Bidirectional-acting remote trigger type elevator speed governor

The invention discloses a bidirectional-acting remote trigger type elevator speed governor which comprises a rope wheel, a bearing seat and placement sleeves. A limiting groove is formed in the surface of the rope wheel, a flexible layer is arranged on the inner side wall of the limiting groove, arc-shaped plates are in threaded connection with the two sides of the surface of the rope wheel correspondingly, pressing blocks are connected to the inner side walls of the arc-shaped plates through elastic springs, pressing plates are connected to the inner top walls of the arc-shaped plates through elastic springs, and cleaning brushes are arranged on the inner side walls of the pressing blocks and the inner side walls of the pressing plates. According to the bidirectional-acting remote trigger type elevator speed governor provided by the invention, through the arrangement of the limiting groove and the cleaning brushes, a steel wire rope can be tightly attached to the flexible layer arranged on the inner wall of