Rotationally opening and closing liquid pipeline valve

The utility model discloses a rotationally opening and closing liquid pipeline valve. The rotationally opening and closing liquid pipeline valve comprises a valve sleeve, a valve plate and a valve rod, wherein two open holes for the two ends of the valve rod to penetrate through are formed in the valve sleeve, two fixing bases are installed on the valve plate, a circular hole with the same diameter as that of the valve rod is formed on each of the fixing bases, the valve rod penetrates through the circular holes and passes through the circular center of the valve plate, the valve rod is welded and fixed to the fixing bases, one end of the valve rod penetrates through the open hole of the valve sleeve and is locked with an external sheath, and the other end of the valve rod penetrates out of the circular holes and a shaft sleeve of the valve sleeve. The valve rod is fixed to the valve plate, and the valve plate is driven to rotate by taking the valve rod as a rotating shaft through rotation of the valve rod, a