A pulling device

Abstract

The invention relates to a traction disconnecting device which comprises a shell (1), a locking lever (5), a piston rod (2), a rocker arm (7), an unlocking lever (9) and a disconnecting cable (17). A movable tube is arranged in the shell (1), the piston rod (2) moves in the movable tube, a clamping groove is formed in the side wall of the piston rod (2), one end of the locking lever (5) is clamped in the clamping groove, and the other end of the locking lever (5) is used for being connected with a traction umbrella. A rotating shaft (6) of the locking lever (5) is clamped between a clamping opening of the shell (1) and a clamping opening in the upper end of the rocker arm (7), the rotating shaft (6) of the locking lever (5) drives the rocker arm (7) to rotate when moving, and the locking lever (5) is fixed on the shell (1) through a shear pin (4). According to the traction disconnecting device, a multi-level lever mechanism is used, the transmission force ratio is large, the structure is compact, the size is small, constrains can be released automatically and easily, airdrop equipment can be locked through anchoring force, and the breakdown rate is greatly lowered.

Description

technical field [0001] The present invention relates to airdrop equipment, and more specifically, relates to a towing and breaking away device. Background technique [0002] The traction release device is mainly used to lock the heavy airdrop equipment on the aircraft before airdrop. During the airdrop, the airdrop equipment will be pulled out of the aircraft under the action of traction and the equipment will be separated from the traction parachute after the equipment is out of the aircraft. [0003] At present, the known traction and detachment devices have complex structures and complicated maintenance. Airdrop armaments tend to slip back and forth during flight, and the traction and disengagement devices are prone to failure. During the flight, affected by the vibration of the aircraft, the airdrop equipment tends to slip forward and backward, and the locking function is unreliable; when the airdrop equipment is towed out of the aircraft, the traction airdrop equipment...

AI Technical Summary

Problems solved by technology

[0003] At present, the known traction and disengagement devices have complex structures and complicated maintenance

Airdrop armaments tend to slip back and forth during flight, and the traction and disengagement device is prone to failure

During the flight, affected by the vibration of the aircraft, the airdrop equipment tends to slip forward and backward, and the locking function is unreliable; when the airdrop equipment is towed out of the aircraft, the traction airdrop equipment receives too much tension from the towing cable, resulting in easy damage to the towing and detachment device. When the number of times of use is not full, the device fails, and the device and the parachute cannot be separated quickly and effectively.

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