Tool handle with handle that is rotatable

A tool handle with a handle that is rotatable, comprising:

• a tool head,
• a tool bar, and
• the handle, configured to be manually operated by a human hand or foot;
• wherein the tool head, the tool bar, and the handle are disposed in a same plane, wherein the tool bar has an axial length greater than an axial length of the tool head to define an extended lever arm configured to amplify output torque upon manual force input for labor-saving fastening or unfastening operation;
• the handle is rotatably connected to a second end, away from the tool head, of the tool bar through a first rotating structure;
• wherein the handle is configured to be switched between a first position and a second position;
• when in the first position, a central axis of the handle is parallel to a central axis of the tool head;
• when in the second position, the central axis of the handle and a central axis of the tool bar are on a same line;
• wherein the first rotating structure comprises a first connecting head, a first positioning column, and a second connecting head;
• wherein a first groove is defined in the second connecting head;
• wherein the first connecting head is inserted into the first groove and is rotatable in the first groove;
• wherein the first connecting head is rotatably disposed in the first groove through a first rotating shaft;
• wherein a second groove is defined in a bottom surface of the first groove;
• wherein the first positioning column is extendable or retractable from the second groove and is slidably mounted within the second groove;
• wherein the first positioning column is coupled to a bottom surface of the second groove via a first spring such that spring force transfers sequentially from the first spring to a body of the first positioning column then to a first spherical protrusion formed integrally at an end of the first positioning column facing toward the first connecting head to realize three-stage force transmission;
• wherein the first spherical protrusion is configured to be fitted with a first positioning groove or the second positioning groove;
• wherein a first positioning groove and a second positioning groove are defined in a side wall of the first connecting head;
• wherein the first positioning column is configured to be inserted into the first positioning groove or the second positioning groove to enable the handle to switch between the first position and the second position;
• wherein a surface of the side wall of the first connecting head between the first positioning groove and the second positioning groove is a first arc-shaped curved surface.