External wall climbing device equipped with a brake unit

External Wall Climbing Device with Integrated Brake System to Reduce Wire Load via Vertical Rail Braking

This technology is an external wall climbing device that features a brake unit mounted on the vertical movement module. By physically engaging with the vertical rail when stationary, it secures the module's position and reduces the load on the wire.

Previously, shocks generated during the docking process between the vertical and horizontal movement modules were transmitted to the wire, causing excessive tension. This led to wire stretching and breakage, posing a risk of robot falls and compromising maintenance safety.

This technology integrates a brake unit—consisting of a solenoid actuator, a linkage, and brake pads—into the vertical movement module. When the solenoid is activated, the linkage rotates, pressing the pads against the vertical rail to generate braking force. Applicable to cleaning and inspection robots for skyscrapers, it fundamentally prevents falls caused by wire breakage and maximizes operational safety.

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Key Features:

• A vertical rail installed on the building's exterior, perpendicular to the ground, to provide a path for movement.
• A vertical movement module equipped with multiple rail wheels, installed to move up and down along the vertical rail.
• A solenoid actuator installed on the vertical movement module and a brake pad unit inserted into the vertical rail for movement.
• A linkage that moves the brake pad unit into position to generate braking force through linkage motion when the solenoid actuator is engaged.

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This invention was developed with support from the Korea Agency for Infrastructure Technology Advancement (KAIA) for the development of a built-in guide type mobile/work platform.