Device for preventing lift car of construction hoist from rushing to top

The utility model discloses an anti-top-rushing device for a building hoist car, relates to the technical field of anti-top-rushing of a hoist car, solves the problem that the building hoist car possibly rushes to the top in long-time use, and comprises a lifting rack, a driving wheel disc is arranged at the top of the lifting rack, and a driving machine is arranged on one side of the driving wheel disc; a lifting rope is arranged on the outer wall of the driving wheel disc, a car body is arranged at one end of the lifting rope, a connecting clamp is arranged on the outer wall of the lifting rope and located at the top of the car body, a storage groove is formed in the upper surface of the connecting clamp, a travel switch is arranged in the storage groove, and a limiting rod is connected into the lifting rack through a screw. When the lift car is used, when the lift car body rushes to the top and ascends to a certain position, the travel switch touches the limiting rod, the lift car body can stop suddenly, a