CN203179776U - High voltage switch cabinet lower door and grounding switch interlock mechanism - Google Patents
High voltage switch cabinet lower door and grounding switch interlock mechanism Download PDFInfo
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- CN203179776U CN203179776U CN 201320134522 CN201320134522U CN203179776U CN 203179776 U CN203179776 U CN 203179776U CN 201320134522 CN201320134522 CN 201320134522 CN 201320134522 U CN201320134522 U CN 201320134522U CN 203179776 U CN203179776 U CN 203179776U
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- blocking lever
- xiamen
- cam
- hyoplastron
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Abstract
The utility model relates to a high voltage switch cabinet lower door and grounding switch interlock mechanism. The high voltage switch cabinet lower door and grounding switch interlock mechanism comprises a cabinet, wherein the cabinet is provided with a lower door, a protection plate, a grounding switch and a grounding switch operation shaft, wherein the grounding switch operation shaft is in coaxially fixed connection with a cam, the protection plate is equipped with an arc support, a lower portion of the cam is provided with an interlock rod, a horizontal segment of the interlock rod presses against a lower portion of a surface of the cam, the lower door is in fixed connection with a horizontal tongue plate, an tail end of the horizontal plate is provided with a circular hole, an edge of the circular hole forms a notch, a diameter of the interlock rod in a vertical segment is smaller than a diameter of the circular hole on the horizontal tongue plate and is greater than width of the notch on the horizontal tongue plate, a diameter of the interlock rod at a necking segment is smaller than width of the notch on the horizontal tongue plate, the vertical segment of the interlock rod is in fixed connection with a horizontal limit pin, and a reset spring which is used for pressure exertion is arranged between the horizontal limit pin and the arc support. The high voltage switch cabinet lower door and grounding switch interlock mechanism has properties of simple structure, convenient mounting and reliable interlock and can realize rapid opening of the lower door under emergency.
Description
Technical field
The utility model belongs to the technical field of high voltage switchgear, is specifically related to a kind of high-tension switch cabinet Xiamen and earthed switch interlocking device.
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 overhauled equipment, after switch had a power failure, operational grounding switching manipulation axle outside cabinet made the interior earthed switch of cabinet be in "on" position, i.e. cabinet inside safety ground, and this moment, the cabinet Xiamen just can be opened; In addition, when equipment generation catastrophic failure, and earthed switch can't close a floodgate in particular cases, should have the emergency release mode can open the cabinet Xiamen rapidly.
The utility model content
The purpose of this utility model is to provide a kind of high-tension switch cabinet Xiamen and earthed switch interlocking device, and it is simple in structure, and is easy for installation, and interlocking is reliable.
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; Be provided with blocking lever below 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, the vertical section of described blocking lever was also passed the circular hole of horizontal hyoplastron; 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 in the vertical section of blocking lever, the vertical wing offers vertical slotted hole in the centre of bow-shaped support, 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 blocking lever when the driving of cam is moved to lowest point, the vertical position of horizontal hyoplastron breach is aimed at the vertical position of blocking lever necking segment; When blocking lever when the effect of back-moving spring is moved to the peak position, the vertical position of the vertical position of horizontal hyoplastron breach and blocking lever necking segment staggers up and down.
Have slotted hole in described Xiamen, be rotatably mounted with a cover plate in this slotted hole outside, the end of cover plate is provided with the strip breach, on described Xiamen, also offer screw, the position of screw is corresponding with the position of strip breach, be screwed a screw in screw, the screw cap of screw is pressed in the strip gap edge of cover plate.
The utlity model has following advantage 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 is aimed at the vertical position of blocking lever necking segment, 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 voltage switchgear 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 handling, available hand is unscrewed screw, stir cover plate with finger, can make the cover plate rotation until the slotted hole that exposes the Xiamen, then pass slotted hole on the Xiamen with screwdriver, with horizontal spacer pin toward pressing down, aim at horizontal hyoplastron breach until the vertical position of blocking lever necking segment, 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 utility model is simple in structure, and is easy for installation, and interlocking is reliable, is not easy to occur mechanical breakdowns such as stuck.
Description of drawings
Structural representation when Fig. 1 is the utility model earthed switch separating brake (except Xiamen and the horizontal hyoplastron).
Structural representation (except Xiamen and the horizontal hyoplastron) when Fig. 2 is the utility model earthed switch combined floodgate.
Structural representation when Fig. 3 is the utility model earthed switch separating brake (comprising Xiamen and horizontal hyoplastron).
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 utility model when carrying out the emergency release state.
Figure 17 is the plan structure schematic diagram of state shown in Figure 16.
Embodiment
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 are provided with blocking lever 3 below cam 21, 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, the vertical section 32 of described blocking lever was also passed the circular hole 41 of horizontal hyoplastron.
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 in the vertical section 32 of blocking lever, the vertical wing 54 offers vertical slotted hole 541 in the centre of bow-shaped support, 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 when the driving of cam 21 is moved to lowest point, 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 when the effect of back-moving spring 8 is moved to the peak position, the vertical position of the vertical position of horizontal hyoplastron breach 42 and blocking lever necking segment 321 staggers, 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 slotted hole 11 in described Xiamen 1, in these slotted hole 11 outsides one cover plate 7 are installed, and cover plate 7 can rotate around a horizontal rotating shaft 70, and 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.
Above-described embodiment use principle is as follows:
When earthed switch is in "on" position, the salient point of cam 21 turns to the below of its central axis in company with earthed switch operating axis 2, the salient point of cam 21 is pushed down the horizontal segment of blocking lever 3 downwards, make blocking lever 3 and horizontal spacer pin 6 go downwards to lowest order, back-moving spring 8 is compressed, 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, shown in Figure 8, because the diameter of blocking lever necking segment is littler than the gap 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 break away from the restriction of blocking lever, Xiamen 1 can freely be opened.
When earthed switch is in gate-dividing state, the salient point of cam 21 turns to the right-hand of its central axis in company with earthed switch operating axis 2, blocking lever 3 is at the highest notch under the effect of back-moving spring 8, the vertical section 32 of blocking lever is in the circular hole of horizontal hyoplastron, the necking segment 321 of blocking lever is in horizontal hyoplastron 4 tops, the vertical position of the vertical position of horizontal hyoplastron breach and blocking lever necking segment 321 staggers, 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 can not be deviate from (relative motion of horizontal direction) from the breach level of horizontal hyoplastron 4, horizontal hyoplastron 4 is limited and can't move horizontally by blocking lever, and horizontal hyoplastron 4 is connected to one with Xiamen 1, therefore the Xiamen can't be opened.
Figure 16, shown in Figure 17, when appearring in equipment, catastrophic failure need open Xiamen 1 fast when handling, can unscrew screw 73, stir cover plate 7 with finger, cover plate 7 rotations are rotated until the slotted hole 11 that exposes the Xiamen around horizontal rotating shaft, then pass slotted hole 11 on the Xiamen with screwdriver 10, utilize the end of screwdriver 10 with horizontal spacer pin 6 past pressing down, aim at horizontal hyoplastron breach 42 until the vertical position of blocking lever necking segment 321, because the diameter of blocking lever necking segment 321 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 Xiamen 1 can freely be opened.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 includes 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; Be provided with blocking lever below 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, the vertical section of described blocking lever was also passed the circular hole of horizontal hyoplastron; 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 in the vertical section of blocking lever, the vertical wing offers vertical slotted hole in the centre of bow-shaped support, 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 blocking lever when the driving of cam is moved to lowest point, the vertical position of horizontal hyoplastron breach is aimed at the vertical position of blocking lever necking segment; When blocking lever when the effect of back-moving spring is moved to the peak position, the vertical position of the vertical position of horizontal hyoplastron breach and blocking lever necking segment staggers up and down.
2. high-tension switch cabinet Xiamen according to claim 1 and earthed switch interlocking device, it is characterized in that: have slotted hole in described Xiamen, be rotatably mounted with a cover plate in this slotted hole outside, the end of cover plate is provided with the strip breach, on described Xiamen, also offer screw, the position of screw is corresponding with the position of strip breach, has been screwed a screw in screw, and the screw cap of screw is pressed in the strip gap edge of cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134522 CN203179776U (en) | 2013-03-23 | 2013-03-23 | High voltage switch cabinet lower door and grounding switch interlock mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320134522 CN203179776U (en) | 2013-03-23 | 2013-03-23 | High voltage switch cabinet lower door and grounding switch interlock mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179776U true CN203179776U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320134522 Expired - Fee Related CN203179776U (en) | 2013-03-23 | 2013-03-23 | High voltage switch cabinet lower door and grounding switch interlock mechanism |
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| CN (1) | CN203179776U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128841A (en) * | 2016-08-26 | 2016-11-16 | 江苏天翔电气有限公司 | A kind of switch cabinet earthed switch backlocking device |
| 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 |
| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
| CN108386090A (en) * | 2018-05-09 | 2018-08-10 | 国网冀北电力有限公司管理培训中心 | The windproof blocking device of building door |
| CN108899243A (en) * | 2018-07-05 | 2018-11-27 | 泰豪科技(深圳)电力技术有限公司 | Interlocking mechanism and high-tension switch gear |
-
2013
- 2013-03-23 CN CN 201320134522 patent/CN203179776U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106128841A (en) * | 2016-08-26 | 2016-11-16 | 江苏天翔电气有限公司 | A kind of switch cabinet earthed switch backlocking device |
| CN106128841B (en) * | 2016-08-26 | 2018-10-02 | 江苏天翔电气有限公司 | A kind of switch cabinet earthing switch backlocking device |
| 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 |
| CN107731591A (en) * | 2017-11-24 | 2018-02-23 | 彭显刚 | A kind of ring main unit five-prevention interlocking device |
| CN108386090A (en) * | 2018-05-09 | 2018-08-10 | 国网冀北电力有限公司管理培训中心 | The windproof blocking device of building door |
| CN108386090B (en) * | 2018-05-09 | 2024-01-23 | 国网冀北电力有限公司管理培训中心 | Windproof locking device for building door |
| CN108899243A (en) * | 2018-07-05 | 2018-11-27 | 泰豪科技(深圳)电力技术有限公司 | Interlocking mechanism and high-tension switch gear |
| CN108899243B (en) * | 2018-07-05 | 2024-04-02 | 泰豪科技(深圳)电力技术有限公司 | Interlocking mechanism and high-voltage switch equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20190323 |