| 摘要 |
A sleeve (1) for protecting cable joints comprising a base cup (2) through which cables are led, a mating closure cap (4) and a resilient sealing ring (5) interposed therebetween. A clamping ring (9) is mounted on the cap (4) and is provided with three bayonet lugs (40) which interengage with complementary ramps (41) on rotation of the clamping ring (9) to draw the cup (2) and cap (4) together without relative rotation therebetween. A base insert (6) of heat resistant material is interference fitted into the cup (2). The insert (6) includes a flange (30) having a return (31) defining together with the rim (22) of the base cup (2) a channel (32) for entrapping a retaining part (35) of the sealing ring (5). Cables (3,80,81) to be joined are led through holes drilled in the base (76) of the cup (2) and insert (6). Those compartments (8) through which cables have been led are filled with a resin material to seal the cables in place and prevent ingress of moisture. The joints are then made and the lugs (40) on the clamping ring (9) are inserted through channel slots (15) in the cap (4) and aligned slots (20) in the cup (2). The ring (9) is then rotated relative the cup and cap so that abutting surfaces (43), (45) on the ramps (41) and lugs (40) interengage to draw the cup and cap together. A lip (55) extends radially inwardly of a return leg (43) of a lug (40) to engage under the lower edge of stop walls (16) to prevent removal of the clamping ring (9) from the cap (4). |
