The invention discloses a projection device for elevator advertising, and belongs to the field of elevator advertising propaganda, the projection device comprises a mounting plate, the front surface of the mounting plate is fixedly connected with a mounting hole, the side surface of the top of the mounting plate is fixedly connected with a first supporting block, and one side of the first supporting block is provided with a second supporting block; the first supporting block and the second supporting block are movably connected through a movable shaft, a protection box is fixedly connected to the top of the second supporting block, and a connecting block is fixedly connected to the middle of the top end of the mounting plate. According to the projection device for elevator advertisement, by arranging a protection box, a top plate, heat dissipation holes and a filter plate, the exterior of a projector can be conveniently protected in the use process of the projection device, the problem that the projector is exposed outside is avoided, dust in air can be blocked and filtered, and the service life of the projector is prolonged. And the problem that the surface and the interior of the projector are damaged due to excessive dust adhesion is avoided, so that the service life of the projector is prolonged.

    本发明公开了一种用于电梯广告的投影装置,属于电梯广告宣传领域,包括安装板,所述安装板的正面固定连接有安装孔,且安装板顶部的侧面固定连接有一号支撑块,一号支撑块的一侧设置有二号支撑块,且一号支撑块与二号支撑块之间通过活动轴活动连接,二号支撑块的顶部固定连接有保护盒,安装板顶端的中部固定连接有连接块;该用于电梯广告的投影装置,通过设置保护盒、顶板、散热孔和过滤板,可以在该投影装置使用的过程中,便于对投影仪的外部进行防护,避免了投影仪暴露在外的问题,且能够对空气中的灰尘进行阻挡和过滤,避免了投影仪的表面和内部因灰尘粘附过多而发生损坏的问题,从而提高了投影仪的使用寿命。


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    Titel :

    Projection device for elevator advertisement


    Weitere Titelangaben:

    一种用于电梯广告的投影装置


    Beteiligte:
    XIANG AIYING (Autor:in) / SHEN JIANHUA (Autor:in) / YU FENGXI (Autor:in)

    Erscheinungsdatum :

    2022-05-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / B08B Reinigen allgemein , CLEANING IN GENERAL / B66B Aufzüge , ELEVATORS / F16M Rahmen, Gehäuse oder Grundplatten von Kraftmaschinen oder anderen Maschinen oder von Apparaten, nicht auf eine besondere Art von Maschine oder Apparat eingeschränkt, die anderweitig vorgesehen ist , FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE



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