Novel multifunctional loudspeaker device applied to weak current engineering security and protection

The utility model relates to a novel multifunctional loudspeaker device applied to weak current engineering security and protection. The novel multifunctional loudspeaker device comprises an outer cover and a loudspeaker body arranged in the outer cover. The bottom of the outer cover is provided wit...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG LIJIE, RUAN YIHENG, LIU CHUANHU, ZHU CHENLU, XIONG JIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ALARM SYSTEMS BLASTING DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ENGINEERING ELEMENTS AND UNITS FRAMES, CASINGS, OR BEDS OF ENGINES OR OTHER MACHINES ORAPPARATUS NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUSPROVIDED FOR ELSEWHERE GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MECHANICAL ENGINEERING ORDER TELEGRAPHS PHYSICS PUBLIC ADDRESS SYSTEMS SIGNALLING SIGNALLING OR CALLING SYSTEMS STANDS OR SUPPORTS THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The utility model relates to a novel multifunctional loudspeaker device applied to weak current engineering security and protection. The novel multifunctional loudspeaker device comprises an outer cover and a loudspeaker body arranged in the outer cover. The bottom of the outer cover is provided with a sound amplification hole corresponding to the loudspeaker body, the sound amplification hole is located in the middle of the bottom of the outer cover, the bottom of the outer cover is sequentially provided with a first ring body and a second ring body from inside to outside, the first ring body and the second ring body are rotationally connected with the outer cover, the sound amplification hole is located in the inner side of the first ring body, and the first ring body is provided with an identification projection lamp. The second ring body is provided with a sensor for sensing the approaching of a person; the device further comprises a controller arranged in the outer cover, and the identification projectio