Press plate for packing gland of valve

The utility model provides a press plate for a packing gland of a valve, and relates to a press plate, in particular to a press plate for extruding a packing gland. The utility model aims at providing the press plate for the packing gland of the valve with the advantages that the structure is simple, the cost is low, the operation is simple and convenient, and the system shutdown is not needed during a replacement process. The press plate for the packing gland of the valve comprises a main plate and a sub plate, an upper U-shaped hole is a reverse U-shaped hole, the radius at the round angle part of the upper U-shaped hole is r, the upper U-shaped hole is used for fixing an output part of a pushing and pressing device, the lower side of the upper U-shaped hole is communicated with a U-shaped hole of a valve rod, the U-shaped hole of the valve rod is a reverse U-shaped hole, the U-shaped hole of the valve rod is in clearance fit with the valve rod, the radius of the round angle part of the U-shaped hole of the valve rod is R, the R is greater than the r, and the U-shaped hole of the valve rod runs through to the lower end of the main plate. The sub plate comprises a lower hole and baffle plates, the middle part of the sub plate is provided with the lower hole, the diameter of the lower hole is smaller than the R, the lower hole is used for fixing the output part of the pushing and pressing device, the left side and the right side of the sub plate are provided with the baffle plates, and the baffle plates are used for clamping the left side and the right side of the main plate.