CN201196926Y - Interlocking apparatus of power distribution cabinet ground switch and breaker chamber cabinet door - Google Patents
Interlocking apparatus of power distribution cabinet ground switch and breaker chamber cabinet door Download PDFInfo
- Publication number
- CN201196926Y CN201196926Y CNU2008200336347U CN200820033634U CN201196926Y CN 201196926 Y CN201196926 Y CN 201196926Y CN U2008200336347 U CNU2008200336347 U CN U2008200336347U CN 200820033634 U CN200820033634 U CN 200820033634U CN 201196926 Y CN201196926 Y CN 201196926Y
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- power distribution
- plate
- cabinet
- distribution cabinet
- earthed switch
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Abstract
The utility model discloses an interlocking device for a grounding switch of an electric power distribution cabinet and a cabinet door of a breaker room, which comprises a cam, a positioning board, a middle door bolt and a locking device which are connected with an operating shaft of the grounding switch, wherein the positioning board is provided with a plurality of longitudinal grooves which are respectively matched with corresponding positioning bolts on a cabinet body, the lower end of the positioning board is pressed against the outer profile of the cam, and the upper end of the positioning board is fixed with one end of the middle door bolt; and the other end of the middle door bolt is matched with a locking screw stem. The interlocking device has the advantages of simple structure, convenient operation and low cost; in addition, the interlocking device improves the processing safety of the electric power distribution cabinet.
Description
Technical field
The utility model relates to a kind of interlock, particularly relates to the interlock of power distribution cabinet earthed switch and breaker chamber cabinet door.
Background technology
Power distribution cabinet can supply industrial and mining enterprises, and power plant and transformer station are as the control and the protection of electric installation, and the security performance of power distribution cabinet is even more important.Therefore, consider the electrical power distribution cabinet from security standpoint, the mid-cabinet of 10kv handcart particularly, earthed switch and breaker chamber cabinet door aspect should satisfy following operation: after earthed switch closes a floodgate, determined a high-voltage safety ground connection of power distribution cabinet, breaker chamber cabinet door just can be opened maintenance; Behind the earthed switch separating brake, when high-pressure section of power distribution cabinet does not have safety ground, the cabinet door of breaker chamber then can't be opened, both made operating personnel's misoperation cause the electric arc arcing this moment, also can be limited in the power distribution cabinet, and release energy, thereby can not threaten operating personnel's safety by the pressure release passage that is positioned at power distribution cabinet cabinet top; As run into special circumstances, and need open the cabinet door, require this moment the cabinet door under the situation of using certain instrument, can open the cabinet door again.
The power distribution cabinet fail safe is relatively poor in the prior art, generally is unworthy of standby host tool interlock, can't satisfy such requirement.Usually under the situation that earthed switch does not close a floodgate, the cabinet door of breaker chamber can be opened, at this moment, the cabinet goalkeeper who opens breaker chamber makes operating personnel directly in the face of high-tension electricity, causes personal injury easily, if this moment, operating breaker was improper, to cause the high pressure arcing, and cause personnel wounded or disabled even dead.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of fail safe, power distribution cabinet earthed switch simple in structure, easy to operate and with low cost and breaker chamber cabinet door interlock that improves the power distribution cabinet operation.
In order to solve the problems of the technologies described above, the interlock of power distribution cabinet earthed switch of the present utility model and breaker chamber cabinet door, comprise the cam, location-plate, middle door lock tongue and the locking device that are connected with the earthed switch operating axis, wherein, described location-plate is provided with some cannelures, described cannelure matches with bolt on being located at cabinet, the lower end abutment of described location-plate on the outline of described cam, an end of door lock tongue during the upper end of described location-plate is fixedly connected; The other end of door lock tongue matches with described locking device in described.
The interlock of above-mentioned power distribution cabinet earthed switch and breaker chamber cabinet door, wherein, described location-plate is L shaped for being inverted.
The interlock of above-mentioned power distribution cabinet earthed switch and breaker chamber cabinet door, wherein, described middle door lock tongue is L shaped, and the one end is fixedly connected on the upper end of location-plate, and the other end is provided with a hook-type, and described hook-type matches with described locking device.
The interlock of above-mentioned power distribution cabinet earthed switch and breaker chamber cabinet door, wherein, described locking device is a screw rod, this screw rod has the structure that can match with the spanner mouth, this screw rod is threaded with Zhong Men, form a gap between screw head and the middle door, the hook-type of described dead bolt connecting plate matches with described gap.
Adopt the power distribution cabinet earthed switch of said structure and the interlock of breaker chamber cabinet door, owing in power distribution cabinet, be provided with interlocking gear, after earthed switch closes a floodgate, determined a high-voltage safety ground connection of power distribution cabinet, breaker chamber cabinet door just can be opened maintenance, thereby improved the processing safety of power distribution cabinet, and the interlock of this structure is made of several simple parts, it is simple in structure, easy to operate, with low cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is the structural representation of the utility model cam
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
In order to solve the problems of the technologies described above, the interlock of the utility model power distribution cabinet earthed switch and breaker chamber cabinet door, comprise cam 1, location-plate 2, middle door lock tongue 3 and locking device 4, wherein, cam 1 is fixedlyed connected with earthed switch operating axis 6, locking device 4 is fixed on the middle door 7, location-plate 2 is provided with cannelure 21, location-plate 2 is connected on the cabinet 5 by bolt 22, described bolt 22 matches with cannelure 21, the lower end abutment of location-plate 2 is on the outline of described cam 1, fixedlys connected with an end of middle door lock tongue 3 in the upper end of location-plate 2; The other end of door lock tongue 3 matches with described locking device 4 in described, utilizes the variation of the radius size of cam 1 to drive moving up and down of location-plate 2; Described location-plate 2 can be the structural member of being inverted L shaped or other shapes, limit the distance that location-plate 2 moves up and down by the bolt 22 that is installed on the cabinet 5, the size of this displacement is determined by 1 radius change of the cam on the earthed switch operating axis, the divide-shut brake sign of earthed switch can be set in location-plate 2 cabinet door directions in addition, can be in the Zhong Men position the mechanical earthed switch opening and closing state of indicating; Door lock tongue 3 in described is the single piece of L shaped or other shapes, and the one end is fixedly mounted on the upper end of location-plate 2, the other end is a hook-type 23, described hook-type 23 matches with locking device 4, and its motion mode is by location-plate 2 decisions, along with location-plate 2 moves up and down.Described locking device 4 is a screw rod, one end of this screw rod has the structure that can match with the spanner mouth, this screw rod is threaded with Zhong Men, form a gap between screw head and the middle door, the hook-type 23 of door lock tongue 3 matches with described gap in described, rotate an end of this screw rod with open-end wrench, can be used for tightening or loosening locking device 4, the other end of screw rod is a screw thread, cooperate with the screwed hole on the cabinet door, lost efficacy and can't drive under the situation of cam 1 at earthed switch operating axis 6, and unscrewed and remove locking device 4 and just can open the cabinet door.
Operation principle of the present utility model: when earthed switch operating axis 6 clockwise rotates, the earthed switch separating brake, cam 1 is along with earthed switch operating axis 6 clockwise rotates, it is big that the radius of cam 1 becomes, driving location-plate 2 moves upward, door lock tongue 3 moved upward during location-plate 2 drove, and middle door lock tongue 3 other ends just engage with locking device 4, thereby with cabinet door lock calmly and can't open; When earthed switch operating axis 6 rotated counterclockwise, earthed switch closed a floodgate, and drove cam 1 and rotated counterclockwise, the radius of cam 1 diminishes, and drives location-plate 2 and moves downward, and door lock tongue 3 moved downwards during location-plate 2 drove, middle door lock tongue 3 other ends have just broken away from locking device 4, thereby the cabinet door just can be opened.
Adopt the power distribution cabinet earthed switch of said structure and the interlock of breaker chamber cabinet door, owing in power distribution cabinet, be provided with interlocking gear, after earthed switch closes a floodgate, determined a high-pressure section safety ground of power distribution cabinet, breaker chamber cabinet door just can be opened maintenance, thereby improved the processing safety of power distribution cabinet, and the interlock of this structure is made of several simple parts, it is simple in structure, easy to operate, with low cost.
The utility model is not limited to above-mentioned enforcement, and all employings are equal to replaces formed technical scheme, all drops in the protection range of the present utility model.
Claims (4)
1. the interlock of power distribution cabinet earthed switch and breaker chamber cabinet door, it is characterized in that, comprise the cam (1), location-plate (2), middle door lock tongue (3) and the locking device (4) that are connected with earthed switch operating axis (6), described location-plate (2) is provided with some cannelures (21), described cannelure (21) respectively be arranged on cabinet (5) and go up corresponding bolt (22) and match, the lower end abutment of described location-plate (2) on the outline of described cam (1), an end of door lock tongue (3) during the upper end of described location-plate (2) is fixedly connected; The other end of door lock tongue (3) matches with described locking device (4) in described.
2. the interlock of power distribution cabinet earthed switch and breaker chamber cabinet door according to claim 1 is characterized in that, described location-plate (2) is L shaped for being inverted.
3. the interlock of power distribution cabinet earthed switch and breaker chamber cabinet door according to claim 1, it is characterized in that, door lock tongue (3) is L shaped in described, the one end is fixedly connected on the upper end of location-plate (2), the other end is a hook-type (23), and described hook-type (23) matches with described locking device (4).
4. the interlock of power distribution cabinet earthed switch and breaker chamber cabinet door according to claim 1, it is characterized in that, described locking device (4) is a screw rod, this screw rod has the structure that can match with the spanner mouth, this screw rod is threaded with Zhong Men, form a gap between screw head and the middle door, the hook-type of described dead bolt connecting plate (23) matches with described gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200336347U CN201196926Y (en) | 2008-03-28 | 2008-03-28 | Interlocking apparatus of power distribution cabinet ground switch and breaker chamber cabinet door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200336347U CN201196926Y (en) | 2008-03-28 | 2008-03-28 | Interlocking apparatus of power distribution cabinet ground switch and breaker chamber cabinet door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201196926Y true CN201196926Y (en) | 2009-02-18 |
Family
ID=40416556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200336347U Expired - Fee Related CN201196926Y (en) | 2008-03-28 | 2008-03-28 | Interlocking apparatus of power distribution cabinet ground switch and breaker chamber cabinet door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201196926Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290727A (en) * | 2011-08-18 | 2011-12-21 | 伊顿电力设备有限公司 | Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears |
| CN102496516A (en) * | 2011-12-19 | 2012-06-13 | 太原惠特科技有限公司 | Explosion-proof box body locking mechanism provided with isolating switch on door to be locked |
| CN103573764A (en) * | 2013-11-05 | 2014-02-12 | 江苏威腾母线有限公司 | Locking device of bus duct jack box |
| EP2863498A1 (en) * | 2013-10-16 | 2015-04-22 | LSIS Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| CN106328427A (en) * | 2016-10-11 | 2017-01-11 | 浙江时通电气制造有限公司 | Grounding switching mechanism and lower cabinet door interlocking device of compact high-voltage switch cabinet |
| CN107564748A (en) * | 2017-10-31 | 2018-01-09 | 现代重工(中国)电气有限公司 | A kind of middle-placed switch cabinet door-plate interlock with ground protection |
-
2008
- 2008-03-28 CN CNU2008200336347U patent/CN201196926Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102290727A (en) * | 2011-08-18 | 2011-12-21 | 伊顿电力设备有限公司 | Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears |
| CN102290727B (en) * | 2011-08-18 | 2014-05-28 | 伊顿电力设备有限公司 | Device for interlocking cable chamber cabinet doors and switch operating mechanisms of medium-voltage and high-voltage switchgears |
| CN102496516A (en) * | 2011-12-19 | 2012-06-13 | 太原惠特科技有限公司 | Explosion-proof box body locking mechanism provided with isolating switch on door to be locked |
| CN102496516B (en) * | 2011-12-19 | 2013-11-13 | 太原惠特科技有限公司 | Explosion-proof box body locking mechanism provided with isolating switch on door to be locked |
| EP2863498A1 (en) * | 2013-10-16 | 2015-04-22 | LSIS Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| CN104576166A (en) * | 2013-10-16 | 2015-04-29 | Ls产电株式会社 | Door interlock device for transformer room of vacuum circuit breaker |
| US9732543B2 (en) | 2013-10-16 | 2017-08-15 | Lsis Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| CN103573764A (en) * | 2013-11-05 | 2014-02-12 | 江苏威腾母线有限公司 | Locking device of bus duct jack box |
| CN106328427A (en) * | 2016-10-11 | 2017-01-11 | 浙江时通电气制造有限公司 | Grounding switching mechanism and lower cabinet door interlocking device of compact high-voltage switch cabinet |
| CN107564748A (en) * | 2017-10-31 | 2018-01-09 | 现代重工(中国)电气有限公司 | A kind of middle-placed switch cabinet door-plate interlock with ground protection |
| CN107564748B (en) * | 2017-10-31 | 2020-01-17 | 现代重工(中国)电气有限公司 | In put cabinet door plant interlock with ground protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090218 Termination date: 20110328 |