Early warning device

• Main Authors: GAO WEIWEI, XIAO QI, ZHANG DI, DING WEIBO, CHENG LEI
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2023
• Subjects: BLASTING; EARTH DRILLING; ENGINEERING ELEMENTS AND UNITS; FIXED CONSTRUCTIONS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; LUBRICATING; MECHANICAL ENGINEERING; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model provides an early warning device, and relates to the technical field of heave floor processing, the early warning device comprises a mounting shell, the inner side wall of the mounting shell is provided with a sliding groove, the mounting shell is slidably connected with a sliding plate through the sliding groove, the sliding plate is provided with a cross-shaped connecting rod, one end of the connecting rod is provided with a grounding rod, and the other end of the connecting rod is provided with a connecting rod. A power source is mounted on the inner top wall of the mounting shell, a switch is mounted at the bottom of the power source, an alarm is mounted on the mounting shell, the power source is electrically connected with the alarm, the switch is electrically connected with the power source, a mounting plate is mounted on the mounting shell, and expansion bolts are mounted on the mounting plate. The ground touching rod moves upwards along with the protrusion of the bottom plate, and fi