| 摘要 |
<p>The invention relates to a safety system for threaded joints meant to fix nuts in screwing position and to prevent them from being unscrewed, which are used for mounting the equipments which are subjected to impact and vibration stress during functioning. According to the invention, the system comprises a special washer () ensuring the locking of a hexagonal nut () after screwing two elements () which do not belong to the system, assembled by means of a stud (), a plain washer () and a nut (), the washer () being provided with a hexagonal recess at one end and at the other end with one hole or number "n" of holesφD which ensure the fixation of the washer () in the position for screwing the nut () by means of a fixing screw ().</p> |
