CN201838486U - Interlocking device capable of preventing mistaken entering into electrical intervals - Google Patents
Interlocking device capable of preventing mistaken entering into electrical intervals Download PDFInfo
- Publication number
- CN201838486U CN201838486U CN2010205115282U CN201020511528U CN201838486U CN 201838486 U CN201838486 U CN 201838486U CN 2010205115282 U CN2010205115282 U CN 2010205115282U CN 201020511528 U CN201020511528 U CN 201020511528U CN 201838486 U CN201838486 U CN 201838486U
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- China
- Prior art keywords
- rotating shaft
- cabinet
- control rotating
- cabinet door
- bar section
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- 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 - Fee Related
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- 125000006850 spacer group Chemical group 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000005283 ground state Effects 0.000 description 2
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Abstract
The utility model relates to an interlocking device capable of preventing mistaken entering into electrical intervals, comprising a lock rod that is movably connected on a cabinet body, a lock sheet that is coaxially and fixedly connected on a grounding control rotating shaft, and an opening-stop baffle that is fixedly connected inside a cabinet door, wherein when the cabinet door is closed, the lock sheet is positioned between the cabinet door and the opening-stop baffle; the lock rod is parallel to the grounding control rotating shaft and is formed by coaxial connection of a thin rod section and a thick rod section; the lock sheet is provided with a lock slot used for the lock rod to penetrate through, and the lock slot consists of an arc-shaped slot and a limiting slot; when the grounding control rotating shaft is tripped, the lock sheet is buckled outside the opening-stop baffle and the arc-shaped slot is plugged with the lock rod in a matching manner; when the grounding control rotating shaft is switched on, the lock sheet is separated from the opening-stop baffle and the limiting slot is connected with the lock rod in a matching manner; the thin rod section of the lock rod is arranged at the side near to the cabinet door, and an elastic connecting part is connected between the lock rod and the cabinet body. The interlocking device can prevent personnel from entering a grounding chamber for maintenance when a high-tension switch cabinet is electrified, and can ensure that a grounding switch is in a switching-in grounded state stably when the high-tension switch cabinet is powered off for maintenance.
Description
Technical field
The utility model 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 utility model 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 solutions of the utility model are 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.
The utility model operation principle 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, advantage of the present utility model is: 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 utility model embodiment, 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 utility model embodiment, 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 utility model embodiment.
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 the utility model content is elaborated:
As Fig. 1-Figure 6 shows that the utility model 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 |
|---|---|---|---|
| CN2010205115282U CN201838486U (en) | 2010-08-31 | 2010-08-31 | Interlocking device capable of preventing mistaken entering into electrical intervals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205115282U CN201838486U (en) | 2010-08-31 | 2010-08-31 | Interlocking device capable of preventing mistaken entering into electrical intervals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201838486U true CN201838486U (en) | 2011-05-18 |
Family
ID=44008589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205115282U Expired - Fee Related CN201838486U (en) | 2010-08-31 | 2010-08-31 | Interlocking device capable of preventing mistaken entering into electrical intervals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201838486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930857A (en) * | 2010-08-31 | 2010-12-29 | 福州天宇电气股份有限公司 | Interlocking device for preventing mistakenly entering into charged intervals |
| CN102903562A (en) * | 2012-10-12 | 2013-01-30 | 川开电气股份有限公司 | Lower door interlocking mechanism for central-positioned type switch equipment |
-
2010
- 2010-08-31 CN CN2010205115282U patent/CN201838486U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101930857A (en) * | 2010-08-31 | 2010-12-29 | 福州天宇电气股份有限公司 | Interlocking device for preventing mistakenly entering into charged intervals |
| CN101930857B (en) * | 2010-08-31 | 2015-05-20 | 福州天宇电气股份有限公司 | Interlocking device for preventing mistakenly entering into charged intervals |
| CN102903562A (en) * | 2012-10-12 | 2013-01-30 | 川开电气股份有限公司 | Lower door interlocking mechanism for central-positioned type switch equipment |
| CN102903562B (en) * | 2012-10-12 | 2014-09-03 | 川开电气股份有限公司 | Lower door interlocking mechanism for central-positioned type switch equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: TIANYU ELECTRIC APPLIANCES CO., LTD., FUZHOU Effective date: 20131031 Owner name: TIANYU ELECTRIC APPLIANCES CO., LTD., FUZHOU Effective date: 20131031 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 350000 FUZHOU, FUJIAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131031 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Fuzhou Tianyu Electric Co., Ltd. Address before: Nanping East Road, Jinan District, Fuzhou city of Fujian Province, No. 130 350000 Patentee before: Fuzhou Tianyu Electric Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20150831 |
|
| EXPY | Termination of patent right or utility model |