The utility model discloses a
wellhead anti-falling device, which relates to the field of
wellhead protection, and comprises a fixed support and a movable cover plate, the fixed support is pre-buried at a position 50cm below a
wellhead, the top surface of the fixed support is provided with a mounting groove for mounting the movable cover plate, one end of the mounting groove is provided with a circular hole, and the other end of the mounting groove is provided with a through hole. The circular hole penetrates through the upper face and the
lower face of the fixed support, the movable cover plate is of a circular structure, and a plurality of
water leakage holes are formed in the middle of the movable cover plate. The movable cover plate is slidably mounted in the fixed support, so that the movable cover plate is slidably contracted and placed, and the fixed support is pre-buried at the position 0-50 cm below a wellhead, so that the movable cover plate secondarily shields the wellhead and is used for bearing people falling into the wellhead, and a dual-protection function is realized; people falling into the well mouth are prevented from falling to the bottom of the well mouth, self-rescue or
rescue work can be conveniently carried out, and the safety of well mouth facilities is greatly improved.