Movable jaw plate tensioning device of jaw crusher

The utility model discloses a movable jaw plate tensioning device of a jaw crusher, which comprises a platform which is made of a rectangular plate. The two fixed integrated blocks are arranged on the two sides of the platform surface respectively; the two guide shafts are arranged on the front side and the rear side between the adjacent end faces of the two fixed integrated blocks respectively. The movable integrated blocks are arranged on the left side and the right side of the shaft rod of the guide shaft in a sliding mode respectively; the two tensioning plates are respectively arranged on the upper sides of the two movable integrated blocks; the embossing hand wheel is rotated to control the rotating rods to adjust the positions of the movable integrated blocks, the tensioning plates on the two movable integrated blocks conduct tensioning operation on the preset fixed jaw plate and the movable jaw plate, one person can independently complete operation, a worker does not need to be supported by hands, the