CN214186938U - Box transformer tapping switch overhauling tool - Google Patents
Box transformer tapping switch overhauling tool Download PDFInfo
- Publication number
- CN214186938U CN214186938U CN202022360279.8U CN202022360279U CN214186938U CN 214186938 U CN214186938 U CN 214186938U CN 202022360279 U CN202022360279 U CN 202022360279U CN 214186938 U CN214186938 U CN 214186938U
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- Prior art keywords
- handle
- working end
- box
- auxiliary
- box transformer
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- 238000010079 rubber tapping Methods 0.000 title claims abstract description 8
- 238000012423 maintenance Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model relates to a case becomes tapping switch maintenance instrument, including work end and the handle that links together, the contained angle has between work end central line and the handle central line, and one side that the work end was kept away from to the handle has the auxiliary end. After the working end, the handle and the auxiliary end are connected together, one side is a plane, the other side is an inclined plane, one side of the plane of the maintenance tool faces the surface of the box transformer, and the opening of the working end accommodates a nut needing to be fastened. The included angle between the working end and the handle is 10-20 degrees, so that the force application is easy. The nut at the position where oil leakage occurs can be directly fastened without disassembling the box transformer tap changer connecting piece, and the working efficiency is improved.
Description
Technical Field
The utility model relates to a hand tool field specifically is a case becomes tapping switch and overhauls instrument.
Background
In the electric operation and maintenance work, the oil leakage condition often appears at the high-voltage side tap switch of the box-type transformer, and the most common method for treating the oil leakage is to fasten a nut at the high-voltage side tap switch. However, the nut at the position is located on the surface of the box-type transformer, the nut is thin and limited in space, the tapping switch connecting piece is firstly disassembled in the existing maintenance, the nut at the position is fastened after the overhauling space is exposed, the efficiency is low, the connecting piece needs to be repeatedly disassembled and assembled, and the service life of the box-type transformer is influenced.
SUMMERY OF THE UTILITY MODEL
One or more embodiments provide the following technical solutions:
the utility model provides a case becomes tapping switch maintenance instrument, is including work end and the handle that links together, has the contained angle between work end central line and the handle central line, and one side that the work end was kept away from to the handle has supplementary end.
After the working end, the handle and the auxiliary end are connected together, one side of the working end, the handle and the auxiliary end are a plane, the other side of the working end is an inclined plane, and when the box transformer is used, one side of the plane is tightly attached to the surface of the box transformer.
The working end has an opening with a width of at least 40 mm.
The center of the auxiliary end is provided with a through hole, the side surface of the auxiliary end is a plane, and the surface of the auxiliary end is provided with anti-skid grains.
The through holes are in a regular hexagon or a rectangle and are connected with parts in corresponding shapes.
The thickness of the working end is not greater than the thickness of the fastened nut, and the thickness of the auxiliary end is at least 2 times the thickness of the working end.
The included angle between the working end and the handle is 10-20 degrees.
The steel is made of SS400 or steel with the strength grade higher than the grade.
The above one or more technical solutions have the following beneficial effects:
the nut at the position where oil leakage occurs can be directly fastened without disassembling the box transformer tap changer connecting piece, and the working efficiency is improved.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is a schematic front view of one or more embodiments of the present invention;
fig. 2 is a schematic side view of a structure provided by one or more embodiments of the present invention;
in the figure: 1. working end, 2, handle, 3, perforation, 4, auxiliary end.
Detailed Description
The following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As described in the background art, the most common method for treating oil leakage at the high-voltage side tap changer of the box-type transformer is to fasten a nut at the high-voltage side tap changer, the nut at the position is located on the surface of the box-type transformer, the nut is thin and has limited space, and the current maintenance needs to firstly remove a tap changer connecting piece and fasten the nut at the position after the overhaul space is exposed.
Example 1:
taking a tap changer nut with a width of 42mm as an example for explanation, the nut belongs to a thin nut, a conventional wrench with an opening width of 42mm occupies too large space, and cannot perform circular motion with the nut as a center at the position to realize fastening, and meanwhile, the opening thickness of the wrench is too large, so that the nut with the width of 42mm cannot be clamped and fixed on the premise of not dismounting a tap changer connecting piece, and therefore, the maintenance efficiency is low.
As shown in figures 1-2, the overhauling tool for the box transformer tap changer comprises a working end 1 and a handle 2 which are connected together, wherein the center lines of the working end 1 and the handle 2 form an included angle, and an auxiliary end 4 is arranged on one side, far away from the working end 1, of the handle 2.
The working end 1 has an opening with a width of at least 40mm capable of receiving a nut above M40.
The auxiliary end 4 has a through hole 3 in the center and the side of the auxiliary end 4 is flat for manual tapping or pulling the handle 2 with the through hole 3 using a cord.
The through holes 3 are regular hexagons and can be connected with hexagonal steel columns; or the rectangular steel column is connected with the rectangular steel column. Utilize the hexagonal steel column or the rectangle steel column of certain length, can be with originally being in the working face that the case becomes the surface and being converted into the working face of certain height apart from the case and becoming the surface, can avoid the restriction that the case becomes surface space. Which for convenience of illustration is circular.
For example: connect the long hexagonal steel post of 30cm on perforation 3, utilize conventional open-end spanner or solid wrench fastening this hexagonal steel post, can transmit the opening part of working end 1 with the tightening torque through hexagonal steel post, and be higher than and become the sheltering from of not having other parts of case change on the working face of 30cm in surface, the maintenance instrument of this moment is as the part of transmission tightening torque and no longer exert the function of knocking the spanner.
The thickness of the working end 1 is not greater than that of the fastened nut, and the thickness of the auxiliary end 4 is at least 2 times that of the working end 1.
For example: the working end 1 has a thickness of 5mm and the auxiliary end 4 has a thickness of 15mm, the handle 2 acting as a transition between the two, but in view of the force application, an oblique transition is required, i.e. the oblique portion shown in fig. 2.
One side of the working end 1, the handle 2 and the auxiliary end 4 is a plane, and the other side is an inclined plane, so that the tool can be tightly attached to the surface of the box transformer substation to fasten the nut. When in use, one side of the plane is tightly attached to the surface of the box transformer substation.
The included angle between the working end 1 and the handle 2 is 10-20 degrees, which ensures easy force application, and is 15 degrees in figure 1. The length of the handle 2 and the auxiliary end 4 serving as the force application part is lengthened to a certain extent due to the included angle, and meanwhile, the part on the surface of the box transformer substation can be avoided due to the included angle, so that the nut at the oil leakage position of the tap changer can be directly fastened on the premise of not dismantling the connection of the tap changer.
In use, with one side of the plane of the service tool facing the box-to-substation surface, the opening of the working end 1 accommodates the nut to be tightened, for example: the thin nut with the thickness of 42mm can ensure that the nut is clamped because the opening thickness of the working end 1 is not more than the thickness of the nut, the auxiliary end 4 with the larger thickness is knocked, and the nut with the thickness of 42mm is fastened in a knocking mode, so that the oil leakage maintenance work is completed.
The material that the maintenance instrument chose for use has certain toughness, because the thickness of work end 1 is less, and the thickness of auxiliary end 4 is great relatively, ensures that the difficult emergence of work end 1 is out of shape when being 5 mm.
For example, SS400 or steel with strength grade higher than the grade is selected for manufacturing.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
Claims (10)
1. The utility model provides a case becomes and divides wiring switch maintenance instrument which characterized in that: the multifunctional electric wrench comprises a working end and a handle which are connected together, an included angle is formed between the central line of the working end and the central line of the handle, and an auxiliary end is arranged on one side of the handle far away from the working end.
2. A box transformer tap switch maintenance tool according to claim 1, characterized in that: after the working end, the handle and the auxiliary end are connected together, one side of the working end, the handle and the auxiliary end are a plane, the other side of the working end, the handle and the auxiliary end are inclined planes, and one side of the plane faces the box-to-box surface.
3. A box transformer tap switch maintenance tool according to claim 1, characterized in that: the working end has an opening with a width of at least 40 mm.
4. A box transformer tap switch maintenance tool according to claim 1, characterized in that: the auxiliary end is centrally perforated.
5. A box transformer tap switch maintenance tool according to claim 1, characterized in that: the side of the auxiliary end is a plane, and the surface of the auxiliary end is provided with anti-skid grains.
6. A box change tapping switch maintenance tool of claim 4, characterized in that: the through hole in the center of the auxiliary end is in a regular hexagon or rectangle shape.
7. A box transformer tap switch maintenance tool according to claim 1, characterized in that: the working end has a thickness no greater than the thickness of the fastened nut.
8. A box transformer tap switch maintenance tool according to claim 1, characterized in that: the thickness of the auxiliary end is at least 2 times of the thickness of the working end.
9. A box transformer tap switch maintenance tool according to claim 1, characterized in that: the included angle between the central line of the working end and the central line of the handle is 10-20 degrees.
10. A box change tap switch service tool according to any one of claims 1 to 8, wherein: the steel is made of SS400 or the steel with the strength grade higher than that of SS 400.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022360279.8U CN214186938U (en) | 2020-10-21 | 2020-10-21 | Box transformer tapping switch overhauling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022360279.8U CN214186938U (en) | 2020-10-21 | 2020-10-21 | Box transformer tapping switch overhauling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214186938U true CN214186938U (en) | 2021-09-14 |
Family
ID=77642554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022360279.8U Active CN214186938U (en) | 2020-10-21 | 2020-10-21 | Box transformer tapping switch overhauling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214186938U (en) |
-
2020
- 2020-10-21 CN CN202022360279.8U patent/CN214186938U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |