CN110600311A - Outdoor earthing knife switch - Google Patents
Outdoor earthing knife switch Download PDFInfo
- Publication number
- CN110600311A CN110600311A CN201910708423.1A CN201910708423A CN110600311A CN 110600311 A CN110600311 A CN 110600311A CN 201910708423 A CN201910708423 A CN 201910708423A CN 110600311 A CN110600311 A CN 110600311A
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- CN
- China
- Prior art keywords
- switch
- contact
- earthing
- grounding
- outdoor
- 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.)
- Pending
Links
- 238000002955 isolation Methods 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 15
- 239000012212 insulator Substances 0.000 claims abstract description 10
- 230000003068 static effect Effects 0.000 claims description 23
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
- H01H21/02—Details
-
- 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
Landscapes
- Patch Boards (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The invention relates to an isolation switch, in particular to an outdoor earthing switch, which comprises an installation base, wherein two insulators are installed on the installation base, a first contact blade and a second contact blade are respectively installed on the insulators, a fixed contact is installed on the first contact blade, an isolation switch which can be in contact with the fixed contact is rotatably connected onto the second contact blade, an earthing switch base is arranged on the second contact blade, an earthing switch is detachably connected onto the earthing switch base, and an earthing fixed contact which is in contact with the earthing switch is arranged on the installation base. The grounding disconnecting link can realize the operation of grounding wires on the ground without additionally arranging a grounding device, and improves the working efficiency and the safety of the grounding wires. Compared with an isolating switch additionally provided with a grounding device, the grounding switch has the advantages of small volume, simple structure, quick wiring and convenient use.
Description
Technical Field
The invention relates to an isolation switch, in particular to an outdoor earthing switch.
Background
According to the safety requirements of power construction and maintenance operation, relevant operation can be carried out after safety measures such as power failure, electricity testing and grounding of the distribution network transformer rack and the distribution line are converted into maintenance states. The operation personnel of stopping power and testing electricity usually stand on ground and just can accomplish, and usually need climb up transformer rack or shaft tower and just can operate ground connection operation, and high altitude construction influences the security and the operating efficiency of operation.
Patent document "CN 201820630423.5" discloses an isolation switch grounding device, which is added on an isolation switch, so that an operator only needs to disconnect the contact between the isolation switch and a static contact on the ground, and close the grounding device after opening the isolation switch, thereby completing the grounding operation. However, the device needs to be additionally installed at the original isolation knife switch, so that the volume of the isolation knife switch is increased. Meanwhile, the grounding disconnecting link is also arranged on the other two insulators, the structure is complex, and the wiring and the switching on and off are inconvenient, so that the operation efficiency is also influenced.
Disclosure of Invention
The invention aims to solve the problems that the installation of the grounding device on the isolation switch in the prior art causes large volume, complicated structure and influences the operation efficiency, and provides the outdoor grounding switch which can quickly complete the operation of the grounding wire without installing the grounding device, thereby shortening the grounding operation time and improving the operation efficiency.
In order to solve the technical problems, the invention adopts the technical scheme that: the utility model provides an outdoor earthing knife-switch, including the installation base, install in two insulators are equipped with on the installation base, be equipped with first contact blade and second contact blade on the insulator respectively, the static contact is equipped with on the first contact blade, rotate on the second contact blade and be connected with can contact closed isolation knife-switch with the static contact, be provided with the earthing knife-switch base on the second contact blade, can dismantle on the earthing knife-switch base and be connected with the earthing knife-switch, be provided with on the installation base with the earthing static contact of earthing knife-switch contact.
And rotating the isolation disconnecting link to ensure that the isolation disconnecting link is not contacted with the fixed contact, connecting the grounding disconnecting link to the grounding disconnecting link base, and simultaneously contacting the grounding disconnecting link with the grounding fixed contact to finish the operation of the grounding wire.
Preferably, the grounding knife switch is hung on the grounding knife switch base. The grounding switch base is provided with a hook, and the grounding switch is provided with a hanging rod matched with the hook. The hanging rod of the grounding disconnecting link is hung on the hook to complete the installation of the grounding disconnecting link, and then the grounding disconnecting link is contacted with the grounding static contact to complete the grounding wire operation, so that the operation is quick, simple and convenient.
Preferably, the cross section of the hanging rod is semicircular. The design can facilitate the grounding switch to be hung in the grounding switch base, and can ensure that the grounding switch is not easy to fall off from the base when closed.
Preferably, two ends of the grounding disconnecting link are provided with round holes. When the grounding switch is hung in or taken out of the grounding switch base, ground operators can complete operation by inserting the operating rod into the circular hole at the upper end. When the grounding disconnecting link is positioned in the grounding disconnecting link base and needs to be closed or pulled open, the operation can be completed by inserting the insulating operation rod into the lower end round hole. The staff can accomplish the operation of dismouting, switching on and off ground connection switch subaerial use the operating rod, and is easy and simple to handle.
Preferably, the mounting base is provided with a ground connection site. When the disconnecting link is used for three-phase power connection of a power grid, the ground wire is connected to the grounding connection position, the isolation disconnecting link can be directly connected in series and then connected into the rack or the tower, and the power failure line and the equipment are well grounded when the maintenance state is ensured to be switched over.
Preferably, the isolation switch is provided with an anti-misoperation rod, and one end of the anti-misoperation rod is located on one side of the grounding switch close to the static contact when the grounding switch is in contact with the grounding static contact. The earthing knife-switch can be pulled open by forcibly closing the isolating knife-switch under the closing state, thereby avoiding the isolating knife-switch and the earthing knife-switch from being in the closing position at the same time and achieving the purpose of preventing misoperation.
Preferably, the isolation switch is provided with a mounting rack, and the anti-misoperation rod is mounted on the mounting rack.
Preferably, the isolation disconnecting link comprises two contact pieces and a pull ring arranged between the two contact pieces, the second contact piece is provided with a mounting plate, one ends of the two contact pieces are respectively arranged on two sides of the mounting plate and are rotatably connected with the second contact piece through a clamping mechanism, and the other end of each contact piece is connected with the pull ring through the clamping mechanism. Under the action of the clamping mechanism, the contact blade forms elastic pressure on the static contact and the second contact blade, and good contact between the contact blade and the static contact and the second contact blade is ensured. The pull ring is fixed on the movable contact through a bolt to provide an acting point for the pulling and closing operation of the disconnecting link.
Preferably, the clamping mechanism includes a fastening member (which may be a bolt, a nut) for connecting the contact pieces and an elastic member (which may be a spring) for pressing the contact pieces.
Compared with the prior art, the beneficial effects are: the grounding disconnecting link can realize the operation of grounding wires on the ground without additionally arranging a grounding device, and improves the working efficiency and the safety of the grounding wires. Compared with an isolating switch additionally provided with a grounding device, the grounding switch has the advantages of small volume, simple structure, quick wiring and convenient use.
Drawings
Fig. 1 is a schematic perspective view of an outdoor earthing knife-switch of the present invention;
FIG. 2 is a schematic view of a second contact blade according to the present invention;
FIG. 3 is a schematic structural diagram of the grounding knife-switch of the present invention;
fig. 4 is a schematic structural diagram of the isolation switch of the present invention.
Wherein: 1. installing a base; 101. a ground connection site; 2. an insulator; 3. a first contact blade; 4. a second contact blade; 5. static contact; 6. isolating the disconnecting link; 601. a misoperation prevention lever; 602. a mounting frame; 603. a contact piece; 604. a pull ring; 605. a bolt; 606. a nut; 607. a spring; 7. a grounding switch base; 701. hooking; 8. a grounding disconnecting link; 801. a hanging rod; 802. a circular hole; 9. and (5) grounding and static contacts.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1
Fig. 1 shows an embodiment of an outdoor earthing switch, which includes an installation base 1, two insulators 2 installed on the installation base 1, a first contact blade 3 and a second contact blade 4 are respectively installed on the insulators 2, a static contact 5 is installed on the first contact blade 3, an isolation switch 6 is rotatably connected to the second contact blade 4, and the isolation switch 6 can be contacted with or disconnected from the static contact 5 through rotation relative to the second contact blade 4. The second contact blade 4 is provided with a grounding switch base 7, the grounding switch base 7 is detachably connected with a grounding switch 8, and the mounting base 1 is provided with a grounding static contact 9 contacted with the grounding switch 8.
The installation base 1 is provided with a grounding connection position 101, when the disconnecting link is used for three-phase power grid connection, the ground wire is connected to the grounding connection position, the isolation disconnecting link can be directly connected in series and then connected into a rack or a tower, and power failure lines and equipment are well grounded when the maintenance state is ensured.
The working principle or working process of the invention is as follows: the isolating switch 6 is rotated so that the isolating switch 6 is not in contact with the stationary contact 5. The grounding knife switch 8 is connected to the grounding knife switch base 7, and meanwhile, the grounding knife switch 8 is contacted with the grounding static contact 9, and therefore the operation of the grounding wire can be completed.
The invention has the beneficial effects that: the disconnecting link can realize the operation of grounding wires on the ground without additionally arranging a grounding device, and improves the operating efficiency and the safety of the grounding wires. Compared with an isolating switch additionally provided with a grounding device, the grounding switch has the advantages of small volume, simple structure, quick wiring and convenient use.
Example 2
In this embodiment, on the basis of embodiment 1, as shown in fig. 2 to 3, the grounding knife switch 8 is hung on the grounding knife switch base 7.
Specifically, the earthing switch base 7 is provided with a hook 701, and the earthing switch 8 is provided with a hanging rod 801 engaged with the hook 701. The hanging rod 801 of the grounding disconnecting link 8 is hung on the hook 701 to complete the installation of the grounding disconnecting link 8, and then the grounding disconnecting link 8 is contacted with the grounding static contact 9 to complete the grounding wire operation, so that the operation is quick, simple and convenient. The earthing knife-switch 7 can also be provided with a hanging rod, and the earthing knife-switch 8 is provided with a hook matched with the hanging rod.
The cross section of the hanging rod 801 is semicircular. The design can facilitate the grounding switch to be hung in the grounding switch base, and can ensure that the grounding switch is not easy to fall off from the base when closed.
Wherein, the two ends of the grounding knife-switch 8 are provided with round holes 802. When the grounding switch is hung in or taken out of the grounding switch base, ground operators can complete operation by inserting the operating rod into the circular hole at the upper end. When the grounding disconnecting link is positioned in the grounding disconnecting link base and needs to be closed or pulled open, the operation can be completed by inserting the insulating operation rod into the lower end round hole. The staff can accomplish the operation of dismouting, switching on and off ground connection switch subaerial use the operating rod, and is easy and simple to handle.
The remaining technical features are consistent with embodiment 1, and the working principle is also consistent with embodiment 1.
Example 3
On the basis of embodiment 1, as shown in fig. 2 and 4, the isolation switch 6 is provided with an anti-misoperation rod 601, and in a state where the grounding switch 8 is in contact with the grounding fixed contact 9, one end of the anti-misoperation rod 601 is located on one side of the grounding switch 8 close to the fixed contact 5. The earthing knife-switch can be pulled open by forcibly closing the isolating knife-switch under the closing state, thereby avoiding the isolating knife-switch and the earthing knife-switch from being in the closing position at the same time and achieving the purpose of preventing misoperation.
The isolation switch 6 is provided with a mounting frame 602, and the anti-misoperation rod 601 is mounted on the mounting frame 602.
In addition, the isolation switch 6 comprises two contact plates 603 and a pull ring 604 arranged between the contact plates 603, the second contact blade 4 is provided with a mounting plate 401, one ends of the two contact plates 603 are arranged at two sides of the mounting plate 401 and are rotatably connected with the second contact blade 4 through a bolt 605, a nut 606 and a spring 607, and the other end of the contact plate 603 is connected with the pull ring 604 through the bolt 605, the nut 606 and the spring 607. Under the action of the spring, the contact blade forms elastic pressure on the static contact and the second contact blade, and good contact between the contact blade and the static contact and the second contact blade is ensured. The pull ring is fixed on the movable contact through a bolt to provide an acting point for the pulling and closing operation of the disconnecting link.
The remaining technical features are consistent with embodiment 1, and the working principle is also consistent with embodiment 1.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides an outdoor earthing knife-switch, including installation base (1), install in two insulators (2) are equipped with on installation base (1), be equipped with first contact piece (3) and second contact piece (4) on insulator (2) respectively, static contact (5) are equipped with on first contact piece (3), it is connected with isolation switch (6) that can contact closure or separation with static contact (5) to rotate on second contact piece (4), its characterized in that, be provided with earthing knife-switch base (7) on second contact piece (4), can dismantle on earthing knife-switch base (7) and be connected with earthing knife-switch (8), be provided with on installation base (1) with earthing static contact (9) of earthing knife-switch (8) contact.
2. An outdoor earthable switch according to claim 1, characterized in that said earthing switch (8) is hung on said earthing switch base (7).
3. An outdoor earthable switch according to claim 2, characterized in that said earthing switch base (7) is provided with a hook (701), said earthing switch (8) being provided with a hanging rod (801) cooperating with said hook (701).
4. An outdoor earthable switch according to claim 3, characterized in that said hanging bar (801) is semicircular in cross-section.
5. An outdoor earthable switch according to claim 2, characterized in that both ends of said earthing switch (8) are provided with round holes (802).
6. An outdoor earthable switch according to claim 1, characterized in that said mounting base (1) is provided with an earth connection site (101).
7. The outdoor earthing knife-switch according to claim 1, characterized in that, the isolating knife-switch (6) is provided with an anti-misoperation rod (601), and under the state that the earthing knife-switch (8) is contacted with the earthing static contact (9), one end of the anti-misoperation rod (601) is located at one side of the earthing knife-switch (6) close to the static contact (5).
8. An outdoor earthable switch according to claim 7, characterized in that said isolating switch (6) is provided with a mounting bracket (602), said anti-mishandling lever (601) being mounted on said mounting bracket (602).
9. An outdoor earthable switch according to any of claims 1-8, characterized in that said isolating switch (6) comprises two contact blades (603) and a pull ring (604) arranged between said contact blades (603), said second contact blade (4) is provided with a mounting plate (401), one end of each of said two contact blades (603) is arranged on either side of said mounting plate (401) and is rotatably connected to said mounting plate (401) by a clamping mechanism, and the other end of each of said two contact blades (603) is connected to said pull ring (604) by a clamping mechanism.
10. An outdoor earthable switch according to claim 9, characterized in that said clamping means comprise a fastening for connecting said contact blade (603) and a spring for compressing said contact blade (603).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708423.1A CN110600311A (en) | 2019-08-01 | 2019-08-01 | Outdoor earthing knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910708423.1A CN110600311A (en) | 2019-08-01 | 2019-08-01 | Outdoor earthing knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110600311A true CN110600311A (en) | 2019-12-20 |
Family
ID=68853371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910708423.1A Pending CN110600311A (en) | 2019-08-01 | 2019-08-01 | Outdoor earthing knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110600311A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972088A (en) * | 2020-07-24 | 2022-01-25 | 贵州电网有限责任公司 | Fixed locking state grounding knife switch |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1184837B (en) * | 1962-02-02 | 1965-01-07 | Sachsenwerk Licht & Kraft Ag | Disconnector or earthing switch |
| CN202339874U (en) * | 2011-12-07 | 2012-07-18 | 川铁电气（天津）集团有限公司 | Indoor high-voltage isolating automatic grounding switch |
| CN103268836A (en) * | 2013-05-13 | 2013-08-28 | 周文伟 | Anti-misoperation demarcating load switch with disconnecting link |
| CN203812792U (en) * | 2014-05-19 | 2014-09-03 | 黄继勇 | 10kV knife switch detachable-type isolation switch |
| CN204884985U (en) * | 2015-08-20 | 2015-12-16 | 浙江西电高压电气有限公司 | Isolator's earthing knife -switch |
| CN206921736U (en) * | 2017-07-12 | 2018-01-23 | 张振仙 | A kind of detachable type grounding switch |
| CN206931530U (en) * | 2017-05-05 | 2018-01-26 | 广东安浩电气设备有限公司 | A kind of high-pressure vacuum switch of knife with ground |
| CN210110615U (en) * | 2019-08-01 | 2020-02-21 | 广东电网有限责任公司 | Outdoor earthing knife switch |
-
2019
- 2019-08-01 CN CN201910708423.1A patent/CN110600311A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1184837B (en) * | 1962-02-02 | 1965-01-07 | Sachsenwerk Licht & Kraft Ag | Disconnector or earthing switch |
| CN202339874U (en) * | 2011-12-07 | 2012-07-18 | 川铁电气（天津）集团有限公司 | Indoor high-voltage isolating automatic grounding switch |
| CN103268836A (en) * | 2013-05-13 | 2013-08-28 | 周文伟 | Anti-misoperation demarcating load switch with disconnecting link |
| CN203812792U (en) * | 2014-05-19 | 2014-09-03 | 黄继勇 | 10kV knife switch detachable-type isolation switch |
| CN204884985U (en) * | 2015-08-20 | 2015-12-16 | 浙江西电高压电气有限公司 | Isolator's earthing knife -switch |
| CN206931530U (en) * | 2017-05-05 | 2018-01-26 | 广东安浩电气设备有限公司 | A kind of high-pressure vacuum switch of knife with ground |
| CN206921736U (en) * | 2017-07-12 | 2018-01-23 | 张振仙 | A kind of detachable type grounding switch |
| CN210110615U (en) * | 2019-08-01 | 2020-02-21 | 广东电网有限责任公司 | Outdoor earthing knife switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113972088A (en) * | 2020-07-24 | 2022-01-25 | 贵州电网有限责任公司 | Fixed locking state grounding knife switch |
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