Multi-section adjustment indicating device for control valve

• Main Authors: HU JIANSHENG, HUO DAWEN, CHEN JIONGLIANG, YANG ZHENG'AN, OU JIAXIAN
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2022
• 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 multi-section adjusting indicating device for a control valve, which comprises a valve, the valve comprises a valve core, a water inlet cavity and a water outlet cavity, the valve core is arranged at the joint of the water inlet cavity and the water outlet cavity, a valve rod for pushing the valve core is arranged on the valve core, an indicating rod is connected onto the valve rod, the indicating rod extends out of the valve, and an indicator is arranged on the indicating rod. One end of the indicator is connected with a pull rope displacement sensor, the other end of the indicator is provided with a full-open point contact switch and a full-close point contact switch, the pull rope displacement sensor, the full-open point contact switch and the full-close point contact switch are all fixed to the valve, displacement of the indicator changes along with changes of the opening degree of the valve element, and position information of the indicator corresponds to the opening degree