Fire-Extinguishing Trash Can

Two-Stage Automatic Fire-Extinguishing Trash Can Using Heat-Fusible Closure and Dropping Container

This technology features a fire-suppressing trash can with a container of dry chemical extinguishing agent installed in the upper interior of the body, which has a side intake. A temporary closure blocking the container's bottom holes at room temperature melts when exposed to fire heat, releasing the agent onto the fire.

Public trash cans in areas like roadsides and parks often receive waste with smoldering embers, such as cigarette butts, which can ignite flammable items like paper or cause fires during hot weather. Outdoor trash cans lack proper fire suppression, leading to delayed response times, toxic gas emissions, and unsightly damage to the bins.

This technology first releases dry chemical agent through holes, then a heat-fusible adhesive melts, causing the container to drop onto the fire while its outer wings seal against the inner walls to cut off oxygen. The container's bottom is a downward-tapering polyhedron to maximize storage and hole area. It can also integrate stored-pressure or gas-pressure extinguishers. Suitable for public bins, smoking area receptacles, and indoor recycling bins, it suppresses fires autonomously without power or sensors.

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Key Features:

• A trash can body with a side intake and a container installed in the upper interior to hold dry chemical extinguishing agent
• Temporary closure means provided inside multiple bottom holes of the container to seal it at room temperature and release the agent upon melting from fire heat
• A container bottom shaped as at least one polyhedron tapering in the direction of gravity to increase agent storage and hole surface area
• Heat-fusible adhesive that melts during a fire to drop the container, and wings protruding from the container's outer edge to block oxygen supply

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