Multimedia teaching projection screen

A multimedia teaching and main body technology, applied in the field of teaching equipment, can solve problems such as troublesome angle adjustment of projection screens, lack of protective devices, and vulnerability to damage, etc., and achieve good teaching effects
CN114464019AInactive Publication Date: 2022-05-10杨玲
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
杨玲
Publication Date
2022-05-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a multimedia teaching projection screen, and relates to the technical field of teaching aids. The bottom of the lifting mechanism is rotationally inserted into a sliding groove formed in the supporting base. The surface of the bottom fastening connecting device is rotationally connected with the supporting base. The top of the inner side of the sliding protection device is fixedly connected with the lifting mechanism. One end of the projection screen angle control device is connected with the support frame main body device; the problems that the ground fixing effect is relatively poor, the projection screen lacks a protection device, and angle adjustment of the projection screen is troublesome are solved. The sliding protection device arranged in the device can play a good role in protecting the projection screen, and the sliding protection device can be used as a blackboard for auxiliary teaching; the bottom fastening and connecting device is arranged, so that a good anti-skid effect can be achieved, and meanwhile, rotation adjustment of the transverse angle of the projection screen is not affected; the projection screen angle control device is arranged, so that longitudinal angle control can be performed on the projection screen.
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Description

technical field

[0001] The invention relates to the technical field of teaching tools, in particular to a multimedia teaching delivery screen. Background technique

[0002] Multimedia teaching means that in the teaching process, according to the teaching objectives and the characteristics of the teaching objects, the intelligent projection screen is rationally used, and it is organically combined with the traditional teaching methods to participate in the whole teaching process and use various media information to act on students to form a reasonable teaching environment. The structure of the teaching process can achieve the optimal teaching effect.

[0003] However, as far as the current traditional multimedia projection screen is concerned, the traditional projection screen only has the function of supporting and sliding, the function is relatively single, and the fixing effect with the ground is relatively poor, and it is easy to be touched and slide. The device is easil...

Claims

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