Patent ID: 8215187

Claim:
A torque detection device, comprising: an enclosure, which forms an internal chamber and having opposite side walls each defining a passage; at least one torque-strain bar, which is received in the internal chamber of the enclosure and has opposite end sections forming coupling terminals respectively received through the passages defined in the opposite side walls of the enclosure to project outside the enclosure for selectively receiving an external torque and coupling with tool piece to which the torque is to be applied; at least one adaptor, which has opposite ends respectively forming a first raised coupling section and a recessed coupling cavity, the first raised coupling section being selectively coupleable with a first one of the coupling terminals of the torque-strain bar, the recessed coupling cavity being adapted to connect to a tool coupling end of a torque device; at least one coupler, which has opposite ends respectively forming a second raised coupling section and a third raised coupling section, the second raised coupling section being selectively coupleable with a second one of the coupling terminals of the torque-strain bar, the third raised coupling section being adapted to connect to a fitting bore of the tool piece; at least one strain gauge, which is directly mounted to a surface of the toque-strain bar to detect the torque applied to the torque-strain bar and to convert the torque into a torque value signal; and at least one torque display unit, which is received in the internal chamber of the enclosure and is connected to the strain gauge to receive the torque value signal for performing displaying of torque value, alarming, and storage in respect of the torque value signal.