Patent ID: 6736031
Filing Date: 2004-05-18
Classification: B25B

Abstract:
A pair of pliers for disassembling a pipe fastening clamp comprising a left and a right body pivotally combined together, said left and said right body respectively having its lower portion formed with a handle, said right body having said handle bored with a through hole at a proper location, said left and said right body respectively having its upper end provided with a control member, a torque spring pivotally combined with said left and said right body, said torque spring having two feet respectively pushing against the inner edges of said two handles of said left and said right body, said torque spring able to always push said two handles outward, a press lever pivotally assembled in said through hole of said handle of said right body, an adjusting and positioning member having one end pivotally combined with said handle of said left body and the outer end inserted in said press lever; and,characterized by said control members respectively bored with through holes, a control device connected with said control members, said control device provided with two control tubular lines, said two control tubular lines respectively inserted therein with a steel wire, said steel wire having one end inserted through said through holes of said two control members, said control tubular line having one end provided with a positioning block, said positioning block having one end fixed with a projection, said projection formed with an annular groove for receiving a lock washer therein, said control tubular line having the other end provided with a push member, said steel wire having one end fitted around with a fixing member, said fixing member compressed and secured on the ends of said two steel wires, said control tubular lines having the other ends further combined with two clamping blocks facing each other, said two clamping blocks respectively bored at the inner side with a recessed groove, each said steel wire between said two clamp blocks fitted around with a spring, said handles of said pliers held and squeezed to force said two control members to pull forward said two steel wires, said two steel wires actuating said clamping blocks to move close to each other, said two clamping blocks clamping the two ears of a pipe fastening clamp, said pipe fastening clamp expanded open and no long clamping tightly the adapter of the pipe, convenient for disassembling the pipe.