Device for efficiently disassembling and assembling valve spring

The utility model discloses a device for efficiently disassembling and assembling a valve spring. The device comprises a pressing plate, a support, a first threaded connecting piece, a second threaded connecting piece and a compression bolt. The pressing plate comprises a square plate body, a column body is arranged in the middle of the upper end of the square plate body, a positioning hole is formed in the center of the column body, four pressing grooves corresponding to valve springs in position are formed in the square plate body, and a first through hole corresponding to an oil sprayer in position is formed in one side of the column body. The support is of an L-shaped structure, a first open groove and a second open groove are formed in the two sides of the support respectively, a first threaded hole is formed in the support, and the first threaded hole corresponds to the positioning hole in position. The efficient valve spring dismounting and mounting device is suitable for dismounting and mounting a val