Torque structure

A torque structure comprising:

• a first body, a second body, an elastic member, a third body, a rotation member, a push member, and a moving member;
• wherein:
• the first body has a first end having an interior provided with a first receiving chamber which is a hollow circular hole;
• the first body has a second end provided with a control ring movable or operable relative to the first body;
• the second body is a hollow tube and is pivotally mounted on the first body;
• the second body is partially received in the first receiving chamber and has a first end provided with multiple first through holes;
• the second body has a second end provided with a first guide slot extending in a lengthwise direction of the second body;
• the first guide slot has an elongate shape and is hidden in the first receiving chamber;
• the first guide slot is distant from the first through holes;
• the second body is provided with multiple second through holes close to the first guide slot;
• the second through holes are hidden in the first receiving chamber;
• the first guide slot is located between the first through holes and the second through holes;
• the second through holes are arranged annularly about an axis of the second body;
• the second end of the second body has an outer peripheral face provided with multiple positioning grooves hidden in the first receiving chamber;
• the positioning grooves are arranged annularly about the axis of the second body;
• each of the positioning grooves has a concave shape;
• the second body is provided with a second guide slot hidden in the first receiving chamber;
• the second guide slot is opposite to the first guide slot and has an elongate shape;
• the elastic member is received in the second body, and provided with a push block;
• the control ring is operated to control the first body so that the first body is rotatable or non-rotatable relative to the second body;
• when the first body is rotatable relative to the second body, the first body is rotated relative to the second body to adjust a length of the elastic member and to regulate a torque value of the torque structure;
• the third body is mounted on the second body;
• the second body is mounted between the first body and the third body;
• the third body is provided with a mounting portion and an operation portion;
• the mounting portion is mounted in the second body;
• the mounting portion is provided with multiple third through holes aligning with the first through holes;
• the operation portion is provided with a first receiving recess;
• the first receiving recess has a circular shape and penetrates the operation portion;
• the mounting portion has an interior provided with a second receiving chamber which is perpendicular to and connected with the third through holes;
• the second receiving chamber extends to the first receiving recess;
• the rotation member is pivotally mounted in the first receiving recess;
• the rotation member has a ring shape and has an exterior provided with a first outer peripheral face and an interior provided with a first inner peripheral face;
• the first outer peripheral face is provided with multiple protruded portions and multiple recessed portions which are spaced and arranged annularly;
• each of the recessed portions is located between two of the protruded portions;
• the push member is received in the third body and is movable through a distance;
• the push member is received in the second receiving chamber;
• the push member rests on or presses one of the protruded portions or one of the recessed portions;
• the moving member is received in the second receiving chamber and is movable through a distance in the second receiving chamber;
• the moving member is a circular rod and provided with a perforation aligning with the first through holes and the third through holes;
• the perforation has an elongate shape;
• the moving member has a first end provided with an abutting portion resting on or pressing the push member;
• the moving member and the push member are movable simultaneously through a distance in the second receiving chamber;
• the abutting portion is a circular dimple or depression partially receiving the push member;
• the moving member has a second end directly pressing the push block or indirectly pressing the elastic member;
• the third body has a torque slip effect by cooperation of the elastic member and the moving member;
• a second fastening member extends through the first through holes, the third through holes, and the perforation, and limits a displacement distance of the moving member;
• the perforation is movable relative to the second fastening member;
• and
• the second body and the third body are assembled by the second fastening member.