CN102779703B - Gas insulating plug for composite apparatus cabinet fuse cylinder - Google Patents
Gas insulating plug for composite apparatus cabinet fuse cylinder Download PDFInfo
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- CN102779703B CN102779703B CN201210269033.7A CN201210269033A CN102779703B CN 102779703 B CN102779703 B CN 102779703B CN 201210269033 A CN201210269033 A CN 201210269033A CN 102779703 B CN102779703 B CN 102779703B
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- insulating plug
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- insulation plug
- insulating
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Abstract
The invention discloses a gas insulating plug for a composite apparatus cabinet fuse cylinder. The gas insulating plug comprises an insulating plug body, a moveable rod, a rubber sleeve, sealing end covers and sealing rings, wherein the axial cross section of the insulating plug body is T-shaped; the insulating plug body is molded by integrally casting embedding nuts at the two ends through an epoxy resin material; a through mounting hole is formed in the center of the insulating plug body; the moveable rod is formed by fixing two limit plates on the two ends of an insulating rod through screws; the sealing end covers are connected with the embedding nuts at the two ends of the mounting hole of the insulating plug body through screw threads; static sealing with the two end surfaces of the insulating plug body is realized through the sealing rings in the sealing end covers; the moveable rod penetrates through inner holes in the sealing end covers at the two ends of the insulating plug body to realize moveable sealing, so that the mounting hole of the insulating plug body forms an airtight space, and high-performance insulating gas is filled into the airtight space; the position of the moveable rod is limited by the limit plates at the two ends of the insulating plug body; and the rubber sleeve is matched with the insulating plug body. The gas insulating plug is simple in structure, high in safety, small in structural size, reliable in action and low in cost.
Description
Technical field
Fuse canister insulation plug involved in the present invention, is specifically related to a kind of fuse canister gas-insulating type plug.
Background technology
Fuse canister is combined electrical apparatus cabinet main components, for installing the high-tension fuse of electric equipment such as protection transformer, motor etc.High-tension fuse adopts insulation plug to carry out shutoff, there is the High-Voltage Insulation performance of combined electrical apparatus cabinet defined, and the striker action of the striker of the high-tension fuse be installed in fuse canister is passed on the on-load switch mechanism trigger equipment outside fuse canister by insulation plug fast and accurately, and final separating brake on-load switch.Therefore fuse canister plug must have the High-Voltage Insulation performance identical with combined electrical apparatus and quick and precisely can transmit the action of high-tension fuse striker.
On the passage that existing fuse canister plug used transmits in the action of fuse striker, generally adopt air insulation or oil-insulation mode, these two kinds of modes all existing defects and deficiency in the use procedure of reality:
Air insulation mode, because the plug project organization degree of depth can not be excessive, cause air insulation performance low, and be subject to the impact of atmospheric environment as humidity etc., cause plug High-Voltage Insulation performance lower and unstable, strongly limit the insulation property of combined electrical apparatus cabinet, have impact on the application and development of combined electrical apparatus cabinet to more high voltage-rated grade;
Oil-insulation mode, adopts insulating oil seal groove structure, and insulating capacity improves, but its complex structure, keep in repair more difficult.
Summary of the invention
The plug insulation property that the present invention is directed to existing fuse canister used are low, easily affected by environment, the not problem of easy care, and provide a kind of combined electrical apparatus cabinet fuse canister gas-insulating type plug.This gas-insulating type plug, on the passage that the action of fuse striker is transmitted, adopt hermetically-sealed construction also to fill with the SF6 of high insulating property or other gas, the significant increase High-Voltage Insulation performance of fuse canister plug, and have concurrently fast, accurately transmit the function of high-tension fuse striker action.
In order to achieve the above object, the present invention adopts following technical scheme:
A kind of combined electrical apparatus cabinet fuse canister gas-insulating type plug, described insulation plug comprises: insulation plug body, lever, rubber sleeve, the first end cover, the second end cover, the first sealing ring, the second sealing ring, the 3rd sealing ring and the 4th sealing ring; The axial cross section of described insulation plug body is T-shaped, and insulation plug body central is provided with a through installing hole; Described insulation plug body installing hole two ends are respectively arranged with the first and second insert nuts; First, second end cover described is metal material, is connected by screw thread first and second insert nut with insulation plug body installing hole two ends, realizes the static seal with insulation plug body both ends of the surface by first, fourth sealing ring; Described lever is through the endoporus of first and second end cover being installed on insulation plug body two ends, movable sealing is realized by second and third sealing ring in endoporus, make insulation plug body installing hole form an airtight space, in this airtight space, High Performance Insulation gas can be filled with.
In preferred embodiment of the present invention, described insulation plug body is by first, second insert nut by epoxide resin material one-time cast-forming, and first, second insert nut described is metal material.
Preferably, described lever comprises insulating bar and first, second limiting plate, and first, second limiting plate is fixed on insulating bar two ends by screw.
Preferably, described lever stretches out insulation plug two ends end cover, is undertaken spacing by first and second limiting plate, and lever journey of restricting driving in insulation plug body installing hole is free to slide.
Preferably, described insulation plug also comprises the rubber sleeve be made up of elastic rubber material, and described rubber sleeve and insulation plug body fits, realize the interfacial insulator of insulation plug body and fuse canister.
By technique scheme, the invention has the beneficial effects as follows:
The present invention's plug body installing hole that insulate is provided with an airtight space, can be filled with High Performance Insulation gas, can realize the significant increase of the insulation property of fuse plug in this airtight space;
The present invention insulate the lever of plug by the movable sealing of two ends sealing ring, and is undertaken spacing by the limiting plate at two ends, lever journey of restricting driving in insulation plug body installing hole is free to slide, realizes fast, accurately transmit the function of high-tension fuse striker action.
High-tension fuse length can be solved long according to the solution of the present invention, particularly to the high-tension fuse installation insulating cylinder of more than 24kV, because high pressure Distance geometry space is over the ground too short, during design switch cubicle, the arrangement that fuse is extracted out from switch cubicle front should be convenient to, be unlikely to again the difficult problem causing dark switch cubicle design.This project organization is simple, and fail safe is high, and physical dimension is little, reliable in action, and cost is low.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the assembling schematic diagram of the embodiment of the present invention;
Fig. 2 is the structural representation of plug body of insulating in the present invention;
Fig. 3 is the assembling schematic diagram of lever in the present invention.
Numeral and the corresponding component title represented by letter in figure:
1, insulate plug body 2, lever 3, rubber sleeve 4, fuse canister 5, high-tension fuse 6, first sealing ring 7, second sealing ring 8, first end cover 9, insulating gas 10, the 3rd sealing ring 11, the 4th sealing ring 12, second end cover 13, first insert nut 14, epoxide resin material 15, second insert nut 16, installing hole 17, first limiting plate 18, insulating bar 19, first limiting plate 20, screw.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
See shown in Fig. 1 to Fig. 3, the invention discloses a kind of combined electrical apparatus cabinet fuse canister gas-insulating type plug, described insulation plug comprises: insulation plug body 1, lever 2, rubber sleeve 3, first end cover 8, second end cover 12, first sealing ring 6, second sealing ring 7, the 3rd sealing ring 10 and the 4th sealing ring 11.
See Fig. 2, the axial cross section of insulation plug body 1 is T-shaped, by the first insert nut 13 of metal material and the second insert nut 15 by epoxide resin material 14 one-time cast-forming.
The center of insulation plug body 1 is provided with a through installing hole 16, and the endoporus of insulation plug body 1 two ends insert nut is greater than installing hole 16, makes insulation plug body 1 two ends produce two steps, is convenient to the end face seal of two ends end cover.
First end cover 8, second end cover 12 is metal material, be connected by the first insert nut 13 of screw thread and the installing hole 16 two ends metal material of insulation plug body 1 and the second insert nut 15, realize the static seal with insulation plug body 1 both ends of the surface by the first sealing ring 6, the 4th sealing ring 11, this structure ensure that the reliability of intensity and the sealing be connected to each other.
See Fig. 3, lever 2 comprises insulating bar 18 and the first limiting plate 17, second limiting plate 19, and two pieces limiting plate is fixed on the two ends of insulating bar 18 by screw 20.
Lever 2 is through being installed on insulation first end cover 8 at plug body 1 two ends and the endoporus of the second end cover 12, movable sealing is realized by the second sealing ring 7 in endoporus, the 3rd sealing ring 10, make the installing hole 16 of insulation plug body 1 form an airtight space, in this airtight space, High Performance Insulation gas 9 can be filled with.
End cover is stretched out at lever 2 two ends, first limiting plate 17 and the second limiting plate 19 are installed on the outside of two ends end cover, its outside diameter is greater than end cover diameter of bore, carries out spacing to lever 2, and lever 2 restricted driving journey can be free to slide in the installing hole 16 of insulation plug body 1.
The plug that insulate also comprises the rubber sleeve 3 be made up of elastic rubber material, and this rubber sleeve 3 coordinates with insulation plug body 1, is loaded between insulation plug body 1 and fuse canister 4, realizes the interfacial insulator of insulation plug body 1 and fuse canister 4.
Based on the present invention that such scheme is formed, realized the interfacial insulator of fuse canister 4 and insulation plug body 1 by rubber sleeve 3; Movable sealing is implemented by the second sealing ring 7 and the 3rd sealing ring 10 pairs of levers 2, ensure that the sealing of insulating gas 9 and the mobility of lever 2, lever 2 can be slided in the installing hole 16 of insulation plug body 1, there is the function transmitting high-tension fuse 5 striker energy; By being installed on the spacing of the two ends limiting plate 17,19 of insulating bar 18, insulating bar 18 is made to remain sealing to insulating gas 9; The insert nut 13,15 of metal material is cast in insulation plug body 1 by epoxide resin material 14, and end cover 8,12 is connected with the insert nut 13,15 in insulation plug body 1 by screw thread, ensure that the intensity and reliability that are connected to each other; Insulation plug body 1 inside can be filled with high insulating property SF6 or other gas, makes gas-insulating type plug of the present invention have gas-insulated performance.
During normal operation, high-tension fuse 5 is installed in combined electrical apparatus cabinet fuse canister 4, and high-tension fuse 5 is by high-tension current, and gas-insulating type plug of the present invention is plugged in the end of fuse canister 4, carries out insulation protection to high-tension fuse 5; When high-tension fuse 5 fuses, the striker of its inside ejects and promotes rapidly lever 2 to the motion of Fig. 1 left, realizes fast, accurately transmits the function that high-tension fuse 5 clashes into action.
The insulation plug that gas-insulated principle involved in the present invention is made, its built-in electrical insulation gas comprises SF6 gas but is not limited to this gas.In like manner, lever 2 structural change, as arranged metal electrode in lever 2 both sides, and the middle insulating material that adopts, also can obtain higher insulation property.Therefore protection of the present invention should include but not limited to technical characteristic of the present invention.
More than show and describe general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (5)
1. a combined electrical apparatus cabinet fuse canister gas-insulating type plug, it is characterized in that, described plug comprises insulation plug body, lever, rubber sleeve, the first end cover, the second end cover, the first sealing ring, the second sealing ring, the 3rd sealing ring and the 4th sealing ring; The axial cross section of described insulation plug body is T-shaped, and insulation plug body central is provided with a through installing hole; Described insulation plug body installing hole two ends are respectively arranged with the first and second insert nuts; First, second end cover described is metal material, is connected by screw thread first and second insert nut with insulation plug body installing hole two ends, realizes the static seal with insulation plug body both ends of the surface by first, fourth sealing ring; Described lever is through the endoporus of first and second end cover being installed on insulation plug body two ends, movable sealing is realized by second and third sealing ring in endoporus, make insulation plug body installing hole form an airtight space, in this airtight space, High Performance Insulation gas can be filled with.
2. a kind of combined electrical apparatus cabinet fuse canister gas-insulating type plug according to claim 1, it is characterized in that, described insulation plug body is by first, second insert nut by epoxide resin material one-time cast-forming, and first, second insert nut described is metal material.
3. a kind of combined electrical apparatus cabinet fuse canister gas-insulating type plug according to claim 1, it is characterized in that, described lever comprises insulating bar and first, second limiting plate, and first, second limiting plate is fixed on insulating bar two ends by screw.
4. a kind of combined electrical apparatus cabinet fuse canister gas-insulating type plug according to claim 1, it is characterized in that, described lever stretches out the end cover at insulation plug two ends, is undertaken spacing by first and second limiting plate, and lever journey of restricting driving in insulation plug body installing hole is free to slide.
5. a kind of combined electrical apparatus cabinet fuse canister gas-insulating type plug according to claim 1, it is characterized in that, described insulation plug also comprises the rubber sleeve be made up of elastic rubber material, described rubber sleeve and insulation plug body fits, realize the interfacial insulator of insulation plug body and fuse canister.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269033.7A CN102779703B (en) | 2012-07-30 | 2012-07-30 | Gas insulating plug for composite apparatus cabinet fuse cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210269033.7A CN102779703B (en) | 2012-07-30 | 2012-07-30 | Gas insulating plug for composite apparatus cabinet fuse cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102779703A CN102779703A (en) | 2012-11-14 |
| CN102779703B true CN102779703B (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210269033.7A Active CN102779703B (en) | 2012-07-30 | 2012-07-30 | Gas insulating plug for composite apparatus cabinet fuse cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102779703B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113168A (en) * | 1991-06-26 | 1992-05-12 | San-O Industrial Corporation | Single position flat mount fuse holder |
| CN101667497A (en) * | 2009-09-24 | 2010-03-10 | 上海天灵开关厂有限公司 | Releasing interlock device of fuse plug of combined electrical cabinet |
| CN201608099U (en) * | 2009-11-23 | 2010-10-13 | 山东泰开中压开关有限公司 | Seal structure used for outdoor SF6 inflatable vacuum circuit breaker switch |
-
2012
- 2012-07-30 CN CN201210269033.7A patent/CN102779703B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113168A (en) * | 1991-06-26 | 1992-05-12 | San-O Industrial Corporation | Single position flat mount fuse holder |
| CN101667497A (en) * | 2009-09-24 | 2010-03-10 | 上海天灵开关厂有限公司 | Releasing interlock device of fuse plug of combined electrical cabinet |
| CN201608099U (en) * | 2009-11-23 | 2010-10-13 | 山东泰开中压开关有限公司 | Seal structure used for outdoor SF6 inflatable vacuum circuit breaker switch |
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| Publication number | Publication date |
|---|---|
| CN102779703A (en) | 2012-11-14 |
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