A rotary-releasing device for a power supply having two rotary arms arranged on one side thereof, and each rotary arm being coupled with the power supply by an axle end. The rotary-releasing device having: a latch bracket section, and a handle section. The latch bracket section is a suspending arm with...http://www.google.fr/patents/US7258318?utm_source=gb-gplus-shareBrevet US7258318 - Rotary-releasing device for power supply