CN202318222U - Special tool for secondary wiring terminals of transformers - Google Patents
Special tool for secondary wiring terminals of transformers Download PDFInfo
- Publication number
- CN202318222U CN202318222U CN2011204222489U CN201120422248U CN202318222U CN 202318222 U CN202318222 U CN 202318222U CN 2011204222489 U CN2011204222489 U CN 2011204222489U CN 201120422248 U CN201120422248 U CN 201120422248U CN 202318222 U CN202318222 U CN 202318222U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- fastener head
- connection terminal
- holding rod
- nut fastener
- 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.)
- Expired - Fee Related
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- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model discloses a special tool for secondary wiring terminals of transformers, which comprises a handle and a nut fastening head, wherein the handle comprises a holding rod and a connecting rod, one end of the connecting rod is connected with the holding rod, the other end of the connecting rod and the nut fastening head are fixedly connected so as to form an L-shaped structure, and the nut fastening head is provided with a U-shaped opening. The special tool for secondary wiring terminals of transformers disclosed by the utility model has the advantages of simple structure, easiness in use, simple maintenance process, high maintenance efficiency, maintenance-time conservation and tool-cost reduction, and the like.
Description
Technical field
The utility model relates to hand-operated tools, specially refers to a kind of instrument that is exclusively used in maintenance transformer secondary connection terminal outer nut.
Background technology
Transformer is one of visual plant in the high-tension transformation equipment, in its maintenance flow process, the secondary connection terminal maintenance operation of a transformer is arranged, and is special because of its connection terminal structure, arranges closely, and locus of living in is narrow and small, causes the maintenance complex procedures.
Arranged 28 bolts in the limited space in the transformer secondary connection box, wherein 16 bolts in outer ring play the pressuring action of oil seal circle; Middle 12 bolts are the secondary connection terminal, and its structure is more special.The outside nut one of secondary connection terminal has three (transformers of each electric pressure; The size of its terminal nut is unified to be 14mm); Be divided into three layers; Bottom nut wherein is used for sealing and fixed terminal screw mandrel, and the middle level nut is used to lock the bottom nut and carries plain washer and secondary line, and the upper strata nut compresses secondary line through a plain washer.During maintenance, need its bottom, middle level and upper strata nut is fastening one by one, just need remove nut, plain cushion, the secondary line on it this moment one by one, fastening one by one again.Use common tool at present; Like open-end wrench, box spanner, monkey wrench and double offset ring spanner etc. the secondary connection terminal is overhauled, but these common tools are because the restriction of shape or use angle can not be accomplished maintenance by a kind of instrument of disposable use; And need be used alternatingly multiple service kit; Therefore using instrument instead has taken a large amount of repair times, causes the maintenance complex procedures, has influenced overhaul efficiency and repair quality.
For example, certain QC group uses common tool to 35kV, 100kV, 220kV, four electric pressures of 500kV, and all types of transformers of 5 transformer stations overhaul; The major overhaul time average of 5 procedures cost is 98 minutes; Wherein maintenance in case of necessity between be 30 minutes, and the time that the instrument of using instead takies just reaches 68 minutes, and respectively overhauls the tool kind that uses in the operation and all need 4 kinds; The instrument of using instead bothers very much, and the instrument cost increases.
The utility model content
The utility model technical problem to be solved is: to the deficiency of prior art, provide a kind of simple in structure, easy to use, practice thrift the transformer secondary connection terminal specific purpose tool that repair time and instrument cost reduce.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of transformer secondary connection terminal specific purpose tool; Comprise handle and nut fastener head; Said handle comprises holding rod and connecting rod; Said connecting rod one end is connected with said holding rod, and the connecting rod other end and said nut fastener head be affixed to become L shaped structure, offers the U-shaped opening on the nut fastener head.
Further improvement as technique scheme:
Said connecting rod and said holding rod connect into T shape structure.
One end of said connecting rod is provided with sleeve pipe, and said holding rod is arranged in the said sleeve pipe.
The bearing of trend of U-shaped opening is vertical with the bearing of trend of said holding rod on the said nut fastener head.
The surface of said handle and nut fastener head all is coated with insulating protective layer.
Compared with prior art, the advantage of the utility model is:
1. the transformer secondary connection terminal specific purpose tool of the utility model becomes L shaped structure with the nut fastener head and connecting rod one end of handle are affixed, and on the nut fastener head, offers the U-shaped opening that can cooperate with each layer of transformer secondary connection terminal outer nut, and the angle of inclination was little when it used; Can be in less space flexible operating, only need use the utility model can accomplish the fastening of all nuts during maintenance, do not need to use instead again other common tool; Make the maintenance operation simple, labour intensity reduces, and the repair time shortens; The corresponding also shortening of equipment interruption maintenance time, the equipment operational percentage improves, and compares and uses the common tool maintenance; The equipment that is overhauled on average can be done sth. in advance to put into operation in 72 minutes, and economic benefit improves greatly, has simple in structure; Easy to use, the instrument cost is low, advantages of wide application range;
2. the transformer secondary connection terminal specific purpose tool of the utility model, handle is connected to form T shape structure by holding rod and connecting rod, can be two-way firmly and the radius of gyration little, be adapted at small space and use; The utility model further is provided with sleeve pipe at an end of connecting rod, during use holding rod is arranged in the sleeve pipe, can holding rod be taken out after using, and is convenient to collection; The bearing of trend of U-shaped opening is vertical with the bearing of trend of holding rod on the nut fastener head, and is smoothly easy to use;
3. the transformer secondary connection terminal specific purpose tool of the utility model, the surface of handle and nut fastener head all sprays insulating protective layer, makes it have certain insulating protection ability, and is safe and reliable, and specious.
Description of drawings
Fig. 1 is the perspective view of the utility model.
Fig. 2 is the main TV structure sketch map of the utility model.
Marginal data
1, handle; 11, holding rod; 12, connecting rod; 13, sleeve pipe; 2, nut fastener head; 21, U-shaped opening.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing the utility model is further described.
As depicted in figs. 1 and 2; The transformer secondary connection terminal specific purpose tool of the utility model; Comprise handle 1 and nut fastener head 2, handle 1 comprises holding rod 11 and connecting rod 12, and connecting rod 12 1 ends are connected with holding rod 11; Connecting rod 12 other ends and nut fastener head 2 be affixed to become L shaped structure, offers the U-shaped opening 21 that can cooperate with each layer of transformer secondary connection terminal outer nut on the nut fastener head 2.Become L shaped structure with the nut fastener head 2 and connecting rod 12 1 ends of handle 1 are affixed, and on nut fastener head 2, offer U-shaped opening 21, the angle of inclination was little when it used; Can be in less space flexible operating, only need use the utility model can accomplish the fastening of all nuts during maintenance, do not need to use instead again other common tool; Make the maintenance operation simple, labour intensity reduces, and the repair time shortens; The also corresponding shortening of equipment interruption maintenance time, the equipment operational percentage improves, and compares and uses the common tool maintenance; The equipment that is overhauled on average can be done sth. in advance to put into operation in 72 minutes, can create bigger power grid security benefit.Simple in structure, easy to use, the instrument cost is low, and applied range is applicable in all kinds of transformer maintenance such as 35kV, 110kV, 220kV, 500kV current transformer, capacitance type potential transformer, coupling capacitor and uses.
In the present embodiment, connecting rod 12 1 ends and holding rod 11 are connected to form T-handle 1, can be two-way firmly and the radius of gyration little, be adapted at small space and use.The bearing of trend of U-shaped opening 21 is vertical with the bearing of trend of holding rod 11 on the nut fastener head 2, and is smoothly easy to use.
In the present embodiment, holding rod 11 is preferred to adopt circular pipe fitting, but weight reduction, economical with materials; Connecting rod 12 can all adopt band steel to make with nut fastener head 2, and the thickness of nut fastener head 2 is greater than the thickness of connecting rod 12, connecting rod 12 1 ends and the welding of nut fastener head 2 sidepieces, bonding area is big, stressed reliably; The other end of connecting rod 12 welds a sleeve pipe 13, is used to wear holding rod 11, during use holding rod 11 is arranged in the sleeve pipe 13, can holding rod 11 be taken out easy to use and collection after using.In the present embodiment, the length of holding rod 11 is preferably 120mm, and the length of connecting rod 12 is preferably 100mm, and the width of nut fastener head 2 is preferably 30mm, and thickness is preferably 5mm, and the width of U-shaped opening 21 is preferably 14mm on the nut fastener head 2.The volume of whole specific purpose tool is little, and is in light weight, very practical.
The transformer secondary connection terminal specific purpose tool of the utility model can adopt tool steel processing, and its intensity is high, be difficult for getting rusty; The surface of handle 1 and nut fastener head 2 all sprays one deck insulating protective layer, as carries out surface plastic spraying and handle, and has certain insulating protection ability, and is safe and reliable, and specious.
The above only is the preferred implementation of the utility model, and the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, all should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.
Claims (5)
1. transformer secondary connection terminal specific purpose tool; It is characterized in that: comprise handle (1) and nut fastener head (2); Said handle (1) comprises holding rod (11) and connecting rod (12); Said connecting rod (12) one ends are connected with said holding rod (11), and connecting rod (12) other end and said nut fastener head (2) be affixed to become L shaped structure, offers U-shaped opening (21) on the nut fastener head (2).
2. transformer secondary connection terminal specific purpose tool according to claim 1 is characterized in that: said connecting rod (12) connects into T shape structure with said holding rod (11).
3. transformer secondary connection terminal specific purpose tool according to claim 2, it is characterized in that: an end of said connecting rod (12) is provided with sleeve pipe (13), and said holding rod (11) is arranged in the said sleeve pipe (13).
4. according to claim 1 or 2 or 3 described transformer secondary connection terminal specific purpose tools, it is characterized in that: the bearing of trend that said nut fastener head (2) is gone up U-shaped opening (21) is vertical with the bearing of trend of said holding rod (11).
5. according to claim 1 or 2 or 3 described transformer secondary connection terminal specific purpose tools, it is characterized in that: the surface of said handle (1) and nut fastener head (2) all is coated with insulating protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204222489U CN202318222U (en) | 2011-10-31 | 2011-10-31 | Special tool for secondary wiring terminals of transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204222489U CN202318222U (en) | 2011-10-31 | 2011-10-31 | Special tool for secondary wiring terminals of transformers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202318222U true CN202318222U (en) | 2012-07-11 |
Family
ID=46430219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204222489U Expired - Fee Related CN202318222U (en) | 2011-10-31 | 2011-10-31 | Special tool for secondary wiring terminals of transformers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202318222U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922205A (en) * | 2016-06-07 | 2016-09-07 | 深圳供电局有限公司 | Special spanner operating rod for fastening secondary terminal of current-voltage transformer body |
| CN113370151A (en) * | 2021-06-16 | 2021-09-10 | 贵州电网有限责任公司 | Optical fiber distribution frame 2M terminal tightener and using method thereof |
-
2011
- 2011-10-31 CN CN2011204222489U patent/CN202318222U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922205A (en) * | 2016-06-07 | 2016-09-07 | 深圳供电局有限公司 | Special spanner operating rod for fastening secondary terminal of current-voltage transformer body |
| CN113370151A (en) * | 2021-06-16 | 2021-09-10 | 贵州电网有限责任公司 | Optical fiber distribution frame 2M terminal tightener and using method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141031 |
|
| EXPY | Termination of patent right or utility model |