Patent ID: 8251645

Claim:
A fan with concealed oscillating mechanism, comprising: a main housing being provided at an end with an axially extended through-hole and at an inner bottom with a radially inward extended receiving tube and at an inner top with a radially inward extended holding tube; a first driving motor being located inside the main housing and having a first rotating shaft forward extended through the through-hole to an outer side of the main housing; the first driving motor being provided at a position corresponding to the receiving tube and the holding tube on the main housing with a connecting rod and a holding rod, enabling the fan to oscillate at increased stability, and the connecting rod being rotatably fitted in the receiving tube to allow the first driving motor to reciprocatingly oscillate about the connecting rod relative to the receiving tube and the main housing; a second driving motor being located inside the main housing behind and connected to the first driving motor, and having a second rotating shaft extended in a direction perpendicular to that of the first rotating shaft; a curved link gear being connected at a first end to the second rotating shaft of the second driving motor and at a second end to the inner bottom of the main housing; and a set of blades being located at an outer side of the main housing and connected to the first rotating shaft of the first driving motor.