4results about "Protective switch distinguishing marks" patented technology

The utility model relates to the field of fabricated building, concretely provides a drive arrangement of circuit breaker. The utility model discloses a circuit breaker main part and bottom disc car, be provided with panel on the circuit breaker main part, install the worm wheel on the panel, the worm wheel is engaged with worm, constitutes mechanical transmission part, install handle on the worm, rotate through manual drive worm wheel, further control circuit breaker main part's switching operation, the spiral angle design of worm is less than friction angle, ensure reverse self -locking function, realize high -efficient energy conversion through adopting the combination design of worm wheel worm drive and spring energy storage, make the operating personnel be able to easily complete energy storage process, the synergic work of vacuum bubble and plum blossom contact finger forms double guarantee mechanism, and the vacuum arc-extinguishing chamber can extinguish instantaneously when opening, and the elastic contact structure of plum blossom contact finger guarantees that contact resistance is certain under the on state, effectively avoids the overheat risk.

This utility model relates to an easy-to-install circuit breaker, comprising a circuit breaker body and a mounting base, wherein the circuit breaker body is detachably mounted on the mounting base. The outer surface of the circuit breaker body is provided with color-coded markings to indicate the functional types of the wiring terminals; the mounting base is provided with directional arrows to indicate the correct installation direction; the circuit breaker body is provided with an alignment window to allow viewing of the alignment marks on the base for precise positioning. By setting up the above-mentioned visual structure, installation identification is effectively improved, the risk of misinstallation is reduced, and construction efficiency is increased.

The utility model relates to the technical field of electrical safety signboard, and disclose a kind of fixed electrical safety signboard of small standard circuit breaker, including circuit breaker body and the signboard body being set on circuit breaker body, the upper end of the signboard body is fixedly installed with warning sign, under the cooperation of connecting rod, connecting plate, clamping plate, first spring and first sliding slot, make the signboard body be fixed on circuit breaker body, under the cooperation of rubber plate and several grooves, the friction with circuit breaker body can be increased, to avoid signboard body to fall off, under the cooperation of displacement plate, second spring and brake slot, make displacement plate to fill up brake slot, avoid brake false contact closing, so as to cause the electric shock phenomenon of operator, when brake goes to the direction of closing, brake just contact with alarm button, so as to alarm to notify operator, remind operator to put down the work on hand in time, avoid causing electric shock.

To provide a circuit breaker which can distinctively display connection states of a plurality of power lines with a simple structure.SOLUTION: A connection part 40 is formed by a member which has flexibility and is non-stretchable. Since the member forming the connection part 40 has flexibility, an output part 30 and a display part 50 can be linked to each other according to a physical relationship therebetween without providing a complicated mechanism. Further, since the member forming the connection part 40 is a non-stretchable member, the display part 50 can be moved accurately according to a distance that the output part 30 moves. Therefore, the display part 50 can distinctively display connection states of a plurality of power lines with high accuracy without needing a complicated mechanism and dimensional accuracy of components.SELECTED DRAWING: Figure 8