Yo-yo ball with friction motion energy storage and acceleration functions

Abstract

The present invention discloses a yo-yo ball with friction motion energy storage and acceleration functions, comprising two rotating bodies and a connecting shaft, where either of the rotating bodies includes a disk body and a side cover, either of the disk bodies is internally provided with a friction motion energy storage mechanism, one end of which is connected to the disk body and the other end is connected to the side cover, by pinching the side cover, the disk bodies are in contact with an external contact surface to realize energy storage for the friction motion energy storage mechanism by means of friction rolling. After the energy storage, the disk bodies are out of contact with the external contact surface, and the friction motion energy storage mechanism releases the energy to drive the disk bodies to synchronously rotate.

1 . A yo-yo ball with friction motion energy storage and acceleration functions, comprising two rotating bodies and a connecting shaft connecting the two rotating bodies, characterized in that either of the rotating bodies comprises a disk body and a side cover, the disk body can rotate relatively to the side cover, either of the disk bodies is internally provided with a friction motion energy storage mechanism, one end of the friction motion energy storage mechanism is connected to the disk body and the other end is connected to the side cover, by pinching the side cover of the two rotating bodies, the disk bodies are in contact with an external contact surface to realize energy storage for the friction motion energy storage mechanism by means of friction rolling; after the energy storage, the disk bodies are out of contact with the external contact surface, and the friction motion energy storage mechanism releases the energy to drive the two disk bodies to synchronously rotate towards a direction opposite to a rolling direction. 
     
     
         2 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 1 , characterized in that: either of the disk bodies is internally provided with a direction-limiting mechanism disposed in a position where the side cover is connected to the friction motion energy storage mechanism, one end of the direction-limiting mechanism is connected to the side cover, the other end is connected to the friction motion energy storage mechanism, a rotational direction limited by the direction-limiting mechanism is the same as an energy storage direction of the friction motion energy storage mechanism, by pinching the side cover of the two rotating bodies, the disk bodies are in contact with an external contact surface to realize energy storage for the friction motion energy storage mechanism by means of friction rolling towards the rotational direction limited by the direction-limiting mechanism. 
     
     
         3 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 1 , characterized in that: either of the disk bodies is internally provided with an overload protection mechanism disposed in a position where the side cover is connected to the friction motion energy storage mechanism, one end of the overload protection mechanism is connected to the side cover, the other end is connected to the friction motion energy storage mechanism; in case of overloaded energy storage for the friction motion energy storage mechanism by pinching the side cover, under the action of the overload protection mechanism, the side cover is disconnected from the friction motion energy storage mechanism, thereby realizing to stop energy storage for the friction motion energy storage mechanism. 
     
     
         4 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 1 , characterized in that: either of the disk bodies is internally provided with a direction-limiting mechanism and an overload protection mechanism which are disposed in a position where the side cover is connected to the friction motion energy storage mechanism, one end of the direction-limiting mechanism is connected to the friction motion energy storage mechanism, the other end is connected to one end of the overload protection mechanism, the other end of the overload protection mechanism is connected to the side cover, a rotational direction limited by the direction-limiting mechanism is the same as an energy storage direction of the friction motion energy storage mechanism, by pinching the side cover of the two rotating bodies, the disk bodies are in contact with an external contact surface to realize energy storage for the friction motion energy storage mechanism by means of friction rolling towards the rotational direction limited by the direction-limiting mechanism; in case of overloaded energy storage for the friction motion energy storage mechanism, under the action of the overload protection mechanism, the side cover is disconnected from the direction-limiting mechanism, thereby realizing to stop energy storage for the friction motion energy storage mechanism. 
     
     
         5 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 4 , characterized in that: the direction-limiting mechanism comprises a plurality of direction-limiting blocks, a mounting disk in which all the direction-limiting blocks are mounted, and a gear disk which is concavely provided with internal helical gear teeth, the direction-limiting blocks can be automatically rotatably connected, by means of pin bolts, to a bottom surface of the mounting disk and protrude above the mounting disk; the gear disk is covered on the direction-limiting blocks, in this way, it is implemented that limiting claws of the direction-limiting blocks are unidirectionally clamped in the internal helical gear teeth to limit the gear disk to unidirectionally rotate; one end of the friction motion energy storage mechanism is connected to the gear disk, and the overload protection mechanism is connected to the mounting disk. 
     
     
         6 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 5 , characterized in that: the overload protection mechanism comprises a circular ring whose arc surface is convexly provided with convex teeth, and an internal gear ring engaged with the convex teeth, the internal gear ring is disposed on the top surface of the mounting disk, a middle of the circular ring is provided with a long convex key, the side cover is correspondingly provided with a long key-groove matched up and connected with the long convex key, in case of overloaded energy storage for the friction motion energy storage mechanism, the circular ring is stressed and deformed so that the convex teeth are disengaged with the internal gear ring, thereby implementing that the direction-limiting mechanism and the friction motion energy storage mechanism rotate with the disk bodies, and the friction motion energy storage mechanism stops energy storage. 
     
     
         7 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 2 , characterized in that: the friction motion energy storage mechanism comprises an energy storage spring and a spring case, the energy storage spring is placed in the spring case, an outside end of the energy storage spring is clamped and connected with the spring case, an inside end of the energy storage spring is clamped and connected with the direction-limiting mechanism, an energy storage rotation direction of the energy storage spring is the same as a rotational direction limited by the direction-limiting mechanism, and the spring case is fixedly connected to the disk bodies. 
     
     
         8 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 7 , characterized in that: a through hole is formed in the middle of the spring case, at a lower part of the gear disk there is correspondingly provided with a lug that passes through the through hole and enters into the spring case, along a periphery of the lug there is provided with a plurality of arc-shaped pieces distributed at interval, with a gap kept between the arc-shaped piece and the lug, at a lower end of the arc-shaped piece there is provided with a hook; after the lug of the gear disk is inserted into the through hole of the spring case, the hook stretches out of the through hole to fasten to a side the through hole, in this way it is realized that the gear disk is connected to the spring case, and the inside end of the energy storage spring is clamped and connected to the arc-shaped pieces of the gear disk. 
     
     
         9 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 8 , characterized in that: a middle of the gear disk is provided with a bearing pedestal on which a bearing is mounted, and the connecting shaft is inserted and connected to a middle hole of the bearing. 
     
     
         10 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 1 , characterized in that: a disk mouth edge of the disk bodies is connected with a friction ring which is locked and connected to the disk bodies by means of screws, a diameter of the friction ring is greater than a disk mouth diameter of the disk bodies, the side cover is covered on an outer side surface of the friction ring, and the side cover is connected to the connecting shaft by means of bolts. 
     
     
         11 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 4 , characterized in that: the friction motion energy storage mechanism comprises an energy storage spring and a spring case, the energy storage spring is placed in the spring case, an outside end of the energy storage spring is clamped and connected with the spring case, an inside end of the energy storage spring is clamped and connected with the direction-limiting mechanism, an energy storage rotation direction of the energy storage spring is the same as a rotational direction limited by the direction-limiting mechanism, and the spring case is fixedly connected to the disk bodies. 
     
     
         12 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 11 , characterized in that: a through hole is formed in the middle of the spring case, at a lower part of the gear disk there is correspondingly provided with a lug that passes through the through hole and enters into the spring case, along a periphery of the lug there is provided with a plurality of arc-shaped pieces distributed at interval, with a gap kept between the arc-shaped piece and the lug, at a lower end of the arc-shaped piece there is provided with a hook; after the lug of the gear disk is inserted into the through hole of the spring case, the hook stretches out of the through hole to fasten to a side the through hole, in this way it is realized that the gear disk is connected to the spring case, and the inside end of the energy storage spring is clamped and connected to the arc-shaped pieces of the gear disk. 
     
     
         13 . The yo-yo ball with friction motion energy storage and acceleration functions according to  claim 12 , characterized in that: a middle of the gear disk is provided with a bearing pedestal on which a bearing is mounted, and the connecting shaft is inserted and connected to a middle hole of the bearing.