Visual alarm device based on railway tunnel ventilation

• Main Author: JIA XIONGFENG
• Format: Patent
• Language: Chinese; English
• Published: 05.07.2022
• Subjects: ALARM SYSTEMS; EARTH DRILLING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; FIXED CONSTRUCTIONS; MINING; ORDER TELEGRAPHS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; SEPARATION; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TRANSPORTING

The invention discloses a visual alarm device based on railway tunnel ventilation, which comprises a visual alarm structure, a plurality of groups of fixing frames are uniformly arranged on the visual alarm structure, linear differential temperature fire detectors are mounted on two sides of each fixing frame, and a ventilation structure is mounted in the middle of each fixing frame through a support; the installation box is welded to the bottom of the ventilation structure, a fixing block is movably installed in the installation box, meanwhile, a visual camera is installed on the fixing block in a threaded connection mode, and a knocking structure is installed on the side wall of the ventilation structure. According to the visual alarm device based on railway tunnel ventilation, the mounting base drives the two sets of rubber strips on the mounting base to rotate, the rubber strips beat the outer side wall of the ventilation structure through the steel balls on the rubber strips, sound is generated, and the