Locking device for breaker electric operation mechanism
A technology of electric operating mechanism and locking device, which is applied in the direction of protection switch operation/release mechanism, power device inside the switch, contact operating parts, etc., and can solve problems such as lack of
Active Publication Date: 2007-01-24
CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
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- Application Information
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Problems solved by technology
However, the existing circuit breaker electric operating mechanism does not have a structure that can guarantee the above functions.
Method used
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Embodiment Construction
[0021] Such as figure 1 The first manual operation hole 11, the sliding port 12, and the observation hole 13 are provided on the casing 1 without distinction from the prior art. The manual operation hole 11 is for the manual key 7 to be passed through the circuit breaker operating mechanism when it is in a manual working state. Hole and the second manual operation hole 31 on the slide block 3 (as figure 2 shown) is inserted into the manual jack 22 at the top of the transmission shaft 2, so as to artificially operate the transmission shaft 2 manually. The sliding port 12 is used for the button 4 to carry the slider 3 to translate left and right to provide a path or channel. As shown in the figure, there are manual, automatic, and locked Chinese prompt information marked from left to right at the sliding port 12, but in the prior art, because the operating mechanism does not have a locking function, only manual, automatic, and of course manual are marked. , Automatic, and loc...
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This invention relates to a locking device for electromotive operation unit of a breaker including a trip button, a signal switch, a first manual operating hole, a sliding port, a shell of a watching window, a color mark indication disk, a sliding block and a button connected to the block at the sliding port, the locking device includes a stopper set along the edge of the color mark indication disk, a second manual operating hole on the sliding block, a locking hole, a holding pin fixing hole and a holding pin under the button. Advantage: when the breaker is at the closing state, the block stops the holding pin and the locking hole of the sliding block cannot protrude over the side of the shell, namely, the operation unit of the breaker can't be blocked, when the breaker is at the tripped state, the pin is not stopped by the block and the sliding block can move along the groove right and left laterally, the locking hole can protrude over the side of the shell to lock it on the hole by a lock.
Description
technical field [0001] The invention relates to a locking device of an electric operating mechanism of a circuit breaker, belonging to the technical field of low-voltage switch accessories. Background technique: [0002] The existing circuit breaker electric operating mechanism, such as the device disclosed in the invention patent with the Chinese patent authorization announcement number CN1138289C, includes upper and lower mounting brackets, the upper bracket is equipped with a motor, and the output shaft of the motor passes through the upper bracket and the upper and lower brackets. The internal reduction transmission gears at all levels mesh, and the final stage transmission gear meshes with the executive gear installed on the main drive shaft. During automatic operation, the motor drives the main transmission shaft through the transmission gears and executive gears at all levels, and automatically operates the circuit breaker to close, open and re-buckle. The clutch dev...
Claims
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IPC IPC(8): H01H3/20H01H3/26H01H9/16H01H71/70H01H71/04
Inventor 徐晓峰陈建红黄剑
Owner CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)