Portable support frame for digital projector

Abstract

The invention relates to a portable support frame for a digital projector. The portable support frame comprises a support block and a support device; the support block is provided with a clamping device; a sliding groove is formed in the upper end face of the support block; a containing groove is formed in the bottom of the sliding groove; movable grooves are formed in the upper end face of the support block; the multiple movable grooves are formed in the circumferential direction of the sliding groove at intervals; the clamping device comprises a driving block arranged in the sliding groove in a sliding mode, clamping parts arranged in the movable grooves in a rotating mode and a fixing assembly arranged on the support block; a limiting groove is formed in one side of the driving block; the clamping part comprises pin shafts fixed in the movable grooves, first rods rotationally arranged on the pin shafts and second rods vertically fixing the sides, away from the driving block, of thefirst rods; the ends, away from the second rods, of the first rods are movably arranged in the limiting groove; the upper ends of the second rods are attached to the outer side wall of the projector;a reset spring is arranged in the containing groove; and the two ends of the reset spring are fixed to the lower end face of the driving block and the bottom of the containing groove correspondingly.The portable support frame has the effect of being capable of improving the installation stability of the projector.

Description

technical field [0001] The application relates to the field of projector supporting frames, in particular to a portable supporting frame for digital projectors. Background technique [0002] The digital projector bracket is a mechanical device used to support the digital projector so that the digital projector can restore the effects and sounds recorded on the film with the screen and the amplifier. [0003] The existing Chinese utility model patent with the notification number CN201716513U discloses a miniature movie projector, which includes a projection host, an upper film box, a lower film box and a support. 100mm, 30-100mm high, above the projection main body, an upper film cassette is set through the upper socket, and on the right side of the projection main body, a lower film cassette is set through the lower socket. Both the upper film cassette and the lower film cassette are round. The diameter is 30-150 mm, and the thickness is 5-50 mm; a projection window is set ...

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, the inventor thinks that the projector is only fixed on the bracket with bolts at the bottom of the projector, and the installation of the projector is unstable.

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