Screen mesh tightening tool of vibrating screen

The utility model discloses a screen mesh tightening tool of a vibrating screen, which is used for solving the problem that the tightening degree is not enough when the screen mesh of the vibrating screen is replaced, and comprises a bracket, a platform and a pressing device, two platforms are oppositely fixed to the top end of the support, the opposite side faces of the two platforms are arc-shaped faces, the arc-shaped faces are matched with a frame of the vibrating screen in shape, at least two downward pressing devices are fixed to each platform, and the downward pressing devices are arranged in the circumferential direction of the frame of the vibrating screen. The downward pressing device comprises a supporting seat, a threaded sleeve, a threaded rod and a pressing head, the threaded sleeve is fixed to the middle of the supporting seat, the vertically-arranged threaded rod is connected into the threaded sleeve in a threaded mode, a handle is fixed to the top end of the threaded rod, the pressing head is