A three-position isolating switch

A technology of isolating switch and three-station, applied in the direction of air switch components, etc., can solve the problem that the operation reliability affects the operation safety of the isolating switch, the operation reliability and maintenance performance need to be improved, and the service life of the knife switch and static contact is reduced and other problems, to achieve the effect of good action reliability, simple structure, and simple electric operation
CN103985591BActive Publication Date: 2016-02-10XIAMEN XEC ELECTRIC
1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
XIAMEN XEC ELECTRIC
Publication Date
2016-02-10

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a three-station isolating switch which comprises a rack, disconnecting links, fixed contacts, grounding contacts and an operating mechanism. The rack is connected with a rotating shaft in a pivotal mode, and the rotating shaft drives the disconnecting links to rotate through first connecting levers and insulating pull rods. The operating mechanism comprises a shell, the shell is connected with a first operating shaft and a second operating shaft in a pivotal mode, and the first operating shaft is fixedly connected with the rotating shaft. The first operating shaft is fixedly connected with a first gear and an isolating limiting plate. The isolating limiting plate is provided with a first positioning hinge pin in a penetrating mode, and the two ends of the first position hinge pin are connected with the first operating shaft through two tension springs. The shell is provided with a switching-on groove, a switching-off groove and grounding grooves which are matched with the first positioning hinge pin. The second operating shaft is fixedly connected with a second gear and a connecting lever, wherein the connecting lever is connected with the shell through a second positioning hinge pin and a compression spring. The shell is provided with a second arc hole which is matched with the second positioning hinge pin. The second gear is not matched with the first gear in a switching-on state and a switching-off state and is matched with the first gear in a grounding state. The three-station isolating switch is compact in structure, reliable in action and convenient to maintain.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a three-position isolating switch. Background technique

[0002] In the power distribution system, the three-position isolating switch is usually used in the switch cabinet. The three-position isolating switch refers to the isolating switch that can realize the three functions of closing, opening and grounding. In the structure of the isolating switch, the three functions of closing, opening and grounding are realized through the rotation of the knife switch. Usually, one end of the knife switch is connected to the static contact of the isolating switch, and the rotation of the knife switch is completed by an operating mechanism. , The operational reliability of the operating mechanism directly affects the performance and operational safety of the isolating switch. At the same time, the operating mechanism is the place where failures often occur in the three-position isolating switch. The maintenance performance of the operatin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More