CN209766277U - Automatic switching-on prevention device of high-voltage isolating switch - Google Patents
Automatic switching-on prevention device of high-voltage isolating switch Download PDFInfo
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- CN209766277U CN209766277U CN201920437287.2U CN201920437287U CN209766277U CN 209766277 U CN209766277 U CN 209766277U CN 201920437287 U CN201920437287 U CN 201920437287U CN 209766277 U CN209766277 U CN 209766277U
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- prevention device
- snap ring
- insulating
- insulating support
- rod
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- 230000002265 prevention Effects 0.000 title claims description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 5
- 230000003373 anti-fouling effect Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004870 electrical engineering Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
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- Insulators (AREA)
Abstract
The utility model provides a pair of automatic closing device is prevented to high-pressure isolator, include: a snap ring 1 and an insulating support 2; the clamping ring 1 is sleeved with a protective sleeve 1-1, and the insulating support piece 2 is connected with the clamping ring 1 and is perpendicular to the plane of the clamping ring 1. The utility model provides a pair of automatic closing device is prevented to high-voltage isolator, the during operation props snap ring 1 through insulating support piece 2, embolias the connecting lever under with cramping fold condition with snap ring 1 from isolator connecting lever upper end, avoids the connecting lever to extend and causes the combined floodgate. The device is simple to use, can use in various occasions of transformer substation, and it is convenient to maintain, and one person can accomplish the operation.
Description
Technical Field
The utility model relates to an electrical engineering technical field especially relates to a high-pressure isolator prevents automatic closing device.
Background
At present, in an electric power system, due to the arrangement characteristics of a horizontal telescopic isolating switch, after a transmission connecting rod of the isolating switch breaks down, the isolating switch of some manufacturers can automatically switch on due to the fact that the isolating switch of some manufacturers does not have a brake-separating prevention self-locking function, for equipment intervals in an overhauling state, due to the fact that a grounding isolating switch is switched on, the isolating switch of an isolating power supply can automatically switch on to bring great hidden danger of direct grounding of a power grid system, and great threat to the safety of the power grid is generated, and the process of one-time automatic switch-on is explained as shown in the following figure 1.
For an isolating switch (such as a joint bearing fracture and the like) with the automatic closing risk of a knife switch, when power is off, the switching-off state can be changed under the condition that one side of the knife switch is electrified, and great potential safety hazards are brought to the safety of maintainers and equipment. In the past, people are used for climbing through an insulating ladder for binding, and the risk is also caused. The safety risk of site operation is high, and the control cost is high; because the length of the overhaul time has great influence on the reliability and economic indexes of the power system, the safety arrangement time is hopefully shortened as much as possible.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a high-pressure isolator prevents automatic combined floodgate device.
The utility model provides a pair of automatic closing device is prevented to high-pressure isolator, include: a snap ring and an insulating support; the snap ring is sleeved with a protective sleeve, and the insulating support piece is connected with the snap ring and is perpendicular to the plane of the snap ring.
Preferably, the snap ring is an open ring structure.
Preferably, the snap ring comprises first arc pole, second arc pole and telescopic link, and first arc pole and second arc pole are installed respectively at the both ends of telescopic link and the opening sets up in opposite directions.
Preferably, the telescopic rod is a spring telescopic rod.
Preferably, install female joint on the snap ring, the male joint who matches with female joint is installed on insulating bracing piece top, dismantles through female joint and male joint between insulating support piece and the snap ring and is connected.
Preferably, the male connector is made of a magnetic material.
Preferably, the female connector is mounted in the middle of the snap ring.
Preferably, the bottom end of the insulating support member is provided with an insulating handle, and the top of the insulating handle is also provided with an insulating umbrella skirt.
Preferably, the insulating umbrella skirt is an antifouling silica gel umbrella skirt.
Preferably, the insulating support rod is formed by sequentially connecting a plurality of section rods positioned between the male connector and the insulating umbrella skirt.
The utility model provides a pair of automatic closing device is prevented to high-voltage isolator, the during operation props up the snap ring through insulating support piece, embolias the snap ring from isolator crank upper end in order to cramp the crank arm under the fold condition, avoids the crank arm to extend and causes the combined floodgate. The device is simple to use, can use in various occasions of transformer substation, and it is convenient to maintain, and one person can accomplish the operation.
In addition, the device can be used for isolating electrified parts of various 35kV and below power distribution devices, and is small in operation space and large in application range. Because the device operation scope is little, danger such as ascending a height, electric shock, mechanical injury have been avoided in the removal process.
Drawings
FIG. 1 is a schematic diagram showing a gradual change of a crank arm state in an automatic closing process of a high-voltage isolating switch;
Fig. 2 is a schematic view of the automatic closing prevention device for the high-voltage isolating switch according to the present invention;
Fig. 3 is the utility model provides a discrete structure chart of automatic combined floodgate device is prevented to high-pressure isolator.
The figure is as follows: the device comprises a clamping ring 1, a protective sleeve 1-1, a female joint 1-2, an insulating support 2, an insulating handle 2-1, an insulating umbrella skirt 2-2, a joint rod 2-3 and a male joint 2-4.
Detailed Description
Referring to fig. 1, the utility model provides a high-voltage isolator prevents automatic closing device, include: a snap ring 1 and an insulating support 2. The clamping ring 1 is sleeved with a protective sleeve 1-1, and the insulating support piece 2 is connected with the clamping ring 1 and is perpendicular to the plane of the clamping ring 1.
Therefore, when the isolating switch is in work, the clamping ring 1 is supported by the insulating support piece 2, and the clamping ring 1 is sleeved from the upper end of the isolating switch crank arm, as shown in figure 2. Because the opening of isolator connecting lever is down bigger more when breaking brake state, treat that snap ring 1 is final when fixing on the isolator connecting lever, can guarantee the folding stable form of connecting lever, prevent the plug-in strip.
In this embodiment, snap ring 1 is opening annular structure to the convenient adjustment snap ring 1 size, thereby satisfy the tight demand of preventing closing a floodgate of cramping of isolator department turning arm of difference.
In this embodiment, the snap ring 1 is composed of a first arc rod, a second arc rod and a telescopic rod, wherein the first arc rod and the second arc rod are respectively installed at two ends of the telescopic rod, and openings of the first arc rod and the second arc rod are arranged in opposite directions. Therefore, the size of the snap ring 1 can be adjusted by adjusting the length of the telescopic rod. Specifically, in the embodiment, the telescopic rod is a spring telescopic rod, so that the size of the clamping ring 1 can be automatically adjusted when the crank arm is tightly sleeved.
In the embodiment, a female connector 1-2 is installed on a snap ring 1, a male connector 2-4 matched with the female connector 1-2 is installed at the top end of an insulating support rod, and the insulating support member 2 is detachably connected with the snap ring 1 through the female connector 1-2 and the male connector 2-4. Therefore, after the connecting lever is sleeved on the clamping ring 1, an operation and maintenance worker can conveniently remove the insulating support rod and then assemble a new clamping ring 1 to complete the assembly operation of the closing prevention device of the other phase of knife switch.
In this embodiment, the male connectors 2-4 are made of magnetic materials, so that when the snap ring 1 is disassembled, the insulating support rod can improve the efficiency of connecting the insulating support rod and the snap ring 1 through the mutual attraction of the magnetic male connectors 2-4 and the female connectors 1-2, thereby improving the working efficiency.
In this embodiment, the female connector 1-2 is installed in the middle of the snap ring 1 to ensure the stability of the snap ring 1 when the snap ring 1 is supported by the insulating support rod.
In the embodiment, the bottom end of the insulating support member 2 is provided with an insulating handle 2-1, and the top of the insulating handle 2-1 is also provided with an insulating umbrella skirt 2-2. Therefore, when the device is used, a worker holds the insulating handle 2-1 by hand, the insulating umbrella skirt 2-2 plays an antifouling role, and a passage can be prevented from being formed between an electrified part of equipment and a human body through rainwater when the worker suddenly rains, so that the safety of the worker is protected. Specifically, in the present embodiment, the insulating shed 2-2 is an antifouling silica gel shed.
In the embodiment, the insulating support rod is formed by sequentially connecting a plurality of section rods 2-3 positioned between the male connector 2-4 and the insulating umbrella skirt 2-2. Therefore, the section rods 2-3 are flexibly selected and matched according to the height of the power distribution device, and the total height of the insulating support rod is adjusted. Meanwhile, the device can be disassembled into a plurality of assembling parts, and is convenient to carry and assemble.
In the embodiment, the insulating support rod and the handle are both made of high-strength insulating materials, and the components can be conveniently moved after being assembled in place. Because the device operation scope is little, danger such as ascending a height, electric shock, mechanical injury have been avoided in the removal process. In addition, the device can be used for isolating electrified parts of various 35kV and below power distribution devices, and is small in operation space and large in application range.
The above description is only the specific implementation of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can be in the technical scope of the present invention, and according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a high voltage isolator prevents automatic closing device which characterized in that includes: a snap ring (1) and an insulating support (2); the clamping ring (1) is sleeved with a protective sleeve (1-1), and the insulating support piece (2) is connected with the clamping ring (1) and is perpendicular to the plane of the clamping ring (1).
2. the automatic closing prevention device for the high-voltage disconnecting switch is characterized in that the snap ring (1) is of an open ring structure.
3. The automatic switching-on prevention device for the high-voltage isolating switch according to claim 2, wherein the snap ring (1) is composed of a first arc rod, a second arc rod and a telescopic rod, the first arc rod and the second arc rod are respectively installed at two ends of the telescopic rod, and openings of the first arc rod and the second arc rod are arranged in opposite directions.
4. The automatic closing prevention device for the high-voltage disconnecting switch according to claim 3, wherein the telescopic rod is a spring telescopic rod.
5. The automatic switching-on prevention device for the high-voltage disconnecting switch according to claim 1, wherein a female joint (1-2) is installed on the snap ring (1), a male joint (2-4) matched with the female joint (1-2) is installed at the top end of the insulating support rod, and the insulating support member (2) is detachably connected with the snap ring (1) through the female joint (1-2) and the male joint (2-4).
6. The automatic closing prevention device for the high-voltage disconnecting switch is characterized in that the male connector (2-4) is made of magnetic materials.
7. The automatic closing prevention device for the high-voltage disconnecting switch according to claim 5, wherein the female connector (1-2) is installed in the middle of the snap ring (1).
8. The automatic switching-on prevention device for the high-voltage disconnecting switch according to claim 1, wherein an insulating handle (2-1) is installed at the bottom end of the insulating support member (2), and an insulating umbrella skirt (2-2) is further installed at the top of the insulating handle (2-1).
9. The automatic closing prevention device for the high-voltage disconnecting switch according to claim 8, wherein the insulating shed (2-2) is an antifouling silica gel shed.
10. The automatic switching-on prevention device of the high-voltage disconnecting switch according to claim 1, wherein the insulating support rod is composed of a plurality of joint rods (2-3) which are sequentially connected and are positioned between the male connector (2-4) and the insulating shed (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437287.2U CN209766277U (en) | 2019-04-02 | 2019-04-02 | Automatic switching-on prevention device of high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920437287.2U CN209766277U (en) | 2019-04-02 | 2019-04-02 | Automatic switching-on prevention device of high-voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209766277U true CN209766277U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920437287.2U Active CN209766277U (en) | 2019-04-02 | 2019-04-02 | Automatic switching-on prevention device of high-voltage isolating switch |
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| CN (1) | CN209766277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904019A (en) * | 2019-04-02 | 2019-06-18 | 国网安徽省电力有限公司检修分公司 | A kind of high voltage isolator anti-automatic closing device |
-
2019
- 2019-04-02 CN CN201920437287.2U patent/CN209766277U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109904019A (en) * | 2019-04-02 | 2019-06-18 | 国网安徽省电力有限公司检修分公司 | A kind of high voltage isolator anti-automatic closing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee after: Super high voltage branch of State Grid Anhui Electric Power Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: No. 397 Tongcheng South Road, Hefei City, Anhui Province 230000 Patentee before: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH Patentee before: STATE GRID CORPORATION OF CHINA |
|
| CP03 | Change of name, title or address |