Plastic sealing strip

The utility model discloses a plastic sealing strip which comprises a lock plate and a lock strip, a lock shell is arranged on the lock plate, a lock cylinder is arranged in the lock shell, an insertion port is formed in the lower end of the lock shell, the right end of the lock strip is connected with the lock plate, an annular protrusion is arranged at the left end of the lock strip, a mushroom-head-shaped insertion body is arranged at the end portion of the left end of the lock strip, and the diameter of the annular protrusion is larger than that of the insertion port. The distance between the left end face of the annular protrusion and the left end of the insertion body is smaller than the height of the lock shell. By the adoption of the technical scheme, the inserting body is arranged to be in the mushroom head shape, the inserting body can be conveniently inserted into the lock shell, and the diameter of the annular protrusion is controlled to be larger than that of the inserting port, and the distance