Quick-mounting type clamping plate mounting and fastening device

The invention relates to the technical field of orthopedic treatment, in particular to a fast-assembly type splint mounting and fastening device which comprises a limb, clamping auxiliary devices and a fixing device, the clamping auxiliary devices are evenly distributed outside the limb, and the fixing device is fixedly arranged in the middle of each clamping auxiliary device in a clamped mode. The fixing device comprises a first clamping and fixing ring, a fixing connecting plate, a first fixing threaded column, a threaded hole and a second clamping and fixing ring. The clamping auxiliary devices are evenly distributed on the periphery of the outer portion of the limb and play a role in fixing and protecting the limb, so that the limb can be safely and rapidly recovered, the clamping auxiliary devices play a main role in fixing through the clamping limiting main plates in the clamping auxiliary devices, and the fixing effect is good. And the sliding auxiliary clamping plate can be controlled to slide outward