CN202549643U - Buffer for high-voltage switch - Google Patents
Buffer for high-voltage switch Download PDFInfo
- Publication number
- CN202549643U CN202549643U CN 201220052360 CN201220052360U CN202549643U CN 202549643 U CN202549643 U CN 202549643U CN 201220052360 CN201220052360 CN 201220052360 CN 201220052360 U CN201220052360 U CN 201220052360U CN 202549643 U CN202549643 U CN 202549643U
- Authority
- CN
- China
- Prior art keywords
- piston
- voltage switch
- cylinder body
- screw rod
- cushion block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229910052573 porcelain Inorganic materials 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 abstract 1
- 238000009423 ventilation Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/60—Mechanical arrangements for preventing or damping vibration or shock
Abstract
The utility model discloses a buffer for a high-voltage switch. The buffer for the high-voltage switch comprises a cylinder body with an opening at the upper end. A piston is axially, hermetically and slideably assembled in the cylinder body. A spring is installed between the piston and the bottom of the cylinder body in a resisting way. A ring limiting edge which is used for preventing the piston from being separated from the cylinder body is arranged at the opening at the upper end of the cylinder body. A conductive rod of the high-voltage switch penetrates through an inner hole of the ring limiting edge and is matched with the piston in a contact way. A ventilation hole is arranged in the bottom of the cylinder body. By matching the piston with the high-voltage switch, when the conductive rod is impacted and is in contact with the piston, the spring and air in the cylinder body are compressed to buffer the impact to the conductive rod and the impact to a porcelain insulator is reduced; and when the conductive rod is restored, the spring pushes the piston to be restored.
Description
Technical field
The utility model relates to a kind of high voltage switchgear, is specifically related to the buffer unit that high pressure, extra-high-voltage isolated switch and earthed switch close, separating brake is used.
Background technology
Along with progressively carrying out of country's three vertical three horizontal looped network extra-high voltage grid construction; For high pressure, ultra high voltage switchgear provide huge market potential; Like isolating switch, earthed switch, meanwhile require high pressure, ultra high voltage switchgear must possess good serviceability and reliability.Isolating switch and earthed switch be because port distance is big, closes a floodgate and during the earthed switch separating brake at isolating switch, and conducting rod separately produces porcelain vase etc. and to impact under action of inertia, this shock effect the serviceability and the reliability of product.
The utility model content
The purpose of the utility model provides a kind of conducting rod that can reduce high pressure, extra-high-voltage isolated switch and earthed switch and is closing, porcelain vase is being produced the buffer that impacts during separating brake.
The utility model adopts following technical scheme: a kind of used for high-voltage switch buffer; The cylinder body that comprises open upper end; The axial seal slidable fit has piston in the cylinder body, is top-loaded with spring between said piston and the cylinder base, and the open upper end place of said cylinder body has the annular stop edge that prevents said piston disengaging cylinder body; The endoporus on said annular stop edge be used to supply the conducting rod of high-voltage switch gear to pass in case with said piston contact matching, and cylinder base offers air vent hole.
Has the cylindrical section that stretches out in the through hole by said limited cover on the upper surface of said piston.
Said piston is used for the conducting rod contact matching with high-voltage switch gear through the last cushion block on the end face that is fixed on its cylindrical section, offers on the cylindrical section of piston with said and goes up the groove that the cushion block card is joined.
The groove of said piston is the cone tank that the upper end is little, the lower end is big, and the said cushion block of going up is the cone structure that coincide and cooperate with said cone tank.
Said cylinder base is fixed with along cylinder body is axially extended and is used for and the fixing screw rod of the fixed contact of high-voltage switch gear; The upper end of stretching in the cylinder body of screw rod is provided with the fixture block that cooperates with the cylinder base inner surface, is installed with on the screw rod and cylinder base outer surface nut engaged.
Said screw rod cooperates with said piston roof pressure through the lower cushion block that is fixed on the fixture block, offers the groove of joining with said lower cushion block card on the upper surface of said fixture block.
Groove on the said fixture block is the cone tank that the upper end is little, the lower end is big, and said lower cushion block is the cone structure that coincide and cooperate with said cone tank.
Be provided with rubber blanket between the fixture block of said screw rod and the cylinder base.
Adopt the buffer of said structure, the axial seal slidable fit has piston in the cylinder body of buffer, is top-loaded with spring between piston and the cylinder base; Through with the cooperating of high-voltage switch gear; When conducting rod produces impact, contact with piston, the impact that the air in spring and the cylinder body all compresses conducting rod cushions, and reduces the impact to porcelain vase; When conducting rod resetted, spring promoted piston reset; In addition, the bottom of cylinder body offers air vent hole, can avoid excessive branch, the combined floodgate that influences high-voltage switch gear of air drag.
Description of drawings
Fig. 1 is the example structure sketch map of the utility model.
Embodiment
The embodiment of a kind of used for high-voltage switch buffer of the utility model: as shown in Figure 1; The cylinder body 3 of this buffer is the tubular structure of open upper end; Endwisely slipping in the cylinder body 3 is equipped with piston 9, annular stop is arranged along 8 at the opening part of cylinder body 3 through screw, and spacing edge 8 is used for preventing that piston 9 breaks away from cylinder body 3 at moving process; Said piston 9 is a multidiameter; The reduced diameter section of multidiameter stretches out the endoporus on said spacing edge 8, is top-loaded with spring 6 between the inwall of the end face of the enlarged diameter section of multidiameter and cylinder body 3 bottoms, and offers annular groove on the circumference of the enlarged diameter section of multidiameter; O RunddichtringO 7 is housed, in order to realize the sealing of piston 9 and cylinder body 3 inwalls in the annular groove.During concrete operations; The conducting rod of high-voltage switch gear contacts and promotes piston 9 compression springs 6 with the upper surface of piston 9 under effect of inertia; Piston 9 receives the resistance of spring 6 and cylinder body 3 inner airs; Thereby realize the buffering to conducting rod, in order to prevent the excessive motion that influences conducting rod of air drag, said cylinder body 3 bottoms offer air vent hole 11.
Said cylinder body 3 bottoms are equipped with along the axially extended screw rod 1 of cylinder body; Screw rod 1 stretches into upper ends in the cylinder body 3 and is fixed with the fixture block with cylinder body 3 bottom interior surface contact matching; Be installed with nut 2 on the screw rod 1 with cylinder body 3 bottom outer surface contact matching; And between nut 2 and cylinder body 3, be arranged with pad 12 on the screw rod 1, realize that through fastening nut 2 screw rod 1 is fixed on the cylinder body 3.During concrete operations, whole device can directly be fixed on the fixed contact of high-voltage switch gear through screw rod 1, and is easy to operate.In piston 9 compression springs 6 motion processes, said piston 9 finally with screw rod 1 on fixture block contact, in order to reduce the impact of 1 pair of cylinder body 3 bottom of screw rod, be top-loaded with rubber blanket 4 between the fixture block of said screw rod 1 and cylinder body 3 bottoms.
Offer the cone tank that the upper end is little, the lower end is big on the end face of the reduced diameter section of said piston 9; Be installed with in this cone tank with its cone structure cooperate that coincide on cushion block 10; Piston 9 reduces the impact of conducting rod to piston 9 through the conducting rod contact matching of last cushion block 10 with high-voltage switch gear; Offer the cone tank that the upper end is little, the lower end is big on the fixture block upper surface of said screw rod 1, be installed with in this cone tank and its cone structure lower cushion block 5 that coincide and cooperate, screw rod 1 reduces the impact of 9 pairs of screw rods 1 of piston through lower cushion block 5 and piston 9 contact matching.
In the foregoing description; Said piston 9 is a multidiameter, in other embodiments, also can think and on the upper surface of single-shaft configuration piston, fix a cylindrical section; Cylindrical section can certainly be set, and the conducting rod of high-voltage switch gear directly stretches in the cylinder body and contacts with piston.
When the foregoing description is used on isolating switch, be installed in isolating switch and be in the combined floodgate ultimate position, when on earthed switch, using; Be installed in earthed switch and be in the separating brake ultimate position; After the conducting rod of isolating switch or earthed switch touched cushion block 10, separately conducting rod was to pressing down piston 9 under effect of inertia, and this moment, piston 9 received air and the resistance of spring 6 in the cylinder pressure body 3; This resistance slows down the speed that piston 9 moves downward, thereby conducting rod is played cushioning effect.After conducting rod and 10 disengagings of last cushion block, piston 9 is returned to original position again under the effect of spring 6.
Claims (8)
1. used for high-voltage switch buffer; It is characterized in that: the cylinder body that comprises open upper end; The axial seal slidable fit has piston in the cylinder body, is top-loaded with spring between said piston and the cylinder base, and the open upper end place of said cylinder body has the annular stop edge that prevents said piston disengaging cylinder body; The endoporus on said annular stop edge be used to supply the conducting rod of high-voltage switch gear to pass in case with said piston contact matching, and cylinder base offers air vent hole.
2. used for high-voltage switch buffer according to claim 1 is characterized in that: have the cylindrical section that stretches out in the through hole by said limited cover on the upper surface of said piston.
3. used for high-voltage switch buffer according to claim 2; It is characterized in that: said piston is used for the conducting rod contact matching with high-voltage switch gear through the last cushion block on the end face that is fixed on its cylindrical section, offers on the cylindrical section of piston with said and goes up the groove that the cushion block card is joined.
4. used for high-voltage switch buffer according to claim 3 is characterized in that: the groove of said piston is the cone tank that the upper end is little, the lower end is big, and the said cushion block of going up is the cone structure that coincide and cooperate with said cone tank.
5. according to any described used for high-voltage switch buffer of claim 1-4; It is characterized in that: said cylinder base is fixed with along cylinder body is axially extended and is used for and the fixing screw rod of the fixed contact of high-voltage switch gear; The upper end of stretching in the cylinder body of screw rod is provided with the fixture block that cooperates with the cylinder base inner surface, is installed with on the screw rod and cylinder base outer surface nut engaged.
6. used for high-voltage switch buffer according to claim 5 is characterized in that: said screw rod cooperates with said piston roof pressure through the lower cushion block that is fixed on the fixture block, offers the groove of joining with said lower cushion block card on the upper surface of said fixture block.
7. used for high-voltage switch buffer according to claim 6 is characterized in that: the groove on the said fixture block is the cone tank that the upper end is little, the lower end is big, and said lower cushion block is the cone structure that coincide and cooperate with said cone tank.
8. used for high-voltage switch buffer according to claim 7 is characterized in that: be provided with rubber blanket between the fixture block of said screw rod and the cylinder base.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220052360 CN202549643U (en) | 2012-02-17 | 2012-02-17 | Buffer for high-voltage switch |
| PCT/CN2012/000899 WO2013120238A1 (en) | 2012-02-17 | 2012-06-30 | Cushion for high-voltage switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220052360 CN202549643U (en) | 2012-02-17 | 2012-02-17 | Buffer for high-voltage switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202549643U true CN202549643U (en) | 2012-11-21 |
Family
ID=47170234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220052360 Expired - Lifetime CN202549643U (en) | 2012-02-17 | 2012-02-17 | Buffer for high-voltage switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202549643U (en) |
| WO (1) | WO2013120238A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912622A (en) * | 2012-12-31 | 2014-07-09 | 北京双杰电气股份有限公司 | Damping device and switching device |
| CN104290052A (en) * | 2014-06-19 | 2015-01-21 | 国家电网公司 | Buffer assembling tool |
| CN105393322A (en) * | 2013-07-19 | 2016-03-09 | 通用电气公司 | Electrical switching apparatus including adjustable damper assembly |
| CN106960738A (en) * | 2017-04-27 | 2017-07-18 | 南京南瑞继保电气有限公司 | A kind of high-speed circuit breaker mixed type buffer |
| CN107464720A (en) * | 2017-08-10 | 2017-12-12 | 河南平高电气股份有限公司 | Static contact component and the disconnecting switch using the component |
| CN107578944A (en) * | 2017-07-24 | 2018-01-12 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN114664582A (en) * | 2021-12-24 | 2022-06-24 | 平高集团有限公司 | Breaker operating mechanism opening buffer |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2221826Y (en) * | 1994-11-07 | 1996-03-06 | 常州市东南电力设备厂 | Gate-switching off air buffer of vacuum circuit breaker |
| JP4488911B2 (en) * | 2005-01-13 | 2010-06-23 | 株式会社東芝 | Vacuum shut-off device |
| CN2935443Y (en) * | 2006-08-14 | 2007-08-15 | 河南森源电气股份有限公司 | Porcelain vase fixation pedestal buffer structure for outdoor isolating switch |
| CN201252013Y (en) * | 2008-09-05 | 2009-06-03 | 河南森源电气股份有限公司 | Oil buffer for high-voltage alternating current breaker |
-
2012
- 2012-02-17 CN CN 201220052360 patent/CN202549643U/en not_active Expired - Lifetime
- 2012-06-30 WO PCT/CN2012/000899 patent/WO2013120238A1/en active Application Filing
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912622A (en) * | 2012-12-31 | 2014-07-09 | 北京双杰电气股份有限公司 | Damping device and switching device |
| CN103912622B (en) * | 2012-12-31 | 2016-08-03 | 北京双杰电气股份有限公司 | Damping unit and switching device |
| CN105393322A (en) * | 2013-07-19 | 2016-03-09 | 通用电气公司 | Electrical switching apparatus including adjustable damper assembly |
| US9595404B2 (en) | 2013-07-19 | 2017-03-14 | General Electric Company | Electrical switching apparatus including an adjustable damper assembly |
| CN105393322B (en) * | 2013-07-19 | 2017-07-04 | 通用电气公司 | Electrical switchgear including adjustable damper assembly |
| CN104290052A (en) * | 2014-06-19 | 2015-01-21 | 国家电网公司 | Buffer assembling tool |
| CN104290052B (en) * | 2014-06-19 | 2017-06-06 | 国家电网公司 | A kind of buffer assembly tooling |
| CN106960738A (en) * | 2017-04-27 | 2017-07-18 | 南京南瑞继保电气有限公司 | A kind of high-speed circuit breaker mixed type buffer |
| CN110473735A (en) * | 2017-07-24 | 2019-11-19 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN107578944A (en) * | 2017-07-24 | 2018-01-12 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN107578944B (en) * | 2017-07-24 | 2019-05-14 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN110491714A (en) * | 2017-07-24 | 2019-11-22 | 许继集团有限公司 | Disconnecting switch and its moving contact |
| CN110491714B (en) * | 2017-07-24 | 2021-08-03 | 许继集团有限公司 | Isolating switch and moving contact thereof |
| CN107464720B (en) * | 2017-08-10 | 2019-10-08 | 河南平高电气股份有限公司 | Static contact component and the disconnecting switch for using the component |
| CN107464720A (en) * | 2017-08-10 | 2017-12-12 | 河南平高电气股份有限公司 | Static contact component and the disconnecting switch using the component |
| CN114664582A (en) * | 2021-12-24 | 2022-06-24 | 平高集团有限公司 | Breaker operating mechanism opening buffer |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013120238A1 (en) | 2013-08-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PINGGAO GROUP CO., LTD. PINGGAO ELECTRIC CO., LTD. Free format text: FORMER OWNER: PINGGAO ELECTRIC CO., LTD., HENAN Effective date: 20140314 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: PINGGAO GROUP CO., LTD. Effective date: 20140314 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 467001 PINGDINGSHAN, HENAN PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140314 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: Pinggao Group Co., Ltd. Patentee after: Pinggao Electric Co., Ltd., Henan Patentee after: State Grid Henan Electric Power Company Patentee after: Electric Power Research Institute of State Grid Shandong Electric Power Company Address before: South East of Pingdingshan city in Henan province 467001 No. 22 Patentee before: Pinggao Group Co., Ltd. Patentee before: Pinggao Electric Co., Ltd., Henan |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |