Safety device of well control pressure testing

The utility model provides a safety device of well control pressure testing, this safety device of includes guide Assembly, protective cover plate and two sets of transmission, and guide Assembly contains H shaped steel, fixed plate and stopper, and protective cover plate welds the rectangle truss that forms by light steel, rectangle truss hookup shrouding, the rectangle truss couples at guide Assembly's H shaped steel inslot, every set transmission contains the nut, the walking wheel, the driven shaft, the bearing frame, the box coupling, universal joint, the hollow shaft, gear motor, the spacer, driving shaft and back shaft, in the ground engaging wheel walking simultaneously of two lower gear motor of well control pressure testing device operating condition, four leading wheels of symmetry hookup lead, remove to the pressure testing protective cover plate near coal -mine and near coal -mine closed with the pressure testing, the pressure testing hole is gone into to personnel's mistake in the work that prev