CN211455487U - Prevention of seepage water structure of transformer - Google Patents
Prevention of seepage water structure of transformer Download PDFInfo
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- CN211455487U CN211455487U CN202020249544.2U CN202020249544U CN211455487U CN 211455487 U CN211455487 U CN 211455487U CN 202020249544 U CN202020249544 U CN 202020249544U CN 211455487 U CN211455487 U CN 211455487U
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- outer edge
- bolt
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Abstract
The utility model relates to a prevention of seepage water structure of transformer, including oil tank body and oil tank cap, the casing edge of oil tank body open-top portion is outwards rolled over and is rolled over and have the oil tank outer edge, and the casing edge of oil tank cap still inwards rolls over and has the oil tank cap edge, oil tank body lateral wall top is provided with the round support bar, and wherein the department is provided with the rectangle recess of buckleing on this circle support bar in the middle of the oil tank cap bottom, and still is provided with the round between the outer edge of oil tank cap and oil tank and seals up the pad, the oil tank is provided with the through-hole outward along last, and wherein oil tank cap edge bottom is provided with the screwed pipe that extends to in corresponding the through-hole, and is provided with the screw with the screwed pipe intercommunication on the oil tank cap bottom face, the oil tank is provided with the bolt outward along the bottom, and. The utility model discloses can effectively prevent the liquid infiltration fuel tank cap at fuel tank cap top and the outer problem of following between and still probably permeating in the oil tank simultaneously of oil tank cap top.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to a water seepage prevention structure of a transformer.
Background
The power transformer is a necessary device for power transmission and distribution, and the power transformer can be an oil-immersed transformer or a dry-type transformer according to different application environments, wherein the oil-immersed transformer is mainly arranged on an outdoor telegraph pole. The body (winding and iron core) of the oil-immersed transformer is arranged in an oil tank filled with transformer oil, and the oil tank is welded by steel plates.
Under the prior art, oil tank cap of oil-immersed transformer, the screw has been seted up to the oil tank body, the screw on oil tank cap and the oil tank body is passed to the bolt, the cooperation nut fastens in the bottom surface on the outer edge of oil tank, wherein lie in outdoor oil tank cap and often can silted up more rainwater or other liquid, and the easy bolt head of the liquid of siltation and the gap infiltration between the case lid are to being used for the screw of construction bolt in, inside the infiltration transformer between oil tank and case lid is easily followed to the liquid from the screw infiltration so, make the transformer security reduce, influence transformer running quality and life.
Such as a novel oil-immersed transformer with publication number CN208271693U, an oil-immersed transformer tank with publication number CN208111250U, an oil-immersed transformer tank with water seepage prevention structure of a transformer with publication number CN208141973U, an oil-immersed transformer with publication number CN208141972U, etc., although such design can solve the above problems to some extent, when in use, as long as a hole (no matter a mounting hole, a screw hole or other holes) for mounting a bolt is provided at the top of the oil tank cap, then the top of the oil tank cap inevitably has liquid to permeate between the oil tank cap and the outer edge of the oil tank through the above holes and possibly permeate into the oil tank at the same time, and the above device only achieves the problem of controlling the amount of liquid between the oil tank cap and the outer edge of the oil tank through the above holes, however, more or less liquid can permeate between the oil tank cap and the outer edge of the oil tank through.
Disclosure of Invention
The invention aims to provide a water seepage prevention structure of a transformer, which can effectively prevent the problem that liquid on the top of a fuel tank cover can seep into the space between the fuel tank cover and the outer edge of a fuel tank and can seep into the fuel tank.
The technical problem of the invention is mainly solved by the following technical scheme:
a water seepage preventing structure of a transformer comprises an oil tank body and an oil tank cover, wherein the edge of a shell at the opening part at the top of the oil tank body is outwards turned and folded to form an outer edge of the oil tank, the oil tank cover is tightly attached to the outer edge of the oil tank, the edge of the shell of the oil tank cover is inwards turned and folded to form an oil tank cover brim buckled on the outer edge of the oil tank, the top end of the side wall of the oil tank body is provided with a circle of supporting strip, the middle part of the bottom of the oil tank cover is provided with a rectangular groove buckled on the circle of supporting strip, the bottom of the outer side wall of the supporting strip is also provided with a circle of arc-shaped clamping groove, a circle of sealing gasket is arranged between the oil tank cover and the outer edge of the oil tank, the top end of the inner side wall of the sealing gasket is clamped into the arc-shaped clamping groove, the outer edge of, the rod body of the bolt is fixed with the screw pipe and the screw hole in a threaded manner, an overflow groove is radially arranged on the head end surface of the bolt close to the rod body, and the height of the top end surface of the oil tank cover is gradually reduced from the middle area of the bolt to the periphery of the bolt.
Preferably, the head of the bolt is larger than the inner diameter of the through hole, the rod body of the bolt penetrates through the round hole in the sealing gasket, and the distance between the top end of the bolt and the top end of the screw hole is not smaller than 0.5 cm.
Preferably, the edge of the top of the supporting bar is provided with a fillet.
Preferably, the bottom end of the spiral pipe is higher than the horizontal plane of the bottom end of the outer edge of the oil tank.
Preferably, the bottom end of the fuel tank cap edge is not lower than the horizontal plane of the bottom end of the outer edge of the fuel tank.
Preferably, the inner diameter of the screw hole is equal to the inner diameter of the screw pipe.
The invention has the beneficial effects that:
1. the oil tank cover is locked on the outer edge of the oil tank in a screw connection mode of the bolt, the screw pipe and the screw hole, and at the moment, the oil tank cover does not need to be provided with any hole for installation of the bolt, so that even if liquid exists on the top of the oil tank cover, the liquid cannot penetrate into the space between the oil tank cover and the outer edge of the oil tank through the hole as before, and the positive effect is achieved on improving the installation environment of the joint between the oil tank cover and the oil tank.
2. In the invention, even if liquid exists between the oil tank cover and the outer edge of the oil tank, when the liquid permeates through the gap between the spiral pipe and the mounting hole and seeps into the through hole at the bottom of the spiral pipe, the part of the liquid seeps out to the outer side of the transformer through the overflow groove, and the liquid cannot be deposited in the through hole for a long time to aggravate the corrosion of the through hole.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the fuel tank cap according to the present invention;
fig. 3 is a schematic view of the structure of the bolt of the present invention.
In the figure: 1. the oil tank body, 2, the oil tank cap, 3, the oil tank outer edge, 4, the oil tank cap edge, 5, the support bar, 6, the recess, 7, the draw-in groove, 8, sealed the pad, 9, the through-hole, 10, the screwed pipe, 11, the screw, 12, the bolt, 13, the overflow launder, 14, the round hole.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings 1-3.
The utility model provides a prevention of seepage water structure of transformer, including oil tank body 1 and oil tank cap 2, this oil tank body 1 is the rectangle box, and the casing edge of the opening part at the top of oil tank body 1 turns over outwards to have the outer edge 3 of oil tank that forms with the outer wall mutually perpendicular of oil tank body 1, and turn over inwards at the casing edge of oil tank cap 2 and turn over the oil tank cap brim 4 that forms with the bottom surface mutually perpendicular of oil tank cap 2, wherein oil tank cap brim 4 detains on the outer edge 3 of oil tank, shelter from the gap between oil tank cap 2 and the oil tank body 1 through oil tank cap brim 4, in order to prevent that there is liquid to get into inside the oil tank from the gap between oil tank cap 2 and the oil tank body 1 outside the transformer.
Wherein be provided with the support bar 5 that the round set up rather than an organic whole on 1 lateral wall top of oil tank body, and oil tank cap 2 bottom middle department is provided with detains the rectangle recess 6 on this circle support bar 5, as shown in figure 1, when the outside has liquid to infiltrate through the clearance between 3 along the oil tank cap 2 and the oil tank outer edge, liquid is when contacting 5 lateral walls of support bar, because there is the height fall that highly is 0.5 ~ 1cm between 3 along the oil tank outer edge and the 5 top of support bar this moment, lead to liquid can not overflow to 5 top departments of support bar and by its and the infiltration oil tank cap 2 between the clearance department in the oil tank, this has played positive effect to the security that promotes oil tank interior equipment, operation quality and life.
A circle of sealing gasket 8 is arranged between the oil tank cover 2 and the outer edge 3 of the oil tank, the sealing gasket 8 is tightly pressed on the outer edge 3 of the oil tank through the oil tank cover 2 to move upwards so as to improve the sealing performance between the oil tank cover and the oil tank, wherein even if the sealing gasket 8 is adhered to the outer edge 3 of the oil tank, the sealing gasket 8 is driven to slide on the supporting strip 5 when the oil tank cover 2 is lifted, therefore, the bottom of the outer side wall of the supporting bar 5 is also provided with a circle of arc-shaped clamping groove 7, the top end of the inner side wall of the sealing gasket 8 is clamped in the arc-shaped clamping groove 7, the clamping groove 7 clamps the top end of the inner side of the sealing gasket 8, so that the oil tank cover 2 can be hung by the clamping groove 7 and cannot slide upwards when the sealing gasket 8 is driven to slide upwards, when the telescopic sealing gasket 8 is mounted or dismounted, the telescopic sealing gasket 8 can be pulled outwards to ensure that the opening of the telescopic sealing gasket is temporarily expanded and sleeved on the supporting bar 5, so that the mounting or dismounting work is realized.
Meanwhile, the outer edge 3 of the oil tank is provided with a through hole 9, the bottom of the edge of the oil tank cover 2 is provided with a screwed pipe 10 extending into the corresponding through hole 9, the bottom end surface of the oil tank cover 2 is provided with a screw hole 11 communicated with the screwed pipe 10, as shown in figure 1, the bottom of the outer edge 3 of the oil tank is provided with a bolt 12, the rod body of the bolt 12 is fixedly connected with the screwed pipe 10 and the screw hole 11 in a threaded manner and passes through a round hole 14 on a sealing gasket 8, the oil tank cover 2 is locked on the outer edge 3 of the oil tank by the threaded manner of the bolt 12, the bolt 12 is not required to be provided with any hole for the installation work of the bolt, even if liquid is arranged at the top of the oil tank cover 2, the liquid cannot penetrate into the space between the oil tank cover 2 and the outer edge 3 of the oil tank through the hole as before, the positive effect is achieved on improving the, and the distance between the top end of the bolt 12 and the top end of the screw hole 11 is not less than 0.5cm, so that the bolt 12 is prevented from possibly contacting the top wall of the screw hole 11 after being screwed with the screw hole 11, the top wall of the bolt 12 is propped against the top end of the rod of the bolt 12, the head of the bolt 12 is prevented from contacting the bottom end surface of the outer edge 3 of the oil tank, and the bolt 12 cannot well lock the oil tank cover 2 on the outer edge 3 of the oil tank.
In this embodiment, the bottom end of the screw tube 10 is higher than the bottom end horizontal surface of the outer edge 3 of the oil tank, so that when the bolt 12 is screwed and locked with the screw tube 10, the bottom end of the screw tube 10 will abut against the head of the bolt 12, so that the bolt 12 will not be tightly attached to the outer edge 3 of the oil tank, thereby affecting the locking of the oil tank cap 2 on the outer edge 3 of the oil tank, and the end surface of the head of the bolt 12 near the rod body is radially provided with an overflow groove 13, so that even if there is liquid between the oil tank cap 2 and the outer edge 3 of the oil tank, the liquid penetrates through the gap between the screw tube 10 and the through hole 9 and seeps into the through hole 9 at the bottom of the screw tube 10, the liquid will seep out to the outside of the transformer.
As a preferable scheme, as shown in fig. 2, the height of the top end surface of the fuel tank cap 2 of the present embodiment is gradually reduced from the middle area to the periphery thereof, and since the top end surface of the fuel tank cap 2 is a structure with a middle height and a bottom end at the periphery, when liquid drops to the top of the fuel tank cap 2, the liquid will flow to the periphery thereof along the arc-shaped top surface of the fuel tank cap 2 and drop, so that the liquid will not be deposited on the top of the fuel tank cap 2 for a long time or in a large amount, which has a positive effect on the improvement of the installation environment of the top components of the fuel tank cap 2.
As shown in fig. 1, the edge at the top of the supporting strip 5 is provided with a fillet which is easy to guide the supporting strip 5 to slide into the groove 6, and the bottom end of the oil tank cap brim 4 is not lower than the bottom horizontal plane of the oil tank outer brim 3 in this embodiment, so that when the head of the bolt 12 is twisted by a wrench, the bottom end of the oil tank cap brim 4 cannot abut against the wrench to be horizontally placed, thereby affecting the rotation of the bolt 12 by the wrench.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. A water seepage preventing structure of a transformer comprises an oil tank body and an oil tank cover, wherein the edge of a shell at the opening part at the top of the oil tank body is outwards turned and folded to form an outer edge of the oil tank, the oil tank cover is tightly attached to the outer edge of the oil tank, the edge of the shell of the oil tank cover is inwards turned and folded to form an oil tank cover brim buckled on the outer edge of the oil tank, the water seepage preventing structure is characterized in that the top end of the side wall of the oil tank body is provided with a circle of supporting strip, the middle part of the bottom of the oil tank cover is provided with a rectangular groove buckled on the circle of supporting strip, the bottom part of the outer side wall of the supporting strip is also provided with a circle of arc-shaped clamping groove, a circle of sealing gasket is also arranged between the oil tank cover and the outer edge of the oil tank, the top end of the inner side wall of the sealing, the oil tank is characterized in that a bolt is arranged at the bottom of the outer edge of the oil tank, a rod body of the bolt is fixedly connected with a screw pipe and a screw hole in a threaded mode, an overflow groove is radially arranged on the end face of the head portion, close to the rod body, of the bolt, and the height of the top end face of the oil tank cover is gradually reduced from the middle area of the top end face of the oil tank cover towards the periphery.
2. The transformer seepage prevention structure according to claim 1, wherein the head of the bolt is larger than the inner diameter of the through hole, the shaft of the bolt penetrates through the round hole in the gasket, and the distance between the top end of the bolt and the top end of the screw hole is not less than 0.5 cm.
3. The transformer seepage prevention structure as claimed in claim 1, wherein the corner edges at the tops of the supporting bars are provided with rounded corners.
4. The water seepage prevention structure of the transformer according to claim 1, wherein the bottom end of the spiral pipe is higher than the level of the bottom end of the outer edge of the oil tank.
5. The water seepage prevention structure of the transformer according to claim 1, wherein the bottom end of the tank cap brim is not lower than the level of the bottom end of the outer edge of the oil tank.
6. The transformer seepage prevention structure as claimed in claim 1, wherein the inner diameter of the screw hole is equal to the inner diameter of the solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249544.2U CN211455487U (en) | 2020-03-04 | 2020-03-04 | Prevention of seepage water structure of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020249544.2U CN211455487U (en) | 2020-03-04 | 2020-03-04 | Prevention of seepage water structure of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211455487U true CN211455487U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020249544.2U Active CN211455487U (en) | 2020-03-04 | 2020-03-04 | Prevention of seepage water structure of transformer |
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| Country | Link |
|---|---|
| CN (1) | CN211455487U (en) |
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2020
- 2020-03-04 CN CN202020249544.2U patent/CN211455487U/en active Active
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