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Multimedia projection device with assembled projection plate and use method of multimedia projection device

A projection device and projection board technology, applied in projection devices, optics, instruments, etc., can solve the problems of not having a device for installing both at the same time, unable to switch between the video screen and projection board, cumbersome installation and debugging, etc., to achieve convenient operation , Easy to debug, fast to use

Inactive Publication Date: 2020-09-18
广西轻舟信息科技有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

During the use of the projection device, the projector and the projection screen or projection board are generally installed separately, and the images projected by the projection screen and the projection board are different, and there is no device for installing both on the same projector. , the process of installation and debugging is more cumbersome, and the video screen and projection board cannot be switched according to the user's preference

Method used

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  • Multimedia projection device with assembled projection plate and use method of multimedia projection device
  • Multimedia projection device with assembled projection plate and use method of multimedia projection device
  • Multimedia projection device with assembled projection plate and use method of multimedia projection device

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Embodiment Construction

[0025] 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.

[0026] see Figure 1-4 , the present invention provides a technical solution: a multimedia projection device with an assembling projection board, comprising a cabinet 1, a fixed bracket 2 is arranged on the top of the cabinet 1, a bearing seat 3 is arranged on the top of the fixed bracket 2, and the bearing seat 3 The inner wall is provided with snap-in collars 4 through the connecting shaft. The snap-in collars 4 are two sets of semicircular collars. The tops...

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Abstract

The invention discloses a multimedia projection device with an assembled projection plate, which belongs to the technical field of multimedia projection. The device comprises a case; a fixed bracket is arranged at the top of the case; a bearing seat is arranged at the top of the fixed bracket; a clamping lantern ring is movably arranged on the inner wall of the bearing seat through a connecting shaft; an outer protective shell is movably arranged on the inner wall of the case; a servo motor is arranged on the outer wall of the rear end of the outer protective shell; the output end of the servomotor is connected with a rotating shaft through a speed reducer; the other end of the rotating shaft extends to the inner side of the outer protective shell and is connected with a driving gear; a sliding rod is movably arranged at the bottom of the fixed bracket; the bottom of the sliding rod is connected with a winding drum. The projection device has the advantages that the projection device is integrated, the installation and the debugging are convenient, the use of the projection device is faster, a projection screen or a projection plate is selectively used, different requirements of users are met, the texture of projected images is not influenced, the integral structure is convenient to operate, and the use is more convenient.

Description

technical field [0001] The invention relates to the technical field of multimedia projection, in particular to a multimedia projection device with an assembleable projection board and a usage method. Background technique [0002] Existing classrooms, lounges, and public places often use projection devices, through which the images can be projected and enlarged, making it easier to watch and experience different visual effects. During the use of the projection device, the projector and the projection screen or projection board are generally installed separately, and the images projected by the projection screen and the projection board are different, and there is no device for installing both on the same projector. , the process of installation and debugging is relatively cumbersome, and the video screen and projection board cannot be switched according to the user's preference. To this end, we propose a multimedia projection device with an assembleable projection board and ...

Claims

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Application Information

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IPC IPC(8): G03B21/56G03B21/14
CPCG03B21/145G03B21/56
Inventor 严艺勇
Owner 广西轻舟信息科技有限公司
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