| 摘要 |
<p>The invention relates to an universal lock for industrial installations with hard working environments, subjected to the action of the external environment, corrosive or dust environments, for example used for the access doors to the connection chambers from the high voltage transformer stations or from the hydro and thermal power stations, etc. According to the invention, the universal lock, driven by means of a key (A) from outside. consisting of a case (7) closed with a plate (1) and inside which there is welded the parallelepipedic body (2) provided with a bore (a) wherein there glides the cylindrical bolt (3), having at its lower side the cog rack-type toothed zone (f), the cylindrical bolt (3) being in engagement with a bush (6) provided with a toothed sector (g), the driving of the cylindrical bolt (3) by means of the bush (6), with the view of locking or unlocking the lock, being carried out with the help of the key (A) which is provided with a rod (11), glidably mounted, inside an eccentric longitudinal hole (s) obtained inside the cylindrical body (10) of the key.</p> |
