CN202534578U - Switch cabinet isolating switch and grounding switch interlocking device - Google Patents
Switch cabinet isolating switch and grounding switch interlocking device Download PDFInfo
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- CN202534578U CN202534578U CN201220016157XU CN201220016157U CN202534578U CN 202534578 U CN202534578 U CN 202534578U CN 201220016157X U CN201220016157X U CN 201220016157XU CN 201220016157 U CN201220016157 U CN 201220016157U CN 202534578 U CN202534578 U CN 202534578U
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- switch
- square shaft
- isolating switch
- transmission square
- earthed switch
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Abstract
The utility model relates to a misoperation-preventing system for a high voltage switch cabinet, and a switch cabinet isolating switch and grounding switch interlocking device which is characterized by reliable working performance and simple structure. The device comprises an isolating switch operation main shaft, wherein the isolating switch operation main shaft is provided with a transmission cam sleeve in a radial direction, an end part position of the transmission cam sleeve corresponds to an upper end of a second transmission square shaft, the second transmission square shaft runs through two holes of a second support, the second transmission square shaft is sleeved with a spring at the shaft body between the two holes, a lower end and a middle part of the second transmission square shaft are hinged to one end of an arm lever of the second support, the other end of the arm lever is hinged to an upper end of a second pull rod, a lower end of the second pull rod is connected with a second separation blade which is located between a grounding switch main shaft and grounding switch operation holes when the isolating switch is in an off state. The interlocking device is characterized by simple structure, mechanical flexibility, reliable function, utilization convenience of the misoperation-preventing system for a high voltage switch cabinet, and realization of the aim of interlocking the isolating switch and a circuit breaker.
Description
Technical field
The utility model relates to high-tension switch cabinet, especially the anti-misoperation system in the high-tension switch cabinet.
Background technology
At present, the high-tension switch cabinet of power supplying and distributing equipment is mainly by executive components such as vacuum circuit-breaker, isolating switch, earthed switches, and measurement, protection component such as instrument transformer are formed current supply circuit.
For avoiding occurring because the short circuit that misoperation causes or personnel's electric shock, device damage, casualties.The GB/T3906-91 regulation: high-tension switch cabinet should have five perfect anti-misoperation functions:
(1) anti-error branch, close circuit breaker; (2) isolating switch is divided, closed to anti-bringing onto load mistake; (3) anti-personnel mistakenly entering charged chamber; (4) prevent charged splice grafting ground switch; (5) antiground switch closing position send.
Now, domestic traditional high-tension switch cabinet, like the HXGN-10 high-tension switch cabinet, movable procedure lock is generally adopted in the anti-misoperation of its isolating switch and conjuncted vacuum short-circuiting device; Like the patent No. is shown in the ZL200910098805.3.But, but this movable procedure lock and has the selectivity of a plurality of holes and pin to insert to cooperate also easy clamping stagnation and unreliable because mobile process parts people for a change becomes unreliable; Also because movable part displacement sometimes, it is inconvenient to cause its clamping stagnation etc. to cause using.
More do not realize the special arrangement of isolating switch and earthed switch interlocking in the high-tension switch cabinet.
Summary of the invention
The main purpose of the utility model provides the isolating switch and the earthed switch interlock of a kind of reliable working performance, switch cubicle simple in structure.
The concrete technical scheme of the utility model is: a kind of isolating switch of switch cubicle and earthed switch interlock; It is characterized in that: comprise the isolator operation main shaft; Be disposed radially the driving cam cover on the isolator operation main shaft; Driving cam cover end position is corresponding with second transmission square shaft upper end, and the second transmission square shaft is worn in two holes that are connected on second support, the second transmission square shaft sheathed spring on the axle body between two holes; Armed lever one end that the second transmission square shaft lower end and middle part are hinged on second support is hinged; The other end of armed lever and second pull bar upper end are hinged; The second pull bar lower end connects second catch, and the "on" position at isolating switch of second catch is kept off between earthed switch operation axis and earthed switch handle hole.
The connecting rod that such isolating switch and earthed switch interlock only have several ends to be hinged can be realized interlock, and reliable in structure.Realized simple in structure, machinery flexibly, the purpose of reliable in function, can use high-tension switch cabinet easily, play the purpose of isolating switch with the circuit breaker interlocking, and with other interlock co-operating formation anti-misoperation system.
Description of drawings
Fig. 1 is the perspective view of the five-preventing system of the utility model;
Fig. 2 is the partial exploded view among Fig. 1;
Fig. 3 is arranged in the perspective view on the switch cubicle for the utility model, has wherein hidden the 3rd catch;
Fig. 4 is the partial enlarged drawing of A portion among Fig. 3, has wherein hidden the 3rd catch;
Fig. 5 is the right view of Fig. 3;
Fig. 6 is the partial enlarged drawing of B portion among Fig. 5;
Fig. 7 is the perspective view of isolator operation handle.
Embodiment
The five-preventing system of the high-tension switch cabinet shown in Fig. 1 to 7: comprise circuit breaker and isolating switch interlock; Isolating switch and earthed switch interlock; Earthed switch and circuit breaker and isolating switch interlock; Isolating switch and following door interlock, earthed switch and following door interlock, totally five parts.
The first part: circuit breakers and disconnectors 50 interlock device comprising: a switch on the circuit breaker 60 with a crank arm pieces and isolation switch operating shaft 13, the closing piece a crank arm and the vertical rod 3 by connecting head 2 hinged connection, vertical The other end of the rod 3 and the end of the L-shaped hinge piece 4 turn, L-shaped middle turn hinge piece 4 on the first holder 5, the first bracket 5 is fixed to the inner wall of the switch cabinet, L-shaped turn the other end of the sheet 4 tie rod 6 hinged, the other end of the tie rod 6 of the first end portion of the hinge bracket 8, the first stopper piece 8 Central hinged bracket frame 7, the first stopper piece 8 the other end of the closing state of the circuit breaker 60 in isolation block switch operation in front of the spindle 13.
Course of action is: during the action of circuit breaker 60 separating brakes; Existing circuit breaker breaking-closing operating main shaft must rotate; The utility model is exactly to utilize it to rotate the free end that drives connecting lever sheet 1 upwards to rotate; Vertical connecting rod 3 drives the L shaped sheet 4 that turns and clockwise rotates, and drag link 6 drives that first catch 8 rotates counterclockwise and this moment just can be used 51 deciliters isolating switches 50 of isolator operation handle in the position, dead ahead of leaving isolator operation main shaft 13.
When circuit breaker 60 closed a floodgate, first catch 8 clockwise rotated the dead ahead that keeps off isolator operation main shaft 13, and this moment is with regard to unrenewable 51 deciliters isolating switches 50 of isolator operation handle as shown in Figure 7.
This device has realized preventing bringing onto load mistake branch, the function of closing isolating switch 50.And such linkage structure is simple, is convenient to processing and use, and holding function is reliable simultaneously.
Certainly; Those skilled in the art can confirm: in circuit breaker 60 and isolating switch 50 interlocks and other interlock, will realize interlock; The direction of rotation is not unique; For example, first catch 8 clockwise rotates and leaves isolator operation main shaft 13 dead aheads, and other parts adjust accordingly and mate also and are fine.
Second portion: isolating switch 50 comprises with earthed switch 70 interlocks: isolator operation main shaft 13; Be disposed radially driving cam cover 10 on the isolator operation main shaft 13; It is corresponding with the second transmission square shaft, 12 upper ends that driving cam overlaps 10 end positions; The second transmission square shaft 12 is worn in two holes that are connected on second support 18, the second transmission square shaft 12 sheathed spring on the axle body between two holes; Armed lever 21 1 ends that the second transmission square shaft, 12 lower ends and middle part are hinged on second support 19 are hinged; The other end of armed lever 21 and second pull bar, 23 upper ends are hinged; Second pull bar, 23 lower ends connect the "on" position at isolating switch 50 of second catch, 28, the second catch 28 and keep off between earthed switch operation axis 31 and earthed switch handle hole 31`.
Further; As shown in Figure 2: described earthed switch handle hole 31` is arranged on the earthed switch operating grip support 32; On described second catch 28 waist-shaped hole is set vertically; On the earthed switch operating grip support 32 position-limitting pin is set, pin inserts and constitutes spacing being slidingly connected in the waist-shaped hole.Be used to make and catch 28 horizontal direction fixed-site can slide up and down simultaneously again swimmingly.
Course of action is: when isolating switch 50 closes a floodgate; Isolator operation main shaft 13 drives driving cam cover 10 to right rotation, and driving cam cover 10 presses down and makes that second square shaft 12 is descending, the spring stress compression; Second square shaft, 12 drive armed levers, 21 left ends are rotated down, right-hand member rotates up; It is up that second pull bar 23 drives second catch 28, and second catch, 28 retainings are between earthed switch operation axis 31 and earthed switch handle hole 31`, so earthed switch operation axis 31 can't carry out switching manipulation.Just isolating switch 50 closes a floodgate, and earthed switch 70 is by locked.Operational grounding switch 70 when preventing isolating switch 50 combined floodgates.Behind circuit breaker 60, isolating switch 50 separating brakes, spring return drives the parts reverse direction operation, and earthed switch handle hole 31` opens, and this moment can operational grounding switch 70.
This part realizes preventing charged splice grafting ground switch 70.
Third part: earthed switch 70 comprises with circuit breaker 60 and isolating switch 50 interlocks: the 3rd support 14; The 3rd support 14 and the 3rd catch 20 middle parts are hinged; It is hinged that the 3rd catch 20 1 ends are positioned at isolator operation main shaft 13 front ends, the other end and the 3rd pull bar 22 upper ends; Described circuit breaker 60 subsidiary dropout main shaft 24 ends are disposed radially the 3rd connecting lever sheet 25 and compressing tablet 25`; Both are mutually from arranging; The 3rd connecting lever sheet 25 projecting ends and the 3rd pull bar 22 lower ends are hinged, and compressing tablet 25` below correspondence position is provided with the driving cam sheet 30 formation cam drives that are disposed radially on the 3rd transmission square shaft 27, the three transmission square shafts 27 lower ends and the earthed switch operation axis 31 and cooperates; The sheathed spring in described the 3rd transmission square shaft 27 middle parts, spring is between two holes of the 3rd support 26 of fixing the 3rd transmission square shaft 27; The free end of described the 3rd catch 20 is in the position, dead ahead of isolator operation main shaft 13 when earthed switch 70 closes a floodgate.
Operation principle is: when earthed switch 70 closes a floodgate; Earthed switch operation axis 31 drives driving cam sheet 30 and turns clockwise, and it is up that 30 rotations of driving cam sheet drive the 3rd transmission transmission square shaft 27, and the 3rd transmission square shaft 27 is up; The spring stress compression; The 3rd transmission square shaft 27 drive compressing tablet 25` rotate up simultaneously, drive circuit breaker 60 subsidiary dropout main shafts 24 and turn clockwise, and 24 rotations of dropout main shaft are locked with circuit breaker 60.This moment, circuit breaker 60 can not carry out breaking-closing operating.The 3rd connecting lever sheet 25 turns clockwise, and to drive the 3rd pull bar 22 descending, and the 3rd pull bar 22 pullings the 3rd catch 20 turns clockwise isolator operation main shaft 13 is blocked, and so just can't carry out the breaking-closing operating of isolating switch 50.When earthed switch 70 separating brake rear spring backhauls drive parts inverted running, just can disconnecting switch operation 50 and circuit breaker 60.
It is locked with circuit breaker 60 and isolating switch 50 when closing a floodgate that this part is implemented in earthed switch 70, can not operating breaker 60 and isolating switch 50 when earthed switch 70 closes a floodgate, prevent earthed switch 70 combined floodgate mistiming disconnecting switch operation 50 and circuit breakers 60.
Realized: prevent that earthed switch 70 closing positions from sending.
The 4th part: isolating switch 50 comprises with Xiamen 80 interlocks: isolator operation main shaft 13; Be disposed radially driving cam cover 10 on it; Driving cam overlaps 10 ends the dististyle 101 that is provided with along the axial length direction is set; The correspondence position of dististyle 101 is provided with the 4th transmission square shaft 15, the four transmission square shafts 15 and wears in two through holes that are connected on the 4th support 17, sheathed spring on the axle body that is positioned at the 4th support 17 of the 4th transmission square shaft 15; Described the 4th transmission square shaft 15 upper ends connect the 4th catch 11, the four catch 11 and in isolating switch 50 separating brakes, block the dead ahead at isolator operation main shaft 13; The 4th transmission square shaft 15 lower ends connect the thicker lock pin head 16 in termination; The Xiamen 80 of described switch cubicle is for carrying hanging hang structure; 80 tops, Xiamen are provided with a padlock 81; Have on the padlock 81 and indentation that the lower end shape of lock pin head 16, position coincide, the distances that the vertical displacement of the padlock 81 on the Xiamen 80 and lock pin head 16 vertically move are identical and block with the 4th catch 11 or corresponding away from the displacement of isolator operation main shaft 13.
As shown in Figure 6, there is downward last butt strip 82 Xiamen 80 of carrying hanging hang structure just Xiamen 80 top edges, and corresponding cabinet inwall has following butt strip 83 upwards, and both 80 are in the state that overlap joint cooperates when closing in the Xiamen.So upwards mentioning must upwards carry when opening Xiamen 80 makes 82,83 dropouts of two butt strips just can open the Xiamen.
Operation principle: when closing Xiamen 80; Padlock 81 drives lock pin head 16 and moves down; The 4th catch 11 just moves down the position, dead ahead of leaving isolator operation main shaft 13, the isolating switch 50 that can close a floodgate then, and isolator operation main shaft 13 drive driving cam covers 10 turned clockwise with dististyle 101 and pressed down this moment; The 4th catch 11, the 4th transmission square shaft 15 descending putting in place; Conflicting and to carry the switch cubicle Xiamen 80 of hanging hang structure in the 4th transmission square shaft 15 lower ends, makes Xiamen 80 by locked and can't open spring stress compression simultaneously.When realizing isolating switch 50 combined floodgates the 80 locked Xiamen 80 of can not opening, Xiamen are overhauled.During isolating switch 50 separating brakes; Driving cam cover 10 is removed with dististyle 101, is through with to the locking that presses down of the 4th catch 11 and the 4th transmission square shaft 15, puts door 80 on operating personnel get final product; The process medi-spring backhaul that open Xiamen 80 provides auxiliary force to drive the parts inverted running; Open Xiamen 80 maintenance, the 80 inspecting state combined floodgate isolating switches 50 opened are avoided in the Xiamen in the 4th catch 11 dead ahead of also blocking isolator operation main shaft 13 simultaneously.
This part prevents personnel's mistakenly entering charged chamber.Just prevent to open when isolating switch 50 from closing a floodgate Xiamen 80 maintenance, can not disconnecting switch operation 50 and open that the Xiamen is after 80s.
The 5th part: earthed switch 70 comprises with Xiamen 80 interlocks: earthed switch operating grip support 32, the 5th catch 33; The 5th catch 33 lower ends connect the 5th transmission square shaft 35; Wear between the two through hole that is connected on the 5th support 34 at the 5th transmission square shaft 35 middle parts; Transmission square shaft 35 is positioned at sheathed spring on the axle body between two through hole, and the 5th transmission square shaft 35 lower ends are provided with down gate interlock lacing film 36, and Xiamen 80 is closed compressing tablet on the gate interlock lacing film 36 and the Xiamen of carrying hanging hang structure 80 at present and conflicted and cooperate.Described before the cause; The Xiamen 80 of the utility model is for carrying hanging hang structure; So must there be the course of action that moves down Xiamen 80 when shutting Xiamen 80, if in the Xiamen corresponding position, gate interlock lacing film 36 position, 80 up and down a compressing tablet is set can will play gate interlock lacing film 36 to press down, realize interlocking.
Operation principle: when shutting Xiamen 80, the compressing tablet pressure that following gate interlock lacing film 36 is carried on the Xiamen 80 of hanging hang structure is descending, drives the 5th transmission square shaft 35 and the 5th catch 33 is descending, and the earthed switch handle hole 31` side of opening is so that can operational grounding switch 70.Spring return drove the parts inverted running when opened Xiamen 80, and the 5th catch 33 blocks earthed switch handle hole 31` locked, and this moment can not operational grounding switch 70.
This part mainly is to prevent that Xiamen 80 from opening when maintenance separating brake earthed switch 70 and cause danger.
The five-preventing system of the high-tension switch cabinet of the utility model has really been realized programed interlocking, and operating sequence correctly could be operated successfully, and correct operation sequence is summarized simply and is exactly:
When sending electricity: close Xiamen 80 → separating brake earthed switch, 70 → combined floodgate isolating switch, 50 → combined floodgate circuit breaker 60, send electricity to accomplish.
During power operation: separating brake circuit breaker 60 → separating brake isolating switch 50.
During interruption maintenance: separating brake circuit breaker 60 → separating brake isolating switch 50 → combined floodgate earthed switch 70 → open Xiamen 80 to overhaul.
The utility model has successfully been avoided isolating switch 50 on-load separating brakes, combined floodgate and the arc short-circuit phenomenon that causes; Realized the design philosophy of " operation sequence is correct, operate successfully; operation sequence is incorrect, operation is unsuccessful ", the generation of minimizing accident, make do safer, reliable.And five-preventing system is simple in structure, reliable.Described earthed switch 70 is so long as the structure of utilizing the rotation of earthed switch operation axis 31 to realize deciliter gets final product EK6-12 type earthed switch etc. for example; Described circuit breaker 60 can be to be carried out the branch closing operation and have the structure that goes up axle 24 of threading off getting final product by the circuit-breaker switching on-off main axis rotation, and most high-pressure vacuum breaker can meet the demands in the prior art.The operation of isolating switch 50 is so long as utilize isolator operation main shaft 13 to drive at isolator operation handle 51 to rotate the mechanism that gets final product deciliter isolating switch 50 down and get final product.As long as then have the equal five-preventing system of applicable the utility model of structure of earthed switch 70, isolating switch 50, the circuit breaker 60 of above-mentioned similar structures as for switch cubicle.
Receive functions such as force compresses and backhaul as for making spring play; Then be easy to realize, for example be disposed radially pin at transmission square shaft axle body, spring is by the fixed-site of pin realization with the transmission square shaft; All can be compressed when both ends of the spring abuts on the support, realize the purpose of backhaul.Reliably then there are a lot of technical schemes to realize as for fixing under the prerequisite that is connected and guarantees to move of parts and cabinet.The utility model preferably uses a plurality of supports that are connected with cabinet 5,7,18,19,14,26,32 to realize.And for example the 3rd support 14, second support 19 can also be set to overall structure at a distance of nearer like this.
Claims (2)
1. the isolating switch of a switch cubicle and earthed switch interlock; It is characterized in that: comprise isolator operation main shaft (13); Be disposed radially driving cam cover (10) on the isolator operation main shaft (13); Driving cam cover (10) end position is corresponding with the second transmission square shaft (12) upper end, and the second transmission square shaft (12) is worn in two holes that are connected on second support (18), the second transmission square shaft (12) sheathed spring on the axle body between two holes; Armed lever (21) one ends that second transmission square shaft (12) lower end and middle part are hinged on second support (19) are hinged; The other end of armed lever (21) and second pull bar (23) upper end are hinged; Second pull bar (23) lower end connects second catch (28), and the "on" position at isolating switch of second catch (28) is kept off between earthed switch operation axis (31) and earthed switch handle hole (31`).
2. the isolating switch of switch cubicle according to claim 1 and earthed switch interlock; It is characterized in that: described earthed switch handle hole (31`) is arranged on the earthed switch operating grip support (32); On described second catch (28) waist-shaped hole is set vertically; On the earthed switch operating grip support (32) position-limitting pin is set, pin inserts and constitutes spacing being slidingly connected in the waist-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220016157XU CN202534578U (en) | 2012-01-13 | 2012-01-13 | Switch cabinet isolating switch and grounding switch interlocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220016157XU CN202534578U (en) | 2012-01-13 | 2012-01-13 | Switch cabinet isolating switch and grounding switch interlocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202534578U true CN202534578U (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220016157XU Expired - Lifetime CN202534578U (en) | 2012-01-13 | 2012-01-13 | Switch cabinet isolating switch and grounding switch interlocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202534578U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456531A (en) * | 2013-05-13 | 2013-12-18 | 江山市开关厂有限公司 | Interlocking device special for switch cabinet |
| CN103794997A (en) * | 2013-12-03 | 2014-05-14 | 朝阳当凯电力开关有限公司 | Five-prevention interlocking device in bypass centrally-arranged cabinet |
| CN104465198A (en) * | 2014-11-05 | 2015-03-25 | 中国西电电气股份有限公司 | Mechanical interlocking transmission device of isolating switches |
| CN105097325A (en) * | 2015-07-16 | 2015-11-25 | 许继（厦门）智能电力设备股份有限公司 | Anti-misoperation mechanism of interlocking mechanism |
| CN106409594A (en) * | 2016-06-28 | 2017-02-15 | 湖南长高电气有限公司 | Mechanical locking device for isolating spring mechanism of circuit breaker |
-
2012
- 2012-01-13 CN CN201220016157XU patent/CN202534578U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103456531A (en) * | 2013-05-13 | 2013-12-18 | 江山市开关厂有限公司 | Interlocking device special for switch cabinet |
| CN103794997A (en) * | 2013-12-03 | 2014-05-14 | 朝阳当凯电力开关有限公司 | Five-prevention interlocking device in bypass centrally-arranged cabinet |
| CN103794997B (en) * | 2013-12-03 | 2016-01-13 | 辽宁当凯电力有限公司 | The five-prevention interlocking device of bypass middle-placed switch cabinet |
| CN104465198A (en) * | 2014-11-05 | 2015-03-25 | 中国西电电气股份有限公司 | Mechanical interlocking transmission device of isolating switches |
| CN104465198B (en) * | 2014-11-05 | 2016-12-07 | 中国西电电气股份有限公司 | A kind of disconnecting switch mechanical interlocking transmission device |
| CN105097325A (en) * | 2015-07-16 | 2015-11-25 | 许继（厦门）智能电力设备股份有限公司 | Anti-misoperation mechanism of interlocking mechanism |
| CN106409594A (en) * | 2016-06-28 | 2017-02-15 | 湖南长高电气有限公司 | Mechanical locking device for isolating spring mechanism of circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |