CN101930857A - Interlocking device for preventing mistakenly entering into charged intervals - Google Patents
Interlocking device for preventing mistakenly entering into charged intervals Download PDFInfo
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- CN101930857A CN101930857A CN2010102680853A CN201010268085A CN101930857A CN 101930857 A CN101930857 A CN 101930857A CN 2010102680853 A CN2010102680853 A CN 2010102680853A CN 201010268085 A CN201010268085 A CN 201010268085A CN 101930857 A CN101930857 A CN 101930857A
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- rotating shaft
- cabinet
- control rotating
- cabinet door
- bar section
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Abstract
The invention relates to an interlocking device for preventing mistakenly entering into charged intervals, comprising a lock rod movably connected on a cabinet body, a locking plate coaxially and fixedly connected on a ground control rotating shaft and an opening stopping baffle fixedly connected at the inner side of a cabinet door, wherein when the cabinet door is closed, the locking plate is positioned between the cabinet door and the opening stopping baffle; the lock rod is parallel with the ground control rotating shaft and is formed by coaxial connection of a slender rod section and a thick rod section; a lock groove for the lock rod to pass is arranged on the locking plate and is formed by an arc groove and a limit groove; when the ground control rotating shaft is switched off, the locking plate is buckled outside the opening stopping baffle and the arc groove and the lock rod are spliced in a mating manner; when the ground control rotating shaft is switched on, the locking plate is separated from the opening stopping baffle and the limit groove and the lock rod are connected in a mating manner; the slender rod section of the lock rod is close to the side of the cabinet door; and an elastic connecting piece is connected between the lock rod and the cabinet body. The interlocking device can prevent the personnel from entering the grounding chamber for maintenance when the high-voltage switch cabinet is charged and can ensure the grounding switch to be in switching-on ground state stably when the high-voltage switch cabinet is subjected to power failure for maintenance.
Description
Technical field
The present invention relates to a kind of interlock that prevents mistakenly entering charged chamber.
Background technology
The cabinet door that the high-tension switch cabinet earthing chamber comprises cabinet, be connected with cabinet (the cabinet door here mainly refers to be used for keeping in repair and seals up a door after detecting usefulness openable), be located at earthed switch in the cabinet and the ground connection control rotating shaft that is used for controlling the work of earthed switch on/off switch.In order at utmost to guarantee staff's safety, the high-tension switch cabinet earthing chamber requires to have to prevent the misoperation interlock reliably that wherein one is exactly to prevent personnel's mistakenly entering into charged space.So must require to accomplish following some: 1. when the ground connection control rotating shaft is in gate-dividing state (circuit breaker may be in "on" position and make the cabinet charged) at this moment, the cabinet door can not be opened, has only when the ground connection control rotating shaft is in "on" position (this moment earthed switch ground connection, circuit breaker is in gate-dividing state, cabinet is not charged), the cabinet door just can be opened, and the maintenance personal just can enter the high-tension switch cabinet earthing chamber and keep in repair.2. when the cabinet door is opened, the ground connection control rotating shaft must stably be in "on" position, have only when the cabinet door is closed, the ground connection control rotating shaft could transfer gate-dividing state to from "on" position, can prevent that like this other staff from closing a floodgate and make cabinet charged circuit breaker under the situation of ignorant or carelessness, thereby avoiding jeopardizing enters the life and health that the high-tension switch cabinet earthing chamber carries out the personnel of maintenance work.
Not having as yet at present preferably that interlocking device can realize above-mentioned requirements, mainly all is that degree of danger is high by staff's Artificial Control.
Summary of the invention
In order to solve existing in prior technology the problems referred to above, the invention provides a kind of interlock that prevents mistakenly entering charged chamber, it can prevent reliably not only that the staff from having at high-tension switch cabinet under the situation of electricity and enter the high-tension switch cabinet earthing chamber and safeguard, and when the high-tension switch cabinet power failure is safeguarded, the earthed switch that can guarantee high-tension switch cabinet stably is in the combined floodgate ground state, thereby at utmost guarantees staff's safety.
Technical solution of the present invention is to constitute like this: a kind of interlock that prevents mistakenly entering charged chamber, it is characterized in that: it comprises locking bar on the cabinet that is movably connected on the high-tension switch cabinet earthing chamber, be fixedly connected on the ground connection control rotating shaft of high-tension switch cabinet earthing chamber and with the locking plate of ground connection control rotating shaft coaxial rotation and the opening-blocking baffle that is fixedly connected on the cabinet door inboard of high-tension switch cabinet earthing chamber, when the cabinet door was closed, the position of locking plate was between cabinet door and opening-blocking baffle; Described locking bar parallels with the ground connection control rotating shaft and by thin bar section with wide bar section is coaxial is formed by connecting; Offer the locked groove that is used for placing locking bar on the described locking plate, locked groove is by allowing thin bar section pass and solderless wrapped connection ground control rotating shaft is rotated and the impenetrable deep-slotted chip breaker of wide bar section and the stopper slot that can allow wide bar section pass connect to form; When the ground connection control rotating shaft was in gate-dividing state, locking plate was positioned to buckle in the opening-blocking baffle outside and deep-slotted chip breaker and cooperates the service position of pegging graft with locking bar; When the ground connection control rotating shaft was in "on" position, locking plate was positioned at and separates with opening-blocking baffle and service position that stopper slot and locking bar are connected; The thin bar section of described locking bar is near cabinet door place side, be connected with between locking bar and the cabinet and be used for being positioned at when cooperating the service position of pegging graft and cabinet door to be opened with locking bar at stopper slot, driving locking bar moves and makes wide bar section enter the Flexible Connector of stopper slot to cabinet door place side direction, and when the cabinet door is closed, locking bar can be subjected to the roof pressure of cabinet door and make wide bar section withdraw from stopper slot, thin bar section enters stopper slot.
Operation principle of the present invention is described as follows:
(1) when the ground connection control rotating shaft is in gate-dividing state (this moment circuit breaker may be in "on" position and make the cabinet charged), locking plate is positioned to buckle in the opening-blocking baffle outside and deep-slotted chip breaker and cooperates the service position (as depicted in figs. 1 and 2) of pegging graft with locking bar, can prevent that opening-blocking baffle from outwards moving by locking plate on the one hand, thereby avoid the staff under the charged situation of cabinet possibility, to open the cabinet door, enter cabinet; On the other hand since this moment deep-slotted chip breaker be in the service position that cooperates grafting with locking bar, and deep-slotted chip breaker can allow thin bar section pass and solderless wrapped connection ground control rotating shaft is rotated and wide bar section can not pass, therefore locking plate is in free state, and the ground connection control rotating shaft can transfer "on" position to from gate-dividing state.
(2) (this moment earthed switch ground connection when the ground connection control rotating shaft just transfers "on" position to by gate-dividing state, circuit breaker is in gate-dividing state, cabinet is not charged), locking plate is positioned at and separates with opening-blocking baffle and service position that stopper slot and locking bar are connected, opening-blocking baffle loses and stops and can outwards move on the one hand, the cabinet door can be opened, and the staff can enter the high-tension switch cabinet earthing chamber and keep in repair testing; On the other hand, because this moment, stopper slot was positioned at the service position (as shown in Figure 3 and Figure 4) that cooperates grafting with locking bar, therefore when the cabinet door is opened, Flexible Connector can drive locking bar and move and make wide bar section enter (as shown in Figure 5 and Figure 6) in the stopper slot to cabinet door place side direction, at this moment, locking plate is subjected to the restriction of locking bar, locking bar can not relatively move to the deep-slotted chip breaker direction, therefore, the ground connection control rotating shaft stably is in "on" position, can not transfer gate-dividing state to, like this, just can have a power failure when safeguarding, prevent that other staff from closing a floodgate to on-load switch and make cabinet charged under the situation of ignorant or carelessness, thereby avoiding jeopardizing enters the life and health that the high-tension switch cabinet earthing chamber carries out the personnel of maintenance work at high-tension switch cabinet.
(3) have only the maintenance of working as testing to finish, when the cabinet door can be closed, by closing the cabinet door, make locking bar under the roof pressure of cabinet door and after making wide bar section withdraw from stopper slot, thin bar section to enter stopper slot, just can make locking plate return to free state, be the ground connection control rotating shaft state that affranchises, at this moment, the ground connection control rotating shaft can transfer gate-dividing state to from "on" position.
Compared to prior art, the invention has the advantages that: can prevent reliably not only that the staff from having at high-tension switch cabinet under the situation of electricity enters the high-tension switch cabinet earthing chamber and safeguards, and when the high-tension switch cabinet power failure is safeguarded, the earthed switch that can guarantee high-tension switch cabinet stably is in the combined floodgate ground state, thereby at utmost guarantees staff's safety.
Description of drawings
Fig. 1 is user mode one schematic diagram of the embodiment of the invention, and the ground connection control rotating shaft is in gate-dividing state among the figure, and the cabinet door is in the state of closing and can't open.
Fig. 2 is an A-A profile among Fig. 1.
Fig. 3 is user mode two schematic diagrames of the embodiment of the invention, and the ground connection control rotating shaft is in "on" position among the figure, and the cabinet door is in the state that can open but not open as yet.
Fig. 4 is a B-B profile among Fig. 3.
Fig. 5 is user mode three schematic diagrames of the embodiment of the invention.
Fig. 6 is a C-C profile among Fig. 5, and the ground connection control rotating shaft is in "on" position among the figure, and the cabinet door is in open mode, omits cabinet door and opening-blocking baffle among the figure.
Number in the figure explanation: 1 cabinet, 2 locking bars, 2-1 thin bar section, 2-2 wide bar section, 3 ground connection control rotating shaft, 4 locking plates, 5 cabinet doors, 6 opening-blocking baffles, 7 locked grooves, 7-1 deep-slotted chip breaker, 7-2 stopper slot, 8 Flexible Connectors, 9 spacer pins.
Embodiment
Below in conjunction with Figure of description and embodiment content of the present invention is elaborated:
As Fig. 1-Figure 6 shows that the present invention prevents the interlock of mistakenly entering charged chamber, a kind of interlock that prevents mistakenly entering charged chamber, it is characterized in that: it comprises the locking bar 2 on the cabinet 1 that is movably connected on the high-tension switch cabinet earthing chamber, be fixedly connected on the ground connection control rotating shaft 3 of high-tension switch cabinet earthing chamber and be vertically connected at the periphery wall of ground connection control rotating shaft 3 with the locking plate 4(locking plate 4 of ground connection control rotating shaft 3 coaxial rotation) and the opening-blocking baffle 6 that is fixedly connected on cabinet door 5 inboards of high-tension switch cabinet earthing chamber, when cabinet door 5 was closed, the position of locking plate 4 was between cabinet door 5 and opening-blocking baffle 6; Described locking bar 2 parallels with ground connection control rotating shaft 3 and by thin bar section 2-1 with wide bar section 2-2 is coaxial is formed by connecting; Offer the locked groove 7 that is used for placing locking bar 2 on the described locking plate 4, locked groove 7 is by allowing thin bar section 2-1 pass and solderless wrapped connection ground control rotating shaft 3 is rotated and the impenetrable deep-slotted chip breaker 7-1 of wide bar section 2-2 and the stopper slot 7-2 that can allow wide bar section 2-2 pass connect to form; When ground connection control rotating shaft 3 was in gate-dividing state, locking plate 4 was positioned at and buckles in opening-blocking baffle 6 outsides and deep-slotted chip breaker 7-1 cooperates the service position of pegging graft with locking bar 2; When ground connection control rotating shaft 3 was in "on" position, locking plate 4 was positioned at and separates with opening-blocking baffle 6 and service position that stopper slot 7-2 and locking bar 2 are connected; The thin bar section 2-1 of described locking bar 2 is near cabinet door 5 place sides, be connected with between locking bar 2 and the cabinet 1 and be used for being positioned at when cooperating the service position of pegging graft and cabinet door 5 to be opened with locking bar 2 at stopper slot 7-2, driving locking bar 2 moves and the Flexible Connector 8(that makes wide bar section 2-2 enter stopper slot 7-2 as shown is spring to cabinet door 5 place side directions), and when cabinet door 5 is closed, locking bar 2 can be subjected to the roof pressure of cabinet door 5 and make wide bar section 2-2 withdraw from stopper slot 7-2, thin bar section 2-1 enters stopper slot 7-2.
Described locking plate 4 is a fanning strip, also be provided with on the described cabinet 1 be used for cooperating with two fan-shaped ends of locking plate 4 with limit ground connection control rotating shaft 3 close a floodgate and gate-dividing state between the spacer pin 9 of anglec of rotation during conversion.
Described wide bar section 2-2 and thin bar section 2-1 are cylindrical bar, be connected by the tapering transition section between wide bar section 2-2 and the thin bar section 2-1, described stopper slot 7-2 is the circular hole of aperture greater than wide bar section 2-2 external diameter, when ground connection control rotating shaft 3 was in "on" position, wide bar section 2-2 overlapped with the center of stopper slot 7-2.
Claims (3)
1. interlock that prevents mistakenly entering charged chamber, it is characterized in that: the ground connection control rotating shaft (3) that it comprises locking bar (2) on the cabinet (1) that is movably connected on the high-tension switch cabinet earthing chamber, be fixedly connected on the high-tension switch cabinet earthing chamber go up and with the locking plate (4) of ground connection control rotating shaft (3) coaxial rotation and the inboard opening-blocking baffle (6) of cabinet door (5) that is fixedly connected on the high-tension switch cabinet earthing chamber, when cabinet door (5) when closing, the position of locking plate (4) is positioned between cabinet door (5) and the opening-blocking baffle (6); Described locking bar (2) parallels with ground connection control rotating shaft (3) and by thin bar section (2-1) and coaxial being formed by connecting of wide bar section (2-2); Offer the locked groove (7) that is used for placing locking bar (2) on the described locking plate (4), locked groove (7) is by allowing thin bar section (2-1) pass and solderless wrapped connection ground control rotating shaft (3) is rotated and the impenetrable deep-slotted chip breaker of wide bar section (2-2) (7-1) and the stopper slot (7-2) that can allow wide bar section (2-2) pass connect to form; When ground connection control rotating shaft (3) when being in gate-dividing state, locking plate (4) is positioned at and buckles in opening-blocking baffle (6) outside and deep-slotted chip breaker (7-1) cooperates the service position of grafting with locking bar (2); When ground connection control rotating shaft (3) when being in "on" position, locking plate (4) is positioned at and separates with opening-blocking baffle (6) and service position that stopper slot (7-2) and locking bar (2) are connected; The thin bar section (2-1) of described locking bar (2) is near cabinet door (5) place side, being connected with between locking bar (2) and the cabinet (1) to be used for being positioned at stopper slot (7-2) cooperates the service position of pegging graft and cabinet door (5) when being opened with locking bar (2), driving locking bar (2) moves and makes wide bar section (2-2) enter the Flexible Connector (8) of stopper slot (7-2) to cabinet door (5) place side direction, and when cabinet door (5) when being closed, locking bar (2) can be subjected to the roof pressure of cabinet door (5) and make wide bar section (2-2) withdraw from stopper slot (7-2), thin bar section (2-1) enters stopper slot (7-2).
2. the interlock that prevents mistakenly entering charged chamber according to claim 1, it is characterized in that: described locking plate (4) is a fanning strip, also be provided with on the described cabinet (1) be used for cooperating with two fan-shaped ends of locking plate (4) with limit ground connection control rotating shaft (3) close a floodgate and gate-dividing state between the spacer pin (9) of anglec of rotation during conversion.
3. the interlock that prevents mistakenly entering charged chamber according to claim 1, it is characterized in that: described wide bar section (2-2) and thin bar section (2-1) are cylindrical bar, be connected by the tapering transition section between wide bar section (2-2) and the thin bar section (2-1), described stopper slot (7-2) is the circular hole of aperture greater than wide bar section (2-2) external diameter, when ground connection control rotating shaft (3) when being in "on" position, wide bar section (2-2) overlaps with the center of stopper slot (7-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010268085.3A CN101930857B (en) | 2010-08-31 | 2010-08-31 | Interlocking device for preventing mistakenly entering into charged intervals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010268085.3A CN101930857B (en) | 2010-08-31 | 2010-08-31 | Interlocking device for preventing mistakenly entering into charged intervals |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101930857A true CN101930857A (en) | 2010-12-29 |
| CN101930857B CN101930857B (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010268085.3A Active CN101930857B (en) | 2010-08-31 | 2010-08-31 | Interlocking device for preventing mistakenly entering into charged intervals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101930857B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751119A (en) * | 2012-06-27 | 2012-10-24 | 平高集团有限公司 | Mechanical locking device for isolating or grounding mechanism of fully-enclosed composite apparatus |
| CN103956657A (en) * | 2014-04-10 | 2014-07-30 | 北京华电瑞通电力工程技术有限公司 | Interlocking plate preventing straying into charged interval and high-voltage switch gear |
| CN104409250A (en) * | 2014-11-18 | 2015-03-11 | 广东阿尔派电力科技股份有限公司 | Demarcation switch cabinet operating mechanism |
| CN106356751A (en) * | 2016-09-09 | 2017-01-25 | 国网山东省电力公司威海供电公司 | Retaining-plate crank arm lock for 10KV metal enclosed switch cabinet |
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| CN200947394Y (en) * | 2006-08-24 | 2007-09-12 | 上海天灵开关厂有限公司 | LMG-12/LCG-12 three-position SF loading switch position indicating and interlocking mechanism |
| CN201243169Y (en) * | 2008-08-15 | 2009-05-20 | 潘敏 | Interlocking device of drawer switch cabinet |
| CN201478698U (en) * | 2009-08-25 | 2010-05-19 | 温州新机电器有限公司 | Switch cabinet earthing switch operation interlocking device |
| CN201556840U (en) * | 2009-05-18 | 2010-08-18 | 宁波天安（集团）股份有限公司 | Interlocking operation device for high-voltage switch cabinet |
| CN201838486U (en) * | 2010-08-31 | 2011-05-18 | 福州天宇电气股份有限公司 | Interlocking device capable of preventing mistaken entering into electrical intervals |
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2010
- 2010-08-31 CN CN201010268085.3A patent/CN101930857B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200947394Y (en) * | 2006-08-24 | 2007-09-12 | 上海天灵开关厂有限公司 | LMG-12/LCG-12 three-position SF loading switch position indicating and interlocking mechanism |
| CN201243169Y (en) * | 2008-08-15 | 2009-05-20 | 潘敏 | Interlocking device of drawer switch cabinet |
| CN201556840U (en) * | 2009-05-18 | 2010-08-18 | 宁波天安（集团）股份有限公司 | Interlocking operation device for high-voltage switch cabinet |
| CN201478698U (en) * | 2009-08-25 | 2010-05-19 | 温州新机电器有限公司 | Switch cabinet earthing switch operation interlocking device |
| CN201838486U (en) * | 2010-08-31 | 2011-05-18 | 福州天宇电气股份有限公司 | Interlocking device capable of preventing mistaken entering into electrical intervals |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751119A (en) * | 2012-06-27 | 2012-10-24 | 平高集团有限公司 | Mechanical locking device for isolating or grounding mechanism of fully-enclosed composite apparatus |
| CN103956657A (en) * | 2014-04-10 | 2014-07-30 | 北京华电瑞通电力工程技术有限公司 | Interlocking plate preventing straying into charged interval and high-voltage switch gear |
| CN103956657B (en) * | 2014-04-10 | 2016-03-02 | 北京华电瑞通电力工程技术有限公司 | Prevent interlock plate and the high voltage switchgear of mistakenly entering charged chamber |
| CN104409250A (en) * | 2014-11-18 | 2015-03-11 | 广东阿尔派电力科技股份有限公司 | Demarcation switch cabinet operating mechanism |
| CN106356751A (en) * | 2016-09-09 | 2017-01-25 | 国网山东省电力公司威海供电公司 | Retaining-plate crank arm lock for 10KV metal enclosed switch cabinet |
| CN106356751B (en) * | 2016-09-09 | 2018-03-16 | 国网山东省电力公司威海供电公司 | A kind of 10KV metal-enclosed switchgears baffle plate connecting lever lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101930857B (en) | 2015-05-20 |
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