Fire-fighting fireproof coiled material expansion ratio detection device

Abstract

The invention provides a fire-fighting fireproof coiled material expansion ratio detection device. The device comprises a vertical plate and an open cylinder cover, and a first annular plate and a second annular plate are fixed at the right end of the vertical plate; an annular support plate is fixed at the right end of the first annular plate; a second gas pipe and a first gas pipe are fixed at the left end of the vertical plate; the second gas pipe penetrates through the vertical plate and is communicated with a gap between the first annular plate and the second annular plate; the first gaspipe penetrates through the vertical plate and communicates with the interior of the second annular plate; at least two vent holes are formed in the annular supporting plate; the at least two vent holes are aligned with a gap between the second annular plate and the first annular plate; the transparent cylinder cover is detachably installed at the right end of the annular supporting plate, a circular baffle is installed on the left wall in the transparent cylinder cover through two first springs, and a recording assembly used for recording expansion data in real time in the heating process ofthe fireproof coiled material is fixed to the right end of the circular baffle.

Description

technical field [0001] The invention relates to a detection device for the expansion rate of a fireproof coiled material for fire protection, which belongs to the technical field of detection. Background technique [0002] Fire doors refer to doors that can meet the requirements of fire resistance stability, integrity and heat insulation within a certain period of time. In addition to the function of ordinary doors, it also has the function of preventing the spread of fire and smoke diffusion. It can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel. The fireproof coil is a circle around the fireproof door, which expands after being heated. The material that is used to seal the periphery of the door, before mass production, it is necessary to test whether the fireproof coil meets the safety standard before it can be mass-produced, so a fireproof coil expansion ratio detection device is needed. [0003] Chinese Patent Publicati...

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