Classroom projector device adopting electromagnetism to adjust height
A technology for adjusting the height and the projector, which is applied to the image reproducer of the projection device, the parts of the color TV, the electrical components, etc., and can solve the problems of affecting the quality of teaching, the projection is not correct, and the bending resistance of the rod is not strong.
Active Publication Date: 2021-09-24
ANHUI GUOYAO COMM TECH CO LTD
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Problems solved by technology
Multimedia teaching has greatly improved the efficiency of the classroom, but most of the projectors, which are important teaching tools, have the phenomenon of incorrect projection, which greatly affects the viewing of students and thus affects the quality of teaching
The reason is that most of the projectors in the classroom are installed on the ceiling, and the projector and the roof are only connected by a rod, and the rod’s ability to resist bending is not strong. Small disturbances, such as wind blowing, vibration, etc., will also cause a relative deviation between the projector and the original installation position
The support frame of the current projector is a fixed frame, and the height of the projector cannot be adjusted. Every time the height or angle is adjusted, a professional needs to be debugged, which greatly delays the teaching time
Method used
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] see Figure 1 to Figure 9 , the present invention provides a technical solution: a classroom projector device using electromagnetic height adjustment, including a ceiling mount 1, the ceiling mount 1 is fixed on the top of the classroom wall by bolts, and the top of the ceiling mount 1 inner wall is welded with teeth Block 11, in the suspended ceiling fixed frame 1, the connecting plate 2 is slidably connected, and the connecting plate 2 is a plate set ...
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The invention relates to the technical field of classroom projector devices, in particular to a classroom projector device adopting electromagnetism to adjust height, which comprises a suspended ceiling fixing frame, the suspended ceiling fixing frame is fixed at the top end of a classroom wall through bolts, a tooth block is welded at the top end of the inner wall of the suspended ceiling fixing frame, and a connecting plate is slidably connected in the suspended ceiling fixing frame. A connecting plate is welded to the lower end of the base, fan-shaped grooves are symmetrically formed in the two sides of the connecting plate, a locking mechanism is arranged in the connecting plate, a supporting cylinder is welded to the lower end of the connecting plate, and sliding grooves are symmetrically formed in the side faces of the supporting cylinder. The gear disc drives the first threaded rod to rotate, the threaded sleeve and the sliding block are made to move along one end of the sliding groove, then the supporting plate is driven to move, the supporting plate drives the projector to move, and therefore the height of the projector is adjusted.
Description
technical field [0001] The invention relates to the technical field of classroom projector devices, in particular to a classroom projector device that uses electromagnetic height adjustment. Background technique [0002] A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to a computer, VCD, DVD, BD, game console, DV, etc. through different interfaces to play the corresponding video signal. With the continuous advancement of science and technology, multimedia teaching has become a mainstream teaching method; projectors, as an indispensable tool in multimedia teaching, have become the standard configuration of every classroom. Multimedia teaching has greatly improved the efficiency of the classroom, but most of the projectors, which are important teaching tools, have the phenomenon of incorrect projection, which greatly affects the students' viewing and thus affects the quality of teaching. The reason is th...
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IPC IPC(8): H04N9/31
CPCH04N9/3141
Inventor 陈浩王炜李莹
Owner ANHUI GUOYAO COMM TECH CO LTD