CN203288782U - Grounding wire hook with misoperation prevention mechanism - Google Patents
Grounding wire hook with misoperation prevention mechanism Download PDFInfo
- Publication number
- CN203288782U CN203288782U CN2013202712266U CN201320271226U CN203288782U CN 203288782 U CN203288782 U CN 203288782U CN 2013202712266 U CN2013202712266 U CN 2013202712266U CN 201320271226 U CN201320271226 U CN 201320271226U CN 203288782 U CN203288782 U CN 203288782U
- Authority
- CN
- China
- Prior art keywords
- spacer pin
- grounding wire
- wire hook
- clamp
- ground wire
- 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
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- 230000002265 prevention Effects 0.000 title abstract 3
- 125000006850 spacer group Chemical group 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model discloses a grounding wire hook with a misoperation prevention mechanism, which settles a problem of switching off with a grounding wire because of forgetting to remove the grounding wire hook when switching off operation is performed on a transformer station. The grounding wire hook comprises a left spring clamping sheet (9) and a right spring clamping sheet (8) in a grounding wire hook elbow (1). The grounding wire hook elbow (1) is provided with a spacing pin through hole (2). A spacing pin (3) is movably arranged in the spacing pin through hole (2). The left end of the spacing pin (3) movably abuts against the right spring clamping sheet (8). The right end of the spacing pin (3) is provided with a lockhole (5). The bottom surface of the middle part of the spacing pin (3) is provided with a spacing pin tenon (4). A spacing pressure spring (7) is arranged between the top surface of the spacing pin (3) and the inside surface of the grounding wire hook elbow (1). The lockhole (5) is internally provided with a five-operation-preventing lock (6). The grounding wire hook with the misoperation prevention mechanism has the following functions: improving correctness in switching off operation, and preventing misoperation accidents.
Description
Technical field
The present invention relates to a kind of clamp for ground wire that uses in the maintenance of transmission line, particularly a kind of clamp for ground wire that uses in the grid switching operation of transformer.
Background technology
In the grid switching operation of transformer station, be with the earth connection hook with wire ground connection, to guarantee that related work carries out smoothly.But after Substation Switch Changing Operation,, due to a variety of causes, often can forget and unload the earth connection of leaving over, cause the misoperation of transformer station's transmission of electricity, lead to a disaster.In misoperation fault over the years, earth connection is left at scene, the accident ratio maximum that the accident of switching on earth wire is shared.How the handled easily personnel operate, and what stop this type of accident is a more scabrous problem.
Summary of the invention
The invention provides a kind of hook of earth connection with misoperation-proof mechanism, thoroughly solved while in transformer station, closing a floodgate owing to forgeing the problem that accident that the earth connection hook causes switching on earth wire occurs that removes.
The present invention solves above technical problem by the following technical programs:
a kind of hook of earth connection with misoperation-proof mechanism, comprise the clamp for ground wire elbow, be respectively arranged with left spring card and right spring card in the clamp for ground wire elbow, be provided with the spacer pin through hole on the clamp for ground wire elbow, be movably set with spacer pin in the spacer pin through hole, the left end of spacer pin and right spring card movable top are connected together, right-hand member at spacer pin is provided with lockhole, passing from the spacer pin through hole after, the right-hand member of spacer pin is arranged on the outside of clamp for ground wire elbow, be provided with the spacer pin block tongue on the bottom surface, middle part of spacer pin, be provided with spacing compression spring between the medial surface of the end face of spacer pin and clamp for ground wire elbow, be provided with five anti-locksets in lockhole.
Clamp for ground wire elbow and transmission pressure are that activity is hooked together.
The present invention is by the combination of five anti-locksets and earth connection hook, solved present Substation Operating personnel while carrying out grid switching operation, and the problem of earth connection is left at scene, further improves the grid switching operation correctness, has stopped the generation of misoperation fault.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of the present invention after five anti-locksets are opened.
Embodiment
a kind of hook of earth connection with misoperation-proof mechanism, comprise clamp for ground wire elbow 1, be respectively arranged with left spring card 9 and right spring card 8 in clamp for ground wire elbow 1, be provided with spacer pin through hole 2 on clamp for ground wire elbow 1, be movably set with spacer pin 3 in spacer pin through hole 2, the left end of spacer pin 3 and right spring card 8 movable top are connected together, right-hand member at spacer pin 3 is provided with lockhole 5, passing from spacer pin through hole 2 after, the right-hand member of spacer pin 3 is arranged on the outside of clamp for ground wire elbow 1, be provided with spacer pin block tongue 4 on the bottom surface, middle part of spacer pin 3, be provided with spacing compression spring 7 between the medial surface of the end face of spacer pin 3 and clamp for ground wire elbow 1, be provided with five anti-locksets 6 in lockhole 5.
Clamp for ground wire elbow 1 is that activity is hooked together with transmission pressure.
In the operation of transformer station, follow safety regulation for operations, adopted five anti-locksets for this reason, play following five and prevent: anti-error drawing switch, anti-on-load drawing disconnecting link, anti-switching on earth wire, anti-live connection of ground wire and preventing mistakenly entering charged chamber.Install the earth connection gib head additional spacer pin and limit spring, and ground stud five is prevented the lockset reconfiguration to earth terminal,, by the operation of controlling earth connection that coordinates of spacer pin and five anti-locksets, effectively avoided operations staff's omission to tear ground wire open and caused the accident of misoperation.
Claims (2)
1. hook of the earth connection with misoperation-proof mechanism, comprise clamp for ground wire elbow (1), be respectively arranged with left spring card (9) and right spring card (8) in clamp for ground wire elbow (1), it is characterized in that, be provided with spacer pin through hole (2) on clamp for ground wire elbow (1), be movably set with spacer pin (3) in spacer pin through hole (2), the left end of spacer pin (3) and right spring card (8) movable top are connected together, right-hand member at spacer pin (3) is provided with lockhole (5), passing from spacer pin through hole (2) after, the right-hand member of spacer pin (3) is arranged on the outside of clamp for ground wire elbow (1), be provided with spacer pin block tongue (4) on the bottom surface, middle part of spacer pin (3), be provided with spacing compression spring (7) between the medial surface of the end face of spacer pin (3) and clamp for ground wire elbow (1), be provided with five anti-locksets (6) in lockhole (5).
2., according to a kind of hook of earth connection with misoperation-proof mechanism claimed in claim 1, it is characterized in that, clamp for ground wire elbow (1) is that activity is hooked together with transmission pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202712266U CN203288782U (en) | 2013-05-17 | 2013-05-17 | Grounding wire hook with misoperation prevention mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202712266U CN203288782U (en) | 2013-05-17 | 2013-05-17 | Grounding wire hook with misoperation prevention mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203288782U true CN203288782U (en) | 2013-11-13 |
Family
ID=49545129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202712266U Expired - Lifetime CN203288782U (en) | 2013-05-17 | 2013-05-17 | Grounding wire hook with misoperation prevention mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203288782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247879A (en) * | 2013-05-17 | 2013-08-14 | 国家电网公司 | Ground lead pothook with anti-misoperation mechanism |
-
2013
- 2013-05-17 CN CN2013202712266U patent/CN203288782U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247879A (en) * | 2013-05-17 | 2013-08-14 | 国家电网公司 | Ground lead pothook with anti-misoperation mechanism |
| CN103247879B (en) * | 2013-05-17 | 2015-02-18 | 国家电网公司 | Ground lead pothook with anti-misoperation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131113 Effective date of abandoning: 20150218 |
|
| RGAV | Abandon patent right to avoid regrant |