Vehicle-mounted annular sound equipment loudspeaker

• Main Authors: ZHOU ZHIHONG, TIAN YANBO, LONG MING
• Format: Patent
• Language: Chinese; English
• Published: 06.06.2023
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; PUBLIC ADDRESS SYSTEMS

The utility model discloses a vehicle-mounted annular sound horn, which comprises a shell, a fixing ring is arranged on the outer wall of the top of the shell, a dustproof net is clamped in the fixing ring, a knob is rotatably connected to the outer wall of the top of the fixing ring through a bearing, an inner rod is arranged on the inner wall of the bottom of the fixing ring, and the knob is rotatably connected with the inner rod through a bearing. A torsional spring connected with the rotary knob is arranged on the inner wall of the bottom of the fixing ring, the torsional spring is connected outside the inner rod in a sleeving mode, and the outer wall, located on the inner wall of the fixing ring, of the rotary knob is integrally connected with a clamping block. The dustproof net can prevent dust from entering the loudspeaker, the rotary knob is rotated to drive the clamping block to be away from the interior of the clamping groove, and the dustproof net can be detached from the shell to be cleaned by pul