Bottom plate force transmission key

The utility model discloses a bottom plate force transmission key, a plurality of first connecting parts are arranged, one end, close to a prefabricated bottom plate, of each first connecting part is provided with a thread part, and the plurality of thread parts are used for being inserted into the prefabricated bottom plate so that the bottom plate force transmission key can be fixedly connected with the prefabricated bottom plate. The ends, away from the prefabricated bottom plate, of the first connecting parts are all connected with the fixing plate, the fixing plate is fixedly connected with the underground diaphragm wall, and therefore the underground diaphragm wall and the prefabricated bottom plate are effectively connected together, the overall stability of the station structure is guaranteed, and then the construction safety of the assembly type subway station is effectively guaranteed. 本实用新型公开了一种底板传力键，第一连接部设置有多个，每个第一连接部靠近预制底板的这一端均设置有螺纹部，多个螺纹部用于插入预制底板内，以使得底板传力键能够与预制底板固定连接，而且，多个第一连接部远离预制底板的这一端均与固定板连接，