CN112216548A - Mechanical misoperation prevention locking device between grounding wire and isolating switch - Google Patents
Mechanical misoperation prevention locking device between grounding wire and isolating switch Download PDFInfo
- Publication number
- CN112216548A CN112216548A CN202011130419.0A CN202011130419A CN112216548A CN 112216548 A CN112216548 A CN 112216548A CN 202011130419 A CN202011130419 A CN 202011130419A CN 112216548 A CN112216548 A CN 112216548A
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- locking device
- isolating switch
- hole
- grounding wire
- misoperation
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- 230000002265 prevention Effects 0.000 title description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000003211 malignant effect Effects 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/10—Interlocking mechanisms for interlocking two or more switches
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention relates to the technical field of switching operation of each electrical device in a transformer substation, in particular to a misoperation preventing mechanical locking device between a grounding wire and an isolating switch; the portable multifunctional electric tool comprises a shell, wherein the top of the shell is provided with a through hole, the edge of the bottom of the shell is connected with a fixed end, and the fixed end is connected with a fixed screw; the top ends of the shells at the two ends of the through hole are respectively and fixedly connected with a spring, the bottom of the spring is connected with a limiting mechanism, a threaded hole is formed in a transverse plate between the two limiting rods, and a deflection screw rod is jointly inserted between the through hole and the threaded hole; only after the deflection screw on the misoperation preventing mechanical locking device on the grounding pile is screwed off and installed on the misoperation preventing mechanical locking device on the isolating switch, the limiting rod in the microcomputer five-prevention locking hole of the isolating switch is opened through the deflection screw, the five-prevention key can be inserted into the microcomputer five-prevention locking hole, the microcomputer five-prevention lock is opened, and the isolating switch is operated, so that a malignant misoperation accident that the grounding wire is connected with power transmission can be prevented.
Description
Technical Field
The invention relates to the technical field of switching operation of each electrical device in a transformer substation, in particular to a misoperation preventing mechanical locking device between a grounding wire and an isolating switch.
Background
In the misoperation accidents of the past year, the ground wire is left on the site, so that the accidents of closing and power transmission with the ground wire account for a large proportion, and the reason is that no mechanical locking exists between the isolating switch and the ground wire, and the misoperation prevention purpose is realized only by microcomputer five-prevention locking and standard operation of operators. But because of the reasons such as equipment ageing, tool to lock corrosion, personnel's spirit are lacked, tired, will appear leaking the maloperation accident of taking off earth connection power transmission.
How to facilitate the operation of operators and avoid the accidents which are always difficult to solve.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides the misoperation prevention mechanical locking device between the grounding wire and the isolating switch, and ensures that operators can avoid malignant misoperation accidents caused by leaving the grounding wire on site after using the product provided by the invention.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a mechanical misoperation prevention locking device between a grounding wire and an isolating switch is characterized by comprising a shell, wherein the top of the shell is provided with a through hole, the bottom edge of the shell is connected with a fixed end, and the fixed end is connected with a fixed screw; the inside rigid coupling respectively in the casing top that is located the through-hole both ends has the spring, and the equal rigid coupling of one end of all springs is inboard at the casing, and the other end is connected with stop gear jointly, the last screw hole of having seted up of stop gear, a screw rod that shifts has been inserted between through-hole and the screw hole jointly, the length of stop gear is less than the height of casing, the length of the screw rod that shifts is greater than the height of casing.
The working principle is as follows: a fixed mechanical locking device is additionally arranged between the original grounding wire and the isolating switch through a fixing screw, so that mechanical locking between the grounding wire and the isolating switch is ensured, and the occurrence of malignant misoperation accidents of power transmission with the grounding wire can be avoided. The function of the misoperation prevention mechanical locking device between the grounding wire and the isolating switch is as follows: 1. as shown in fig. 4 and 5, the mechanical anti-misoperation locking device changes the spring inside the mechanical locking device by the deflection screw rod to change the position of the limiting mechanism, so as to play a role in limiting the insertion of a five-prevention key or a grounding end of a grounding wire. 2. A screw rod with a position change: the anti-misoperation mechanical locking device additionally arranged on the five-prevention lock of the isolating switch microcomputer and the anti-misoperation mechanical locking device additionally arranged on the grounding wire grounding pile are switched to be used, two sets of locking devices share one displacement screw rod to play a mutual locking role, and the specific operation is that when the grounding wire is removed, only the displacement screw rod on the anti-misoperation mechanical locking device on the grounding pile is screwed down and installed on the anti-misoperation mechanical locking device on the isolating switch, after a limiting mechanism in the five-prevention locking hole of the isolating switch microcomputer is opened through the displacement screw rod, a five-prevention key can be inserted into the five-prevention locking hole of the microcomputer, the five-prevention lock of the microcomputer is opened, the operation of the isolating switch is carried out, and therefore, the malignant misoperation accident with grounding wire power transmission can be prevented. 3. A limiting mechanism: the five-prevention key jack and the grounding wire grounding pile jack of the microcomputer five-prevention lockset can be effectively limited, and the five-prevention key and the grounding wire can be prevented from being randomly inserted to play a locking role.
Compared with the prior art, the invention has the following beneficial effects:
the prior art is that a five-prevention microcomputer lock is additionally hung on a ground wire clamp of a ground wire, a computer key is used for firstly unlocking the ground wire clamp and additionally hanging the five-prevention microcomputer lock to remove the ground wire according to a set program, and then the five-prevention microcomputer lock on an isolating switch operating mechanism is unlocked to operate, so that the prior art can only logically achieve the function of locking in sequence, and cannot ensure that the ground wire installed on site is really removed. The mechanical misoperation prevention locking device for the grounding wire and the isolating switch, which is designed by the invention, forces a field operator to detach the grounding wire and then to perform isolation operation. The specific operation is that when the grounding wire is removed, only the position-changing screw on the misoperation-preventing mechanical locking device on the grounding pile is screwed off and installed on the misoperation-preventing mechanical locking device on the isolating switch, and after the limiting mechanism in the microcomputer five-prevention locking hole of the isolating switch is opened through the position-changing screw, the five-prevention key can be inserted into the microcomputer five-prevention locking hole, the microcomputer five-prevention lock is opened, and the isolating switch is operated, so that the malignant misoperation accident of power transmission with the grounding wire can be prevented.
Drawings
Fig. 1 is a diagram of a five-locking base of a conventional microcomputer.
Fig. 2 is a diagram of a ground wire pile.
Fig. 3 is a schematic structural view of the mechanical anti-misoperation locking device of the present invention.
Fig. 4 is a schematic view of a five-prevention lock of an isolating switch microcomputer with a mechanical anti-misoperation locking device (a locking device without a deflection screw rod).
Fig. 5 is a schematic view of a five-prevention lock of an isolating switch microcomputer additionally provided with a mechanical anti-misoperation locking device (a locking device additionally provided with a deflection screw).
Fig. 6 is a schematic view of a grounding pile of a grounding wire additionally provided with a mechanical anti-misoperation locking device (a locking device without a displacement screw rod is additionally arranged).
Fig. 7 is a schematic view of a grounding pile of a grounding wire additionally provided with a mechanical anti-misoperation locking device (a locking device additionally provided with a displacement screw).
The figures are labeled as follows:
the anti-theft lock comprises a shell 1, a through hole 2, a fixing screw 3, a spring 4, a limiting mechanism 5, a threaded hole 6, a deflection screw 7, a microcomputer five-prevention lock base 8, a microcomputer five-prevention key jack 9, a ground wire ground pile 10 and a ground wire jack 11.
Detailed Description
The present invention is further illustrated by the following specific examples.
Examples
As shown in fig. 3, a mechanical anti-misoperation locking device between a ground wire and an isolating switch is characterized by comprising a shell 1, wherein the top of the shell 1 is provided with a through hole 2, the bottom edge of the shell 1 is connected with a fixed end, and the fixed end is connected with a fixed screw 3; the inside rigid coupling respectively in 1 top of casing that is located through-hole 2 both ends has spring 4, and the equal rigid coupling of one end of all springs 4 is inboard at casing 1, and the other end is connected with stop gear 5 jointly, stop gear 5 is last to set up threaded hole 6, it has a screw rod 7 that shifts to insert jointly between through-hole 2 and the threaded hole 6, the length of stop gear is less than casing 1's height, the length of the screw rod 7 that shifts is greater than casing 1's height.
Further, stop gear 5 includes the diaphragm that the level set up and connects two gag lever posts of the vertical setting in the diaphragm bottom, spring 4 is connected with the diaphragm, is located and offers threaded hole 6 on the diaphragm between two gag lever posts.
As shown in fig. 4-7, the mechanical anti-misoperation locking device makes the spring in the mechanical locking device change by the displacement screw 7, so as to change the position of the limiting rod, and play a role in limiting the insertion of a five-prevention key or the grounding end of a grounding wire. A modified screw 7: the anti-misoperation mechanical locking device additionally arranged on the five-prevention lock of the isolating switch microcomputer and the anti-misoperation mechanical locking device additionally arranged on the grounding wire grounding pile 10 are switched to be used, two sets of locking devices share one displacement screw rod to play a mutual locking role, and the specific operation is that when the grounding wire is removed, only the displacement screw rod on the anti-misoperation mechanical locking device on the grounding wire grounding pile is screwed off and is arranged on the anti-misoperation mechanical locking device on the isolating switch, after a limiting rod in the five-prevention locking hole of the isolating switch microcomputer is opened through the displacement screw rod, a five-prevention key can be inserted into the five-prevention locking hole of the microcomputer to open the five-prevention lock of the microcomputer, the operation of the isolating switch is carried out, and therefore, the malignant misoperation accident with grounding wire power transmission can be prevented.
Further, stop gear 5 is including the diaphragm that the level set up and the cylindrical casing of connection in the diaphragm bottom, spring 4 is connected with the diaphragm, and set up threaded hole 6 on the diaphragm with cylindrical casing junction.
Further, the shell 1 is in a cuboid shape, and the through hole 2 is located in the center of the top of the shell.
Further, the threaded hole 6 is located in the center of the transverse plate.
Claims (5)
1. A mechanical misoperation preventing locking device between a grounding wire and an isolating switch is characterized by comprising a shell (1), wherein the top of the shell (1) is provided with a through hole (2), the bottom edge of the shell (1) is connected with a fixed end, and the fixed end is connected with a fixed screw (3); the inside rigid coupling respectively in casing (1) top that is located through-hole (2) both ends has spring (4), and the equal rigid coupling of one end of all spring (4) is inboard in casing (1), and the other end is connected with stop gear (5) jointly, threaded hole (6) have been seted up on stop gear (5), it has a screw rod (7) that shifts to insert jointly between through-hole (2) and screw hole (6), the length of stop lever is less than the height of casing (1), the length of the screw rod (7) that shifts is greater than the height of casing (1).
2. The mechanical anti-misoperation locking device between the grounding wire and the isolating switch according to claim 1, wherein the limiting mechanism (5) comprises a horizontal plate and two vertically arranged limiting rods connected to the bottom of the horizontal plate, the spring (4) is connected with the horizontal plate, and a threaded hole (6) is formed in the horizontal plate between the two limiting rods.
3. The mechanical misoperation preventing locking device between the grounding wire and the isolating switch as claimed in claim 1, wherein the limiting mechanism (5) comprises a horizontal plate and a cylindrical shell connected to the bottom of the horizontal plate, the spring (4) is connected with the horizontal plate, and a threaded hole (6) is formed in the horizontal plate at the connection position of the spring and the cylindrical shell.
4. The mechanical anti-misoperation locking device between the grounding wire and the isolating switch according to claim 1, wherein the housing (1) is rectangular parallelepiped, and the through hole (2) is located at the center of the top of the housing.
5. Mechanical anti-misoperation locking device between the grounding wire and the isolating switch according to any one of claims 1 to 4, wherein the threaded hole (6) is located at the center of the transverse plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011130419.0A CN112216548A (en) | 2020-10-21 | 2020-10-21 | Mechanical misoperation prevention locking device between grounding wire and isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011130419.0A CN112216548A (en) | 2020-10-21 | 2020-10-21 | Mechanical misoperation prevention locking device between grounding wire and isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112216548A true CN112216548A (en) | 2021-01-12 |
Family
ID=74056215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011130419.0A Pending CN112216548A (en) | 2020-10-21 | 2020-10-21 | Mechanical misoperation prevention locking device between grounding wire and isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112216548A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB234695A (en) * | 1924-10-06 | 1925-06-04 | Johnson And Phillips Ltd | Improvements in or relating to electric switches |
| WO2000055945A1 (en) * | 1999-03-16 | 2000-09-21 | Emka Beschlagteile Gmbh & Co. Kg | Bar lock with earthing device |
| CN102522236A (en) * | 2011-12-20 | 2012-06-27 | 上海纳杰电气成套有限公司 | Anti-misoperation interlocking mechanism of prefabricated substation transformer chamber door |
| CN204167149U (en) * | 2014-09-22 | 2015-02-18 | 天津津通华电气设备有限公司 | A kind of isolator operation five is prevented chain |
| CN206516852U (en) * | 2016-12-28 | 2017-09-22 | 长园共创电力安全技术股份有限公司 | A kind of temporary ground wire unblocks locking device |
| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
| CN207217338U (en) * | 2017-10-13 | 2018-04-10 | 上海上科电器（集团）有限公司 | A kind of follow-on anti-misoperation earthed switch interlocking mechanism |
| CN108365464A (en) * | 2018-01-23 | 2018-08-03 | 安徽柒海智能控制技术有限公司 | A kind of ground connection end anti-misoperation apparatus and its prevent maloperation method |
| CN209104009U (en) * | 2018-10-25 | 2019-07-12 | 山西长治贝克电气有限公司 | Mining flameproof feed switch is latched linkage mechanism |
| CN210778326U (en) * | 2019-12-05 | 2020-06-16 | 广西柳电电气股份有限公司 | Interlocking device of high-voltage switch cabinet |
| CN211628930U (en) * | 2019-12-27 | 2020-10-02 | 中控亿达（天津）电气设备科技有限公司 | Mechanical lock for high-voltage electrical switch cabinet |
-
2020
- 2020-10-21 CN CN202011130419.0A patent/CN112216548A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB234695A (en) * | 1924-10-06 | 1925-06-04 | Johnson And Phillips Ltd | Improvements in or relating to electric switches |
| WO2000055945A1 (en) * | 1999-03-16 | 2000-09-21 | Emka Beschlagteile Gmbh & Co. Kg | Bar lock with earthing device |
| CN102522236A (en) * | 2011-12-20 | 2012-06-27 | 上海纳杰电气成套有限公司 | Anti-misoperation interlocking mechanism of prefabricated substation transformer chamber door |
| CN204167149U (en) * | 2014-09-22 | 2015-02-18 | 天津津通华电气设备有限公司 | A kind of isolator operation five is prevented chain |
| CN206516852U (en) * | 2016-12-28 | 2017-09-22 | 长园共创电力安全技术股份有限公司 | A kind of temporary ground wire unblocks locking device |
| CN207217338U (en) * | 2017-10-13 | 2018-04-10 | 上海上科电器（集团）有限公司 | A kind of follow-on anti-misoperation earthed switch interlocking mechanism |
| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
| CN108365464A (en) * | 2018-01-23 | 2018-08-03 | 安徽柒海智能控制技术有限公司 | A kind of ground connection end anti-misoperation apparatus and its prevent maloperation method |
| CN209104009U (en) * | 2018-10-25 | 2019-07-12 | 山西长治贝克电气有限公司 | Mining flameproof feed switch is latched linkage mechanism |
| CN210778326U (en) * | 2019-12-05 | 2020-06-16 | 广西柳电电气股份有限公司 | Interlocking device of high-voltage switch cabinet |
| CN211628930U (en) * | 2019-12-27 | 2020-10-02 | 中控亿达（天津）电气设备科技有限公司 | Mechanical lock for high-voltage electrical switch cabinet |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210112 |
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| RJ01 | Rejection of invention patent application after publication |