CN202332627U - Interlocking device for preventing on-load switching-on and switching-off isolation - Google Patents
Interlocking device for preventing on-load switching-on and switching-off isolation Download PDFInfo
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- CN202332627U CN202332627U CN2011204400024U CN201120440002U CN202332627U CN 202332627 U CN202332627 U CN 202332627U CN 2011204400024 U CN2011204400024 U CN 2011204400024U CN 201120440002 U CN201120440002 U CN 201120440002U CN 202332627 U CN202332627 U CN 202332627U
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Abstract
The utility model discloses an interlocking device for preventing on-load switching-on and switching-off isolation, and relates to an interlocking device for electrical equipment. The interlocking device has a simple purely mechanical structure, and is convenient to operate and high in protection reliability. According to the interlocking device for preventing the on-load switching-on and switching-off isolation, the rotation motion of a primary switching mechanism output shaft and a secondary switch output shaft is shifted to the horizontal motion of a baffle plate by utilizing linkage relationships among a stirring rod, an auxiliary switch crank arm, an interlocking lever, a reversing crank arm, a guide plate and the baffle plate, and then the baffle plate can cover or open an isolating switch operation hole, so that the aim that an isolation switch cannot be operated under an on-load condition is fulfilled.
Description
Technical field
The utility model relates to a kind of interlock of electric equipment, particularly relates to a kind of preventing the on-load branch, closing the isolation interlock of three station vacuum insulation solid ring main units that be used for.
Background technology
In the electric power system high voltage switchgear, the safeguard protection of against vacuum circuit breaker, isolating switch, vacuum contactor, metering handcart, cabinet door custom is called five prevents, and " preventing that on-load from closing, dividing isolation " is one of them mandatory interlocking.If on-load disjunction isolating switch will cause the high-voltage arc short circuit accident, and jeopardizes personal safety.
Two kinds of structural measures are arranged at present, the one, position switches on isolating switch reaches the purpose of breaking off vacuum contactor when breaking off isolating switch earlier; Or on the cabinet door, high-voltage charge display device is installed, electromagnetic lock is installed, when in cabinet, high pressure being arranged like this on the door; Display is bright; Prompting has electricity, and cabinet door electromagnetic lock is by locking simultaneously, and the cabinet door can't be opened.The shortcoming of this design be required element expense higher, on the cabinet door, must offer the hole that is used for installing electrification display and electromagnetic lock; Especially when the cabinet door is in opening; Because electromagnetic lock is inoperative, also must take to pin the measure that isolating switch does not allow its combined floodgate.The 2nd, the branch of vacuum contactor, close the employing change over switch, the LWR change over switch as adopting industry generally to know carries out program control with procedure lock; This design can not be used the push-botton operation vacuum contactor; And on the cabinet door, need perforate to lock with installation procedure, whole operation is loaded down with trivial details, and cost is also higher.
The utility model content
The on-load that prevents that the technical problem that the utility model will solve provides a kind of protective simple in structure, easy and simple to handle, highly reliable, pure mechanical structure closes, divides the isolation interlock.
The utility model prevents the on-load branch, closes the isolation interlock; Comprise the interlocking frame that is used to install three station solid insulation switches; Said interlocking frame lower horizontal is equipped with rotating main switch mechanism output shaft, is fixedly connected with the driving lever perpendicular with it on the said main switch mechanism output shaft, and the outer end of said driving lever is fixedly connected with first roller bearing; Be set with first roller on said first roller bearing; Be horizontally installed with rotating auxiliary switch rotating shaft on the interlocking frame of said main switch mechanism output shaft one side, be fixedly connected with the auxiliary switch connecting lever in the said auxiliary switch rotating shaft, on the said auxiliary switch connecting lever relatively auxiliary switch rotating shaft symmetry offer two Long Circle holes; On the interlocking frame of said auxiliary switch rotating shaft one side blocking lever is installed vertically; The lower end of said blocking lever is fixedly connected with second roller bearing, is set with second roller on said second roller bearing, and said first roller and second roller are separately positioned in two Long Circle holes on the auxiliary switch connecting lever; The upper end of said blocking lever is provided with the 3rd roller bearing
The top of said interlocking frame is fixedly connected with guide plate; Level offers first long guiding hole on the said guide plate; Be provided with the switching-over rotating shaft above or below said first long guiding hole, rotating switching-over connecting lever is installed in the said switching-over rotating shaft, offer two Long Circle holes on the said switching-over connecting lever; The rear side of said guide plate is provided with right-angle baffle; Be fixedly connected with the first guiding roller bearing that is arranged in first long guiding hole on the vertical side plate of said baffle plate, said the 3rd roller bearing and the first guiding roller bearing are separately positioned in two Long Circle holes on the switching-over connecting lever, and the horizontal side plate of said baffle plate comprises left-half and right half part; Be provided with between said left-half and the right half part at interval, and corresponding with the isolator operation hole site of below.
The utility model prevents the on-load branch, closes the isolation interlock; Be fixedly connected with the second guiding roller bearing on the trailing flank of wherein said guide plate; Level offers second long guiding hole on the vertical side plate of said baffle plate, and the said second guiding roller bearing is arranged in second long guiding hole.
The utility model prevents the on-load branch, closes the isolation interlock, and wherein said switching-over connecting lever is the right angle connecting lever, and two Long Circle holes on it are separately positioned on two right-angle sides of right angle connecting lever.
The utility model prevents the on-load branch, closes the isolation interlock, and the middle part of wherein said interlocking frame is fixedly connected with the blocking lever guide plate, offers the guiding circular hole on the said blocking lever guide plate, and said blocking lever is arranged in the guiding circular hole.
The utility model prevents the on-load branch, closes the isolation interlock, and the top of wherein said interlocking frame is fixedly connected with the travel switch supporting bracket, is fixedly connected with travel switch on the said travel switch supporting bracket.
The utility model prevents the on-load branch, close and isolate the interlock difference from prior art and be that the utility model prevents the on-load branch, closes and isolate interlock and adopt the mutual interaction relation between driving lever, auxiliary switch connecting lever, blocking lever, switching-over connecting lever, guide plate and the baffle plate; Rotatablely moving of main switch mechanism output shaft and auxiliary switch output shaft is passed to the horizontal movement of baffle plate; Make baffle plate can cover or open the isolator operation hole, thus be implemented under the on-load situation can't disconnecting switch operation purpose.Simultaneously, because the interlock of the utility model adopts the Purely mechanical structure, cost is relatively low, and it is little influenced by external cause, and reliability is higher.
Below in conjunction with accompanying drawing preventing the on-load branch, close and isolate interlock and be described further to the utility model.
Description of drawings
Fig. 1 prevents the on-load branch, closes the front view (not on-load state) of isolating interlock for the utility model;
Fig. 2 prevents the on-load branch, closes the vertical view (not on-load state) of isolating interlock for the utility model;
Fig. 3 prevents the on-load branch, closes the left view (not on-load state) of isolating interlock for the utility model;
Fig. 4 prevents the on-load branch, closes the front view (on-load state) of isolating interlock for the utility model;
Fig. 5 prevents the on-load branch, closes the vertical view (on-load state) of isolating interlock for the utility model;
Fig. 6 prevents the on-load branch, closes the left view (on-load state) of isolating interlock for the utility model.
Embodiment
As shown in figures 1 and 3, the utility model prevents the on-load branch, close and isolate interlock and comprise interlocking frame 1, in the interlocking frame 1 three station solid insulation switches is installed.Interlocking frame 1 lower horizontal is equipped with rotating main switch mechanism output shaft 2, and main switch mechanism output shaft 2 is used for controlling the break-make of three station solid insulation switch vacuum contactors.Be fixedly connected with the driving lever perpendicular with it 3 on the main switch mechanism output shaft 2, the outer end of driving lever 3 is welded with first roller bearing, is set with first roller on first roller bearing.Be horizontally installed with rotating auxiliary switch rotating shaft 4 on the interlocking frame 1 of main switch mechanism output shaft 2 one sides; Be fixedly connected with auxiliary switch connecting lever 5 in the auxiliary switch rotating shaft 4, relative auxiliary switch rotating shaft 4 symmetries offer two Long Circle holes 6 on the auxiliary switch connecting lever 5.On the interlocking frame 1 of auxiliary switch rotating shaft 4 one sides blocking lever 7 is installed vertically, the middle part of interlocking frame 1 is fixedly connected with blocking lever guide plate 23, offers the guiding circular hole on the blocking lever guide plate 23, and blocking lever 7 is arranged in the guiding circular hole.The lower end of blocking lever 7 is welded with second roller bearing, and the upper end is welded with the 3rd roller bearing, is set with second roller on second roller bearing, and first roller and second roller are separately positioned in two Long Circle holes 6 on the auxiliary switch connecting lever 5.
In conjunction with shown in Figure 2; The top of interlocking frame 1 is fixedly connected with guide plate 9; The below that level offers first long guiding hole, 10, the first long guiding holes 10 on the guide plate 9 is welded with switching-over rotating shaft 11, is set with rotating switching-over connecting lever 12 in the switching-over rotating shaft 11; Switching-over connecting lever 12 is the right angle connecting lever, offers two Long Circle holes 8 respectively on two right-angle sides of right angle connecting lever.The rear side of guide plate 9 is provided with right-angle baffle 13; Be fixedly connected with the first guiding roller bearing 15 that is arranged in first long guiding hole 10 on the vertical side plate 14 of baffle plate 13, the 3rd roller bearing of blocking lever 7 lower ends and the first guiding roller bearing 15 are separately positioned in two Long Circle holes 8 on the switching-over connecting lever 12.Be fixedly connected with the second guiding roller bearing 19 on the trailing flank of guide plate 9, level offers second long guiding hole 20, the second guiding roller bearings 19 and is arranged on and is used in second long guiding hole 20 auxiliary baffle plate 13 being led on the vertical side plate 14 of baffle plate 13.The horizontal side plate of baffle plate 13 comprises left-half 16 and right half part 17, is provided with between left-half 16 and the right half part 17 at interval, and corresponding with 18 positions, isolator operation hole of below.The top of interlocking frame 1 is fixedly connected with travel switch supporting bracket 21, is connected with travel switch 22 through bolt on the travel switch supporting bracket 21.
Fig. 1 prevents the on-load branch, closes and isolate the not state of on-load of interlock for the utility model to shown in Figure 3; This moment, the left-half 16 of baffle plate 13 horizontal side plates was staggered with the position in isolator operation hole 18 with right half part 17, can carry out make-break operation to isolating switch through operating grip.When needs carry out the on-load operation; Rotation main switch mechanism's output shaft 2 or auxiliary switch rotating shaft 4 are rotated auxiliary switch connecting lever 5, and auxiliary switch connecting lever 5 promotes blocking lever 7 and moves upward, and blocking lever 7 promotes switching-over connecting lever 12 and clockwise rotates; Switching-over connecting lever 12 promotes baffle plate 13 and moves right; Fig. 4 is to shown in Figure 6 in set, the left-half 16 and the right half part 17 of baffle plate 13 horizontal side plates move to isolator operation hole 18 directly over it is blocked fully, this moment, vacuum contactor was in on-state; And isolating switch can't carry out make-break operation, thereby has realized the purpose that prevents the on-load branch, close isolating switch.
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technical scheme of the utility model all should fall in the definite protection range of the utility model claims.
Claims (5)
1. one kind prevents the on-load branch, closes the isolation interlock; It is characterized in that: comprise the interlocking frame (1) that is used to install three station solid insulation switches; Said interlocking frame (1) lower horizontal is equipped with rotating main switch mechanism's output shaft (2), is fixedly connected with the driving lever perpendicular with it (3) on said main switch mechanism's output shaft (2), and the outer end of said driving lever (3) is fixedly connected with first roller bearing; Be set with first roller on said first roller bearing; Be horizontally installed with rotating auxiliary switch rotating shaft (4) on the interlocking frame (1) of said main switch mechanism output shaft (2) one sides, be fixedly connected with auxiliary switch connecting lever (5) in the said auxiliary switch rotating shaft (4), said auxiliary switch connecting lever (5) is gone up relative auxiliary switch rotating shaft (4) symmetry and is offered two Long Circle holes (6); On the interlocking frame (1) of said auxiliary switch rotating shaft (4) one sides blocking lever (7) is installed vertically; The lower end of said blocking lever (7) is fixedly connected with second roller bearing, is set with second roller on said second roller bearing, and said first roller and second roller are separately positioned in two the Long Circle holes (6) on the auxiliary switch connecting lever (5); The upper end of said blocking lever (7) is provided with the 3rd roller bearing
The top of said interlocking frame (1) is fixedly connected with guide plate (9); Said guide plate (9) is gone up level and is offered first long guiding hole (10); Be provided with switching-over rotating shaft (11) above or below said first long guiding hole (10); Rotating switching-over connecting lever (12) is installed in the said switching-over rotating shaft (11); Offer two Long Circle holes (8) on the said switching-over connecting lever (12), the rear side of said guide plate (9) is provided with right-angle baffle (13), is fixedly connected with the first guiding roller bearing (15) that is arranged in first long guiding hole (10) on the vertical side plate (14) of said baffle plate (13); Said the 3rd roller bearing and the first guiding roller bearing (15) are separately positioned in two the Long Circle holes (8) on the switching-over connecting lever (12); The horizontal side plate of said baffle plate (13) comprises left-half (16) and right half part (17), is provided with between said left-half (16) and the right half part (17) at interval, and corresponding with the position, isolator operation hole (18) of below.
2. according to claim 1ly prevent the on-load branch, close the isolation interlock; It is characterized in that: be fixedly connected with the second guiding roller bearing (19) on the trailing flank of said guide plate (9); The vertical side plate (14) of said baffle plate (13) is gone up level and is offered second long guiding hole (20), and the said second guiding roller bearing (19) is arranged in second long guiding hole (20).
3. according to claim 2ly prevent the on-load branch, close the isolation interlock, it is characterized in that: said switching-over connecting lever (12) is the right angle connecting lever, and two the Long Circle holes (8) on it are separately positioned on two right-angle sides of right angle connecting lever.
4. according to claim 3ly prevent the on-load branch, close the isolation interlock; It is characterized in that: the middle part of said interlocking frame (1) is fixedly connected with blocking lever guide plate (23); Offer the guiding circular hole on the said blocking lever guide plate (23), said blocking lever (7) is arranged in the guiding circular hole.
5. according to claim 4ly prevent the on-load branch, close the isolation interlock; It is characterized in that: the top of said interlocking frame (1) is fixedly connected with travel switch supporting bracket (21), is fixedly connected with travel switch (22) on the said travel switch supporting bracket (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204400024U CN202332627U (en) | 2011-11-08 | 2011-11-08 | Interlocking device for preventing on-load switching-on and switching-off isolation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204400024U CN202332627U (en) | 2011-11-08 | 2011-11-08 | Interlocking device for preventing on-load switching-on and switching-off isolation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332627U true CN202332627U (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204400024U Expired - Fee Related CN202332627U (en) | 2011-11-08 | 2011-11-08 | Interlocking device for preventing on-load switching-on and switching-off isolation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332627U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331554A (en) * | 2017-07-27 | 2017-11-07 | 上海纳杰电气成套有限公司 | A kind of interlock of breaker mechanism and three position mechanism |
| CN108711534A (en) * | 2018-05-28 | 2018-10-26 | 福建中能电气有限公司 | The interlocking mechanism of permanent-magnet breaker |
-
2011
- 2011-11-08 CN CN2011204400024U patent/CN202332627U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107331554A (en) * | 2017-07-27 | 2017-11-07 | 上海纳杰电气成套有限公司 | A kind of interlock of breaker mechanism and three position mechanism |
| CN107331554B (en) * | 2017-07-27 | 2020-07-28 | 上海纳杰电气成套有限公司 | Interlocking device of circuit breaker mechanism and three-station mechanism |
| CN108711534A (en) * | 2018-05-28 | 2018-10-26 | 福建中能电气有限公司 | The interlocking mechanism of permanent-magnet breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20191108 |