CN2802806Y - Safety protection mechanism for back door of high-tension switch cubicle - Google Patents
Safety protection mechanism for back door of high-tension switch cubicle Download PDFInfo
- Publication number
- CN2802806Y CN2802806Y CN 200520042943 CN200520042943U CN2802806Y CN 2802806 Y CN2802806 Y CN 2802806Y CN 200520042943 CN200520042943 CN 200520042943 CN 200520042943 U CN200520042943 U CN 200520042943U CN 2802806 Y CN2802806 Y CN 2802806Y
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- back door
- protection mechanism
- switch cabinet
- tension switch
- 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 - Lifetime
Links
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses a safety protection mechanism for the back door of a high voltage switch cabinet, which comprises a locking groove arranged in the back door of the high voltage switch cabinet and a lock catch matched with the locking groove. The utility model is characterized in that the lock catch is connected with one end of an interlocking rotating shaft, the other end of the interlocking rotating shaft is connected with one end of a connecting piece, the other end of the connecting piece is connected with a central rotating shaft of a grounding switch, wherein the connecting piece comprises a first crank arm connected with the central rotating shaft of a grounding switch, a connecting rod connected with the first crank arm, and a second crank arm connected with the connecting rod, and the second crank arm is connected with the other end of the interlocking rotating shaft. The utility model adopts a mechanical interlocking mode, has higher reliability compared with electrical interlock, and combines preventative interlock with mandatory interlock so as to achieve accuracy and reliability. The utility model can be matched with a folding open door structure, thereby, the occupied area of a transformer station is reduced.
Description
Technical field:
The utility model relates to a kind of high-tension switch cabinet, particularly is used for the security protection mechanism at high-tension switch cabinet back door.
Background technology:
According to interlock requirement in the national standard " GB3906 3～35KV ac metal closing switch gear ", switch cubicle should have five anti-functions: prevent that promptly mistake from dividing, mistake is closed circuit breaker, on-load switch; Prevent the on-load branch, close isolating switch or on-load pushes the handcart stab contact of pulling out metal enclosed (armouring) formula switch cubicle; Prevent charged hanging earthing conductor or splice grafting ground switch; Prevent to be with earth connection or earthed switch to close a floodgate; Prevent the mistakenly entering into charged compartment.
Tradition 35KV high-tension switch cabinet prevents that the mistakenly entering into charged compartment from taking to add bolt fixed mode with shrouding behind cabinet, causes maintenance inconvenient like this.Guarantee as for the safety operational procedure that places one's entire reliance upon,, be easy to take place personnel casualty accidents in case violate.Conveniently employing is single behind cabinet fans the mode of opening the door to high-tension switch cabinet in order to overhaul now, though also adopt mechanical linkage mode, owing to cabinet is big, the institute of opening the door takes up space also big.In order to save electric substation's construction area, the double door mode is adopted in easy access again behind switch cabinet, and safety mainly depends on the form of electromagnetic lock, when in the circuit electricity being arranged, and the electromagnetic lock closure, not opening in the back door, reaches purpose of safety.But, therefore there is potential safety hazard because electrical system safety is reliable not as good as machinery.
Summary of the invention:
The purpose of this utility model provides the high security protection mechanism that is used for the high-tension switch cabinet back door of a kind of reliability.
To achieve these goals, the technical solution of the utility model is: the security protection mechanism that is used for the high-tension switch cabinet back door, comprise and the locked groove that is arranged on the high-tension switch cabinet back door, the snap close that matches with locked groove, it is characterized in that this snap close is connected with an end of interlocking rotating shaft, the other end of interlocking rotating shaft is connected with an end of connector, and the other end of connector is connected with the central rotating shaft of earthed switch.
Wherein connector comprises first connecting lever that is connected with the earthed switch central rotating shaft, the connecting rod that is connected with first connecting lever, and second connecting lever that is connected with connecting rod, this second connecting lever is connected with the other end of interlocking rotating shaft.Wherein connecting rod is L shaped connecting rod.
The utility model adopts the mechanical interlocking mode, and is higher than the electrical interlock reliability, and preventative interlocking is combined with mandatory interlocking, reaches accurately and reliably.The utility model can be used with collapsible opening structure, thereby reduces transformer station's floor space.
Description of drawings:
Fig. 1 is a schematic diagram of the present utility model
Fig. 2 is the switch cabinet one-time system diagram
Embodiment:
Below in conjunction with drawings and Examples the utility model is further described.
The security protection mechanism that is used for the high-tension switch cabinet back door among the figure, comprise and the locked groove 1 that is arranged on the high-tension switch cabinet back door, the snap close 2 that matches with locked groove 1, it is characterized in that this snap close 2 is connected with an end of interlocking rotating shaft 3, the other end of interlocking rotating shaft 3 is connected with an end of connector, and the other end of connector is connected with the central rotating shaft of earthed switch 4.Wherein connector comprises first connecting lever 5 that is connected with earthed switch central rotating shaft 4, the connecting rod 6 that is connected with first connecting lever 5, and second connecting lever 7 that is connected with connecting rod 6, this second connecting lever 7 is connected with the other end of interlocking rotating shaft 3.Wherein connecting rod 6 is L shaped connecting rod.Locked groove 1 is a U-lag, and snap close 2 is for inserting the inserted sheet in this U-lag.
In the present embodiment, earthed switch is installed on the switch cubicle cable vault central dividing plate, closing, dividing and decide the back door to open by earthed switch.Security protection of the present utility model mechanism mainly adopts the mechanical interlocking structure to realize, also needs certainly to be electrically connected with it to cooperate.Fig. 2 shows the primary system figure of this switch cubicle.In Fig. 2,21 is main bus bar, and 22 is circuit breaker, and 23 is instrument transformer, and 24 is electrification display, and 25 is lightning arrester, and 26 is earthed switch.As can be seen from Figure 2, one end ground connection of earthed switch 26, the other end is connected with instrument transformer 23 1 ends, and the other end of earthed switch 26 also is connected with cable vault's inner cable, the other end of instrument transformer 23 is connected with circuit breaker 22 1 ends, and the other end of circuit breaker 22 is connected with main bus bar 21.After circuit breaker disconnected, the outage of switch cubicle cable vault can be operated earthed switch at the Qianmen.Then as can be seen from Figure 1, in earthed switch 4 is closing process, the central rotating shaft of earthed switch 4 rotates, drive first connecting lever 5 and rotate 90 degree, and rotate 90 by connecting rod 6 drives second connecting lever 7 and spend, rotate thereby drive interlocking rotating shaft 3, drive snap close 2 at last and break away from the locked groove 1 that is arranged on the switch cubicle back door.So just removed the interlock snap close that is installed on the back door, the back door just can be opened.If the switch cubicle back door is not shut, then earthed switch can not be opened, and so just can guarantee that the cable vault does not have electricity, guarantees personal safety.
Claims (5)
1, the security protection mechanism that is used for the high-tension switch cabinet back door, comprise and the locked groove that is arranged on the high-tension switch cabinet back door, the snap close that matches with locked groove, it is characterized in that this snap close is connected with an end of interlocking rotating shaft, the other end of interlocking rotating shaft is connected with an end of connector, and the other end of connector is connected with the central rotating shaft of earthed switch.
2, the security protection mechanism that is used for the high-tension switch cabinet back door as claimed in claim 1, it is characterized in that connector comprises first connecting lever that is connected with the earthed switch central rotating shaft, the connecting rod that is connected with first connecting lever, second connecting lever that is connected with connecting rod, this second connecting lever is connected with the other end of interlocking rotating shaft.
3, the security protection mechanism that is used for the high-tension switch cabinet back door as claimed in claim 2 is characterized in that connecting rod is L shaped connecting rod.
4, the security protection mechanism that is used for the high-tension switch cabinet back door as claimed in claim 1 is characterized in that locked groove is a U-lag, and snap close is for inserting the inserted sheet in this U-lag.
5, the security protection mechanism that is used for the high-tension switch cabinet back door as claimed in claim 1, an end ground connection that it is characterized in that earthed switch, the other end is connected with instrument transformer one end, the other end of earthed switch also is connected with cable vault's inner cable, the other end of instrument transformer is connected with circuit breaker one end, and the other end of circuit breaker is connected with main bus bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520042943 CN2802806Y (en) | 2005-06-28 | 2005-06-28 | Safety protection mechanism for back door of high-tension switch cubicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520042943 CN2802806Y (en) | 2005-06-28 | 2005-06-28 | Safety protection mechanism for back door of high-tension switch cubicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2802806Y true CN2802806Y (en) | 2006-08-02 |
Family
ID=36847510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520042943 Expired - Lifetime CN2802806Y (en) | 2005-06-28 | 2005-06-28 | Safety protection mechanism for back door of high-tension switch cubicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2802806Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856113A (en) * | 2012-08-15 | 2013-01-02 | 徐州新电高科电气有限公司 | Electric locking circuit of maintenance backdoor of high-voltage power distribution cabinet |
| CN113690750A (en) * | 2021-08-02 | 2021-11-23 | 广东友源电气有限公司 | Mechanical interlocking structure between movable incoming cabinet and fixed metering cabinet |
-
2005
- 2005-06-28 CN CN 200520042943 patent/CN2802806Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102856113A (en) * | 2012-08-15 | 2013-01-02 | 徐州新电高科电气有限公司 | Electric locking circuit of maintenance backdoor of high-voltage power distribution cabinet |
| CN113690750A (en) * | 2021-08-02 | 2021-11-23 | 广东友源电气有限公司 | Mechanical interlocking structure between movable incoming cabinet and fixed metering cabinet |
| CN113690750B (en) * | 2021-08-02 | 2024-01-30 | 广东友源电气有限公司 | Mechanical interlocking structure between movable wire inlet cabinet and fixed metering cabinet |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203039283U (en) | Locking mechanism for earthing switch of switch cabinet | |
| CN201699343U (en) | Indoor metal armouring draw-out switchgear | |
| CN2802806Y (en) | Safety protection mechanism for back door of high-tension switch cubicle | |
| CN105932586A (en) | High-voltage switch cabinet | |
| CN202524003U (en) | High-voltage switchgear | |
| CN102646941A (en) | High-voltage switch cabinet | |
| CN205195078U (en) | Operation of haplopore unipolar realizes five miniaturized stationary cabinets of preventing | |
| CN201243170Y (en) | Central-positioned switch cabinet | |
| CN105470830A (en) | Small-sized fixed type switch cabinet for realizing five-prevention by single-hole single-shaft operation and control method for small-sized fixed type switch cabinet | |
| CN201887370U (en) | High-tension switch equipment used in highland | |
| CN2521797Y (en) | Indoor metal-clad with drawable switch equipment | |
| CN109066315B (en) | Binding post protection device and direct current distribution panel | |
| CN100565744C (en) | Low-voltage combined type fuse blade switch on outdoor pole | |
| CN204668758U (en) | A kind of High-low voltage switch cabinet | |
| CN201000822Y (en) | Five-prevention interlocking mechanism for 3~35kV AC metal closed switch equipment | |
| CN209544911U (en) | A kind of 40.5kV switchgear for high altitude localities | |
| CN207117032U (en) | A kind of PT cabinets with disconnecting switch | |
| CN207603019U (en) | A kind of high-tension switch cabinet with breaker couplet on the door lock function | |
| CN202307602U (en) | Interlocking device and switch cabinet comprising interlocking device | |
| CN105305622A (en) | Anti-misoperation distribution cabinet capable of remote control | |
| CN201639150U (en) | Back door interlocking device for high-voltage complete-set switch cabinet | |
| CN106253114B (en) | A kind of oil-immersed and high-voltage motor switch case | |
| CN213459492U (en) | Locking device of switch cabinet | |
| CN112448305A (en) | Outdoor landing high-voltage demarcation electric energy metering box with mechanical interlock | |
| CN202332633U (en) | Interlocking mechanism between grounding switch and rear door of switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150628 Granted publication date: 20060802 |
|
| EXPY | Termination of patent right or utility model |