Anti-thread-slipping internal fixing steel plate component

The utility model discloses an anti-thread-slipping internal fixation steel plate component, which relates to the field of orthopedic internal fixation steel plates and comprises an internal fixation steel plate, and a plurality of first assembly grooves or second assembly grooves which are linearly distributed at equal intervals are formed in the upper end face of the internal fixation steel plate. A screw hole is concentrically formed in the bottom of each first assembling groove or the bottom of each second assembling groove, and the screw holes penetrate through the inner fixing steel plate. The screw head can be screwed through the regular polygon notch, the screw can be directly screwed through the outer surface of the screw head to be disassembled when the inside of the regular polygon notch slips, and the screw head can be disassembled through the design of the open groove when the inner surface and the outer surface of the screw head are all slipped. And then the conical screw is dismounted by screwi