CN204857552U - High voltage isolation earthing switch - Google Patents
High voltage isolation earthing switch Download PDFInfo
- Publication number
- CN204857552U CN204857552U CN201520547731.8U CN201520547731U CN204857552U CN 204857552 U CN204857552 U CN 204857552U CN 201520547731 U CN201520547731 U CN 201520547731U CN 204857552 U CN204857552 U CN 204857552U
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- contact knife
- contact
- knife
- fixed
- sword
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Abstract
The utility model discloses a high voltage isolation earthing switch, comprises a base, the base be provided with insulator and insulator down about on side by side, be fixed with upper and lower static contact on the upper and lower insulator respectively, be provided with a left side about between the upper and lower static contact side by side and touch the sword and touch the sword with the right side, the upper end that the sword was touched on a left side tightly contacts at the clamp of combined floodgate station formation to last static contact with right upper end of touching the sword, a left side touch the sword and touch the sword with the right side and be the arc that outwards arches form setting, the upper end outside that the sword was touched on a left side all is provided with splint with the right upper end outside of touching the sword, wears to establish to be fixed with a screw rod between the middle part of two splint, it makes its knock pin that keeps the opposite outer power of opening to press from both sides between the lower extreme of two splint to be equipped with, the upper end of two splint presss from both sides tightly on the upper end tip of sword is touched on the upper end tip by touch the sword on a left side and the right side respectively. Through adopting the structure mentioned above, the utility model provides a littleer and the more reliable and more stable high voltage isolation earthing switch of operation of occupation space.
Description
Technical field
The utility model relates to a kind of element for air insulated switch equipment, and particularly one is suitable for 12KV, and the small modular air insulation in 50Hz three-phase alternating current electrical network has the isolation ground connection unit switch of visual fracture.Mainly be suitable for the air insulation ring main unit switch combination unit forming small modular.
Background technology
At present, existing high-voltage isolation grounding switch mainly includes base, side by side up and downly on described base be provided with insulator and lower insulator, described upper insulator is fixed with upper static contact, described lower insulator is fixed with lower fixed contact, between upper static contact and lower fixed contact, left and right has been arranged side by side left contact knife and right contact knife, the lower end of left contact knife and the lower end of right contact knife are all hingedly fixed on lower fixed contact, and the upper end of left contact knife and the upper end of right contact knife form the clamped contact to upper static contact at combined floodgate station.But in the prior art, also there is following defect in traditional high-voltage isolation grounding switch: 1, left contact knife and right contact knife are all in vertical bar shaped vibrational power flow, this just makes the length of left contact knife and right contact knife longer, correspondingly need for closing a floodgate, between upper insulator and lower insulator spacing and between upper static contact and lower fixed contact spacing all can become large, simultaneously in the process of opening a sluice gate, left contact knife and the isolation total height needed for right contact knife hinged open also can and then become large, thus make taking up room needed for high-voltage isolation grounding switch entirety become large.When 2, closing a floodgate; the upper end of left contact knife and the upper end of right contact knife can form clamped contact to upper static contact afterwards in hinged rotation; but owing to lacking other power to keep left and right contact knife to the clamped contact of upper static contact; therefore above-mentioned clamped contact often can come in contact bad problem, thus makes high-voltage isolation grounding switch be difficult to the reliability guaranteeing to run.
Summary of the invention
For the deficiencies in the prior art, the utility model provides a kind of less and that operation is more reliable and more stable high-voltage isolation grounding switch that takes up room.
For achieving the above object, the utility model provides a kind of high-voltage isolation grounding switch, include base, side by side up and downly on described base be provided with insulator and lower insulator, described upper insulator is fixed with upper static contact, described lower insulator is fixed with lower fixed contact, between upper static contact and lower fixed contact, left and right has been arranged side by side left contact knife and right contact knife, the lower end of left contact knife and the lower end of right contact knife are all hingedly fixed on lower fixed contact, the upper end of left contact knife and the upper end of right contact knife form the clamped contact to upper static contact at combined floodgate station, described left contact knife and right contact knife are arranged in the arc shape outwards arched, clamping plate are provided with outside the upper end of described left contact knife and outside the upper end of right contact knife, wear between the middle part of two clamping plate and be fixed with a screw rod, and described screw rod is also corresponding to the upper end of left contact knife and the upper end of right contact knife, described screw rod is also set with and impels in the middle part of two clamping plate and Compress Spring that left contact knife upper end and right contact knife upper end close up mutually, the ejector pin impelling it to keep relative outer opening force is folded with between the lower end of described two clamping plate, the upper end of described two clamping plate clamps respectively and is resisted against on the end, upper end of left contact knife and the end, upper end of right contact knife.
The beneficial effects of the utility model are: adopt said structure, because the middle part of described two clamping plate is positioned on left and right contact knife by screw rod connection, and the lower end of two clamping plate is relative under the effect of ejector pin outer opens, therefore the upper end of two clamping plate inwardly will certainly extrude the end, upper end of left and right contact knife, thus make left and right contact knife have better gripping contact force to upper static contact when closing a floodgate, greatly improve the contact effect of combined floodgate, high-voltage isolation grounding switch is more reliablely and stablely run.In addition, in the utility model, described left contact knife and right contact knife are arranged in the arc shape outwards arched, vertical bar shaped structure so compared to existing technology, the length of left contact knife and right contact knife can relative shortening, thus to make between insulator and lower insulator spacing and between upper static contact to lower fixed contact, spacing all can correspondingly reduce; In the process of opening a sluice gate, left contact knife and the isolation total height needed for right contact knife hinged open also and then diminish, and then taking up room needed for high-voltage isolation grounding switch entirety is diminished, and make high-voltage isolation grounding switch have more miniaturization.
The utility model can be set to described ejector pin correspondence further through the upper end of left contact knife and the upper end of right contact knife, and the axial length of described ejector pin is greater than the spacing between left contact knife upper end lateral surface and right contact knife upper end lateral surface, the axial two ends of described ejector pin are also equipped with projection, and the lower end correspondence of described two clamping plate is provided with the jack plugged with described projection.
Adopt above-mentioned setting, ejector pin can be made reliablely and stablely between the mounted lower end being positioned at two clamping plate, thus make left and right contact knife have good gripping contact force when closing a floodgate all the time to upper static contact.
The utility model also can be set to described base is also equiped with ground connection moving contact component further, described ground connection moving contact component includes to form with lower fixed contact and opens, close a floodgate the ground connection moving contact coordinated, ground connection main shaft, spring and connecting lever part, described ground connection main shaft is fixed on base, the center of connecting lever part is hinged to be fixed on ground connection main shaft, one end of connecting lever part is connected with ground connection moving contact, the other end of connecting lever part is provided with hinged rotary spacing groove, on described base, corresponding being provided with forms the spacing spacer pin coordinated with described hinged rotary spacing groove, described connecting lever part is also provided with an elongated end between the ends, described elongated end to be strained with base by spring and is connected.
Adopt said structure, by the rotation of connecting lever part on ground connection main shaft, ground connection moving contact can be made to realize opening and closing lock with lower fixed contact and coordinate, and the setting of described spring, then deciliter grounding ports speed can be made high, there is the making capability dividing soon soon close.
The utility model also can be set to described left contact knife and right contact knife are also connected with take-up device further, described take-up device includes insulated tension pole, transmission arm and connecting axle, described connecting axle is fixed on base, one end and the connecting axle of transmission arm are hinged, the other end of transmission arm is connected with one end of insulated tension pole, and the other end of insulated tension pole and the middle part of left and right contact knife are fixed.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the front view of the utility model left and right contact knife open mode;
Fig. 3 is profile of the present utility model;
Fig. 4 is right view of the present utility model;
Fig. 5 is the I portion enlarged drawing of Fig. 4.
Embodiment
As Fig. 1, 2, 3, 4, a kind of high-voltage isolation grounding switch is given shown in 5, include base 1, side by side up and downly on described base 1 be provided with insulator 2 and lower insulator 3, described upper insulator 2 is fixed with upper static contact 4, described lower insulator 3 is fixed with lower fixed contact 5, between upper static contact 4 and lower fixed contact 5, left and right has been arranged side by side left contact knife 6 and right contact knife 7, the lower end of left contact knife 6 and the lower end of right contact knife 7 are all hingedly fixed on lower fixed contact 5, the upper end of left contact knife 6 and the upper end of right contact knife 7 form the clamped contact to upper static contact 4 at combined floodgate station, described left contact knife 6 and right contact knife 7 are arranged in the arc shape outwards arched, clamping plate 8 are provided with outside the upper end of described left contact knife 6 and outside the upper end of right contact knife 7, wear between the middle part of two clamping plate 8 and be fixed with a screw rod 9, and described screw rod 9 is also corresponding to the upper end of left contact knife 6 and the upper end of right contact knife 7, described screw rod 9 is also set with and impels in the middle part of two clamping plate 8 and Compress Spring 10 that left contact knife 6 upper end and right contact knife 7 upper end close up mutually, the ejector pin 11 impelling it to keep relative outer opening force is folded with between the lower end of described two clamping plate 8, the upper end of described two clamping plate 8 clamps respectively and is resisted against on the end, upper end of left contact knife 6 and the end, upper end of right contact knife 7.Described ejector pin 11 correspondence is through the upper end of left contact knife 6 and the upper end of right contact knife 7, and the axial length of described ejector pin 11 is greater than the spacing between left contact knife 6 upper end lateral surface and right contact knife 7 upper end lateral surface, the axial two ends of described ejector pin 11 are also equipped with projection 12, and the lower end correspondence of described two clamping plate 8 is provided with the jack 81 plugged with described projection 12.Described base 1 is also equiped with ground connection moving contact component, described ground connection moving contact component includes to form with lower fixed contact 5 and opens, close a floodgate the ground connection moving contact 13 coordinated, ground connection main shaft 14, spring 15 and connecting lever part 16, described ground connection main shaft 14 is fixed on base 1, the center of connecting lever part 16 is hinged to be fixed on ground connection main shaft 14, one end of connecting lever part 16 is connected with ground connection moving contact 13, the other end of connecting lever part 16 is provided with hinged rotary spacing groove 161, on described base 1, corresponding being provided with forms the spacing spacer pin 17 coordinated with described hinged rotary spacing groove 161, described connecting lever part 16 is also provided with an elongated end 162 between the ends, described elongated end 162 is strained with base 1 by spring 15 and is connected.Described left contact knife 6 and right contact knife 7 are also connected with take-up device, described take-up device includes insulated tension pole 18, transmission arm 19 and connecting axle 20, described connecting axle 20 is fixed on base 1, one end and the connecting axle 20 of transmission arm 19 are hinged, the other end of transmission arm 19 is connected with one end of insulated tension pole 18, and the other end of insulated tension pole 18 and the middle part of left contact knife 6 and right contact knife 7 are fixed.By adopting said structure, the utility model provides a kind of less and that operation is more reliable and more stable high-voltage isolation grounding switch that takes up room.
Claims (4)
1. a high-voltage isolation grounding switch, include base, side by side up and downly on described base be provided with insulator and lower insulator, described upper insulator is fixed with upper static contact, described lower insulator is fixed with lower fixed contact, between upper static contact and lower fixed contact, left and right has been arranged side by side left contact knife and right contact knife, the lower end of left contact knife and the lower end of right contact knife are all hingedly fixed on lower fixed contact, the upper end of left contact knife and the upper end of right contact knife form the clamped contact to upper static contact at combined floodgate station, it is characterized in that: described left contact knife and right contact knife are arranged in the arc shape outwards arched, clamping plate are provided with outside the upper end of described left contact knife and outside the upper end of right contact knife, wear between the middle part of two clamping plate and be fixed with a screw rod, and described screw rod is also corresponding to the upper end of left contact knife and the upper end of right contact knife, described screw rod is also set with and impels in the middle part of two clamping plate and Compress Spring that left contact knife upper end and right contact knife upper end close up mutually, the ejector pin impelling it to keep relative outer opening force is folded with between the lower end of described two clamping plate, the upper end of described two clamping plate clamps respectively and is resisted against on the end, upper end of left contact knife and the end, upper end of right contact knife.
2. high-voltage isolation grounding switch according to claim 1, it is characterized in that: described ejector pin correspondence is through the upper end of left contact knife and the upper end of right contact knife, and the axial length of described ejector pin is greater than the spacing between left contact knife upper end lateral surface and right contact knife upper end lateral surface, the axial two ends of described ejector pin are also equipped with projection, and the lower end correspondence of described two clamping plate is provided with the jack plugged with described projection.
3. high-voltage isolation grounding switch according to claim 1, it is characterized in that: described base is also equiped with ground connection moving contact component, described ground connection moving contact component includes to form with lower fixed contact and opens, close a floodgate the ground connection moving contact coordinated, ground connection main shaft, spring and connecting lever part, described ground connection main shaft is fixed on base, the center of connecting lever part is hinged to be fixed on ground connection main shaft, one end of connecting lever part is connected with ground connection moving contact, the other end of connecting lever part is provided with hinged rotary spacing groove, on described base, corresponding being provided with forms the spacing spacer pin coordinated with described hinged rotary spacing groove, described connecting lever part is also provided with an elongated end between the ends, described elongated end to be strained with base by spring and is connected.
4. high-voltage isolation grounding switch according to claim 1, it is characterized in that: described left contact knife and right contact knife are also connected with take-up device, described take-up device includes insulated tension pole, transmission arm and connecting axle, described connecting axle is fixed on base, one end and the connecting axle of transmission arm are hinged, the other end of transmission arm is connected with one end of insulated tension pole, and the other end of insulated tension pole and the middle part of left and right contact knife are fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547731.8U CN204857552U (en) | 2015-07-27 | 2015-07-27 | High voltage isolation earthing switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547731.8U CN204857552U (en) | 2015-07-27 | 2015-07-27 | High voltage isolation earthing switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204857552U true CN204857552U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520547731.8U Active CN204857552U (en) | 2015-07-27 | 2015-07-27 | High voltage isolation earthing switch |
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| CN (1) | CN204857552U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742087A (en) * | 2016-04-26 | 2016-07-06 | 亚洲电力设备(深圳)股份有限公司 | High-current isolation switch |
| CN107578946A (en) * | 2017-09-19 | 2018-01-12 | 浙江纪元高压电器开关有限公司 | Be flexible coupling fingertip high current rotary separation switch |
| CN108922816A (en) * | 2018-07-10 | 2018-11-30 | 珠海南自电气系统工程有限公司 | Earthed system is isolated in sextupole traction rectifier transformer |
| CN108922817A (en) * | 2018-07-10 | 2018-11-30 | 深圳市地铁集团有限公司运营总部 | Earthed system is isolated in traction rectifier transformer |
-
2015
- 2015-07-27 CN CN201520547731.8U patent/CN204857552U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742087A (en) * | 2016-04-26 | 2016-07-06 | 亚洲电力设备(深圳)股份有限公司 | High-current isolation switch |
| CN107578946A (en) * | 2017-09-19 | 2018-01-12 | 浙江纪元高压电器开关有限公司 | Be flexible coupling fingertip high current rotary separation switch |
| CN108922816A (en) * | 2018-07-10 | 2018-11-30 | 珠海南自电气系统工程有限公司 | Earthed system is isolated in sextupole traction rectifier transformer |
| CN108922817A (en) * | 2018-07-10 | 2018-11-30 | 深圳市地铁集团有限公司运营总部 | Earthed system is isolated in traction rectifier transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |