A three-seat tandem explosive ejection system and a control method thereof

Abstract

The application provides a three-seat tandem explosive ejection system, and belongs to the technical field of aviation rescue equipment, which comprises an ejection seat, a hatch cutting device and an explosive command system; the ejection seat comprises first to third ejection seats, and the first ejection seat and the second ejection seat can transmit an ejection signal to the other ejection seat when any one of the ejection seats generates the ejection signal; the hatch cutting device comprises first, second, third hatch cutting devices and a pressure relief hatch cutting device, the first, second and third hatch cutting devices are used for cutting the structure on the top of the cockpit of the corresponding ejection seat to form an ejection hatch, and the pressure relief hatch cutting device is used for cutting the structure on the top of the cockpit to form a pressure relief hatch; the explosive command system comprises a door controller, a one-way transmission explosive joint and a time delay device to form a first ejection seat explosive command system, a second ejection seat explosive command system and a third ejection seat explosive command system.

Description

Technical Field

[0001] This invention belongs to the field of aviation rescue equipment technology, and specifically relates to a three-seat tandem detonation catapult system and its control method. Background Technology

[0002] An ejection seat uses a power unit under the seat to eject the pilot from the cockpit in the event of an aircraft crash, and then deploys a parachute to bring the pilot to a safe landing, thus saving the pilot's life.

[0003] For a three-seat tandem ejection seat, there are two ejection modes: one is the full ejection mode, where all seats are ejected when one ejection seat is activated; the other is the single ejection mode, where only that ejection seat is activated when one ejection seat is activated.

[0004] To achieve ejection rescue of pilots with three tandem ejection seats, a control system or method for three tandem ejection seats is needed. Summary of the Invention

[0005] The purpose of this invention is to provide a three-seat tandem detonation catapult system and its control method to solve or mitigate at least one of the problems in the prior art.

[0006] On one hand, the technical solution of the present invention is: a three-seat tandem detonation ejection system, the system comprising: ejection seats, a muzzle cutting device and a detonation command system;

[0007] The ejection seat includes a first ejection seat, a second ejection seat, and a third ejection seat. When either the first ejection seat or the second ejection seat generates an ejection signal, the signal can be transmitted to the other ejection seat.

[0008] The ejection seat cutter includes a first ejection seat cutter, a second ejection seat cutter, a third ejection seat cutter, and a pressure relief port cutter. The first ejection seat cutter, the second ejection seat cutter, and the third ejection seat cutter are used to cut the structure on the top of the ejection seat cockpit to form an ejection seat cover. The pressure relief port cutter is used to cut the structure on the top of the cockpit to form a pressure relief port cover.

[0009] The detonation command system comprises an AND gate controller, a one-way detonation connector, and a timer to form a first ejection seat detonation command system, a second ejection seat detonation command system, and a third ejection seat detonation command system.

[0010] Among them, the first ejection seat detonation command system is connected to the first cap cutting device and the output of the one-way detonation connector at the input end of the door controller, and is connected to the first ejection seat at the output end of the door controller and the input end of the one-way detonation connector. The output end of the one-way detonation connector is connected to the first cap cutting device and there are two delay devices between them.

[0011] For the second ejection seat detonation command system, the second hatch cutting device and the one-way detonation connector output are connected to the input end of the door controller, the second ejection seat is connected to the output end of the door controller and the input end of the one-way detonation connector, and the output end of the one-way detonation connector is connected to the second hatch cutting device and there is a timer between the two.

[0012] For the third ejection seat detonation command system, the third port cover cutting device and the one-way detonation connector output are connected to the input end of the door controller, the output end of the door controller and the input end of the one-way detonation connector are connected to the third ejection seat, the output end of the one-way detonation connector is connected to the third port cover cutting device and there is no time delay between the two, and the output end of the one-way detonation connector is connected to the pressure relief port cutting device.

[0013] Furthermore, the first ejection seat, the second ejection seat, and the third ejection seat are located in the aircraft cockpit and are used to eject the occupants from the cockpit in emergency situations.

[0014] Furthermore, the first ejection seat, the second ejection seat, and the third ejection seat have a timer inside for generating a delay t0.

[0015] Furthermore, the first cap cutting device, the second cap cutting device, and the third cap cutting device are equipped with a time delay device to generate a delay t1.

[0016] Furthermore, the delay unit includes a first delay unit and a second delay unit, wherein the first delay unit generates a delay t2 and the second delay unit generates a delay t3.

[0017] Furthermore, the detonation cord is connected to a timer, an AND gate controller, a one-way detonation connector, and a first, second, third, and pressure relief port cutting device.

[0018] Furthermore, the detonation cord transmits signals using the detonation wave as a medium.

[0019] On the other hand, the technical solution provided by the present invention is: a control method for a three-seat tandem detonation command system as described above, used to realize full ejection and single ejection of the ejection seat, the control method comprising:

[0020] 1) In full ejection mode, once the first or second ejection seat is activated, all three ejection seats will eject, i.e.:

[0021] When the first or second ejection seat is activated, an ejection activation signal is output and transmitted through a one-way detonation connector to the AND gate controller, the second delay device, the third port cover cutting device, and the depressurization port cutting device of the three ejection seats.

[0022] At this time, the pressure relief port cutting device works to cut the pressure relief port to relieve pressure;

[0023] The third ejection seat cutting device operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller of the third ejection seat detonation command system. The AND gate controller outputs a channel cleaning feedback signal to the third ejection seat after a logical AND judgment. The third ejection seat ejects after a delay of t0.

[0024] After the second delay timer finishes, the detonation signal is transmitted to the second cap cutting device and the first delay timer.

[0025] The second ejection seat cutting device operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller in the second ejection seat detonation command system. The AND gate controller outputs a channel cleaning feedback signal to the second ejection seat after a logical AND judgment. The second ejection seat ejects after a delay of t0.

[0026] After the first delay timer expires, the detonation signal is transmitted to the first ejection port cutting device. The first ejection port cutting device operates for a delay of t1, and after cutting to form the ejection port cover, it outputs the ejection port cover cutting feedback signal to the AND gate controller in the first ejection seat detonation command system. After logical AND judgment, the AND gate controller outputs the channel cleaning feedback signal to the first ejection seat. The first ejection seat ejects after a delay of t0.

[0027] 2) In single ejection mode, after the third ejection seat is activated, only the third ejection seat will eject independently, i.e.:

[0028] When the third ejection seat is activated, it outputs an ejection activation signal, which is transmitted through the one-way detonation connector in the third ejection seat detonation command system to the corresponding AND gate controller, the third port cover cutting device and the pressure relief port cutting device, and the one-way detonation connector between the third ejection seat and the detonation command system is cut off.

[0029] At this time, the pressure relief port cutting device works to cut the pressure relief port to relieve pressure;

[0030] The third ejection seat cutting device operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller in the third ejection seat detonation command system. The AND gate controller outputs a channel cleaning feedback signal to the third ejection seat after a logical AND judgment. The third ejection seat ejects after a delay of t0.

[0031] The three-seat tandem detonation command system and its control method of the present invention can realize ejection rescue in emergency ejection situations of aircraft, and have a simple structure, high reliability, and are easy to implement. Attached Figure Description

[0032] To more clearly illustrate the technical solution provided by the present invention, the accompanying drawings will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention.

[0033] Figure 1 This is a schematic diagram of the three-seat tandem detonation catapult system of the present invention.

[0034] Figure label:

[0035] 10-Ejection Seat

[0036] 11-First Ejection Seat

[0037] 12-Second Ejection Seat

[0038] 13-Third Ejection Seat

[0039] 20-Cap Cutting Device

[0040] 21-First cap cutting device

[0041] 22-Second cap cutting device

[0042] 23-Third cap cutting device

[0043] 24-Pressure relief port cutting device

[0044] 30-Detonation Command System

[0045] 31-AND gate controller

[0046] 32-One-way explosion transmission connector

[0047] 33-Delay Unit Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions in the embodiments of this invention will be described in more detail below with reference to the accompanying drawings.

[0049] like Figure 1 As shown, the three-seat tandem detonation ejection system provided by the present invention includes an ejection seat 10, a mouthpiece cutting device 20, and a detonation command system 30.

[0050] The ejection seat 10 includes a first ejection seat 11, a second ejection seat 12, and a third ejection seat 13. These three seats are located in the aircraft cockpit and are used to eject the occupant from the cockpit in an emergency. When any one ejection seat generates an ejection signal, it can be transmitted to the other. Furthermore, each of the first ejection seat 11, second ejection seat 12, and third ejection seat 13 is equipped with a controller to generate a delay t0.

[0051] The ejection hatch cutting device 20 is installed on the top of the cockpit and includes a first ejection hatch cutting device 21, a second ejection hatch cutting device 22, a third ejection hatch cutting device 23, and a pressure relief hatch cutting device 24. The first ejection hatch cutting device 21, the second ejection hatch cutting device 22, and the third ejection hatch cutting device 23 correspond to the first ejection seat 11, the second ejection seat 12, and the third ejection seat 13, respectively, and are used to cut the structure on the top of the cockpit of the corresponding ejection seat to form an ejection hatch. The pressure relief hatch cutting device 24 is used to cut the structure on the top of the cockpit to form a pressure relief hatch. After receiving the detonation signal, the first ejection hatch cutting device 21, the second ejection hatch cutting device 22, and the third ejection hatch cutting device 23 operate for a delay t1, and output an ejection hatch cutting feedback signal after completing the ejection hatch cutting and throwing. The delay t1 is controlled by a controller installed inside the first ejection hatch cutting device 21, the second ejection hatch cutting device 22, and the third ejection hatch cutting device 23.

[0052] The detonation command system 30 includes an AND gate controller 31, a one-way detonation connector 32, and a timer 33, forming a first ejection seat detonation command system, a second ejection seat detonation command system, and a third ejection seat detonation command system.

[0053] In the first ejection seat detonation command system, the input terminal of the AND gate controller 31 is connected to the first hatch cutting device 21 and the output terminal of the one-way detonation connector 32. The output terminal of the AND gate controller 31 and the input terminal of the one-way detonation connector 32 are connected to the first ejection seat 11. The output terminal of the one-way detonation connector 32 is connected to the first hatch cutting device 21, and there are two delay units 33 between them—namely, the first delay unit 33A and the second delay unit 33B. The first delay unit 33A delays for t2, and the second delay unit 33B delays for t3.

[0054] For the second ejection seat detonation command system, the input end of the gate controller 31 is connected to the second cap cutting device 22 and the output end of the one-way detonation connector 32. The output end of the gate controller 31 and the input end of the one-way detonation connector 32 are connected to the second ejection seat 12. The output end of the one-way detonation connector 32 is connected to the second cap cutting device 22 and there is a second delay device 33B between the two.

[0055] For the third ejection seat detonation command system, the input end of the gate controller 31 is connected to the third port cover cutting device 23 and the output end of the one-way detonation connector 32. The output end of the gate controller 31 and the input end of the one-way detonation connector 32 are connected to the third ejection seat 13. The output end of the one-way detonation connector 32 is connected to the third port cover cutting device 23 and there is no time delay between them. The output end of the one-way detonation connector 32 is connected to the pressure relief port cutting device 24.

[0056] In the multi-component connection described above in this invention, it can be achieved through a three-way connector and / or a four-way connector. The door controller 31 is installed on the lower beam of the slide rail of the corresponding ejection seat, and is used to receive the ejection start signal and the ejection port cover cutting feedback signal from the corresponding ejection seat, and after performing a logical AND judgment, output the corresponding channel cleaning feedback signal to the corresponding ejection seat.

[0057] In the above connection of the preferred embodiment of the present invention, the detonation detonating cord is connected to the timer 33, the AND gate controller 31, the one-way detonation connector 32, and the first to third opening cover cutting device and the pressure relief port cutting device 24. The detonation detonating cord transmits signals through the detonation wave as a medium.

[0058] In addition, the present invention also provides a control method for the above-mentioned three-tandem detonation catapult system, which can realize two working modes: full-projectile mode and single-projectile mode. The method includes the following steps:

[0059] 1) In full ejection mode, after the first ejection seat 11 or the second ejection seat 12 is activated, all three ejection seats will eject. The specific process is as follows:

[0060] When the first ejection seat 11 or the second ejection seat 12 is activated, an ejection activation signal is output and transmitted through the one-way detonation connector 32 to the AND gate controller 31, the second delay timer 33B, the third port cover cutting device 23 and the depressurization port cutting device 24 of the three ejection seats.

[0061] At this time, the pressure relief port cutting device 24 works to cut the pressure relief port to relieve pressure;

[0062] The third ejection seat cutting device 23 operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller 31 of the third ejection seat detonation command system. The AND gate controller 31 outputs a channel cleaning feedback signal to the third ejection seat 13 after a logical AND judgment. The third ejection seat 13 ejects after a delay of t0.

[0063] After the second delay timer 33B finishes its delay, the detonation signal is transmitted to the second cap cutting device 22 and the first delay timer 33A.

[0064] The second ejection seat cutting device 22 operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller 31 in the second ejection seat detonation command system. After logical AND judgment, the AND gate controller 31 outputs a channel cleaning feedback signal to the second ejection seat 12. The second ejection seat 12 ejects after a delay of t0.

[0065] After the first delay timer 33A finishes its delay, the detonation signal is transmitted to the first ejection port cutter 21. The first ejection port cutter 21 operates for a delay of t1, and after cutting to form the ejection port cover, it outputs an ejection port cover cutting feedback signal to the AND gate controller 31 in the first ejection seat detonation command system. After logical AND judgment, the AND gate controller 31 outputs a channel cleaning feedback signal to the first ejection seat 11. The first ejection seat 11 ejects after a delay of t0.

[0066] 2) In single ejection mode, after the third ejection seat 13 is activated, only the third ejection seat 13 ejects alone. The specific process is as follows:

[0067] When the third ejection seat 13 is activated, it outputs an ejection activation signal, which is transmitted through the one-way detonation connector 32 in the third ejection seat detonation command system to the corresponding AND gate controller 31, the third port cover cutting device 23 and the pressure relief port cutting device 24, and is simultaneously cut off by the one-way detonation connector 32 between the third ejection seat detonation command system and the third ejection seat detonation command system.

[0068] At this time, the pressure relief port cutting device 24 works to cut the pressure relief port to relieve pressure;

[0069] The third ejection seat cutting device 23 operates for a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller 31 in the third ejection seat detonation command system. The AND gate controller 31 outputs a channel cleaning feedback signal to the third ejection seat 13 after logical AND judgment. The third ejection seat 13 ejects after a delay of t0.

[0070] The three-seat tandem detonation command system and its control method provided by the present invention can realize the ejection of all seats by activating the first ejection seat 11 or the second ejection seat 12, and the ejection of only the third ejection seat 13 by activating the pneumatic third ejection seat 13.

[0071] The three-seat tandem detonation command system and its control method of the present invention can realize ejection rescue in emergency ejection situations of aircraft, and have a simple structure, high reliability, and are easy to implement.

[0072] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A three-seat tandem detonation catapult system, characterized in that, The system includes: an ejection seat, a muzzle cutting device, and a detonation command system; The ejection seat includes a first ejection seat, a second ejection seat, and a third ejection seat. When either the first ejection seat or the second ejection seat generates an ejection signal, the signal can be transmitted to the other ejection seat. The ejection seat cutter includes a first ejection seat cutter, a second ejection seat cutter, a third ejection seat cutter, and a pressure relief port cutter. The first ejection seat cutter, the second ejection seat cutter, and the third ejection seat cutter are used to cut the structure on the top of the ejection seat cockpit to form an ejection seat cover. The pressure relief port cutter is used to cut the structure on the top of the cockpit to form a pressure relief port cover. The detonation command system comprises an AND gate controller, a one-way detonation connector, and a timer to form a first ejection seat detonation command system, a second ejection seat detonation command system, and a third ejection seat detonation command system. Among them, the first ejection seat detonation command system is connected to the first cap cutting device and the output of the one-way detonation connector at the input end of the door controller, and is connected to the first ejection seat at the output end of the door controller and the input end of the one-way detonation connector. The output end of the one-way detonation connector is connected to the first cap cutting device and there is a first delay and a second delay between the two. For the second ejection seat detonation command system, it is connected to the second cap cutting device and the output of the one-way detonation connector at the input end of the door controller, and is connected to the second ejection seat at the output end of the door controller and the input end of the one-way detonation connector. The output end of the one-way detonation connector is connected to the second cap cutting device and there is a second delay between the two. For the third ejection seat detonation command system, the input end of the door controller is connected to the third port cover cutting device and the output end of the one-way detonation connector, the output end of the door controller and the input end of the one-way detonation connector are connected to the third ejection seat, the output end of the one-way detonation connector is connected to the third port cover cutting device and there is no time delay between the two, and the output end of the one-way detonation connector is connected to the pressure relief port cutting device.

2. The three-seat tandem detonation catapult system as described in claim 1, characterized in that, The first ejection seat, the second ejection seat, and the third ejection seat are located in the aircraft cockpit and are used to eject the occupants from the cockpit in emergency situations.

3. The three-unit tandem detonation catapult system as described in claim 2, characterized in that, The first ejection seat, the second ejection seat, and the third ejection seat have a timer inside for generating a delay t0.

4. The three-seat tandem detonation catapult system as described in claim 1, characterized in that, The first, second, and third cap cutting devices are equipped with time delay devices to generate a delay t1.

5. The three-seat tandem detonation catapult system as described in claim 1, characterized in that, The first delay device generates a delay t2, and the second delay device generates a delay t3.

6. The three-seat tandem detonation catapult system as described in claim 1, characterized in that, The system is connected to a detonation detonating cord, a timer, an AND gate controller, a one-way detonation connector, and a first, second, third, and pressure relief port cutting device.

7. The three-tandem detonation catapult system as described in claim 6, characterized in that, The detonation detonating cord transmits signals using the detonation wave as a medium.

8. A control method for a three-seat tandem detonation ejection system as described in any one of claims 1 to 7, used to achieve full ejection and single ejection of the ejection seat, characterized in that, The control method includes: 1) In full ejection mode, once the first or second ejection seat is activated, all three ejection seats will eject, i.e.: When the first or second ejection seat is activated, an ejection activation signal is output and transmitted through a one-way detonation connector to the AND gate controller, the second delay device, the third port cover cutting device, and the depressurization port cutting device of the three ejection seats. At this time, the pressure relief port cutting device works to cut the pressure relief port to relieve pressure; The third ejection seat cutting device operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller of the third ejection seat detonation command system. The AND gate controller outputs a channel cleaning feedback signal to the third ejection seat after a logical AND judgment. The third ejection seat ejects after a delay of t0. After the second delay timer finishes, the detonation signal is transmitted to the second cap cutting device and the first delay timer. The second ejection seat cutting device operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller in the second ejection seat detonation command system. The AND gate controller outputs a channel cleaning feedback signal to the second ejection seat after a logical AND judgment. The second ejection seat ejects after a delay of t0. After the first delay timer expires, the detonation signal is transmitted to the first ejection port cutting device. The first ejection port cutting device operates for a delay of t1, and after cutting to form the ejection port cover, it outputs the ejection port cover cutting feedback signal to the AND gate controller in the first ejection seat detonation command system. After logical AND judgment, the AND gate controller outputs the channel cleaning feedback signal to the first ejection seat. The first ejection seat ejects after a delay of t0. 2) In single ejection mode, after the third ejection seat is activated, only the third ejection seat will eject independently, i.e.: When the third ejection seat is activated, it outputs an ejection activation signal, which is transmitted through the one-way detonation connector in the third ejection seat detonation command system to the corresponding AND gate controller, the third port cover cutting device and the pressure relief port cutting device, and the one-way detonation connector between the third ejection seat and the detonation command system is cut off. At this time, the pressure relief port cutting device works to cut the pressure relief port to relieve pressure; The third ejection seat cutting device operates after a delay of t1. After cutting and throwing to form the ejection seat cover, it outputs an ejection seat cover cutting feedback signal to the AND gate controller in the third ejection seat detonation command system. The AND gate controller outputs a channel cleaning feedback signal to the third ejection seat after a logical AND judgment. The third ejection seat ejects after a delay of t0.

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