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Inspection well cover stolen warning device
An inspection well cover stolen warning device comprises an inspection well cover and an inspection well ring, wherein the inspection well cover is arranged in the inspection well ring, and a left cover plate and a right cover plate are arranged on the left side and the right side of the inspection well ring respectively; a round hole is formed in the right cover plate, and a reed pipe is arranged in the round hole; the lower face of the reed pipe is connected with a strong magnet, and the strong magnet is fixed to the right side of the inspection well cover; an alarming apparatus is arranged on the left cover plate, and a wire is arranged on the side edge of the inspection well ring; and a lower right buckle and an upper right buckle are arranged on the lower right side and the upper right side of the inspection well ring, and a lower left buckle and an upper left buckle are arranged on the lower left side and the upper left side of the inspection well ring. The two ends of the alarming apparatus are electrically connected with the two ends of the reed pipe through wires, and the alarming apparatus gives an alarm through an open circuit. When the inspection well ring is taken out of the inspection well cover, the strong magnet on the inspection well cover releases the reed pipe, the reed pipe is disconnected and is not connected, and the alarming apparatus can give the alarm. Therefore, when the inspection well cover is lost, the alarm can be given out, people are reminded to pay attention, and accidents are avoided.
Inspection well cover stolen warning device
An inspection well cover stolen warning device comprises an inspection well cover and an inspection well ring, wherein the inspection well cover is arranged in the inspection well ring, and a left cover plate and a right cover plate are arranged on the left side and the right side of the inspection well ring respectively; a round hole is formed in the right cover plate, and a reed pipe is arranged in the round hole; the lower face of the reed pipe is connected with a strong magnet, and the strong magnet is fixed to the right side of the inspection well cover; an alarming apparatus is arranged on the left cover plate, and a wire is arranged on the side edge of the inspection well ring; and a lower right buckle and an upper right buckle are arranged on the lower right side and the upper right side of the inspection well ring, and a lower left buckle and an upper left buckle are arranged on the lower left side and the upper left side of the inspection well ring. The two ends of the alarming apparatus are electrically connected with the two ends of the reed pipe through wires, and the alarming apparatus gives an alarm through an open circuit. When the inspection well ring is taken out of the inspection well cover, the strong magnet on the inspection well cover releases the reed pipe, the reed pipe is disconnected and is not connected, and the alarming apparatus can give the alarm. Therefore, when the inspection well cover is lost, the alarm can be given out, people are reminded to pay attention, and accidents are avoided.
Inspection well cover safety warning device and working method thereof
Europäisches Patentamt | 2022
|Inspection well cover opening wireless early warning protection system
Europäisches Patentamt | 2021
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