▎ 摘　　要

NOVELTY - The utility model claims a new fire-proof sealing rubber strip with graphene expansion strip, comprising a rubber strip structure, a fire-proof layer, an expansion structure and a buffer structure, the rubber strip structure comprises a sealing rubber strip main body, a mounting block and a sealing strip, the mounting block is installed at the central position of the bottom of the sealing rubber strip main body, the sealing strip is installed at the two ends of the mounting block, the fireproof layer is sprayed on the outer side of the adhesive tape structure, the graphite propylene powder and the expansion sheet filled in the inner cavity of the expansion sheet and the bottom plate are heated to expand when the fire is encountered, and filling the inner cavity of the sealing rubber strip main body, realizing the expansion of the sealing rubber strip main body, increasing the sealing performance, the fireproof layer can increase the fireproof performance, the sealing strip is made of rubber material, it can generate deformation, the sealing strip and the mounting block can be limited by the buffer structure, when mounting the different mounting grooves, the sealing strip can be clamped with the mounting operation of different sizes, compared with the previous need to produce different sizes of operation according to the mounting groove, it can reduce the production cost.