16-12-2015 дата публикации
Номер: CN0204884992U
Принадлежит:
The utility model discloses a three station switching device, including three -workers' bit switch, operating device and connecting elements, three -workers' bit switch includes static contact and moving contact, the connecting elements is including output turning arm, connecting rod and input turning arm, both ends difference hinge in the moving contact and the connecting rod of output turning arm, both ends difference hinge in the operating device and the connecting rod of input turning arm, connecting rod upper link point's line is first line, and input turning arm upper link point's line is the second line, moving contact motion to first line and second line coincide, can continue motion to first line and second line and alternately accomplish the combined floodgate. Can't move behind the combined floodgate and cross the position of first line and the coincidence of second line, avoid moving contact and static contact separation, improve the security. During the separating brake, the ...
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