Elevator entrance protection device efficient to use

The utility model discloses an efficient elevator entrance protection device, which relates to the technical field of building construction protection devices and comprises a protection fence, support beams are arranged on two sides of the protection fence in a sliding manner, and two push rods fixed with the two support beams respectively are arranged in the protection fence in a sliding manner. A driving mechanism for driving the two push rods to move synchronously is arranged in the protective fence; a plurality of cross beams are fixed on the supporting beam, ejector rods are elastically arranged in the middles of the cross beams, clamping plates are slidably arranged on two sides of the cross beams, and synchronizing mechanisms for driving the clamping plates and the ejector rods to slide synchronously are arranged on the cross beams. The elevator hole protection device is reliable in use, adapts to clamping of walls with different thicknesses, and can clamp an elevator hole through the ejector rod and t