Projection tray of projection lamp and LED projection lamp

Abstract

The projection tray of the projection lamp comprises a tray body and a tray gear, a gear containing groove is formed in the top face of the tray body, a receding notch is formed in the side wall of the gear containing groove, and after the tray gear is contained in the gear containing groove, the gear containing groove is located in the receding notch. An external driving gear is meshed with the tray gear at the position of the receding notch to drive the tray gear to rotate; the tray further comprises a limiting cover plate installed on the top face of the tray body, and after one end of the limiting cover plate stretches out towards the top face position of the tray gear, the bottom face of one end of the limiting cover plate is located on the top face position of the tray gear. By the adoption of the scheme, the limiting cover plate can abut against the top face of the tray gear, so that the tray gear can have related constraints in the vertical direction, and the influence caused by instability of up-and-down fluctuation generated when the tray gear rotates due to the behaviors such as tooth skipping easily generated in the rotating process of the tray gear is avoided.

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