Flow-regulating all-welded ball valve

• Main Authors: TANG XIAOXIA, XU ZHONGPU, WANG HAILE
• Format: Patent
• Language: Chinese; English
• Published: 12.01.2021
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The utility model discloses a flow-regulating all-welded ball valve, which relates to the technical field of ball valve manufacture and comprises a ball valve shell, a ball body and a valve rod, the middle part of the ball valve shell is spherical, the upper end of the middle part of the ball valve shell is fixedly connected with a shaft sleeve, the ball body is arranged in the ball valve shell, and the valve rod is arranged above the ball body. The side face of the valve rod is slidably connected with the inner side wall of the shaft sleeve, a plurality of rows of through grooves are formed in the ball body, rectangular blind holes are formed in the top end of the ball body in the vertical direction, the through grooves penetrate through the ball body in the horizontal direction, and thethrough grooves close to the middle of the ball body are larger than the through grooves far away from the middle of the ball body. A sliding block is connected to the inner side wall of the rectangular blind hole in a slidin