Torque wrench

A torque wrench including:

• a main body defining an axial direction and including a work portion and a housing connected to each other, the work portion generating a warning sound when receiving a torque larger than a preset torque value, the housing being non-rotatably connected to the work portion, the housing including a first toothed portion;
• a grip rotatably connected to an end of the housing;
• a torque transmission mechanism including a torque adjustment member, the torque adjustment member being rotatably disposed in the main body, the preset torque value being adjustable by rotating the torque adjustment member;
• a torque sensing mechanism disposed on the main body and including a sensing assembly and an output port, the sensing assembly including a detecting unit and a sensing unit, the detecting unit being electrically connected to the output port, the torque adjustment member being configured to drive the sensing unit to move in the axial direction relative to the detecting unit, the detecting unit being configured to detect a position of the sensing unit to generate a torque sensing signal, the output port being disposed on the main body, the output port being configured to be electrically connected to an output unit to receive and transmit the torque sensing signal;
• an adjustment mechanism including a rotatable member, a driving member and a limitation member, the grip being disposed around and rotatable with the rotatable member, the rotatable member being disposed around and rotatable with the driving member, the rotatable member being movable between a first position and a second position in the axial direction relative to the grip, the driving member and the limitation member, the rotatable member including a second toothed portion, the driving member being disposed on the main body and non-movable in the axial direction, the driving member and the torque adjustment member being rotatable with each other, the torque adjustment member being movable in the axial direction relative to the driving member, the driving member and the limitation member being connected to each other in the axial direction;
• wherein when the rotatable member is in the first position, the second toothed portion of the rotatable member is engaged with the first toothed portion of the housing so that the rotatable member and the housing are rotatable with each other;
• when the rotatable member is in the second position, the second toothed portion of the rotatable member is disengaged from the first toothed portion of the housing;
• wherein when the rotatable member moves from the first position toward the second position, the rotatable member approaches toward the limitation member and blocks the limitation member in the axial direction.