CN102709082A - Mechanical mutual-locking device of molded case circuit breaker - Google Patents
Mechanical mutual-locking device of molded case circuit breaker Download PDFInfo
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- CN102709082A CN102709082A CN2012101957393A CN201210195739A CN102709082A CN 102709082 A CN102709082 A CN 102709082A CN 2012101957393 A CN2012101957393 A CN 2012101957393A CN 201210195739 A CN201210195739 A CN 201210195739A CN 102709082 A CN102709082 A CN 102709082A
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- circuit breaker
- clamp
- brake switch
- interlocking
- breaker
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Abstract
The invention provides a mechanical mutual-locking device of a molded case circuit breaker, and belongs to the field of accessories of circuit breakers. The molded case circuit breaker comprises a first circuit breaker and a second circuit breaker which are fixed on rack support bars of a distribution box rack, wherein a first hand brake switch is arranged on the first circuit breaker and a second hand brake switch is arranged on the second circuit breaker. The mechanical mutual-locking device is characterized by comprising an interlocking clamping plate and a central shaft, wherein the central shaft is mounted on the rack support bars and positioned between the first circuit breaker and the second circuit breaker; one shaft end of the central shaft is narrowed to form a clamping plate shaft; a shaft hole used for being matched with the clamping plate shaft to rotationally mount the interlocking clamping plate on the central shaft is formed in the middle of the interlocking clamping plate; and a first hand brake switch groove cavity used for being matched with the first hand brake switch is formed on one side of the interlocking clamping plate, and a second hand brake switch groove cavity used for being matched with the second hand brake switch is formed on the other side of the interlocking clamping plate. The mechanical mutual-locking device has the advantages that major accidents of short-circuits of two ways of power sources caused by manual misoperation can be prevented; and besides, the structure is simple, the size is small, the mounting is convenient, and the action reliability can be guaranteed.
Description
Technical field
The invention belongs to the attachment technique field of circuit breaker, be specifically related to a kind of mechanical interlock of breaker of plastic casing, be applied in the manual power converting system, mechanical interlocked as between two breaker of plastic casing
Background technology
In the manual power converting system, traditional breaker of plastic casing adopts A.C. contactor to switch usually
, breaker of plastic casing be isolate in the contactor upper end, overload and short-circuit protection.But itself does not have the mechanical interlocking protective device this double-power supply switching device, and the deficiency that therefore exists is: take place to be short-circuited at a circuit easily when bonding when error or contactor take place electrical interlock, cause unpredictable consequence.At present; The mechanical interlocks of more common breaker of plastic casing generally adopts the flexible steel wire cable brake on the market, though its structure is also comparatively simple, volume is big; Because the flexible steel wire cable brake can influence the wiring of circuit breaker outlet load copper bar when ensureing the movable effective radius of cable brake; And the elongation easily under the pulling of spring of the steel wire in the cable brake, its end bearing is prone to come off, and can influence the reliability of mechanical interlocking thus.
To above-mentioned existing problems, the applicant has carried out actively and effectively exploring, and the technical scheme that will introduce below produces under this background
Summary of the invention
task of the present invention is the mechanical interlock that a kind of breaker of plastic casing will be provided, and it is simple in structure, volume is little, easy for installation, safe in utilization, reliable in action property height.
task of the present invention is accomplished like this; A kind of mechanical interlock of breaker of plastic casing; Described breaker of plastic casing comprises first circuit breaker and second circuit breaker on the support bar that is fixed on the distribution tank tower; Has the first rim brake switch on described first circuit breaker; Have the second rim brake switch on described second circuit breaker, be characterized in: described mechanical interlock comprises an interlocking clamp and a central shaft, and described central shaft is installed on the support bar and is positioned at the centre position of first circuit breaker, second circuit breaker; Narrow the contracting of axle head of central shaft and be formed with the clamp axle; The centre of said interlocking clamp offers and is used for cooperating with the clamp axle and the clamp of will interlocking is installed to the axis hole that central shaft gets on rotationally, and a side of said interlocking clamp offers the first rim brake switch vallecular cavity that is used for cooperating with the first rim brake switch, and the opposite side of said interlocking clamp offers the second rim brake switch vallecular cavity that is used for cooperating with the second rim brake switch.
in a specific embodiment of the present invention, the described first rim brake switch vallecular cavity is a deep-slotted chip breaker, on the interlocking clamp above the said deep-slotted chip breaker, has extended push pedal on first.
are in another specific embodiment of the present invention; The described second rim brake switch vallecular cavity is a rectangular channel; On the interlocking clamp above the said rectangular channel, extend push pedal on second, on the interlocking clamp below the said rectangular channel, extended push pedal down.
are in another specific embodiment of the present invention; Be formed with thread segment on the clamp axle of said central shaft; Described interlocking clamp is located on the clamp axle through shaft hole sleeve, and the clamp of will interlocking is installed on the central shaft rotationally by the thread segment locking of packing ring, nut and clamp axle in the outside of interlocking clamp.
the present invention is in the using and the reserved and subsequent use each other two-way power conversion system, owing to adopted above-mentioned easy mechanical interlock, when two circuit breakers all are in the separating brake position; The interlocking clamp is horizontal, and when any breaker switching-on operation, the rim brake switch of circuit breaker drives the rotation of interlocking clamp; Another circuit breaker is spacing in the separating brake position, thus realize interlocking, thereby can effectively prevent manual misoperation and cause the major accident of two-way power supply short circuit; Also have simple in structure simultaneously; Volume is little, and is easy for installation, can guarantee the advantage of reliable in action property.
Description of drawings
Fig. 1 is one embodiment of the invention three-dimensional exploded view.
Fig. 2 is the planar structure sketch map that first circuit breaker, second circuit breaker are in gate-dividing state simultaneously.
Fig. 3 is that first circuit breaker is in gate-dividing state, the planar structure sketch map when second circuit breaker is in "on" position.
Fig. 4 is that first circuit breaker is in "on" position, the planar structure sketch map when second circuit breaker is in gate-dividing state.
Among
figure: 1. distribution tank tower, 11. support bars; 2. central shaft, 21. cards are pulled axle, 211. thread segments, 22. packing rings, 23. nuts; 3. first circuit breaker, 31. first rim brake switches; 4. second circuit breaker, 41. second rim brake switches; 5. push pedal on push pedal on interlocking clamp, 51. axis holes, the 52. first rim brake switch vallecular cavities, 521. first, the 53. second rim brake switch vallecular cavities, 531. second, 532. times push pedals.
Embodiment
can be expressly understood technical spirit of the present invention and beneficial effect more for the auditor that the makes Patent Office especially public; The applicant general elaborates with the mode of embodiment below; But the description to embodiment all is not the restriction to technical scheme of the present invention, any according to the present invention design done only for pro forma but not substantial equivalent transformation all should be regarded as technical scheme category of the present invention.
see also Fig. 1; A kind of mechanical interlock of breaker of plastic casing; Described breaker of plastic casing comprises first circuit breaker 3 and second circuit breaker 4 on the support bar 11 that is fixed on distribution tank tower 1; Have the first rim brake switch 31 on described first circuit breaker 3, have the second rim brake switch 41 on described second circuit breaker 4.Described mechanical interlock comprises an interlocking clamp 5 and a central shaft 2; Described central shaft 2 is installed on the support bar 11 and is positioned at the centre position of first circuit breaker 3, second circuit breaker 4; Narrow the contracting of axle head of central shaft 2 and be formed with clamp axle 21; On clamp axle 21, be formed with thread segment 211; The centre of said interlocking clamp 5 offers and is used for cooperating with clamp axle 21 and the clamp 5 of will interlocking is installed to the axis hole 51 that central shaft 2 gets on rotationally; One side of said interlocking clamp 5 offers the first rim brake switch vallecular cavity 52 that is used for cooperating with the first rim brake switch 31, and the described first rim brake switch vallecular cavity 52 is a deep-slotted chip breaker, on the interlocking clamp 5 above the said deep-slotted chip breaker, has extended push pedal 521 on first; The opposite side of said interlocking clamp 5 offers the second rim brake switch vallecular cavity 53 that is used for cooperating with the second rim brake switch 31; The described second rim brake switch vallecular cavity 53 is a rectangular channel, on the interlocking clamp 5 above the said rectangular channel, has extended push pedal 531 on second, on the interlocking clamp 5 below the said rectangular channel, has extended push pedal 532 down.Described interlocking clamp 5 is set on the clamp axle 21 through axis hole 51 rotationally, and the clamp 5 of will interlocking is installed on the central shaft 2 rotationally with thread segment 211 lockings of clamp axle 21 by packing ring 22, nut 23 in the outside of interlocking clamp 5.
please continue to consult Fig. 1 and combine Fig. 2, Fig. 3 and Fig. 4; The present invention in use; The axis hole 51 of interlocking clamp 5 through the centre is installed in rotationally on the clamp axle 21 of central shaft 2 and, constitutes one and have mechanical interlocked twin-power switch by packing ring 22, nut 23 lockings.When first circuit breaker 3, when second circuit breaker 4 all is in the separating brake position, interlocking clamp 5 is horizontal (see figure 2); (see figure 4) when first circuit breaker 3 closes a floodgate; Interlocking clamp 5 is motionless; Continue to keep level, but the first rim brake switch 31 of first circuit breaker 3 moves up to closing position by the separating brake position, with first on push pedal 521 near; And the second rim brake switch 41 of second circuit breaker 4 and following push pedal 532 near and the second rim brake switch 41 is vised, make the second rim brake switch 41 of second circuit breaker 4 can only be in the separating brake position.If this moment is second circuit breaker, 4 desires combined floodgate; Then the second rim brake switch 41 is upwards promoted; Must drive interlocking clamp 5 and do counterclockwise to rotate, force the first rim brake switch 31 of first circuit breaker 3 under the effect of push pedal on first 521, to move downward (see figure 3) to the disjunction position around central shaft 2.Otherwise; If this moment, the first rim brake switch 31 of first circuit breaker 3 moved up to closing position; Must drive interlocking clamp 5 and do the clockwise direction rotation around central shaft 2; And then the second rim brake switch 41 that drives second circuit breaker 4 by push pedal on second 531 moves downward to the separating brake position, thereby realizes the interlocking of two circuit breakers.
In sum, technical scheme provided by the present invention has overcome the shortcoming in the prior art, has reached goal of the invention, has embodied the described technique effect of applicant
Claims (4)
1. the mechanical interlock of
a kind of breaker of plastic casing; Described breaker of plastic casing comprises first circuit breaker (3) and second circuit breaker (4) on the support bar (11) that is fixed on distribution tank tower (1); Has the first rim brake switch (31) on described first circuit breaker (3); Has the second rim brake switch (41) on described second circuit breaker (4); It is characterized in that: described mechanical interlock comprises an interlocking clamp (5) and a central shaft (2); Described central shaft (2) is installed in the centre position that first circuit breaker (3), second circuit breaker (4) were gone up and be positioned to support bar (11); Narrow the contracting of axle head of central shaft (2) and be formed with clamp axle (21); The centre of said interlocking clamp (5) offers and is used for cooperating with clamp axle (21) and the clamp (5) of will interlocking is installed to the axis hole (51) that central shaft (2) gets on rotationally, and a side of said interlocking clamp (5) offers and is used for the first rim brake switch vallecular cavity (52) that cooperates with the first rim brake switch (31), and the opposite side of said interlocking clamp (5) offers and is used for the second rim brake switch vallecular cavity (53) that cooperates with the second rim brake switch (41).
2. the mechanical interlock of
breaker of plastic casing according to claim 1; It is characterized in that the described first rim brake switch vallecular cavity (52) is a deep-slotted chip breaker, on the interlocking clamp (5) above the said deep-slotted chip breaker, extended push pedal on first (521).
3. the mechanical interlock of
breaker of plastic casing according to claim 1; It is characterized in that the described second rim brake switch vallecular cavity (53) is a rectangular channel; On the interlocking clamp (5) above the said rectangular channel, extend push pedal on second (531), on the interlocking clamp (5) below the said rectangular channel, extended push pedal (532) down.
4.
The mechanical interlock of breaker of plastic casing according to claim 1; It is characterized in that being formed with thread segment (211) on the clamp axle (21) of said central shaft (2); Described interlocking clamp (5) is set on the clamp axle (21) through axis hole (51), and the clamp (5) of will interlocking is installed on the central shaft (2) rotationally with thread segment (211) locking of clamp axle (21) by packing ring (22), nut (23) in the outside of interlocking clamp (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101957393A CN102709082A (en) | 2012-06-14 | 2012-06-14 | Mechanical mutual-locking device of molded case circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101957393A CN102709082A (en) | 2012-06-14 | 2012-06-14 | Mechanical mutual-locking device of molded case circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102709082A true CN102709082A (en) | 2012-10-03 |
Family
ID=46901762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101957393A Pending CN102709082A (en) | 2012-06-14 | 2012-06-14 | Mechanical mutual-locking device of molded case circuit breaker |
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| Country | Link |
|---|---|
| CN (1) | CN102709082A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615629A (en) * | 2018-06-25 | 2018-10-02 | 乐志胜 | A kind of interlock of electric circuit breaker |
| CN112517305A (en) * | 2021-01-21 | 2021-03-19 | 南通讯华科技有限公司 | Rust-proof treatment method for mechanical equipment |
| CN116864329A (en) * | 2023-09-05 | 2023-10-10 | 山东捷远电气股份有限公司 | Switch cabinet with protection function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466774Y (en) * | 2001-02-27 | 2001-12-19 | 王铁镰 | Double-power supply changing-over switch operator with mechanical interlocking |
| US6743987B1 (en) * | 2002-12-19 | 2004-06-01 | Baton Corporation | Removal deterrence structure for a mechanical interlock |
| CN202650892U (en) * | 2012-06-14 | 2013-01-02 | 常熟市中源电力设备有限公司 | Mechanical interlocking device of moulded case circuit breaker |
-
2012
- 2012-06-14 CN CN2012101957393A patent/CN102709082A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466774Y (en) * | 2001-02-27 | 2001-12-19 | 王铁镰 | Double-power supply changing-over switch operator with mechanical interlocking |
| US6743987B1 (en) * | 2002-12-19 | 2004-06-01 | Baton Corporation | Removal deterrence structure for a mechanical interlock |
| CN202650892U (en) * | 2012-06-14 | 2013-01-02 | 常熟市中源电力设备有限公司 | Mechanical interlocking device of moulded case circuit breaker |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108615629A (en) * | 2018-06-25 | 2018-10-02 | 乐志胜 | A kind of interlock of electric circuit breaker |
| CN108615629B (en) * | 2018-06-25 | 2019-06-07 | 浙江大江电气有限公司 | A kind of interlock of electric circuit breaker |
| CN112517305A (en) * | 2021-01-21 | 2021-03-19 | 南通讯华科技有限公司 | Rust-proof treatment method for mechanical equipment |
| CN112517305B (en) * | 2021-01-21 | 2022-01-18 | 南通讯华科技有限公司 | Rust-proof treatment method for mechanical equipment |
| CN116864329A (en) * | 2023-09-05 | 2023-10-10 | 山东捷远电气股份有限公司 | Switch cabinet with protection function |
| CN116864329B (en) * | 2023-09-05 | 2023-12-15 | 山东捷远电气股份有限公司 | Switch cabinet with protection function |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |