Foundation reinforcing device

The invention discloses a foundation reinforcing device which comprises a counter-force bearing platform, a foundation reinforcing device and a foundation reinforcing device. The reinforcing pile is arranged in the counter-force bearing platform in a penetrating manner; the counter-force frame is arranged on the counter-force bearing platform, and top teeth are arranged on the counter-force frame; the movable cross beam is arranged on the reaction frame and can move in the height direction of the reaction frame; the fixed cross beam is arranged at the top of the reaction frame, and a bolt is arranged on the fixed cross beam; the jack is arranged at the top of the movable cross beam, one end of the jack penetrates through the movable cross beam, and the other end of the jack abuts against the reinforcing pile; the transmission assembly is arranged on the movable cross beam; the movable plate is arranged on the movable cross beam, and under the condition that the movable cross beam descends, the movable plate i