Patent ID: 8418276

Claim:
A toilet flushing device comprising: an outer casing comprised of a first casing body and a second casing body, wherein the first casing body has a receiving space and a first axle hole penetrates the center of the first casing body thereof; the second casing body is disposed of a second axle hole at the inner surface thereof; a gear set comprising: a drive seat having a seat body and a first gear disposed at the bottom thereof, wherein at least one third convex rib is disposed at peripheral edge of the seat body, and a housing aperture penetrates through center of the seat body; a driven seat having a seat body, wherein a second gear disposed at the bottom of the seat body and a third axle hole that is polygonal is disposed at the center of the seat body; a third gear meshing with the second gear; a fourth gear meshing with the third gear; a fifth gear coaxially linking up with the fourth gear and meshing with the first gear of the drive seat; a ring disk set comprising a ring disk body, a spring and an arc-shaped pushing seat, wherein the ring disk body has a rounded hole at the center thereof and a plurality of supporting pieces are disposed along the periphery edge of the ring disk body; an arc-shaped chamber is provided at the top surface of the ring disk body, wherein a fixing column is convexly disposed at one side of the arc-shaped chamber and fits with one end of the spring; the arc-shaped pushing seat is disposed inside the arc-shaped chamber and pushed by the spring; a connecting rod set comprising: a connecting rod head comprising a connecting rod extends from periphery edge of a rounded main body, wherein the rounded main body comprises a fourth axle hole and a notch, and at least one first convex rib is disposed on the inner wall of the fourth axle hole; a stop seat, wherein a stop piece and at least one second convex rib are disposed along periphery edge thereof; a drive set comprising: a toilet flushing handle having a handle body, wherein a rod body extends from one side of the handle body and a first joining section, a second joining section and an external thread section is disposed on the rod body; a fixing axle cover having an axle hole penetrating the center thereof to allow insertion of the rod body, and peripheral edge of the fixing axle cover provides an external thread section; a cistern fixing nut screw locked to the external thread section of the fixing axle cover; and a fixing rotate screw having an inner thread hole to allow screw locking with the external thread section of the rod body.