The invention discloses a mining intrinsically safe type electric
ball valve, and belongs to the technical field of
coal mining safety facilities. The mining intrinsically safe type electric
ball valve comprises a shell, a
ball valve opening and closing mechanism, an electric ball valve body, a
signal collecting mechanism and a
control circuit board, wherein the shell is provided with an external power supply lead-in device, the electric ball valve body is arranged on one side of the bottom wall of the shell, the
signal collecting mechanism is arranged in a shell cavity, the
control circuit board is arranged in the shell cavity, and the ball
valve opening and closing mechanism comprises a motor and a reduction gearbox. The mining intrinsically safe type electric ball valve is characterized in that the
signal collecting mechanism comprises a signal collecting device positioning plate, a first signal collector, a second signal collector and a signal collector trigger plate, the upward side of the signal collector positioning plate is provided with a set of
control circuit board supporting columns, the control circuit board is fixed to the tops of the control circuit board supporting columns, a shell protection cover is fixed to the shell and provided with a set of indicator lamp holes, indicator lamp bases are fixed to the side, facing the control circuit board, of the shell protection cover, and a set of indicator lamps are arranged on the indicator lamp bases. The structure is simplified, manufacturing and installing are convenient, and materials are saved; the working stability and reliability are ensured; the working state of the electric ball valve can be revealed.