The invention discloses a multi-stage retractile pneumatic hydraulic ejection device. The output end of a high-pressure air source is connected with an air source input end of a pneumatic valve; a control signal output end of a control is connected with an electric input end of the pneumatic valve; two gas output ports of the pneumatic valve are separately connected with an air inlet of a bidirectional gas-liquid mixing multi-stage cylinder and an air port of the bidirectional gas-liquid mixing multi-stage cylinder; a load is arranged on a bracket; the bracket is fixedly connected with the end surface of an ejection extending rod of the bidirectional gas-liquid mixing multi-stage cylinder; and one end of a pre-tightening device is fixed, and the other end is connected with the bracket, so that a pre-tightening force in the direction opposite to the extending direction of the ejection extending rod is provided. According to the multi-stage retractile pneumatic hydraulic ejection device, the ejection efficiency is high; an ejection mechanism can be retracted automatically after ejection; and meanwhile, superspeed ejection can be realized by utilizing the multi-stage cylinder and the pre-tightening device.
Multi-stage retractile pneumatic hydraulic ejection device
2016-01-13
Patent
Electronic Resource
English
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
Modern trend -- Retractile undercarriages
Engineering Index Backfile | 1935
European Patent Office | 2020
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