A flying toy includes a left sector gear, a left wing connector extending radially from the left sector gear, a right sector gear, a right wing connector extending radially from the right sector gear, a drive shaft, a crank piece mounted on the drive shaft to rotate therewith, a crank arm coupled between the crank piece and one of the left and right sector gears, two wing members connected respectively to the left and right wing connectors, and a drive unit configured to drive the drive shaft. The right sector gear is configured to mesh with the left sector gear so as to synchronize up-and-down movement of the left and right wing connectors to thereby result in a flapping motion of the two wing members.

A flying toy includes a left sector gear, a left wing connector extending radially from the left sector gear, a right sector gear, a right wing connector extending radially from the right sector gear, a drive shaft, a crank piece mounted on the drive shaft to rotate therewith, a crank arm coupled between the crank piece and one of the left and right sector gears, two wing members connected respectively to the left and right wing connectors, and a drive unit configured to drive the drive shaft. The right sector gear is configured to mesh with the left sector gear so as to synchronize up-and-down movement of the left and right wing connectors to thereby result in a flapping motion of the two wing members.

A flying toy includes a left sector gear, a left wing connector extending radially from the left sector gear, a right sector gear, a right wing connector extending radially from the right sector gear, a drive shaft, a crank piece mounted on the drive shaft to rotate therewith, a crank arm coupled between the crank piece and one of the left and right sector gears, two wing members connected respectively to the left and right wing connectors, and a drive unit configured to drive the drive shaft. The right sector gear is configured to mesh with the left sector gear so as to synchronize up-and-down movement of the left and right wing connectors to thereby result in a flapping motion of the two wing members.

Economical toy vehicles powered by stored elastic energy. In one embodiment, an economical toy vehicle includes: a vehicle body; an axle rotatably attached to the vehicle body; a gear integrally affixed to the axle such that rotation of the gear causes rotation of the axle; at least one slotted member integrally affixed to the axle, the slotted member including at least one slot; a hook-pinion assembly characterized by a hook integrally adjoined to a pinion; where the hook-pinion assembly is rotatably attached to the vehicle body; where the pinion is interlockingly engaged with the gear affixed to the axle; and a rubber band detachably attached to the vehicle body on a first end and detachably attached to the hook at a second end, such that the at least one slot can be used to rotate the axle, consequently resulting in the application of a torsional force to the rubber band.

Economical toy vehicles powered by stored elastic energy. In one embodiment, an economical toy vehicle includes: a vehicle body; an axle rotatably attached to the vehicle body; a gear integrally affixed to the axle such that rotation of the gear causes rotation of the axle; at least one slotted member integrally affixed to the axle, the slotted member including at least one slot; a hook-pinion assembly characterized by a hook integrally adjoined to a pinion; where the hook-pinion assembly is rotatably attached to the vehicle body; where the pinion is interlockingly engaged with the gear affixed to the axle; and a rubber band detachably attached to the vehicle body on a first end and detachably attached to the hook at a second end, such that the at least one slot can be used to rotate the axle, consequently resulting in the application of a torsional force to the rubber band.

A prompt drop device for a remote control model airplane comprises an airplane body (1) and a horizontal tail (3). A support (2) disposed on the airplane body (1) is used for supporting the front end of the horizontal tail (3). The front end (8) of the horizontal tail (3) is rotated under the binding of the support (2). A driving device is connected with the horizontal tail (3) and is used for lifting the rear end of the horizontal tail (3). A remote control model airplane comprising the prompt drop device is provided with the movable horizontal tail (3) and controls the angle of the horizontal tail (3) during landing, so that vertical descending is realized, and damage during landing is avoided.

A prompt drop device for a remote control model airplane comprises an airplane body (1) and a horizontal tail (3). A support (2) disposed on the airplane body (1) is used for supporting the front end of the horizontal tail (3). The front end (8) of the horizontal tail (3) is rotated under the binding of the support (2). A driving device is connected with the horizontal tail (3) and is used for lifting the rear end of the horizontal tail (3). A remote control model airplane comprising the prompt drop device is provided with the movable horizontal tail (3) and controls the angle of the horizontal tail (3) during landing, so that vertical descending is realized, and damage during landing is avoided.