CN101882759A - Back door interlocking device of high-tension switch cabinet - Google Patents
Back door interlocking device of high-tension switch cabinet Download PDFInfo
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- CN101882759A CN101882759A CN2009100508639A CN200910050863A CN101882759A CN 101882759 A CN101882759 A CN 101882759A CN 2009100508639 A CN2009100508639 A CN 2009100508639A CN 200910050863 A CN200910050863 A CN 200910050863A CN 101882759 A CN101882759 A CN 101882759A
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- back door
- interlock
- interlocking
- housing
- earthing switch
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Abstract
A novel and convenient back door interlocking device of a high-tension switch cabinet realizes the function of interlocking by using an interlock and a spring and combining with an earthing switch rotating shaft of the switch cabinet, a housing and an interlock hole in a back door. When the interlocking device is in use, the spring is placed in a square hole at one end of the interlock, the earthing switch rotating shaft is inserted, and the other end of the interlock is placed into an interlocking square hole of the switch cabinet housing. After the back door is closed, the back door pushes the interlock to avoid the interlocking square hole of the housing, and the earthing switch operates normally. When the earthing switch is switched off, the interlock deflects 90 DEG accordingly, and the long waist-shaped end part of the interlock rotates to form a right angle with an interlock rectangular hole of the back door to lock the back door. When the earthing switch is closed, the long waist-shaped end part of the interlock rotates to be in the same direction with the interlock rectangular hole of the back door, and the back door can be opened and closed then. When the back door is opened, the interlock resets under the action of the spring, and one segment of the middle part of the interlock resets into the interlock square hole of the housing; at the moment, the rotation of the interlock is blocked, and the earthing switch can not work. The interlocking device can ensure that the earthing switch is switched on before the back door is opened, the earthing switch can not operate after the back door is opened, and the back door is closed before the earthing switch operates. When the back door of the switch cabinet is opened, the earthing switch is switched on and the operation is locked, which prevents high-tension components in a cable chamber from electrifying when the back door is opened.
Description
Affiliated technical field
The present invention is a kind of novel easy back door interlocking device of high-tension switch cabinet, and particularly it can prevent that the charged situation of cable vault's high voltage component from appearring in high-tension switch cabinet when opening at the back door, to eliminate the accident potential that the generation personnel get an electric shock accidentally.
Background technology
The back door interlock of high-tension switch cabinet is at present: when earthed switch is in gate-dividing state, just can the close circuit breaker and the back door of not opening, touch switch cubicle cable vault live part to prevent personnel.But, when being in "on" position, opens again under the situation at back door by earthed switch, and still can the actuating earthed switch.If the actuating earthed switch separating brake and the circuit breaker that closes will make switch cubicle cable vault high voltage component charged, the security incident hidden danger that this just exists personnel to get an electric shock accidentally this moment.Therefore, high-tension switch cabinet needs the more perfect simple and reliable again back door interlocking device of design function.
Summary of the invention
The back door occurs and open and the charged defective in cable vault in order to overcome high-tension switch cabinet, the present invention has designed a kind of novel easy back door interlocking device of high-tension switch cabinet, and its function of safety protection is: open before the back door must earlier earthed switch be closed a floodgate, the back door must closing back door before opening the back earthed switch and can not carrying out actuating, earthed switch actuating.Earthed switch must be in "on" position and its actuating is locked when guaranteeing thus that the back door is opened, and also just makes the cable vault open Shi Buhui at the back door and high-tension electricity occurs.
The technical solution used in the present invention is: interlock is with a locking part and a spring, realizes interlock with the interlocking hole combination at earthed switch rotating shaft, housing and the back door of switch cubicle itself.Only part need be put into correspondence position successively and do not needed fastening during assembling.One end of locking part is just as square tube, its square hole size is a bit larger tham earthed switch rotating shaft squared ends, the earthed switch roller end is inserted in the locking part square hole, a spring is arranged between the two, locking part axially can be relative movable with the turning to interlock of earthed switch rotating shaft.The other end of locking part is a long waist shaped, its overall dimension is slightly smaller than interlocking oblong aperture (or the long waist shaped hole at switch cubicle back door, down together), when it forwards to the interlocking oblong aperture at back door when equidirectional, the back door can opening and closing, and when it forwarded interlocking oblong aperture with the back door to and meets at right angles direction, the back door can not opening and closing.The one section overall dimension in the middle part of locking part is slightly smaller than the interlocking square hole of switch cubicle housing, when this section extend in the interlocking square hole of housing, the rotation of locking part is subjected to it and stops, and when this section avoided the interlocking square hole of housing, locking part just rotated and or not stopped by it.Middle part another section overall dimension of locking part makes and gets back to the tram when locking part resets greater than the interlocking square hole of switch cubicle housing.Course of action of the present invention is: during closing back door, the back door promotes locking part, and the interlocking square hole on the housing is avoided at its middle part, and earthed switch just can carry out normal actuating; During the earthed switch separating brake, locking part 90 ° of deflections thereupon, its long waist shaped end forwards interlocking oblong aperture with the back door to and meets at right angles and pin the back door; When earthed switch closed a floodgate, locking part long waist shaped end forwarded to consistent with the interlocking oblong aperture direction at back door thereupon, and can open or close the back door this moment; When opening the back door, locking part is resetted by the spring force effect, and one section at its middle part is got back in the interlocking square hole of housing, and earthed switch also just can not carry out actuating.
The invention has the beneficial effects as follows, technical scheme novelty, easy, realize perfect in shape and function, reliable, high voltage component charged situation in cable vault's in the time of preventing that high-tension switch cabinet from appearing at the back door and open has also just been eliminated the accident potential of the careless false touch of personnel cable vault high-tension electricity.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is structural design of the present invention and installation diagram.
1. earthed switch rotating shafts among the figure, 2. locking part, 3. spring, 4. switch cubicle housing, 5. back door, 6. housing interlocking square hole, 7. back gate interlock oblong aperture.
Fig. 2 is the relative position elevational schematic view of housing interlocking square hole (6), back gate interlock oblong aperture (7) and locking part (2) among Fig. 1.
Fig. 3 is locking part (2) upward view among Fig. 1.
Fig. 4 is locking part (2) cutaway view among Fig. 1.
Fig. 5 is locking part (2) vertical view among Fig. 1.
Embodiment
In Fig. 1, put into spring (3) in the square hole of locking part (2) one ends, the squared ends of earthed switch rotating shaft (1) is inserted, and the other end of locking part (2) is placed on interior the getting final product of interlocking square hole (6) of switch cubicle housing (4) again.During closing back door (5), back door (5) advance the interlocking square hole (6) of locking part (2) avoiding switching cabinet housing (4), break away from interlocking square hole (6) and stop that to what locking part (2) rotated earthed switch (1) just can carry out normal actuating; When earthed switch (1) separating brake, locking part (2) 90 ° of deflections thereupon, its long waist shaped end forwards to and meets at right angles with back door (5) interlocking oblong aperture (7) and pin back door (5); When earthed switch (1) closed a floodgate, locking part (2) long waist shaped end forwarded to consistent with interlocking oblong aperture (7) direction of back door (5) thereupon, and back door this moment (5) can open and close; When opening back door (5), locking part (2) is resetted by the elastic force effect of spring (3), and one section at its middle part resets in the interlocking square hole (6) of housing (4), and the rotation of locking part this moment (2) is stopped that earthed switch (1) also just can not carry out actuating.
Claims (2)
1. back door interlocking device of high-tension switch cabinet, form by locking part, spring and earthed switch rotating shaft, housing interlocking hole, gate interlock hole, back, it is characterized in that: switch cubicle housing interlocking square hole, back door interlocking oblong aperture or long waist shaped hole, one end of locking part has square hole, and the other end of locking part is a long waist shaped, the middle part of locking part be two sections square, wherein one section overall dimension is slightly smaller than the interlocking square hole of housing, and another section overall dimension is greater than the interlocking square hole of housing.
2. back door interlocking device of high-tension switch cabinet according to claim 1 is characterized in that: earthed switch rotating shaft, spring, locking part, housing interlocking square hole sequential combination only need correspondence placement successively and do not need fastening between them.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910050863 CN101882759B (en) | 2009-05-08 | 2009-05-08 | Back door interlocking device of high-tension switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910050863 CN101882759B (en) | 2009-05-08 | 2009-05-08 | Back door interlocking device of high-tension switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101882759A true CN101882759A (en) | 2010-11-10 |
| CN101882759B CN101882759B (en) | 2013-01-02 |
Family
ID=43054692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910050863 Active CN101882759B (en) | 2009-05-08 | 2009-05-08 | Back door interlocking device of high-tension switch cabinet |
Country Status (1)
| Country | Link |
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| CN (1) | CN101882759B (en) |
Cited By (4)
| 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 |
| CN102436948A (en) * | 2011-10-08 | 2012-05-02 | 江苏天港箱柜有限公司 | Operation shaft and back door interlocking structure in electric cabinet |
| CN104201035A (en) * | 2014-09-26 | 2014-12-10 | 国家电网公司 | Switching-on assist device for grounding knife-switch |
| CN112184975A (en) * | 2020-09-27 | 2021-01-05 | 江苏思源赫兹互感器有限公司 | High-voltage laboratory safety grounding and entrance guard interlocking control system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2736902Y (en) * | 2004-06-11 | 2005-10-26 | 安徽鑫龙电器股份有限公司 | Armour moving type closed AC switch cabinet |
| CN2840303Y (en) * | 2005-11-16 | 2006-11-22 | 河南森源电气股份有限公司 | Link operating mechanism between central switch cabinet rear door and grounding switch |
| CN200969486Y (en) * | 2006-10-30 | 2007-10-31 | 丽水万控电气有限公司 | Interlocking apparatus for high-voltage switch ground cabinet and backdoor |
| CN201398028Y (en) * | 2009-05-08 | 2010-02-03 | 上海纳杰电气成套有限公司 | Safety protection mechanism for medium cupboard |
-
2009
- 2009-05-08 CN CN 200910050863 patent/CN101882759B/en active Active
Cited By (5)
| 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 |
| CN102436948A (en) * | 2011-10-08 | 2012-05-02 | 江苏天港箱柜有限公司 | Operation shaft and back door interlocking structure in electric cabinet |
| CN102436948B (en) * | 2011-10-08 | 2014-01-29 | 江苏天港箱柜有限公司 | Operation shaft and back door interlocking structure in electric cabinet |
| CN104201035A (en) * | 2014-09-26 | 2014-12-10 | 国家电网公司 | Switching-on assist device for grounding knife-switch |
| CN112184975A (en) * | 2020-09-27 | 2021-01-05 | 江苏思源赫兹互感器有限公司 | High-voltage laboratory safety grounding and entrance guard interlocking control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101882759B (en) | 2013-01-02 |
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