Gas-collecting hood facilitating maintenance of fireproof air brake

Abstract

The gas-collecting hood comprises a gas-collecting hood body, an air outlet of the gas-collecting hood body is connected with the fireproof air brake, and a maintenance structure is arranged on the gas-collecting hood body and close to the fireproof air brake. The overhauling structure comprises an overhauling opening, an overhauling door and a hinge, the overhauling opening is formed in the gas collecting hood body and is close to the fireproof air brake, and the overhauling door is connected to the overhauling opening through the hinge in an opening and closing mode. The mode that the access hole is formed in the gas-collecting hood body and the access door is installed is adopted, the access hole is formed in the position close to the fireproof air brake, opening and closing connection of the access door is achieved through the hinge, and the purposes of observing the fireproof air brake in a short distance and manually overhauling the fireproof air brake are achieved; therefore, the technical effects of convenience and efficiency improvement in the overhauling process are achieved, and the technical problem that in the prior art, due to the fact that the position of an overhauling opening is remote, a fireproof air brake cannot be observed at a short distance and overhauled manually is solved.

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