Safety Devices of Suspended Platforms (Gondolas):

Safety Devices of Suspended Platforms (Gondolas):

The main safety devices of suspended platforms (gondolas) include the following:

• Safety Lock:

• This device automatically locks the safety wire rope, halting the suspended platform's descent or tilting, when the platform's downward speed reaches the locking speed or the tilting angle reaches the locking angle.
• Types include centrifugal trigger safety locks and swing arm anti-tilt safety locks. Swing arm safety locks can lock the safety wire rope when the working platform's tilt angle exceeds 3-8° or the working wire rope breaks.
• Conditions for safe use include: within the valid calibration period, having valid seals, using specified wire ropes, operating under normal conditions, operating within a temperature range of -20~+40℃, and being operated by trained personnel according to the user manual.
  • Upper Limit Protection Device:
• Limit plates are installed at a specified height (approximately 1m from the top) on the protective wire rope. When the gondola rises to the limit plate position, the upper limit contact touches the limit plate, forcibly cutting off the power supply.
  • Safety Rope (Manila Rope) and Anti-Slip Buckle:
• The safety rope must be securely fastened to the building and not tied to the gondola frame or other movable objects.
• Nylon safety ropes should be used, and the entire rope should be hung without splicing.
• Each gondola should have an independent safety rope, and the safety rope should not be connected to any part of the gondola.
• Workers inside the gondola must fasten their safety belts to the safety rope.
• The safety rope diameter must be within the specified range of the safety lock buckle, and the safety lock buckle must be sensitive and reliable.
• Only one person can be connected to each safety lock buckle.
  • Manual Descent Device:
• This device allows the suspended platform to descend smoothly in the event of a power outage.
  • Safety Wire Rope:
• Should be installed independently and pass through the safety lock.
  • Safety Latch (Locking Device):
• Manual hoists should be equipped with safety latches to prevent the gondola platform from automatically slipping during normal operation.
  • Travel Limit Switch:
• When using electric hoists, travel limit switches should be installed in both the upward and downward directions of the gondola platform to limit its vertical travel position and distance.
  • Brake:
• Electric hoisting mechanisms should generally be equipped with two independent brakes, each capable of stopping a gondola platform carrying 125% of the rated load.
  • Additional Safety Devices:
• These include speed limit protection, electrical overload protection, leakage protection, and emergency stop devices. These devices collectively ensure the safety and stability of gondola operations.