CN102664112B - Mechanical interlocking device for breakers - Google Patents
Mechanical interlocking device for breakers Download PDFInfo
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- CN102664112B CN102664112B CN201210145320.7A CN201210145320A CN102664112B CN 102664112 B CN102664112 B CN 102664112B CN 201210145320 A CN201210145320 A CN 201210145320A CN 102664112 B CN102664112 B CN 102664112B
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- lever
- interlocking unit
- movable pulley
- circuit breaker
- regulating block
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Abstract
The invention provides a mechanical interlocking device for breakers, which comprises three interlocking units connected with transmission devices of three breakers, wherein the interlocking units are connected with one another through transmission cables; each interlocking unit comprises a bracket, a baffle, a movable pulley, a lower lever, an upper lever, a first resetting spring, a second resetting spring, an adjustment block, an upper shifting plate and a lower shifting plate. By using the principle that labor can be saved by half, and the distance can be lengthened by one time of the movable pulley, any two breakers can be switched on, and another circuit cannot be switched on. The mechanical interlocking device has the advantages of simple structure, convenience in disassembly and adjustment, and high reliability and generality.
Description
Technical field
The present invention relates to a kind of mechanical device, particularly relate to a kind of mechanical interlocks of low-voltage circuit breaker.
Background technology
In market survey, client proposes three circuit breakers interlocking and realizes two unifications and divide, and two circuit breakers can close a floodgate simultaneously, and the 3rd circuit breaker cannot close a floodgate.And not containing two unifications, the mechanical interlocks function of existing DW45 circuit breaker divides.Have on the market two one point unreliable again.
Application number is 200920069544.8 Chinese patent " for the mechanical interlocks of air circuit ", introduce a kind of mechanical interlocks that can realize two unifications point function, this mechanical interlocks comprises the first chain unit, the second chain unit and the 3rd chain unit, three chain unit are connected with three circuit breaker transmission devices respectively, between each chain unit, be connected by transmission flexible cord, each chain unit comprises a support, front at support is provided with active plate, control board, the first follower plate, the second follower plate, the first back-moving spring, the second back-moving spring and reduction torsion spring, the first plate and the second plate are installed at the back side of support, wherein the active plate in the first chain unit is connected with the second follower plate transmission in the 3rd chain unit with the first follower plate in the second chain unit respectively by two transmission flexible cords, active plate in the second chain unit is connected with the first follower plate transmission in the 3rd chain unit with the second follower plate in the first chain unit respectively by two transmission flexible cords, active plate in the 3rd chain unit is connected with the second follower plate transmission in the second chain unit with the first follower plate in the first chain unit respectively by two transmission flexible cords.This invention adopts the setting of an active plate and two follower plates, and six roots of sensation transmission flexible cord, realizes the unification point of two between three circuit breakers, and its structure is comparatively complicated, part is more, and required transmission flexible cord is more.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of mechanical interlocks for circuit breaker, for solving the problem of prior art complex structure, poor reliability.
For achieving the above object and other relevant objects, the invention provides a kind of mechanical interlocks for circuit breaker, be used for realizing three circuit breakers, in the time of two breaker closings wherein, the 3rd circuit breaker cannot close a floodgate, the described mechanical interlocks for circuit breaker comprises: the first interlocking unit, the second interlocking unit and the 3rd interlocking unit, three interlocking units are connected with the transmission device of three circuit breakers respectively, it is characterized in that, between each chain unit, be connected by three transmission hawsers, described each interlocking unit comprises a support, in the front of support, lower lever is installed, upper lever, the first back-moving spring, the second back-moving spring, movable pulley and regulating block, lower plate and upper plate are installed at the back side of support,
In same interlocking unit, movable pulley is fixed on upper lever also rotatable, regulating block is fixed on lower lever, lower lever is connected with lower plate fixed conveyor, upper lever is connected with upper plate fixed conveyor, the first back-moving spring is connected with upper lever and can drives upper lever to reset, and the second back-moving spring is connected with lower lever and can drives lower lever to reset;
In three interlocking units, the two ends of first hawser are separately fixed on the regulating block of the second interlocking unit and the regulating block of the 3rd interlocking unit, and centre is walked around the movable pulley of the first interlocking unit and can be driven its rotation; The two ends of second hawser are separately fixed on the regulating block of the first interlocking unit and the regulating block of the 3rd interlocking unit, and centre is walked around the movable pulley of the second interlocking unit and can be driven its rotation; The two ends of the 3rd hawser are separately fixed on the regulating block of the first interlocking unit and the regulating block of the second interlocking unit, and centre is walked around the movable pulley of the 3rd interlocking unit and can be driven its rotation.
Preferably, on described movable pulley, be fixed with one and do not affect the baffle plate that movable pulley rotates.
Preferably, described regulating block comprises the set screw that can regulate transmission cable length, the location hole passing through for transmission hawser, and described set screw is for clamping or unclamp the transmission hawser of location hole.
Preferably, one end of described upper lever is fixed with movable pulley, the other end of described upper lever is connected with one end of the first back-moving spring, the other end of described the first back-moving spring is fixed on support, one end of described lower lever is fixed with regulating block, the other end of described lower lever is connected with one end of the second back-moving spring, and the other end of described the second back-moving spring is fixed on support.
Further, the transmission hawser between described any two interlocking units is all through corresponding guide thimble, and the two ends of described each guide thimble are separately fixed on two supports of two interlocking units.
Further, described support comprise be fixedly connected with, and dismountable upper bracket and lower carriage, lever, upper lever, the first back-moving spring, the second back-moving spring, movable pulley, baffle plate and regulating block under installing in the front of upper bracket, install and set aside version and upper plate at the back side of upper bracket, described pilot sleeve is all fixed on lower carriage.
Preferably, described lower plate is connected with the on/off switch rotating shaft transmission of circuit breaker, and described upper plate is connected with the emergency brake-dividing device transmission of circuit breaker.
As mentioned above, the mechanical interlocks for circuit breaker of the present invention, has following beneficial effect: part is less, simple in structure, reliability is high.
Brief description of the drawings
Fig. 1 is shown as the mechanical interlocks Facad structure schematic diagram for circuit breaker of the present invention.
Fig. 2 is shown as the mechanical interlocks reverse side structural representation for circuit breaker of the present invention.
Fig. 3 is regulating block structural representation.
Number in the figure explanation
1 first interlocking unit
2 second interlocking units
3 the 3rd interlocking units
41 first transmission hawsers
42 second transmission hawsers
43 the 3rd transmission hawsers
5 guide thimbles
10,20,30 3 supports
11,21,31 3 lower levers
12,22,32 3 upper levers
13,23,33 3 the first back-moving springs
14,24,34 3 the second back-moving springs
15,25,35 3 movable pulleys
16,26,36 3 regulating blocks
17,27,37 3 lower plates
18,28,38 3 upper plates
19,29,39 3 baffle plates
101 first interlocking unit upper brackets
102 first interlocking unit lower carriages
161 set screw
The location hole of 162 second transmission hawsers
The location hole of 163 the 3rd transmission hawsers
Embodiment
By particular specific embodiment explanation embodiments of the present invention, person skilled in the art scholar can understand other advantages of the present invention and effect easily by the disclosed content of this specification below.
Refer to Fig. 1 to Fig. 3.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., all contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, not affecting under effect that the present invention can produce and the object that can reach, all should still drop on disclosed technology contents and obtain in the scope that can contain.Simultaneously, in this specification, quote as " on ", the term of D score, " left side ", " right side ", " centre " and " " etc., also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, changing under technology contents, when being also considered as the enforceable category of the present invention without essence.
The invention provides a kind of mechanical interlocks for circuit breaker, be used for realizing three circuit breakers, in the time of two breaker closings wherein, the 3rd circuit breaker cannot close a floodgate, as depicted in figs. 1 and 2, this mechanical interlocks that is used for circuit breaker comprises: the first interlocking unit 1, the second interlocking unit 2 and the 3rd interlocking unit 3, three interlocking units are connected with the transmission device of three circuit breakers respectively, between each chain unit, pass through three transmission hawsers 41, 42, 43 are connected, each interlocking unit comprises a support 10, 20, 30, lower lever 11 is installed in the front of support, 21, 31, upper lever 12, 22, 32, the first back-moving spring 13, 23, 33, the second back-moving spring 14, 24, 34, movable pulley 15, 25, 35, baffle plate 19, 29, 39 and regulating block 16, 26, 36, lower plate 17 is installed at the back side of support, 27, 37 and upper plate 18, 28, 38,
In same interlocking unit, for example, in the first interlocking unit 1, movable pulley 15 is fixed on one end of upper lever 12 and rotatable (movable pulley 15 can rotation, and movable pulley 15 can rotate with upper lever 12), baffle plate 19 is fixed on does not affect its rotation on movable pulley 15, the other end of upper lever 12 is connected with one end of the first back-moving spring 13, the other end of the first back-moving spring 13 is fixed on support 10, regulating block 16 is fixed on one end of lower lever 11, the other end of lower lever 11 is connected with one end of the second back-moving spring 14, the other end of the second back-moving spring 14 is fixed on support 10, lower lever 11 is connected with lower plate 17 fixed conveyor, lower lever 11 and lower plate 17 can be rotated simultaneously, upper lever 12 is connected with upper plate 18 fixed conveyor, upper lever 12 and upper plate 18 can be rotated simultaneously, the first back-moving spring 13 is connected and can drives upper lever 12 to reset with upper lever 12, and the second back-moving spring 14 is connected and can drives lower lever 11 to reset with lower lever 11,
In three interlocking units, the two ends of first hawser 41 are separately fixed on the regulating block 26 of the second interlocking unit and the regulating block 36 of the 3rd interlocking unit, and centre is walked around the movable pulley 15 of the first interlocking unit and can be driven its rotation; The two ends of second hawser 42 are separately fixed on the regulating block 16 of the first interlocking unit and the regulating block 36 of the 3rd interlocking unit, and centre is walked around the movable pulley 25 of the second interlocking unit and can be driven its rotation; The two ends of the 3rd hawser 43 are separately fixed on the regulating block 16 of the first interlocking unit and the regulating block 26 of the second interlocking unit, centre is walked around the movable pulley 35 of the 3rd interlocking unit and can be driven its rotation, baffle plate 19,29,39 on three movable pulleys 15,25,35, for preventing that transmission hawser 41,42,43 from departing from movable pulley 15,25,35.
Hawser between any two interlocking units is all through corresponding guide thimble 5, and the two ends of each guide thimble 5 are separately fixed on two supports of two interlocking units.
Wherein, as shown in Figure 1, taking the first interlocking unit 1 as example, support 10 comprises and being fixedly connected with, and dismountable upper bracket 101 and lower carriage 102, lever 11 under installing in the front of upper bracket 101, upper lever 12, the first back-moving spring 13, the second back-moving spring 14, movable pulley 15, baffle plate 19 and regulating block 16, plate 17 and upper plate 18 under installing at the back side of upper bracket 101, pilot sleeve 5 is fixed on lower carriage 102, the other end of the first back-moving spring 13 is fixed on lower carriage 102, the other end of the second back-moving spring 14 is fixed on upper bracket 101, support 10 is divided into designing two portions, be convenient in the time not needing fixed guide sleeve pipe 5, lower carriage 102 can be removed.
Taking the first interlocking unit 1 as example, as shown in Figure 3, regulating block 16 comprises the set screw 161 that can regulate transmission hawser 42,43 length, and can supply second location hole 162 that transmission hawser 42 passes, the 3rd location hole that transmission hawser 43 passes 163, with the example that is adjusted to of transmission hawser 42, transmission hawser 42 is through location hole 162, unclamp the relative set screw 161 in location hole 162 both sides, regulate the length of transmission hawser 42, then set screw 161 is tightened, transmission hawser 42 is fixedly clamped in the location hole 162 of regulating block 16.Therefore regulating block of the present invention has fixed conveyor hawser and the dual-use function that regulates transmission hawser length, when realize circuit breaker " closes two points " when needs, and just need to be by short the length tune of transmission hawser.
Operation principle of the present invention is described as follows:
Lower plate in the present invention is connected with the on/off switch rotating shaft of corresponding circuit breaker, and lower plate can capture the on/off switch state of circuit breaker and be delivered on the lever with regulating block; Upper plate is connected with corresponding circuit breaker emergency brake-dividing device, and emergency brake-dividing device can pull combined floodgate aircraft frame to make it cannot hasp combined floodgate semiaxis, cannot close a floodgate thereby realize corresponding circuit breaker.
In the time that in the first interlocking unit 1, lower lever 11 receives the switching signal being passed over by lower plate 17, lower lever 11 rotates counterclockwise, drive movable pulley 25, upper lever 22 in the second interlocking unit 2 to be rotated down by second transmission hawser 42, drive movable pulley 35, upper lever 32 in the 3rd interlocking unit 3 to be rotated down by the 3rd hawser 43 simultaneously, when motion finishes, the upper lever 22,32 of the second interlocking unit 2 and the 3rd interlocking unit 3, upper plate 28,38 is all rotated an angle, but this angle does not also reach the angle that makes emergency brake-dividing device action.
In the time that the lower lever 21 in the second interlocking unit 2 receives the switching signal being passed over by lower plate 27, lower lever 21 rotates counterclockwise, drive the movable pulley 15 in the first interlocking unit 1 by first transmission hawser 41, upper lever 12 is rotated down, drive the movable pulley 35 in the 3rd interlocking unit 3 by the 3rd transmission hawser 43 simultaneously, upper lever 32 is rotated down, when motion finishes, the upper lever 12 of the first interlocking unit 1, upper plate 18 is rotated an angle, but this angle does not also reach the angle that makes emergency brake-dividing device action, the now upper lever 32 of the 3rd interlocking unit 3, upper plate 38 is rotated an angle again, the angular stack of this angle and rotation last time, reach the angle that makes emergency brake-dividing device action, so the emergency brake-dividing device of the 3rd circuit breaker action, the 3rd circuit breaker being connected with the 3rd interlocking unit cannot be closed a floodgate.
In the time that the lower lever 11 in the first interlocking unit 1 receives the sub-gate signal being passed over by lower plate 17, lower lever 11 clockwise rotates, thereby loosen the control to second transmission hawser 42 and the 3rd transmission hawser 43, make the upper lever 22 in the second interlocking unit 2 be pulled and turn clockwise by the first back-moving spring 23, in the 3rd interlocking unit 3, upper lever 32 is pulled and turns clockwise by the first back-moving spring 33, when motion finishes, upper lever 22 in the second interlocking unit 2 resets to initial conditions, the upper lever 32 of the 3rd interlocking unit 3 discharges an angle, the emergency brake-dividing device being attached thereto cannot move.
Now in the time that the lower lever 31 in the 3rd interlocking unit 3 receives the switching signal being passed over by lower plate 37, lower lever 31 rotates counterclockwise, drive the movable pulley 15 in the first interlocking unit by first hawser 41, upper lever 12 is rotated down, drive the movable pulley 25 in the second interlocking unit by second transmission hawser 42 simultaneously, upper lever 22 is rotated down, when motion finishes, the upper lever 12 of the first interlocking unit 1, upper plate 18 is rotated an angle again, the angular stack of this angle and rotation last time, reach the angle that makes emergency brake-dividing device action, so the emergency brake-dividing device of First circuit breaker action, the First circuit breaker being connected with the first interlocking unit 1 cannot be closed a floodgate, the upper lever 22 of the second interlocking unit, upper plate 28 is again from an angle of initial condition rotation, but this angle does not also reach the angle that makes emergency brake-dividing device action.Under this kind of state, second circuit breaker and the 3rd circuit breaker are all in "on" position, but First circuit breaker cannot close a floodgate.
In sum, the present invention is for the mechanical interlocks of circuit breaker, utilizes the principle that movable pulley can one times of distance of a laborsaving half-sum expense, realize any two breaker closings, the 3rd circuit breaker can not close a floodgate, and it is simple in structure, tear open and adjust conveniently, reliability is high, highly versatile.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (7)
1. the mechanical interlocks for circuit breaker, be used for realizing three circuit breakers, in the time of two breaker closings wherein, the 3rd circuit breaker cannot close a floodgate, the described mechanical interlocks for circuit breaker comprises: the first interlocking unit, the second interlocking unit and the 3rd interlocking unit, three interlocking units are connected with the transmission device of three circuit breakers respectively, it is characterized in that, between each chain unit, be connected by three transmission hawsers, described each interlocking unit comprises a support, in the front of support, lower lever is installed, upper lever, the first back-moving spring, the second back-moving spring, movable pulley and regulating block, lower plate and upper plate are installed at the back side of support,
In same interlocking unit, movable pulley is fixed on upper lever also rotatable, described movable pulley can rotation, and described movable pulley can rotate with described upper lever, regulating block is fixed on lower lever, and lower lever is connected with lower plate fixed conveyor, and upper lever is connected with upper plate fixed conveyor, the first back-moving spring is connected with upper lever and can drives upper lever to reset, and the second back-moving spring is connected with lower lever and can drives lower lever to reset;
In three interlocking units, the two ends of first hawser are separately fixed on the regulating block of the second interlocking unit and the regulating block of the 3rd interlocking unit, and centre is walked around the movable pulley of the first interlocking unit and can be driven its rotation; The two ends of second hawser are separately fixed on the regulating block of the first interlocking unit and the regulating block of the 3rd interlocking unit, and centre is walked around the movable pulley of the second interlocking unit and can be driven its rotation; The two ends of the 3rd hawser are separately fixed on the regulating block of the first interlocking unit and the regulating block of the second interlocking unit, and centre is walked around the movable pulley of the 3rd interlocking unit and can be driven its rotation.
2. the mechanical interlocks for circuit breaker according to claim 1, is characterized in that: on described movable pulley, being fixed with one does not affect the baffle plate that movable pulley rotates.
3. the mechanical interlocks for circuit breaker according to claim 1, it is characterized in that: described regulating block comprises the set screw that can regulate transmission cable length, the location hole passing through for transmission hawser, and described set screw is for clamping or unclamp the transmission hawser of location hole.
4. the mechanical interlocks for circuit breaker according to claim 1, it is characterized in that: one end of described upper lever is fixed with movable pulley, the other end of described upper lever is connected with one end of the first back-moving spring, the other end of described the first back-moving spring is fixed on support, one end of described lower lever is fixed with regulating block, the other end of described lower lever is connected with one end of the second back-moving spring, and the other end of described the second back-moving spring is fixed on support.
5. the mechanical interlocks for circuit breaker according to claim 4, it is characterized in that: the transmission hawser between described any two interlocking units is all through corresponding guide thimble, and the two ends of described each guide thimble are separately fixed on two supports of two interlocking units.
6. the mechanical interlocks for circuit breaker according to claim 5, it is characterized in that: described support comprise be fixedly connected with, and dismountable upper bracket and lower carriage, lever, upper lever, the first back-moving spring, the second back-moving spring, movable pulley, baffle plate and regulating block under installing in the front of upper bracket, plate and upper plate under installing at the back side of upper bracket, described guide thimble is all fixed on lower carriage.
7. the mechanical interlocks for circuit breaker according to claim 5, is characterized in that: described lower plate is connected with the on/off switch rotating shaft transmission of circuit breaker, and described upper plate is connected with the emergency brake-dividing device transmission of circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145320.7A CN102664112B (en) | 2012-05-10 | 2012-05-10 | Mechanical interlocking device for breakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210145320.7A CN102664112B (en) | 2012-05-10 | 2012-05-10 | Mechanical interlocking device for breakers |
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| CN102664112A CN102664112A (en) | 2012-09-12 |
| CN102664112B true CN102664112B (en) | 2014-12-03 |
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| CN201210145320.7A Active CN102664112B (en) | 2012-05-10 | 2012-05-10 | Mechanical interlocking device for breakers |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103578811B (en) * | 2013-10-30 | 2016-03-30 | 遵义长征电器制造有限公司 | Circuit breaker interlocking device |
| CN105609342B (en) * | 2016-03-11 | 2019-01-11 | 天津市百利电气有限公司 | A kind of low-voltage circuit breaker mechanical interlocks |
| CN106847638A (en) * | 2017-03-14 | 2017-06-13 | 江苏高博锐电气有限公司 | A kind of plug-in auxiliary contact |
| 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 |
| CN106952791B (en) * | 2017-05-18 | 2019-04-09 | 江苏大全凯帆开关有限公司 | A kind of breaker interlock and the breaker group with interlock |
| CN107833769B (en) * | 2017-11-01 | 2019-10-25 | 贵州泰永长征技术股份有限公司 | Interlocking mechanism and interlock |
| CN108257803B (en) * | 2018-02-02 | 2024-04-19 | 德力西电气有限公司 | Mechanical interlocking device of circuit breaker |
| CN112071721B (en) * | 2020-11-16 | 2021-02-19 | 汇网电气有限公司 | Circuit breaker interlocking switch device and safe low-voltage cabinet |
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| US6225581B1 (en) * | 1999-02-08 | 2001-05-01 | Square D Company | Installation comprising an electrical switchgear apparatus and a cable interlock |
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