Manual hydraulic clamp convenient to use

The utility model discloses a hand-operated hydraulic clamp convenient to use, which comprises a first clamp body, a second clamp body and a movable handle, the second clamp body is upwards connected with the first clamp body, the head end of the first clamp body extends to form a C-shaped head, an oil cylinder, an oil bag and a pressure release valve are arranged in the second clamp body, a piston and a compression spring are arranged in the oil cylinder, and the movable handle is arranged in the oil bag. The end face of the outer side of the piston is fixedly connected with a column rod, the column rod is sleeved with the compression spring, the compression spring abuts against the piston and the inner wall face of the oil cylinder, the head end, extending out of the second clamp body, of the column rod is hinged to a movable block, and the movable block and the C-shaped head jointly form a jaw. The piston drives the movable block to be close to the C-shaped head to clamp an object, and when the oil cylinde