CN103295828B - Side-mounted type indoor high-voltage isolating switch - Google Patents
Side-mounted type indoor high-voltage isolating switch Download PDFInfo
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- CN103295828B CN103295828B CN201310252874.1A CN201310252874A CN103295828B CN 103295828 B CN103295828 B CN 103295828B CN 201310252874 A CN201310252874 A CN 201310252874A CN 103295828 B CN103295828 B CN 103295828B
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- touch knife
- isolating switch
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Abstract
The invention discloses a side-mounted type indoor high-voltage isolating switch. The side-mounted type indoor high-voltage isolating switch comprises an installing chassis, a supporting insulator, an upper stationary contact, a lower stationary contact, a movable contact knife, a movable contact knife rotary shaft, a grounding contact and an operating mechanism, wherein the operating mechanism is arranged on one side of the installing chassis, a T-shaped rod is arranged in the tubular shaft end of the movable contact knife rotary shaft, the tubular shaft end of the movable contact knife rotary shaft is connected with a limiting block fixed on a positioning frame through the T-shaped rod, and the positioning frame is fixed on a side wall of a high-voltage switch cabinet. A safety poking plate is movably arranged on the inner side of the side wall of the high-voltage switch cabinet. The side-mounted type indoor high-voltage isolating switch is compact in structure, low in manufacture cost and simple and convenient to operate and has few parts. Integration of isolating and grounding switches is achieved, and a safety distance in a vacuum looped network cabinet is increased. The operating mechanism has a reliable electrical linkage function, and when the movable contact knife rotates and is locked at different positions, a switching-on or switching-off or grounding function can be achieved, and the reliability and the safety of an electrical device in operation are greatly improved.
Description
Technical field
The present invention relates to a kind of high voltage isolator, particularly relate to a kind of operating mechanism and be contained in indoor high-voltage isolating switch outside high voltage control cabinet, belong to high voltage electrical apparatus technical field.
Background technology
Current vacuum looped network equipment inner high voltage isolating switch adopts Split type structure, and isolating switch and earthed switch are arranged respectively, cause narrow space in looped network equipment, makes troubles looped network plant maintenance or maintenance to when.In order to meet the development of Modern vacuum ring main unit, need one both to have combined floodgate, separating brake function, the indoor high-voltage isolating switch again with grounding function is supporting with it.The application for a patent for invention prospectus of CN102426965 discloses a kind of high-voltage alternating current isolating switch and earthed switch combination, this switch combination is provided with isolating switch operating mechanism and earthed switch operating mechanism respectively, wherein isolating switch operating mechanism rotarily drives by ball screw the axle sleeve screwed with it and moves, promote moving contact movement vertically and realize separating brake or combined floodgate actuating, separately have special earthed switch operating mechanism to realize the ground connection actuating of high-voltage alternating current isolating switch.This switch combination is provided with two cover operating mechanisms respectively to realize the separating brake of high voltage isolator or combined floodgate or ground connection, and complex structure, adds fault odds; Adopt expensive ball screw axle sleeve transmission device to realize the movement of moving contact, increase manufacturing cost.
Summary of the invention
The object of this invention is to provide a kind of compact conformation, cost low, non-maintaining and there is the side-mounted indoor high-voltage isolating switch of reliable grounding function, improve high-tension switch cabinet reliability of operation and fail safe.
The present invention is achieved by the following technical programs:
A kind of side-mounted indoor high-voltage isolating switch, comprise and underframe, the supporting insulator arranged in groups, upper static contact, lower fixed contact, movable touch knife and movable touch knife rotating shaft are installed, become the supporting insulator of a group to become three rows side by side up and down, be separately positioned between upper static contact and installation underframe or between lower fixed contact and installation underframe; Also comprise grounding contact corresponding with three movable touch knifes respectively and operating mechanism, three the movable touch knife lower ends be arranged side by side are fixed in movable touch knife rotating shaft, separate respectively by insulator between movable touch knife lower end, between movable touch knife and the support axle journal of movable touch knife rotating shaft, the support axle journal at movable touch knife rotating shaft two ends is hinged with installation underframe both sides respectively; Operating mechanism is arranged on installs underframe side, comprise electric control lock, control housing, locating rack, safe plate, guide vane end stop and actuating handle, the support axle journal of movable touch knife rotating shaft one end extends tubular axle head, described tubular axle head passes vertically disposed installation underframe and locating rack, with to be arranged on the operating grip punch position controlled on housing corresponding; T-shaped bar is arranged in tubular axle head, and tubular axle head is connected with the guide vane end stop be fixed on inside locating rack by T-shaped bar, and locating rack is fixed on to be installed on underframe sidewall; Control housing and cover locating rack and guide vane end stop, safe plate is arranged on movably and controls on case inside, and electric control lock is fixed on and controls housing upper end, and the transverse end of safe plate passes the elongated slot controlling housing sidewall; During side-mounted indoor high-voltage isolating switch inoperation, safe plate is in latched position, and the locking bolt whereabouts locked secure plate of electric control lock, operating grip perforation has been blocked in safe plate one end.
Object of the present invention can also be realized further by following technical measures.
Aforesaid side-mounted indoor high-voltage isolating switch, wherein movable touch knife lower end extends mutually perpendicular first disjunctor contact and the second disjunctor contact respectively, when movable touch knife turns to plumbness, upper static contact is connected with lower fixed contact by movable touch knife, the first disjunctor contact, and indoor high-voltage isolating switch is in "on" position; When movable touch knife turns to level, lower fixed contact is connected with grounding contact by the second disjunctor contact, movable touch knife, and high-tension switch cabinet is in the ground state that can carry out overhauling; Movable touch knife turn to install underframe become α=56 ° ~ 60 ° of acute angles time, the first disjunctor contact or the second disjunctor contact all do not contact with lower fixed contact, and indoor high-voltage isolating switch is in gate-dividing state.
Aforesaid side-mounted indoor high-voltage isolating switch, wherein said upper static contact and grounding contact are all in sheet shape, and lower fixed contact takes the shape of the letter U, the first disjunctor contact and the second disjunctor contact all cylindrical, movable touch knife upper end is fork-shaped; When indoor high-voltage isolating switch closes a floodgate, the sheet shape end of upper static contact is stuck in the forked end of movable touch knife; First disjunctor contact is stuck in the U-shaped end of lower fixed contact; When indoor high-voltage isolating switch is in ground state, the sheet shape end of grounding contact is stuck in the forked end of movable touch knife, and the second disjunctor contact is stuck in the U-shaped end of lower fixed contact.
Aforesaid side-mounted indoor high-voltage isolating switch, the tubular axle head of wherein movable touch knife rotating shaft is provided with axial elongated slot, and the cross bar of T-shaped bar passes axial elongated slot, and the tubular axle head of movable touch knife rotating shaft puts in guide vane end stop; When indoor high-voltage isolating switch is in the position of combined floodgate or separating brake or ground connection, the cross bar of T-shaped bar is stuck in the guide vane end stop axial groove of correspondence position, is locked in by movable touch knife on the position of combined floodgate or separating brake or ground connection.
Aforesaid side-mounted indoor high-voltage isolating switch, one end area of wherein said safe plate is greater than operating grip perforation, the other end of safe plate has about a pair parallel guiding elongated slot, vertically extend bolt plate in the middle part of the other end of safe plate, safe plate is bearing in corresponding with it by about a pair parallel guiding elongated slot and is fixed on a pair guide finger controlling inside housing sidewall; During side-mounted indoor high-voltage isolating switch inoperation, the bolt plate of the locking bolt whereabouts locked secure plate of electric control lock.
Compact conformation of the present invention, parts are few, low cost of manufacture, simple to operation.Achieve the integration of isolation, earthed switch, the safe distance in vacuum ring main unit is increased; Operating mechanism has reliable electrical interlocks function, when movable touch knife rotates and is locked in different positions, can realize the difference in functionality of combined floodgate or separating brake or ground connection, substantially increase the reliability of electric equipment operation, fail safe.The present invention can have voltage at ring main unit and carry out in non-loaded situation closing a floodgate, separating brake and conversion line operation, there is reliable grounding function simultaneously, there is certain ability closing short circuit current, be not damaged with the safety and miscellaneous equipment that ensure maintainer.
Advantage and disadvantage of the present invention, by for illustration and explanation for the non-limitative illustration passing through preferred embodiment below, these embodiments, only provide as an example with reference to accompanying drawing.
Accompanying drawing explanation
Fig. 1 is structure chart of the present invention;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is I enlarged drawing of Fig. 1;
Fig. 4 is II enlarged drawing of Fig. 1
Fig. 5 is the structure chart of "on" position of the present invention;
Fig. 6 is the structure chart of gate-dividing state of the present invention;
Fig. 7 is the structure chart of ground state of the present invention;
Fig. 8 is the structure chart of T-shaped bar;
Fig. 9 is the front view of safe plate;
Figure 10 is the vertical view of Fig. 9.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As depicted in figs. 1 and 2, the present invention includes and underframe 1, the supporting insulator 2 arranged in groups, upper static contact 3, lower fixed contact 4, movable touch knife 5 and movable touch knife rotating shaft 6 are installed, become the supporting insulator 2 of a group to become three rows side by side up and down, be separately positioned on upper static contact 3, lower fixed contact 4 and install between underframe 1; Also comprise grounding contact 7 corresponding with three movable touch knifes 5 respectively and operating mechanism 8, three movable touch knife 5 lower ends be arranged side by side are fixed in movable touch knife rotating shaft 6, between movable touch knife 5 lower end, separate respectively by insulator 62 between movable touch knife 5 and the support axle journal 61 of movable touch knife rotating shaft 6, the support axle journal 61 at movable touch knife rotating shaft 6 two ends is hinged with installation underframe 1 both sides respectively.
As shown in Fig. 5 ~ Fig. 7, movable touch knife 5 lower end extends mutually perpendicular first disjunctor contact 51 and the second disjunctor contact 52 respectively, upper static contact 3 and grounding contact 7 are all in sheet shape, lower fixed contact 4 takes the shape of the letter U, first disjunctor contact 51 and the second disjunctor contact 52 all cylindrical, movable touch knife 5 upper end is fork-shaped; When indoor high-voltage isolating switch closes a floodgate, the sheet shape end of upper static contact 3 is stuck in the forked end of movable touch knife 5; First disjunctor contact 51 is stuck in the U-shaped end of lower fixed contact 4.When indoor high-voltage isolating switch is in ground state, the sheet shape end of grounding contact 7 is stuck in the forked end of movable touch knife 5, and the second disjunctor contact 52 is stuck in the U-shaped end of lower fixed contact 4.Movable touch knife 5 turn to install underframe acutangulate α=58 ° time, the first disjunctor contact 51 or the second disjunctor contact 52 all do not contact with lower fixed contact 4, and indoor high-voltage isolating switch is in gate-dividing state.
As shown in Figure 1 to 4, operating mechanism 8 is arranged on installs underframe 1 side, comprise electric control lock 81, control housing 82, locating rack 83, safe plate 84, guide vane end stop 85 and actuating handle 86, the angle position controlling corresponding movable touch knife 5 three states on housing 82 is provided with " combined floodgate ", " separating brake " and " ground connection " three labels respectively.The support axle journal 61 of movable touch knife rotating shaft 6 one end extends tubular axle head 611, and described tubular axle head 611 passes vertically disposed installation underframe 1 and locating rack 83, corresponding with being arranged on the actuating handle controlled on housing 82 sidewall 821 positions of boring a hole.T-shaped bar 87 is arranged in tubular axle head 611, and tubular axle head 611 is provided with axial elongated slot 612, and as shown in Figure 8, the cross bar 871 of T-shaped bar 87 is fixed on the middle part of vertical pole 872.
As shown in Figure 4, the cross bar 871 of T-shaped bar 87 passes axial elongated slot 612, the tubular axle head 611 of movable touch knife rotating shaft 6 puts in guide vane end stop 85, guide vane end stop 85 is provided with three corresponding with the combined floodgate of movable touch knife 5, separating brake and ground connection three positions respectively guide vane end stop axial grooves 851, when indoor high-voltage isolating switch is in the position of combined floodgate or separating brake or ground connection, the cross bar 871 of T-shaped bar 87 is stuck in the guide vane end stop axial groove 851 of correspondence position, is locked in by movable touch knife 5 on the position of combined floodgate or separating brake or ground connection.Locating rack 83 is fixed on underframe 1 sidewall, controls housing 82 and covers locating rack 83 and guide vane end stop 85.Safe plate 84 is arranged on movably and controls on inside housing 82, and electric control lock 81 is fixed on and controls housing 82 upper end, and the transverse end of safe plate 84 passes the elongated slot 821 controlling housing sidewall.During side-mounted indoor high-voltage isolating switch not actuating, electric control lock locking bolt 811 falls locked secure plate 84, and now actuating handle perforation 822 has been blocked in safe plate 84 one end.
As shown in Fig. 9 and Figure 10, the safe plate 84 of the present embodiment is in key shaped, its one end is rounded, circular area is greater than control housing 82 sidewall actuating handle perforation 822, the other end of safe plate 84 has about a pair parallel guiding elongated slot 841, bolt plate 842 is vertically extended in the middle part of the other end of safe plate 84, safe plate 84 by about a pair parallel guiding elongated slot 841 be bearing in corresponding with it and be fixed on control housing 82 sidewall a pair guide finger 843 on, safe plate 84 moves horizontally under the guiding of a pair guide finger 843.During side-mounted indoor high-voltage isolating switch not actuating, the locking bolt 811 of electric control lock 81 falls the bolt plate 842 of locked secure plate 84.
The process that employing the present invention carries out separating brake actuating is as follows: electric control lock 81 accepts unlock command, and locking bolt 811 rises and throws off the bolt plate 842 of safe plate 84, and safe plate 84 unlocks; Then safe plate 84 is moved left to unlocked position along the elongated slot 821 controlling housing 82, the actuating handle perforation 822 controlling housing 82 is exposed; Then the head of actuating handle 86 is supported axle journal 61 through compressing into after actuating handle perforation 822, the spring power that promotion T-shaped bar 87 overcomes its rear end moves to left, the guide vane end stop axial groove 851 of closing position thrown off by the cross bar 871 of T-shaped bar 87, now can rotate counterclockwise actuating handle 86, actuating handle 86 head drives movable touch knife rotating shaft 6 to rotate counterclockwise, and the forked end of movable touch knife 5 departs from the sheet shape end of upper static contact 3; When movable touch knife 5 turn to install underframe 1 acutangulate α=58 ° time, unclamp actuating handle 86, under the effect of spring power, the cross bar 871 of T-shaped bar 87 axially elongated slot 612 moves to right, cross bar 871 falls in the guide vane end stop axial groove 851 of corresponding open position, and movable touch knife 5 is locked on open position.After extracting actuating handle 86, safe plate 84 is shifted to the right to latched position, electric control lock 81 accepts lock instruction, locked secure plate 84 in the bolt plate 842 of safe plate 84 is inserted in locking bolt 811 decline, now cannot use actuating handle 86, guarantee use safety of the present invention.
Except the rotational angle of actuating handle 86 or rotation direction difference, the present invention is adopted to carry out the process of combined floodgate actuating or ground connection actuating identical with said process.
In addition to the implementation, the present invention can also have other execution modes, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection range of application claims.
Claims (3)
1. a side-mounted indoor high-voltage isolating switch, comprise and underframe, the supporting insulator arranged in groups, upper static contact, lower fixed contact, movable touch knife and movable touch knife rotating shaft are installed, become the supporting insulator of a group to become three rows side by side up and down, be separately positioned on upper static contact or lower fixed contact and install between underframe; Also comprise grounding contact corresponding with three movable touch knifes respectively and operating mechanism, three the movable touch knife lower ends be arranged side by side are fixed in movable touch knife rotating shaft, between three movable touch knife lower ends, separate respectively by insulator between movable touch knife and the support axle journal of movable touch knife rotating shaft, the support axle journal at movable touch knife rotating shaft two ends is hinged with installation underframe both sides respectively; Operating mechanism is arranged on installs underframe side, comprise electric control lock, control housing, locating rack, safe plate, guide vane end stop and actuating handle, the support axle journal of movable touch knife rotating shaft one end extends tubular axle head, described tubular axle head passes vertically disposed installation underframe and locating rack, with to be arranged on the operating grip punch position controlled on housing corresponding; T-shaped bar is arranged in tubular axle head, and tubular axle head is connected with the guide vane end stop be fixed on inside locating rack by T-shaped bar, and locating rack is fixed on to be installed on underframe sidewall; Control housing and cover locating rack and guide vane end stop, safe plate is arranged on movably and controls on case inside, and electric control lock is fixed on and controls housing upper end, and the transverse end of safe plate passes the elongated slot controlling housing sidewall; During side-mounted indoor high-voltage isolating switch inoperation, the locking bolt whereabouts locked secure plate of electric control lock, now safe plate is in latched position, and operating grip perforation has been blocked in safe plate one end; It is characterized in that, movable touch knife lower end extends mutually perpendicular first disjunctor contact and the second disjunctor contact respectively, when movable touch knife turns to plumbness, upper static contact is connected with lower fixed contact by movable touch knife, the first disjunctor contact, and indoor high-voltage isolating switch is in "on" position; When movable touch knife turns to level, lower fixed contact is connected with grounding contact by the second disjunctor contact, movable touch knife, and high-tension switch cabinet is in the ground state that can carry out overhauling; Movable touch knife turn to install underframe acutangulate α time, the first disjunctor contact or the second disjunctor contact all do not contact with lower fixed contact, and indoor high-voltage isolating switch is in gate-dividing state.
2. side-mounted indoor high-voltage isolating switch as claimed in claim 1, is characterized in that, described upper static contact and grounding contact are all in sheet shape, and lower fixed contact takes the shape of the letter U, the first disjunctor contact and the second disjunctor contact all cylindrical, movable touch knife upper end is fork-shaped; When indoor high-voltage isolating switch closes a floodgate, the sheet shape end of upper static contact is stuck in the forked end of movable touch knife; First disjunctor contact is stuck in the U-shaped end of lower fixed contact; When indoor high-voltage isolating switch is in ground state, the sheet shape end of grounding contact is stuck in the forked end of movable touch knife, and the second disjunctor contact is stuck in the U-shaped end of lower fixed contact.
3. side-mounted indoor high-voltage isolating switch as claimed in claim 1, is characterized in that, described sharp angle α is 56 ° ~ 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310252874.1A CN103295828B (en) | 2013-06-25 | 2013-06-25 | Side-mounted type indoor high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310252874.1A CN103295828B (en) | 2013-06-25 | 2013-06-25 | Side-mounted type indoor high-voltage isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN103295828A CN103295828A (en) | 2013-09-11 |
| CN103295828B true CN103295828B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310252874.1A Active CN103295828B (en) | 2013-06-25 | 2013-06-25 | Side-mounted type indoor high-voltage isolating switch |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103715006A (en) * | 2014-01-02 | 2014-04-09 | 浙江博益电气有限公司 | All-insulation side-mounting type high-voltage isolation switch |
| CN107785206A (en) * | 2017-11-10 | 2018-03-09 | 河南森源电气股份有限公司 | A kind of earthed switch and its contact assembly and contact |
| CN110600314A (en) * | 2019-10-23 | 2019-12-20 | 江苏省如高高压电器有限公司 | Isolating switch with decoupling function |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584653U (en) * | 2009-11-20 | 2010-09-15 | 大全集团有限公司 | Switch cabinet electrified locking device |
| CN102751128A (en) * | 2012-07-02 | 2012-10-24 | 镇江市丹高电器有限公司 | Indoor high-voltage isolating switch interlocking device |
| CN203434064U (en) * | 2013-06-25 | 2014-02-12 | 镇江市丹高电器有限公司 | Side-mounted indoor high-voltage isolating switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63224124A (en) * | 1987-03-12 | 1988-09-19 | 富士電機株式会社 | Rotary type breaker integrated ground apparatus |
| JP4536152B2 (en) * | 2007-11-06 | 2010-09-01 | 三菱電機株式会社 | Switch |
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2013
- 2013-06-25 CN CN201310252874.1A patent/CN103295828B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201584653U (en) * | 2009-11-20 | 2010-09-15 | 大全集团有限公司 | Switch cabinet electrified locking device |
| CN102751128A (en) * | 2012-07-02 | 2012-10-24 | 镇江市丹高电器有限公司 | Indoor high-voltage isolating switch interlocking device |
| CN203434064U (en) * | 2013-06-25 | 2014-02-12 | 镇江市丹高电器有限公司 | Side-mounted indoor high-voltage isolating switch |
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| CN103295828A (en) | 2013-09-11 |
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Effective date of registration: 20191217 Address after: 212000 No. 728 South Harbor Road, Zhenjiang New District, Jiangsu Patentee after: Zhenjiang Huali switchgear Co., Ltd Address before: 212143 Ding Ge Village, New District, Jiangsu, Zhenjiang Patentee before: Zhenjiang Dangao Electric Co., Ltd. |