CN201000822Y - Five-prevention interlocking mechanism for 3~35kV AC metal closed switch equipment - Google Patents
Five-prevention interlocking mechanism for 3~35kV AC metal closed switch equipment Download PDFInfo
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- CN201000822Y CN201000822Y CNU2006201256656U CN200620125665U CN201000822Y CN 201000822 Y CN201000822 Y CN 201000822Y CN U2006201256656 U CNU2006201256656 U CN U2006201256656U CN 200620125665 U CN200620125665 U CN 200620125665U CN 201000822 Y CN201000822 Y CN 201000822Y
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- interlocking
- axle
- back door
- drive shaft
- final drive
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Abstract
The utility model designs a five-protection interlocking mechanism for alternating current metal-enclosed switch equipment with an insulation distance meeting the standard requirements and the electrified isolation chamber realizing the reliable locking which is not damaged caused by misoperation, aiming at most of the exiting switch cabinet which can not meet the 125 mm insulating safe distance of the national standard and the potential safety hazard of preventing going wrong the electrified isolation chamber in the five-protection interlocking. The utility model comprises a transmission axle (2), and is characterized in that the interlocking main axle is formed by connecting an insulating axle (15) closed to a rear door (20) and a main transmission axle (2) closed to a front door, and the main transmission axle (2) is connected with a ground switch main axle (11) through a transmission mechanism (12). The utility model successfully resolves the problems of the entering into the electrified isolation chamber, the mounting distance and the interlocking reliability in the electrical switch cabinet five-protection equipments, and simultaneously has the advantages that the structure is simple, the operation is convenient, and the utility model is safe and reliable.
Description
Technical field
The utility model relates to a kind of AC metal closed switch cabinet safe operation device, the AC metal closed switch cabinet safe operation device of especially a kind of 3～35kV, and specifically a kind of 3～35kV ac metal closing switch gear is prevented interlocking devices with five.
Background technology
At present, along with developing rapidly of network system, the quantity of various switchgears also sharply increases, and power supply-distribution system is to each switchgear requirement also increasingly stringent.For the reliability service that guarantees switchgear and operator's safety.The various metal enclosed switchgears of the national Specification of China should have following five fool proof blocking functions:
1, prevent the on-load branch, close isolating switch;
2, prevent that mistake from dividing, mistake is closed circuit breaker, contactor;
Close when 3, preventing that earthed switch is in make position and close switches such as circuit breaker, on-load switch;
4, prevent at charged mistiming splice grafting ground switch;
5, prevent the mistakenly entering into charged compartment.
In addition, according to the relative national standards regulation, the insulation safety distance of the ac metal closing switch gear of 10kV grade must be greater than 125mm.Power department is the requirement of satisfying the power cable head manufacture craft, prescribed switch cabinet high-tension cable chamber cable lug apart from base plate distance greater than 700 millimeters.
The product that at present domestic each big switchgear plant produces does not satisfy above-mentioned requirements as yet fully, mainly show the following aspects: one, the earthed switch operating axis does not satisfy 125mm to the insulation safety distance of electric conductor, for reaching above each switchgear plant that requires ground connection switching manipulation axle has been done one deck insulating protective layer, this measure is also unreliable; Two, not by the regulation of " preventing the mistakenly entering into charged compartment " in " five is anti-" regulation, charged isolation ward door-plate does not adopt the safeguard procedures of mechanical backlocking.Three, the design of ground connection disconnecting link interlocking device is unreasonable, and operational torque is big, and mechanism is damaged easily under the misoperation situation.Four, the distance of high-tension cable chamber connector lug and base plate is less than 700 millimeters, can only shift out the pass cabinet and installs outward being installed in zero-sequence transformer in the cable vault.
Because above defective, 3～35kV ac metal closing switch gear of operation still has certain potential safety hazard at present.
Summary of the invention
The purpose of this utility model be at present most of switch cubicle fail fully to satisfy five anti-require and operating axis to the potential safety hazard that the insulation safety distance of electric conductor exists less than 125mm, design a kind of insulation distance and satisfy standard, reliably prevent mistakenly entering into charged compartment and can not prevent interlocking devices with five because of misoperation destroys 3～35kV ac metal closing switch gear that ac metal closing switch gear uses.
The technical solution of the utility model is:
A kind of 3～35kV ac metal closing switch gear is prevented interlocking devices with five, it is characterized in that interlocking main shaft by forming as the final drive shaft 2 of half front axle with as 15 two semiaxis of insulation axle of back semiaxis, back semiaxis is the insulation axle 15 near back door 20, and half front axle is the final drive shaft 2 near the Qianmen; With back door 20 corresponding ends the back door interlock assembly 16 that matches with back door 20 is installed at insulation axle 15, back door interlock assembly 16 is provided with a hook 21, the back door is provided with the hasp 22 that matches with it, and backlocking part 13 is installed on the other end of back door interlock assembly 16; One end of final drive shaft 2 is assemblied in the backlocking part 13, and spring 8 is installed on final drive shaft 2, and an end and the backlocking part 13 of spring 8 offset; Backlocking part 13 is installed on the interlocking installed part 6, and interlocking installed part 6 is provided with an interlock that matches with backlocking part 13; Earthed switch main shaft 11 links to each other with final drive shaft 2 by a transmission device 12.
Described transmission device 12 is made up of a pair of intermeshing bevel gear, and wherein a bevel gear links to each other with earthed switch main shaft 11 and keeps rotating synchronously, and another bevel gear links to each other with final drive shaft 2 and keeps rotating synchronously.
Described back door interlock assembly 16 links to each other with insulation axle 15 by connector.The utlity model has following advantage:
1, the utility model is multiple functional, has fully satisfied the machinery five anti-functions that require in the GB, has satisfied the requirement of insulation safety distance again, has greatly improved the fail safe of ac metal closing switch gear operation operation.
2, rational in infrastructure, backlocking mode that is adopted and backlocking device are reliable more, science, reasonable, practical, have improved ac metal closing switch gear operation reliability of operation, fail safe.
3, the kind of drive is reasonable, operates reliably laborsavingly, installs simple and convenient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the A-A broken section view of Fig. 1.
Fig. 4 is that the B of Fig. 1 is to view.
Embodiment
Following structure drawings and Examples are further described the utility model.
As shown in Figure 1.
A kind of 3～35kV ac metal closing switch gear is prevented interlocking devices with five, its interlocking main shaft forms by linking to each other near the insulation axle 15 at back door 20 with near the final drive shaft 2 at Qianmen, as shown in Figure 1, interlock assembly 16 with back door 20 interlockings is installed on the relative end in insulation axle 15 and back door 20, and this back door locking part 16 links to each other with insulation axle 15 and realizes and an insulation synchronous rotation relation by securing member 17,18 is installed.On the other end of insulation axle 15 backlocking part 13 is installed, backlocking part 13 links to each other with insulation axle 15 by sunk screw 14, and an end of final drive shaft 2 is assemblied in the backlocking part 13, guarantees synchronous rotation relation by cooperating; Spring 8 is installed on final drive shaft 2, one end and the backlocking part 13 of spring 8 offset, backlocking part 13 is installed on the interlocking installed part 6, the interlocking installed part 6 be provided with one with backlocking part 13 match and interlock (can adopt groove structure, to match, as shown in Figure 3) with boss on the backlocking part 13; Earthed switch main shaft 11 links to each other with final drive shaft 2 by a transmission device 12, this transmission device 12 is made up of a pair of intermeshing bevel gear, two bevel gear spaces are 90 degree and arrange, wherein a bevel gear links to each other with earthed switch main shaft 11 and keeps synchronous rotation relation, and friction plate 9 and circlip for shaft 10 are installed in their junction; Another bevel gear links to each other with final drive shaft 2 and keeps synchronous rotation relation.Interlocking installed part 6 is installed on column 4, and the position that right plate 1 was connected with back right plate 3 before column 4 was positioned at is also fixing with back right plate 3.
During concrete enforcement, described final drive shaft 2 can adopt six square axle structures, and as shown in Figure 4, its adopts metal material manufacturing, also can adopt and spools 15 identical insulating material manufacturings of insulating.
The transmission device 12 of described earthed switch main shaft 11 also can adopt the space lever transmission mechanism to be realized during concrete enforcement.
Key of the present utility model be solved the insulation safety between the electrified body and non-energized conductor in the switch cubicle apart from and the switch cubicle volume between contradiction, by adopting the insulation power transmission shaft, effectively guaranteed the air insulation safe distance, avoid taking place the electrical breakdown of interlock device, guaranteed that ac metal closing switch gear normally moves.When this switchgear normally moves, back door 20 is closed, promotion back door locking part 16, insulation power transmission shaft 15 compress spring 8 forward, make the intertripping of backlocking part 13 and interlocking installed part 6, motion between drive system 12 energy reliable delivery final drive shafts 2 and the earthed switch power transmission shaft 11 guarantees safe and reliable operation.Open back door 20 as need, then need earlier final drive shaft 2 to be rotated 180 degree (number of degrees are fixed in addition during space lever), earthed switch main shaft 11 rotates 90 degree, earthed switch closes a floodgate, at this moment, keep having the insulation axle 15 of synchronous rotation relation to rotate 180 degree, feasible hasp 22 disengagements that have hook set on the back door locking part 16 of synchronous rotation relation 21 and back door 20 to be provided with insulation axle 15 with final drive shaft 2, back door 20 just can be opened, and the staff just can enter in the switch cubicle and operate.In a single day open at the back door, the thrust that then acts on insulation axle 15 1 ends disappears, backlocking part 13 is being realized circumferentially locating under the effect of spring 8 in the direction at back door 20 moves into interlocking groove (as shown in Figure 3) on the interlocking installed part 6, this moment, final drive shaft 2 can't drive 13 rotations of backlocking part by connecting key, final drive shaft 2 is just by locked, earthed switch main shaft 11 also just can't rotate, earthed switch also just can't be switched on by separating brake, effectively guaranteed the safety of maintenance personal in the switch cubicle, stopped before the maintenance personal withdraws from switch cubicle, switch cubicle Men Wei shuts the generation of the combined floodgate accident under the situation.If operation by force takes place, then the moment of torsion on the final drive shaft 2 will all be delivered on backlocking part 13 and the interlocking installed part 6, and 15 effects of not bearing moment of torsion of insulation axle have guaranteed the reliability of insulation axle 15.When maintenance finishes, after back door 20 is shut, back door 20 promotes Qianmen, insulation axle 15 back direction by back door locking part 16 and moves, the elastic force that insulation axle 15 drive backlocking parts 13 overcome spring 8 leaves the groove in the interlocking installed part 6, rotate final drive shaft 2 this moment, final drive shaft 2 drives transmission device 12 and rotates, and rotates thereby drive earthed switch main shaft 11, makes the earthed switch separating brake; Meanwhile, final drive shaft 2 drives insulation axle 15 and also rotates identical angle, after hook 21 on the back door locking part 16 of insulation axle 15 1 ends rotates identical angle the hasp on the back door 20 22 is hooked, back door 20 can't be opened, whole switch cubicle has been realized interlocking, has guaranteed the safe and reliable of operating process.
Claims (3)
1, a kind of 3～35kV ac metal closing switch gear is prevented interlocking devices with five, it is characterized in that interlocking main shaft by forming as the final drive shaft (2) of half front axle with as (15) two semiaxis of insulation axle of back semiaxis, back semiaxis is the insulation axle (15) near back door (20), and half front axle is the final drive shaft (2) near the Qianmen; With back door (20) corresponding end the back door interlock assembly (16) that matches with back door (20) is installed at insulation axle (15), back door interlock assembly (16) is provided with a hook (21), the back door is provided with the hasp (22) that matches with it, and backlocking part (13) is installed on the other end of back door interlock assembly (16); One end of final drive shaft (2) is assemblied in the backlocking part (13), and spring (8) is installed on final drive shaft (2), and an end of spring (8) and backlocking part (13) offset; Backlocking part (13) is installed on interlocking installed part (6), and interlocking installed part (6) is provided with an interlock that matches with backlocking part (13); Earthed switch main shaft (11) links to each other with final drive shaft (2) by a transmission device (12).
2,3～35kV ac metal closing switch gear according to claim 1 is prevented interlocking devices with five, it is characterized in that described transmission device (12) is made up of a pair of intermeshing bevel gear, wherein a bevel gear links to each other with earthed switch main shaft (11) and keeps rotating synchronously, and another bevel gear links to each other with final drive shaft (2) and keeps rotating synchronously.
3,3～35kV ac metal closing switch gear according to claim 1 is characterized in that with five anti-interlocking devices described back door interlock assembly (16) links to each other with insulation axle (15) by connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201256656U CN201000822Y (en) | 2006-12-06 | 2006-12-06 | Five-prevention interlocking mechanism for 3~35kV AC metal closed switch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201256656U CN201000822Y (en) | 2006-12-06 | 2006-12-06 | Five-prevention interlocking mechanism for 3~35kV AC metal closed switch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000822Y true CN201000822Y (en) | 2008-01-02 |
Family
ID=39015226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201256656U Expired - Fee Related CN201000822Y (en) | 2006-12-06 | 2006-12-06 | Five-prevention interlocking mechanism for 3~35kV AC metal closed switch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000822Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606473A (en) * | 2013-12-06 | 2014-02-26 | 北京合纵科技股份有限公司 | New gear-transmission isolating mechanism with double operating holes |
| CN104577761A (en) * | 2014-12-24 | 2015-04-29 | 芜湖金牛电气股份有限公司 | Switch cabinet group |
| CN114613636A (en) * | 2020-12-07 | 2022-06-10 | 厦门华电开关有限公司 | Switch cabinet |
-
2006
- 2006-12-06 CN CNU2006201256656U patent/CN201000822Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103606473A (en) * | 2013-12-06 | 2014-02-26 | 北京合纵科技股份有限公司 | New gear-transmission isolating mechanism with double operating holes |
| CN103606473B (en) * | 2013-12-06 | 2015-12-02 | 北京合纵科技股份有限公司 | New gear drive dual operation hole interrupter |
| CN104577761A (en) * | 2014-12-24 | 2015-04-29 | 芜湖金牛电气股份有限公司 | Switch cabinet group |
| CN114613636A (en) * | 2020-12-07 | 2022-06-10 | 厦门华电开关有限公司 | Switch cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU NARI POWER ELECTRIC LAB CO., LTD. Free format text: FORMER NAME: JIANGSU POWER ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: PA Weier road Nanjing City, Jiangsu province 211100 Jiangning Science Park No. 8 Patentee after: Jiangsu Nanrui Power Electrical Co., Ltd. Address before: PA Weier road Nanjing City, Jiangsu province 211100 Jiangning Science Park No. 8 Patentee before: Jiangsu Power Electric Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 Termination date: 20131206 |