Vacuum circuit breaker
A technology of vacuum circuit breaker and vacuum interrupter, which is applied to high-voltage air circuit breakers, circuits, electrical components, etc., can solve the problems of delay in working hours and waste of capital costs.
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Embodiment 1
[0017] As shown in the figure, the vacuum circuit breaker of the present invention includes a housing 1 and a vacuum interrupter 2 arranged in the housing. The upper end of the vacuum interrupter 2 has a conductive plate 3 for conductive connection with the static contact. The moving contact at the lower end of the vacuum interrupter is connected to the push rod 4 located outside the housing through the moving contact part. The lower part of the push rod 4 has a drive plate 5 arranged perpendicular to the push rod, and one end of the drive plate 5 is installed on a fulcrum. And make the drive plate 5 swing around the fulcrum, the drive plate 5 upper end is provided with a hemispherical upper groove 6, the upper groove 6 is provided with a wear-resistant block 7 that cooperates with the upper groove 6, and the wear-resistant block 7 center is provided with For the central hole that the push rod passes through, a compression spring 8 is pressed between the drive plate 5 and the s...
Embodiment 2
[0020] As shown in the figure, the difference between this embodiment and Embodiment 1 is that the arc-shaped groove is a lower groove 12 of a hemispherical structure arranged on the rear end surface of the driving plate 5, and the wear-resistant block 5 and the limit nut 10 are installed in the upper concave groove respectively. In the groove 6 and the lower groove 12, this integral structure is easy to install and has better reliability.
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