CN2512099Y - Linked lock against mistaking ground operation of switch cabinet - Google Patents
Linked lock against mistaking ground operation of switch cabinet Download PDFInfo
- Publication number
- CN2512099Y CN2512099Y CN 01278131 CN01278131U CN2512099Y CN 2512099 Y CN2512099 Y CN 2512099Y CN 01278131 CN01278131 CN 01278131 CN 01278131 U CN01278131 U CN 01278131U CN 2512099 Y CN2512099 Y CN 2512099Y
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- cabinet
- ground connection
- ground
- baffle plate
- dolly
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Abstract
The utility model relates to an interlocking device against mistaking ground operation of a switch cabinet, which belongs to a mechanical interlocking mechanism of an electric switch cabinet. The utility model is mainly used for preventing outgoing wires or a main bus from generating mistaking ground operation before or after an armoured handcart type high-voltage switch cabinet is maintained, and solves the problem that a grounding electricity-testing cart of the existing interlocking device can not ground in the cabinet after electric test or the existing interlocking device can ground when no cart is in the cabinet to generate unsafety. The interlocking device against mistaking ground operation of a switch cabinet is added with small poles (14), (15) on the front face and small poles (16), (17) on the back face of a rocking plate (5), a bent plate (8) and a table (2) below the bent plate (8), a small bent plate (9) of the middle side part of a baffle plate (10), and a spring (1) and an upright rod (4) below the baffle plate (10). The utility model allows the grounding electricity-testing cart to ground in the cabinet after electric test and only allows the grounding electricity-testing cart to ground in the cabinet so as to ensure the order of the safe operation before or after a device is maintained.
Description
(1) technical field:
The anti-error ground connection interlock of this switch cubicle belongs to the cabinet mechanical interlock mechanism, and what be mainly used in outlet of armored withdraw type high-tension switch cabinet and main bus bar prevents the ground connection misoperation.
(2) background technology:
The armouring hand is removed the high voltage switchgear that switch cubicle is electric components such as interior dress circuit breaker, instrument transformer (wherein circuit breaker is stated from the dolly, can move on the slide rail, so claim circuit breaker dolly or this cabinet dolly) in cabinet.When needs overhaul cabinet inside electrical equipment,---disconnection ground connection after electrical verification (whether also having with the check of ground connection electrical verification dolly)---is confirmed not have electricity back ground connection (with the ground connection handle ground cutter operating axis in the cutter handle hole rotationally)---and overhaul to finish is then definitely avoided ground connection afterwards At All Other Times must be before maintenance to carry out the ground connection operation of following order to its outlet, main bus bar etc.: outage.
The key that guarantees above-mentioned safety operation is to the screening that is located at the ground cutter handle hole on the cabinet and the control of dew, for this reason, all is provided with the interlock of anti-error ground connection in this switch cubicle.This interlock mainly is made up of rocker, bent plate, baffle plate and bayonet lock etc., and wherein bent plate is fixed on the cabinet right column, and the pivot pin on it rotates with axis hole on the rocker and is connected; Rocker can be push-jump by this cabinet dolly gusset (being fixed on the dihedral plate on the dolly) or ground connection electrical verification dolly gusset (identical with this cabinet dolly gusset), drive on the baffle plate and move, ground cutter handle hole is blocked, just can not ground connection when like this, dolly (no matter being this cabinet dolly or ground connection electrical verification dolly) being arranged in the cabinet.When dolly withdrawed from outer back of cabinet or the cabinet no dolly, rocker and baffle plate resetted, and ground cutter handle hole exposes, and can carry out ground connection operation; Bayonet lock with ground cutter operating axis interlock after the ground connection stretches out, block the baffle plate that has fallen make it can not on move, thereby prevent that this cabinet dolly from entering in the cabinet when ground state.
Obviously, this interlock has the following disadvantages: 1, (also confirm the nothing electricity, down together) after the electrical verification of ground connection electrical verification dolly and must withdraw from the outer ability of cabinet ground connection; 2, as long as no dolly just can ground connection in the cabinet.Like this, just can not guarantee after the electrical verification timely ground connection and have only ground connection electrical verification dolly to enter in the cabinet operation sequence that could ground connection ensures safety really.
(3) utility model content:
The purpose of the utility model design is that the anti-error ground connection interlock at existing armored withdraw type high-tension switch cabinet can not guarantee after the electrical verification timely ground connection and have only the unsafe problems that ground connection electrical verification dolly could ground connection after the electrical verification in cabinet, the existing anti-error ground connection interlock of switch cubicle is improved, a kind of anti-error ground connection interlock of switch cubicle of the operation sequence that can guarantee after the electrical verification timely ground connection and have only ground connection electrical verification dolly to enter in the cabinet after the electrical verification could ground connection to ensure safety really is provided.
This Design of device scheme is:
The anti-error ground connection interlock of switch cubicle mainly also is made up of rocker, bent plate, baffle plate and bayonet lock, wherein bent plate is fixed on the cabinet right column, bearing pin on rocker and the bent plate is rotationally connected, the rocker that baffle plate can be rotated moves on promoting, flexible and the ground cutter operating axis interlock of bayonet lock, but have following different with the anti-error ground connection interlock of existing switch cubicle:
A, described rocker are just being worn two pillars, two pillars of back side band;
B, described baffle plate medial side are worn a little bent plate, bottom bending part band one circular hole;
There is one can and be placed in the spring that also can hold baffle plate in the vertical rod under c, the described baffle plate bottom bending part circular hole by the vertical rod on this circle hole sleeve.
For realizing the function of this device, also to make corresponding change with this cabinet dolly gusset and ground connection electrical verification dolly gusset (all not belonging to this device) that this device is used: a bearing pin (so that pushing away, draw rocker to rotate) that can insert rocker upper shaft hole (Pear-Shaped hole) is all arranged on two kinds of gussets of existing apparatus, and the inclined-plane all up, and just morpheme is identical; And do not have bearing pin on two kinds of gussets of this device, and the inclined-plane of this cabinet dolly gusset is down, thereby dolly electric angle plate is tested for high than ground connection in the position that enters cabinet at first.
Owing to done as above to improve, this device just can guarantee after the electrical verification timely ground connection and have only ground connection electrical verification dolly enter cabinet interior after the operation sequence that ensures safety really of ability ground connection:
1, the assurance of ground connection in time after the electrical verification: in the time of need overhauling the electrical equipment in the equipment, after the outage ground connection electrical verification dolly is pushed in the cabinet, this ground connection electrical verification dolly gusset promotes a pillar on the rocker, the drive rocker rotates, make another pillar of holding baffle plate on the rocker originally leave baffle plate, just can be by the baffle plate that latch bracket with ground cutter handle hole is exposed, thereby can carry out the ground connection operation, i.e. ground connection electrical verification dolly enters just can implement ground connection operation (finish the maintenance back and must recover to disconnect ground state certainly) immediately after the electrical verification of service position in the cabinet.
2, have only ground connection electrical verification dolly to enter the assurance of ability ground connection in the cabinet: after the ground connection, stretch out with the bayonet lock of ground cutter operating axis interlock, block the baffle plate that has moved down, make it can not on move, little bent plate above the baffle plate naturally can not on move, like this this little bent plate just be able to block the inclined-plane down, enter higher this cabinet dolly gusset in position in the cabinet, make this cabinet dolly can not enter in the cabinet; After ground connection disconnects, bayonet lock withdrawal with the interlock of ground cutter operating axis, baffle plate moves under spring action, ground cutter handle hole is blocked by baffle plate again, this cabinet dolly can enter in the cabinet, but its gusset can not promote rocker and rotate, and this moment and baffle plate are held and can not be moved down by a pillar of rocker again, thereby the ground connection operation when having prevented that this cabinet dolly is in cabinet.In other words, after the ground connection, this cabinet dolly does not advance in the cabinet; After disconnecting ground connection, this cabinet dolly can enter in the cabinet but can't carry out the ground connection operation.Therefore have only ground connection electrical verification dolly to enter and just can carry out the ground connection operation in the cabinet.Like this, just can guarantee that safety is perfectly safe.
(4) description of drawings:
Fig. 1 is an armored withdraw type high-tension switch cabinet schematic appearance;
Fig. 2 is the existing anti-error ground connection interlock of switch cubicle and two kinds of dolly gusset sketches;
Fig. 3 is that the anti-error ground connection interlock of this switch cubicle ground cutter handle hole is by retaining state and two kinds of dolly gusset sketches;
The anti-error ground connection interlock of this switch cubicle of Fig. 4 baffle plate is depressed, the cutter handle hole expose state and two kinds of dolly gusset sketches;
Fig. 5 is the anti-error ground connection interlock of this switch cubicle rocker front view and vertical view;
Fig. 6 is the anti-error ground connection interlock of this switch cubicle baffle plate front view, vertical view and right view.
The right part circle is the anti-error ground connection interlock of this switch cubicle position among Fig. 1.
Each parts of Fig. 2 by: ground connection electrical verification dolly gusset (3), rocker (5), bent plate (8), baffle plate (10) (bottom band one grow crosswise hole), cutter handle hole (11), cabinet right column (12), with the bayonet lock (13) of ground cutter operating axis interlock, rocker 5 the bearing pin (20) be with on the Pear-Shaped axis hole (19), ground connection electrical verification dolly gusset 3 on band pin (18), the rocker 5.
Each parts is followed successively by among Fig. 3: the jack-post (6), this cabinet dolly gusset (7), bent plate (8), little bent plate (9), baffle plate (10) of band on spring (1), platform (2), ground connection electrical verification dolly gusset (3), vertical rod (4), rocker (5), the rocker 5, cutter handle hole (11), cabinet right column (12), be welded on the baffle plate 10 with bayonet lock (13), its medium and small bent plate 9 of ground cutter operating axis interlock, platform 2 is welded on the bent plate 8, and vertical rod 4 is welded on the bent plate 8.
Each parts of Fig. 4 and Fig. 3 are together.
Figure 5 shows that the rocker (5) among Fig. 2 and Fig. 3, it is just wearing pillar (14) and (15), is with pillar (16) and (17) on the back side.
Figure 6 shows that the baffle plate (10) among Fig. 2 and Fig. 3, its middle part band bent plate (9).
(5) embodiment:
Above-mentioned Fig. 3～Fig. 6 is the diagram of embodiment of the present utility model (embodiment).Below in conjunction with description of drawings existing apparatus and each parts relationship of the utility model generator and course of action:
By the Fig. 2 that represents existing apparatus as can be seen, when ground connection electrical verification dolly gusset 3 begins into cabinet, bearing pin 20 on it enters rocker 5 hardy holes 19, along with the key of ground connection electrical verification dolly on its operation panel (do not belong to this device, draw) rotation promote in cabinet, to move, rocker 5 is promoted to rotate counterclockwise by bearing pin 20, and then moves on the moving baffle plate 10 of the pore area of growing crosswise by pin on the rocker 5 18 and baffle plate 10 bottoms, and last baffle plate blocks ground cutter handle hole 11.That is to say, when ground connection electrical verification dolly enters in the cabinet behind the service position, be (certainly, because of this cabinet dolly gusset is identical with ground connection electrical verification dolly gusset, this cabinet dolly also can't carry out ground connection operation when entering in the cabinet) that can't carry out the ground connection operation.When the electrical verification of ground connection electrical verification dolly retreat offer for sale outside the time, its gusset drives rocker, baffle plate is done action in the other direction, ground cutter handle hole exposes, and can carry out the ground connection operation.
By Fig. 3 and Fig. 4 as can be seen, when switch cubicle cuts off the power supply and is in unearthed state, ground connection electrical verification dolly is pushed in the cabinet and the key that rotates on this car operation panel (does not belong to this device, do not draw), driving this car gusset 3 promotes pillar positive on the rocker 5 14, and then drive rocker 5 rotates counterclockwise, another pillar 17 that makes the back side on the rocker 5 hold baffle plate originally leaves baffle plate 10, baffle plate 10 just can be made ground connection handle hole 11 expose under the hand, thereby can carry out the ground connection operation, i.e. ground connection electrical verification dolly enters just can implement the ground connection operation immediately after the electrical verification of service position in the cabinet; And in other cases, ground cutter handle hole 11 is held and then blocked to baffle plate 10 by spring 1, and the pillar on the rocker 5 17 holds baffle plate 10 and make it to move down and expose ground cutter handle hole 11, thereby can prevent the ground connection misoperation.When equipment is in outlet and busbar grounding state, if mistake pushes this cabinet dolly in cabinet, then different with ground connection electrical verification dolly gusset 3 morphemes because of this cabinet dolly gusset 7, the newly-increased little bent plate 9 of the side, baffle plate 10 middle part that be able to have been moved down blocks and can not enter cabinet, thereby can prevent that this cabinet dolly car from entering cabinet after ground connection; After having only the above-mentioned ground connection of disconnection, bayonet lock 13 withdrawals with the interlock of ground cutter operating axis, spring 1 resets baffle plate 10 and rocker 5, this cabinet dolly gusset 7 is not just stopped by little bent plate 9 and allows dolly enter in the cabinet, but its gusset can not make rocker rotate, pillar 17 on the rocker is held baffle plate and can not be moved down, thereby this cabinet dolly enters and can't implement ground connection operation in the cabinet.
The effect of platform 2 and pillar 15 is to hold rocker 5 (pillar 15 rides on the platform 2) among the figure, makes rocker 5 remain on level; The effect of pillar 16 is that this pillar is lived by baffle plate right lateral bend side bumper after the ground connection, makes the state after rocker keeps rotating; Bayonet lock 13 can pass through a small rod slide block mechanism with ground cutter operating axis interlock, or on ground cutter operating axis periphery, establish a pit and match with bayonet lock 13, add a reed and block annular groove on the bayonet lock 13, bayonet lock 13 pits of coming in and going out just can be realized stretching when ground cutter operating axis rotated.
This shows that this device can either guarantee after the electrical verification of ground connection electrical verification dolly ground connection in time, can guarantee to have only ground connection electrical verification dolly to enter in the cabinet again could ground connection, thereby guaranteed the safety operation of switch cubicle outlet and main bus bar ground connection.
The on probation and test of the utility model shows it is fully reliably.
Claims (1)
1, the anti-error ground connection interlock of a kind of switch cubicle, form by rocker (5), bent plate (8), baffle plate (11) and bayonet lock (13), wherein bent plate (8) is fixed on the cabinet right column (12), bearing pin on rocker (5) and the bent plate (8) is rotationally connected, rocker (5) when baffle plate (10) can be rotated moves on promoting, flexible and the ground cutter operating axis interlock of bayonet lock (13) is characterized in that:
A, described rocker (5) are just being worn pillar (14) and (15), back side band pillar (16) and (17);
B, described baffle plate (10) medial side are worn a little bent plate (9), bottom bending part band one circular hole;
There is one can and be placed in the spring (1) that baffle plate was gone up and can be held in vertical rod (4) under c, described baffle plate (10) the bottom bending part circular hole by the vertical rod on this circle hole sleeve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01278131 CN2512099Y (en) | 2001-12-11 | 2001-12-11 | Linked lock against mistaking ground operation of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01278131 CN2512099Y (en) | 2001-12-11 | 2001-12-11 | Linked lock against mistaking ground operation of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2512099Y true CN2512099Y (en) | 2002-09-18 |
Family
ID=33681689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01278131 Expired - Fee Related CN2512099Y (en) | 2001-12-11 | 2001-12-11 | Linked lock against mistaking ground operation of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2512099Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776979B (en) * | 2005-11-07 | 2010-05-05 | 北京华东电气股份有限公司 | Handcart high-voltage switch cabinet mechanical interlock mechanism |
| CN103247467A (en) * | 2013-04-06 | 2013-08-14 | 广东南粤电气有限公司 | Interlocking mechanism and interlocking control method for lower door of high-tension switch cabinet and earthing switch |
-
2001
- 2001-12-11 CN CN 01278131 patent/CN2512099Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1776979B (en) * | 2005-11-07 | 2010-05-05 | 北京华东电气股份有限公司 | Handcart high-voltage switch cabinet mechanical interlock mechanism |
| CN103247467A (en) * | 2013-04-06 | 2013-08-14 | 广东南粤电气有限公司 | Interlocking mechanism and interlocking control method for lower door of high-tension switch cabinet and earthing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |