch port of the target drone, and is used to automatically close the folding door panels after the zero-length booster rocket is cold-separated from the target drone;

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

[0011] The quick-release lock locking mechanism is divided into two groups, each group includes at least one quick-release lock locking mechanism; the two groups of quick-release lock locking mechanisms are respectively installed at the rocket launching port of the target drone, and are respectively arranged corresponding to the two groups of quick-release locks, so as to lock the folding door panel on the target drone when the folding door panel is closed.

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

[0013] Two quick-release locks of the same group are installed on the folding door panels near the nose and tail of the target drone respectively;

[0014] The two quick-release locking mechanisms of the same group are respectively installed at the rocket launching port of the target drone near the nose and tail of the target drone.

[0015] Further, it also includes folding door legs;

[0016] The folding door legs are divided into two groups, each group includes at least one folding door leg; one end of the two groups of folding door legs are respectively installed on the inner walls of the two folding door panels, and the other end is used to abut against the outer shell of the zero-length booster rocket when the zero-length booster rocket is installed at the rocket launch port.

[0017] Furthermore, the number of folding door legs in each group is two, and the two folding doors in the same group are of different lengths. The longer folding door leg in the same group is installed on the inner wall of the folding door panel close to the tail of the target drone and away from the side of the folding door panel where the torsion spring hinge is set, and the shorter folding door leg is installed on the inner wall of the folding door panel close to the head of the target drone and close to the side of the folding door panel where the torsion spring hinge is set.

[0018] Furthermore, the material of the folding door legs is aluminum alloy.

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

[0020] Furthermore, the folding door panel includes a hollow outer shell and a sandwich core filled in the outer shell.

[0021] Furthermore, the shell is made of carbon fiber material, and the core is made of foam.

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

[0023] The composite material folding door mechanism of the launch port of the target drone zero-length booster rocket provided by the present invention can realize the function of the folding door closing quickly and reliably after the zero-length booster rocket is completed and cold separated during the launch phase. The original aerodynamic shape of the target drone can be maintained, the flight resistance and RCS index can be reduced, and the overall indexes such as the maximum maneuverability, maximum Mach number and stealth performance of the target drone can be further improved, and its flight stability can be significantly improved, and the flight accident rate can be reduced. At the same time, the folding door can be opened and closed autonomously by relying on torsion spring hinges and quick-release locks. The structure of the present invention is small in size, simple and reliable, which improves the space utilization rate of the compact target drone structure, increases the reusability of the folding door related mechanism, and greatly improves the test and installation efficiency of the zero-length booster rocket in the target drone cabin, and reduces the use cost. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0026] Figure 3 1 is a schematic diagram of the structure of a folding door panel, a folding door leg, a torsion spring hinge and a quick release lock from a first perspective in an embodiment of the present invention;

[0027] Figure 4 is a second perspective structural schematic diagram of a folding door panel, a folding door leg, a torsion spring hinge and a quick release lock 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 figure:

[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] In order to make the purpose, advantages and features of the present invention clearer, the following is a further detailed description of a target drone zero-length booster rocket launch port folding door mechanism proposed by the present invention in combination with the accompanying drawings and specific embodiments. According to the following specific implementation methods, the advantages and features of the present invention will be clearer. It should be noted that: the accompanying drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention; secondly, the structure shown in the accompanying drawings is often a part of the actual structure.

[0034] See also Figure 1 The present embodiment is a folding door mechanism for a zero-length booster rocket launch port of a target drone, which mainly includes 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, etc.

[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 arranged at the rocket launch port 01, and when the two folding door panels 1 are in a 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 direction 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 panel 1 can be opened manually, and the two folding door panels 1 are separated from each other and unfolded 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 has completed its work and is coldly separated from the target drone, the folding door panels 1 can be quickly and actively closed and moved towards 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 or the like.

[0039] In this embodiment, the number of each group of folding door legs 2 is two for illustration, and 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 wall of the folding door panel 1 near the tail of the target drone, and close to the side of the folding door panel 1 away from the torsion spring hinge 3, and the shorter folding door leg 2 is installed on the inner wall of the folding door panel 1 near the nose of the target drone, and close to the side of the folding door panel 1 where the torsion spring hinge 3 is set. The folding door legs 2 are arranged on the folding door panel 1 by pre-embedding and then laying carbon fiber in one piece. After the folding door panel 1 is unfolded, the folding door legs 2 can be supported on the shell of the zero-length booster rocket 02 to maintain the spatial position of the folding door panel 1, so as to facilitate the ground assembly and testing of the zero-length booster rocket 02 and related components. At the same time, during the zero-length booster launch of the target aircraft, after the zero-length booster rocket 02 completes its work and is cold-separated from the target aircraft, the folding door legs 2 can slide toward each other on the shell surface of the zero-length booster rocket 02 as the zero-length booster rocket 02 falls off, ensuring that the folding door panel 1 can be closed reliably and smoothly without interfering or colliding with the zero-length booster rocket 02, thereby improving the success rate of the zero-length booster launch process of the target aircraft.

[0040] The torsion spring hinges 3 are divided into two groups, each group includes at least one torsion spring hinge 3. In this embodiment, each group includes two torsion spring hinges 3 for specific description. One end of the two torsion spring hinges 3 in the same group is respectively installed on the folding door panel 1 along the length of the folding door panel 1, and the other end is respectively installed at the rocket launch port 01 of the target drone, so that the folding door is connected to the target drone, and the torsion spring torque is repeatedly adjusted by performing process tests, so that the folding door panel 1 can be unfolded to form an angle greater than 90 degrees with the corresponding target drone skin surface, which is used for the ground assembly test of the zero-length booster rocket 02. At the same time, when the folding door panel 1 is opened, due to the elastic deformation of the torsion spring, the function of actively closing the folding door panel 1 can be realized.

[0041] The quick release lock 4 in this embodiment adopts the Southco M1-2A-handle pop-up door lock. The quick release lock 4 is divided into two groups, each group includes at least one quick release lock 4. In this embodiment, the number of quick release locks 4 and quick release lock locking mechanisms 5 in each group is two for illustration, and the two quick release locks 4 in the same group are respectively installed at the folding door panel 1 near the nose and tail of the target drone; the quick release lock locking mechanism 5 is a corresponding mature product of the same series of the quick release lock 4, and the two quick release lock locking mechanisms 5 in the same group are respectively installed at the rocket launch port 01 of the target drone near the nose and tail of the target drone, and are respectively set corresponding to the two quick release locks 4 in the same group.

[0042] By pressing the self-locking spring button of the quick release lock 4, the opening and closing of the folding door panel 1 can be controlled, so as to realize the rapid assembly and testing of the zero-length booster 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 booster launch of the target drone, after the zero-length booster rocket 02 has completed its work and has been cold-separated from the target drone, the folding door panel 1 can be quickly, actively and reliably closed and locked in place, greatly improving the operating efficiency and the success rate of closing the door.

Claims

1. A folding door mechanism for a target drone zero-length booster rocket launch port, characterized in that: It comprises a folding door panel (1), 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, which are arranged at the rocket launching port (01) of the target drone relative to each other. 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 cover 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 comprising at least one torsion spring hinge (3); one end of the two groups of torsion spring hinges (3) are respectively mounted on two folding door panels (1), and the other ends are respectively mounted at the rocket launch port (01) of the target drone, so as to automatically close 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 comprising 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 comprising 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.

2. A folding door mechanism for a target drone zero-length booster rocket launch port according to claim 1, characterized in that: The number of each set of quick-release locks (4) and quick-release lock locking mechanisms (5) is 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 at positions close to the nose and tail of the drone.

3. A folding door mechanism for a target drone zero-length booster rocket launch port according to claim 1 or 2, characterized in that: Also included are folding door legs (2); The folding door legs (2) are divided into two groups, each group comprising at least one folding door leg (2); one end of the two groups of folding door legs (2) are 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).

4. A folding door mechanism for a target drone zero-length booster rocket launch port according to claim 3, characterized in that: The number of the folding door legs (2) in each group is two, and 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 wall of the folding door panel (1) close to 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, and the shorter folding door leg (2) is installed on the inner wall of the folding door panel (1) close to 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.

5. A folding door mechanism for a target drone zero-length booster rocket launch port according to claim 4, characterized in that: The material of the folding door supporting legs (2) is aluminum alloy.

6. A folding door mechanism for a target drone zero-length booster rocket launch port according to claim 5, characterized in that: The number of 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).

7. A folding door mechanism for a target drone zero-length booster rocket launch port according to claim 6, 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).

8. The folding door mechanism for the launch port of a target drone zero-length booster rocket according to claim 7, characterized in that: The outer shell (11) is made of carbon fiber material, and the core (12) is made of foam.

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