High-sealing-performance butterfly valve with damping function

The utility model provides a high sealing butterfly valve with a damping function, which comprises a valve body, two first sliding chutes and two second sliding chutes are arranged on the inner wall of the valve body, the two first sliding chutes and the two second sliding chutes are respectively distributed at four corners of the inner wall of the valve body, and an included angle of 90 degrees is formed between each first sliding chute and each second sliding chute. A buffering assembly is slidably connected to the inner wall of the valve body and comprises a limiting plate sliding on the inner wall of the valve body, the end, away from the valve element of the valve body, of the limiting plate is in a wedge shape, the limiting plate is integrally formed, and first sliding blocks sliding on the inner walls of the second sliding grooves are fixed to the upper end and the lower end of the limiting plate. The butterfly valve with the high sealing performance has the effects of buffering water flow and reducing