CN105609342A - Mechanical interlocking apparatus for low-voltage circuit breakers - Google Patents
Mechanical interlocking apparatus for low-voltage circuit breakers Download PDFInfo
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- CN105609342A CN105609342A CN201610139303.0A CN201610139303A CN105609342A CN 105609342 A CN105609342 A CN 105609342A CN 201610139303 A CN201610139303 A CN 201610139303A CN 105609342 A CN105609342 A CN 105609342A
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- steel wire
- wire rope
- guide thimble
- lever
- hand member
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H9/262—Interlocking, locking, or latching mechanisms for interlocking two or more switches using flexible transmission elements, e.g. Bowden cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
- H01H2009/265—Interlocking, locking, or latching mechanisms for interlocking two or more switches with interlocking of more than two switches
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Control Devices (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to a mechanical interlocking apparatus for low-voltage circuit breakers. The mechanical interlocking apparatus is characterized by comprising a first interlinking mechanism, a second interlinking mechanism and a third interlinking mechanism that are correspondingly mounted on side plates of a first circuit breaker, a second circuit breaker and a third circuit breaker respectively; a first upper bracket, a second upper bracket, a third upper bracket, a first lower bracket, a second lower bracket and a third lower bracket are fixedly connected with the respective first interlinking mechanism, the second interlinking mechanism and the third interlinking mechanism correspondingly; the two ends of the corresponding guide sleeves on six soft steel wire ropes are fixed on the upper and lower brackets of the three interlinking mechanisms in a crossed manner; the steel wire ropes can pull upper and lower levers; therefore, when three circuit breakers are in operating, the last circuit breaker cannot be switched on after the other two circuit breakers are switched on; the mechanical interlocking apparatus is relatively less in required parts, simple in structure, convenient to detach and adjust, accurate in actions, high in reliability and high in universality; and the shortcomings of large error range, inaccurate travel, unreliable actions and the like existing in the prior art for realizing the same functions are effectively overcome, so that the mechanical interlocking apparatus is high in industrial use value.
Description
Technical field
The invention belongs to a kind of breaker attachment device, particularly relate to a kind of mechanical interlocks of low-voltage circuit breaker.
Background technology
In market survey, client proposes three breaker interlockings and realizes any two unifications point, and any two breakers can be sameIn time, closes a floodgate, and the 3rd breaker cannot close a floodgate. And the mechanical interlocks function of existing DW45 breaker does not containThis two unifications point function. Have on the market two unifications to divide, flexible steel cable is walked stroke half, and stroke is inaccurate, it is unreliable to move.
Summary of the invention
The present invention can ensure two for the technical problem existing in solution known technology provides one can realize in three breakersThe mechanical interlocks of a kind of low-voltage circuit breaker that unification divides.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is: it includes respectively and is arranged onOn first, second and third breaker side plate, corresponding first, second and third interlocking mechanism (37,38,39); DescribedFirst, second and third interlocking mechanism (37,38,39) front again respectively to should have first, second and third upper lever (13,15,17) and first, second and third lower lever (14,16,18); Described first, second and third interlocking mechanism (37,38,39)First, second and third upper lever (13,15,17) of positive correspondence respectively and first, second and third lower lever (14,16,18)Dial with on corresponding first, second and third at described first, second and third interlocking mechanism (37,38,39) back side respectivelyPlate (25,27,29) with first, second and third lower plate (26,28,30) for to be coaxially connected, and described first and second,The lower plate (26,28,30) of plate on three (25,27,29) and first, second and third again corresponding thereto first and second,On/off switch rotating shaft on three breakers and switching-on mechanism main shaft cantilever are hinged, first, second and third described interlocking mechanism (37,38,39) corresponding being fixed with under first, second and third upper bracket (7,9,11) separately and first, second and third respectively onSupport (8,10,12); The first upper bracket (7) in the first interlocking mechanism (37) on described First breakerLeft side be fixed with second steel wire rope (2) with one end of guide thimble, and this of described the second steel wire rope (2)End is connected with the left end of described first time lever (14), described the second steel wire rope (2) with guide thimble separatelyOne end is connected in the right-hand member one of the 3rd upper bracket (11) on the tri-interlocking device (39) on described the 3rd breakerIn side, and this one end of described the second steel wire rope (2) is connected on described the 3rd upper bracket (11) with sameAnother one end with the 5th pull bar (23) of guide thimble is connected, and the other end of the 5th described pull bar withstands on describedThe right-hand member upper edge of the 3rd upper lever (17) on tri-interlocking device (39); On described First breakerThe right side of the first upper bracket (7) in one interlocking mechanism (37) be fixed with first steel wire rope (1) with fairleadOne end of pipe, and this end and of described the first steel wire rope (1) be connected on the first upper spider (7) with guide thimbleOne end of the first pull bar (19) be connected, the other end of described the first pull bar (19) withstands on described the first upper lever (13)Right-hand member upper edge, described the first steel wire rope (1) with the other end of guide thimble be connected in described the 3rdIn left end one side of the 3rd upper bracket (11) on the tri-interlocking device (39) on breaker, and the first described steel wireThis one end of rope (1) is connected with the left end of the 3rd time lever (18) on described tri-interlocking device (39); ?The right side of the first upper bracket (7) in the first interlocking mechanism (37) on described First breaker is also fixed with oneThe 4th steel wire rope (4) with one end of guide thimble, and this end and of described the 4th steel wire rope (4) is connected in firstOne end of the second pull bar (20) with guide thimble on upper spider (7) is connected, described the second pull bar (20)The other end withstands on the right-hand member upper edge of described the first upper lever (13), the 4th described steel wire rope (4) with leadBe connected in the second upper bracket (9) in the second interlocking mechanism (38) on described second breaker to the other end of sleeve pipeLeft end one side on, and this one end of the 4th described steel wire rope (4) with described the second interlocking mechanism (38) onThe left end of the second lower link (16) is connected; In the second interlocking mechanism (38) on second described breakerThe right side of two upper brackets (9) be fixed with one article of the 5th steel wire rope (5) with one end of guide thimble, and described the 5th steelThis end and one of silk rope (5) is connected in the 3rd pull bar (21) with guide thimble on described the second upper spider (9)One end is connected, and the other end of the 3rd described pull bar (21) withstands on the right-hand member upper edge of described the second upper lever (15),The 5th described steel wire rope (5) with the other end of guide thimble be connected in the 3rd on described the 3rd breakerIn right-hand member one side of the 3rd lower carriage (12) on latch mechanism (39), and this one end of the 5th described steel wire rope (5)Be connected with the right-hand member of the 3rd time lever (18) on described tri-interlocking device (39); Described the 3rd disconnectedThe right side of the 3rd upper bracket (11) on the tri-interlocking device (39) on the device of road is also fixed with one article of the 6th steel wire rope (6)With one end of guide thimble, and this end and of described the 6th steel wire rope (6) is connected in described the 3rd upper spider (11)On the one end of the 6th pull bar (24) with guide thimble be connected, the other end of the 6th described pull bar (24) withstands onThe right-hand member upper edge of described the 3rd upper lever (17), the 6th described steel wire rope (6) with another of guide thimbleEnd is connected in right-hand member one side of the second lower carriage (10) in the second interlocking mechanism (38) on described second breakerUpper, and this one end of the 6th described steel wire rope (6) with described the second interlocking mechanism (38) on second time lever(16) right-hand member is connected; The second upper bracket (9) on the second interlocking machine (38) on second described breakerRight side be also fixed with one article of the 3rd steel wire rope (3) with one end of guide thimble, and described the 3rd steel wire rope (3)One end that this end and is connected in the four-pull-rod (22) with guide thimble on described the second upper spider (9) is connected,The other end of described four-pull-rod (22) withstands on the right-hand member upper edge of described the second upper lever (15), and describedThree steel wire ropes (3) with the other end of guide thimble be connected in the first interlocking mechanism (37) on described First breakerOn right-hand member one side of the first lower carriage (8) on, and this one end of the 3rd described steel wire rope (3) is with described firstThe right-hand member of the first time lever (14) in interlocking mechanism (37) is connected.
Advantage and good effect that the present invention has are: can realize three breakers that can work time, when two breakers closeAfter lock, an other function that breaker cannot close a floodgate; And the part needing is less, simple in structure, tear open adjust convenient, movingDo accurately, reliability is high, highly versatile. Effectively overcome in prior art large in order to realize same function time error scope,Stroke is inaccurate, moves the shortcoming such as unreliable, thereby has high industrial utilization.
Brief description of the drawings
Fig. 1 is one of structural representation of the present invention;
Fig. 2 is two of structural representation of the present invention.
Detailed description of the invention
For further understanding content of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to say in detailBright as follows:
As shown in Figure 1, 2, be arranged on respectively three #1 interlocking mechanism 37,38 and of #2 interlocking mechanism on breaker side plate#3 interlocking mechanism 39. On the front of #1 interlocking mechanism 37, #2 interlocking mechanism 38 and #3 interlocking mechanism 39 has respectively separatelyLever 13 and lower lever 14, upper lever 15 and lower lever 16 and upper lever 17 and lower lever 18.. #1 interlocking mechanism 37,The front of #2 interlocking mechanism 38 and #3 interlocking mechanism 39 also has respectively one end to be fixed on interlocking mechanism's top edge separately separately,The other end is separately fixed at the extension spring 31,33 and 35 on lower lever 14,16 and 18 left sides and has one end to be fixed on separatelyInterlocking mechanism's lower limb, the other end is separately fixed at the extension spring 32,34 and 36 on upper lever 13,15 and 17 left sides. ?The back side of #1 interlocking mechanism 37, #2 interlocking mechanism 38 and #3 interlocking mechanism 39 has respectively upper plate 25 and lower plate separately26, upper plate 27 and lower plate 28 and upper plate 29 and lower plate 30. Upper lever 13 and lower lever 14 respectively with upper groupPlate 25 and lower plate 26 are coaxial; Same upper lever 15 and lower lever 16 are same with upper plate 27 and lower plate 28 respectivelyAxle and upper lever 17 and lower lever 18. are coaxial with upper plate 29 and lower plate 30 respectively. Upper plate 25,27 and 29Rotation can be pressed the on/off switch rotating shaft of the breaker being installed on it separately. And the rotation of lower plate 26,28 and 30 can driveThe switching-on mechanism main shaft cantilever of the breaker being installed on it is separately connected and moves, and cannot close a floodgate to realize corresponding breaker.
In addition, #1 interlocking mechanism 37, #2 interlocking mechanism 38 and #3 interlocking mechanism 39 upper and lower edge is separately fixing respectivelyUpper spider 7 and lower bearing bracket 8, upper spider 9 and lower bearing bracket 10 and upper spider 11 and lower bearing bracket 12 are installed. Upper spider 7,One end, right side of 9 and 11 fixedly mounts respectively with the pull bar 19 and 20 of guide thimble, pull bar 21 and 22 and pull bar 23With 24. Pull bar 19 and 20, pull bar 21 and 22 and the lower end of pull bar 23 and 24 withstand on respectively upper lever 13, Shang GangThe upper edge of the right-hand member of bar 15 and upper lever 17.
In addition, on the 2-1 position in the left side of upper bracket 7, fixedly mount a steel wire rope 2 with one end of guide thimble,And this end of steel wire rope 2 is connected with the left end of lower lever 14, steel wire rope 2 with the other end of guide thimble fixingBe arranged on the 2-2 position of right-hand member one side of upper bracket 11, and this one end of steel wire rope 2 with same be to be fixedly mounted onAnother on upper bracket 11 is with one end fixed installation of the pull bar 23 of sleeve pipe, and the other end of pull bar 23 withstands on thick stickThe upper edge of the right-hand member of bar 17; On the 1-1 position on the right side of upper bracket 7, be installed with a steel wire rope 1 withOne end of guide thimble, and this end and of steel wire rope 1 is fixedly mounted on the pull bar 19 with guide pin bushing on upper spider 7One end is connected, and the other end of pull bar 19 withstands on the upper edge of the right-hand member of upper lever 13, steel wire rope 1 with fairleadThe other end of pipe is fixedly mounted on the left end one side 1-2 position of upper bracket 11, and this one end of steel wire rope 1 with underThe left end of lever 18 is connected; On the 4-1 position on the right side of upper bracket 7, be also fixed with a steel wire rope 4 with leadTo one end of sleeve pipe, and this end and of steel wire rope 4 is fixedly mounted on one of the pull bar 20 with guide pin bushing on upper spider 7End is connected, and the other end of pull bar 20 withstands on the upper edge of the right-hand member of upper lever 13, steel wire rope 4 with guide thimbleThe other end be fixedly mounted on the left end one side 4-2 position of upper bracket 9, and this one end of steel wire rope 4 with lower link16 left end is connected; On 5-1 position, the right side of upper bracket 9, be installed with a steel wire rope 5 with guide thimbleOne end, and this end and of steel wire rope 5 to be fixedly mounted on the one end of the pull bar 21 with guide pin bushing on upper spider 9 solidDingan County dress, the other end of pull bar 21 withstands on the upper edge of the right-hand member of upper lever 15, steel wire rope 5 with guide thimbleThe other end be connected on the right-hand member one side 5-2 position of lower carriage 12, and this one end of steel wire rope 5 with lower lever 18Right-hand member be connected; On the 6-2 position on the right side of upper bracket 11, be also installed with a steel wire rope 6 with guidingOne end of sleeve pipe, and this end and of steel wire rope 6 is fixedly mounted on one end of the pull bar 24 with guide pin bushing on upper spider 11Fixed installation, the other end of pull bar 24 withstands on the upper edge of the right-hand member of upper lever 17, steel wire rope 6 with fairleadThe other end of pipe is fixedly mounted on the right-hand member one side 6-1 position of lower carriage 10, and this one end of steel wire rope 6 with underThe right-hand member of lever 16 is connected; On the 3-2 position on the right side of upper bracket 9, be also installed with a steel wire rope 3 withOne end of guide thimble, and this end and of steel wire rope 3 is fixedly mounted on the pull bar 22 with guide pin bushing on upper spider 9One end fixed installation, the other end of pull bar 22 withstands on the right-hand member upper edge of upper lever 15, steel wire rope 3 with leadBe fixedly mounted on to the other end of sleeve pipe on the right-hand member one side 3-1 position of lower carriage 8, and this one end of steel wire rope 3 withThe right-hand member of lower lever 14 is connected. Wherein the two ends of each guide thimble are separately fixed at two supports of Liang Ge interlocking mechanismUpper, guide thimble adjustable length.
Its operation principle is: when three interlocking mechanisms are during in initial position, three any one of breakers can close a floodgate,During as #1 breaker closing, when in #1 interlocking mechanism, lower lever 14 receives the switching signal being passed over by lower plate 26, underLever 14 rotates counterclockwise, and drives the push rod 23 in #3 interlocking mechanism to move upward, simultaneously by the 2nd transmission flexible steel cableDrive the push rod 22 in #2 interlocking mechanism to move upward by the 3rd flexible steel cable, now can be by #2 breaker and #3 breakerAny combined floodgate, during as #2 breaker closing, in #2 interlocking mechanism, lower lever 16 receives and is passed over by lower plate 28When switching signal, lower lever 16 rotates counterclockwise, and drives the push rod 20 in #1 interlocking mechanism by the 4th transmission flexible steel cableMove upward, drive the push rod 24 in #3 interlocking mechanism to move upward by the 6th flexible steel cable simultaneously, now push rod 23,Push rod 24 all moves upward, and the extension spring 36 in #3 interlocking mechanism drives upper lever 17 to rotate counterclockwise, and upper lever 17 drives upper diallingPlate 29 rotates counterclockwise, and upper plate 29 is connected with the on/off switch rotating shaft of #3 breaker, and on/off switch rotating shaft is rotated and can be made accordinglyBreaker cannot hasp combined floodgate semiaxis, cannot close a floodgate thereby realize #3 breaker. Same principle, as #2 breaker and #3When breaker closing, #1 breaker just cannot close a floodgate. In the time of #1 breaker and #3 breaker closing, #2 breaker justCannot close a floodgate.
In sum, can realize the mechanical interlocking of three breakers according to described operation principle, realize three breakers any twoPlatform closes a floodgate, and the 3rd can not be closed a floodgate.
Claims (1)
1. a mechanical interlocks for low-voltage circuit breaker, it includes and is arranged on respectively first, second and third breaker sideOn plate, corresponding first, second and third interlocking mechanism (37,38,39); At first, second and third described interlocking machineStructure (37,38,39) front again respectively to should have first, second and third upper lever (13,15,17) and first and second,Three times levers (14,16,18); Described first, second and third interlocking mechanism (37,38,39) is positive corresponding respectivelyFirst, second and third upper lever (13,15,17) and first, second and third lower lever (14,16,18) respectively withPlate on corresponding first, second and third at described first, second and third interlocking mechanism (37,38,39) back side (25,27,29) with first, second and third lower plate (26,28,30) for to be coaxially connected, and on described first, second and thirdThe lower plate (26,28,30) of plate (25,27,29) and first, second and third again corresponding thereto first and second,On/off switch rotating shaft on three breakers and switching-on mechanism main shaft cantilever are hinged, and it is characterized in that: described first and second,Corresponding first, second and third upper bracket (7,9,11) separately that is fixed with respectively on tri-interlocking device (37,38,39)With first, second and third lower carriage (8,10,12); The first interlocking mechanism (37) on described First breakerOn the left side of the first upper bracket (7) be fixed with second steel wire rope (2) with one end of guide thimble, and instituteThis end of stating the second steel wire rope (2) is connected with the left end of described first time lever (14), described the second steel wire rope (2)With the other end of guide thimble be connected in the 3rd on the tri-interlocking device (39) on described the 3rd breakerIn right-hand member one side of upper bracket (11), and this one end of described the second steel wire rope (2) with same be connected in described inAnother on the 3rd upper bracket (11) is connected with one end of the 5th pull bar (23) of guide thimble, and the described the 5thThe other end of pull bar withstands on the right-hand member upper edge of the 3rd upper lever (17) on described tri-interlocking device (39); ?The right side of the first upper bracket (7) in the first interlocking mechanism (37) on described First breaker is fixed with one articleOne steel wire rope (1) with one end of guide thimble, and this end and of described the first steel wire rope (1) is connected in firstOne end of the first pull bar (19) with guide thimble on upper spider (7) is connected, described the first pull bar (19)The other end withstands on the right-hand member upper edge of described the first upper lever (13), described the first steel wire rope (1) with leadBe connected in the 3rd upper bracket (11) on the tri-interlocking device (39) on described the 3rd breaker to the other end of sleeve pipeLeft end one side on, and this one end of described the first steel wire rope (1) with described tri-interlocking device (39) onThe left end of three times levers (18) is connected; In the first interlocking mechanism (37) on described First breakerThe right side of one upper bracket (7) be also fixed with one article of the 4th steel wire rope (4) with one end of guide thimble, and describedThis end and one of four steel wire ropes (4) is connected in the second pull bar (20) with guide thimble on the first upper spider (7)One end be connected, the other end of described the second pull bar (20) withstands on the right-hand member top of described the first upper lever (13)Edge place, the 4th described steel wire rope (4) with the other end of guide thimble be connected on described second breakerIn left end one side of the second upper bracket (9) in the second interlocking mechanism (38), and the 4th described steel wire rope (4)This one end is connected with the left end of the second lower link (16) in described the second interlocking mechanism (38); DescribedThe right side of the second upper bracket (9) in the second interlocking mechanism (38) on second breaker is fixed with one article of the 5th steel wireRope (5) with one end of guide thimble, and this end and of described the 5th steel wire rope (5) is connected on described secondOne end of the 3rd pull bar (21) with guide thimble in frame (9) is connected, the 3rd described pull bar (21) anotherOne end withstands on the right-hand member upper edge of described the second upper lever (15), the 5th described steel wire rope (5) with guidingThe other end of sleeve pipe is connected in the 3rd lower carriage (12) on the tri-interlocking device (39) on described the 3rd breakerRight-hand member one side on, and this one end of the 5th described steel wire rope (5) with described tri-interlocking device (39) onThe right-hand member of the 3rd time lever (18) is connected; On tri-interlocking device (39) on the 3rd described breakerThe right side of the 3rd upper bracket (11) be also fixed with one article of the 6th steel wire rope (6) with one end of guide thimble, and described inThis end and one of the 6th steel wire rope (6) is connected in the 6th pull bar with guide thimble on described the 3rd upper spider (11)(24) one end is connected, and the other end of the 6th described pull bar (24) withstands on the right side of described the 3rd upper lever (17)End upper edge, the 6th described steel wire rope (6) with the other end of guide thimble be connected in described second and open circuitIn right-hand member one side of the second lower carriage (10) in the second interlocking mechanism (38) on device, and the 6th described steel wire rope(6) this one end is connected with the right-hand member of the second time lever (16) in described the second interlocking mechanism (38); ?The right side of the second upper bracket (9) on the second interlocking machine (38) on second described breaker is also fixed with one articleThree steel wire ropes (3) with one end of guide thimble, and described in this end and of described the 3rd steel wire rope (3) is connected inOne end of the four-pull-rod (22) with guide thimble on the second upper spider (9) is connected, described four-pull-rod (22)The other end withstand on the right-hand member upper edge of described the second upper lever (15), the 3rd described steel wire rope (3) withThe other end of guide thimble is connected in the first lower carriage in the first interlocking mechanism (37) on described First breaker(8) in right-hand member one side, and this one end of the 3rd described steel wire rope (3) with described the first interlocking mechanism (37)On the right-hand member of first time lever (14) be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139303.0A CN105609342B (en) | 2016-03-11 | 2016-03-11 | A kind of low-voltage circuit breaker mechanical interlocks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610139303.0A CN105609342B (en) | 2016-03-11 | 2016-03-11 | A kind of low-voltage circuit breaker mechanical interlocks |
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| CN105609342A true CN105609342A (en) | 2016-05-25 |
| CN105609342B CN105609342B (en) | 2019-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108878191A (en) * | 2017-05-10 | 2018-11-23 | 上海良信电器股份有限公司 | The mechanical soft interlocking fixation with steel wire mode of omnipotent breaker |
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2016
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| EP0782759B1 (en) * | 1994-09-20 | 1999-05-26 | Asea Brown Boveri Ab | Operating device for circuit breakers |
| CN1585061A (en) * | 2004-06-11 | 2005-02-23 | 安徽鑫龙电器股份有限公司 | Interlocking device of three-way power-supply breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108878191A (en) * | 2017-05-10 | 2018-11-23 | 上海良信电器股份有限公司 | The mechanical soft interlocking fixation with steel wire mode of omnipotent breaker |
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| CN105609342B (en) | 2019-01-11 |
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