Small LED screens need to be paired with dedicated lifting frames, connected to the universal hooks of the lifting frames via the chains of hand chain winches to ensure the screens remain level during lifting and lowering. Stage side lights (weighing 5-10kg) can be directly fixed with hooks; during hoisting, their height must be precisely controlled to ensure the light projection angle covers the performance area while avoiding the risk of actors colliding with the lighting equipment due to it being too low. During operation, workers can stand at the edge of the stage and manually pull the chain. With the help of the winch's gear reduction structure, the equipment can be lifted and lowered smoothly, eliminating the need for additional scaffolding or operating platforms, thus significantly saving venue space and installation time.
For lighter special effect equipment, the temporary suspension advantage of hand chain winches is even more prominent: there is no need to drill holes in walls or ceilings for fixation. Quick suspension can be achieved simply by connecting the equipment to the winch chain with adjustable slings. After the performance, disassembling only requires pulling the chain in reverse to lower the equipment and releasing the hooks. The entire process only requires 1-2 people to operate and leaves no installation traces on the venue. This greatly facilitates subsequent quick adjustments according to different performance styles (such as folk performances requiring fewer special effect equipment and electronic performances requiring more strobe lights to be suspended), making hand chain winches well-suited to the high-frequency and multi-scene performance needs of small livehouses.
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