Multifunctional caulking sealing element

The multifunctional caulking sealing element comprises a metal curtain wall, a fixed cover plate, a sealing element body and a pressing plate, corner profiles are fixed to the two sides of the metal curtain wall respectively, the pressing plate is fixed to a wall through a fastener, the side face of the pressing plate is pressed on inner fixing square pipes on the inner sides of the corner profiles, and the inner fixing square pipes are fixed to the two sides of the metal curtain wall. A middle square tube is arranged in the middle of the corner sectional material, a fixing groove is formed inthe front end of the middle square tube, a sealing strip is installed in the fixing groove, an outer fixing square tube is fixed to the outer side of the corner sectional material, a sealing piece isinstalled between the fixing cover plate and the inner fixing square tube, the sealing piece comprises a supporting plate and anti-skid hooks, and the anti-skid hooks are fixed to the two side facesof the supporting plate. Ac