CN202523511U - Air exhaust plug - Google Patents
Air exhaust plug Download PDFInfo
- Publication number
- CN202523511U CN202523511U CN 201220158253 CN201220158253U CN202523511U CN 202523511 U CN202523511 U CN 202523511U CN 201220158253 CN201220158253 CN 201220158253 CN 201220158253 U CN201220158253 U CN 201220158253U CN 202523511 U CN202523511 U CN 202523511U
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- CN
- China
- Prior art keywords
- plug
- hole
- cock
- air exhaust
- plug body
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- 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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- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The utility model relates to an auxiliary element of a transformer, in particular to an air exhaust plug for carrying out air exhaust on oil-immersed transmission and transformation equipment. The air exhaust plug comprises a plug base and a plug body, wherein the diameter of the middle section of the plug body is larger than the diameters of two ends of the plug body; the outer walls of the two ends of the plug body are respectively provided with a thread, and an air exhaust channel which is penetrated in the vertical direction is arranged in the plug body; the plug base is internally provided with a through hole, wherein the upper part of the through hole is cylindrical, the inner diameter of the through hole is matched with the lower end of the plug body, the middle part of the through hole is conical, the lower part of the through hole is cylindrical, and a seal gasket is arranged at the middle part of the through hole; and the lower end of the plug body is connected with the plug base, and the upper end of the plug body is connected with a protection pipe. According to the utility model, the protection pipe is connected to the air exhaust plug and can guide oil flowing out of the transformer into an oil bucket in the air exhausting process so as to prevent transformer oil from polluting the environment and meet the requirements of a user on the environment. The air exhaust plug disclosed by the utility model has the advantages of reasonable structure, sealing reliability, convenience for operation and the like.
Description
Technical field
The utility model relates to a kind of transformer auxiliary element, relates in particular to a kind of air relief cock that is used for to oil immersed type power transmission and transforming equipment venting.
Background technology
In oil immersed type power transmission and transforming equipments such as power transformer when venting, be higher than in rising seat or the pipeline of exhaust outlet and can assemble some gases, for the gaseous emission will be here is clean, need air relief cock be installed at these positions, thereby avoids the normal operation of the equipment that influences.The base weldering of traditional air relief cock is dead on the body of transformer, and the air relief cock lower end cooperates with base through screw thread, seals with sealing gasket between air relief cock and the base.When venting, unscrew air relief cock, tighten air relief cock after venting finishes.Therefore in deflation course, can spray transformer oil unavoidably, and air relief cock can only temporarily cover with useless cloth, transformer oil is prone to flow on transformer body or the ground, contaminated environment.Along with the progress of transformer technology, the client is increasingly high to environment requirement, therefore is badly in need of traditional air relief cock is improved.
Summary of the invention
To the above-mentioned defective that existing air relief cock exists, the utility model improves the structure of air relief cock, on air relief cock, connects protecting tube, and the oil of discharging is imported oil drum, prevents contaminated environment.
The concrete technical scheme that the utility model adopts is following:
A kind of air relief cock comprises obturating plug and cock body, and characteristics are: said cock body stage casing diameter is greater than the two ends diameter, and the two ends outer wall is equipped with screw thread, is provided with the exhaust passage of vertical perforation in the cock body; Be provided with a through hole in the said obturating plug, through hole top is cylindrical, and its internal diameter matches with the cock body lower end, and the through hole middle part is taper, and the bottom is cylindrical, is provided with a sealing gasket at the through hole middle part; The cock body lower end is connected with obturating plug, and its upper end connects a protecting tube.
The break traditions constraint of air relief cock shape of the utility model; The cock body two ends all are provided with helicitic texture; Can connect obturating plug and protecting tube respectively; And the exhaust passage is set in cock body, and conveniently when venting, the transformer oil that flows out is imported oil drum through exhaust passage and protecting tube, prevent the oil pollution environment that sprays.In addition, for realizing that the periphery and the obturating plug of cock body are sealed and matched fully to effective control of venting; Only through the exhaust passage exhaust of cock body, for this reason, the through hole middle part in the obturating plug is made as taper; The bottom is made as less cylindrical of diameter, and after obturating plug and the transformer welding, cylindrical aperture communicates with transformer inside; One sealing gasket is arranged at cylindrical aperture top, seals through the squeezing action of cock body to sealing gasket.When tightening cock body, sealing gasket is pushed down cylindrical aperture, prevents the gas discharge, when the needs exhaust; Turn on cock body, the sealing gasket resilience, gas is discharged from cylindrical aperture, through the exhaust passage of cock body; Flow into protecting tube, when gas drains soon, have transformer oil to flow out; Also flow into protecting tube, reclaim, avoid causing environmental pollution through the exhaust passage.
For realizing excellent sealing to cylindrical aperture, to fully contact with the obturating plug inwall around the sealing gasket, therefore, preferred sealing gasket is spherical or oval spherical.
In addition, both sides and obturating plug and protecting tube contact position are provided with sealing ring up and down in the cock body stage casing, guarantee the sealing effectiveness that cock body is peripheral.
The utility model also comprises a cock cap, is used for when not exitting, replacing protecting tube and is connected with the cock body upper end, realizes the sealing to air relief cock.
The utility model connects protecting tube on air relief cock, can when venting, the transformer oil that flows out be imported oil drum, prevents the transformer oil contaminated environment, satisfies the user to environment requirement.Advantages such as that the utility model also has is rational in infrastructure, sealing is reliable, easy to operate.
Description of drawings
Be described in detail below in conjunction with the execution mode of accompanying drawing the utility model:
Fig. 1 is the cross-sectional schematic that the utility model connects protecting tube;
Fig. 2 is the cross-sectional schematic that the utility model connects cock cap;
Fig. 3 is the amplification cross-sectional schematic of cock body;
Among the figure, 1, protecting tube, 2, sealing ring, 3, obturating plug, 4, sealing gasket, 5, through hole, 6, the transformer body, 7, the exhaust passage, 8, cock body, 9, cock cap.
Embodiment
A kind of air relief cock comprises obturating plug 3, cock body 8, protecting tube 1 and cock cap 9, and is as shown in Figure 3, and said cock body 8 stage casing diameters are greater than the two ends diameter, and the two ends outer wall is equipped with screw thread, is provided with the exhaust passage 7 of vertical perforation in the cock body 8.As shown in Figure 1, perforate on transformer body 6 in advance is welded on tapping with obturating plug 3 bottoms.Be provided with a through hole 5 in the obturating plug 3, through hole 5 tops are cylindrical, and its internal diameter matches with cock body 8 lower ends, and through hole 5 middle parts are taper, the bottom be diameter much smaller than the upper end columniform small cylindrical, upper, middle, and lower part link up to cooperate.Be provided with an oval spherical sealing gasket 4 at through hole 5 middle parts, be used for sealing the small cylindrical hole.Cock body 8 lower ends are threaded with obturating plug 3, and when needing venting, cock body 8 upper ends are threaded with protecting tube 1; Both sides and obturating plug 3 are provided with sealing ring 2 with protecting tube 1 contact position up and down in cock body 8 stage casings; Turn on cock body 8, sealing gasket 4 resiliences, gas is 7 inflow protecting tubes 1 from small cylindrical aperture exhaust passage.When need not to exit, tighten cock body 8, unload protecting tube 1, set up cock cap 9, the protection cock body also prevents that gas from flowing out simultaneously.
Claims (4)
1. an air relief cock comprises obturating plug (3) and cock body (8), it is characterized in that: said cock body (8) stage casing diameter is greater than the two ends diameter, and the two ends outer wall is equipped with screw thread, is provided with the exhaust passage (7) of vertical perforation in the cock body (8); Be provided with a through hole (5) in the said obturating plug (3), through hole (5) top is cylindrical, and its internal diameter matches with cock body (8) lower end, and through hole (5) middle part is taper, and the bottom is cylindrical, is provided with a sealing gasket (4) at through hole (5) middle part; Cock body (8) lower end is connected with obturating plug (3), and its upper end connects a protecting tube (1).
2. air relief cock according to claim 1 is characterized in that: said sealing gasket (4) is for spherical or oval spherical.
3. air relief cock according to claim 1 and 2 is characterized in that: both sides and obturating plug (3) and protecting tube (1) contact position are provided with sealing ring (2) about cock body (8) stage casing.
4. air relief cock according to claim 3 is characterized in that: also comprise a cock cap (9), be used for when not exitting, replacing protecting tube (1) and be connected with cock body (8) upper end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220158253 CN202523511U (en) | 2012-04-16 | 2012-04-16 | Air exhaust plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220158253 CN202523511U (en) | 2012-04-16 | 2012-04-16 | Air exhaust plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202523511U true CN202523511U (en) | 2012-11-07 |
Family
ID=47106449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220158253 Expired - Fee Related CN202523511U (en) | 2012-04-16 | 2012-04-16 | Air exhaust plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202523511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646502A (en) * | 2012-04-16 | 2012-08-22 | 山东电力设备有限公司 | Air relief cock |
-
2012
- 2012-04-16 CN CN 201220158253 patent/CN202523511U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102646502A (en) * | 2012-04-16 | 2012-08-22 | 山东电力设备有限公司 | Air relief cock |
| CN102646502B (en) * | 2012-04-16 | 2015-07-08 | 山东电力设备有限公司 | Air relief cock |
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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: 20121107 Termination date: 20150416 |
|
| EXPY | Termination of patent right or utility model |