Switch-on holding and tripping device of vacuum circuit breaker employing two-stage semi-shaft force reduction

Switch-on holding and tripping device of vacuum circuit breaker employing two-stage semi-shaft force reduction

CN
  • CN 201,196,929 Y
  • Filed: 05/28/2008
  • Issued: 02/18/2009
  • Est. Priority Date: 05/28/2008
  • Status: Active Grant
First Claim
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1. one kind is adopted the combined floodgate of the vacuum circuit-breaker that the secondary semiaxis subtracts power to keep and tripping mechanism, comprises pawl (5), one-level semiaxis (3), secondary semiaxis (1), reduction torsion spring (2), back-moving spring (6).It is characterized in that:

  • pawl (5) remains on the one-level semiaxis (3), and one-level semiaxis (3) is remaining under the effect of back-moving spring (6) on the secondary semiaxis (1), and secondary semiaxis (1) is reliable the maintenance under reduction torsion spring (2) effect.

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