Quick-release torque device
A quick-release torque device is provided, including: a main body, including a receiving hole, a connecting hole for assembling of a driven member, and a through hole in communication with the receiving hole and the connecting hole, the receiving hole and the connecting hole being respectively opened on opposing sides of the main body; an annular magnetic member, fixedly received in the through hole; a push rod, movably inserted within the through hole and the annular magnetic member.
1 . A quick-release torque device, including:
a main body including a receiving hole, a connecting hole for assembling of a driven member, and a through hole in communication with the receiving hole and the connecting hole, the receiving hole and the connecting hole being respectively opened on opposing sides of the main body;
an annular magnetic member fixedly received in the through hole; and
a push rod movably inserted within the through hole and the annular magnetic member;
wherein the main body further includes a handle and a barrel rotatably inserted in the handle, the barrel is integrally formed of one piece, and the barrel includes the receiving hole, the connecting hole and the through hole;
wherein the main body further includes a partition extending radially and located between the receiving hole and the connecting hole, the through hole is disposed through the partition, and the partition is tapered radially inward;
wherein the through hole includes a small diameter section in communication with the receiving hole and a large diameter section in communication with the connecting hole, the large diameter section is located between the small diameter section and the connecting hole, a diametric dimension of the connecting hole is larger than a diametric dimension of the large diameter section, an axial dimension of the large diameter section is larger than an axial dimension of the annular magnetic member, and the annular magnetic member is fixed in the large diameter section;
wherein an annular side face of the annular magnetic member and the main body define an annular gap therebetween, and the annular gap expands radially inward and is conical around the push rod;
wherein the annular magnetic member includes two openings expanding outward and being conical.
2 . The quick-release torque device of claim 1 , further including an elastic member, wherein the push rod includes a head portion received in the receiving hole and a body portion extending from the head portion and inserted in the through hole and the annular magnetic member, and the elastic member is disposed between the head portion and the partition.
3 . The quick-release torque device of claim 2 , wherein the head portion is outwardly convex and protrusive beyond the receiving hole.
4 . The quick-release torque device of claim 2 , wherein the main body further includes a first flange extending along a periphery of the receiving hole and extending radially inward, and the head portion is axially blockable by the first flange.
5 . The quick-release torque device of claim 4 , wherein the elastic member is a conical coil spring disposed around the body portion; the head portion is outwardly convex and protrusive beyond the receiving hole; the barrel is connected to the handle and unidirectionally rotatable relative to the handle; one of the two openings facing the small diameter section has a diametric dimension larger than a diametric dimension of the small diameter section.
6 . The quick-release torque device of claim 1 , wherein an end face of the push rod is retractable to be located within the annular magnetic member.
7 . The quick-release torque device of claim 1 , wherein the annular magnetic member is entirely within the through hole and does not extend to be within the connecting hole.