The principle of a torque wrench (torque wrench) making a click sound is very simple, which can be understood in the following steps:
1. The torque wrench indicates that the torque value you require has been reached after making a "Kata" sound;
2. The "cata" emitted by the torque wrench is produced by its internal torque release structure, which is divided into three structures: pressure spring, torque release joint and torque ejector rod
3. First, set the required torque value on the torque wrench (put pressure on the torque release joint by the spring sleeve on the ejector rod), lock the torque wrench and start tightening the bolts. When the bolt reaches the torque value (when the torque used is greater than the pressure of the spring), it will produce the effect of instantaneous disconnection. At the moment of the disjoint effect, the joint knock and the "Kata" sound made by the metal shell of the wrench are emitted. This is to confirm the reminder effect of reaching the torque value (in fact, it is the same as the principle that our arm joints will touch the steel pipe after being placed in the steel pipe with a 15 degree bending moment).
