A spring motor, comprising a housing, a stator core, a rotor core, a rotation shaft, a rotor coil, an insulated coil connection wire, a torsion spring, a connection shaft, a cylindrical spiral spring, a round funnel-shaped rubber sealing element, a battery and a spring fixing connection sleeve the rotor coil of the motor is connected to the terminal of a motor end cover after the insulated coil connection wire winds around the periphery of the rotation shaft continuously several times the connection shaft is fixed on the rotation shaft, and the cylindrical spiral spring is sleeved on the periphery of the opened end of the connection shaft the round funnel-shaped waterproof rubber sealing element is sleeved on the rotation shaft the battery is placed in a rectangular battery holder, three side frames of the battery holder are each a fixed structure, and one side frame of the battery holder is a moveable structure the spring fixing connection sleeve is sleeved on the rotation shaft, the rear end of the torsion spring is placed on one side of the spring fixing connection sleeve, and the spring fixing connection jacket, the torsion spring and the rotation shaft are fixed and connected with screws.
