CN103065888B - Trip-free return mechanism of class-CB automatic transfer switching device - Google Patents
Trip-free return mechanism of class-CB automatic transfer switching device Download PDFInfo
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- CN103065888B CN103065888B CN201310027905.3A CN201310027905A CN103065888B CN 103065888 B CN103065888 B CN 103065888B CN 201310027905 A CN201310027905 A CN 201310027905A CN 103065888 B CN103065888 B CN 103065888B
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- shift fork
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- circuit breaker
- crank
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Abstract
The invention relates to a trip-free return mechanism of a class-CB automatic transfer switching device. The mechanism comprises a shift fork A, a shift fork B, a main operating shaft, a bracket, a guiding shaft and a fixed shaft, wherein the fixed shaft is fixed on the bracket; an upper crank and a lower crank are rigidly fixed with the main shaft of an operating mechanism, and the main shaft of the operating mechanism is rigidly connected with a motor shaft; a rectangular hole of the shift fork B is penetrated by the fixed shaft, and a lower pressing plate is mounted on the shift fork B through the fixed shaft; a rectangular hole of the shift fork A is penetrated by the fixing shaft, an upper pressing plate is mounted on the shift fork A through the fixed shaft, and a clamp spring is clamped in a clamp spring groove of the shaft for axial restriction; a restricting part is articulated with the shift fork A through a hinged shaft, the two ends of the guiding shaft are respectively fixed on the bracket, and the guiding shaft is sleeved with a spring; and a toggle shaft passes through the upper crank and is riveted on the lower crank. The return mechanism can respectively control the closing and opening actions of a miniature circuit breaker connected to a normal power supply or a backup power supply. The trip-free return mechanism of the class-CB automatic transfer switch is reasonable and simple in structure, and reliable and safe in performance, and realizes the function that a class-CB automatic transfer switching device product trips freely and resets without any external force action when the miniature circuit breaker is overloaded or has a short circuit.
Description
Technical field
The present invention relates to a kind of device for switching, specifically a kind of CB level automatic transfer switching electric appliance trip free return mechanism.Belong to low-pressure electronic equipment product manufacture and applied technical field, be mainly used in the industries such as industrial and mining enterprises, electric power, metallurgy, chemical industry, hospital and building.
Background technology
CB level automatic transfer switching electric appliance trip free return mechanism, there is the splitting or integrating of control miniature circuit breaker (conventional power supply or stand-by power supply) self, and when overload or short circuit appear in miniature circuit breaker, to the dropout of miniature circuit breaker and pull work again and do not have external force to limit.Make above-mentioned miniature circuit breaker complete splitting or integrating, thread off and detain (overload or short-circuit conditions under) such a course of work again.But existing CB level automatic transfer switching electric appliance operating mechanism, because shift fork is integral type structure, that is: controlling miniature circuit breaker splitting or integrating shift fork handle used by operating mechanism is one, when rotary operation mechanism main shaft makes miniature circuit breaker (conventional power supply or stand-by power supply) be in the state of conjunction, shift fork handle (combined floodgate side) is pressed on the handle of miniature circuit breaker, when miniature circuit breaker occur overload or short circuit thread off and when detaining again, because miniature circuit breaker handle is restricted, dropout and buckle position cannot be got back to.Make miniature circuit breaker get back to de-mouth and buckle position, must mechanism be made to get back to initial position by rotary operation mechanism main shaft.The speed that miniature circuit breaker takes off mouthful return in the process of return is subject to the restriction of operating mechanism speed all the time.The motion of operating mechanism is by driven by motor, and its speed freely takes off the speed of mouth return much smaller than miniature circuit breaker.Due to miniature circuit breaker self structure, during dropout, the speed of free return is wanted fast and detains.Because miniature circuit breaker dropout return is not free return, seating velocity is slow, does not accelerate, so it is larger to there is the probability that can not detain again.Miniature circuit breaker occurs that overload or short circuit must ensure to detain reliably while threading off again, and button is that after ensureing that fault is eliminated, miniature circuit breaker realizes the prerequisite of normal splitting or integrating more reliably.
Summary of the invention:
The present invention is for the purpose of solving the problem, and mainly solves miniature circuit breaker in prior art and occurs freely to get back to trip positions after overload or short circuit are threaded off and detaining, and cause the problem of electric equipment products poor reliability.The invention provides a kind of when overload or short circuit appear in miniature circuit breaker, it is threaded off and pulls work again and is not subject to any External Force Acting, can trip free and the novel C B level automatic transfer switching electric appliance trip free return mechanism detained again.
The object of the invention is to be achieved through the following technical solutions: CB level automatic transfer switching electric appliance trip free return mechanism, comprise shift fork A (1), shift fork B (2), operating mechanism main shaft (7), support (8), the axis of guide (5) and fixed axis (9), above-mentioned fixed axis (9) is fixed on support (8).Upper crank (11) and lower crank (12) rigidly fix with operating mechanism main shaft (7), and operating mechanism main shaft (7) and motor shaft are rigidly connected.The slot of above-mentioned shift fork B (2) is through on fixed axis (9), and lower platen (13) is arranged on shift fork B (2) by fixed axis (9).The slot of shift fork A (1) is through on fixed axis (9), top board (10) is arranged on shift fork A (1) by fixed axis (9), and jump ring is stuck in the jump-ring slot of fixed axis (9) and does axial limiting.Limited part (3) is hinged with shift fork A (1) by hinge (14), the two ends of the axis of guide (5) are separately fixed on support (8), and the upper cover of the above-mentioned axis of guide (5) has spring (6).Shifting shaft (4) is through upper crank (11) and be riveted on lower crank (12).
Above-mentioned trip free return mechanism can control the splitting or integrating action of the miniature circuit breaker being connected to conventional power supply or stand-by power supply respectively.
When needing the miniature circuit breaker being connected to conventional power supply or stand-by power supply to be in "on" position, drive axle rotation forces shift fork A (1) on crank and shift fork B (2) moving linearly to make shift fork handle (combined floodgate handle) to miniature circuit breaker handle with external force with handle (left-handed or dextrorotation) rotary operation mechanism main shaft (7), that is: miniature circuit breaker closes a floodgate.While combined floodgate puts in place, the limited part on combined floodgate shift fork B (2) departs from the axle on crank, makes combined floodgate shift fork B (2) spring back to original position by the External Force Acting of spring (6).
When overload or short circuit appear in miniature circuit breaker, miniature circuit breaker handle, not by any External Force Acting, is freely got back to de-mouth position and reliably detains again.
When needs miniature circuit breaker is in gate-dividing state, axle rotation forces shift fork A (1) moving linearly on crank is driven to make shift fork handle (point sneek) to miniature circuit breaker handle with external force namely with handle (dextrorotation or left-handed) rotary operation mechanism main shaft (7): miniature circuit breaker separating brake.Axle simultaneously on crank falls back on the position that shift fork B (2) closes a floodgate again.
Beneficial effect of the present invention and advantage: because the shift fork handle that the miniature circuit breaker in the present invention closes a floodgate and separating brake is used adopts split-type structural, solve rightly miniature circuit breaker in prior art close a floodgate miniature circuit breaker that the shift fork handle used with separating brake bring for integral type structure can not trip free return, and affect the problem of properties of product and reliability.Of the present invention rational in infrastructure and simple, dependable performance safety, achieves CB level automatic transfer switching electric appliance product when overload or short circuit appear in miniature circuit breaker, the function not being subject to any External Force Acting trip free and detaining.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Embodiment
With reference to Fig. 1, CB level automatic transfer switching electric appliance trip free return mechanism, comprise shift fork A1, shift fork B2, operating mechanism main shaft 7, support 8, the axis of guide 5 and fixed axis 9, above-mentioned fixed axis 9 is fixed on support 8.Upper crank 11 and lower crank 12 rigidly fix with operating mechanism main shaft 7, and operating mechanism main shaft 7 and motor shaft are rigidly connected.The slot of above-mentioned shift fork B2 is through on fixed axis 9, and lower platen 13 is arranged on shift fork B2 by fixed axis 9.The slot of shift fork A1 is through on fixed axis 9, and top board 10 is arranged on shift fork A1 by fixed axis 9, and jump ring is stuck in the jump-ring slot of axle 9 and does axial limiting.Limited part 3 is hinged with shift fork A1 by twisted axis 14, and the two ends of the axis of guide 5 are separately fixed on support 8, and on the above-mentioned axis of guide 5, cover has spring 6.Shifting shaft 4 passes upper crank 11 and is riveted on lower crank 12.
Above-mentioned trip free return mechanism can control the splitting or integrating action of the miniature circuit breaker being connected to conventional power supply or stand-by power supply respectively, moves freely, dependable performance.
Claims (1)
1. a CB level automatic transfer switching electric appliance trip free return mechanism, comprise shift fork A (1), shift fork B (2), it is characterized in that: it also comprises operating mechanism main shaft (7), support (8), the axis of guide (5) and fixed axis (9), above-mentioned fixed axis (9) is fixed on support (8), upper crank (11) and lower crank (12) rigidly fix with operating mechanism main shaft (7), operating mechanism main shaft (7) and motor shaft are rigidly connected, the slot of above-mentioned shift fork B (2) is through on fixed axis (9), lower platen (13) is arranged on shift fork B (2) by fixed axis (9), the slot of shift fork A (1) is through on fixed axis (9), top board (10) is arranged on shift fork A (1) by fixed axis (9), jump ring is stuck in the jump-ring slot of fixed axis (9) and does axial limiting, limited part (3) is hinged with shift fork A (1) by hinge (14), the two ends of the axis of guide (5) are separately fixed on support (8), the upper cover of the above-mentioned axis of guide (5) has spring (6), shifting shaft (4) is through upper crank (11) and be riveted on lower crank (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310027905.3A CN103065888B (en) | 2013-01-24 | 2013-01-24 | Trip-free return mechanism of class-CB automatic transfer switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310027905.3A CN103065888B (en) | 2013-01-24 | 2013-01-24 | Trip-free return mechanism of class-CB automatic transfer switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103065888A CN103065888A (en) | 2013-04-24 |
| CN103065888B true CN103065888B (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310027905.3A Active CN103065888B (en) | 2013-01-24 | 2013-01-24 | Trip-free return mechanism of class-CB automatic transfer switching device |
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| CN (1) | CN103065888B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5397868A (en) * | 1993-09-28 | 1995-03-14 | Eaton Corporation | Transfer switch |
| US7211750B2 (en) * | 2004-12-22 | 2007-05-01 | Square D Company | Switching mechanism with shock absorber |
| CN201374265Y (en) * | 2009-02-23 | 2009-12-30 | 无锡Tcl罗格朗低压电器有限公司 | Transmission interlocking mechanism for automatic transfer switching equipment |
| CN201838488U (en) * | 2010-08-26 | 2011-05-18 | 巨邦电气有限公司 | Double-power automatic change-over switch |
| CN203150497U (en) * | 2013-01-24 | 2013-08-21 | 沈阳斯沃电器有限公司 | Free release/return mechanism for CB class automatic change-over electric appliance |
-
2013
- 2013-01-24 CN CN201310027905.3A patent/CN103065888B/en active Active
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| CN103065888A (en) | 2013-04-24 |
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