Torque wrench

The invention provides a torque wrench which comprises a wrench rod and a wrench head which are connected with each other. A sleeve and a mark coating and printing device are assembled on the wrench head; the mark coating and printing device is assembled in a mounting hole of the wrench head; the bottom of the mark coating and printing device extends into a through hollow cavity of the sleeve; and the mark coating and printing device can reciprocate along the axis of the sleeve to print marks. According to the torque wrench provided by the invention, the mark coating and printing device and the torque wrench are integrated into an integrated structure, so that mark coating and printing are automatically carried out by adopting the same equipment after preset torque is applied to a bolt, time and labor are saved, and the working efficiency is high. 本发明提供了一种扭力扳手，包括相互连接的扳手杆和扳手头，所述扳手头上组装有套筒和印记涂打器，所述印记涂打器组装在所述扳手头的安装孔内，底部伸入到所述套筒贯通的空心腔内，并可沿所述套筒的轴线往复运动打印标记。本发明提供的一种扭力扳手，印记涂打器与扭力扳手综合成一体结构，实现螺栓施加预定的扭力后，采用同一设备自动进行印记涂打，省时