Wrench device

A wrench device comprising:

• a handle bar, a pivoting jaw and a sliding jaw;
• the handle bar having a driving head defined at one end thereof, the driving head having a connection base defined at one end thereof, the connection base having a guiding wall defined at one side thereof;
• the pivoting jaw being L-shaped and having a first receiving groove recessed inwardly at a bending portion of the outer periphery thereof, the first receiving groove corresponding to the connection base, an interval distance for rotating the pivoting jaw relative to the connection base being limited by the bottom face of the first receiving groove, the pivoting jaw having a sliding groove opened through the first receiving groove;
• and
• the sliding jaw having a sliding portion defined thereon, the sliding portion moving relative to the sliding groove, a driving opening being formed between the pivoting jaw and the sliding jaw, the sliding jaw having a pushing portion defined at one end thereof, the pushing portion corresponding to the guiding wall;
• wherein when the handle bar is rotated clockwise, the pivoting jaw is abutted against the upper portion of the driving head, so that the pivoting jaw and the sliding jaw is fixed relative to the connection base;
• thereby, the driving opening is attached to an object so as to lock or unlock the object;
• on the contrary, when the handle bar is rotated counterclockwise, the pivoting jaw is not abutted against the upper portion of the driving head, so that the pivoting jaw and the sliding jaw rotate relative to the connection base;
• thereby, the guiding wall abuts against the pushing portion, so that the sliding portion of the sliding jaw slightly moves opposite to the pivoting jaw in the sliding groove so as to enlarge the width of the driving opening;
• in addition, the enlarged width equals to the size of said interval distance for rotating the pivoting jaw relative to the connection base, and the enlarged width is larger than the width of the object;
• therefore, the object does not rotate with the rotation of the driving opening.