CN103247467A - Interlocking mechanism and interlocking control method for lower door of high-tension switch cabinet and earthing switch - Google Patents
Interlocking mechanism and interlocking control method for lower door of high-tension switch cabinet and earthing switch Download PDFInfo
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- CN103247467A CN103247467A CN2013101151112A CN201310115111A CN103247467A CN 103247467 A CN103247467 A CN 103247467A CN 2013101151112 A CN2013101151112 A CN 2013101151112A CN 201310115111 A CN201310115111 A CN 201310115111A CN 103247467 A CN103247467 A CN 103247467A
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Abstract
An interlocking mechanism for a lower door of a high-tension switch cabinet and an earthing switch comprises a cabinet body, wherein the lower door, a protection plate and the earthing switch are arranged on the cabinet body; an operation shaft of the earthing switch is coaxially and fixedly connected with a cam; an arc-shaped support is mounted on the protection plate; an interlocking lever is arranged below the cam; the lower door is fixedly connected with a horizontal tongue plate; a round hole is formed in the tail end of the horizontal tongue plate; a notch is formed in the periphery of the round hole; the diameter of a vertical section of the interlocking lever is smaller than the diameter of the round hole in the horizontal tongue plate and larger than the width of the notch in the horizontal tongue plate; the diameter of a necking section of the interlocking lever is smaller than the width of the notch in the horizontal tongue plate; a horizontal limit pin is fixedly connected onto the vertical section of the interlocking lever; and a reset spring is arranged between the horizontal limit pin and a lower horizontal wing of the arc-shaped support. The invention further discloses an interlocking control method for the lower door of the high-tension switch cabinet and the earthing switch. According to the interlocking mechanism and the interlocking control method for the lower door of the high-tension switch cabinet and the earthing switch, the lower door of the high-tension switch cabinet and the earthing switch can be interlocked reliably when equipment works normally, and the lower door of the cabinet is opened rapidly and forcibly when the equipment breaks down suddenly.
Description
Technical field
The invention belongs to the technical field of high voltage switchgear, be specifically related to a kind of high-tension switch cabinet Xiamen and earthed switch interlocking device and interlocking control method.
Background technology
High voltage switchgear is the complete power distribution equipment of 3.6～12KV.Be mainly used in power plant, medium and small generator and send being subjected to electricity, sending electricity and large-scale high-tension motor starting etc. of secondary substation of electricity, industrial and mineral enterprises and institutions distribution and electric power system, carry out the usefulness of control protection, monitoring.Because the voltage height of high voltage switchgear, for ensureing Operation and Maintenance personnel's personal safety, prevent operating personnel's mistakenly entering into charged compartment, high voltage switchgear need be installed safe and reliable interlock, satisfy " five is anti-" locking requirement, wherein the interlock requirement between cabinet Xiamen and the earthed switch is specific as follows: during the high voltage switchgear operation, earthed switch is in gate-dividing state, the cabinet Xiamen of charged compartment forbids opening, to guarantee security of operation; When needs overhaul equipment, after switch has a power failure, must make the interior earthed switch of cabinet be in "on" position, i.e. cabinet inside safety ground, the cabinet Xiamen just can be opened; In addition, when equipment generation catastrophic failure, and under the situation that earthed switch can't close a floodgate, should there be the emergency release mode can open the cabinet Xiamen rapidly.
Summary of the invention
The object of the present invention is to provide a kind of high-tension switch cabinet Xiamen and earthed switch interlocking device and interlocking control method, it when the equipment operate as normal between cabinet Xiamen and the earthed switch interlocking reliable, when equipment generation catastrophic failure can be opened the cabinet Xiamen again rapidly.
Its purpose can realize by following scheme: a kind of high-tension switch cabinet Xiamen and earthed switch interlocking device, comprise cabinet, cabinet is provided with Xiamen, protective plate, earthed switch, earthed switch operating axis, Xiamen and protective plate are all perpendicular to horizontal plane, and Xiamen and protective plate are orthogonal, it is characterized in that the coaxial cam that is fixedly connected with of earthed switch operating axis; When earthed switch operating axis drive earthed switch was in gate-dividing state, the salient point of cam turned to left side or the right side of the central axis of cam; When the earthed switch operating axis drives earthed switch and is in "on" position, the salient point of cam turn to cam central axis under;
At protective plate bow-shaped support is installed, bow-shaped support is provided with horizontal tail, following horizontal tail, the middle vertical wing, and last horizontal tail, following horizontal tail all have circular pilot hole, and two circular pilot holes are aimed at up and down; Can vertically be provided with blocking lever movably under cam, blocking lever is the L shaped of handstand, and the horizontal segment of blocking lever is positioned at vertical section top of blocking lever; Vertical section of blocking lever can be passed the circular pilot hole of horizontal tail, the circular pilot hole of following horizontal tail up and downly, and the horizontal segment of blocking lever is resisted against the cam surface below of cam;
Described Xiamen is fixedly connected with a horizontal hyoplastron, and horizontal hyoplastron end offers circular hole, and this circular hole edge is formed with breach; When the Xiamen was in closure state, described blocking lever is the circular hole of the horizontal hyoplastron of section aligning vertically; Blocking lever vertically the diameter of section less than the Circularhole diameter on the horizontal hyoplastron greater than the gap width on the horizontal hyoplastron; Be formed with the necking segment of one section reduced in the centre of the vertical section of blocking lever, the diameter of this necking segment is less than the gap width on the horizontal hyoplastron; Be fixedly connected with a horizontal spacer pin that has magnetic in the vertical section of blocking lever, the vertical wing offers slotted hole in the centre of bow-shaped support, and the length of slotted hole is to being vertical, and horizontal spacer pin passes this vertical slotted hole; Be provided with the back-moving spring of exerting pressure between the following horizontal tail of horizontal spacer pin and bow-shaped support, back-moving spring is enclosed within the vertically outside of section of blocking lever; When being moved down into lowest limit point position under the driving of blocking lever at cam, the slotted hole that horizontal spacer pin is moved down into bow-shaped support bottom, and the vertical position of horizontal hyoplastron breach is aimed at the vertical position of blocking lever necking segment; When being moved upwards up to upper limit (UL) point position under the effect of blocking lever at back-moving spring, horizontal spacer pin is moved upwards up to slotted hole the top of bow-shaped support, and the vertical position of the vertical position of horizontal hyoplastron breach and blocking lever necking segment staggers up and down;
Have handle hole in described Xiamen, the Xiamen also is rotatably mounted with a cover plate, and cover plate hides in the handle hole outside.
A kind of high-tension switch cabinet Xiamen and earthed switch interlocking control method is characterized in that, adopt above-mentioned high-tension switch cabinet Xiamen and earthed switch interlocking device;
When high voltage switchgear needs normal operation, rotate the earthed switch operating axis, make earthed switch be in gate-dividing state, the salient point of cam turns to the left of its central axis or right-hand in company with the earthed switch operating axis, blocking lever is moved upwards up to upper limit (UL) point position under the effect of back-moving spring, horizontal spacer pin is moved upwards up to slotted hole the top of bow-shaped support, the vertical position of horizontal hyoplastron breach and the vertical position of blocking lever necking segment are staggered up and down, the necking segment of blocking lever is in horizontal hyoplastron top, moving horizontally of blocking lever limit levels hyoplastron and Xiamen limited the Xiamen thus and opened;
When needs overhaul high voltage switchgear, rotate the earthed switch operating axis, make earthed switch be in "on" position, the salient point of cam turns to the below of its central axis in company with the earthed switch operating axis, the salient point of cam is pushed down the horizontal segment of blocking lever downwards, the thrust of cam overcomes the pressure of back-moving spring, make blocking lever be moved down into lowest limit point position, the slotted hole that horizontal spacer pin is moved down into bow-shaped support bottom, the vertical position of horizontal hyoplastron breach is aimed at the vertical position of blocking lever necking segment, can freely open the Xiamen thus;
When high voltage switchgear generation catastrophic failure, and earthed switch can't close a floodgate, when needing the emergency opening Xiamen, stir down door cover plate, make the cover plate rotation until the handle hole that exposes the Xiamen, then pass handle hole on the Xiamen with screwdriver, make the screwdriver handle of a knife be positioned at Xiamen outside and the screwdriver end is positioned at the inside, Xiamen, according to the magnetic attraction direction of horizontal spacer pin to the screwdriver end, the relative position of determined level spacer pin and screwdriver end, under this magnetic attraction guiding and attracting, the screwdriver end is placed horizontal spacer pin top, screwdriver is terminal toward pressing down, the horizontal spacer pin of drive is toward pressing down, until the slotted hole of horizontal spacer pin contact bow-shaped support bottom, make blocking lever be moved down into lowest limit point position, make the vertical position of horizontal hyoplastron breach aim at the vertical position of blocking lever necking segment, thus can the positive opening Xiamen.
So-called " the lowest limit point position that blocking lever moves ", when referring to that salient point when cam is positioned under the cam shaft, blocking lever is residing position under the driving of cam; So-called " the upper limit (UL) point position that blocking lever moves " refers to that salient point when cam is positioned on the left of the cam shaft or during the horizontal direction on right side, moves up under the effect of blocking lever back-moving spring and residing position when contacting cam surface.
The present invention has the following advantages and effect:
1, when earthed switch is in "on" position, the salient point of cam turns to the below of its central axis in company with the earthed switch operating axis, the salient point of cam is pushed down the horizontal segment of blocking lever downwards, make blocking lever and horizontal spacer pin go downwards to lowest order, back-moving spring is compressed, the vertical position of horizontal hyoplastron breach will be aimed at the vertical position of blocking lever necking segment naturally, because the diameter of blocking lever necking segment is littler than the gap width of horizontal hyoplastron, the blocking lever necking segment can be deviate from (relative motion) from the breach of horizontal hyoplastron, make horizontal hyoplastron break away from the restriction of blocking lever, the Xiamen can freely be opened.
2, when earthed switch is in gate-dividing state, the salient point of cam turns to the left of its central axis or right-hand in company with the earthed switch operating axis, blocking lever is at the highest notch under the effect of back-moving spring, the vertical section of blocking lever is in the circular hole of horizontal hyoplastron, the necking segment of blocking lever is in horizontal hyoplastron top, the vertical position of the vertical position of horizontal hyoplastron breach and blocking lever necking segment staggers, because the diameter of the vertical section of blocking lever is greater than the gap width of circular hole on the horizontal hyoplastron, blocking lever vertically section can not be deviate from (relative motion of horizontal direction) from the breach level of horizontal hyoplastron, horizontal hyoplastron is limited and can't move horizontally by blocking lever, and horizontal hyoplastron is connected to one with the Xiamen, therefore the Xiamen can't be opened.
3, because earthed switch is in gate-dividing state during the high-tension switch cabinet operation, the Xiamen is pinned and can't be opened by interlock, but when appearring in equipment, catastrophic failure need open the Xiamen fast when carrying out emergency treatment, can stir the cover plate of Xiamen, can make the cover plate rotation until the handle hole that exposes the Xiamen, then pass handle hole on the Xiamen with screwdriver, because handle hole is being plugged in screwdriver, therefore can't utilize naked eyes to lean against the position of handle hole next door eye-level spacer pin, but, by feat of the magnetic attraction direction of horizontal spacer pin to screwdriver, can the determined level spacer pin and the relative position of screwdriver end, and under this magnetic attraction guiding and attracting, can rapidly the screwdriver end be placed horizontal spacer pin top, avoid occurring the terminal long-time rough sledding of seeking less than horizontal spacer pin of screwdriver, for emergency action is raced against time; After the screwdriver end places horizontal spacer pin top, with the past lowest limit position that presses to of horizontal spacer pin, the vertical position of blocking lever necking segment will be aimed at horizontal hyoplastron breach naturally, because the diameter of blocking lever necking segment is littler than the breach of horizontal hyoplastron, horizontal hyoplastron can break away from the restriction of blocking lever and carry out emergency release, and the Xiamen can freely be opened.
4. the present invention is simple in structure, and interlocking is reliable between cabinet Xiamen and the earthed switch when the equipment operate as normal, when equipment generation catastrophic failure can be opened the cabinet Xiamen again rapidly.
Description of drawings
Structural representation (except Xiamen and the horizontal hyoplastron) when Fig. 1 is earthed switch separating brake of the present invention.
Fig. 2 is earthed switch of the present invention structural representation (except Xiamen and the horizontal hyoplastron) when closing a floodgate.
Structural representation (comprising Xiamen and horizontal hyoplastron) when Fig. 3 is earthed switch separating brake of the present invention.
Fig. 4 is the schematic perspective view of structure shown in Figure 3 (except Xiamen and the earthed switch operating axis).
Fig. 5 is the view of structure shown in Figure 4 when earthed switch closes a floodgate.
Fig. 6 is the schematic top plan view of state shown in Figure 3.
Fig. 7 is the enlarged diagram of hyoplastron and blocking lever among Fig. 6.
Fig. 8 is the view of structure shown in Figure 6 when earthed switch closes a floodgate.
Fig. 9 is the enlarged diagram of horizontal hyoplastron and blocking lever among Fig. 8.
Figure 10 is the structural representation of blocking lever.
Figure 11 is the perspective view of hyoplastron.
Figure 12 is the perspective view of support.
Figure 13 is the perspective view of cover plate.
Figure 14 is the Facad structure schematic diagram of high-tension switch cabinet.
Figure 15 is high-tension switch cabinet cabinet door Facad structure schematic diagram under the cover plate open mode when carrying out emergency release.
Figure 16 is the private side TV structure schematic diagram of the present invention when carrying out the emergency release state.
Figure 17 is the plan structure schematic diagram of state shown in Figure 16.
Embodiment
Embodiment one
Fig. 1, Fig. 2, Fig. 3, Fig. 4, high-tension switch cabinet Xiamen and earthed switch interlocking device shown in Figure 5 comprise cabinet, cabinet is provided with Xiamen 1, protective plate 9, earthed switch, earthed switch operating axis 2, Xiamen 1 and protective plate 9 are all perpendicular to horizontal plane, and Xiamen 1 and protective plate 9 are orthogonal, the earthed switch operating axis 2 coaxial cams 21 that are fixedly connected with; When earthed switch operating axis 2 drive earthed switches were in gate-dividing state, the salient point 211 of cam 21 turned to the right side of the central axis of cam, as shown in Figure 1; When earthed switch operating axis 2 drives earthed switches and is in "on" position, the salient point 211 of cam turn to cam 21 central axis under, as shown in Figure 2.
Fig. 6, Fig. 8, Fig. 4, Fig. 5, shown in Figure 12, at protective plate 9 bow-shaped support 5 is installed, bow-shaped support 5 is provided with horizontal tail 52, following horizontal tail 53, the middle vertical wing 54, last horizontal tail 52 has circular pilot hole 521, following horizontal tail 53 has circular pilot hole 531, two circular pilot holes 521,531 and aims at up and down; Fig. 1, Fig. 2, Fig. 3, Figure 10, shown in Figure 12 can vertically be provided with blocking lever 3 21 times movably at cam, and blocking lever 3 is the L shaped of handstand, and the horizontal segment 31 of blocking lever is positioned at vertical section 32 tops of blocking lever; Vertical section 32 of blocking lever can be passed the circular pilot hole 521 of horizontal tail, the circular pilot hole 531 of following horizontal tail up and downly, and the horizontal segment 31 of blocking lever is resisted against the cam surface below of cam 21.
Fig. 4, Fig. 5, Fig. 6, Fig. 8, shown in Figure 11, Xiamen 1 is fixedly connected with a horizontal hyoplastron 4, and horizontal hyoplastron 4 ends offer circular hole 41, and this circular hole edge is formed with breach 42; When Xiamen 1 was in closure state, described blocking lever is the circular hole 41 of the horizontal hyoplastron of section 32 alignings vertically.
Fig. 1 is to shown in Figure 10, blocking lever vertically the diameter of section 32 less than circular hole 41 diameters on the horizontal hyoplastron greater than breach 42 width on the horizontal hyoplastron; Be formed with the necking segment 321 of one section reduced in the centre of the vertical section 32 of blocking lever, the diameter of this necking segment 321 is less than breach 42 width on the horizontal hyoplastron; Be fixedly connected with a horizontal spacer pin 6 of being made by magnet in the vertical section 32 of blocking lever, the vertical wing 54 offers slotted hole 541 in the centre of bow-shaped support, and the length of slotted hole is to being vertical, and horizontal spacer pin 6 passes this vertical slotted hole 541; Be provided with the back-moving spring 8 of exerting pressure between the following horizontal tail 53 of horizontal spacer pin 6 and bow-shaped support, back-moving spring 8 is enclosed within the vertically outside of section 32 of blocking lever;
When blocking lever 3 is moved down into lowest limit point position under the driving of cam 21, the slotted hole 541 that horizontal spacer pin 6 is moved down into bow-shaped support bottom, and the vertical position of horizontal hyoplastron breach 42 is aimed at the vertical position of blocking lever necking segment 321, Xiamen this moment (can freely open) free to rotate; When blocking lever 3 is moved upwards up to upper limit (UL) point position under the effect of back-moving spring 8, horizontal spacer pin 6 is moved upwards up to slotted hole 541 the tops of bow-shaped support, the vertical position of the vertical position of horizontal hyoplastron breach 42 and blocking lever necking segment 321 staggers up and down, the vertical position that is horizontal hyoplastron breach 42 is positioned under the blocking lever necking segment 321, and this moment, (namely can not open) can not freely be rotated in the Xiamen;
Figure 13, Figure 14, shown in Figure 15 have handle hole 11 in described Xiamen 1, and the Xiamen also is rotatably mounted with a cover plate 7, and cover plate 7 hides in handle hole 11 outsides; The end of cover plate 7 is provided with strip breach 712, and cover plate 7 also is connected with shifting block 72.Also offer screw 12 on Xiamen 1, the position of screw 12 is corresponding with the position of strip breach 712, has been screwed a screw 73 in screw 12, and the screw cap of screw 73 is pressed in the strip gap edge of cover plate.
Embodiment two
A kind of high-tension switch cabinet Xiamen and earthed switch interlocking control method, the high-tension switch cabinet Xiamen and the earthed switch interlocking device that adopt embodiment one; When high-tension switch cabinet needs normal operation, rotate earthed switch operating axis 2, make earthed switch be in gate-dividing state, the salient point 211 of cam 21 turns to the right-hand of cam center axis in company with the earthed switch operating axis, blocking lever 3 is moved upwards up to upper limit (UL) point position under the effect of back-moving spring 8, horizontal spacer pin 6 is moved upwards up to slotted hole 541 the tops of bow-shaped support, the vertical position of horizontal hyoplastron breach 42 and the vertical position of blocking lever necking segment 321 are staggered up and down, the necking segment 321 of blocking lever is in horizontal hyoplastron 4 tops, the vertical section 32 of blocking lever is in the circular hole 41 of horizontal hyoplastron, as Fig. 1, Fig. 4, Fig. 6, shown in Figure 7, because the diameter of the vertical section 32 of blocking lever is greater than breach 42 width on the horizontal hyoplastron, blocking lever vertically section 32 can not be deviate from (relative motion of horizontal direction) from the breach level of horizontal hyoplastron 4, moving horizontally of blocking lever limit levels hyoplastron 4 and Xiamen 1, and horizontal hyoplastron 4 is connected to one with Xiamen 1, limits Xiamen 1 thus and opens;
When needs overhaul high-tension switch cabinet, rotate earthed switch operating axis 2, make earthed switch be in "on" position, the salient point 211 of cam 21 turns to the below of its central axis in company with earthed switch operating axis 2, the salient point 211 of cam is pushed down the horizontal segment 31 of blocking lever downwards, the thrust of cam 21 overcomes the pressure of back-moving spring 8, make blocking lever 3 be moved down into lowest limit point position, the slotted hole 541 that horizontal spacer pin 6 is moved down into bow-shaped support bottom, the vertical position of horizontal hyoplastron breach 42 is aimed at the vertical position of blocking lever necking segment 321, as Fig. 2, Fig. 5, Fig. 8, shown in Figure 9, because the diameter of blocking lever necking segment 321 is littler than breach 42 width of horizontal hyoplastron, blocking lever necking segment 321 can be deviate from (relative motion) from the breach 42 of horizontal hyoplastron, make horizontal hyoplastron 4 break away from the restriction of blocking lever 3, can freely open Xiamen 1 thus;
When high-tension switch cabinet generation burst devices fault, and earthed switch can't close a floodgate, when needing the emergency opening Xiamen again, available screwdriver is unscrewed screw 73, stir cover plate 7 with finger, can make cover plate 7 rotations until the handle hole 11 that exposes the Xiamen, then pass handle hole 11 on the Xiamen with screwdriver 10, make the screwdriver handle of a knife be positioned at Xiamen outside and the screwdriver end is positioned at the inside, Xiamen, as Figure 16, shown in Figure 17, magnetic attraction direction according to 6 pairs of screwdriver ends of horizontal spacer pin, the relative position of determined level spacer pin 6 and screwdriver end, under this magnetic attraction guiding and attracting, the screwdriver end is placed horizontal spacer pin top, as Figure 16, shown in Figure 17, screwdriver 10 is terminal toward pressing down, the horizontal spacer pin 6 of drive is toward pressing down, until the slotted hole 541 of horizontal spacer pin 6 contact bow-shaped supports bottom, make blocking lever 3 be moved down into lowest limit point position, make the vertical position of horizontal hyoplastron breach 42 aim at the vertical position of blocking lever necking segment 321, horizontal hyoplastron 4 can break away from the restriction of blocking lever 3, and Xiamen 1 can positive opening.After catastrophic failure is got rid of, need immediately the Xiamen to be shut again and interlocking device is restored to the original state.
Claims (2)
1. a high-tension switch cabinet Xiamen and earthed switch interlocking device, comprise cabinet, cabinet is provided with Xiamen, protective plate, earthed switch, earthed switch operating axis, Xiamen and protective plate are all perpendicular to horizontal plane, and Xiamen and protective plate are orthogonal, it is characterized in that: the coaxial cam that is fixedly connected with of earthed switch operating axis; When earthed switch operating axis drive earthed switch was in gate-dividing state, the salient point of cam turned to left side or the right side of the central axis of cam; When the earthed switch operating axis drives earthed switch and is in "on" position, the salient point of cam turn to cam central axis under;
At protective plate bow-shaped support is installed, bow-shaped support is provided with horizontal tail, following horizontal tail, the middle vertical wing, and last horizontal tail, following horizontal tail all have circular pilot hole, and two circular pilot holes are aimed at up and down; Can vertically be provided with blocking lever movably under cam, blocking lever is the L shaped of handstand, and the horizontal segment of blocking lever is positioned at vertical section top of blocking lever; Vertical section of blocking lever can be passed the circular pilot hole of horizontal tail, the circular pilot hole of following horizontal tail up and downly, and the horizontal segment of blocking lever is resisted against the cam surface below of cam;
Described Xiamen is fixedly connected with a horizontal hyoplastron, and horizontal hyoplastron end offers circular hole, and this circular hole edge is formed with breach; When the Xiamen was in closure state, described blocking lever is the circular hole of the horizontal hyoplastron of section aligning vertically; Blocking lever vertically the diameter of section less than the Circularhole diameter on the horizontal hyoplastron greater than the gap width on the horizontal hyoplastron; Be formed with the necking segment of one section reduced in the centre of the vertical section of blocking lever, the diameter of this necking segment is less than the gap width on the horizontal hyoplastron; Be fixedly connected with a horizontal spacer pin that has magnetic in the vertical section of blocking lever, the vertical wing offers slotted hole in the centre of bow-shaped support, and the length of slotted hole is to being vertical, and horizontal spacer pin passes this vertical slotted hole; Be provided with the back-moving spring of exerting pressure between the following horizontal tail of horizontal spacer pin and bow-shaped support, back-moving spring is enclosed within the vertically outside of section of blocking lever; When being moved down into lowest limit point position under the driving of blocking lever at cam, the slotted hole that horizontal spacer pin is moved down into bow-shaped support bottom, and the vertical position of horizontal hyoplastron breach is aimed at the vertical position of blocking lever necking segment; When being moved upwards up to upper limit (UL) point position under the effect of blocking lever at back-moving spring, horizontal spacer pin is moved upwards up to slotted hole the top of bow-shaped support, and the vertical position of the vertical position of horizontal hyoplastron breach and blocking lever necking segment staggers up and down;
Have handle hole in described Xiamen, the Xiamen also is rotatably mounted with a cover plate, and cover plate hides in the handle hole outside.
2. a high-tension switch cabinet Xiamen and earthed switch interlocking control method is characterized in that: adopt claim 1 described high-tension switch cabinet Xiamen and earthed switch interlocking device; When high voltage switchgear needs normal operation, rotate the earthed switch operating axis, make earthed switch be in gate-dividing state, the salient point of cam turns to the left of its central axis or right-hand in company with the earthed switch operating axis, blocking lever is moved upwards up to upper limit (UL) point position under the effect of back-moving spring, horizontal spacer pin is moved upwards up to slotted hole the top of bow-shaped support, the vertical position of horizontal hyoplastron breach and the vertical position of blocking lever necking segment are staggered up and down, the necking segment of blocking lever is in horizontal hyoplastron top, moving horizontally of blocking lever limit levels hyoplastron and Xiamen limited the Xiamen thus and opened;
When needs overhaul high voltage switchgear, rotate the earthed switch operating axis, make earthed switch be in "on" position, the salient point of cam turns to the below of its central axis in company with the earthed switch operating axis, the salient point of cam is pushed down the horizontal segment of blocking lever downwards, the thrust of cam overcomes the pressure of back-moving spring, make blocking lever be moved down into lowest limit point position, the slotted hole that horizontal spacer pin is moved down into bow-shaped support bottom, the vertical position of horizontal hyoplastron breach is aimed at the vertical position of blocking lever necking segment, can freely open the Xiamen thus;
When high voltage switchgear generation catastrophic failure, and earthed switch can't close a floodgate, when needing the emergency opening Xiamen, stir down door cover plate, make the cover plate rotation until the handle hole that exposes the Xiamen, then pass handle hole on the Xiamen with screwdriver, make the screwdriver handle of a knife be positioned at Xiamen outside and the screwdriver end is positioned at the inside, Xiamen, according to the magnetic attraction direction of horizontal spacer pin to the screwdriver end, the relative position of determined level spacer pin and screwdriver end, under the guiding and attraction of this magnetic attraction, the screwdriver end is placed horizontal spacer pin top, screwdriver is terminal toward pressing down, the horizontal spacer pin of drive is toward pressing down, until the slotted hole of horizontal spacer pin contact bow-shaped support bottom, make blocking lever be moved down into lowest limit point position, make the vertical position of horizontal hyoplastron breach aim at the vertical position of blocking lever necking segment, thus can the positive opening Xiamen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115111.2A CN103247467B (en) | 2013-04-06 | 2013-04-06 | Interlocking mechanism and interlocking control method for lower door of high-tension switch cabinet and earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310115111.2A CN103247467B (en) | 2013-04-06 | 2013-04-06 | Interlocking mechanism and interlocking control method for lower door of high-tension switch cabinet and earthing switch |
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| Publication Number | Publication Date |
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| CN103247467A true CN103247467A (en) | 2013-08-14 |
| CN103247467B CN103247467B (en) | 2015-03-25 |
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| CN201310115111.2A Expired - Fee Related CN103247467B (en) | 2013-04-06 | 2013-04-06 | Interlocking mechanism and interlocking control method for lower door of high-tension switch cabinet and earthing switch |
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| US20150102608A1 (en) * | 2013-10-16 | 2015-04-16 | Lsis Co., Ltd. | Door interlock device for transformer room of vacuum circuit breaker |
| CN105071238A (en) * | 2015-07-30 | 2015-11-18 | 广西南宝特电气制造有限公司 | Anti-error operation mechanism of low-voltage fixed type switchgear |
| CN107069464A (en) * | 2017-06-06 | 2017-08-18 | 信阳师范学院 | Switch cubicle and its cabinet door interlock |
| CN108807038A (en) * | 2018-06-28 | 2018-11-13 | 上海万控柜架有限公司 | A kind of lower door interlocking mechanism |
| CN109250778A (en) * | 2018-11-29 | 2019-01-22 | 陈韬宇 | A kind of kettle that can filter raw water |
| CN110994434A (en) * | 2020-02-09 | 2020-04-10 | 广东正超电气有限公司 | Anti-arcing mounting structure for cable chamber door of ring main unit |
| CN112002577A (en) * | 2020-09-12 | 2020-11-27 | 广东正超电气有限公司 | Locking control structure of high-voltage switch cabinet |
| CN112509835A (en) * | 2020-09-25 | 2021-03-16 | 河南平高通用电气有限公司 | Interlocking device of grounding switch and front lower door in switch cabinet and switch cabinet |
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| US20100294629A1 (en) * | 2009-05-21 | 2010-11-25 | Ls Industrial Systems Co., Ltd. | Move-out type interlock apparatus for circuit breaker |
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