Bridge pile foundation protection device

The utility model relates to the technical field of bridge pile foundation protection devices, and discloses a bridge pile foundation protection device which comprises two sets of arc-shaped bases, arc-shaped clamping plates are fixedly installed on the tops of the two sets of arc-shaped bases, and arc-shaped sleeve plates are movably installed on the tops of the two sets of arc-shaped clamping plates. And two groups of fixed pyramids are fixedly mounted at the bottoms of the two groups of arc-shaped bases. After the device is connected to the bridge pile foundation in a sleeving mode, the arc-shaped clamping plates and the arc-shaped sleeve plates are connected to the surface of the bridge pile foundation in a sleeving mode through connection of the limiting lead screws, and when the protection clamping plates are extruded by external force, the positions of the buffering clamping plates can be adjusted in a sliding mode so that the buffering clamping plates can be attached to the surface of the bridge pile