Valve actuator

Abstract

A valve actuator includes a support body, an operating member and a locking member. The support body is provided with a plurality of locking structures. The plurality of locking structures are distributed in a circumferential direction, with an axis surrounded by the circumferential direction being defined as a first axis. The operating member is rotatably connected to the support body about the first axis. The locking member is movably connected to the operating member. The operating member can rotate relative to the support body to a plurality of locked positions. Each locked position corresponds to one of the locking structures. When the operating member is in the locked position, the locking member can move relative to the operating member to engage with the corresponding locking structure to prevent the operating member from rotating relative to the support body. The valve actuator can enable locking and unlocking of the operating member.

Dependencies are inferred from the claim text.