Simple-structure ball valve with self-lubricating block

• Main Author: HU HUIJUAN
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2018
• 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 simple-structure ball valve with a self-lubricating block. The simple-structure ball valve with the self-lubricating block comprises a valve body, wherein a liquid outlet pipe is formed at the right end of the valve body; a liquid inlet pipe is fixedly connected to the left end surface of the valve body through a bolt; a right sealing ring body is nested and fixed onto the right end of an inner cavity of the valve body; a left sealing ring body is nested to the left end of the inner cavity of the valve body; a spherical valve element is located between the left sealing ring body and the right sealing ring body; an outer wall of the left end of the spherical valve element presses against the inner wall surface of an arc-shaped groove formed in the inner end of a right side wall of the left sealing ring body; and an outer wall of the right end of the spherical valve element presses against the inner wall surface of an arc-shaped groove formed in the inner end ofa left side wall of the