About the tower crane safety device:
(1) Hook safety device: to prevent the
sling on the hook by the automatic safety device on the hook slip. That opening
install a hook head pressing spring, closing the opening, this spring sheet can
only push down on, put not dug up after people sling to prevent sling off
automatically.
(2) reel safety device: Effective measures beyond the rope due to improper outside winding reel accident prevention. Its practice varies, mostly shrouded in welding a steel drum, the restrictions can only move within the rope reel range.
(3) Fixed base: digging the groove depth 600mm, the dust poured concrete, the surface smooth, waterproof and ground protection measures.
(2) reel safety device: Effective measures beyond the rope due to improper outside winding reel accident prevention. Its practice varies, mostly shrouded in welding a steel drum, the restrictions can only move within the rope reel range.
(3) Fixed base: digging the groove depth 600mm, the dust poured concrete, the surface smooth, waterproof and ground protection measures.
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