CN201355579Y - Mechanical interlocking mechanism of low-voltage circuit breaker - Google Patents
Mechanical interlocking mechanism of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN201355579Y CN201355579Y CNU2009200375045U CN200920037504U CN201355579Y CN 201355579 Y CN201355579 Y CN 201355579Y CN U2009200375045 U CNU2009200375045 U CN U2009200375045U CN 200920037504 U CN200920037504 U CN 200920037504U CN 201355579 Y CN201355579 Y CN 201355579Y
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- China
- Prior art keywords
- wire rope
- circuit breaker
- lever
- steel wire
- pull bar
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Abstract
The utility model relates to a mechanical interlocking mechanism of a low-voltage circuit breaker. The mechanism comprises two sets of movement mechanisms which are respectively mounted on lateral plates of two circuit breakers and are the same in structures, and two wire ropes which are respectively connected with two sets of movement mechanisms. Each set of movement mechanisms comprises a chassis, a pull rod, a spring, an upper lever, a lower lever and an end cover. The end cover is mounted on the chassis, an upper pin shaft and a lower pin shaft which are both mounted on the chassis are respectively arranged in an upper guide groove and a lower guide groove of the vertically arranged pull rod, a switching half shaft of the circuit breaker is connected with the upper lever, the other end of the upper lever is arranged in a notch of the pull rod, two ends of the spring are respectively mounted on the upper portion of the chassis and the pull rod, a main shaft of the circuit breaker is connected with the lower level, each end of a first wire rope and a second wire rope is respectively connected with the pull rod of one set of movement mechanisms and the lower level, and the other end of the first wire rope and the second wire rope is respectively connected with the lower level of the other set of movement mechanisms and the pull level. The mechanical interlocking mechanism has the advantages of simple structure, small volume and enclosed contour.
Description
Technical field
The utility model relates to a kind of mechanical interlock mechanism of low-voltage circuit breaker, belongs to the fixed breaker technical field of low pressure.
Background technology
Omnipotent breaker uses as main switch in low-voltage distribution system usually because defencive function is perfect.Reliability for raising system power supply adopts dual power supply usually, i.e. one road main power supply and No. one stand-by power supply, but the two-way power supply do not allow to power simultaneously, otherwise will cause short circuit accident.Therefore, in low-voltage distribution system between two omnipotent breakers of main switch of two-way power supply except that electrical control interlocking, also must select the circuit breaker that possesses the mechanical interlocking function between two circuit breakers for use.The circuit breaker of common band mechanical interlocking function is generally withdrawable circuit breaker, though withdrawable circuit breaker is easy to maintenance, volume is bigger, the price comparison costliness, and its mechanical interlock mechanism is more complicated also.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, and volume is little, the mechanical interlock mechanism of the low-voltage circuit breaker that can be used for two fixed circuit breakers of profile sealing.
The utility model is that the technical scheme that achieves the above object is: a kind of mechanical interlock mechanism of low-voltage circuit breaker, by being installed in respectively on two circuit breaker side plates, and two groups of actuating mechanisms that structure is identical and first steel wire rope and second steel wire rope formation that connect two groups of actuating mechanisms respectively, it is characterized in that: described every group of actuating mechanism comprises base, pull bar, spring, upper lever, following lever and end cap, end cap is installed on the base, the upper pin and the lower bearing pin that are installed on the base are separately positioned in the upper rail and lower guide channel of the perpendicular pull bar of putting, the combined floodgate semiaxis of circuit breaker is connected with upper lever, and the other end of upper lever is arranged in the notch of pull bar, the two ends of spring are installed in respectively on base top and the pull bar, the main shaft of circuit breaker is connected with following lever, one end of first steel wire rope and second steel wire rope is connected on the pull bar and following lever of set mechanism, and the other end of first steel wire rope and second steel wire rope is connected on the following lever and pull bar of another group actuating mechanism.
Two groups of identical actuating mechanism and two steel wire ropes of structure constitute the utility model on two circuit breaker side plates by being installed in, following lever on two groups the actuating mechanism, pull bar is connected with two steel wire ropes respectively, wherein play lever to be connected with the main shaft of circuit breaker, and the control that moves up and down of pull bar is connected upper lever with the combined floodgate semiaxis, therefore spindle axis counterclockwise rotation when combined floodgate is opened circuit in its in left side, the following lever that is connected with this circuit breaker also rotates drive second steel wire rope thereupon in the same way and moves up, the pull bar that spurs another actuating mechanism by this steel wire rope moves down, the combined floodgate semiaxis that pull bar is then pressing the upper lever in this actuating mechanism to make the circuit breaker in right side be rotates counterclockwise, make that the planar linkage mechanism in the circuit breaker operation mechanism in right side can not snap close, so this circuit breaker can't be closed.Two circuit breakers are realized interlocking under the effect of mechanical interlock mechanism, guaranteed the security of operation of distribution system.Interlocking device of the present utility model is closed state after increasing end cap, can prevent outside interference.
The shift position of the utility model pull bar can be by the adjusting screw(rod) adjustment, improved the functional reliability of interlocking device, owing to adopt the flexibility of steel wire rope and soft drawn bar to connect between two groups of actuating mechanisms, in certain distance, can horizontal or vertically dispose during use, improved the use flexibility.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the left view of Fig. 1.
Wherein: 1-base, 2-bolt, lever under the 3-, 4-axle, 5-screw, 6-second takes turns, 7-second steel wire rope, 8-adjusting screw(rod), 9-nut, the soft connecting rod of 10-, the 11-screw, 12-first steel wire rope, 13-screw, 14-holder, the 15-first round, the 16-lower bearing pin, 17-pull bar, 17-1-lower guide channel, 17-2-upper rail, 17-3-notch, 18-combined floodgate semiaxis, 19-upper lever, 20-axle, 21-upper pin, the 22-spring, 23-main shaft, 24-end cap, 25-screw.
Embodiment
See shown in Fig. 1,2, the mechanical interlock mechanism of low-voltage circuit breaker of the present utility model is by being installed on two circuit breaker side plates respectively and two groups of actuating mechanisms that structure is identical and first steel wire rope 12 and second steel wire rope 7 that connect two groups of actuating mechanisms respectively constitute.See shown in Fig. 1,2, every group of actuating mechanism comprises base 1, pull bar 17, spring 22, upper lever 19, following lever 3 and end cap 24, two bases 1 are installed on the side plate (not shown) of two circuit breakers by bolt 2 and screw 11 respectively, end cap 24 is installed on the base 1 by screw 25, makes operating mechanism not be subjected to external disturbance.See shown in Figure 1ly, upper pin 21 of the present utility model and lower bearing pin 16 are installed on the base 1, and upper pin 21 and lower bearing pin 16 are separately positioned in the upper rail 17-2 and lower guide channel 17-1 of the perpendicular pull bar of putting 17, can carry out spacing to pull bar 17.See shown in Figure 1, the combined floodgate semiaxis 18 of circuit breaker is connected with upper lever 19, these upper lever 19 1 ends are provided with flat mortise, the flat tenon axle of combined floodgate semiaxis 18 is installed in the flat mortise on the upper lever 19 and is screwed, combined floodgate semiaxis 18 is connected with upper lever 19, and the other end of upper lever 19 is arranged in the notch 17-3 of pull bar 17, the other end that is preferably in upper lever 19 is equipped with axle 20, axle 20 is arranged in the notch 17-3 of pull bar 17, the axial line that wraps lock semiaxis 18 by pull bar 17 control upper levers 19 rotates, the two ends of spring 22 are installed in respectively on base 1 top and the pull bar 17, by spring 22 pull bar 17 are automatically reset.
See shown in Figure 1, lever 3 down of the present utility model is connected with the main shaft 23 of circuit breaker, this time lever 3 one ends are provided with flat mortise, the flat mortise that the flat tenon axle of main shaft 23 is installed in down on the lever 3 is interior and fixing with screw 5, one end of first steel wire rope 12 and second steel wire rope 7 is connected on the pull bar 17 and following lever 3 of set mechanism, the other end of first steel wire rope 12 and second steel wire rope 7 is connected on the following lever 3 and pull bar 17 of another group actuating mechanism, the bottom of this pull bar 17 is equipped with the first round 15, the first round 15 is installed in down on the lever 3 by axle, and 12 interlockings of first steel wire rope are fixed in the outer groove of the first round 15 and by holder 14 usefulness screws 13; Equally, the opposite side of following lever 3 is equipped with second and takes turns 6, the second and take turns 6 and be installed on the base 1 by axle 4, and 7 interlockings of second steel wire rope are taken turns in 6 the outer groove second and fixed by holder 14 usefulness screws 13, by two steel wire ropes two groups of actuating mechanisms are connected, and realize interlocking.
See shown in Figure 1, the utility model also is provided with two soft connecting rods 10 in the outside of base 1, the two ends of soft connecting rod 10 are fixed with adjusting screw(rod) 8 respectively, first steel wire rope 12 and second steel wire rope 7 are through respectively on separately the adjusting screw(rod) 8 and soft connecting rod 10, adjusting screw(rod) 8 is installed in the bottom of two bases 1 respectively by nut 9, come control pull rod 17 height and positions by regulating adjusting screw(rod) 8, easy to adjust reliable.
See shown in Fig. 1,2, during the utility model work, main shaft 23 rotates counterclockwise when the breaker closing of the left side, following lever 3 also rotates thereupon in the same way, second takes turns 6 moves up drive second steel wire rope 7 upwards, and the first round 15 of the right circuit breaker is under the drive of second steel wire rope 7, driving pull bar 17 moves down and is pressing upper lever 19 and the combined floodgate semiaxis 18 of the right circuit breaker is rotated counterclockwise, make that the planar linkage mechanism in the circuit breaker operation mechanism of the right can not snap close, therefore the right circuit breaker can't be closed.If want the right breaker closing, then should make left side breaker open operation, the main shaft 23 on the left side clockwise rotates, second steel wire rope 7 unclamps, the pull bar 17 on the right moves up under spring 22 pullings, combined floodgate semiaxis 18 resets under self spring action, the planar linkage mechanism snap close, and the right circuit breaker can carry out closing operation.In like manner, main shaft 23 rotates counterclockwise when the breaker closing of the right, following lever 3 also rotates thereupon in the same way, second takes turns 6 moves up drive first steel wire rope 12 upwards, and the first round 15 of left side circuit breaker is under the drive of first steel wire rope 12, drive pull bar 17 and move down and pressing upper lever 19 and the combined floodgate semiaxis 18 of left side circuit breaker is rotated counterclockwise, make that the planar linkage mechanism in the circuit breaker operation mechanism of the left side can not snap close, so left side circuit breaker can't be closed.If want left side breaker closing, then should make the right breaker open operation, the main shaft 23 on the right clockwise rotates, first steel wire rope 12 unclamps, the pull bar 17 on the left side moves up under spring 22 pullings, combined floodgate semiaxis 18 resets under self spring action, the planar linkage mechanism snap close, and left side circuit breaker can carry out closing operation.Therefore two circuit breakers are realized interlocking under the effect of mechanical interlock mechanism, guarantee that distribution system, still can safe operation under the situation of two-way power supply power supply.
Claims (5)
1, a kind of mechanical interlock mechanism of low-voltage circuit breaker, by being installed in respectively on two circuit breaker side plates, and two groups of actuating mechanisms that structure is identical and first steel wire rope (12) and second steel wire rope (7) formation that connect two groups of actuating mechanisms respectively, it is characterized in that: described every group of actuating mechanism comprises base (1), pull bar (17), spring (22), upper lever (19), following lever (3) and end cap (24), end cap (24) is installed on the base (1), the upper pin (21) and the lower bearing pin (16) that are installed on the base (1) are separately positioned in the upper rail (17-2) and lower guide channel (17-1) of the perpendicular pull bar of putting (17), the combined floodgate semiaxis (18) of circuit breaker is connected with upper lever (19), and the other end of upper lever (19) is arranged in the notch (17-3) of pull bar (17), and the two ends of spring (22) are installed in respectively on base (1) top and the pull bar (17); Described lever (3) down is connected with the main shaft (23) of circuit breaker, one end of first steel wire rope (12) and second steel wire rope (7) is connected on the pull bar (17) and following lever (3) of set mechanism, and the other end of first steel wire rope (12) and second steel wire rope (7) is connected on the following lever (3) and pull bar (17) of another group actuating mechanism.
2, the mechanical interlock mechanism of low-voltage circuit breaker according to claim 1, it is characterized in that: the outside of base (1) also is provided with two soft connecting rods (10), the two ends of soft connecting rod (10) are fixed with adjusting screw(rod) (8) respectively, first steel wire rope (12) and second steel wire rope (7) are through respectively on separately the adjusting screw(rod) (8) and soft connecting rod (10), and adjusting screw(rod) (8) is installed in the bottom of two bases (1) respectively by nut (9).
3, the mechanical interlock mechanism of low-voltage circuit breaker according to claim 1, it is characterized in that: the bottom of described pull bar (17) is equipped with the first round (15), and first steel wire rope (12) interlocking is fixed with screw (13) in the outer groove of the first round (15) and by holder (14); The opposite side of described down lever (3) is equipped with second and takes turns (6), and second steel wire rope (7) interlocking is taken turns in the outer groove of (6) second and fixed with screw (13) by holder (14).
4, the mechanical interlock mechanism of low-voltage circuit breaker according to claim 1, it is characterized in that: described upper lever (19) one ends are provided with flat mortise, the flat tenon axle of combined floodgate semiaxis (18) is installed in the flat mortise on the upper lever (19) and is screwed, the other end of upper lever (19) is equipped with axle (20), and axle (20) is arranged in the notch (17-3) of pull bar (17).
5, the mechanical interlock mechanism of low-voltage circuit breaker according to claim 1 is characterized in that: described down lever (3) one ends are provided with flat mortise, and it is interior and be screwed that the flat tenon axle of main shaft (23) is installed in play flat mortise on the lever (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200375045U CN201355579Y (en) | 2009-02-06 | 2009-02-06 | Mechanical interlocking mechanism of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200375045U CN201355579Y (en) | 2009-02-06 | 2009-02-06 | Mechanical interlocking mechanism of low-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201355579Y true CN201355579Y (en) | 2009-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200375045U Expired - Lifetime CN201355579Y (en) | 2009-02-06 | 2009-02-06 | Mechanical interlocking mechanism of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201355579Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664112A (en) * | 2012-05-10 | 2012-09-12 | 上海良信电器股份有限公司 | Mechanical interlocking device for breakers |
| CN102832060A (en) * | 2011-06-15 | 2012-12-19 | 上海电科电器科技有限公司 | Interlocking device of change-over switch |
| CN105609343A (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 |
| 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 |
| 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 |
| CN107546052A (en) * | 2017-10-18 | 2018-01-05 | 罗格朗低压电器（无锡）有限公司 | Automatic change-over prevents the interlock of pairing lock |
| 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 |
| CN108269707A (en) * | 2018-01-30 | 2018-07-10 | 南京华脉科技股份有限公司 | A kind of mechanical interlock and circuit breaker box |
| 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 |
| CN109192567A (en) * | 2018-08-24 | 2019-01-11 | 贵州泰永长征技术股份有限公司 | A kind of mechanical interlock mechanism and mechanical interlocks with one-out-three function |
-
2009
- 2009-02-06 CN CNU2009200375045U patent/CN201355579Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832060A (en) * | 2011-06-15 | 2012-12-19 | 上海电科电器科技有限公司 | Interlocking device of change-over switch |
| CN102832060B (en) * | 2011-06-15 | 2014-12-31 | 上海电科电器科技有限公司 | Interlocking device of change-over switch |
| CN102664112B (en) * | 2012-05-10 | 2014-12-03 | 上海良信电器股份有限公司 | Mechanical interlocking device for breakers |
| CN102664112A (en) * | 2012-05-10 | 2012-09-12 | 上海良信电器股份有限公司 | Mechanical interlocking device for breakers |
| CN105609343A (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 |
| 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 |
| 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 |
| 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 |
| CN107546052A (en) * | 2017-10-18 | 2018-01-05 | 罗格朗低压电器（无锡）有限公司 | Automatic change-over prevents the interlock of pairing lock |
| 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 |
| 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 |
| CN108269707A (en) * | 2018-01-30 | 2018-07-10 | 南京华脉科技股份有限公司 | A kind of mechanical interlock and circuit breaker box |
| CN109192567A (en) * | 2018-08-24 | 2019-01-11 | 贵州泰永长征技术股份有限公司 | A kind of mechanical interlock mechanism and mechanical interlocks with one-out-three function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160826 Address after: 213025 No. 156 Dongfang Dong Road, Qishuyan District, Jiangsu, Changzhou Patentee after: Jiangsu Kailong Electronics Co., Ltd. Patentee after: JIANGSU LUOKAI MECHANICAL & ELECTRICAL CO., LTD. Address before: 213025 No. 126, Dongfang Avenue, Qishuyan Economic Development Zone, Jiangsu, Changzhou Patentee before: Jiangsu Kailong Electronics Co., Ltd. Patentee before: Jiangsu Luokai Mechanical and Electrical Manufacturing Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091202 |