Valve anti-staggering safety device

• Main Authors: LU YI, JIANG SHINAN, DONG YUNHAI, SUN QIULI, YUE LIPING, ZHANG LEI, LI DANDAN, SUN GUOCAI, QIAO BEIBEI, HU SHUAI
• Format: Patent
• Language: Chinese; English
• Published: 06.11.2020
• 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 an anti-staggering safety device for a valve. The anti-staggering safety device comprises a valve shaft fixing piece, a sleeve and a limiting assembly, the valve shaft fixing piece is of a half-and-half structure and locks the valve shaft after butt joint. The sleeve is of a half-and-half structure and is arranged on the periphery of the valve shaft fixing piece in a sleeving mode after butt joint, and meanwhile the end is opened to lock the valve body. The limiting assembly is installed on the sleeve and clamped with the outer circumferential face of the valve shaftfixing piece after moving in the radial direction, so that rotation of the valve shaft fixing piece is limited, and locking is completed. The valve can be effectively prevented from being staggered. 本实用新型提供了一种阀门防错开保险装置，包括阀门轴固定件、套筒及限位组件；阀门轴固定件为对半式结构，对接后锁定阀门轴；所述套筒为对半式结构，对接后套装在阀门轴固定件外围，同时端部开口锁定阀体；所述限位组件安装在套筒上，限位组件径向移动后与阀门轴固定件外圆周面卡合，从而限制阀门轴固定件的转动完成锁定。本实用新型能够有效防止阀门错开。