Plunger type control valve moving part connection structure

• Main Authors: WANG SANXI, XIA CHENGRUI, WANG ZHONGJIE, WANG XUEFENG, ZHANG CHONGGANG, ZHANG BUHUAN, XIA CHONGMAO, DING SHAOCHUN, LI QIFANG
• Format: Patent
• Language: English
• Published: 09.12.2015
• 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 provides a plunger type control valve moving part connection structure, includes the valve rod of last end screw thread connection case, has an adapter sleeve at the lower part of valve rod cover, and the internal surface of this adapter sleeve tightly touches the valve rod surface, and both can not the relative rotation, and the surface of adapter sleeve is the taper surface, partial admission valve in -core close -fitting, adapter sleeve and case equally can not the relative rotations. The utility model discloses an it is rational in infrastructure, adopt the adapter sleeve can produce enough frictional force, can guarantee that the case valve rod can not the relative rotation, the threaded connection position is not destroyed, and joint strength is well reliably. The cone combined with of adapter sleeve and case has and suffers from one's own actions positive function, keeps the axiality of case valve rod. The adapter sleeve can also adopt the material producing the same with the valve rod case, and it is high to connect the reliability. And, adopt the adapter sleeve to make the assembly of case valve rod and dismantle and simplify, easy to operate, the convenient maintenance is changed.