CN208141973U - A kind of oil tank for oil immersion type transformer of lift-off seal performance - Google Patents
A kind of oil tank for oil immersion type transformer of lift-off seal performance Download PDFInfo
- Publication number
- CN208141973U CN208141973U CN201820635107.7U CN201820635107U CN208141973U CN 208141973 U CN208141973 U CN 208141973U CN 201820635107 U CN201820635107 U CN 201820635107U CN 208141973 U CN208141973 U CN 208141973U
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- CN
- China
- Prior art keywords
- fuel tank
- oil
- cap
- stud
- circular hole
- 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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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model relates to a kind of oil tank for oil immersion type transformer of lift-off seal performance, the oil tank body and fuel tank cap, the shell rim of the oil tank body top open part turns down outward fuel tank outer, a circle stud is circumferentially provided on the top end face of the fuel tank outer, wherein fuel tank cap edge is provided with the circular hole of corresponding stud, and fuel tank cap top is provided with the support column for being right against circular hole, the fixation channel with circular hole coaxial setting is provided on the support column, wherein stud top sequentially passes through corresponding circular hole and fixed channel and is bolted with nut, a circle seal gasket is provided between the fuel tank outer and fuel tank cap, a circle arc convex is wherein additionally provided on fuel tank outer, and fuel tank cap bottom edge is provided with a circle and corresponds to arc groove on arc convex.The utility model can effectively prevent fuel tank cap overhead-liquid and penetrate into fuel tank internal, to play good effect to the safety for promoting fuel tank, while be also convenient for the installment work between fuel tank cap and oil tank body.
Description
Technical field
The utility model relates to transformer technology field, in particular to the oil-immersed transformer oil of a kind of lift-off seal performance
Case.
Background technique
Power transformer is the necessaries of electrical power distribution, and oil immersed type may be selected because of different application environments in power transformer
Transformer or dry-type transformer, wherein oil-immersed transformer is mainly installed on outdoor electric pole.Wherein, oil-immersed transformer
Body (winding and iron core) is incorporated into the fuel tank full of transformer oil, and fuel tank is welded into steel plate.
Under the prior art, the fuel tank cap of oil-immersed transformer, oil tank body offer screw hole, and bolt passes through fuel tank cap and oil
Screw hole on case ontology, attaching nut are anchored on the bottom surface of fuel tank outer, often have liquid wherein being located in outdoor fuel tank cap
Body is penetrated into from the gap between bolt head and case lid to the screw hole for installing bolt, then the liquid penetrated into from screw hole holds
Inside transformer is penetrated into easily between fuel tank and case lid, is made transformer safety reduction, is influenced transformer station high-voltage side bus quality and use
Service life, and need to proceed as follows simultaneously when fitted bolt is with nut check, one pinches nut and rotates it not, separately
One needs to rotate bolt and it is made to be spirally connected with nut, more difficult so as to cause locking operation.
Such as a kind of oil-immersed transformer of lift-off seal performance of Publication No. CN 206363846U, although can solve
Leakproofness between fuel tank cap and oil tank body, but there are clearly disadvantageous places：As its needs in fuel tank outer bottom and dissipates
Bolt bottom end is fixed in small gap between backing, prevents in the nut of rotary oil tank tops that bolt can be together
Rotation, and since the kneading power of finger is limited, prevent its rotation then far from enough so depending merely on finger and pinching bolt head, it is necessary to
By handle insertion fuel tank outer and cooling fin bottom fixing bolt head, and narrow space is necessarily not easy to spanner being put into it
Inside operation, since spanner is inconvenient, may cause cannot be locked between nut and bolt, this can also cause fuel tank cap bottom
It cannot be locked between portion and oil tank body top and fuel tank outer, sealing effect is not achieved.
Summary of the invention
The purpose of this utility model is just to provide a kind of oil tank for oil immersion type transformer, prevents fuel tank cap overhead-liquid from penetrating into oil
Inside case, to play good effect to the safety for promoting fuel tank, while it being also convenient for the peace between fuel tank cap and oil tank body
Fill work.
The technical issues of the utility model, is mainly addressed by following technical proposals：
A kind of oil tank for oil immersion type transformer of lift-off seal performance, including oil tank body and fuel tank cap, the oil tank body
The shell rim of top open part turns down outward fuel tank outer, and the shell rim fold inward of fuel tank cap is buckled in outside fuel tank
Along upper fuel tank nut cap edge, it is circumferentially provided with a circle stud on the top end face of the fuel tank outer, wherein fuel tank cap edge is provided with
The circular hole of corresponding stud, and fuel tank cap top is provided with the support column for being right against circular hole, is provided with and circular hole on the support column
The fixation channel of coaxial arrangement, wherein stud top sequentially passes through corresponding circular hole and fixed channel, and is located at support top end
It is additionally provided with the nut being spirally connected with stud top, a circle seal gasket is provided between the fuel tank outer and fuel tank cap, wherein
The arc convex that a circle jacks up seal gasket is additionally provided on fuel tank outer, and arc convex is located at outside the fuel tank on the inside of stud
Along upper, fuel tank cap bottom edge bottom is provided with a circle and corresponds to arc convex and seal gasket is pressed on arc convex
Arc groove.
Preferably, the outer sealing rubber ring being cased between support column and nut bottom, the nut are straight on the stud
Diameter is greater than the diameter of support column and sealing rubber ring.
Preferably, the support column height is 0.5cm, and setting is integrated between support column and fuel tank cap.
Preferably, the through-hole passed through for stud is provided on the seal gasket.
The utility model has the beneficial effects that：
1, finger or tool fixed bolt are used due to not needing in the utility model, so can be very easily by nut and spiral shell
Column is spirally connected fixation, simultaneously because existing between at the top of the junction and fuel tank cap between support top end and nut bottom end high low
Difference, then the liquid at the top of fuel tank cap also reaches above-mentioned junction between the two, also just unlikely between the two
Junction is penetrated into fixed channel and circular hole.
2, fuel tank internal is penetrated into gap of the arc convex energy barrier liquid between seal gasket and fuel tank outer, and by arc
The seal gasket portion of arching upward that shape protrusion jacks up then can gap of the barrier liquid between fuel tank cap and seal gasket penetrate into fuel tank
Portion, to play positive effect to the safety for promoting fuel tank.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the top view of the utility model；
Fig. 3 is the cross-sectional view of fuel tank cap in the utility model；
Fig. 4 is the partial structural diagram of the utility model.
In figure：1, oil tank body, 2, fuel tank cap, 3, fuel tank outer, 4, fuel tank nut cap edge, 5, stud, 6, circular hole, 7, support
Column, 8, fixed channel, 9, nut, 10, seal gasket, 11, arc convex, 12, arc groove, 13, sealing rubber ring.
Specific embodiment
1-4 below by way of examples and with reference to the accompanying drawings makees more specifically the technical solution of the utility model
It is bright.
A kind of oil tank for oil immersion type transformer of lift-off seal performance, including oil tank body 1 and fuel tank cap 2, the oil tank body 1
For rectangular box, and the shell rim of the top open part of oil tank body 1 turn down outward have it is mutual with the outer wall of oil tank body 1
It is perpendicular to be formed by fuel tank outer 3, and have in the shell rim fold inward of fuel tank cap 2 and hang down mutually with the bottom surface of fuel tank cap 2
Fuel tank nut cap directly is formed by along 4, and wherein fuel tank nut cap is buckled on fuel tank outer 3 along 4, by fuel tank nut cap along 4 by fuel tank cap 2
Gap shielding between oil tank body 1 is lived, to prevent gap of the liquid between fuel tank cap 2 and oil tank body 1 from entering oil
Inside case.
Wherein circumferentially be provided with a circle stud 5 on 3 top end face of fuel tank outer, stud 5 be vertically arranged and with fuel tank outer 3
Welding, and the circular hole 6 of corresponding stud 5 is provided at 2 edge of fuel tank cap simultaneously, which is additionally provided with and its one
It is arranged and is right against the support column 7 of circular hole 6,7 height of support column is 0.5cm, and is provided on support column 5 coaxial with circular hole 6
The fixation channel 8 of setting, and 6 diameter of circular hole is equal with fixed 8 diameter of channel, then when installing fuel tank cap 2 by stud 5 with it is right
The circular hole 6 answered is aligned, and stud 5 is sequentially passed through corresponding circular hole 6 and fixed channel 8 and fuel tank cap 2 is covered in oil tank body 1
On, fuel tank cap 2 is locked on fuel tank outer 3 by the mode for the nut 9 that is then spirally connected on the stud 5 on 7 top of support column, while by
In not needing with finger or tool fixed bolt 5, so very easily nut 9 and stud 5 can be spirally connected fixation, and in this process
In for the sealing performance between 7 top of stiffnut 9 and support column, needed before nut 9 is screwed on 5 top of stud
Nut 9 and stud 5 are then spirally connected fuel tank cap 2 being locked at oil by the housing sealing rubber ring 13 on the stud 5 on 7 top of support column
On case ontology 1.
Simultaneously in order to reinforce the sealing performance between fuel tank cap 2 and fuel tank outer 3, as shown in figure 4, fuel tank outer 3 with
It is provided with a circle seal gasket 10 between fuel tank cap 2, and is provided with the through-hole passed through for stud 5 on seal gasket 10 (not
Diagram), then being laid on fuel tank outer 3 before installing fuel tank cap 2 firstly the need of by seal gasket 10, stud 5 is worn at this time
Through-hole is crossed to play position-limiting action to seal gasket 10, prevents its play, be then only by stud 5 pass through corresponding circular hole 6 and
Fixed channel 8, and have liquid that may penetrate into out of fixed channel 8 and circular hole 6 to fuel tank cap 2 at the top of fuel tank cap 2 in order to prevent
With the gap location between seal gasket 10, then penetrated between seal gasket 10 and fuel tank outer 3 by through-hole, liquid can at this time
Fuel tank internal, institute can be penetrated by the gap between fuel tank cap 2 and seal gasket 10 and between seal gasket 10 and fuel tank outer 3
To be additionally provided with the arc convex 11 that a circle jacks up seal gasket 10 on fuel tank outer 3, and arc convex 11 is located at spiral shell
3 on the fuel tank outer of 5 inside of column, while 2 bottom edge bottom of fuel tank cap is provided with a circle and corresponds to arc convex 11 and will seal
Rubber mat 10 is pressed on the arc groove 12 on arc convex 11, which can accommodate the arch of the seal gasket 10 jacked up
Play part, prevent fuel tank cap 2 from being jacked up by the arched part of seal gasket 10, wherein arc convex 11 can barrier liquid from sealant
Fuel tank internal is penetrated into gap between pad 10 and fuel tank outer 3, and 10 portion of arching upward of seal gasket jacked up by arc convex 11 is then
Fuel tank internal is penetrated into gap of the energy barrier liquid between fuel tank cap 2 and seal gasket 10, thus the safety to fuel tank is promoted
Play positive effect.
Due to existing between 2 top of the junction between 9 bottom end of 7 top of support column and nut and fuel tank cap in the present embodiment
The high and low fall of 0.5cm also just more can not then the liquid at 2 top of fuel tank cap also reaches above-mentioned junction between the two
It can be penetrated into from junction between the two in fixed channel 8 and circular hole 6, simultaneously because junction between these is also pacified
Equipped with sealing rubber ring 13 to play sealing function to gap between the two, further reaching prevents from depositing at the top of fuel tank cap 2
Liquid penetrates into the purpose in fixed channel 8 and circular hole 6.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (4)
1. a kind of oil tank for oil immersion type transformer of lift-off seal performance, including oil tank body and fuel tank cap, the oil tank body top
The shell rim of portion's opening turns down outward fuel tank outer, and the shell rim fold inward of fuel tank cap is buckled in fuel tank outer
On fuel tank nut cap edge, which is characterized in that a circle stud is circumferentially provided on the top end face of the fuel tank outer, wherein fuel tank cap side
Along the circular hole for being provided with corresponding stud, and fuel tank cap top is provided with the support column for being right against circular hole, is arranged on the support column
There is the fixation channel with circular hole coaxial setting, wherein stud top sequentially passes through corresponding circular hole and fixed channel, and is located at branch
Dagger top is additionally provided with the nut being spirally connected with stud top, and a circle sealant is provided between the fuel tank outer and fuel tank cap
Pad is wherein additionally provided with the arc convex that a circle jacks up seal gasket on fuel tank outer, and arc convex is located on the inside of stud
Fuel tank outer on, fuel tank cap bottom edge bottom is provided with a circle and corresponds to arc convex and seal gasket is pressed on arc
Arc groove in shape protrusion.
2. a kind of oil tank for oil immersion type transformer of lift-off seal performance according to claim 1, which is characterized in that the spiral shell
The outer sealing rubber ring being cased between support column and nut bottom, the nut diameter are greater than support column and sealing rubber ring on column
Diameter.
3. a kind of oil tank for oil immersion type transformer of lift-off seal performance according to claim 1, which is characterized in that the branch
Dagger height is 0.5cm, and setting is integrated between support column and fuel tank cap.
4. a kind of oil tank for oil immersion type transformer of lift-off seal performance according to claim 1, which is characterized in that described close
The through-hole passed through for stud is provided on potting pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820635107.7U CN208141973U (en) | 2018-05-01 | 2018-05-01 | A kind of oil tank for oil immersion type transformer of lift-off seal performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820635107.7U CN208141973U (en) | 2018-05-01 | 2018-05-01 | A kind of oil tank for oil immersion type transformer of lift-off seal performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208141973U true CN208141973U (en) | 2018-11-23 |
Family
ID=64310261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820635107.7U Expired - Fee Related CN208141973U (en) | 2018-05-01 | 2018-05-01 | A kind of oil tank for oil immersion type transformer of lift-off seal performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208141973U (en) |
-
2018
- 2018-05-01 CN CN201820635107.7U patent/CN208141973U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181123 Termination date: 20200501 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |