Load box detects stable structure of support

The utility model discloses a load box detects stable structure of support, including fixing pull rod, lay retainer plate, screw fastening cover and the joint is detained, it has the joint to detain to lay the fixed joint in retainer plate one side, joint knot both sides face is fixed and is seted up threaded hole, the joint knot is located threaded hole portion screw thread and installs the fixedscrew, the joint is detained and is being laid the retainer plate outside through fixed screw fixed mounting, the fixed welding in one side is detained to the joint has bolt lead screw, bolt lead screw keeps away from joint knot threaded one end and installs the screw fastening cover, screw fastening cover both sides face fixed welding respectively has the fixed block, the screw fastening cover has the pin rod through the fixed welding of fixed block, the utility model discloses owing to adopt the connecting piece will lay swing joint between retainer plate and the steel reinforcement cage, the work efficiency who ha