A cad simulation teaching demonstration projection device

Abstract

The invention discloses a projection device for cad simulation teaching demonstration, which includes a control indicator light, a rough connection pad, and a thread height gauge composed of a thread adjustment column, a rough rotation block and an anti-slip rubber pad, which has a good height adjustment function. When adjusting, adjust the height of the column by lifting and rotating the screw thread, so that the projection lens can find a suitable projection height. It is very convenient to replace the fixed connecting foot composed of plugging short block, support connecting column and friction rubber block. The fixed connecting leg is inserted on the projection lower housing through the plugging short block, so that through the fixing of plugging, It makes the connection easier and easier to replace. The rough connection pad composed of the rough connection surface, the middle connection block and the adhesive fixing block has a good anti-slip effect. When holding the side with one hand, the roughness of the rough connection surface reduces slipping and falling Corruption problem.

Description

Technical field [0001] The present invention relates to a projector in the relevant art, in particular to a projection apparatus cad simulation teaching demonstrations. Background technique [0002] The projector using an optical element is a profile of the workpiece enlarged and projected on the optical apparatus to which the video screen. It can be used as a contour measurement of the transmitted light, reflected light can also be measured surface shape of the blind hole and the part of surface observation. Projector, also known as the projector, a video or image may be projected onto the screen apparatus, can be connected to play the corresponding video signals through different interfaces with the computer, VCD, DVD, BD, a game machine, DV like phase, so we can do some teaching demonstration. [0003] The following problems of the prior art teaching presentation projection apparatus on the market: 1, conventional teaching demonstration projection apparatus is placed on a rugg...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a cad simulation teaching demonstration projection device to solve the problem that when the existing teaching demonstration projection device proposed in the above background technology is placed on an uneven object, the angle and height of the lens cannot be adjusted well. It has a very good anti-skid effect, so it is not very convenient when performing teaching demonstration projection, and the feet of the existing teaching demonstration projection equipment cannot be easily replaced, and when placed on a flat object, it does not have good anti-skid In this way, it is not very convenient to place and replace, and when the existing teaching and demonstration projection equipment is held and taken with one hand, because the surface of the shell is smooth, it is easy to drop when taking it, and there is no problem. Good hand hold anti-slip device, thus easy to take the problem

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