Wrap -around fixes a position clamping mechanism

The utility model discloses a wrap -around fixes a position clamping mechanism, expand including support guard shield, short stroke linear motion drive assembly, tapering and overlap, fix tight the overlapping and the locking cone cover of overlapping, expand, support guard shield lower extreme is connected with the fixed flange plate bolt who overlaps the upper end, the tapering expands to overlap and inserts downwards in the fixed cover, set up the location step of two at least cards in the tapering expands the breathing seam of cover on the fixed cover inner wall, the tapering expands the cover upper end and sets up two at least short stroke linear motion drive assembly that are connected with the support guard shield along ring flange a week is vertical, bloated tight cover is followed and is up inserted down in the bloated cover of tapering, the locking cone cover inserts fixed cover and the tapering expands between the cover and through flange dish and fixed cover lower extreme bolted connection. The ut