CN101587784A - A kind of mid-cabinet earthed switch and cabinet back door closed block - Google Patents
A kind of mid-cabinet earthed switch and cabinet back door closed block Download PDFInfo
- Publication number
- CN101587784A CN101587784A CNA2009100331588A CN200910033158A CN101587784A CN 101587784 A CN101587784 A CN 101587784A CN A2009100331588 A CNA2009100331588 A CN A2009100331588A CN 200910033158 A CN200910033158 A CN 200910033158A CN 101587784 A CN101587784 A CN 101587784A
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- China
- Prior art keywords
- cabinet
- earthed switch
- stop body
- operating axis
- back door
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Abstract
The invention discloses a kind of mid-cabinet earthed switch and cabinet back door closed block, it comprises the interlocking block, in the stop body (3) of interlocking block, be provided with groove (4), the operating axis of earthed switch (5) stretches in the groove (4), between operating axis (5) and stop body (3), be installed with connector, operating axis (5) is connected with stop body (3) by connector, stop body (3) can endwisely slip along operating axis (5), in groove (4), be provided with back-moving spring (2), back-moving spring (2) is positioned between the bottom of operating axis (5) and groove (4), appearance in stop body (3) is provided with convex shoulder (6), is provided with locking bolt (7) in the bottom of stop body (3).The utility model is not only simple in structure, and is easy for installation, and can prevent mistakenly entering charged chamber and prevent to be with earthed switch to close circuit breaker.
Description
Technical field
The present invention relates to a kind of mid-cabinet earthed switch and cabinet back door closed block.
Background technology
High voltage electric equipment must possess " five is anti-" functional requirement, simple and reliable earthed switch and cabinet back door interlocking device can effectively " prevent mistakenly entering charged chamber " and " preventing to be with earthed switch to close circuit breaker ", a large amount of uses along with mid-cabinet, " five the is anti-" blocking function at its earthed switch and cabinet back door also is gradually improved, but all has problems such as parts are many, installation is loaded down with trivial details, versatility difference.
Summary of the invention
The present invention relates to a kind of mid-cabinet earthed switch and cabinet back door closed block, it is not only simple in structure, and is easy for installation, and can prevent mistakenly entering charged chamber and prevent to be with earthed switch to close circuit breaker.
The present invention has adopted following technical scheme: a kind of mid-cabinet earthed switch and cabinet back door closed block, it comprises the interlocking block, in the stop body of interlocking block, be provided with groove, the operating axis of earthed switch stretches in the groove, between operating axis and stop body, be installed with connector, operating axis is connected with stop body by connector, stop body can endwisely slip along operating axis, in groove, be provided with back-moving spring, back-moving spring is between the bottom of operating axis and groove, appearance in stop body is provided with convex shoulder, is provided with locking bolt in the bottom of stop body.
Described connector is a connecting pin, and connecting pin is a radial peg.Described convex shoulder is the square convex shoulder, and the shape of square convex shoulder is corresponding with the square hole at switch cubicle rear portion.Described locking bolt is an oval shape locking bolt, and the lockhole position on oval shape locking bolt and the switch cubicle back door is corresponding.
The present invention has following beneficial effect: the present invention includes the interlocking block, on the interlocking block, be provided with the square convex shoulder, be provided with oval shape locking bolt in the interlocking stop bottom, when earthed switch closes a floodgate, oval shape locking bolt on the interlocking block is in vertical position, consistent with the hole site of locking, back door, the back door can be opened, the interlocking block is at the square convex shoulder on it under the effect of spring just in time in the square opening at cabinet, the earthed switch operating axis cannot rotate, earthed switch can't separating brake, and another closed block on the earthed switch operating axis stops circuit breaker cart to enter into the service position simultaneously, effectively prevents to be with earthed switch to close circuit breaker.When shutting the cabinet back door, the back door presses the interlocking block, square convex shoulder departs from the square opening of cabinet, the earthed switch operating axis can rotate, and earthed switch can be operated to the separating brake position, and the oval shape locking bolt on the interlocking block is horizontal, vertical with the hole site of locking, back door, the back door can't be opened, and this moment, circuit breaker cart can enter into the service position, had effectively realized the function of " preventing mistakenly entering charged chamber ".The present invention is not only simple in structure, and practicality is good.
Description of drawings
Fig. 1 is a structural representation of the present invention
Schematic diagram when Fig. 2 closes a floodgate for earthed switch
Schematic diagram when Fig. 3 is the earthed switch separating brake
Embodiment
At Fig. 1, among Fig. 2 and Fig. 3, the present invention is a kind of mid-cabinet earthed switch and cabinet back door closed block, it comprises the interlocking block, in the stop body 3 of interlocking block, be provided with groove 4, the operating axis 5 of earthed switch stretches in the groove 4, between operating axis 5 and stop body 3, be installed with connector, connector is a connecting pin 1, connecting pin 1 is a radial peg, and operating axis 5 is connected with stop body 3 by connecting pin 1, and stop body 3 can endwisely slip along operating axis 5, in groove 4, be provided with back-moving spring 2, back-moving spring 2 is provided with convex shoulder 6 in the appearance of stop body 3 between the bottom of operating axis 5 and groove 4, be provided with locking bolt 7 in the bottom of stop body 3, convex shoulder 6 is the square convex shoulder, the shape of square convex shoulder is corresponding with the square hole at switch cubicle rear portion, and locking bolt is 7 oval shape locking bolts, and the lockhole position on oval shape locking bolt and the switch cubicle back door is corresponding.The process of the maintenance sub-switching operation of intermediate switchgear cabinet is: work as breaker open operation, circuit breaker cart moves to the isolated location, when earthed switch closes a floodgate, oval shape locking bolt on the interlocking block is in vertical position, position consistency with lockhole on the back door, the back door can be opened like this, the interlocking block makes square convex shoulder just in time in the square opening at cabinet under the effect of back-moving spring 2, the operating axis 5 of earthed switch cannot rotate, earthed switch can't separating brake, another closed block on the operating axis 5 of earthed switch stops circuit breaker cart to enter into the service position simultaneously, has effectively realized the function of " preventing to close circuit breaker with earthed switch ".Send the operating process of electricity to be after the maintenance: when shutting the cabinet back door, the back door presses the interlocking block, square convex shoulder on it departs from the square opening of cabinet, the operating axis 5 of earthed switch can rotate, earthed switch can be operated to the separating brake position, to connect circuit breaker cart will be moved to the service position, the ground switch is in the separating brake position, oval shape locking bolt on the interlocking block is horizontal, vertical with the hole site of locking, back door, the back door can't be opened, and this moment, circuit breaker cart can enter into the service position, had effectively realized the function of " preventing mistakenly entering charged chamber ".
Claims (4)
1, a kind of mid-cabinet earthed switch and cabinet back door closed block, it is characterized in that it comprises the interlocking block, in the stop body (3) of interlocking block, be provided with groove (4), the operating axis of earthed switch (5) stretches in the groove (4), between operating axis (5) and stop body (3), be installed with connector, operating axis (5) is connected with stop body (3) by connector, stop body (3) can endwisely slip along operating axis (5), in groove (4), be provided with back-moving spring (2), back-moving spring (2) is positioned between the bottom of operating axis (5) and groove (4), appearance in stop body (3) is provided with convex shoulder (6), is provided with locking bolt (7) in the bottom of stop body (3).
2, mid-cabinet earthed switch according to claim 1 and cabinet back door closed block is characterized in that described connector is connecting pin (1), and connecting pin (1) is a radial peg.
3, mid-cabinet earthed switch according to claim 1 and cabinet back door closed block is characterized in that described convex shoulder (6) is the square convex shoulder, and the shape of square convex shoulder is corresponding with the square hole at switch cubicle rear portion.
4, mid-cabinet earthed switch according to claim 1 and cabinet back door closed block is characterized in that described locking bolt is (7) oval shape locking bolt, and the lockhole position on oval shape locking bolt and the switch cubicle back door is corresponding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100331588A CN101587784A (en) | 2009-06-15 | 2009-06-15 | A kind of mid-cabinet earthed switch and cabinet back door closed block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100331588A CN101587784A (en) | 2009-06-15 | 2009-06-15 | A kind of mid-cabinet earthed switch and cabinet back door closed block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101587784A true CN101587784A (en) | 2009-11-25 |
Family
ID=41371969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100331588A Pending CN101587784A (en) | 2009-06-15 | 2009-06-15 | A kind of mid-cabinet earthed switch and cabinet back door closed block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101587784A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982865A (en) * | 2010-11-02 | 2011-03-02 | 山东鲁亿通电气设备有限公司 | Interlocking device of earthed switch operating mechanism |
| CN107275972A (en) * | 2017-07-04 | 2017-10-20 | 广东电网有限责任公司东莞供电局 | Grounding device of drawer type switch cabinet |
-
2009
- 2009-06-15 CN CNA2009100331588A patent/CN101587784A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101982865A (en) * | 2010-11-02 | 2011-03-02 | 山东鲁亿通电气设备有限公司 | Interlocking device of earthed switch operating mechanism |
| CN107275972A (en) * | 2017-07-04 | 2017-10-20 | 广东电网有限责任公司东莞供电局 | Grounding device of drawer type switch cabinet |
| CN107275972B (en) * | 2017-07-04 | 2023-08-01 | 广东电网有限责任公司东莞供电局 | Drawer type switch cabinet grounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091125 |