CN102376486B - Solid insulation independent grounding switch - Google Patents
Solid insulation independent grounding switch Download PDFInfo
- Publication number
- CN102376486B CN102376486B CN201010261537.5A CN201010261537A CN102376486B CN 102376486 B CN102376486 B CN 102376486B CN 201010261537 A CN201010261537 A CN 201010261537A CN 102376486 B CN102376486 B CN 102376486B
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- Prior art keywords
- contact
- grounding
- moving contact
- ground connection
- insulating cylinder
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- Expired - Fee Related
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 35
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 230000003068 static effect Effects 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a solid insulation independent grounding switch, which comprises a rear touch base, an insulating cylinder, a grounding moving contact, a grounding fixed contact, a middle fixed contact and an insulating plug. A conducting rod is arranged in the rear touch base and fixedly connected with a cable contact. The insulating cylinder and the insulating plug are inserted on two sides of the rear touch base respectively; two ends of the insulating cylinder are provided with the grounding fixed contact and the middle fixed contact respectively; the grounding fixed contact is embedded with the conducting rod and then fixedly connected with the insulating plug; the grounding moving contact is arranged in sliding guide holes formed in the grounding fixed contact and the middle fixed contact; a guide bolt fixed at the upper end of the middle fixed contact is arranged in a guide slot arranged on the grounding moving contact; the central part of the grounding moving contact is provided with a through hole; a screw rod is sleeved in the through hole; the grounding moving contact is fixed by a nut; the nut is screwed on the screw rod; and one end of the screw rod is fixedly connected with a driving gear. The solid insulation independent grounding switch is accurate in driving, compact in structure and small in volume, needs no daily maintenance, is not influenced by operating environment, can be configured in a solid insulation combined electrical apparatus, and is used for ensuring the safety of overhauling work.
Description
Technical field
The present invention relates in industrial power distribution, as the earthed switch of auxiliary facility, particularly to relate to a kind of independent grounding switch and to be disposed at the solid insulation independent grounding switch in fixed insulation combined electrical apparatus.
Background technology
Earthed switch is one of key equipment of power supply industry, in industrial power distribution as auxiliary facility, the earthed switch of high voltage power distributing cabinet is generally output load side joint ground, when examination and repair for high-pressure power distribution cabinet load side (as: fastening bolt, dismounting cable etc.), will section breaker, the earthed switch of the power distribution cabinet that simultaneously closes, can prevent that incoming call causes electric shock accidents suddenly like this, can drain residual charge in addition, guarantee the carrying out of service work safety.
General earthed switch adopts traditional disconnecting link formula earthed switch mostly at present, in today of scientific and technical fast development, disconnecting link formula earthed switch has exposed the technical problem that itself has, existing high voltage ground switch, utilize round steel welding to form main shaft, left and right operating stationary, stored energy mechanism easily produces spring and ejects bearing, cause short circuit accident, in addition, disconnecting link formula earthed switch takes up room greatly because of its structure, installs inconveniently, and the stability of action and long playing reliability all exist certain defect comparatively speaking.
Along with scientific and technical development, the general existing problem of disconnecting link formula switch and defect must solve and improve at present.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of compact conformation, little, easy for installation, the daily solid insulation independent grounding switch that need not safeguard, not affected by running environment of volume.
The technical scheme adopting is:
Solid insulation independent grounding switch, comprises rear touch base, insulating cylinder, ground connection moving contact, grounding static contact, middle fixed contact, insulation shutoff, sealing ring, operating mechanism.Described rear touch base is formed by poured with epoxy resin, and inside is fixedly equiped with conducting rod and cable contact, and conducting rod is fixedly connected with cable contact.Described insulating cylinder and insulation shutoff are plugged on respectively rear touch base both sides, insulating cylinder two ends arrange respectively grounding static contact and middle fixed contact, grounding static contact is inlayed afterwards and is fixedly connected with insulation shutoff with conducting rod, grounding static contact and middle fixed contact centre are equipped with slip guide hole, in slip guide hole, be provided with watchband-shaped contactor groove, in watchband-shaped contactor groove, be inlaid with the watchband-shaped contactor (commercially available standard component) that guarantees concentricity, the outside of described ground connection moving contact is provided with gathering sill, ground connection moving contact packs in slip guide hole, the upper end of middle fixed contact is fixed with a guide blot, lower end is fixed with grounding copper bar, guide blot is placed in the gathering sill of ground connection moving contact, can make ground connection moving contact slide accurately in slip guide hole.The center of described ground connection moving contact is provided with through hole, is arranged with the screw mandrel of insulation in through hole, and one end of ground connection moving contact is fixedly connected with screw, and screw rotation set is on screw mandrel, and one end of screw mandrel is fixedly connected with travelling gear, forms earthed switch.
Above-mentioned insulating cylinder is formed by poured with epoxy resin, without the inserts of any cast one, is set as and can increases the screw thread of creepage distance spiral structure in insulating cylinder.
Above-mentioned insulating cylinder and insulation shutoff are pegged graft reliably and are crimped on rear touch base with the sealing of sealing ring parcel form respectively.
The earthed switch of above-mentioned formation is three covers corresponding with A, B, the C tri-of alternating current respectively, and wherein the travelling gear of the earthed switch of a side is contained on operating mechanism, and the travelling gear of adjacent two earthed switches is connected by idler gear.
Feature of the present invention:
1, insulated part all adopts epoxy resin and the silicon rubber manufacture that hydrophobicity is good, and rear touch base, insulating cylinder and insulation shutoff adopt sealing ring parcel grafting form, guarantees the reliability of insulation and sealing.
2, adopt insulation screw rod transmission, stable drive, accurate, noiselessness make ground connection moving contact Linear transmission simultaneously.
3, between dynamic and static contact, adopt tubulose to peg graft, ground connection moving contact adopts tubular structure, and the moving contact ampacity of this kind of structure is large, perfect heat-dissipating.
Design science of the present invention, rationally, little, the stable performance of volume, reliable in action, no matter aspect economy or in electric product application, all there is extremely strong practicality and advance, be also the precondition that reduces customer investment.
It should be noted that: do not changing under the prerequisite of principle of the present invention and design, the change of having done or distortion, all belong to protection scope of the present invention.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is that schematic diagram is looked on a left side of Fig. 1.
Embodiment
Solid insulation independent grounding switch, comprises rear touch base 1, insulating cylinder 2, ground connection moving contact 3, grounding static contact 4, middle fixed contact 5, insulation shutoff 6, sealing ring 7, operating mechanism 15.Described rear touch base 1 is formed by poured with epoxy resin, and inside is fixedly equiped with conducting rod 8 and cable contact 9, and conducting rod 8 is fixedly connected with cable contact 9.Described insulating cylinder 2 and insulation shutoff 6 form by poured with epoxy resin, and insulating cylinder 2, without the inserts of any cast one, is set as screw thread spiral structure 19 in insulating cylinder 2, to increase creepage distance.Insulating cylinder 2 and insulation shutoff 6 are pegged graft with sealing ring 7 parcel forms respectively and are crimped on rear touch base 1 both sides.Guarantee the reliability of insulation and sealing.Insulating cylinder 2 two ends arrange respectively grounding static contact 4 and middle fixed contact 5, grounding static contact 4 is inlayed afterwards and is fixedly connected with insulation shutoff 6 with conducting rod 8, grounding static contact 4 and middle fixed contact 5 centres are equipped with slip guide hole 16, in slip guide hole 16, be provided with watchband-shaped contactor groove 17, in watchband-shaped contactor groove 17, be inlaid with the watchband-shaped contactor (commercially available standard component) that guarantees concentricity, the outside of described ground connection moving contact 3 is provided with gathering sill 10, ground connection moving contact 3 packs in slip guide hole 16, the upper end of middle fixed contact 5 is fixed with a guide blot 18, lower end is fixed with grounding copper bar, guide blot 18 is placed in the gathering sill 10 of ground connection moving contact 3, can make ground connection moving contact 3 slide accurately in slip guide hole 16.The center of described ground connection moving contact 3 is provided with through hole 11, in through hole 11, be arranged with the screw mandrel 12 that adopts high-strength nylon insulating material to make, one end of ground connection moving contact 3 is fixedly connected with screw 13, screw 13 rotation sets are on screw mandrel 12, one end of screw mandrel 12 is fixedly connected with travelling gear 14, forms earthed switch.The earthed switch of described formation is three covers corresponding with A, B, the C tri-of alternating current respectively, and wherein the travelling gear 14 of the earthed switch of a side is contained on operating mechanism 15, and the travelling gear 14 of adjacent two earthed switches is connected by idler gear 20.Operating mechanism 15 band nutating gears 14 rotate, and pass through idler gear 20 interlock screw mandrels 12 and rotate, and drive ground connection moving contact 3 and grounding static contact 4 minutes, combined floodgate, form solid insulation independent grounding switch.
Operation principle
If solid insulation independent grounding switch is in ground state, electric current flow to grounding static contact 4 from cable contact 9 through conducting rod 8, again from grounding static contact 4 fixed contact 5 in the middle of ground connection moving contact 3 arrives, by the grounding copper bar on middle fixed contact 5, finally form grounded circuit, prevent in the process of maintenance because aftercurrent causes security threat to the person.
When needs carry out sub-switching operation to solid insulation independent grounding switch, at this moment controlled operating mechanism 15 band nutating gears 14 rotate, linkage screw mandrel 12 rotates, thereby make screw 13 on screw mandrel, rely on screw thread to move forward, drive ground connection moving contact 3 to make the rear end of ground connection moving contact leave grounding static contact 4, reach a minute segment distance, and complete separating brake process.
Claims (4)
1. solid insulation independent grounding switch, comprise rear touch base (1), insulating cylinder (2), ground connection moving contact (3), grounding static contact (4), middle fixed contact (5), insulation shutoff (6), sealing ring (7), operating mechanism (15), it is characterized in that described rear touch base (1) is formed by poured with epoxy resin, inner conducting rod (8) and the cable contact (9) of being fixedly equiped with, conducting rod (8) is fixedly connected with cable contact (9), insulating cylinder (2) and insulation shutoff (6) are plugged on respectively rear touch base (1) both sides, insulating cylinder (2) two ends arrange respectively grounding static contact (4) and middle fixed contact (5), grounding static contact (4) is inlayed afterwards and is fixedly connected with insulation shutoff (6) with conducting rod (8), grounding static contact (4) is equipped with slip guide hole (16) with middle fixed contact (5) centre, in slip guide hole (16), be provided with watchband-shaped contactor groove (17), in watchband-shaped contactor groove (17), be inlaid with the watchband-shaped contactor that guarantees concentricity, the outside of described ground connection moving contact (3) is provided with gathering sill (10), ground connection moving contact (3) packs in slip guide hole (16), the upper end of middle fixed contact (5) is fixed with a guide blot (18), lower end is fixed with grounding copper bar, guide blot (18) is placed in the gathering sill (10) of ground connection moving contact (3), can make ground connection moving contact (3) slide accurately in slip guide hole (16), the center of described ground connection moving contact (3) is provided with through hole (11), in through hole (11), be arranged with the screw mandrel (12) of insulation, one end of ground connection moving contact (3) is fixedly connected with screw (13), screw (13) rotation set is on screw mandrel (12), one end of screw mandrel (12) is fixedly connected with travelling gear (14), form earthed switch.
2. solid insulation independent grounding switch according to claim 1, it is characterized in that described insulating cylinder (2) is formed by poured with epoxy resin, without the inserts of any cast one, in insulating cylinder (2), be set as and can increase the screw thread of creepage distance spiral structure (19).
3. solid insulation independent grounding switch according to claim 1, is characterized in that described insulating cylinder (2) and insulation shutoff (6) seal and peg graft reliably and be crimped on rear touch base (1) with sealing ring (7) parcel form respectively.
4. solid insulation independent grounding switch according to claim 1, the earthed switch that it is characterized in that described formation is three covers corresponding with A, B, the C tri-of alternating current respectively, wherein the travelling gear of the earthed switch of a side (14) is contained in operating mechanism (15) above, and the travelling gear of adjacent two earthed switches (14) is connected by idler gear (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010261537.5A CN102376486B (en) | 2010-08-25 | 2010-08-25 | Solid insulation independent grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010261537.5A CN102376486B (en) | 2010-08-25 | 2010-08-25 | Solid insulation independent grounding switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102376486A CN102376486A (en) | 2012-03-14 |
| CN102376486B true CN102376486B (en) | 2014-04-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010261537.5A Expired - Fee Related CN102376486B (en) | 2010-08-25 | 2010-08-25 | Solid insulation independent grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102376486B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832563B (en) * | 2012-08-31 | 2015-04-15 | 北京华电瑞通电力工程技术有限公司 | Integrally-cast solid insulation grounding device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054330Y (en) * | 2007-05-10 | 2008-04-30 | 北京龙源开关设备有限责任公司 | Direct moving insulation switch |
| CN201514889U (en) * | 2009-09-27 | 2010-06-23 | 长沙智通电力设备有限公司 | Terminal post enclosed in arc extinguish chamber for vacuum circuit breaker |
| CN201853635U (en) * | 2010-08-25 | 2011-06-01 | 沈阳昊诚电气股份有限公司 | Solid insulating independent grounding switch |
-
2010
- 2010-08-25 CN CN201010261537.5A patent/CN102376486B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201054330Y (en) * | 2007-05-10 | 2008-04-30 | 北京龙源开关设备有限责任公司 | Direct moving insulation switch |
| CN201514889U (en) * | 2009-09-27 | 2010-06-23 | 长沙智通电力设备有限公司 | Terminal post enclosed in arc extinguish chamber for vacuum circuit breaker |
| CN201853635U (en) * | 2010-08-25 | 2011-06-01 | 沈阳昊诚电气股份有限公司 | Solid insulating independent grounding switch |
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| Publication number | Publication date |
|---|---|
| CN102376486A (en) | 2012-03-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110027 Shenyang economic and Technological Development Zone, Liaoning Province, No. 1, No. 12, No. 1, development road, Shenyang economic and Technological Development Zone Patentee after: SHENYANG HAOCEN ELECTRIC CO.,LTD. Address before: 110027 Shenyang economic and Technological Development Zone, Liaoning Province, No. 1, No. 12, No. 1, development road, Shenyang economic and Technological Development Zone Patentee before: Shenyang Haocen Electric Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |