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Drag parachute lock hook device

A technology of a locking hook device and a drag umbrella, which is applied in the field of aircraft, can solve problems such as errors and failure to improve the locking hook device of the drag umbrella, and achieve the effects of improving reliability and accurate false locks.

Pending Publication Date: 2017-08-25
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above-mentioned patent has improved the drag parachute cabin, it has not improved the hook device of the drag parachute, so there is still the possibility of making mistakes

Method used

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  • Drag parachute lock hook device
  • Drag parachute lock hook device
  • Drag parachute lock hook device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A drag parachute lock hook device includes a locking intake nozzle 1 and an unlocking intake nozzle 18, the locking intake nozzle 1 is connected with a compression spring 2, and the compression spring 2 is connected with a stop bushing 4, the A piston 5 is arranged beside the stop bushing 4, and a slider 9 is fixed on the piston 5, and the slider 9 is connected with a roller 10, and one end of the slider 9 is pushed against the roller 10 of the hook body 11, The hook body 11 includes two opposite claws, and each claw has a rotating shaft. The hook body 11 is also connected with a fork rocker arm group, and one end of the fork rocker arm group is connected with the unlocking air intake nozzle 18 , the other end is connected with a bumper mechanism 16, and the bumper mechanism 16 is connected with a bump 15, and the bump 15 is connected with the rocker arm installation shaft, and the rocker arm installation shaft is connected with the fork rocker group. The drag parachute...

Embodiment 2

[0029] The drag parachute hook device comprises a locking air intake nozzle 1 and an unlocking air intake nozzle 18, the locking air intake nozzle 1 is connected with a compression spring 2, and the compression spring 2 is connected with a stop bushing 4, and the stopper A piston 5 is arranged beside the bushing 4, a slider 9 is fixed on the piston 5, the slider 9 is connected with a roller 10, and one end of the slider 9 is pushed against the roller 10 of the hook body 11, and the hook body 11 includes two opposite claws, each claw has a rotating shaft, the hook body 11 is also connected with a fork rocker group, one end of the fork rocker group is connected with the unlocking air intake nozzle 18, and One end is connected with a bumper mechanism 16, and the bumper mechanism 16 is connected with a bump 15, and the bump 15 is connected with a rocker arm installation shaft, and the rocker arm installation shaft is connected with a fork rocker group.

[0030] A casing 8 is arran...

Embodiment 3

[0039] On the basis of Embodiment 1 or 2, the working principle of the drag parachute lock hook of the present invention: when the lock hook is in an open state, see figure 2 , the compression spring 2 is in a compressed state, the spring pushes the stop bush 4, the stop bush 4 pushes the piston 5 and the slider 9 fixed on it, and the slider 9 pushes against the roller 10 of the hook body, due to the compression Due to the effect of the spring, the piston rod always has a tendency to stretch out further. As soon as the roller on the hook body disengages from the slider, the slider will immediately move with the piston rod. When the umbrella is installed, when the ring is pushed into the claws of the hook mouth and collides with the hook body with the resistance umbrella, the two hook bodies 11 each rotate around their rotating shafts, and the claws of the lock hook hook body are closed, hooking the resistance umbrella ring, and at the same time, The roller on the hook body op...

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PUM

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Abstract

The invention relates to the field of aircrafts and particularly relates to a drag parachute lock hook device capable of ensuring the safety of an aircraft in the stages of takeoff, flight and landing. The drag parachute lock hook device comprises a locking inlet nozzle and an unlocking inlet nozzle, wherein the locking inlet nozzle is connected with a compression spring; the compression spring is connected with a stop bushing; a piston is arranged beside the stop bushing; a slide block is fixed on the piston; the slide block is connected with a roller, and one end of the slide block is butted to the roller of a hook body; the hook body comprises two shifting claws which are oppositely arranged, and each shifting claw is provided with a rotating shaft; the hook body is also connected with a shifting fork rocker arm group; one end of the shifting fork rocker arm group is connected with the unlocking inlet nozzle, and the other end of the shifting fork rocker arm group is connected with a roller latch mechanism; the roller latch mechanism is connected with a bulge; the bulge is connected with a rocker arm mounting shaft; and the rocker arm mounting shaft is connected with the shifting fork rocker arm group. The lock hook with an error prevention function avoids the harm of serious accidents caused by accidental parachute deployment, so that the system failure rate is greatly reduced, and the system reliability is greatly enhanced.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a drag parachute lock hook device for ensuring the safety of each stage of take-off, flight and landing of the aircraft. Background technique [0002] The drag parachute hook is the connecting device between the aircraft and the drag parachute, and the resistance of the drag parachute is transmitted to the body through the lock hook. According to the field information accumulated over the years and the situation we have mastered, the drag parachute has been released by mistake during the flight, the parachute rope was pulled off and the parachute flew off. Due to the negligence of the ground crew in a hurry, the door of the drag parachute was not locked firmly, and the vibration during the take-off and roll of the aircraft made the door open and the parachute was released, causing the aircraft to fail to pull, resulting in serious accidents (Strong 5, J-6, J-6) The 7 aircraft has had suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D17/80
CPCB64D17/80
Inventor 贺红何泳杜微郑华陈玉红孙炜
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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