Semitrailer safety protection device

The invention relates to the technical field of semitrailers, in particular to a semitrailer safety protection device which comprises a frame and further comprises at least two suspensions, an axle, a pressure sensor, two sets of supporting parts and a controller, and the frame is arranged on the ax...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SUN XIYOU, LI LE, LI ZIJUN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS MOTOR VEHICLES PERFORMING OPERATIONS SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, ORMANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR TRAILERS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to the technical field of semitrailers, in particular to a semitrailer safety protection device which comprises a frame and further comprises at least two suspensions, an axle, a pressure sensor, two sets of supporting parts and a controller, and the frame is arranged on the axle through the suspensions; the pressure sensor is arranged between the suspension and the frame; the two sets of supporting parts are arranged on the two sides of the vehicle frame correspondingly, each supporting part comprises a first hydraulic cylinder hinged to the vehicle frame, a supporting plate is hinged to the telescopic end of each first hydraulic cylinder, a rolling ball is arranged at the bottom of each supporting plate, a second hydraulic cylinder is arranged on the side face of each first hydraulic cylinder, and the second hydraulic cylinders are hinged to the telescopic ends of the first hydraulic cylinders. A sliding plate is hinged to a telescopic shaft of the second hydraulic cylinder and connect