Patent ID: 9010359
Filing Date: 2015-04-21
Classification: E03B,Y02A,Y10T

Abstract:
1. A safety protection device, comprises a control unit; a transmission unit; and a throttle unit; wherein the transmission unit comprises an elastic element, a transmission block, a coupling element, an outer gear, an inner gear, a first one-way gear engaging the outer gear, and a second one-way gear engaging the inner gear; an end of the elastic element is connected to the throttle unit and the other end is connected to the transmission block; the inner and outer gears are coaxially configured inside the throttle unit; the first one-way gear is configured inside the throttle unit and engages the second one-way gear through the coupling element; a valve is configured inside the throttle unit; the valve is connected to a base through a driving device; the valve is connected to the transmission unit; the control unit comprises an energy storage/release device configured on the throttle unit; a moveable block is configured inside the energy storage/release device; and the transmission unit, together with the block, controls the open and close of the valve.