1results about How to "Few components" patented technology

The utility model discloses a self -locking lifting appliance, including boom, horizontal support seat and clamping arm, one end of boom is perpendicular and is through horizontal support seat, and extends to the below of horizontal support seat, and one end of boom is installed with support block, and both ends of support block all articulate with connecting rod, and the symmetry is arranged between connecting rod, and clamping arm sets up two groups, and is respectively symmetrically articulated in both ends of horizontal support seat, and one end of clamping arm is located above horizontal support seat, and the other end of clamping arm is located below horizontal support seat, and is articulated with connecting rod, and the other end of clamping arm is installed with the clamping block of adaptation with work piece. In the utility model, through boom, horizontal support seat, connecting rod, support block, clamping arm and clamping block cooperation, the clamping of work piece is facilitated, and realizes self -locking after work piece clamping, guarantees that the worker can install work piece safely and quickly.