CN114695010A - High-voltage isolating switch with self-locking function - Google Patents
High-voltage isolating switch with self-locking function Download PDFInfo
- Publication number
- CN114695010A CN114695010A CN202210428973.XA CN202210428973A CN114695010A CN 114695010 A CN114695010 A CN 114695010A CN 202210428973 A CN202210428973 A CN 202210428973A CN 114695010 A CN114695010 A CN 114695010A
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- CN
- China
- Prior art keywords
- connecting rod
- switch
- self
- locking function
- 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
A high-voltage isolating switch with a self-locking function comprises a switch base, wherein the switch base is provided with two insulating columns, a moving contact and a static contact are respectively arranged on the two insulating columns, a clamping plate and an installation plate are respectively arranged among the moving contact, the static contact and the insulating columns, a support is arranged on the static contact, a switch blade is hinged in the support, the moving contact and the static contact are connected through the switch blade, and a self-locking mechanism is arranged on the switch blade. The high-voltage isolating switch has a self-locking function, can be switched on and locked without depending on manual operation, guarantees the tightness of connection between the knife switch and the moving contact, protects the personal safety of operators, and is simple and reliable in structure, convenient to operate and 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 an electric system of a power plant and a transformer substation, is mainly used for ensuring the safety of high-voltage equipment in the maintenance process, and has great influence on the safe operation of the power plant and the transformer substation. In order to guarantee that the high-voltage isolating switch cannot cause safety accidents due to looseness of the switch blade in the using process, most of the common high-voltage isolating switches on the market are provided with locking mechanisms, the locking mechanisms guarantee connection tightness between the switch blade and the moving contact, however, the existing locking mechanisms cannot be operated manually, electric arcs can be generated between the switch blade and the moving contact in the operating process of the locking mechanisms, and the operators are very easily injured.
Disclosure of Invention
The invention provides a high-voltage isolating switch with a self-locking function, aiming at solving the defects of the prior art.
A high-voltage isolating switch with a self-locking function comprises a switch base, wherein the switch base is provided with two insulating columns which are bilaterally symmetrical, a moving contact is arranged on the insulating column which is positioned on the left side of the switch base, a static contact is arranged on the insulating column which is positioned on the right side of the switch base, a clamping plate and a mounting plate are respectively arranged among the moving contact, the static contact is provided with a support, a knife switch is hinged in the support, the moving contact and the static contact are connected through the knife switch, a self-locking mechanism is arranged on the knife switch and comprises a first connecting rod, a second connecting rod and a spring connecting rod, one end of the first connecting rod is hinged in a base on the mounting plate, the middle part of the first connecting rod is provided with a pin rod, the pin rod is movably arranged in a waist-shaped groove on the knife switch, the other end of the first connecting rod is connected with one end of the second connecting rod, the middle part of the second connecting rod is connected with the first connecting rod through the spring connecting rod, the other end of the second connecting rod is provided with a claw head which is clamped with the clamping plate.
Preferably, a shock absorption gasket is arranged on the bottom surface of the switch base.
Preferably, a fixing block is arranged between the switch base and the insulating column.
Preferably, the movable 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 between the claw head and the clamping plate, preferably, the bottom end surface of the claw head is an inclined plane.
Has the advantages that: the invention discloses a high-voltage isolating switch with a self-locking function, which has the self-locking function, can be switched on and locked without manual operation, ensures the connection tightness between a switch blade and a moving contact, protects the personal safety of operators, has simple and reliable structure and convenient operation, and is suitable for popularization and application.
Drawings
Fig. 1 is a schematic structural diagram of a high-voltage isolating switch in a closed state;
fig. 2 is a schematic structural diagram of a high-voltage isolating switch in an open state;
in the figure: 1. switch base 11, shock pad 12, fixed block 2, insulating column 3, moving contact 31, cardboard 4, static contact 41, mounting panel 42, base 5, support 6, knife switch 61, kidney-shaped groove 7, self-locking mechanism 71, first connecting rod 72, second connecting rod 73, spring link 74, pin 75, claw head.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the following examples and the accompanying drawings, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.
As shown in fig. 1, a high-voltage isolating switch with a self-locking function comprises a switch base 1, wherein the switch base 1 is provided with two bilaterally symmetrical insulating columns 2, a moving contact 3 is arranged on the insulating column 2 on the left side of the switch base 1, a static contact 4 is arranged on the insulating column 2 on the right side of the switch base 1, clamping plates 31 and mounting plates 41 are respectively arranged between the moving contact 3, the static contact 4 and the insulating column 2, a support 5 is arranged on the static contact 4, a switch blade 6 is hinged in the support 5, the moving contact 3 is connected with the static contact 4 through the switch blade 6, and a self-locking mechanism 7 is arranged on the switch blade 6.
Self-locking mechanism 7 include first connecting rod 71, second connecting rod 72 and spring connecting rod 73, the one end of first connecting rod 71 articulates in base 42 on mounting panel 41, and the middle part of first connecting rod 71 is equipped with pin 74, pin 74 activity locate in the waist-shaped groove 61 on plug-in strip 6, the other end of first connecting rod 71 links to each other with the one end of second connecting rod 72, the middle part of second connecting rod 72 passes through spring connecting rod 73 and links to each other with first connecting rod 71, the other end of second connecting rod 72 is equipped with the claw 75 with cardboard 31 looks joint.
In this embodiment, a shock absorbing 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 movable 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 knife 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 claw head 75 are all provided with a protective layer.
In order to facilitate the engagement between the claw head 75 and the clamping plate 31, in this embodiment, the bottom end surface of the claw head 75 is an inclined surface.
The working condition is as follows: as shown in fig. 1 and 2, the high-voltage disconnecting switch is in an open state, an operator controls the knife switch 6 to start closing, during the closing process of the knife switch 6, due to the existence of the base 42 and the pin 74, the first connecting rod 71 starts to approach the knife switch 6, the second connecting rod 72 approaches the catch plate 31 under the driving of the knife switch 6 and the first connecting rod 71, until the claw 75 on the second connecting rod 72 is clamped with the catch plate 31 under the action of the spring connecting rod 73, at this time, the self-locking mechanism 7 is in a locked state, and the high-voltage disconnecting switch is in a closed state.
The high-voltage isolating switch has a self-locking function, can be switched on and locked without depending on manual operation, guarantees the tightness of connection between the knife switch and the moving contact, protects the personal safety of operators, and is simple and reliable in structure, convenient to operate and suitable for popularization and application.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A high-voltage isolating switch with a self-locking function is characterized by comprising a switch base, wherein the switch base is provided with two insulating columns which are bilaterally symmetrical, a moving contact is arranged on the insulating column on the left side of the switch base, a static contact is arranged on the insulating column on the right side of the switch base, a clamping plate and a mounting plate are respectively arranged between the moving contact and the insulating column, a support is arranged on the static contact, a knife switch is hinged in the support, the moving contact and the static contact are connected through the knife switch, a self-locking mechanism is arranged on the knife switch and comprises a first connecting rod, a second connecting rod and a spring connecting rod, one end of the first connecting rod is hinged in a base on the mounting plate, a pin rod is arranged in the middle of the first connecting rod and movably arranged in a waist-shaped groove on the knife switch, and the other end of the first connecting rod is connected with one end of the second connecting rod, the middle part of the second connecting rod is connected with the first connecting rod through a spring connecting rod, and the other end of the second connecting rod is provided with a claw head clamped with the clamping plate.
2. The high-voltage isolating switch with the self-locking function according to claim 1, wherein a shock-absorbing gasket is arranged on the bottom surface of the switch base.
3. The high-voltage isolating switch with the self-locking function according to claim 1, wherein a fixing block is arranged between the switch base and the insulating column.
4. The high-voltage isolating switch with the self-locking function as claimed in claim 1, wherein the moving contact, the static contact and the insulating column are connected through bolts.
5. The high-voltage isolating switch with the 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 the self-locking function as claimed in claim 1, wherein the first connecting rod, the second connecting rod, the spring connecting rod, the pin rod and the claw head are provided with protective layers.
7. The high-voltage isolating switch with the self-locking function as claimed in claim 1, wherein the bottom end face of the claw head is an inclined slope.
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 true CN114695010A (en) | 2022-07-01 |
| CN114695010B 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 |
|---|---|
| CN114695010B (en) | 2023-07-07 |
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