A pole-mounted circuit breaker with opening buffer

Abstract

The utility model relates to the field of pole circuit breaker, concretely relates to a pole circuit breaker is with opening and closing buffer device, including the middle oil buffer and rubber buffer of installation in the pole circuit breaker box body inside, the buffer baffle that is provided with with the middle oil buffer impact on the main shaft, the side oil buffer that is provided with with the buffer baffle impact on the side of middle oil buffer, the horizontal pull mechanism is fixedly arranged in the box body, this pole circuit breaker is with opening and closing buffer device, through setting up the side oil buffer, can improve the buffer effect to the main shaft, and according to the main shaft of different speed, then need different buffer resistance, and in order to avoid the middle oil buffer to be pressed and explode and lead to the phenomenon of oil leakage, then can pass through the horizontal pull mechanism and adjust the position of two side oil buffers, to improve the buffer effect. Rubber buffer includes the rubber washer and the metal washer of multiple pieces of interlaced stacking, through this structure design, under the premise of guaranteeing hardness, can guarantee rubber buffer effect again.

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