CN113593987A - Secondary air-break anti-misoperation locking device and anti-misoperation locking method - Google Patents
Secondary air-break anti-misoperation locking device and anti-misoperation locking method Download PDFInfo
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- CN113593987A CN113593987A CN202110686499.6A CN202110686499A CN113593987A CN 113593987 A CN113593987 A CN 113593987A CN 202110686499 A CN202110686499 A CN 202110686499A CN 113593987 A CN113593987 A CN 113593987A
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- lock
- hole
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- misoperation
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- 238000000034 method Methods 0.000 title claims description 9
- 239000011258 core-shell material Substances 0.000 claims abstract description 19
- 230000007704 transition Effects 0.000 claims description 9
- 230000002265 prevention Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims 2
- 230000006978 adaptation Effects 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/24—Interlocking, locking, or latching mechanisms for interlocking two or more parts of the mechanism for operating contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/285—Locking mechanisms incorporated in the switch assembly and operable by a key or a special tool
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention relates to a secondary air-break anti-misoperation locking device, which comprises: the handle is provided with a switch slot, one end of the handle extends out of the switch slot, the handle comprises a lock core plug provided with a key hole, a lock core of a lock core shell arranged outside the lock core plug, two clamping hole groups formed by two clamping holes symmetrically arranged on two sides of the switch slot, an outer barrel with an inner diameter matched with the outer diameter of the lock core shell and an upper portion sleeved outside the lock core shell, two clamping pins which are in one-to-one correspondence with the two clamping holes of the clamping hole groups and are symmetrically arranged at the lower portion of the outer barrel, a locking device of a locking seat connected with the lower end of the lock core shell is arranged, a connecting column connected with the lower end of the locking seat is arranged at the upper end, a supporting block connected with the lower end of the connecting column is arranged at the upper end of the supporting block, and an anti-rotation component between the lock core shell and the outer barrel is arranged. The secondary air-open anti-misoperation locking device has the advantages that air-open cannot be put on or off by mistake, and the safety is good.
Description
Technical Field
The invention relates to the technical field of electric power safety, in particular to a secondary air-break anti-misoperation locking device and an anti-misoperation locking method.
Background
In the daily work of transformer fortune dimension, the staff is after transformer substation's primary equipment operates, when needing to have a power failure to overhaul, often need through having the secondary empty power (air switch) to turn on, guarantee maintainer operation safety. The structure of the air switch can be known from a novel air switch disclosed in the utility model of the chinese patent application No. 202021402136.2; relatively speaking, the safety measures of primary equipment are perfect and mature, but for the secondary air switch of the secondary control power switch and the device power switch exposed outside on the protection screen, no locking device is provided, and the current method for solving the problem is to paste operation cautions beside the corresponding secondary air switch setting position to remind an operator not to mistakenly input or mistakenly withdraw the corresponding secondary air switch, so that the problem cannot be guaranteed only by the correct execution of a management system, and artificial subjective factors are increased. When the upper part device of the same protection screen is powered off and other devices are electrified, the secondary air switch of the power supply of the electrified device is easily thrown and withdrawn by mistake, so that the protection device in normal operation is mistakenly operated or refused to operate, a power grid accident is caused, and hidden dangers are buried for the safety operation of equipment and the personal safety of operation and maintenance personnel. Therefore, it is an urgent need to solve the problem of designing a secondary air-break mis-locking prevention device and a mis-locking prevention method with good safety and no mis-throw.
Disclosure of Invention
The invention aims to overcome the defects that the conventional secondary air switch is not provided with a locking device, is easy to throw and withdraw by mistake and has poor safety, and provides a secondary air switch anti-misoperation locking device and an anti-misoperation locking method which are good in safety and can not throw and withdraw by mistake.
The specific technical scheme of the invention is as follows:
a secondary air-break anti-misoperation lockout device comprises: the handle is provided with a switch slot, one end of the handle extends out of the switch slot, the handle comprises a lock core plug provided with a key hole, a lock core of a lock core shell arranged outside the lock core plug, two clamping hole groups formed by two clamping holes symmetrically arranged on two sides of the switch slot, an outer barrel with an inner diameter matched with the outer diameter of the lock core shell and an upper portion sleeved outside the lock core shell, two clamping pins which are in one-to-one correspondence with the two clamping holes of the clamping hole groups and are symmetrically arranged at the lower portion of the outer barrel, a locking device of a locking seat connected with the lower end of the lock core shell is arranged, a connecting column connected with the lower end of the locking seat is arranged at the upper end, a supporting block connected with the lower end of the connecting column is arranged at the upper end of the supporting block, and an anti-rotation component between the lock core shell and the outer barrel is arranged.
Preferably, the anti-rotation assembly includes: the anti-rotation block is coaxial with the outer barrel and is connected with the upper end of the outer barrel; the anti-rotation blocks are correspondingly positioned in the anti-rotation grooves one by one, and the inner ends of the anti-rotation blocks are connected with the outer side of the lock cylinder shell in a surrounding manner; the diameter of the inner hole of the retainer ring is matched with the outer diameter of the lock cylinder shell.
Preferably, the inner side of the outer cylinder is surrounded with a ring groove communicated with the upper end of the outer cylinder, and a pressure spring which is arranged in the ring groove and two ends of which press the lower end ring of the ring groove and the lower end of the anti-rotation block in a one-to-one correspondence manner.
Preferably, the locking device comprises: the locking mechanism comprises a locking bolt hole arranged in a locking seat, a locking bolt, a through hole, a lock catch hole and an eccentric wheel, wherein the upper side of a side wall is provided with a transverse through groove, one end of the locking bolt is positioned in the locking bolt hole, the through hole is arranged at the upper end of the locking seat and is opposite to the transverse through groove, the lock catch hole is arranged at the side wall in an outer barrel and is opposite to the other end of the locking bolt, and the eccentric wheel is arranged at the lower end of a lock plug and penetrates through the through hole and is positioned in the transverse through groove; when the anti-misoperation lock is performed, the other end of the lock tongue is inserted into the lock catch hole.
Preferably, the elastic buckle comprises: the lower end of the transition section is inclined inwards, the upper end of the transition section is connected with the lower end of the mounting section, and the inner end of the clamping pin is connected with the lower end of the transition section; the distance between the inner ends of the clamping feet of the two elastic buckles in the free state is smaller than the width of the supporting block.
Preferably, the upper end of the lock cylinder shell is provided with a flange, and the side wall of the flange is provided with a plurality of depressions communicated with the lower end of the flange.
Preferably, the lower ends of the two side ends of the supporting block are respectively provided with a guide chamfer.
A secondary air-break anti-misoperation lockout method of a lockout device, the secondary air-break anti-misoperation lockout device is the above-mentioned secondary air-break anti-misoperation lockout device, (1) when the air-break is broken, press the lock core to make the retaining ring block the flange spacing, the lock core shell drives the lockout seat, joint pin and brace bar to move downwards, the brace bar is supported between two elastic buckles, the outer ends of two clamping feet are inserted into two clamping holes of a clamping hole group one by one, insert the key into the key hole to rotate the lock core plug and eccentric wheel and drive the lock tongue to move, another end of the lock tongue is inserted into the locking hole, the clamping feet block the handle to realize the anti-misoperation lockout; (2) when the communication is opened, the lock cylinder is pressed downwards to enable the retainer ring to block the flange for limiting, the lock cylinder shell drives the locking seat, the connecting column and the supporting block to move downwards, the supporting block is supported between the two elastic buckles, the outer ends of the two clamping pins are inserted into two clamping holes of the other clamping hole group in a one-to-one correspondence mode, a key is inserted into a key hole to rotate the lock cylinder plug and the eccentric wheel and drive the lock tongue to move, the other end of the lock tongue is inserted into the locking hole, and the clamping pins block the handle to realize anti-misoperation locking; (3) the anti-misoperation lock is released by inserting a key into a key hole to reversely rotate a lock cylinder plug and an eccentric wheel and drive a lock tongue to move, the other end of the lock tongue withdraws from a lock catch hole, a lock cylinder is pulled upwards, a lock cylinder shell drives a locking seat, a connecting column and a supporting block to move upwards, the lower end of a check ring blocks the upper end of an anti-rotation block to be limited, the supporting block withdraws from between two elastic buckles, the outer ends of two clamping pins correspondingly withdraw from two clamping holes of a clamping hole group one by one, the anti-misoperation lock is relieved, and the handle is pulled to perform idle-opening input or withdrawal operation.
Compared with the prior art, the invention has the beneficial effects that: the secondary air-open anti-misoperation locking device has the advantages that air-open cannot be put on or off by mistake, and the safety is good. Prop between two elasticity buckles through the bracer, during two calorie holes of card punch combination were inserted to two card foot outer ends one-to-one, inserted the key hole and rotated lock core stopper and eccentric wheel and drive the spring bolt motion, during the other end of spring bolt inserted the hasp hole, the card foot blocked the handle and realizes preventing the mistake shutting, and simple structure is reliable. Prevent changeing the subassembly and do benefit to and rotate when preventing the lock core shell up-and-down motion, the position is accurate when making the bracer prop between two elasticity buckles, does benefit to two block foot outer ends one-to-one and accurately inserts in two card holes of card punch combination. The retainer ring is connected with the upper end of the outer cylinder to facilitate assembly. The upper end of the lock cylinder shell is provided with a flange which is beneficial to limiting when the lock cylinder moves downwards, and the side wall of the flange is provided with a plurality of recesses communicated with the lower end of the flange which are beneficial to pulling up the lock cylinder. The pressure spring is beneficial to the upward movement and the limit of the lock cylinder. The lower ends of the two side ends of the supporting block are respectively provided with a guide chamfer, so that the supporting block can be inserted between the two elastic buckles conveniently. Every transformer substation can dispose a plurality of secondary sky and open anti-misoperation lockout device, install on the secondary sky that is probably the maloperation when the safety measure is arranged, install secondary sky and open anti-misoperation lockout device on the sky and the shutting back, unable random operation sky is opened, can only take off secondary sky and open anti-misoperation lockout device after using the key unblock, reached the shutting purpose, prevent that the miscarrying from moving back and influencing the protection device action, thereby prevented that secondary sky from opening the electric power accident that the miscarrying moved back and caused, the safe and stable operation ability of electric power system has been improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of the present invention when it is not latched.
In the figure: the lock comprises a switch groove 1, a handle 2, a lock cylinder plug 3, a lock cylinder shell 4, a clamping hole 5, an outer cylinder 6, a clamping pin 7, a locking seat 8, a connecting column 9, a supporting block 10, an anti-rotating groove 11, an anti-rotating block 12, a check ring 13, an annular groove 14, a pressure spring 15, a lock tongue hole 16, a transverse through groove 17, a lock tongue 18, a through hole 19, a locking hole 20, an eccentric wheel 21, an installation section 22, a transition section 23, a flange 24, a recess 25 and a guide chamfer 26.
Detailed Description
The invention will be further described with reference to the drawings.
As shown in the attached figures 1 and 2: a secondary air-break anti-misoperation lockout device comprises: the hollow switch is provided with a switch groove 1 and a handle 2 with one end extending out of the switch groove 1, and comprises a lock cylinder plug 3 with a key hole (not shown), a lock cylinder of a lock cylinder shell 4 arranged outside the lock cylinder plug 3, two clamping hole groups consisting of two clamping holes 5 symmetrically arranged on two side edges of the switch groove 1, an outer cylinder 6 with the inner diameter in clearance fit with the outer diameter of the lock cylinder shell 5 and the upper part sleeved outside the lock cylinder shell 5, two elastic buckles which are provided with two clamping pins 7 in one-to-one correspondence with the two clamping holes 5 of the clamping hole groups and symmetrically arranged at the lower part of the outer cylinder 6, a locking device provided with a locking seat 8 with the upper end connected with the lower end of the lock cylinder shell 5, a connecting column 9 with the lower end of the locking seat 8 in threaded connection, a supporting block 10 with the upper end and the lower end of the connecting column 9 integrally formed, and an anti-rotation component arranged between the lock cylinder shell 5 and the outer cylinder 6.
In this embodiment:
the anti-rotation component comprises: the anti-rotation device comprises two anti-rotation grooves 11 symmetrically arranged on the side wall of the outer barrel 6 and communicated with the upper end of the outer barrel 6, anti-rotation blocks 12 which are the same in number as the anti-rotation grooves 11 and are in clearance fit with the anti-rotation grooves 11 in width, and a check ring 13 which is coaxial with the outer barrel 6 and is in threaded connection with the upper end of the outer barrel 6; the anti-rotation blocks 12 are correspondingly positioned in the anti-rotation grooves 11 one by one, and the inner ends of the anti-rotation blocks 12 are bonded with the outer side of the lock cylinder shell 5; the diameter of the inner hole of the retainer ring 13 is in clearance fit with the outer diameter of the lock cylinder shell 5.
The inner side of the outer cylinder 6 is surrounded with a ring groove 14 communicated with the upper end of the outer cylinder 6, a pressure spring 15 which is arranged in the ring groove 14 and two ends of which are in one-to-one correspondence to press the lower end ring of the ring groove 14 and the lower end of the anti-rotation block 12.
The locking device comprises: a lock tongue hole 16 arranged in the locking seat 8, a lock tongue 18 with a transverse through groove 17 arranged at the upper side of the side wall and one end positioned in the lock tongue hole 16, a through hole 19 arranged at the upper end of the locking seat 8 and opposite to the transverse through groove 17, a lock catch hole 20 arranged at the inner side wall of the outer cylinder 6 and opposite to the other end of the lock tongue 18, and an eccentric wheel 21 which is arranged at the lower end of the lock cylinder plug 4 and passes through the through hole 19 and is positioned in the transverse through groove 17; when the anti-misoperation lock is performed, the other end of the lock tongue 18 is inserted into the lock catch hole 20.
The elasticity buckle include: the lower end of the mounting section 22 is inclined inwards, the upper end of the mounting section 22 is integrally connected with the lower end of the transition section 23, and the inner end of the clamping foot 7 is integrally connected with the lower end of the transition section 23; the distance between the inner ends of the clamping feet 7 of the two elastic buckles in the free state is smaller than the width of the supporting block 10.
The upper end of the lock cylinder shell 5 is provided with a flange 24, and the side wall of the flange 24 is provided with a plurality of dents 25 which are communicated with the lower end of the flange 24.
The lower ends of the two side ends of the supporting block 10 are respectively provided with a guiding chamfer 26.
A secondary air-break anti-misoperation lockout method of a lockout device, the secondary air-break anti-misoperation lockout device is the above-mentioned secondary air-break anti-misoperation lockout device, (1) when the air-break is broken, press the lock core to make the retaining ring 13 block the flange 24 spacing, the lock core shell 5 drives the lockout seat 8, joint pin 9 and brace 10 to move downward, the brace 10 is supported between two elastic buckles, the outer ends of two card feet 7 are inserted into two card holes 5 of a card hole group one by one, insert the key into the key hole to rotate the lock core plug 4 and eccentric wheel 21 and drive the lock tongue 18 to move, another end of the lock tongue 18 is inserted into the lock hole 20, the card foot 7 blocks the handle 2 to realize the anti-misoperation lockout; (2) when the communication is opened, the lock cylinder is pressed downwards to enable the retainer ring 13 to block the flange 24 for limiting, the lock cylinder shell 5 drives the locking seat 8, the connecting column 9 and the supporting block 10 to move downwards, the supporting block 10 is supported between the two elastic buckles, the outer ends of the two clamping pins 7 are inserted into the two clamping holes 5 of the other clamping hole group in a one-to-one correspondence mode, a key is inserted into a key hole to rotate the lock cylinder plug 4 and the eccentric wheel 21 and drive the lock tongue 18 to move, the other end of the lock tongue 18 is inserted into the locking hole 20, and the clamping pins 7 block the handle 2 to achieve anti-misoperation locking; (3) the key is inserted into the key hole to reversely rotate the lock core plug 4 and the eccentric wheel 21 and drive the lock tongue 18 to move, the other end of the lock tongue 18 exits from the lock catch hole 20, the lock core is pulled upwards, the lock core shell 5 drives the locking seat 8, the connecting column 9 and the supporting block 10 to move upwards, the lower end of the check ring 13 blocks the upper end of the anti-rotation block 12 to limit, the supporting block 10 exits from between two elastic buckles, the outer ends of the two clamping feet 7 correspondingly exit from the two clamping holes 5 of the clamping hole group one by one, the anti-misoperation locking is relieved, and the handle 2 is pulled to perform the idle-opening input or idle-operation.
In addition to the above embodiments, the technical features or technical data of the present invention may be reselected and combined to form new embodiments within the scope of the claims and the specification of the present invention, which are all realized by those skilled in the art without creative efforts, and thus, the embodiments of the present invention not described in detail should be regarded as specific embodiments of the present invention and are within the protection scope of the present invention.
Claims (8)
1. A secondary air-break anti-misoperation lockout device comprises: be equipped with the empty of switch groove, the handle that one end stretches out the switch groove and open, including the lock core stopper that is equipped with the key hole, arrange the lock core of the outer lock core shell of lock core stopper in, characterized by, the empty locking device of preventing mistake that opens of secondary still include: two card hole groups that the card hole that locates the switch slot both sides limit by two symmetries constitutes, internal diameter and lock core shell external diameter adaptation and upper portion cover are at the urceolus outside the lock core shell, two are equipped with the card foot of two card hole one-to-ones with card hole group and the symmetry adorn in the elasticity buckle of urceolus lower part, the blocking device of the locking seat that is equipped with upper end and lock core shell lower extreme and is connected, the spliced pole that upper end and locking seat lower extreme are connected, the kicking block that upper end and spliced pole lower extreme are connected locates preventing between lock core shell and the urceolus and changes the subassembly.
2. The secondary air-break mis-lockout as claimed in claim 1 wherein the anti-rotation assembly comprises: the anti-rotation block is coaxial with the outer barrel and is connected with the upper end of the outer barrel; the anti-rotation blocks are correspondingly positioned in the anti-rotation grooves one by one, and the inner ends of the anti-rotation blocks are connected with the outer side of the lock cylinder shell in a surrounding manner; the diameter of the inner hole of the retainer ring is matched with the outer diameter of the lock cylinder shell.
3. The secondary air-break mis-locking prevention device as claimed in claim 1, wherein the inner side of the outer cylinder is surrounded by a ring groove penetrating the upper end of the outer cylinder, and a pressure spring disposed in the ring groove and having two ends for pressing the lower end ring of the ring groove and the lower end of the anti-rotation block in a one-to-one correspondence manner.
4. The secondary air-break mis-lockout as claimed in claim 1 wherein the lockout comprises: the locking mechanism comprises a locking bolt hole arranged in a locking seat, a locking bolt, a through hole, a lock catch hole and an eccentric wheel, wherein the upper side of a side wall is provided with a transverse through groove, one end of the locking bolt is positioned in the locking bolt hole, the through hole is arranged at the upper end of the locking seat and is opposite to the transverse through groove, the lock catch hole is arranged at the side wall in an outer barrel and is opposite to the other end of the locking bolt, and the eccentric wheel is arranged at the lower end of a lock plug and penetrates through the through hole and is positioned in the transverse through groove; when the anti-misoperation lock is performed, the other end of the lock tongue is inserted into the lock catch hole.
5. The secondary air-break anti-misoperation lockout device of claim 1, 2, 3 or 4, wherein the elastic buckle comprises: the lower end of the transition section is inclined inwards, the upper end of the transition section is connected with the lower end of the mounting section, and the inner end of the clamping pin is connected with the lower end of the transition section; the distance between the inner ends of the clamping feet of the two elastic buckles in the free state is smaller than the width of the supporting block.
6. The secondary air-break anti-misoperation lockout device of claim 1, 2, 3 or 4 wherein the upper end of the cylinder housing is provided with a flange, and the side wall of the flange is provided with a plurality of recesses communicated with the lower end of the flange.
7. The secondary air-open mis-locking prevention device as claimed in claim 1, 2, 3 or 4, wherein the lower ends of the two side ends of the supporting block are respectively provided with a guiding chamfer.
8. A secondary air-break anti-misoperation lockout method of a lockout device, the secondary air-break anti-misoperation lockout device is the secondary air-break anti-misoperation lockout device of any claim 1 to claim 7, and is characterized in that (1) when the air-break is disconnected, a lock cylinder is pressed downwards to enable a check ring to block a flange for limiting, a lock cylinder shell drives a lockout seat, a connecting column and a supporting block to move downwards, the supporting block is supported between two elastic buckles, the outer ends of two clamping feet are correspondingly inserted into two clamping holes of a clamping hole group one by one, a key is inserted into a key hole to rotate a lock cylinder plug and an eccentric wheel and drive a lock tongue to move, the other end of the lock tongue is inserted into a blocking lock hole, and a clamping foot handle realizes anti-misoperation lockout; (2) when the communication is opened, the lock cylinder is pressed downwards to enable the retainer ring to block the flange for limiting, the lock cylinder shell drives the locking seat, the connecting column and the supporting block to move downwards, the supporting block is supported between the two elastic buckles, the outer ends of the two clamping pins are inserted into two clamping holes of the other clamping hole group in a one-to-one correspondence mode, a key is inserted into a key hole to rotate the lock cylinder plug and the eccentric wheel and drive the lock tongue to move, the other end of the lock tongue is inserted into the locking hole, and the clamping pins block the handle to realize anti-misoperation locking; (3) the anti-misoperation lock is released by inserting a key into a key hole to reversely rotate a lock cylinder plug and an eccentric wheel and drive a lock tongue to move, the other end of the lock tongue withdraws from a lock catch hole, a lock cylinder is pulled upwards, a lock cylinder shell drives a locking seat, a connecting column and a supporting block to move upwards, the lower end of a check ring blocks the upper end of an anti-rotation block to be limited, the supporting block withdraws from between two elastic buckles, the outer ends of two clamping pins correspondingly withdraw from two clamping holes of a clamping hole group one by one, the anti-misoperation lock is relieved, and the handle is pulled to perform idle-opening input or withdrawal operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110686499.6A CN113593987B (en) | 2021-06-21 | 2021-06-21 | Secondary air-break misoperation-preventive locking device and misoperation-preventive locking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110686499.6A CN113593987B (en) | 2021-06-21 | 2021-06-21 | Secondary air-break misoperation-preventive locking device and misoperation-preventive locking method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113593987A true CN113593987A (en) | 2021-11-02 |
| CN113593987B CN113593987B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110686499.6A Active CN113593987B (en) | 2021-06-21 | 2021-06-21 | Secondary air-break misoperation-preventive locking device and misoperation-preventive locking method |
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| CN (1) | CN113593987B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995027296A1 (en) * | 1994-03-30 | 1995-10-12 | Holec Holland N.V. | Drive arrangement for vacuum power circuit breakers, in particular in a tri-polar configuration |
| CN101556878A (en) * | 2009-05-25 | 2009-10-14 | 华仪电气股份有限公司 | Operation mechanism of high-voltage vacuum load switch-fuse combined electric apparatus |
| CN104240990A (en) * | 2013-06-17 | 2014-12-24 | 通贝国际有限公司 | Lockout Device For Switchgear |
| CN110459421A (en) * | 2019-08-26 | 2019-11-15 | 国网新疆电力有限公司阿勒泰供电公司 | Low pressure with misoperation-proof locking device is spaced apart switch |
| CN210443455U (en) * | 2019-11-12 | 2020-05-01 | 国网新疆电力有限公司博尔塔拉供电公司 | Secondary air-break anti-misoperation locking warning device |
| CN112309790A (en) * | 2020-11-09 | 2021-02-02 | 国网上海市电力公司 | Lock catch capable of preventing air switch from being mistakenly closed and having warning function |
-
2021
- 2021-06-21 CN CN202110686499.6A patent/CN113593987B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995027296A1 (en) * | 1994-03-30 | 1995-10-12 | Holec Holland N.V. | Drive arrangement for vacuum power circuit breakers, in particular in a tri-polar configuration |
| CN101556878A (en) * | 2009-05-25 | 2009-10-14 | 华仪电气股份有限公司 | Operation mechanism of high-voltage vacuum load switch-fuse combined electric apparatus |
| CN104240990A (en) * | 2013-06-17 | 2014-12-24 | 通贝国际有限公司 | Lockout Device For Switchgear |
| CN110459421A (en) * | 2019-08-26 | 2019-11-15 | 国网新疆电力有限公司阿勒泰供电公司 | Low pressure with misoperation-proof locking device is spaced apart switch |
| CN210443455U (en) * | 2019-11-12 | 2020-05-01 | 国网新疆电力有限公司博尔塔拉供电公司 | Secondary air-break anti-misoperation locking warning device |
| CN112309790A (en) * | 2020-11-09 | 2021-02-02 | 国网上海市电力公司 | Lock catch capable of preventing air switch from being mistakenly closed and having warning function |
Non-Patent Citations (1)
| Title |
|---|
| 张庆伟;: "一种继电保护装置二次空开防误闭锁装置", 江西电力职业技术学院学报, no. 01 * |
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| Publication number | Publication date |
|---|---|
| CN113593987B (en) | 2024-03-01 |
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