High-pressure wear-resistant ball valve with high hardness and use method thereof

The invention relates to the technical field of valve equipment, and discloses a high-pressure wear-resistant ball valve with high hardness and a using method of the high-pressure wear-resistant ball valve. The sealing assembly is used for sealing the interior of the ball valve. The transmission assembly is used for transmitting the sealing assembly in the ball valve when the ball valve is opened and closed; a buffer assembly; the buffering assembly is used for buffering the inner wall of the valve body and pipelines connected with the two sides of the valve body when the ball valve is closed. When the connecting rod is rotated, the connecting rod moves upwards or downwards while rotating, the supporting piece cancels supporting on the mounting rod, the first spring pulls the mounting block to move, the mounting block pulls the connecting rope, the sealing pieces are pulled through the connecting rope to be separated from the outer wall of the valve ball, and when the valve ball is adjusted, the sealing piece