External wall climbing device with automatic water supply function and horizontal movement unit

Exterior wall climbing device with automatic fluid replenishment via valve-coupling docking

This technology enables automatic fluid replenishment in exterior wall maintenance climbing devices through a docking mechanism between the lift unit and the horizontal movement unit. It utilizes a rack-and-pinion gear-based valve movement mechanism and a valve-coupling structure to optimize fluid storage and replenishment efficiency.

Existing exterior wall maintenance methods face issues such as aesthetic damage and restricted movement due to long hose connections, as well as reduced stability and frequent downtime for refilling caused by the limited capacity of onboard storage tanks.

This technology introduces an automatic water supply system via a valve-coupling interface between the lift unit's primary storage tank and the horizontal movement unit's secondary storage tank. During docking, the lift supplies fluid, optimizing the robot's onboard capacity and distributing the load. Applicable to exterior wall cleaning robots, it enables continuous operation without hoses, enhancing both work efficiency and building aesthetics.

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Key Features:

• Lift unit capable of vertical movement along rails on building exterior walls
• Horizontal movement unit that travels along horizontal rails and docks with the lift unit
• Primary storage tank installed on the lift unit for storing cleaning fluid
• Valve-coupling interface connected to the primary storage tank to supply fluid to the horizontal movement unit upon docking

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This invention was developed with support from the Korea Agency for Infrastructure Technology Advancement for the development of intelligent robot systems for high-rise building exterior maintenance.