The utility model relates to hoisting machinery technical field, and disclose a kind of hoisting
pulley device of anti-drop slot, solve the problem proposed in background art, it includes
pulley body, support and steel
wire rope, further include: anti-drop slot mechanism, the anti-drop slot mechanism includes rotatable baffle being symmetrically arranged in the both sides of
pulley body, rotatable baffle is hinged with support by pivot;Self-
locking mechanism, the self-
locking mechanism includes
ratchet strip being arranged on at least one side baffle and elastic pawl being arranged on support,
ratchet strip and elastic pawl engage to constitute one-way locking structure;Reset mechanism, the reset mechanism includes
torsion spring being sleeved on pivot, the utility model, with can effectively block steel
wire rope, even in the case where steel
wire rope swings or deflection, also can prevent its drop slot, reduce manual intervention, improve the degree of
automation of device, also avoid the effect of hoisting failure or equipment damage due to baffle not reset.