| 摘要 |
<p>The invention relates to a cap and plug which, by mutual, internal, permanent connection, protects and secures the plug. On the underside, within the middle part of the body (3) of the cap, a ring is made comprising a rim of circularly placed and spaced tentacles (1) with teeth (2) turned to the external lateral side for hooking and connecting to a segmented stepwise transition (11, 12) on the upper side of the middle free section at the ends of the segments (10) of the body (6) of the plug. By manual pressure on the cap, an inseparable connection between the cap and the plug is made and thus the safe protection of the drum plug, without using any tools, is obtained.</p> |
