Aircraft water escape unit

Abstract

The application discloses a floating device for underwater experiment of an aircraft, which comprises a shell, a connecting plug arranged at the bottom of the shell and connected with a projectile body of a launcher, a core body installed in the shell, a top cover arranged at the top of the shell, a locking device arranged between the core body and the bottom of the shell, a spring release assembly connecting the core body and the shell, an electronic control system installed in the core body, an antenna arranged in the core body, and a communication quick plug arranged in the cavity of the core body. The shell bottom quick connector obtains the data in the projectile body, the shell is internally provided with the core body for obtaining the data in the projectile body through the communication quick connector and internal cable, and the core body realizes autonomous floating through the cooperation of the locking device and the spring release assembly. Only the core body needs to be salvaged, and the problems of difficult positioning and salvaging of the projectile body and difficult recovery of the projectile body data in the underwater experiment of the aircraft are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aircraft underwater experiment, in particular to a floating device for aircraft underwater experiment. BACKGROUND

[0002] With the wide demand of cross-medium aircraft in underwater reconnaissance, communication and military applications, a large number of cross-medium aircraft launch experiments are currently carried out. In the experiment, the projectile is shot into the water by the launch system, but due to the complex underwater environment, the projectile is difficult to locate, the positioning equipment is high in cost, and the projectile needs to be salvaged manually to obtain the sensor data inside the projectile, which is low in salvaging efficiency, and it takes a lot of manpower and material resources to recover the sensor data inside the projectile.

[0003] At present, there is no effective structure to realize the autonomous floating of the projectile for recovery, and the existing buoyancy driving technology mostly adopts single volume control type or weight control type, lacks efficient mixed type adjustment mechanism, and is difficult to realize stable and autonomous floating in deep sea or cross-medium environment.

[0004] Moreover, the existing buoyancy system is highly dependent on external power and lacks energy efficiency, such as large energy consumption when using propeller drive, which limits the execution ability of long-term tasks, and the existing system also lacks intelligent control and dynamic adjustment function, which is difficult to adapt to the changes of complex underwater environment, resulting in possible structural damage during floating process and affecting the integrity of recovered data.

[0005] Therefore, it is urgent to develop a floating device for underwater experiment which can realize autonomous floating, reduce recovery cost and adapt to cross-medium environment, quickly recover experimental data in the projectile of the launcher, and ensure the integrity of the recovered data. SUMMARY

[0006] The technical problem to be solved by the present application is to provide a floating device for aircraft underwater experiment, which can solve the problem of difficult recovery of data inside the projectile due to difficult positioning of the projectile after launch of the aircraft projectile.

[0007] To solve the above technical problems, the technical solutions adopted by the present application are as follows.

[0008] The application discloses a floating device for underwater experiment of an aircraft, which comprises a shell, a connecting plug arranged at the bottom of the shell and connected with a projectile body, a core body arranged in the shell and used for receiving internal data of the projectile body, a top cover arranged at the top of the shell and used for sealing the core body when the floating device is not floating, a locking device arranged between the core body and the bottom of the shell, a spring release assembly arranged between the core body and the shell and used for ejecting the core body out of the shell after the core body is released, an electronic control system arranged in the core body and comprising a pressure sensor, an accelerometer, a power module and a microprocessor, an antenna arranged in the core body and used for transmitting a positioning signal obtained by the microprocessor, a communication quick plug arranged in a cavity of the core body and used for obtaining internal data of the projectile body, an internal cable arranged between the communication quick plug and the connecting plug, and a communication connection between the communication quick plug and the microprocessor.

[0009] The locking device is composed of a strong magnet connected with the core body and the shell and a fuse resistor used for disconnecting a power supply circuit of the strong magnet.

[0010] The spring release assembly comprises uniformly distributed springs, one end of each spring is connected with an inner bottom end surface of the shell, and the other end of each spring is in contact with a bottom end surface of the core body.

[0011] The core body is provided with an inwardly recessed annular groove at the upper portion of the periphery, and a ring-shaped composite material buoyancy module is arranged in the annular groove.

[0012] The composite material buoyancy module is an annular buoyancy rod made of hollow glass microspheres and resin.

[0013] The core body is provided with a cavity, a partition plate is arranged at the lower portion of the cavity, a buoyancy chamber is arranged below the partition plate, a supporting plate used for adjusting the gravity center of the core body to ensure stable movement of the core body is arranged in the cavity above the partition plate, and the electronic control system is arranged on the supporting plate.

[0014] The adjusting assembly comprises a driving motor arranged on the supporting plate, a motor shaft of the driving motor is connected with a lead screw, and the lower portion of the lead screw penetrates through the partition plate and is threadedly connected with a nut seat on the partition plate.

[0015] The shell top is further provided with a pressurizing port for inflating the shell interior to ensure stability of the core in the shell.

[0016] The core top is further provided with a strong penetrating illuminating lamp.

[0017] The core top is further provided with a solar panel for supplying power to the power module.

[0018] Thanks to the above technical solutions, the present application has the following technical progress.

[0019] The present application provides a floating device for underwater experiment of aircraft, which obtains data inside the projectile body through the quick connector at the bottom of the shell, and the shell interior is provided with a core for obtaining data inside the projectile body through the communication quick connector and internal cable, and the core realizes autonomous floating through the cooperation of the locking device and spring release assembly, and it is only necessary to salvage the core without consuming a large amount of manpower and material resources to salvage the launcher projectile body itself; and the present application combines the electronic control system integrated with the pressure sensor, accelerometer and microprocessor to realize real-time sensing and intelligent control, and can efficiently and autonomously realize stable floating of the aircraft in a complex underwater environment; and the antenna can timely send a positioning signal to facilitate the salvage of the core, thereby solving the problems of difficult positioning and data recovery of the projectile body in the current underwater experiment of aircraft.

[0020] The present application realizes autonomous floating through the mixed type floating adjustment mechanism composed of the composite material floating module and the support plate capable of changing the position of the center of gravity, and can timely adjust according to the state of the core during the floating process, so as to ensure that the core always keeps the head upward during the floating process, avoid damage to the core, and ensure the integrity of the recovered data; the present application has simple structure and low cost, and the shell and the core are made of pressure-resistant composite material, which can adapt to the deep-sea high-pressure environment, and through the cooperation of the composite material floating module, adjustment assembly and spring release assembly, the energy utilization is optimized, and the dependence on external power is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Fig. 1 is a specific structural schematic diagram of the present application;

[0022] Fig. 2 is a specific structural schematic diagram of the present application installed on the launcher projectile body.

[0023] The components are: 1. Outer shell, 2. Core, 3. Partition, 4. Buoyancy chamber, 5. Support plate, 6. Drive motor, 7. Lead screw, 8. Lead screw seat, 9. Microprocessor, 10. Ring-shaped buoyancy bar, 11. Solar panel, 12. Pressurization port, 13. Antenna, 14. Communication quick connector, 15. Connecting plug, 16. Locking device, 17. Spring, 18. Launcher body. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] A buoyancy device for underwater experiments of aircraft, such as Figs. 1-2 As shown, the device includes an outer shell 1, with a connector 15 at the bottom of the outer shell 1 that connects to the launcher body 18. A core 2 is installed inside the outer shell 1, and a top cover is provided on the top of the outer shell 1. A sealing ring is provided between the top cover and the outer shell to ensure the airtightness of the entire device when the launcher body is launched. A locking device 16 is provided between the core 2 and the bottom of the outer shell 1 to limit the core 2 inside the outer shell 1 and to release the core 2 when it needs to float. The core 2 and the outer shell 1 are connected by a spring release assembly that ejects the core 2 from the outer shell 1 after it is released, thereby causing the launcher body 18 to float.

[0026] The spring release assembly includes uniformly distributed springs 17. One end of the spring 17 is connected to the bottom surface inside the outer shell 1, and the other end is connected to the bottom surface of the core 2. When the core 2 is inside the outer shell 1, the spring 17 is in a compressed state. At this time, the bottom surface of the core contacts the spring and compresses the spring. When the core is released, the elastic potential energy of the spring pushes the core out. At this time, the core gradually separates from the spring and floats to the surface of the water.

[0027] The core 2 has a cavity inside, and a partition 3 is provided at the bottom of the cavity. The cavity located below the partition 3 is the buoyancy chamber 4.

[0028] A support plate 5 is slidably installed in the cavity above the partition plate 3 to adjust the center of gravity of the aircraft body 18. By changing the up and down position of the support plate 5, the center of gravity of the core is adjusted to a neutral buoyancy state, so that the head of the core is always upward during the upward floating process, ensuring its stable operation.

[0029] An O-ring is provided between the support plate 5 and the inner wall of the cavity of the core to ensure that the support plate fits tightly against the inner wall of the cavity.

[0030] An electronic control system is installed on the support plate 5. The electronic control system includes a pressure sensor, an accelerometer, a power module and a microprocessor 9 set on the circuit board. It can monitor water pressure, depth and mission status in real time and accurately control the ascent process according to preset conditions.

[0031] The accelerometer is arranged near the central axis of the core 2, which is used to monitor the speed and acceleration changes during the floating process, and prevent the structure from impacting.

[0032] An adjusting assembly for adjusting the position of the supporting plate 5 is arranged between the supporting plate 5 and the partition plate 3, which comprises a driving motor 6 arranged on the supporting plate 5, a motor shaft of the driving motor 6 is connected with a lead screw 7, the lower part of the lead screw 7 penetrates through the partition plate 3 and is threadedly connected with a nut seat 8 on the partition plate 3, and the position of the supporting plate is adjusted by driving the lead screw to rotate through the driving motor.

[0033] A communication quick connector 14 is further arranged in the cavity of the core 2, which is connected with a connecting connector 15 through an internal cable, and is in communication connection with the microprocessor, which is used to collect the sensor data of the projectile body inside the core, so as to recycle the projectile data obtained by the core after the core floats up.

[0034] An antenna 13 is further arranged on the supporting plate 5, which penetrates through the top of the core 2, and the positioning signal obtained by the microprocessor can be transmitted through the antenna 13.

[0035] The antenna 13 is sealingly arranged between the top of the core 2, which is used to ensure the sealing of the core, and avoid water from entering to damage the electronic control system and the driving motor.

[0036] An inwardly recessed annular groove is arranged on the upper part of the periphery of the core 2, and a composite material buoyancy module is mounted in the annular groove, which is used to provide basic positive buoyancy, and ensure that the aircraft projectile has basic buoyancy margin in the initial state.

[0037] The composite material buoyancy module is an annular buoyancy rod 10 made of hollow glass microspheres combined with resin.

[0038] The locking device 16 is composed of a strong magnet and a fuse resistor, when the launcher projectile is normally running, the core 2 and the shell 1 are connected and locked by the strong magnet, when it is necessary to control the launcher projectile 18 to float up, the output current is increased to make the fuse resistor fuse, and the magnetism of the strong magnet disappears after being powered off, so that the locking is quickly released, and the spring 17 releases the stored elastic potential energy to push the core to open the top cover and start floating up.

[0039] A pressurizing port 12 is further arranged on the top of the shell 1 to inflate the inside of the shell 1, the inside of the shell 1 is inflated through the top pressurizing port 12, and the gas diffuses between the core 2 and the shell 1, which plays a role of embracing and stabilizing the core 2, so that the core is stably arranged in the shell, and ensures that the core can be stably released, on the other hand, after the gas pressure is increased by inflation, the high pressure gas between the shell and the core can also play a role of pushing the core to float up when the core 2 is released.

[0040] The connecting plug 15 is connected with the data port on the transmitter projectile body 18 through a cable, so as to obtain the data of the sensors inside the transmitter projectile body 18.

[0041] The top of the core body 2 is also provided with a powerful lighting lamp, so that the core body can be quickly fished after floating up.

[0042] The top of the core body 2 is also provided with a solar panel 11, so as to supply power to the power module, and avoid the influence of power depletion on fishing after the core body floats up.

[0043] The shell 1 and the core body 2 are respectively made of pressure-resistant composite materials, can withstand the deep-sea high-pressure environment, and guarantee the safety of the structure.

[0044] The controlled ends of the driving motor 6 and the locking device 16 are respectively connected with the output end of the microprocessor, and the output ends of the pressure sensor and the accelerometer are respectively connected with the input end of the microprocessor.

[0045] The working principle of the present application is as follows:

[0046] When the projectile body is initially launched, the shell is connected with the transmitter projectile body through the connecting plug, the core body is in the shell and is sealed through the top cover, and the core body will give the spring a certain compression force at the same time, at this time, the data in the projectile body will be transmitted to the communication quick connector through the connecting plug and the internal cable.

[0047] When it is needed to float up, the output current is increased, the fuse resistor is fused, and the power supply to the energized strong magnet is stopped, at this time, the magnetism of the energized strong magnet disappears, the spring releases the stored elastic potential energy, drives the core body to open the top cover and starts to float up.

[0048] With the floating of the core body, the cable between the communication quick connector and the connecting plug is disconnected under the action of the thrust, and the core body floats up with the obtained internal data of the transmitter projectile body.

[0049] During the floating process, the pressure sensor and the accelerometer work in real time, detect the environmental pressure received by the core body, and detect the changes of the speed and acceleration of the core body during the floating process, feed back the detection results to the microprocessor, and the microprocessor controls the adjusting assembly to adjust the gravity center of the core body according to the feedback results, so as to ensure that the core body is in a stable working state during the floating process.

[0050] When the antenna in the core body floats out of the water, a position signal is sent through the antenna, so as to quickly fish the core body, and the lighting lamp is arranged at the top of the core body, so as to search and fish the core body and the transmitter projectile body when the core body floats out of the water at night.

[0051] After fishing is completed, the internal sensor data of the transmitter projectile body can be read through the communication quick connector in the core body, without consuming a large amount of manpower and material resources to fish the transmitter projectile body.

[0052] The application provides a floating device for underwater experiment of aircraft, which obtains data inside a projectile through a quick connector at the bottom of a shell, and a core body is arranged inside the shell to obtain the data inside the projectile through a communication quick connector and an internal cable, the core body is automatically floated through cooperation of a locking device and a spring release assembly, and the core body is salvaged only, without salvaging the launcher projectile itself, which consumes a large amount of manpower and material resources; moreover, the application combines an electronic control system integrated with a pressure sensor, an accelerometer and a microprocessor to realize real-time sensing and intelligent control, can efficiently and autonomously realize stable floating of the aircraft in a complex underwater environment, and can send a positioning signal in time through an antenna to salvage the core body, thereby solving the problems of difficult positioning and data recovery of the projectile in the underwater experiment of the aircraft.

[0053] The application realizes autonomous floating through a hybrid type floating adjusting mechanism composed of a composite material floating module and a support plate capable of changing the position of the center of gravity, can adjust in time according to the state of the core body in the floating process, ensures that the core body always keeps the head upward in the floating process, avoids damage of the core body, and ensures the integrity of the recovered data; the application has simple structure and low cost, the shell and the core body are made of pressure-resistant composite materials, can adapt to the deep-sea high-pressure environment, and through cooperation of the composite material floating module, the adjusting assembly and the spring release assembly, energy utilization is optimized, and the dependence on external power is reduced.

Claims

1. A flotation device for use in underwater testing of an aircraft, characterized by: The application relates to a data receiving device for a projectile, which comprises a shell (1) provided with a connecting plug (15) at the bottom for connecting with a projectile body (18); a core (2) for receiving data in the projectile body is arranged in the shell (1); a top cover is arranged at the top of the shell (1) and used for sealing the core (2) when the device is not floated; a locking device (16) is arranged between the core (2) and the bottom of the shell (1); the core (2) and the shell (1) are connected through a spring release assembly which releases the core (2) and then ejects the core (2) out of the shell (1); an electronic control system is arranged in the core (2) and comprises a pressure sensor, an accelerometer, a power module and a microprocessor (9) arranged on a circuit board; an antenna (13) for transmitting positioning signals obtained by the microprocessor is arranged in the core (2); a communication quick plug (14) for obtaining data in the projectile body is arranged in the cavity of the core (2); the communication quick plug (14) and the connecting plug (15) are connected through an internal cable; the communication quick plug (14) is in communication connection with the microprocessor (9); the controlled end of the locking device (16) is connected with the output end of the microprocessor (9); the output ends of the pressure sensor and the accelerometer are connected with the input end of the microprocessor (9); An annular recess is arranged on the upper side of the core (2) and is inwardly recessed; and an annular composite material buoyancy module is arranged in the annular recess; The core (2) is provided with a cavity; a partition plate (3) is arranged at the lower part of the cavity; a buoyancy chamber (4) is arranged below the partition plate (3); a supporting plate (5) for adjusting the gravity center of the core (2) to ensure stable movement of the core (2) is arranged in the cavity above the partition plate (3); and the electronic control system is arranged on the supporting plate (5); The adjusting assembly comprises a driving motor (6) arranged on the supporting plate (5); a motor shaft of the driving motor (6) is connected with a screw rod (7); and the lower part of the screw rod (7) penetrates through the partition plate (3) and is in screw connection with a screw nut seat (8) on the partition plate (3).

2. A flotation device for use in underwater testing of aircraft according to claim 1, characterized in that: The locking device (16) is composed of a strong magnet connected with the core (2) and the shell (1) and a fuse resistor for disconnecting the power supply circuit of the strong magnet.

3. The flotation device for underwater testing of aircraft according to claim 1, wherein: The spring release assembly comprises uniformly distributed springs (17); one end of each spring (17) is connected with the inner bottom end face of the shell (1); and the other end of each spring (17) is in contact with the bottom end face of the core (2).

4. The flotation device for underwater testing of aircraft according to claim 1, wherein: The composite material buoyancy module is an annular buoyancy rod (10) made of hollow glass microspheres and resin.

5. The flotation device for underwater testing of aircraft components as defined in claim 1 wherein: The top of the shell (1) is further provided with a pressurizing port (12) for inflating the inner part of the shell (1) to ensure the stability of the core (2) in the shell (1).

6. The flotation device for underwater testing of aircraft components as defined in Claim 1 wherein: The top of the core (2) is further provided with a penetrating illuminating lamp.

7. The flotation device for underwater testing of aircraft components as defined in claim 1 wherein: The top of the core (2) is further provided with a solar panel (11) for supplying power to the power module.

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