CN102664112A - Mechanical interlocking device for breakers - Google Patents
Mechanical interlocking device for breakers Download PDFInfo
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- CN102664112A CN102664112A CN2012101453207A CN201210145320A CN102664112A CN 102664112 A CN102664112 A CN 102664112A CN 2012101453207 A CN2012101453207 A CN 2012101453207A CN 201210145320 A CN201210145320 A CN 201210145320A CN 102664112 A CN102664112 A CN 102664112A
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- lever
- interlocking unit
- circuit breaker
- fixed
- 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, the client proposes three circuit breaker interlockings and realizes that two unifications divide, and promptly two circuit breakers can close a floodgate simultaneously, and then the 3rd circuit breaker can't close a floodgate.And the mechanical interlocks function of existing DW45 circuit breaker does not contain two unification branches.Have on the market two one minute unreliable again.
Application number is 200920069544.8 Chinese patent " mechanical interlocks that is used for air circuit "; Introduced a kind of mechanical interlocks that can realize two unification branch functions; This mechanical interlocks comprises the first chain unit, the second chain unit and the 3rd chain unit; Three chain unit link to each other with three circuit breaker transmission devices respectively; Link to each other through the transmission flexible cord between each chain unit; Each chain unit comprises a support; Active plate, control board, first follower plate, second follower plate, first back-moving spring, second back-moving spring and reduction torsion spring are installed in the front of support; First group of plate and second group of plate are installed at the back side of support; Wherein the active plate in the first chain unit through two transmission flexible cords respectively with the second chain unit in first follower plate link to each other with the second follower plate transmission in the 3rd chain unit, the active plate in the second chain unit through two transmission flexible cords respectively with the first chain unit in second follower plate link to each other with the first follower plate transmission in the 3rd chain unit, the active plate in the 3rd chain unit pass through two transmission flexible cords respectively with the first chain unit in first follower plate link to each other with the second follower plate transmission in the second chain unit.The setting of an active plate and two follower plates is adopted in this invention, and six roots of sensation transmission flexible cord, realizes that the unification of two between three circuit breakers divides, 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 the object of the present invention is to provide a kind of mechanical interlocks that is used for circuit breaker in view of the above, is used for solving the problem of prior art complex structure, poor reliability.
For realizing above-mentioned purpose and other relevant purposes; The present invention provides a kind of mechanical interlocks that is used for circuit breaker, is used for realizing three circuit breakers, when two breaker closings wherein; The 3rd circuit breaker can't close a floodgate; The said mechanical interlocks that is used for circuit breaker comprises: first interlocking unit, second interlocking unit and the 3rd interlocking unit, and three interlocking units link to each other with the transmission device of three circuit breakers respectively, it is characterized in that; Link to each other through three transmission hawsers between each chain unit; Said each interlocking unit comprises a support, and down lever, upper lever, first back-moving spring, second back-moving spring, movable pulley and regulating block are installed in the front of support, the back side of support be equipped with set aside plate with on dial plate;
In same interlocking unit; Movable pulley is fixed on the upper lever and turns; Regulating block is fixed on down on the lever, following lever with set aside the plate fixed conveyor and be connected, upper lever is connected with last group plate fixed conveyor; First back-moving spring links to each other with upper lever and can drive upper lever and reset, and second back-moving spring links to each other with following lever and can drive down lever and reset;
In three interlocking units, the two ends of first hawser are separately fixed on the regulating block of regulating block and the 3rd interlocking unit of second interlocking unit, and the centre is walked around the movable pulley of first interlocking unit and can be driven its rotation; The two ends of second hawser are separately fixed on the regulating block of regulating block and the 3rd interlocking unit of first interlocking unit, and the centre is walked around the movable pulley of second interlocking unit and can be driven its rotation; The two ends of the 3rd hawser are separately fixed on the regulating block of regulating block and second interlocking unit of first interlocking unit, and the centre is walked around the movable pulley of the 3rd interlocking unit and can be driven its rotation.
Preferably, be fixed with one on the said movable pulley and do not influence the baffle plate that movable pulley rotates.
Preferably, said regulating block comprises the set screw that can regulate the transmission cable length, the location hole that supplies the transmission hawser to pass through, and said set screw is used for clamping or unclamping the transmission hawser of location hole.
Preferably; One end of said upper lever is fixed with movable pulley; The other end of said upper lever links to each other with an end of first back-moving spring, and the other end of said first back-moving spring is fixed on the support, and a said end of lever down is fixed with regulating block; The said other end of lever down links to each other with an end of second back-moving spring, and the other end of said second back-moving spring is fixed on the support.
Further, the transmission hawser between said any two interlocking units all passes corresponding guide thimble, and the two ends of said each guide thimble are separately fixed on two supports of two interlocking units.
Further; Said support comprises fixed connection, and dismountable upper bracket and lower carriage; Lever, upper lever, first back-moving spring, second back-moving spring, movable pulley, baffle plate and regulating block under the installation of the front of upper bracket; The back side of upper bracket install set aside version with on dial plate, said pilot sleeve all is fixed on the lower carriage.
Preferably, the said plate of setting aside links to each other with the on/off switch rotating shaft transmission of circuit breaker, and the said group plate of going up links to each other with the urgent switching-off device transmission of circuit breaker.
As stated, the mechanical interlocks that is used for circuit breaker of the present invention has following beneficial effect: part is less, simple in structure, reliability is high.
Description of drawings
Fig. 1 is shown as the mechanical interlocks Facad structure sketch map that is used for circuit breaker of the present invention.
Fig. 2 is shown as the mechanical interlocks reverse side structural representation that is used for circuit breaker of the present invention.
Fig. 3 is the regulating block structural representation.
Label declaration among the figure
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 following levers
12,22,32 3 upper levers
13,23,33 3 first back-moving springs
14,24,34 3 second back-moving springs
15,25,35 3 movable pulleys
16,26,36 3 regulating blocks
Set aside plate for 17,27,37 3
Go up for 18,28,38 3 and dial plate
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
Below by particular specific embodiment execution mode of the present invention is described, be familiar with this technological personage and can understand other advantages of the present invention and effect easily by the content that this specification disclosed.
See also Fig. 1 to Fig. 3.Notice; The appended graphic structure that illustrates of this specification, ratio, size etc.; All only in order to cooperate the content that specification disclosed, understanding and reading for being familiar with this technological personage, is not in order to limit the enforceable qualifications of the present invention; Event is the technical essential meaning of tool not; The adjustment of the modification of any structure, the change of proportionate relationship or size not influencing under effect that the present invention can produce and the purpose that can reach, all should still drop on disclosed technology contents and get in the scope that can contain.Simultaneously; Quoted in this specification as " on ", D score, " left side ", " right side ", " centre " reach the term of " " etc.; Also be merely be convenient to narrate clear, but not in order to limit the enforceable scope of the present invention, the change of its relativeness or adjustment; Under no essence change technology contents, when also being regarded as the enforceable category of the present invention.
The present invention provides a kind of mechanical interlocks that is used for circuit breaker, is used for realizing three circuit breakers, when two breaker closings wherein; The 3rd circuit breaker can't close a floodgate, and be as depicted in figs. 1 and 2, and this mechanical interlocks that is used for circuit breaker comprises: first interlocking unit 1, second interlocking unit 2 and the 3rd interlocking unit 3; Three interlocking units link to each other with the transmission device of three circuit breakers respectively, link to each other through three transmission hawsers 41,42,43 between each chain unit, and each interlocking unit comprises a support 10,20,30; Lever 11,21,31 down is installed in the front of support; Upper lever 12,22,32, first back-moving spring, 13,23,33, the second back-moving springs 14,24; 34, movable pulley 15,25,35, baffle plate 19,29,39 and regulating block 16,26,36; Be equipped with at the back side of support and set aside plate 17,27,37 with last group plate 18,28,38;
In same interlocking unit; For example in first interlocking unit 1, movable pulley 15 is fixed on an end and rotatable (but movable pulley 15 rotations, and movable pulley 15 can rotate with upper lever 12) of upper lever 12; Baffle plate 19 is fixed on does not influence its rotation on the movable pulley 15; The other end of upper lever 12 links to each other with an end of first back-moving spring 13, and the other end of first back-moving spring 13 is fixed on the support 10, and regulating block 16 is fixed on down an end of lever 11; The other end of following lever 11 links to each other with an end of second back-moving spring 14, and the other end of second back-moving spring 14 is fixed on the support 10; Following lever 11 with set aside plate 17 fixed conveyor and be connected; Make down lever 11 with set aside plate 17 and can rotate simultaneously; Upper lever 12 is connected with last group plate 18 fixed conveyor; Make upper lever 12 and last group plate 18 to rotate simultaneously, first back-moving spring 13 links to each other with upper lever 12 and can drive upper lever 12 and reset, and second back-moving spring 14 links to each other with following lever 11 and can drive down lever 11 and reset;
In three interlocking units, the two ends of first hawser 41 are separately fixed on the regulating block 36 of regulating block 26 and the 3rd interlocking unit of second interlocking unit, and the centre is walked around the movable pulley 15 of first interlocking unit and can be driven its rotation; The two ends of second hawser 42 are separately fixed on the regulating block 36 of regulating block 16 and the 3rd interlocking unit of first interlocking unit, and the centre is walked around the movable pulley 25 of second interlocking unit and can be driven its rotation; The two ends of the 3rd hawser 43 are separately fixed on the regulating block 26 of regulating block 16 and second interlocking unit of first interlocking unit; The 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 is used to prevent that transmission hawser 41,42,43 breaks away from movable pulleys 15,25,35.
Hawser between any two interlocking units all passes 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, be example with first interlocking unit 1, support 10 comprises fixed connection, and dismountable upper bracket 101 and lower carriage 102; Lever 11 under installing in the front of upper bracket 101, upper lever 12, first back-moving spring 13, second back-moving spring 14, movable pulley 15, baffle plate 19 and regulating block 16; The back side of upper bracket 101 install set aside plate 17 with on dial plate 18, pilot sleeve 5 is fixed on the lower carriage 102, the other end of first back-moving spring 13 is fixed on the lower carriage 102; The other end of second back-moving spring 14 is fixed on the upper bracket 101; With the design of support 10 separated into two parts, be convenient to when not needing fixed guide sleeve pipe 5, can lower carriage 102 be removed.
Be example with first interlocking unit 1, as shown in Figure 3, regulating block 16 comprises the set screw 161 that can regulate transmission hawser 42,43 length; And the location hole 162 that can supply second transmission hawser 42 to pass; The 3rd location hole that transmission hawser 43 passes 163, with the example that is adjusted to of transmission hawser 42, transmission hawser 42 passes 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, make transmission hawser 42 be 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 of regulating transmission hawser length, such as when needs are realized circuit breaker " closed two fens ", just need transfer the length of transmission hawser short.
Operation principle of the present invention is explained as follows:
The plate of setting aside among the present invention links to each other with the on/off switch rotating shaft of corresponding circuit breaker, set aside plate can capture the on/off switch state of circuit breaker and be delivered to the band regulating block lever on; Go up to dial plate and link to each other with the urgent switching-off device of corresponding circuit breaker, promptly switching-off device can spur combined floodgate aircraft frame and makes it can't hasp combined floodgate semiaxis, thereby realizes that corresponding circuit breaker can't close a floodgate.
When in first interlocking unit 1 down lever 11 receive when setting aside the switching signal that plate 17 passes over; Following lever 11 rotates counterclockwise; The movable pulley 25, the upper lever 22 that drive in second interlocking unit 2 through second transmission hawser 42 are rotated down; The movable pulley 35, the upper lever 32 that drive in the 3rd interlocking unit 3 through the 3rd hawser 43 simultaneously are rotated down, when motion finishes, and the upper lever 22,32 of second interlocking unit 2 and the 3rd interlocking unit 3; Go up group plate 28,38 and all rotate an angle, but this angle does not also reach the angle that makes urgent switching-off device action.
When the following lever 21 in second interlocking unit 2 receives when setting aside the switching signal that plate 27 passes over; Following lever 21 rotates counterclockwise; The movable pulley 15, the upper lever 12 that drive in first interlocking unit 1 through first transmission hawser 41 are rotated down; The movable pulley 35, the upper lever 32 that drive in the 3rd interlocking unit 3 through the 3rd transmission hawser 43 simultaneously are rotated down, when motion finishes, the upper lever 12 of first interlocking unit 1, on dial angle of plate 18 rotations; But this angle does not also reach the angle that makes urgent switching-off device action; This moment the 3rd interlocking unit 3 upper lever 32, on dial plate 38 and rotate an angle once more, the angle stack of this angle and rotation last time reaches the angle that urgent switching-off device is moved; So the urgent switching-off device action of the 3rd circuit breaker makes the 3rd circuit breaker that links to each other with the 3rd interlocking unit to close a floodgate.
When the following lever 11 in first interlocking unit 1 receives when setting aside the sub-gate signal that plate 17 passes over; Following lever 11 clockwise rotates; Thereby loosen the control to second transmission hawser 42 and the 3rd transmission hawser 43, make that the upper lever 22 in second interlocking unit 2 is turned clockwise by 23 pullings of first back-moving spring, upper lever 32 is turned clockwise by 33 pullings of first back-moving spring in the 3rd interlocking unit 3; When motion finishes; Upper lever 22 in second interlocking unit 2 resets to initial conditions, and the upper lever 32 of the 3rd interlocking unit 3 discharges an angle, and the urgent switching-off device that is attached thereto can't move.
Receive when setting aside switching signal that plate 37 pass over when the following lever 31 in the 3rd interlocking unit 3 this moment; Following lever 31 rotates counterclockwise; The movable pulley 15, the upper lever 12 that drive in first interlocking unit through first hawser 41 are rotated down; The movable pulley 25, the upper lever 22 that drive in second interlocking unit through second transmission hawser 42 simultaneously are rotated down, when motion finishes, the upper lever 12 of first interlocking unit 1, on dial plate 18 and rotate an angle again; The angle stack of this angle and rotation last time; Reach the angle that makes urgent switching-off device action, so the urgent switching-off device action of first circuit breaker makes first circuit breaker that links to each other with first interlocking unit 1 to close a floodgate; The upper lever 22 of second interlocking unit, on dial plate 28 again from angle of initial condition rotation, but this angle does not also reach the angle that makes urgent switching-off device action.Under this kind state, second circuit breaker and the 3rd circuit breaker all are in "on" position, but first circuit breaker then can't close a floodgate.
In sum, the present invention is used for the mechanical interlocks of circuit breaker, utilize movable pulley can be laborsaving the principle of one times of distance of half-sum expense; Realize any two breaker closings, then the 3rd circuit breaker can not close a floodgate, and it is simple in structure; Tear open and transfer conveniently, reliability is high, highly versatile.So the present invention has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
The foregoing description is illustrative principle of the present invention and effect thereof only, but not is used to limit the present invention.Any be familiar with this technological personage all can be under spirit of the present invention and category, the foregoing description is modified or is changed.Therefore, have common knowledge the knowledgeable in the affiliated such as technical field, must contain by claim of the present invention not breaking away from all equivalence modifications of being accomplished under disclosed spirit and the technological thought or changing.
Claims (7)
1. a mechanical interlocks that is used for circuit breaker is used for realizing three circuit breakers, when two breaker closings wherein; The 3rd circuit breaker can't close a floodgate; The said mechanical interlocks that is used for circuit breaker comprises: first interlocking unit, second interlocking unit and the 3rd interlocking unit, and three interlocking units link to each other with the transmission device of three circuit breakers respectively, it is characterized in that; Link to each other through three transmission hawsers between each chain unit; Said each interlocking unit comprises a support, and down lever, upper lever, first back-moving spring, second back-moving spring, movable pulley and regulating block are installed in the front of support, the back side of support be equipped with set aside plate with on dial plate;
In same interlocking unit; Movable pulley is fixed on the upper lever and turns; Regulating block is fixed on down on the lever, following lever with set aside the plate fixed conveyor and be connected, upper lever is connected with last group plate fixed conveyor; First back-moving spring links to each other with upper lever and can drive upper lever and reset, and second back-moving spring links to each other with following lever and can drive down lever and reset;
In three interlocking units, the two ends of first hawser are separately fixed on the regulating block of regulating block and the 3rd interlocking unit of second interlocking unit, and the centre is walked around the movable pulley of first interlocking unit and can be driven its rotation; The two ends of second hawser are separately fixed on the regulating block of regulating block and the 3rd interlocking unit of first interlocking unit, and the centre is walked around the movable pulley of second interlocking unit and can be driven its rotation; The two ends of the 3rd hawser are separately fixed on the regulating block of regulating block and second interlocking unit of first interlocking unit, and the centre is walked around the movable pulley of the 3rd interlocking unit and can be driven its rotation.
2. the mechanical interlocks that is used for circuit breaker according to claim 1 is characterized in that: being fixed with one on the said movable pulley does not influence the baffle plate that movable pulley rotates.
3. the mechanical interlocks that is used for circuit breaker according to claim 1; It is characterized in that: said regulating block comprises the set screw that can regulate the transmission cable length, the location hole that supplies the transmission hawser to pass through, and said set screw is used for clamping or unclamping the transmission hawser of location hole.
4. the mechanical interlocks that is used for circuit breaker according to claim 1; It is characterized in that: an end of said upper lever is fixed with movable pulley; The other end of said upper lever links to each other with an end of first back-moving spring, and the other end of said first back-moving spring is fixed on the support, and a said end of lever down is fixed with regulating block; The said other end of lever down links to each other with an end of second back-moving spring, and the other end of said second back-moving spring is fixed on the support.
5. the mechanical interlocks that is used for circuit breaker according to claim 4; It is characterized in that: the transmission hawser between said any two interlocking units all passes corresponding guide thimble, and the two ends of said each guide thimble are separately fixed on two supports of two interlocking units.
6. the mechanical interlocks that is used for circuit breaker according to claim 5; It is characterized in that: said support comprises fixed connection, and dismountable upper bracket and lower carriage; Lever, upper lever, first back-moving spring, second back-moving spring, movable pulley, baffle plate and regulating block under the installation of the front of upper bracket; The back side of upper bracket install set aside version with on dial plate, said pilot sleeve all is fixed on the lower carriage.
7. the mechanical interlocks that is used for circuit breaker according to claim 5 is characterized in that: the said plate of setting aside links to each other with the on/off switch rotating shaft transmission of circuit breaker, and the said group plate of going up links to each other with the urgent switching-off 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 true CN102664112A (en) | 2012-09-12 |
| CN102664112B 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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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103578811A (en) * | 2013-10-30 | 2014-02-12 | 遵义长征电器制造有限公司 | Circuit breaker interlocking mechanism |
| CN105609342A (en) * | 2016-03-11 | 2016-05-25 | 天津市百利电气有限公司 | Mechanical interlocking apparatus for low-voltage circuit breakers |
| 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 |
| CN106952791A (en) * | 2017-05-18 | 2017-07-14 | 南京大全电气研究院有限公司 | A kind of breaker interlock and the breaker group with interlock |
| CN107833769A (en) * | 2017-11-01 | 2018-03-23 | 贵州泰永长征技术股份有限公司 | Interlocking mechanism and interlock |
| CN108257803A (en) * | 2018-02-02 | 2018-07-06 | 德力西电气有限公司 | A kind of mechanical interlocking device for circuit breaker |
| 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 |
| CN112071721A (en) * | 2020-11-16 | 2020-12-11 | 汇网电气有限公司 | Circuit breaker interlocking switch device and safe low-voltage cabinet |
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| 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 |
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| CN105609342A (en) * | 2016-03-11 | 2016-05-25 | 天津市百利电气有限公司 | Mechanical interlocking apparatus for low-voltage circuit breakers |
| 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 |
| CN106952791A (en) * | 2017-05-18 | 2017-07-14 | 南京大全电气研究院有限公司 | A kind of breaker interlock and the breaker group with interlock |
| 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 |
| CN107833769A (en) * | 2017-11-01 | 2018-03-23 | 贵州泰永长征技术股份有限公司 | Interlocking mechanism and interlock |
| CN108257803A (en) * | 2018-02-02 | 2018-07-06 | 德力西电气有限公司 | A kind of mechanical interlocking device for circuit breaker |
| CN108257803B (en) * | 2018-02-02 | 2024-04-19 | 德力西电气有限公司 | Mechanical interlocking device of circuit breaker |
| CN112071721A (en) * | 2020-11-16 | 2020-12-11 | 汇网电气有限公司 | Circuit breaker interlocking switch device and safe low-voltage cabinet |
| 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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| CN102664112B (en) | 2014-12-03 |
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