CN101465235A - On-pole switch - Google Patents
On-pole switch Download PDFInfo
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- CN101465235A CN101465235A CNA2009100955401A CN200910095540A CN101465235A CN 101465235 A CN101465235 A CN 101465235A CN A2009100955401 A CNA2009100955401 A CN A2009100955401A CN 200910095540 A CN200910095540 A CN 200910095540A CN 101465235 A CN101465235 A CN 101465235A
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- moving contact
- pole switch
- box body
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Abstract
The invention provides an on-column switch, belonging to the technical field of electricity. The invention solves the problems that the existing on-column switch is provided with low safety factor and has no prompt function. The on-column switch comprises a box body with a sealed cavity, and a main shaft threaded through the box body; the cavity of the box body is filled with arc extinguishing insulating medium; an outlet terminal threaded through the side walls of the box body is arranged on the box body; the inner end of the outlet terminal is located inside the box body and fixedly provided with a static contact and an arc extinguishing grid; the box body is provided with an intermediate terminal threaded through the side walls of the box body; the inner end of the intermediate terminal is located inside the box body and hinged with a dynamic contact; the dynamic contact is connected with the main shaft through a connecting rod; the box body is also provided with an inlet terminal; and an insurance mechanism is arranged between the inlet terminal and the intermediate terminal and connected with the two terminals. The invention adopts double insurance and the insurance mechanism is arranged outside the box body, so the state of the insurance mechanism can be observed. The on-column switch is provided with prompt function and has high security and rational structure.
Description
Technical field
The invention belongs to the electroporation field, relate to a kind of essential electronic element, particularly a kind of on-pole switch.
Background technology
The on-pole switch of Chu Shouing is of a great variety in the market, and common have an isolating switch on pole-mounted circuit breaker, post load switch, the post.Pole-mounted circuit breaker is mainly used in the interval segmentation switching of distribution line, control, protection, can cut-off, close and close short circuit current; The post load switch has carrying, deciliter rated current ability, but can not cut-off short circuit current, is mainly used in the segmentation and the Fault Isolation of circuit; Isolating switch mainly is used for buffer circuit on the post, and gate-dividing state has obvious fracture, is convenient to line maintenance, reconstruct operational mode.
For example, Chinese patent literature once disclosed a kind of indoor sulphur hexafluoride on-load switch [China Patent No.: 00217403.0; Granted publication CN2423650Y], on-load switch is fixed on the fixed mount, operating mechanism is installed front end and is placed low voltage control indoor, last insulating cover and following insulating cover are connected to become the insulating cover of sealing by bolt, the inner on-load switch parts of installing, and filling SF6 gas as arc extinguishing and dielectric, arc-chute is fixed on the fixed contact of top; Moving contact is installed in down on the outlet seat, and main shaft is installed in down in the insulating cover and can be connected with operating mechanism; Earth terminal is fixed on down the insulating cover bottom and links to each other with the outside by copper busbar and ground connection inserts.The switch of this structure may have certain load and arc extinguishing function, but exists bigger drawback.When needs outage construction, rotating spindle is separated moving contact from fixed contact, break down as switch this moment, though rotating spindle rotate in place, but moving contact can't be separated from fixed contact, because fixed contact and moving contact all are arranged in the insulating cover, can't observe to be in which kind of state between moving contact and the fixed contact again.The workmen can't know whether switch exists fault, if this moment, the workmen carried out the loss that power construction will cause personnel's life and property.
Summary of the invention
The objective of the invention is to have the problems referred to above, proposed a kind ofly to have multiple insurance, can observe the on-pole switch which kind of state outer moving contact is at existing technology.
Purpose of the present invention can realize by following technical proposal: a kind of on-pole switch, comprise casing with airtight inner chamber and the main shaft that is located on the casing, cabinets cavity is full of the arc extinguishing dielectric, on casing, be provided with the binding post that goes out that is located in wall box, the inner that goes out binding post is positioned at casing and is fixed with fixed contact and arc-chute, it is characterized in that, described casing is provided with the indirect terminal that is located in wall box, the inner of indirect terminal is positioned at casing and is hinged with moving contact, moving contact links to each other with main shaft by connecting rod, also be provided with into binding post on the described casing, advancing between binding post and the indirect terminal to be provided with the insurance institution that links to each other with both.
Insurance institution on this on-pole switch is owing to be arranged on outside the casing, so the residing open and-shut mode of insurance institution can be by being observed visually, thereby realizes giving the clear and definite circuit state signal of workmen, plays the effect of dual fail-safe simultaneously.
In above-mentioned on-pole switch, described insurance institution comprises the fixed mount that is fixed on the casing, the above-mentioned binding post that advances is fixed on the fixed mount, on fixed mount, be equipped with a rotating shaft, moving contact outside on fixed mount, being hinged with, outer moving contact links to each other with the indirect terminal by copper bar, and outer moving contact links to each other with rotating shaft by insulating bar.
In above-mentioned on-pole switch, be provided with the clutch that when moving contact and fixed contact are harmonious, rotating shaft is in the lock state between described rotating shaft and the main shaft.
In above-mentioned on-pole switch, described clutch comprises and is fixed on the block that has projection in the rotating shaft and is hinged on locking bar on the main shaft.
In above-mentioned on-pole switch, describedly go out binding post and the indirect terminal includes junction pole and the insulating sleeve between casing and junction pole.
In above-mentioned on-pole switch, described outer moving contact comprises insulating support that is fixed on the fixed mount and the outer moving contact junction block that is fixed on the insulating support, be hinged with isolation knife on the moving contact junction block outside, the two ends of above-mentioned copper bar are separately fixed on the junction pole of outer moving contact junction block and indirect terminal.
In above-mentioned on-pole switch, describedly advance binding post and comprise the insulating support that is fixed on the fixed mount and be fixed on and advance the wire to terminal seat on the insulating support.
In above-mentioned on-pole switch, described isolation knife comprises two copper bars, be provided with the copper post between two copper bars and be fixed together by bolt and nut, be provided with stage clip between nut and the copper bar, one end of copper bar is hinged on the outer moving contact junction block, the other end is a free end, has protruding circle on the free-ended opposite face of two copper bars.
In above-mentioned on-pole switch, be provided with spring between described rotating shaft and the fixed mount, the two ends of spring are separately fixed on rotating shaft and the fixed mount.
Compared with prior art, this on-pole switch has prompt facility, advantage safe, rational in infrastructure.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of this on-pole switch casing.
Fig. 2 is the main TV structure schematic diagram of outer moving contact when advancing the binding post released state of this on-pole switch.
Fig. 3 is the side-looking structural representation of outer moving contact when advancing the binding post released state of this on-pole switch.
Fig. 4 is the structural representation of the clutch of outer moving contact when advancing binding post and close up state of this on-pole switch.
Fig. 5 is the structural representation of the clutch of outer moving contact when advancing the binding post released state of this on-pole switch.
Among the figure, 1, casing; 2, main shaft; 3, fixed contact; 4, arc-chute; 5, moving contact; 6, connecting rod; 7, go out binding post; 8, indirect terminal; 9, junction pole; 10, insulating sleeve; 11, operating mechanism; 12a, pull bar one; 12b, pull bar two; 13, rotating shaft; 14, copper bar; 15, fixed mount; 16, spring; 17, isolation knife; 171, copper bar; 171a, protruding circle; 172, stage clip; 18, outer moving contact junction block; 19, advance the wire to terminal seat; 20, insulating support; 21, insulating bar; 22, block; 22a, projection; 22b, arc groove; 23, locking bar; 24, blocking lever; 25, fixture; 26, backing pin.
Embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As shown in Figure 1, this on-pole switch comprises the casing 1 with airtight inner chamber and is located in main shaft 2 on the casing 1 that be provided with operating mechanism 11 on main shaft 2, operating mechanism 11 is a prior art, is not described in detail.Be full of the arc extinguishing dielectric at casing 1 inner chamber, existing arc extinguishing dielectric commonly used has sulphur hexafluoride, wet goods.On casing 1, be provided be located in casing 1 sidewall go out binding post 7, go out binding post 7 and comprise junction pole 9 and the insulating sleeve 10 between casing 1 and junction pole 9, insulating sleeve 10 be fixed on the casing 1 and and casing 1 between sealing, the inner of insulating sleeve 10 is positioned at casing 1, and junction pole 9 passes insulating sleeve 10 and is fixed with fixed contact 3 and arc-chute 4.On casing 1, also be provided with the indirect terminal 8 that is located in casing 1 sidewall, indirect terminal 8 comprises junction pole 9 and the insulating sleeve 10 between casing 1 and junction pole 9, insulating sleeve 10 be fixed on the casing 1 and and casing 1 between sealing, the inner of insulating sleeve 10 is positioned at casing 1, and junction pole 9 passes insulating sleeve 10 and is hinged with moving contact 5.Moving contact 5 links to each other with main shaft 2 by connecting rod 6, and rotating spindle 2 can make moving contact 5 be folded with fixed contact 3 or separate.
As shown in Figures 2 and 3, upper surface is fixed with fixed mount 15 outside casing 1, is equipped with a rotating shaft 13 on fixed mount 15, and rotating shaft 13 passes fixed mount 15 and is fixed with pull bar one 12a, and rotating shaft 13 is fixed on the centre of pull bar one 12a; Above-mentioned main shaft 2 ends are provided with pull bar two 12b, and main shaft 2 is fixed on the middle part of pull bar two 12b.The two ends of pull bar one 12a and pull bar two 12b are equipped with pulling eye and kerve, end at pull bar one 12a and pull bar two 12b is provided with " closing " word, the other end is provided with " branch " word, described " branch " " closes " to be the downward pulling of pull bar two 12b " branch " end moving contact 5 separated with fixed contact 3, pull bar two 12b " closed " hold downward pulling moving contact 5 and fixed contact 3 to close up.
Above-mentioned indirect terminal 8 and go out binding post 7 and respectively have three is fixed with two row insulating supports 20, three insulating supports 20 of every row on fixed mount 15.Near moving contact junction block 18 outside all being fixed with on the row insulating sleeve 10 of indirect terminal 8, be hinged with isolation knife 17 on the moving contact junction block 18 outside, copper bar 14 links to each other outer moving contact junction block 18 with junction pole 9; On another row insulating support 20, all be fixed with into wire to terminal seat 19.
Above-mentioned isolation knife 17 comprises two copper bars 171, be provided with the copper post between two copper bars 171, bolt and nut passes copper bar 171 and the copper post is fixed together two copper bars 171, be provided with stage clip 172 between nut and the copper bar 171, the two ends of stage clip 172 act on respectively on nut and the copper bar 171, have the gap between two copper bars 171, described gap is identical with the thickness that advances wire to terminal seat 19.One end of copper bar 171 is hinged on the outer moving contact junction block 18, the other end is a free end, all have protruding circle 171a on the free-ended opposite face of two copper bars 171, be provided with to make isolation knife 17 behind protruding circle 171a and the stage clip 172 and advance wire to terminal seat 19 and cooperate tightr.In rotating shaft 13, be fixed with a cross bar, insulating bar 21 is arranged between isolation knife 17 and the rotating shaft 13 and two ends are hinged on respectively on isolation knife 17 and the cross bar, rotating shaft 13 can drive isolation knife 17 and move up and down, thereby realizes isolation knife 17 and advance separating or closing up of wire to terminal seat 19.Be provided with spring 16 between rotating shaft 13 and fixed mount 15, the two ends of spring 16 are separately fixed on rotating shaft 13 and the fixed mount 15, and spring 16 has the function of power-assisted and locking.
As shown in Figure 4 and Figure 5, be provided with block 22 between fixed mount 15 and pull bar one 12a, block 22 is fixed in the rotating shaft 13, an intrinsic arc groove 22b and a projection 22a on the block 22, be provided with backing pin 26 in arc groove 22b, backing pin 26 is fixed on the fixed mount 15.
Be hinged with a blocking lever 24 on main shaft 2, blocking lever 24 is connected with locking bar 23 by fixture 26, and an end of locking bar 23 is hinged on the fixture 26, and the other end is a free end.When isolation knife 17 with advance wire to terminal seat 19 and be in and close up state, when rotating spindle 2 will move joint and quiet joint and close up, this hour locking lever 23 moved upward, free end snaps in the right side of projection 22a.
As shown in Figure 4, the outer moving contact of this on-pole switch with advance binding post and moving contact 5 and fixed contact 3 and all be in and close up state, the free end of locking bar 23 snaps in the right side of projection 22a, rotating shaft 13 this moment can't be rotated separately, plays safety effect.
As Fig. 3 and shown in Figure 5, during with circuitry cuts, at first, will be fixed on " branch " end pulling downwards of pull bar two 12b on the main shaft 2 by on-pole switch at need, locking bar 23 moves down and breaks away from projection 22a, and moving contact 5 disengaging fixed contacts 3 make it to be in released state simultaneously.Then, will be fixed on " branch " end pulling downwards of pull bar one 12a in the rotating shaft 13, rotating shaft 13 is rotated together with block 22, and the arc groove 22b lower side on the block 22 is resisted against on the backing pin 26, makes isolation knife 17 break away to advance binding post simultaneously and is in released state.
The circuitry cuts of this on-pole switch only needs moving contact 5 to break away from fixed contacts 3 or isolation knife 17 breaks away to advance binding post, both one of break away from and just can realize the cut-out circuit, so have safe advantage.Owing to isolation knife 17 is that setting is that casing 1 is outer, whether isolation knife 17 has broken away from into binding post again, and the workmen stands in the ground naked eyes and just can observe, so have prompt facility.
When need reclose circuit, at first will be fixed on pull bar one 12a in the rotating shaft 13 " from " end pulling downwards, and then will be fixed on pull bar two 12b on the main shaft 2 " from " end pulling downwards.
As when need reclose circuit, outer moving contact with advance binding post and still be in released state, and moving contact 5 and fixed contact 3 are in and close up state, the free end of this hour locking lever 23 can snap in the left side of projection 22a, make rotating shaft to rotate, this structure has effectively been avoided outer moving contact and has been advanced binding post and contact under load condition.
Specific embodiment described herein only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used casing 1 morely; Main shaft 2; Fixed contact 3; Arc-chute 4; Moving contact 5; Connecting rod 6; Go out binding post 7; Indirect terminal 8; Junction pole 9; Insulating sleeve 10; Operating mechanism 11; Pull bar one 12a; Pull bar two 12b; Rotating shaft 13; Copper bar 14; Fixed mount 15; Spring 16; Isolation knife 17; Copper bar 171; Protruding circle 171a; Stage clip 172; Outer moving contact junction block 18; Advance wire to terminal seat 19; Insulating support 20; Insulating bar 21; Block 22; Projection 22a; Arc groove 22b; Locking bar 23; Blocking lever 24; Fixture 25; Backing pin 26 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; They are construed to any additional restriction all is contrary with spirit of the present invention.
Claims (9)
1, a kind of on-pole switch, comprise casing (1) and be located in main shaft (2) on the casing (1) with airtight inner chamber, casing (1) inner chamber is full of the arc extinguishing dielectric, on casing (1), be provided be located in casing (1) sidewall go out binding post (7), the inner that goes out binding post (7) is positioned at casing (1) and is fixed with fixed contact (3) and arc-chute (4), it is characterized in that, described casing (1) is provided with the indirect terminal (8) that is located in casing (1) sidewall, the inner of indirect terminal (8) is positioned at casing (1) and is hinged with moving contact (5), moving contact (5) links to each other with main shaft (2) by connecting rod (6), described casing also is provided with into binding post on (1), is advancing between binding post and the indirect terminal (8) to be provided with the insurance institution that links to each other with both.
2, on-pole switch according to claim 1, it is characterized in that, described insurance institution comprises the fixed mount (15) that is fixed on the casing (1), the above-mentioned binding post that advances is fixed on the fixed mount (15), on fixed mount (15), be equipped with a rotating shaft (13), moving contact (5) outside on fixed mount (15), being hinged with, outer moving contact (5) links to each other with indirect terminal (8) by copper bar (14), and outer moving contact (5) links to each other with rotating shaft (13) by insulating bar (21).
3, on-pole switch according to claim 1 and 2 is characterized in that, is provided with the clutch that rotating shaft (13) is in the lock state when moving contact (5) and fixed contact (3) between described rotating shaft (13) and the main shaft (2).
4, on-pole switch according to claim 3 is characterized in that, described clutch comprises and is fixed on the block (22) that has right angle groove (22a) in the rotating shaft (13) and is hinged on locking bar (23) on the main shaft (2).
5, on-pole switch according to claim 1 and 2 is characterized in that, described go out binding post (7) and indirect terminal (8) include junction pole (9) and be positioned at casing (1) and junction pole (9) between insulating sleeve (10).
6, on-pole switch according to claim 2, it is characterized in that, described outer moving contact (5) comprises the insulating support (20) that is fixed on the fixed mount (15) and is fixed on outer moving contact junction block (18) on the insulating support (20), be hinged with isolation knife (17) on the moving contact junction block (18) outside, the two ends of above-mentioned copper bar (14) are separately fixed on the junction pole (9) of outer moving contact junction block (18) and indirect terminal (8).
7, on-pole switch according to claim 1 and 2 is characterized in that, describedly advances binding post and comprises the insulating support (20) that is fixed on the fixed mount (15) and be fixed on and advance wire to terminal seat (19) on the insulating support (20).
8, on-pole switch according to claim 6, it is characterized in that, described isolation knife (17) comprises two copper bars (171), be provided with the copper post between two copper bars (171) and be fixed together by bolt and nut, be provided with stage clip (172) between nut and the copper bar (171), one end of copper bar (171) is hinged on the outer moving contact junction block (18), and the other end is a free end, has protruding circle (171a) on the free-ended opposite face of two copper bars (171).
9, on-pole switch according to claim 1 and 2 is characterized in that, is provided with spring (16) between described rotating shaft (13) and the fixed mount (15), and the two ends of spring (16) are separately fixed on rotating shaft (13) and the fixed mount (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100955401A CN101465235B (en) | 2009-01-19 | 2009-01-19 | On-pole switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100955401A CN101465235B (en) | 2009-01-19 | 2009-01-19 | On-pole switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101465235A true CN101465235A (en) | 2009-06-24 |
| CN101465235B CN101465235B (en) | 2012-05-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100955401A Active CN101465235B (en) | 2009-01-19 | 2009-01-19 | On-pole switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101465235B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733223A (en) * | 2014-12-18 | 2015-06-24 | 国网上海市电力公司 | Automatic insulation protecting device for compression spring resetting type breaker |
| CN104733222A (en) * | 2014-12-18 | 2015-06-24 | 国网上海市电力公司 | Automatic breaker insulation protection device |
| CN104900445A (en) * | 2014-12-18 | 2015-09-09 | 国网上海市电力公司 | Torsion spring bouncing-type circuit breaker insulated automatic protection device |
| CN105703248A (en) * | 2016-03-31 | 2016-06-22 | 国网山东省电力公司青岛供电公司 | Column switch insulated shielding structure |
| CN108630485A (en) * | 2017-03-22 | 2018-10-09 | 河南华盛隆源电气有限公司 | A kind of outdoor load switch with visible isolation fracture |
| CN113192789A (en) * | 2021-03-24 | 2021-07-30 | 天津平高智能电气有限公司 | On-pole isolating switch and wiring terminal thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3437023A1 (en) * | 1984-10-09 | 1986-04-10 | Wickmann-Werke GmbH, 5810 Witten | Extinguishing device as well as a load interruptor switch having an extinguishing device |
| CN2423650Y (en) * | 2000-04-25 | 2001-03-14 | 李彤 | Indoor sulfur hexafluoride load switch |
| CN2472335Y (en) * | 2001-02-28 | 2002-01-16 | 西安市前进电器实业有限公司 | Automatic vacuum load switch on post |
| CN201417707Y (en) * | 2009-01-19 | 2010-03-03 | 浙江华网电气有限公司 | Pole mounted switch |
-
2009
- 2009-01-19 CN CN2009100955401A patent/CN101465235B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104733223A (en) * | 2014-12-18 | 2015-06-24 | 国网上海市电力公司 | Automatic insulation protecting device for compression spring resetting type breaker |
| CN104733222A (en) * | 2014-12-18 | 2015-06-24 | 国网上海市电力公司 | Automatic breaker insulation protection device |
| CN104900445A (en) * | 2014-12-18 | 2015-09-09 | 国网上海市电力公司 | Torsion spring bouncing-type circuit breaker insulated automatic protection device |
| CN104733222B (en) * | 2014-12-18 | 2017-05-03 | 国网上海市电力公司 | Automatic breaker insulation protection device |
| CN104733223B (en) * | 2014-12-18 | 2017-05-03 | 国网上海市电力公司 | Automatic insulation protecting device for compression spring resetting type breaker |
| CN104900445B (en) * | 2014-12-18 | 2017-06-13 | 国网上海市电力公司 | A kind of torsion spring pop-up type breaker insulation automatic safety device |
| CN105703248A (en) * | 2016-03-31 | 2016-06-22 | 国网山东省电力公司青岛供电公司 | Column switch insulated shielding structure |
| CN108630485A (en) * | 2017-03-22 | 2018-10-09 | 河南华盛隆源电气有限公司 | A kind of outdoor load switch with visible isolation fracture |
| CN113192789A (en) * | 2021-03-24 | 2021-07-30 | 天津平高智能电气有限公司 | On-pole isolating switch and wiring terminal thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101465235B (en) | 2012-05-16 |
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