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公开(公告)号:EP3699467A1
公开(公告)日:2020-08-26
申请号:EP20158402.6
申请日:2020-02-20
IPC分类号: F16K31/122 , F15B15/08 , F15B15/14 , F15B15/28 , F16K31/143 , F16K37/00
摘要: Fluidic actuator for a valve (50) or similar device, comprising:
a housing (2) provided with a side wall (2a), a lower wall (2b) and an upper wall (2c);
- a piston movable within said housing (2) and provided with a head (3a) and a rod (3b);
- elastic return means (7) of the piston, which are functionally interposed between said head (3a) of said piston and a wall of said housing (2);
- a plate (8) constrained to said piston so that to translate integrally to said piston, and arranged in the proximity of said side wall (2a) of said housing (2);
- an indicator (9) of the position of the piston comprising a rotatable body rotatably constrained to said side wall (2a) of said housing (2) around a rotation axis and provided with a signaling portion at least visible outside of said housing (2) and with a protrusion (9a) of said rotatable body, the protrusion (9a) being arranged in an eccentric manner with respect to the rotation axis of the same rotatable body and arranged inside said housing (2);
wherein said plate (8) comprises a cam profile and wherein said protrusion (9a) couples to said cam profile in order to make a cam-follower coupling such that the movement of the piston and the plate (8) in said housing (2) results in the at least rotating movement of said protrusion (9a) and, therefore, in the rotation of said rotatable body of said position indicator (9).