Energy saving device rotating half circle and turning back with help of gravity

Abstract

An energy saving device rotating a half circle and turning back with the help of gravity is revealed. In the first half cycle of a circle movement, a transmission shaft of a motor rotor is controlled to rotate and further drive a first rotating shaft rotating in one direction by a first speed change gear mechanism. The transmission shaft synchronously drives the motor rotor to rotate a half circle, from a lowest position to a highest position on a circumference of the circle. In the other half cycle, the transmission shaft of the motor rotor stops rotating and the motor rotor returns from the highest position to the lowest position with the help of gravity. Thus the half circle rotation of the motor rotor is completed and the first rotating shaft is driven to rotate in one direction continuously so as to achieve energy saving effect.

What is claimed is: 
     
         1 . An energy saving device that rotates a half circle and turns back with the help of gravity comprising:
 a first rotating shaft for storage of energy and rotating in one direction;   a motor rotor disposed with a motor mechanism therein and having a switch control member for control of a transmission shaft thereof to rotate a half circle periodically;   a support arm that is connected between the motor rotor and the first rotating shaft so that the motor rotor performs a periodic half-circle rotation around the first rotating shaft; the first rotating shaft is a center of a circle and a radius of the circle is defined by the support arm;   a first speed change mechanism having a plurality of gears with different sizes, connected to and arranged between the transmission shaft of the motor rotor and the first rotating shaft; the first speed change mechanism having a start-end transmission gear connected to the transmission shaft of the motor rotor, and a finish-end transmission gear connected to and rotating synchronously with the first rotating shaft; by speed change function of the first speed change mechanism, the finish-end transmission gear drives the first rotating shaft to rotate at a low speed in one direction while the start-end transmission gear is driven by the transmission shaft of the motor rotor at high speed;   a second speed change mechanism having a plurality of gears with different sizes; the second speed change mechanism being connected to and disposed between the first rotating shaft and a second rotating shaft for output so as to make rotating first rotating shaft drive the second rotating shaft to rotate continuously; and   a support base that is used for supporting the first rotating shaft for storage of energy, the motor rotor, the support arm, the first speed change (transmission) gear, the second speed change (transmission) gear and the second rotating shaft for output;   wherein in the first half cycle of the periodical half-circle rotation, the motor rotor is switched to a power-on state by the switch control member so that the transmission shaft of the motor rotor starts rotating; with the help of the speed change function of the first speed change mechanism, the motor rotor drives the first rotating shaft to rotate in one direction at low speed by a driving force of the transmission shaft and the motor rotor is synchronously rotated a half circle, from a lowest position on a circumference of the circle to a highest position on the circumference of the circle; a half-circle rotation is completed and then the other half cycle starts;   wherein in the other half cycle, the motor rotor is switched to a power-off state by the switch control member so that the transmission shaft of the motor rotor stops rotating; by the speed change function of the first speed change mechanism, the motor rotor moves from the highest position on the circumference along the half circle of the first half cycle back to the lowest position on the circumference with the help of the gravity; then the first half cycle of the next circle starts.   
     
     
         2 . The device as claimed in  claim 1 , wherein the motor rotor drives the first rotating shaft to rotate in one direction with the help of gravity when the motor rotor moves from the highest position on the circumference along the half circle of the first half cycle back to the lowest position of the circumference. 
     
     
         3 . The device as claimed in  claim 1 , wherein the motor rotor is running idle in relative to the first rotating shaft when the motor rotor moves from the highest position on the circumference along the half circle of the first half cycle back to the lowest position of the circumference. 
     
     
         4 . The device as claimed in  claim 1 , wherein a speed ratio of the rotating shaft of the motor rotor to the first rotating shaft is 12:1. 
     
     
         5 . The device as claimed in  claim 1 , wherein the support base includes a bottom seat disposed on bottom thereof, a triangle rack arranged cross and over the bottom seat, and a frame set over the triangle rack. 
     
     
         6 . The device as claimed in  claim 1 , wherein a buffer part is disposed on the support base so that the motor rotor is against the buffer part while rotating to the highest position. 
     
     
         7 . The device as claimed in  claim 1 , wherein the switch control member is arranged near a center of the first rotating shaft for storage of energy; an upper sensing switch and a lower sensing switch are respectively disposed at an upper end and a lower end of the switch control member; the lower sensing switch is triggered by the motor rotor and switched to the power-on state when the motor rotor turns back to the lowest position; the upper sensing switch is triggered by the motor rotor and switched to the power-off state when the motor rotor is rotated to the highest position.