A support protection instrument for bolt dismouting

The utility model discloses a support protection instrument for bolt dismouting at first part to using bolted connection and the in-process that the second part carries out the dismouting, plays the support protective action, support protection instrument constitutes by half formula support ring of a pair of branch, around setting up the mounting hole edge at the second part, two liang of cooperations form and complete be annular support and protect the instrument, the central through hole of bolt by this support protection instrument in pass. The utility model discloses simple structure, convenient to use had both solved the support problem of bolt dismouting in-process, had carried out effective protection to bolt and other parts again, prevented damage and deformation because of the collision leads to the fact.