Self-lubricating block ball valve with high precision adjustment

• Main Author: HU HUIJUAN
• Format: Patent
• Language: Chinese; English
• Published: 27.11.2018
• 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 invention discloses a self-lubricating block ball valve with high precision adjustment. The valve comprises a valve body, a right sealing ring body is nested and fixed to the right end of an innercavity of the valve body, the left end of an inner cavity of the valve body is nested with a left sealing ring body, a spherical valve core is arranged between the left sealing ring body and the right sealing ring body, wherein a flow hole extending through the left and right sides is formed in the spherical valve core; a rectangular concave hole is formed in the middle of the top end of the spherical valve core, a fixing block is inserted into the rectangular concave hole, a rotating rod is fixed to the top surface of the fixing block, and the rotating rod is inserted into a middle through hole of an upper self-lubricating block. The valve has simple structure and convenient manufacture, and adopts a non-fixed connection between the rotating rod and the spherical valve core, so that theinstallation and disassemb