| 摘要 |
<p>The invention relates to a universal automatic clamp with fast fixing, for tri-phased or mono-phased mobile short-circuiting devices, meant for grounding and short-circuit connecting sphere-type couplings, flexible multicore conductors, round bars, T-shaped fixed couplings or flat bars with rectangular section of electric installations. According to the invention, the clamp comprises a U-shaped body (1) whereto there is articulated a triggering/releasing lever (3), which has a central peg (5), whereon there is a roll (6) for blocking/unblocking a mobile box (7), the lever (3) being under the action of a helical spring (8), mounted on a positioning peg (2), at the lower side of the body (1) there being provided a lower bushing (10), screwed into the body (1), which is secured against rotation by a blocking threaded peg (11), in the lower bushing (10) there may be rotated an actuation screw (12) with large-pitch square thread, whereon there is fixed, by means of some blocking pegs (13 and 14), a pressing bushing (15), for pressing/releasing some clamping boxes (16), an actuation rod (17), on the clamping boxes (16) there being placed a pressing washer (18), whereon a helical spring (19) rests, also supported on a supporting bushing (20), on the clamping rod (17), there being fixed, by means of an intermediary bushing (21) and a central screw (22), a central support (23), whereon the mobile box (7) is fastened, a triggering helical spring (24) being provided between the central support (23) and the body (1).</p> |
