CN114695010B - High-voltage isolating switch with self-locking function - Google Patents
High-voltage isolating switch with self-locking function Download PDFInfo
- Publication number
- CN114695010B CN114695010B CN202210428973.XA CN202210428973A CN114695010B CN 114695010 B CN114695010 B CN 114695010B CN 202210428973 A CN202210428973 A CN 202210428973A CN 114695010 B CN114695010 B CN 114695010B
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- Prior art keywords
- connecting rod
- self
- locking function
- switch
- voltage isolating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/04—Interlocking mechanisms
- H01H31/08—Interlocking mechanisms for interlocking two or more parts of the mechanism for operating contacts
Abstract
The utility model provides a high voltage isolator with self-locking function includes the switch base, the switch base be equipped with two insulating columns, be equipped with moving contact and static contact on two insulating columns respectively to be equipped with cardboard and mounting panel between moving contact, static contact and the insulating column respectively, the static contact on be equipped with the support, it has the plug-in strip to articulate in the support, moving contact and static contact between link to each other through the plug-in strip, be equipped with self-locking mechanism on the plug-in strip. The high-voltage isolating switch has a self-locking function, can be switched on and locked without manual operation, ensures the connection tightness between the knife switch and the movable contact, protects the personal safety of operators, has a simple and reliable structure, is convenient to operate, and is suitable for popularization and application.
Description
Technical Field
The invention relates to an isolating switch, in particular to a high-voltage isolating switch with a self-locking function.
Background
The high-voltage isolating switch is a common switching device in power plants and transformer substation electrical systems, is mainly used for guaranteeing the safety of high-voltage equipment in the overhaul process, and has a great influence on the safe operation of the power plants and the transformer substations. In order to ensure that safety accidents can not occur due to loosening of the knife switch in the use process of the high-voltage isolating switch, most of the high-voltage isolating switches commonly used in the market at present are provided with locking mechanisms, the locking mechanisms ensure connection tightness between the knife switch and the moving contact, however, the existing locking mechanisms are not separated from manual operation, electric arcs can be generated between the knife switch and the moving contact in the operation process of the locking mechanisms, and the operation personnel are extremely easy to be injured.
Disclosure of Invention
The invention provides a high-voltage isolating switch with a self-locking function, which aims to solve the defects in the prior art.
The utility model provides a high voltage isolation switch with self-locking function includes the switch base, the switch base be equipped with two bilateral symmetry's insulating column, be equipped with the moving contact on being located the insulating column on switch base left side, be equipped with the static contact on being located the insulating column on switch base right side to be equipped with cardboard and mounting panel between moving contact, static contact and the insulating column respectively, the static contact on be equipped with the support, articulated in the support have the plug-in strip, moving contact and static contact between link to each other through the plug-in strip, be equipped with self-locking mechanism on the plug-in strip, self-locking mechanism include first connecting rod, second connecting rod and spring link, the one end of first connecting rod articulates in the base on the mounting panel, the middle part of first connecting rod is equipped with the pin, the pin activity locate the waist inslot on the plug-in strip, the other end of first connecting rod links to each other with the one end of second connecting rod, the middle part of second connecting rod links to each other with the first connecting rod through the spring link, the other end of second connecting rod is equipped with the claw head with cardboard looks joint.
Preferably, a damping gasket is arranged on the bottom surface of the switch base.
Preferably, a fixed block is arranged between the switch base and the insulating column.
Preferably, the moving contact, the fixed contact and the insulating column are connected through bolts.
Preferably, one end of the knife blade hinged in the support is provided with a torsion spring.
In order to ensure the use safety of the self-locking mechanism, preferably, the first connecting rod, the second connecting rod, the spring connecting rod, the pin rod and the claw head are all provided with protective layers.
In order to facilitate the clamping connection of the claw head and the clamping plate, preferably, the bottom end surface of the claw head is an inclined surface.
The beneficial effects are that: the invention discloses a high-voltage isolating switch with a self-locking function, which has the self-locking function, can be closed and locked without relying on manual operation, ensures the connection tightness between a knife switch and a movable contact, protects the personal safety of operators, has a simple and reliable structure, is convenient to operate, and is suitable for popularization and application.
Drawings
FIG. 1 is a schematic diagram of a high voltage isolation switch in a closed state;
FIG. 2 is a schematic diagram of the structure of the high voltage isolation switch in the off state;
in the figure: 1. switch base 11, shock attenuation gasket 12, fixed block 2, insulating column 3, moving contact 31, cardboard 4, stationary contact 41, mounting panel 42, base 5, support 6, knife switch 61, waist type groove 7, self-locking mechanism 71, first connecting rod 72, second connecting rod 73, spring connecting rod 74, pin 75, claw head.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present invention, which examples are intended to be illustrative only and are not to be construed as limiting the scope of the present invention.
As shown in fig. 1, a high-voltage isolating switch with self-locking function comprises a switch base 1, wherein the switch base 1 is provided with two insulating columns 2 which are bilaterally symmetrical, a moving contact 3 is arranged on the insulating column 2 which is positioned on the left side of the switch base 1, a fixed contact 4 is arranged on the insulating column 2 which is positioned on the right side of the switch base 1, a clamping plate 31 and a mounting plate 41 are respectively arranged among the moving contact 3, the fixed contact 4 and the insulating column 2, a support 5 is arranged on the fixed contact 4, a knife 6 is hinged in the support 5, the moving contact 3 and the fixed contact 4 are connected through the knife 6, and a self-locking mechanism 7 is arranged on the knife 6.
The self-locking mechanism 7 comprises a first connecting rod 71, a second connecting rod 72 and a spring connecting rod 73, one end of the first connecting rod 71 is hinged in the base 42 on the mounting plate 41, a pin rod 74 is arranged in the middle of the first connecting rod 71, the pin rod 74 is movably arranged in the waist-shaped groove 61 on the knife 6, the other end of the first connecting rod 71 is connected with one end of the second connecting rod 72, the middle of the second connecting rod 72 is connected with the first connecting rod 71 through the spring connecting rod 73, and a claw head 75 which is clamped with the clamping plate 31 is arranged at the other end of the second connecting rod 72.
In this embodiment, a shock pad 11 is disposed on the bottom surface of the switch base 1.
In this embodiment, a fixing block 12 is disposed between the switch base 1 and the insulating column 2.
In this embodiment, the moving contact 3, the fixed contact 4 and the insulating column 2 are connected by bolts.
In this embodiment, a torsion spring is provided at one end of the blade 6 hinged in the support 5.
In order to ensure the safety of the self-locking mechanism 7, in this embodiment, the first link 71, the second link 72, the spring link 73, the pin 74 and the jaw 75 are all provided with protection layers.
In order to facilitate the clamping between the claw 75 and the clamping plate 31, in this embodiment, the bottom end surface of the claw 75 is an inclined surface.
The working conditions are as follows: as shown in fig. 1 and fig. 2, the high-voltage isolating switch is in an open state, an operator controls the knife 6 to start closing, in the closing process of the knife 6, due to the existence of the base 42 and the pin 74, the first connecting rod 71 starts to close to the knife 6, the second connecting rod 72 is driven by the knife 6 and the first connecting rod 71 to close to the clamping plate 31 until the claw 75 on the second connecting rod 72 is clamped with the clamping plate 31 under the action of the spring connecting rod 73, the self-locking mechanism 7 is in a locking state, and the high-voltage isolating switch is in a closed state.
The high-voltage isolating switch has a self-locking function, can be switched on and locked without manual operation, ensures the connection tightness between the knife switch and the movable contact, protects the personal safety of operators, has a simple and reliable structure, is convenient to operate, and is suitable for popularization and application.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The utility model provides a high voltage isolator with self-locking function, its characterized in that, including the switch base, the switch base be equipped with two bilateral symmetry's insulating column, be equipped with the moving contact on being located the insulating column of switch base left side, be equipped with the static contact on being located the insulating column on switch base right side to be equipped with cardboard and mounting panel between moving contact, static contact and the insulating column respectively, the static contact on be equipped with the support, articulated in the support has the plug-in strip, moving contact and static contact between link to each other through the plug-in strip, be equipped with self-locking mechanism on the plug-in strip, self-locking mechanism include first connecting rod, second connecting rod and spring connecting rod, the one end of first connecting rod articulates in the base on the mounting panel, the middle part of first connecting rod is equipped with the pin, the pin activity locate waist type inslot on the plug-in strip, the other end of first connecting rod links to each other with the one end of second connecting rod, the middle part of second connecting rod links to each other with first connecting rod through the spring connecting rod, the other with the other end of second connecting rod is equipped with the claw that links to each other with the cardboard.
2. The high-voltage isolating switch with self-locking function as defined in claim 1, wherein a shock pad is arranged on the bottom surface of the switch base.
3. The high-voltage isolating switch with self-locking function as defined in claim 1, wherein a fixed block is arranged between the switch base and the insulating column.
4. The high-voltage isolating switch with the self-locking function according to claim 1, wherein the moving contact, the fixed contact and the insulating column are connected through bolts.
5. The high-voltage isolating switch with self-locking function as claimed in claim 1, wherein one end of the knife blade hinged in the support is provided with a torsion spring.
6. The high-voltage isolating switch with self-locking function as defined in claim 1, wherein the first connecting rod, the second connecting rod, the spring connecting rod, the pin rod and the claw head are all provided with protective layers.
7. The high-voltage isolating switch with self-locking function as defined in claim 1, wherein the bottom end surface of the claw head is an inclined surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428973.XA CN114695010B (en) | 2022-04-22 | 2022-04-22 | High-voltage isolating switch with self-locking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428973.XA CN114695010B (en) | 2022-04-22 | 2022-04-22 | High-voltage isolating switch with self-locking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114695010A CN114695010A (en) | 2022-07-01 |
| CN114695010B true CN114695010B (en) | 2023-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210428973.XA Active CN114695010B (en) | 2022-04-22 | 2022-04-22 | High-voltage isolating switch with self-locking function |
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| Country | Link |
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| CN (1) | CN114695010B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901102A (en) * | 1960-04-28 | 1962-07-11 | Ass Elect Ind | Improvements in switchgear operating mechanism |
| CN105070579A (en) * | 2015-08-06 | 2015-11-18 | 大唐岩滩水力发电有限责任公司 | Outdoor high-voltage isolated switch |
| CN205140846U (en) * | 2015-11-20 | 2016-04-06 | 中国西电电气股份有限公司 | Take high voltage isolator of auto -lock |
| CN208240557U (en) * | 2018-06-13 | 2018-12-14 | 西安豪特电力开关制造有限公司 | A kind of New Type Isolating Switch |
| CN109559930A (en) * | 2018-12-04 | 2019-04-02 | 池州江南电力设备有限公司 | A kind of vertical open type outdoor high-voltage alternating current isolating switch of novel twin columns |
| CN209447733U (en) * | 2019-04-01 | 2019-09-27 | 江苏靖江互感器股份有限公司 | Self-locking device with net post disconnecting switch |
| CN111933475A (en) * | 2020-07-27 | 2020-11-13 | 国网内蒙古东部电力有限公司电力科学研究院 | High-strength aging-resistant totally-enclosed outdoor high-voltage alternating-current isolating switch |
| CN212648114U (en) * | 2020-04-22 | 2021-03-02 | 国网福建省电力有限公司电力科学研究院 | Isolator based on flexible coupling and electrodynamic force effect |
| CN213093118U (en) * | 2020-11-11 | 2021-04-30 | 辽宁华隆电力科技股份有限公司 | High-voltage isolating switch |
-
2022
- 2022-04-22 CN CN202210428973.XA patent/CN114695010B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB901102A (en) * | 1960-04-28 | 1962-07-11 | Ass Elect Ind | Improvements in switchgear operating mechanism |
| CN105070579A (en) * | 2015-08-06 | 2015-11-18 | 大唐岩滩水力发电有限责任公司 | Outdoor high-voltage isolated switch |
| CN205140846U (en) * | 2015-11-20 | 2016-04-06 | 中国西电电气股份有限公司 | Take high voltage isolator of auto -lock |
| CN208240557U (en) * | 2018-06-13 | 2018-12-14 | 西安豪特电力开关制造有限公司 | A kind of New Type Isolating Switch |
| CN109559930A (en) * | 2018-12-04 | 2019-04-02 | 池州江南电力设备有限公司 | A kind of vertical open type outdoor high-voltage alternating current isolating switch of novel twin columns |
| CN209447733U (en) * | 2019-04-01 | 2019-09-27 | 江苏靖江互感器股份有限公司 | Self-locking device with net post disconnecting switch |
| CN212648114U (en) * | 2020-04-22 | 2021-03-02 | 国网福建省电力有限公司电力科学研究院 | Isolator based on flexible coupling and electrodynamic force effect |
| CN111933475A (en) * | 2020-07-27 | 2020-11-13 | 国网内蒙古东部电力有限公司电力科学研究院 | High-strength aging-resistant totally-enclosed outdoor high-voltage alternating-current isolating switch |
| CN213093118U (en) * | 2020-11-11 | 2021-04-30 | 辽宁华隆电力科技股份有限公司 | High-voltage isolating switch |
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| Publication number | Publication date |
|---|---|
| CN114695010A (en) | 2022-07-01 |
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