Disconnect -type ratchet hydraulic wrench

The utility model relates to a can carry out quick assembly disassembly's disconnect -type ratchet hydraulic wrench and application method to the online pipe joint who is arranged in narrow and small space, install between two spanner wallboards and connect cushion, hydraulic power head and counter -force extension board, the drive plate both sides are equipped with two arc lugs and the drive plate is installed between two spanner wallboards through two arc lugs and the unsmooth cooperation of two arc recesses, and the drive plate upper end is equipped with two lugs and has just opened " 1 " font through -hole respectively in the side of two lugs, both sides end that activity pin and activity pin were installed through the pressure spring in drive plate upper end respectively with the cooperation of pegging graft of two " 1 " font through -holes, the eave tile that tailpiece of the piston rod head in the hydraulic power head was equipped with hook joint spare and hook joint spare catches on activity pin, the