CN203892627U - Current transformer metal expander multifunctional oil injection valve - Google Patents
Current transformer metal expander multifunctional oil injection valve Download PDFInfo
- Publication number
- CN203892627U CN203892627U CN201420215490.2U CN201420215490U CN203892627U CN 203892627 U CN203892627 U CN 203892627U CN 201420215490 U CN201420215490 U CN 201420215490U CN 203892627 U CN203892627 U CN 203892627U
- Authority
- CN
- China
- Prior art keywords
- fastening screw
- valve
- current transformer
- metal expander
- vacuum
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 title claims abstract description 30
- 238000002347 injection Methods 0.000 title abstract 6
- 239000007924 injection Substances 0.000 title abstract 6
- 239000000945 filler Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 14
- 238000007789 sealing Methods 0.000 abstract description 9
- 239000000446 fuel Substances 0.000 description 12
- 238000005086 pumping Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Abstract
The utility model relates to a current transformer metal expander oil valve, in particular to a current transformer metal expander multifunctional oil injection valve which comprises a connection base. The connection base is arranged to be a hollow pipe, a top cap is arranged at the top, the middle of the connection base is communicated with a connector connected with a distributor, a fastening screw is arranged in the connection base, the fastening screw is arranged to be of an integrated structure, a cylinder with a horizontal cutter groove formed in the middle is arranged on the upper portion of the fastening screw, the diameter of the middle of the fastening screw is smaller than that of the cylinder on the upper portion of the screw, and a rectangular protrusion is arranged on the lower portion of the fastening screw at the position corresponding to the horizontal cutter groove. The valve is simple in structure and convenient to use, vacuumizing and oil injection are finished under the condition that a pipeline is not disassembled, the vacuumizing and the oil injection are conducted in a split mode through a distributor, the vacuum state in the device is ensured, the sealing performance in the oil injection process is ensured, the fastening screw is utilized to adjust the position of a sealing screw of the metal expander oil injection valve, the disassembly trouble is saved, and the working efficiency is greatly improved.
Description
Technical field
The utility model relates to a kind of current transformer metal expander fuel tap, is specifically related to the multi-functional oiling valve of a kind of current transformer metal expander.
Background technique
Metal expander is arranged on high-tension current inductor top, and as the protective gear of the hermetically sealed insulating oil of mutual inductor, Main Function is insulating oil and external isolation, adjusting cause due to temperature variation in mutual inductor insulating oil to be expanded with heat and contract with cold and explosion-proof etc.
During mutual inductor filling insulating oil, adopting vacuum oil mode, is all by metal expander top vacuum oiling valve and vacuumize with oiling.During on-the-spot oiling, need first vacuum-pumping pipeline to be connected to vacuum oiling valve, when degree of vacuum reaches 133Pa, by vacuum line dismounting, then oil filling pipeline is connected to vacuum oiling valve oiling, time-consuming, effort, in Renewal process, easily enter air, cause insulating oil to make moist, insulating capacity reduces.
Model utility content
For overcoming the deficiency in above-mentioned technology, the purpose of this utility model is: provide a kind of current transformer metal expander multi-functional oiling valve, simple in structure, easy to use, under the condition of detaching pipelines not, complete and vacuumize and oiling work, increase work efficiency.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is:
The multi-functional oiling valve of described current transformer metal expander, comprise connection base, fastening screw, top cap and distributor, connect base and be made as hollow tubular, its top arranges top cap, connect base middle and lower part and be communicated with connector, connector and distributor join, connect base inside fastening screw is set, fastening screw is made as integrative-structure, comprise top, middle part and bottom, fastening screw middle part diameter be connected base internal diameter and adapt, fastening screw top is the middle cylinder that is provided with horizontal cutter groove, fastening screw top diameter is greater than middle part diameter, the corresponding horizontal cutter groove in fastening screw bottom arranges rectangular preiection.
Wherein preferred version is:
Described distributor comprises vacuum tube and oil filler pipe, on vacuum tube and oil filler pipe, be respectively equipped with vacuum valve and oiling valve, vacuum tube, oil filler pipe and connector are connected by three-way pipe, can separately carry out vacuumizing with oiling work, be conducive to keep the vacuum state of device interior and the sealing in oiling process; Three-way pipe communicates with connector by hermetic collar, good airproof performance in using process, and oil-proof, gas leakage, simultaneously can be according to the situation timely adjustment vacuum tube of equipment and the position of oil filler pipe, flexibly and easily; The spool of described vacuum valve is provided with circular hole and runs through the cylindrical of vacuum tube for middle, circular hole is located at vacuum tube inside, spool end is bolted, between bolt and vacuum tube, coil tension spring is set, oiling valve arranges consistent with vacuum valve, and rotary spool can be realized the switching of vacuum valve, and bolt and coil tension spring can guarantee the stability of vacuum valve, can bear larger pressure, can not come off easily; Described fastening screw middle part is provided with seal ring and spacing line, spacing line is located at seal ring top, the position of spacing line arranges according to the size of metal expander fuel feeding valve sealed screw, the distance that distance between spacing line and fastening screw top and metal expander fuel feeding valve sealed screw need to rise is consistent, in the process of rotation fastening screw, occur that spacing line can stop the rotation, spacing line below arranges seal ring, guarantees the sealing effect in oiling process.
When the utility model is used, first need to remove top cap, then connection base is connected on metal expander vacuum oil valve joint, and keep sealing, now, fastening screw bottom rectangular preiection embeds in metal expander fuel feeding valve sealed screw driver flutes, uses screw-driver by horizontal cutter groove rotation fastening screw, unclamps thus metal expander fuel feeding valve sealed screw and screws top cap.
Distributor vacuum tube and oil filler pipe are communicated with vacuum-pumping pipeline and oil filling pipeline respectively, while vacuumizing, open vacuum valve, close oiling valve, when degree of vacuum reaches 133Pa, close vacuum pump and vacuum valve, open oiling valve and carry out oiling, when oil level reaches normal oil level line, close oiling valve, open top cap, rotation fastening screw, utilizes fastening screw bottom rectangular preiection fastening metal expander fuel feeding valve sealed screw, finally dismounting connects, install top cap, complete oiling, top cap can prevent that in oiling process, fastening screw is ejected suddenly.
Compared with prior art, the utlity model has following beneficial effect:
The utility model is simple in structure, easy to use, under the condition of detaching pipelines not, complete and vacuumize and oiling work, by distributor, will vacuumize with oiling work and separately carry out, both guaranteed the vacuum state of device interior, guaranteed again the sealing in oiling process, by fastening screw, regulate the position of metal expander fuel feeding valve sealed screw, saved the trouble of dismounting, working efficiency significantly improves.
Accompanying drawing explanation
Fig. 1 the utility model splits structural drawing.
Fig. 2 the utility model fastening screw structural representation.
In figure: 1, connect base; 2, fastening screw; 3, top cap; 4, hermetic collar; 5, connector; 6, horizontal cutter groove; 7, vacuum tube; 8, oil filler pipe; 9, vacuum valve; 10, oiling valve; 11, seal ring; 12, spacing line; 13, rectangular preiection.
Embodiment
Tying accompanying drawing explanation is below described further the utility model embodiment:
As shown in Figure 1-2, the multi-functional oiling valve of current transformer metal expander described in the utility model, comprise and connect base 1, fastening screw 2, top cap 3 and distributor, connect base 1 and be made as hollow tubular, its top arranges top cap 3, connect base 1 middle and lower part and be communicated with connector 5, connector 5 joins with distributor, connect base 1 inside fastening screw 2 is set, fastening screw 2 is made as integrative-structure, comprise top, middle part and bottom, fastening screw 2 middle part diameters be connected base 1 internal diameter and adapt, fastening screw 2 tops are the middle cylinder that is provided with horizontal cutter groove 6, fastening screw 2 top diameters are greater than middle part diameter, the corresponding horizontal cutter groove in fastening screw bottom arranges rectangular preiection 13.
Wherein, distributor comprises vacuum tube 7 and oil filler pipe 8, on vacuum tube 7 and oil filler pipe 8, be respectively equipped with vacuum valve 9 and oiling valve 10, vacuum tube 7, oil filler pipe 8 and connector 5 are connected by three-way pipe, can separately carry out vacuumizing with oiling work, be conducive to keep the vacuum state of device interior and the sealing in oiling process; Three-way pipe communicates with connector 5 by hermetic collar 13, good airproof performance in using process, and oil-proof, gas leakage, simultaneously can be according to the situation timely adjustment vacuum tube 7 of equipment and the position of oil filler pipe 8, flexibly and easily; The spool of described vacuum valve 9 is provided with circular hole and runs through the cylindrical of vacuum tube 7 for middle, circular hole is located at vacuum tube 7 inside, spool end is bolted, between bolt and vacuum tube 7, coil tension spring is set, oiling valve 10 arranges consistent with vacuum valve 9, and rotary spool can be realized the switching of vacuum valve 9, and bolt and coil tension spring can guarantee the stability of vacuum valve 9, can bear larger pressure, can not come off easily; Described fastening screw 2 middle parts are provided with seal ring 11 and spacing line 12, spacing line 12 is located at seal ring 11 tops, the position of spacing line 12 arranges according to the size of metal expander fuel feeding valve sealed screw, the distance that distance between spacing line 12 and fastening screw 2 tops and metal expander fuel feeding valve sealed screw need to rise is consistent, in the process of rotation fastening screw 2, occur that spacing line 12 can stop the rotation, spacing line 12 belows arrange seal ring 11, guarantee the sealing effect in oiling process.
When the utility model is used, first need to remove top cap 3, then connection base 1 is connected on metal expander vacuum oil valve joint, and keep sealing, now, fastening screw 2 bottom rectangular preiections 13 embed in metal expander fuel feeding valve sealed screw driver flutes, use screw-driver by horizontal cutter groove 6 rotation fastening screws, unclamp thus metal expander fuel feeding valve sealed screw and screw top cap.
The vacuum tube of distributor 7 and oil filler pipe 8 are communicated with vacuum-pumping pipeline and oil filling pipeline respectively, while vacuumizing, open vacuum valve 9, close oiling valve 10, when degree of vacuum reaches 133Pa, close vacuum pump and vacuum valve 9, open oiling valve 10 and carry out oiling, when oil level reaches normal oil level line, close oiling valve 10, open top cap 3, rotation fastening screw 2, utilize fastening screw 2 bottom rectangular preiection 13 fastening metal expander fuel feeding valve sealed screws, finally dismounting connects, install top cap 3, complete oiling, top cap 3 can prevent that in oiling process, fastening screw 2 is ejected suddenly.
Claims (5)
1. the multi-functional oiling valve of current transformer metal expander, it is characterized in that, comprise and connect base (1), fastening screw (2), top cap (3) and distributor, connect base (1) and be made as hollow tubular, its top arranges top cap (3), connect base (1) middle and lower part and be communicated with connector (5), connector (5) joins with distributor, connect base (1) inside fastening screw (2) is set, fastening screw (2) is made as integrative-structure, comprise top, middle part and bottom, fastening screw (2) middle part diameter be connected base (1) internal diameter and adapt, fastening screw (2) top is the cylinder that centre is provided with horizontal cutter groove (6), fastening screw (2) top diameter is greater than middle part diameter, the corresponding horizontal cutter groove in fastening screw (2) bottom (6) arranges rectangular preiection (13).
2. the multi-functional oiling valve of current transformer metal expander according to claim 1, it is characterized in that, described distributor comprises vacuum tube (7) and oil filler pipe (8), on vacuum tube (7) and oil filler pipe (8), be respectively equipped with vacuum valve (9) and oiling valve (10), vacuum tube (7), oil filler pipe (8) and connector (5) are connected by three-way pipe.
3. the multi-functional oiling valve of current transformer metal expander according to claim 2, is characterized in that, described three-way pipe communicates with connector (5) by hermetic collar (4).
4. according to the multi-functional oiling valve of the current transformer metal expander described in claim 2 or 3, it is characterized in that, the spool of described vacuum valve (9) is that centre is provided with circular hole and runs through the cylindrical of vacuum tube (7), circular hole is located at vacuum tube (7) inside, spool end is bolted, between bolt and vacuum tube, coil tension spring is set, oiling valve (10) arranges consistent with vacuum valve (9).
5. the multi-functional oiling valve of current transformer metal expander according to claim 1, it is characterized in that, described fastening screw (2) middle part is provided with seal ring (11) and spacing line (12), and spacing line (12) is located at seal ring (11) top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215490.2U CN203892627U (en) | 2014-04-29 | 2014-04-29 | Current transformer metal expander multifunctional oil injection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420215490.2U CN203892627U (en) | 2014-04-29 | 2014-04-29 | Current transformer metal expander multifunctional oil injection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892627U true CN203892627U (en) | 2014-10-22 |
Family
ID=51719032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420215490.2U Expired - Lifetime CN203892627U (en) | 2014-04-29 | 2014-04-29 | Current transformer metal expander multifunctional oil injection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443681A (en) * | 2021-01-18 | 2021-03-05 | 山东建华阀门制造有限公司 | Fine control valve with mixed discharging function |
-
2014
- 2014-04-29 CN CN201420215490.2U patent/CN203892627U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112443681A (en) * | 2021-01-18 | 2021-03-05 | 山东建华阀门制造有限公司 | Fine control valve with mixed discharging function |
| CN112443681B (en) * | 2021-01-18 | 2023-01-24 | 山东建华阀门制造有限公司 | Fine control valve with mixed discharging function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |