公开(公告)号：US3846600A

公开(公告)日：1974-11-05

申请号：US40878773

申请日：1973-10-23

申请人： EATON CORP

发明人： KOLZE L ,  JONES W

IPC分类号： H01H35/26 ,  H01H35/34 ,  H01H1/34

CPC分类号： H01H35/2614

摘要： A simplified calibration mechanism is provided for a pressure switch using an adjustable, spring-biased plunger arrangement for controlling the trip force and hence the pressure to which the switch responds. The mechanism includes an especially configured lever pivoted at one end, contacting an especially shaped cam as a follower at its other end and the plunger at its mid portion. First calibration means are provided in the lever''s pivoted end to adjust the normal low-high pressure settings of the switch. Second calibration means are provided to isolate the lever and cam from the plunger for effecting a precise setting of the pressure switch at extra-low pressures.

摘要翻译： 为使用可调节的弹簧偏置柱塞装置的压力开关提供简化的校准机构，用于控制跳闸力，并因此控制开关响应的压力。 该机构包括在一端枢转的特别配置的杆，在其另一端处接触作为随动件的特殊形状的凸轮，并在其中部接触柱塞。 第一个校准装置设置在杠杆的枢转端，以调节开关的正常低压设置。 提供第二校准装置以将杠杆和凸轮与柱塞隔离，以便在超低压下精确地设定压力开关。