Large-stroke continuous triggering type take-up and pay-off device for automatic ejection

The invention discloses a large-stroke continuous triggering type take-up and pay-off device for automatic ejection. The large-stroke continuous triggering type take-up and pay-off device is mainly composed of a direct-current motor, a winding reel, a fixing shaft, a reset spring, a box body, an electromagnet rotating rod, a contact switch, a delay circuit control board and a connecting rope. The loading mechanism drives the winding reel to rotate through the motor, winds the connecting rope and compresses the energy storage element. The releasing mechanism starts the contact switch through the connecting rope with the knot buckle, the electromagnet rotating rod is rotated, the winding reel is separated from the motor, and the connecting rope is released. The device achieves self-resetting through a reset spring. Energy storage capacity can be controlled by changing the position of the knot buckle on the connecting rope, and the ejection period can be controlled by the time delay circuit. The device is small