Kerf cover plate with locking function

The utility model relates to a kerf cover plate with a locking function, which is applied to a workbench surface of a bench saw, comprises a cover plate main body, and is characterized in that one endof the cover plate main body is provided with a locking mechanism; the locking mechanism comprises a mounting seat which is static relative to the cover plate main body, an elastic telescopic piece which is arranged on the mounting seat and is telescopic in the axial direction of the cover plate main body, and a locking piece which is arranged on the mounting seat and abuts against the telescopicend of the elastic telescopic piece; and the operating piece is arranged on the cover plate main body and is used for driving the locking piece to retract inwards and translate towards the elastic telescopic piece. The relative position of the locking piece is changed through the elastic stretching and retracting and the elastic reset performance of the spring, so that the locking piece can be clamped with the correspondi