Patent ID: 8584554

Claim:
A torque multiplier, comprising: a main body, which comprises therein at least one gear train, the gear train having upper and lower ends respectively forming a torque input port and a torque output shaft that is adapted to connect a tool piece; at least one torque input shaft, which is received in the torque input port of the main body, the torque input shaft having an end portion of which a circumferential surface forms a plurality of teeth, the teeth mateable with the gear train located in the main body, the torque input shaft having an opposite end forming a coupling end that is adapted to couple with a tool connector formed at an end of a torque device in order to allow the torque device to rotate the torque input shaft and applies a torque input to the torque input shaft for rotating the gear train contained in the main body and providing a multiplied torque output to the torque output shaft; at least one torque sensor, which is mounted to a surface of the torque output shaft on the lower end of the gear train of the main body to detect the torque input of the torque input shaft and provides a torque value signal; at least one angle sensor, which is mounted to a surface of the main body to detect a horizontal angle of the main body and the torque device and provide an angle value signal; and at least one information transmission circuit, which is received in the main body, the information transmission circuit converting the torque value signal of the torque sensor and the angle value signal of the angle sensor into data and adapted to transmit the data to an electronic device.