CN211228155U - Temporary plugging structure for steel box girder manhole - Google Patents
Temporary plugging structure for steel box girder manhole Download PDFInfo
- Publication number
- CN211228155U CN211228155U CN201921913254.7U CN201921913254U CN211228155U CN 211228155 U CN211228155 U CN 211228155U CN 201921913254 U CN201921913254 U CN 201921913254U CN 211228155 U CN211228155 U CN 211228155U
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- box girder
- steel box
- manhole
- annular boss
- temporary plugging
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Abstract
The utility model discloses an interim block structure of steel box girder manhole belongs to steel box girder construction technical field. This structure includes the steel box girder and with the mutually independent shutoff subassembly of steel box girder, the manhole has been seted up at the top of steel box girder, be equipped with annular boss B in the outside of manhole on the steel box girder, be equipped with the warning subassembly in annular boss B's the outside on the steel box girder, the shutoff subassembly is placed on annular boss B. The annular boss is welded and fixed on the steel box girder, so that accumulated water on the steel box girder is prevented from flowing into the steel box girder. The warning area plays the warning effect, avoids constructor carelessly to fall to the steel box girder in from the manhole, has effectively reduced the safety risk. The annular boss A and the annular boss B are matched with each other to limit the plugging component, so that the plugging component is prevented from sliding off the annular boss B. The plugging component can be conveniently moved by holding the handle with two hands, and the operation is simple and convenient. Has the advantages of simple structure, low manufacturing cost, reusability, flexible operation and the like.
Description
Technical Field
The utility model relates to an interim block structure of steel case roof beam manhole belongs to steel case roof beam structure technical field.
Background
In the construction process of a highway bridge, a manhole is sometimes required to be arranged on a steel box girder so that a person can conveniently enter the steel box girder to carry out construction operations such as welding, polishing, coating, quality detection and the like on the interior of the steel box girder; in order to ensure safety, simple sealing plates, steel reinforcement cages and the like are generally used for sealing manholes. But a gap exists between the simple sealing plate or the reinforcement cage and the manhole, and accumulated water on the steel box girder easily flows into the steel box girder from the gap; in addition, when the manhole is opened, constructors easily fall into the steel box girder from the manhole, and the safety risk is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a steel box girder manhole temporary plugging structure.
The utility model discloses a following technical scheme can realize:
the utility model provides an interim block structure of steel box girder manhole, includes the steel box girder and with steel box girder mutually independent's shutoff subassembly, the manhole has been seted up at the top of steel box girder, be equipped with annular boss B in the outside of manhole on the steel box girder, be equipped with the warning subassembly in annular boss B's the outside on the steel box girder, the shutoff subassembly is placed on annular boss B.
The middle part of the manhole is rectangular, and two ends of the manhole are semicircular.
The shape and the size of the inner wall of the annular boss B are consistent with those of a manhole.
The height of the annular boss B is 30-50 mm.
The plugging component comprises a cover plate and an annular boss A arranged at the bottom of the cover plate.
The shape and the size of the outer wall of the annular boss A are matched with those of the inner wall of the annular boss B.
The top of apron is equipped with two handles side by side.
The thickness of the cover plate is 5-10 mm.
The warning component is a warning tape stuck on the steel box girder.
The beneficial effects of the utility model reside in that: the annular boss is welded and fixed on the steel box girder, so that accumulated water on the steel box girder is prevented from flowing into the steel box girder. The warning area plays the warning effect, avoids constructor carelessly to fall to the steel box girder in from the manhole, has effectively reduced the safety risk. The annular boss A and the annular boss B are matched with each other to limit the plugging component, so that the plugging component is prevented from sliding off the annular boss B. The plugging component can be conveniently moved by holding the handle with two hands, and the operation is simple and convenient. Has the advantages of simple structure, low manufacturing cost, reusability, flexible operation and the like.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is a schematic structural diagram of the plugging assembly of the present invention.
In the figure: 1-handle, 2-cover plate, 3-annular boss A, 4-annular boss B, 5-steel box girder, 6-warning component.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
As shown in fig. 1 to 3, a interim block structure of steel box girder manhole, including steel box girder 5 and with 5 mutually independent block assembly of steel box girder, the manhole has been seted up at the top of steel box girder 5, the welding has annular boss B4 in the outside of manhole on the steel box girder 5, be equipped with warning subassembly 6 in the outside of annular boss B4 on the steel box girder 5, the block assembly is placed on annular boss B4.
The middle part of the manhole is rectangular, and two ends of the manhole are semicircular. When in use, the length and the width of the manhole are respectively 600mm and 400 mm.
The shape and size of the inner wall of the annular boss B4 are consistent with a manhole. When in use, the annular boss B4 is made of flat steel with the width of 40mm and the thickness of 10 mm. After the annular boss 4 is welded and fixed on the steel box girder 5, an angle grinder is used for rounding the inner edge and the outer edge at the top end of the annular boss 4, so that the edges are smooth, and the constructors are prevented from being cut.
The height of the annular boss B4 is 30-50 mm.
The plugging assembly comprises a cover plate 2 and an annular boss A3 welded at the bottom of the cover plate 2. When the cover plate is used, the middle part of the cover plate 2 is rectangular, the two ends of the cover plate are semicircular, and the length and the width of the cover plate 2 are 660mm and 460mm respectively.
The shape and the size of the outer wall of the annular boss A3 are matched with the inner wall of the annular boss B4. The annular boss A3 and the annular boss B4 are mutually matched to limit the plugging component, so that the plugging component is prevented from sliding off the annular boss B4.
Two handles 1 are welded on the top of the cover plate 2 side by side. When the plugging device is used, the handle 1 is made of phi 12 steel bars, so that a single person can conveniently take and place the plugging component by two hands.
The thickness of the cover plate 2 is 5-10 mm. On the premise of ensuring the structural strength and the bearing capacity of the cover plate 2, the smaller the thickness of the cover plate 2 is, the better the cover plate is, so that the total weight of the plugging component is reduced.
The warning component 6 is a warning tape stuck on the steel box girder 5. The warning area plays the warning effect, avoids constructor carelessly to fall to steel box girder 5 in from the manhole, has effectively reduced the safety risk.
In conclusion, the annular boss 4 is welded and fixed on the steel box girder 5 in a full-welding mode, so that accumulated water on the steel box girder 5 is prevented from flowing into the steel box girder 5. The warning area plays the warning effect, avoids constructor carelessly to fall to steel box girder 5 in from the manhole, has effectively reduced the safety risk. The annular boss A3 and the annular boss B4 are mutually matched to limit the plugging component, so that the plugging component is prevented from sliding off the annular boss B4. The plugging component can be conveniently moved by holding the handle 1 with two hands, and the operation is simple and convenient. Has the advantages of simple structure, low manufacturing cost, reusability, flexible operation and the like.
Claims (9)
1. The utility model provides a interim block structure of steel box girder manhole which characterized in that: include steel box girder (5) and with steel box girder (5) mutually independent shutoff subassembly, the manhole has been seted up at the top of steel box girder (5), be equipped with annular boss B (4) in the outside of manhole on steel box girder (5), be equipped with warning subassembly (6) in the outside of annular boss B (4) on steel box girder (5), the shutoff subassembly is placed on annular boss B (4).
2. The temporary plugging structure of the steel box girder manhole as claimed in claim 1, wherein: the middle part of the manhole is rectangular, and two ends of the manhole are semicircular.
3. The temporary plugging structure of the steel box girder manhole as claimed in claim 1, wherein: the shape and the size of the inner wall of the annular boss B (4) are consistent with those of a manhole.
4. The temporary plugging structure of the steel box girder manhole as claimed in claim 1, wherein: the height of the annular boss B (4) is 30-50 mm.
5. The temporary plugging structure of the steel box girder manhole as claimed in claim 1, wherein: the plugging component comprises a cover plate (2) and an annular boss A (3) arranged at the bottom of the cover plate (2).
6. The temporary plugging structure of steel box girder manhole according to claim 5, wherein: the shape and the size of the outer wall of the annular boss A (3) are matched with the inner wall of the annular boss B (4).
7. The temporary plugging structure of steel box girder manhole according to claim 5, wherein: the top of the cover plate (2) is provided with two handles (1) side by side.
8. The temporary plugging structure of steel box girder manhole according to claim 5, wherein: the thickness of the cover plate (2) is 5-10 mm.
9. The temporary plugging structure of the steel box girder manhole as claimed in claim 1, wherein: the warning component (6) is a warning belt stuck on the steel box girder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921913254.7U CN211228155U (en) | 2019-11-07 | 2019-11-07 | Temporary plugging structure for steel box girder manhole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921913254.7U CN211228155U (en) | 2019-11-07 | 2019-11-07 | Temporary plugging structure for steel box girder manhole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211228155U true CN211228155U (en) | 2020-08-11 |
Family
ID=71922623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921913254.7U Active CN211228155U (en) | 2019-11-07 | 2019-11-07 | Temporary plugging structure for steel box girder manhole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211228155U (en) |
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2019
- 2019-11-07 CN CN201921913254.7U patent/CN211228155U/en active Active
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