CN201584677U - Interlocking device between earthing switch and breaker of switch cabinet - Google Patents
Interlocking device between earthing switch and breaker of switch cabinet Download PDFInfo
- Publication number
- CN201584677U CN201584677U CN2009202828020U CN200920282802U CN201584677U CN 201584677 U CN201584677 U CN 201584677U CN 2009202828020 U CN2009202828020 U CN 2009202828020U CN 200920282802 U CN200920282802 U CN 200920282802U CN 201584677 U CN201584677 U CN 201584677U
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- slide block
- screw shaft
- lead screw
- switch cubicle
- switch
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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 an earthing switch and a breaker of a switch cabinet, which comprises a screw shaft and a slide block, wherein the screw shaft and the slide block are both longitudinally arranged in the switch cabinet, the screw shaft is movably arranged on the inner side surface of the switch cabinet, the slide block is movably arranged on the inner bottom surface of the switch cabinet, a sliding push rod is arranged between the screw shaft and the slide block, the upper end of the sliding push rod is in threaded connection with the screw shaft, the lower end of the sliding push rod is fixedly connected with the slide block, and the inner bottom surface of the switch cabinet is provided with transverse front and rear interlocking arms which are respectively and correspondingly positioned one side of the first bump and one side of the second bump of the slide block; and the front and the rear interlocking arms are movably connected with the inner bottom surface of the switch cabinet, the front and the rear interlocking arms can respectively move transversely along the bevel edges of the first bump and the second bump, and the interlocking device has reasonable and simple structure, is operated conveniently, and greatly improves the safety of the switch cabinet.
Description
Technical field
The utility model relates to a kind of interlock, and particularly a kind of earthed switch of high-tension switch cabinet and the anti-misoperation interlock between circuit breaker belong to the technical field of switch cubicle accessory.
Background technology
Switch cubicle is a kind of equipment for power transmission and distribution, and therefore, its security requirement is higher.In order to guarantee operating personnel's personal safety, when breaker closing, switch cubicle "on" position, earthed switch locks by interlock, does not allow operation; Circuit breaker is in to be extracted out or test position, and when earthed switch combined floodgate, switch cubicle outage service mode, the circuit breaker dolly locks by interlock, does not allow operation.Mutual interlock between earthed switch and circuit breaker is one of crucial in the complete switch equipment " five is anti-chain " device, is used to prevent that splice grafting ground switch from sending electricity or charged splice grafting ground switch.Do not have reliable linkage structure just can't protect personnel's safety, thus the quality of its quality, mechanical performance, structure rationally, be directly connected to the fail safe of complete switch equipment operation.
The circuit breaker of tradition anti-misoperation or barbarous operation is chain with grounding system, and main employing has following three kinds of modes: electromagnetic lock lock operation axle mode, the soft linkage mode of shutoff breaker operator route, mid-block stop the handcart propulsion mode by force.The electromagnetic lock mode, external environmental factor is bigger to its influence, and the high-intensity magnetic field of controller switching equipment disturbs electromagnetic lock easily, and under the improper dead electricity situation of secondary power supply, chain inefficacy can cause misoperation, and it is unreliable to use, and has influenced the fail safe of switch cubicle; Though soft linkage mode is simple, very high to the required precision that product component and cabinet are installed, there is the deviation will clamping stagnation slightly, complex operation, and influence the fail safe of switch cubicle; Mid-block stops the handcart propulsion mode by force, though this kind mode is simple and convenient, circuit breaker is in driving into process, and leading screw is powerful drives into strength, is enough to allow the part distortion that stopper is installed be stepped down, and it is unreliable to use.These modes all can reduce the reliability and the fail safe of switchgear, threaten personal safety.
The content of utility model
Problem to be solved in the utility model provides a kind of earthed switch of switch cubicle and the interlock between circuit breaker, and this interlock is rational in infrastructure, simple, easy to operate, and has improved the fail safe of switch cubicle greatly.
In order to solve the problems of the technologies described above, the earthed switch of a kind of switch cubicle of the utility model and the interlock between circuit breaker, comprise lead screw shaft, slide block, described lead screw shaft and described slide block all vertically are arranged in the described switch cubicle, being arranged on the described switch cubicle medial surface of described lead screw shaft activity, described slide block is mobilizable to be arranged on the described switch cubicle inner bottom surface, be provided with a pusher between described lead screw shaft and the slide block, described pusher upper end is threaded with described lead screw shaft, fixedly connected with described slide block in the lower end, before described switch cubicle inner bottom surface is provided with laterally, the back chain arm, described before, the chain arm in back is positioned at a side of first projection and second projection of described slide block respectively accordingly; Described forward and backward chain arm and described movable connection of switch cubicle inner bottom surface, described forward and backward chain arm can be laterally mobile along the hypotenuse of corresponding first, second projection respectively.
The earthed switch of above-mentioned a kind of switch cubicle and the interlock between circuit breaker, wherein, one end of described forward and backward chain arm is respectively equipped with a reset tension spring, described reset tension spring one end is fixedlyed connected with an end of corresponding described forward and backward chain arm respectively, and the other end is fixedlyed connected with the medial surface of described switch cubicle.
The earthed switch of above-mentioned a kind of switch cubicle and the interlock between circuit breaker, wherein, the periphery of described lead screw shaft is fixed with a spacing axle sleeve, and described spacing axle sleeve is fixed in the tail end of the threaded portion of described lead screw shaft.
The earthed switch of above-mentioned a kind of switch cubicle and the interlock between circuit breaker wherein, are fixed with an axis of guide on the described pusher, the described axis of guide is fixed on the described lead screw shaft mount pad, and the described pusher and the axis of guide are slidingly connected.
The earthed switch of above-mentioned a kind of switch cubicle and the interlock between circuit breaker, wherein, described slide block is connected by shifting fork mechanism with described pusher, described shifting fork mechanism comprises the shift fork of fixedlying connected with described pusher, the projection that is fixedly installed on the vertical direction extension on the described slide block, described shift fork tail end is fixedlyed connected with described pusher, and the openend of shift fork and described projection clamping are integral.
The utility model can be realized following beneficial effect:
1, because the utility model comprises lead screw shaft, slide block, lead screw shaft and slide block link into an integrated entity by pusher, wherein, lead screw shaft and pusher form drives motion device, with the lead screw shaft is main transmission, under the drive of pusher, drive slide block and do vertically moving of front and back along switch cubicle, before, the chain arm in back is respectively at slide block first, under the promotion of second projection, along first, the hypotenuse of second projection is done laterally moving along about the switch cubicle, when earthed switch is closed (when circuit breaker is in off position), the rotational lead screw axle, before making, the chain arm in back is positioned at first, the upper end of second projection, chain arm blocks the front vehicle wheel of circuit breaker before allowing, and prevents misoperation under the state of earthed switch closure of circuit breaker; When circuit breaker is in running order, the rear wheel of circuit breaker is resisted against on the chain arm in described back, the chain arm in back can't be moved laterally along the hypotenuse of second projection, thereby this interlock is pinned, prevent ground connection beginning misoperation under working state of circuit breaker, therefore, improved the fail safe of switch cubicle greatly; And the utility model is made up of several parts, and is simple and reasonable for structure; During operation, only need the rotational lead screw axle to get final product, easy to operate.
2, because an end of described forward and backward chain arm is respectively equipped with a reset tension spring, when earthed switch disconnected, when slide block shifted out, described forward and backward chain arm automatically reset under the pulling force of corresponding reset tension spring, uses convenient.
3, owing to be fixed with a spacing axle sleeve on the described lead screw shaft, the rotational lead screw axle, when pusher being moved by screw thread, can prevent that the rotational lead screw axle is too much, make the disconnection that is threaded of lead screw shaft and pusher, or make forward and backward chain arm miss the service position, not only help control of the present utility model, and made things convenient for use.
4, since described slide block and described pusher link into an integrated entity by shifting fork mechanism, therefore, not only ensuring smooth transmission, and structure is simpler.
5, owing to lower end in the pusher is fixed with an axis of guide, the rotational lead screw axle, when by screw thread pusher being moved, under the guiding of the axis of guide, the pusher motion is flexible, light, chain more reliable.
Description of drawings
Fig. 1 is the structural representation of the utility model circuit breaker when being in off position
Fig. 2 is the plan structure schematic diagram of the utility model circuit breaker when in running order
Fig. 3 is an installation site of the present utility model schematic diagram
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
In order to solve the problems of the technologies described above, the earthed switch of a kind of switch cubicle of the utility model and the interlock between circuit breaker, comprise lead screw shaft 2, slide block 7, described lead screw shaft 2 is the multidiameter that a periphery is provided with threaded portion 200, slide block 7 is that an outer surface is provided with horizontal expansion first, second projection 71,72 strip component, described lead screw shaft 2 and described slide block 7 all vertically are arranged in the described switch cubicle 30, on the medial surface that is arranged on described switch cubicle of described lead screw shaft 2 by lead screw shaft mount pad 1 and location axle sleeve 15 or other mode activities, earlier lead screw shaft 2 is passed lead screw shaft mount pad 1, with location axle sleeve 15 that lead screw shaft 2 is fixing again, make lead screw shaft 2 rotatable, described slide block 7 is by on the mobilizable inner bottom surface that is arranged on described switch cubicle of fairlead 21 or other modes, fairlead 21 is fixedly installed on the switch cubicle bottom surface, fairlead 21 is passed at described slide block two ends respectively, slide block 7 can be vertically moved along the switch cubicle inner bottom surface, be provided with a pusher 3 between described lead screw shaft 2 and the slide block 7, described pusher 3 upper ends are provided with installing hole, described installing hole inwall is established T type checknut, during installation, lead screw shaft 2 is passed the installing hole of pusher 3, screw thread by installing hole matches with the threaded portion of lead screw shaft, thereby the upper end of lead screw shaft 2 with pusher 3 linked into an integrated entity; Fixedly connected with described slide block 7 in the lower end of pusher 3, middle by the axis of guide 4 guiding; Described switch cubicle inner bottom surface laterally is provided with forward and backward chain arm 5,6, and described forward and backward chain arm 5,6 is positioned at a side of first projection 71 and second projection 72 of described slide block respectively accordingly; Described forward and backward chain arm 5,6 is by on the described switch cubicle inner bottom surface of being arranged on of connector 8 movable connections, connector 8 can be guide rail, also can be a few word members, described forward and backward chain arm 5,6 can be laterally mobile along the hypotenuse of corresponding first, second projection 71,72 respectively.When earthed switch is closed (when circuit breaker is in off position), clockwise rotate lead screw shaft 2, pusher 3 is moved in switch cabinet, drive slide block 7 by pusher 3 and do motion in the same way, forward and backward chain arm 5,6 moves laterally under the hypotenuse effect of first, second projection 71,72, make forward and backward chain arm 5,6 be positioned at the upper end of first, second projection 71,72, chain arm 5 blocks the front vehicle wheel of circuit breaker before allowing, and prevents misoperation under the state of earthed switch closure of circuit breaker; When circuit breaker is in running order, the rear wheel of circuit breaker is resisted against on the chain arm 6 in described back, the chain arm 6 in back can't be moved laterally along the hypotenuse of second projection 72, thereby this interlock is pinned, prevent earthed switch misoperation under working state of circuit breaker, therefore, improved the fail safe of switch cubicle greatly; And the utility model is made up of several parts, and is simple and reasonable for structure; During operation, only need the rotational lead screw axle to get final product, easy to operate.
For easy to use, can be respectively equipped with a reset tension spring 9 at an end of described forward and backward chain arm 5,6, described reset tension spring 9 one ends are fixedlyed connected with an end of corresponding described forward and backward chain arm 5,6 respectively, the other end is by extension spring link plate 12 or other modes or directly fixedly connected with the medial surface 301 of described switch cubicle, because an end of described forward and backward chain arm 5,6 is respectively equipped with a reset tension spring 9, when earthed switch disconnects, when slide block 7 shifts out, described forward and backward chain arm 5,6 automatically resets under the pulling force of corresponding reset tension spring 9, uses convenient.
For convenience the utility model is controlled, can be fixed with a spacing axle sleeve 10 in described lead screw shaft 2 peripheries, described spacing axle sleeve 10 is fixed in the tail end of the threaded portion 200 of described lead screw shaft 2, owing to be fixed with a spacing axle sleeve 10 on the described lead screw shaft 2, when rotational lead screw axle 2 moves pusher 3 by screw thread, can prevent that rotational lead screw axle 2 is too much, make the disconnection that is threaded of lead screw shaft 2 and pusher 3, or make forward and backward chain arm 5,6 miss the service position, not only help control of the present utility model, and made things convenient for use.
For slide block 7 is connected with pusher 3 flexibly, described slide block 7 and described pusher 3 can be connected by shifting fork mechanism, described shifting fork mechanism comprises the shift fork 20 of fixedlying connected with described pusher 3, the projection 70 that is fixedly installed on the vertical direction extension on the described slide block 7, described shift fork 20 tail ends are fixedlyed connected with described pusher 3 lower ends, the openend of shift fork 20 and 70 clampings of described projection are integral, because described slide block 7 and described pusher 3 link into an integrated entity by shifting fork mechanism, therefore, not only ensuring smooth transmission, and structure is simpler.
In order to make pusher 3 motions steadily, reliably, in the middle lower end of described pusher 3 axis of guide 4 is set, the described axis of guide 4 is installed on the described lead screw shaft mount pad 1, described pusher 3 is slidingly connected with the axis of guide 4, described pusher 3 vertically moves in the guiding and the spacing front and back down of the axis of guide 4, prevent pusher 3 clamping stagnations or skew, so pusher 3 motions flexibly, reliably.
Operation principle of the present utility model: as shown in Figure 1, circuit breaker is in extracts position or test position out, when clockwise rotating lead screw shaft 2, pusher 3 past cabinet rears are to moving horizontally, move horizontally in the same way by connecting shift fork 20 drive slide blocks 7, the chain arm 6 of chain arm 5 and back begins to vertically move under the effect of slide block 7 before this moment, extension spring begins to stretch, when pusher 3 moves to spacing axle sleeve 10, earthed switch closes a floodgate, and the chain arm 6 in preceding chain arm 5 and back arrives service position (dead ahead of circuit breaker wheel), and preceding chain arm 5 pins circuit breaker dolly front-wheel, realize splice grafting ground device, anti-misoperation circuit breaker chain; As shown in Figure 2, when circuit breaker during in the service position, the rear wheel of circuit breaker blocks the chain arm 6 in back, it can't be moved, and slide block 7 and pusher 3 are by corresponding pinning, and lead screw shaft 2 is lockable, earthing device can't be operated, and has realized preventing the reverse chain of misoperation earthing device under the charged situation.This installs chain arm and adopts the rectangle square steel, the intensity height, and the system stiffness height, principle is simple, and anti-misoperation is chain reliable, has fully guaranteed the fail safe of system's operation, has realized " five is anti-chain ", has guaranteed operating personnel's personal safety.
In sum, the utility model building block is few, and assembling is simple, locking system rigidity height, and shearing resistance, non-deformability are strong, reliable lock, rational in infrastructure, easy to operate, the fail safe that has improved equipment operation.
The utility model is not limited to above-mentioned enforcement, and all employings are equal to replaces formed technical scheme, all drops in the protection range of the present utility model.
Claims (4)
1. the earthed switch of a switch cubicle and the interlock between circuit breaker, it is characterized in that, comprise lead screw shaft, slide block, described lead screw shaft and described slide block all vertically are arranged in the described switch cubicle, being arranged on the described switch cubicle medial surface of described lead screw shaft activity, described slide block is mobilizable to be arranged on the described switch cubicle inner bottom surface, be provided with a pusher between described lead screw shaft and the slide block, described pusher upper end is threaded with described lead screw shaft, fixedly connected with described slide block in the lower end, before described switch cubicle inner bottom surface is provided with laterally, the back chain arm, described before, the chain arm in back is positioned at a side of first projection and second projection of described slide block respectively accordingly; Described forward and backward chain arm and described movable connection of switch cubicle inner bottom surface, described forward and backward chain arm can be laterally mobile along the hypotenuse of corresponding first, second projection respectively.
2. a kind of earthed switch of switch cubicle and the interlock between circuit breaker according to claim 1, it is characterized in that, one end of described forward and backward chain arm is respectively equipped with a reset tension spring, described reset tension spring one end is fixedlyed connected with an end of corresponding described forward and backward chain arm respectively, and the other end is fixedlyed connected with the medial surface of described switch cubicle.
3. a kind of earthed switch of switch cubicle and the interlock between circuit breaker according to claim 1 is characterized in that the periphery of described lead screw shaft is fixed with a spacing axle sleeve, and described spacing axle sleeve is fixed in the tail end of the threaded portion of described lead screw shaft.
4. as the earthed switch of a kind of switch cubicle as described in the claim 1,2 or 3 and the interlock between circuit breaker, it is characterized in that, described slide block is connected by shifting fork mechanism with described pusher, the projection that the vertical direction that described shifting fork mechanism comprises the shift fork of fixedlying connected with described pusher, be fixedly installed on described slide block is extended, described shift fork tail end is fixedlyed connected with described pusher lower end, and the openend of shift fork and described projection clamping are integral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828020U CN201584677U (en) | 2009-12-23 | 2009-12-23 | Interlocking device between earthing switch and breaker of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828020U CN201584677U (en) | 2009-12-23 | 2009-12-23 | Interlocking device between earthing switch and breaker of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584677U true CN201584677U (en) | 2010-09-15 |
Family
ID=42726689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202828020U Expired - Fee Related CN201584677U (en) | 2009-12-23 | 2009-12-23 | Interlocking device between earthing switch and breaker of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584677U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474895A (en) * | 2013-08-31 | 2013-12-25 | 山东亿阳电工有限公司 | Device for preventing operation of grounding switch of switch cabinet |
| CN104485598A (en) * | 2014-12-31 | 2015-04-01 | 无锡军工智能电气股份有限公司 | Intelligent explosive-proof cabinet grounding system |
-
2009
- 2009-12-23 CN CN2009202828020U patent/CN201584677U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103474895A (en) * | 2013-08-31 | 2013-12-25 | 山东亿阳电工有限公司 | Device for preventing operation of grounding switch of switch cabinet |
| CN103474895B (en) * | 2013-08-31 | 2015-07-01 | 山东亿阳电工有限公司 | Device for preventing operation of grounding switch of switch cabinet |
| CN104485598A (en) * | 2014-12-31 | 2015-04-01 | 无锡军工智能电气股份有限公司 | Intelligent explosive-proof cabinet grounding system |
| CN104485598B (en) * | 2014-12-31 | 2016-10-12 | 无锡军工智能电气股份有限公司 | Intelligent anti-explosive cabinet earthed system |
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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: 20100915 Termination date: 20181223 |