CN202004361U - Interlocking device between grounding switch and rear door on air-insulated switchgear - Google Patents
Interlocking device between grounding switch and rear door on air-insulated switchgear Download PDFInfo
- Publication number
- CN202004361U CN202004361U CN2011200775007U CN201120077500U CN202004361U CN 202004361 U CN202004361 U CN 202004361U CN 2011200775007 U CN2011200775007 U CN 2011200775007U CN 201120077500 U CN201120077500 U CN 201120077500U CN 202004361 U CN202004361 U CN 202004361U
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- China
- Prior art keywords
- back door
- interlock
- slide plate
- earthed switch
- fixed
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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.)
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Abstract
The utility model provides an interlocking device between a grounding switch and a rear door on air-insulated switchgear. The interlocking device comprises a stop groove (11) which is fixed on the rear door (9) and a stop sheet (10) which is fixed on a shaft (6) and is clamped in the stop groove (11) when the grounding switch is in a disconnected state to prevent the rear door (9) from being opened. The interlocking device additionally comprises an interlocking sheet (7) which is fixed on the shaft (6) and a sliding sheet (14) which is used for clamping the interlocking sheet (7) when the rear door (9) is in an open state to prevent the shaft (6) from rotating and to ensure that the grounding switch cannot be disconnected. The interlocking mechanism ensure that the rear door of the air-insulated switchgear cannot be opened when the grounding switch is at an open position, the rear door can be opened when the grounding switch is at a closed position, and the grounding switch is not allowed to be disconnected when the rear door is in the open state. The interlocking mechanism is simple and convenient to operate, and cost can be effectively saved.
Description
Technical field
The utility model belongs to the power product technical field, is specifically related to a kind of interlock between earthed switch and back on the air insulation switchgear that is applied to.
Background technology
At present, press on the air insulation switchgear among the conventional 12kV, general back door to be opened/closed or the fixing back door cover plate of adopting in back door, the metal enclosed panel switches cabinet of a kind of armored is disclosed as Chinese utility model patent CN2355478Y, it is made up of fixing cabinet and removable handcart, cabinet adopts curved steel plate assembling of two-fold and riveted joint to form, and be separated into bus-bar room by metal partion (metp), breaker chamber, cable vault and low-pressure chamber, pressure releasing plate is arranged at the top, detachable metal partion (metp) is arranged between breaker chamber and bus-bar room and between breaker chamber and cable vault, the switch cubicle back door is designed to a cover plate, and itself and earthed switch do not have interlock.
But,, need the interlock of back door and earthed switch in order to guarantee operating personnel's safety for back door to be opened/closed.When earthed switch was in the position of " branch ", the back door of air insulation switchgear can't be opened; When earthed switch was in " closing " position, by this mechanism, the back door of air insulation switchgear can be opened; Under the state of opening at the back door, earthed switch does not allow to be separated, and has only when the back door is shut, and just can divide the ground connection switch.
Figure 1 shows that the interlock schematic diagram between existing earthed switch and back, is earthed switch operating axis 101, connecting rod 103, connecting rod 104 and back door 105 shown in the figure.When earthed switch separated, earthed switch was opened by connecting rod 103 restriction back doors 105, and when earthed switch is in when closing, its back door 105 is to open, but when back door 105 is not shut, earthed switch is limited by connecting rod 104 and separates.But this interlock structural design is simple inadequately, and required cost is also higher.
The utility model content
The utility model purpose provides the interlock between earthed switch and back door on a kind of air insulation switchgear, and it can guarantee that when earthed switch was in off-state, the back door of air insulation switchgear can't be opened; When earthed switch was in the close position, by this mechanism, the back door of air insulation switchgear can be opened; Under the state of opening at the back door, earthed switch does not allow to be disconnected, and has only when the back door is shut, and just can disconnect earthed switch.This mechanism design is simple and easy simultaneously, and is easy to operate, and particularly its cost is cheap relatively, thereby reduced cost.
According to most preferred embodiment of the present utility model, the interlock on the air insulation switchgear between earthed switch and back door comprises locking groove, is fixed on the back door; And locking plate, be fixed on the axle, be used for when earthed switch is in off-state, being stuck in the locking groove, thereby prevent that the back door is opened.
According to most preferred embodiment, interlock of the present utility model also comprises the locking plate that is fixed on the axle; And slide plate, be used for when the back door is in open mode, blocking locking plate, thus the rotation of restrictive axes, and then guarantee that earthed switch can not be disconnected.
According to most preferred embodiment, interlock of the present utility model also comprises the slide plate brace, and an end contacts with the back door, and the other end and slide plate are rotationally connected, and the slide plate brace is provided with sliding tray; And spring, the one end is fixed on the strutting piece, and the other end is fixed on the slide plate brace; When the back door was in open mode, spring provided elastic force for the slide plate brace, and the slide plate brace is moved to the back door direction, moved thereby drive slide plate, and blocked locking plate.
According to most preferred embodiment, the outer ring of locking plate of the present utility model is a semi-round ring shape.
According to most preferred embodiment of the present utility model, interlock also comprises drive bevel gear, switch bevel gear and earthed switch axle; Drive bevel gear and switch bevel gear are used for the rotation of earthed switch axle is delivered to axle.
Locking groove need be slightly larger than locking plate, locking plate is blocked guaranteeing.
Description of drawings
Fig. 1 is existing earthed switch and back gate interlock design diagram;
Fig. 2 A-2B is the schematic diagram of the interlocking device of the utility model back door and earthed switch, and wherein Fig. 2 A is a plane graph, and Fig. 2 B is a stereogram;
Fig. 3 be interlocking device of the present utility model under the earthed switch off-state with the interlocking schematic diagram at back door;
Fig. 4 be interlocking device of the present utility model under the earthed switch closure state, the schematic diagram that the back door can be opened;
Fig. 5 be interlocking device of the present utility model when the open state of back door, can not carry out the schematic diagram of opening operation to earthed switch.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, most preferred embodiment of the present utility model is described in more detail.
Shown in Fig. 2 A-2B, fixed support block 3 is fixed on the main mounting panel.Switch bevel gear 2 is housed, bevel gear 4,5 on it.Switch bevel gear 2 connects with earthed switch axle 1, and bevel gear 4,5 connects with axle 6.On the axle 6 locking plate 10 and locking plate 7 are housed fixedly.Strutting piece 12 is fixed on the side plate 8.Slide plate 14 1 ends rotate with strutting piece 12 and connect, and an end rotates with slide plate brace 13 and connects, and the other end of slide plate brace 13 and side plate 8 formations are slidingly connected.Be set with locking groove 11 on the back door 9.Spring 15 1 ends are fixed on the strutting piece 12, and an end is fixed on the slide plate brace 13.It is fashionable that close at back door 9, and back door 9 contacts with slide plate brace 13, just turns down slide plate brace 13 and move, so spring 15 is in extended state at this moment.
Fig. 3 be interlocking device under the earthed switch off-state with the interlocking schematic diagram at back door, as shown in the figure, when earthed switch is in off-state, locking plate 10 be stuck in locking groove 11 in, at this moment, the back door can not be opened.
Interlocking device of the present utility model shown in Figure 4 under the earthed switch closure state, the schematic diagram that the back door can be opened.Carry out the earthed switch closed procedure by earthed switch operating grip rotation axis 1, switch bevel gear 2 is rotated, and makes axle 6 turn over respective angles by bevel gear 4,5 transmission campaigns.Locking plate 10 just turns over respective angles, no longer is stuck in the locking groove 11.At this moment, the back door can be opened.
Fig. 5 interlocking device of the present utility model can not carry out the schematic diagram of opening operation to earthed switch when the open state of back door.As shown in the figure, when back door 9 is in open mode, it no longer contacts with slide plate brace 13, and at this moment, spring 15 relies on the elastic force effects to make slide plate brace 13 15 recover former length direction and move along sliding tray 131 towards spring.Slide plate 14 is also done corresponding rotation, and at this moment, locking plate 7 is blocked and can't rotate again by slide plate 14.Have only when back door 9 is shut, when promoting 13 slips of slide plate brace, make slide plate 14 corresponding rotations, locking plate 7 is rotated.
Although disclose preferred embodiment of the present utility model and accompanying drawing for the purpose of illustration, the person skilled in the art in the spirit and scope that do not break away from the utility model and appended claim, can do various replacements, variation and retouching.Therefore, the utility model should not be limited to preferred embodiment and the disclosed content of accompanying drawing, and protection range of the present utility model is as the criterion with the scope that appending claims was defined.
Claims (6)
1. the interlock between earthed switch and back door on the air insulation switchgear is characterized in that: comprise
Locking groove (11) is fixed on the back door (9); With
Locking plate (10) is fixed on the axle (6), is used for when earthed switch is in off-state, is stuck in the locking groove (11), thereby prevents that back door (9) is opened.
2. interlock according to claim 1 is characterized in that: interlock also comprises the locking plate (7) that is fixed on the axle (6); And slide plate (14), be used for blocking locking plate (7) when back door (9) when being in open mode, thus the rotation of restrictive axes (6), and then guarantee that earthed switch can not be disconnected.
3. interlock according to claim 2, it is characterized in that: interlock also comprises
Slide plate brace (13), an end contacts with the back door, and the other end and slide plate (14) are rotationally connected, and slide plate brace (13) is provided with sliding tray (131); With
Spring (15), one end are fixed on the strutting piece (12), and the other end is fixed on the slide plate brace (13); When back door (9) when being in open mode, spring (15) provides elastic force for slide plate brace (13), and slide plate brace (13) is moved to the back door direction, moves thereby drive slide plate (14), and blocks locking plate (7).
4. according to any described interlock of claim 2-3, it is characterized in that: the outer ring of locking plate (7) is a semi-round ring shape.
5. according to any described interlock of claim 1-3, it is characterized in that: interlock also comprises drive bevel gear (4,5), switch bevel gear (2) and earthed switch axle (1); Drive bevel gear (4,5) and switch bevel gear (2) are used for the rotation of earthed switch axle (1) is delivered to axle (6).
6. according to any described interlock of claim 1-3, it is characterized in that: locking groove (11) is slightly larger than locking plate (10), locking plate (10) is blocked guaranteeing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200775007U CN202004361U (en) | 2011-03-14 | 2011-03-14 | Interlocking device between grounding switch and rear door on air-insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200775007U CN202004361U (en) | 2011-03-14 | 2011-03-14 | Interlocking device between grounding switch and rear door on air-insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004361U true CN202004361U (en) | 2011-10-05 |
Family
ID=44707088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200775007U Expired - Lifetime CN202004361U (en) | 2011-03-14 | 2011-03-14 | Interlocking device between grounding switch and rear door on air-insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004361U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103093984A (en) * | 2013-01-17 | 2013-05-08 | 国家电网公司 | Switchgear earthing switch and cable room door interlocking mechanism |
| WO2013097175A1 (en) * | 2011-12-30 | 2013-07-04 | Abb Technology Ltd. | Mechanical interlock device among cable door, rear door and earthing switch |
| CN105244206A (en) * | 2015-11-12 | 2016-01-13 | 有能集团江苏电气有限公司 | Switch cabinet interlocking mechanism |
-
2011
- 2011-03-14 CN CN2011200775007U patent/CN202004361U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013097175A1 (en) * | 2011-12-30 | 2013-07-04 | Abb Technology Ltd. | Mechanical interlock device among cable door, rear door and earthing switch |
| CN104025230A (en) * | 2011-12-30 | 2014-09-03 | Abb技术有限公司 | Mechanical Interlock Device Among Cable Door, Rear Door And Earthing Switch |
| CN104025230B (en) * | 2011-12-30 | 2017-02-15 | Abb技术有限公司 | Mechanical Interlock Device Among Cable Door, Rear Door And Earthing Switch |
| CN103093984A (en) * | 2013-01-17 | 2013-05-08 | 国家电网公司 | Switchgear earthing switch and cable room door interlocking mechanism |
| CN103093984B (en) * | 2013-01-17 | 2017-02-08 | 国家电网公司 | Switchgear earthing switch and cable room door interlocking mechanism |
| CN105244206A (en) * | 2015-11-12 | 2016-01-13 | 有能集团江苏电气有限公司 | Switch cabinet interlocking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180601 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Zurich Patentee before: ABB T & D Technology Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111005 |
|
| CX01 | Expiry of patent term |