Circuit breaker anti-mis-closing interlock mechanism
A technology of interlock mechanism and circuit breaker, which is applied in the direction of circuits, electrical components, electric switches, etc., can solve the problems of unreliable closing or opening operation of circuit breakers, complex anti-misoperation closing mechanism, and large number of parts, etc. Achieve the effect of accurate and reliable mechanism interlocking, low manufacturing process cost and high production efficiency
Active Publication Date: 2018-07-17
镇江大全智能电气有限公司
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Problems solved by technology
[0002] During the process of driving the circuit breaker of the medium-voltage switchgear from the test position to the working position, the circuit breaker will cause a safety accident if the circuit breaker is closed incorrectly. Locking and closing function in the center prevents misoperation by staff and reduces hidden dangers of equipment safety; in the prior art, the anti-misoperation closing mechanism of the circuit breaker is complex and needs to occupy a lot of space, resulting in very crowded inside of the switchgear and a large number of parts , it is easy to cause the circuit breaker to fail to close or open reliably due to displacement action error
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[0025] As shown in the figure, a circuit breaker anti-mis-closing interlocking mechanism, the platform 11 where the circuit breaker is installed is equipped with a screw drive mechanism 13 that can drive the circuit breaker, the platform 11 is equipped with an interlock pull plate 5, and the bottom of the circuit breaker The opening and closing interlocking plate 3 is installed, the interlocking block 12 is set on the screw driving mechanism 13, and the interlocking pin 10 is set on the bottom of the circuit breaker; the longitudinal interlocking knife plate 14 is arranged between the interlocking pull plate 5 and the opening and closing interlocking plate 3, and the interlocking The fixed shaft 18 rear end of knife plate 14 is provided with drive pin 15, and interlocking pull plate 5 has flanging 20 and can promote drive pin 15 to drive fixed shaft 18 to press. image 3 Rotate to the left as shown, the fixed shaft 18 drives the chain knife plate 14 to rotate to the left; The ...
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The invention provides an anti-mis-closing interlocking mechanism for a circuit breaker. A testing position is locked through cooperation of an interlocking block and an interlocking pin. A locking closing function of the circuit breaker driven from the testing position to a work position is realized through cooperation of an interlocking pull plate, an interlocking knife plate and an opening / closing interlocking plate. The mechanism reset force is provided by an extension spring. Via the above way, misoperation by workers can be prevented, and the safety risks of equipment can be reduced. Besides, the operation is simple and easy, the manufacturing technique is low in cost, assembling is convenient, and the production efficiency is high.
Description
technical field [0001] The invention relates to a circuit breaker anti-mis-closing interlocking mechanism, which is applied to medium-voltage complete switchgear. Background technique [0002] During the process of driving the circuit breaker of the medium-voltage switchgear from the test position to the working position, the circuit breaker will cause a safety accident if the circuit breaker is closed incorrectly. Locking and closing function in the center prevents misoperation by staff and reduces equipment safety hazards; in the prior art, the circuit breaker anti-misoperation closing mechanism is complex and needs to occupy a lot of space, resulting in very crowded inside of the switchgear and a large number of parts , It is easy to cause the circuit breaker to fail to reliably close or open due to displacement action errors. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a circuit breaker mis-closing preve...
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IPC IPC(8): H01H9/20
CPCH01H9/20
Inventor 赵美莲田云霞何波邵晓飞
Owner 镇江大全智能电气有限公司