CN203911323U - Centrally installed switchgear valve electrical locking device - Google Patents
Centrally installed switchgear valve electrical locking device Download PDFInfo
- Publication number
- CN203911323U CN203911323U CN201420354944.4U CN201420354944U CN203911323U CN 203911323 U CN203911323 U CN 203911323U CN 201420354944 U CN201420354944 U CN 201420354944U CN 203911323 U CN203911323 U CN 203911323U
- Authority
- CN
- China
- Prior art keywords
- locking
- valve
- lockweight
- lower valve
- control box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000033001 locomotion Effects 0.000 claims description 12
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 206010029987 Obturator Hernia Diseases 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001256 tonic effect Effects 0.000 description 1
Abstract
The utility model discloses a centrally installed switchgear valve electrical locking device, pertains to the field of electric power technologies, and specifically relates to an armored cabinet upper and lower valve locking system. According to the device, an electrical locking portion is added. A locking control box is arranged on the sidewall of the cabinet body. One end of a lower valve locking pull wire is connected with a lower valve pull rod of the locking control box, and the other end of the lower valve locking pull wire passes through a locking pull wire elbow and is connected with a lower valve locking pin. One end of an upper valve locking pull wire is connected with an upper valve pull rod of the locking control box, and the other end of the upper valve locking pull wire passes through the locking pull wire elbow and connected with an upper valve locking pin. A locking pin fixation sleeve is fixed on a locking fixation plate. According to the utility model, electrical signals of a switch cabinet circuit breaker trolley and signals of a main circuit contact high-voltage sensor can be acquired; the electrical signals are processed logically by using a MCU; and once connecting levers are locked by the locking pins, unlocking cannot be realized through other methods. Thus, the disadvantage that the valves are locked completely regardless of conditions in the conventional sense can be solved.
Description
Technical field
The utility model belongs to power technology field, is specifically related to the block sytem of the upper and lower valve of a kind of armored cabinet.
Background technology
Armored cabinet, due to " five is anti-" function comparatively perfect, now puts into operation in electric power confession, transmission of electricity department in a large number.The inner central cabinet valve mechanism of armored cabinet is the safety device between function of tonic chord parts and main circuit contact box movably, the scissor connecting lever being connected with valve support that its structure generally comprises the upper valve plate that is positioned at contact box mounting plate the place ahead and lower valve plate, the valve support being connected with two valve plates, is symmetrical set, and the left and right opening door device that is arranged on functional part both sides.
When needs power-off or while keeping in repair, functional part departs from the connection of main circuit connector box, retreat to outside experiment position or high-tension switch cabinet, the former upper and lower valve of opening of valve mechanism is closed automatically, main circuit contact box sealing isolation by electrification in high voltage, enters the safety of carrying out the maintenance personal of maintenance work in cabinet to ensure.But when the circuit breaker of present armored cabinet shifts out cabinet and overhauls outward, manual operation or staff still can open valve baffle plate, occur similar misoperation once staff, very easily touch charged main circuit contact box, cause great electric shock accidents.
In existing market, occurred the locking device of part valve mechanism, such device mainly adopts mechanical latching, is optional blocking mechanism.When the upper and lower valve of valve mechanism is closed automatically, or need operating personnel to implement locking, or by machine automatization locking, played certain protection, but also had other problem.If equipment needs operating personnel to think locking, or equipment is not added whole lockings of " condition " by mechanical latching.Its maximum shortcoming is non-imposed locking device, and after mechanism's locking, the release by force that can think, also there will be certain misoperation, and the requirement of this same electric power " anti-error " device does not conform to.
Summary of the invention
The purpose of this utility model is to provide a kind of middle-placed switch cabinet valve electric locking device, to address the above problem.
The utility model is mainly partly comprised of mechanical latching, solving the technical scheme that its technical problem adopts is: this device increases electric blocking part, lock-in control box is arranged on cabinet sidewall, the lower valve pull lever of one end of lower valve locking bracing wire and lock-in control box is connected, and the other end connects with lower valve lockweight through locking stay wire bend elbow; The upper valve pull lever of one end of upper valve locking bracing wire and lock-in control box is connected, and the other end connects through the same valve lockweight of locking stay wire bend elbow; Lockweight fixed cover is fixed on locking fixed head.
Described locking stay wire bend elbow is connected with the Guy wire guide-tube of lower valve locking bracing wire, upper valve locking bracing wire respectively.
Described lockweight fixed head is fixed on a side of scissor connecting lever.
Described lock-in control box is connected with circuit breaker trolley position switch electric terminal, line side electrification display electric terminal and bus bar side electrification display electric terminal respectively.
Described lower valve lockweight free movement in lockweight fixed cover, the free movement in lockweight fixed cover of upper valve lockweight, the motion of lower valve lockweight is to be driven by the lower valve locking bracing wire through locking stay wire bend elbow, and the motion of upper valve lockweight is to be driven by the upper valve locking bracing wire through locking stay wire bend elbow.
Adopt good effect of the present utility model to be: can gather the electric signal of breaker of switch cabinet dolly, whether judgment device shifts out; Can gather the signal of main circuit contact high pressure sensor; Using MCU that electric signal is carried out to logic processing processes; The locking of upper and lower valve is adopted to " independence " closedown mode, when the valve in the charged locking of contact box that enters of main circuit; When the contact box that goes out of main circuit has anti-power transmission, valve under locking; And be mandatory locking, once after lockweight locking connecting lever, release by other means.Thereby solved in traditional sense the shortcoming regardless of the complete atresia valve of condition.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Structural representation when Fig. 1 is the utility model locking;
Structural representation when Fig. 2 is the utility model release;
Fig. 3 is the workflow diagram of the logic card of lock-in control box of the present utility model.
Valve lockweight on valve connecting lever, 13 on valve locking bracing wire in 1 locking controller box, 2 bus bar side electrification display electric terminals, 3 line side electrification display electric terminals, 4 circuit breaker trolley position switch electric terminals, 5 times valve locking bracing wires, 6 in figure, 7 locking stay wire bend elbows, 8 lockweight fixed heads, 9 lockweight fixed covers, 10 times valve lockweights, 11 times valve connecting levers, 12.
Embodiment
As shown in the figure: this device increases electric blocking part, and lock-in control box 1 is arranged on cabinet sidewall, and the lower valve pull lever of one end of lower valve locking bracing wire 5 and lock-in control box 1 is connected, the other end connects with lower valve lockweight 10 through locking stay wire bend elbow 7; The upper valve pull lever of one end of upper valve locking bracing wire 6 and lock-in control box 1 is connected, and the other end connects through the same valve lockweight 13 of locking stay wire bend elbow 7; Lockweight fixed cover 9 is fixed on locking fixed head 8.
Described locking stay wire bend elbow 7 is connected with the Guy wire guide-tube of lower valve locking bracing wire 5, upper valve locking bracing wire 6 respectively.
Described lockweight fixed head 8 is fixed on a side of scissor connecting lever.
Described lock-in control box 1 is connected with circuit breaker trolley position switch electric terminal, line side electrification display electric terminal and bus bar side electrification display electric terminal respectively; Circuit breaker trolley position switch electric terminal 4 connects position signalling, the bus bar side electrification display electric terminal 2 connection bus side charged display device electric signals of circuit breaker trolley; Line side electrification display electric terminal 3 wiring trackside charged display device electric signals.
Described lower valve lockweight free movement in lockweight fixed cover, the free movement in lockweight fixed cover of upper valve lockweight, the motion of lower valve lockweight is to be driven by the lower valve locking bracing wire through locking stay wire bend elbow, and the motion of upper valve lockweight is to be driven by the upper valve locking bracing wire through locking stay wire bend elbow.
After system energising, the self check of locking controller box completes, locking controller box detects the circuit breaker trolley position signalling of circuit breaker trolley position switch electric terminal, judge that whether circuit breaker trolley is in experiment position or service position, if at experiment position or service position (in cabinet), the inner MCU of locking controller box starts locking electric control loop, drive the pull lever on locking controller box, pull lever pulls valve locking bracing wire and lower valve locking bracing wire, go up subsequently valve locking bracing wire and lower valve locking bracing wire pulls again valve lockweight and lower valve lockweight, upper valve lockweight and lower valve lockweight are pulled into respectively in the locking guide of locking fixed cover, now go up the obturator hernia that valve lockweight departs from upper valve connecting lever, lower valve lockweight departs from the obturator hernia of lower valve connecting lever, reach release valve.
If locking controller box detects the circuit breaker trolley position of road device dolly position switch electric terminal and is dragged away from cabinet, system judges respectively the electric signal of bus bar side electrification display electric terminal and the electric signal of line side electrification display electric terminal, judge entering contact box and going out whether electrification in high voltage of contact box of switch cubicle, if only enter contact box, there is high-voltage signal, locking controller box drives internal electric control loop, drive the pull lever on locking controller box, pull lever drives upper valve locking bracing wire, upper valve bracing wire promotes upper valve lockweight, upper valve lockweight stretches out the upper valve locking guide in lockweight fixed cover, extend in the obturator hernia of valve connecting lever, valve baffle plate in locking.
If only go out contact box, there is high-voltage signal, the pull lever on locking controller box, pull lever drives lower valve locking bracing wire, lower valve bracing wire promotes lower valve lockweight, lower valve lockweight stretches out the lower valve locking guide in lockweight fixed cover, extend in the obturator hernia of lower valve connecting lever valve baffle plate under locking.
Claims (5)
1. a middle-placed switch cabinet valve electric locking device, mainly by mechanical latching, partly formed, it is characterized in that: this device increases electric blocking part, lock-in control box is arranged on cabinet sidewall, the lower valve pull lever of one end of lower valve locking bracing wire and lock-in control box is connected, and the other end connects with lower valve lockweight through locking stay wire bend elbow; The upper valve pull lever of one end of upper valve locking bracing wire and lock-in control box is connected, and the other end connects through the same valve lockweight of locking stay wire bend elbow; Lockweight fixed cover is fixed on locking fixed head.
2. middle-placed switch cabinet valve electric locking device according to claim 1, is characterized in that: locking stay wire bend elbow is connected with the Guy wire guide-tube of lower valve locking bracing wire, upper valve locking bracing wire respectively.
3. middle-placed switch cabinet valve electric locking device according to claim 1, is characterized in that: lockweight fixed head is fixed on a side of scissor connecting lever.
4. middle-placed switch cabinet valve electric locking device according to claim 1, is characterized in that: lock-in control box is connected with circuit breaker trolley position switch electric terminal, line side electrification display electric terminal and bus bar side electrification display electric terminal respectively.
5. middle-placed switch cabinet valve electric locking device according to claim 1, it is characterized in that: the free movement in lockweight fixed cover of lower valve lockweight, the free movement in lockweight fixed cover of upper valve lockweight, the motion of lower valve lockweight is to be driven by the lower valve locking bracing wire through locking stay wire bend elbow, and the motion of upper valve lockweight is to be driven by the upper valve locking bracing wire through locking stay wire bend elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354944.4U CN203911323U (en) | 2014-06-30 | 2014-06-30 | Centrally installed switchgear valve electrical locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420354944.4U CN203911323U (en) | 2014-06-30 | 2014-06-30 | Centrally installed switchgear valve electrical locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203911323U true CN203911323U (en) | 2014-10-29 |
Family
ID=51785569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420354944.4U Expired - Fee Related CN203911323U (en) | 2014-06-30 | 2014-06-30 | Centrally installed switchgear valve electrical locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203911323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877223A (en) * | 2017-03-24 | 2017-06-20 | 国网甘肃省电力公司兰州供电公司 | A kind of valve mechanism locking system |
-
2014
- 2014-06-30 CN CN201420354944.4U patent/CN203911323U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106877223A (en) * | 2017-03-24 | 2017-06-20 | 国网甘肃省电力公司兰州供电公司 | A kind of valve mechanism locking system |
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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 |
Granted publication date: 20141029 Termination date: 20160630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |