CN204309092U - Rotary shaft box girder inner formwork - Google Patents
Rotary shaft box girder inner formwork Download PDFInfo
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- CN204309092U CN204309092U CN201420729940.XU CN201420729940U CN204309092U CN 204309092 U CN204309092 U CN 204309092U CN 201420729940 U CN201420729940 U CN 201420729940U CN 204309092 U CN204309092 U CN 204309092U
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- internal mold
- support bar
- hinge
- secondary template
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Abstract
The utility model belongs to the technical field of bridge box and beam internal mold construction, for the difficulty of construction solving prefabricated box girder inner formwork dismounting is large, the technical problem that engineering time is long, provide a kind of rotary shaft box girder inner formwork, comprise left half secondary template and right half secondary template, left half secondary template connects with right half secondary template, left half secondary template comprises internal mold one and internal mold two, internal mold one is connected by rotating shaft with internal mold two, right half secondary template comprises internal mold three and internal mold four, internal mold three is connected by rotating shaft with internal mold four, internal mold upper end is provided with hinge, the lower end of internal mold is provided with lower hinge, upper hinge is arranged with lower hinge is vertical respectively, upper support bar is connected with upper hinge, lower support bar is connected with lower hinge, pull bar is vertical with upper lower support bar, pull bar, upper support bar and lower support bar three are bolted, one end of pull bar is provided with draw ring.The utility model structure is simple, and internal mold is removed convenient, reduces the labour intensity of workman, improves operating efficiency.
Description
Technical field
The utility model belongs to the technical field of bridge box and beam internal mold construction, is specifically related to a kind of rotary shaft box girder inner formwork.
Background technology
Along with the enforcement of strategy to develop western regions, it is more and more that high-grade highway occurs in gully area, western, northern zanjon danger.Bridge pier height is more and more higher, and prefabricated case beam will get more and more.At present, box girder inner formwork used in architectural engineering adopts single box structure, is arranged with dividing plate in case inner circumferential, but in internal mold demolishing process, due to the restriction of case inner height, internal mold all be splitted into fritter, could shift out in beam body after disintegration, waste time and energy, also reduce operating efficiency simultaneously.
Summary of the invention
The utility model is the technical problem that difficulty of construction is large, the engineering time is long solving prefabricated box girder inner formwork dismounting, provides a kind of rotary shaft box girder inner formwork.
The technical solution adopted in the utility model is as follows:
A kind of rotary shaft box girder inner formwork, comprise left half secondary template, right half secondary template, upper support bar, lower support bar, upper hinge, lower hinge, pull bar and draw ring, left half secondary template comprises internal mold one and internal mold two, the lower end of internal mold one is connected by rotating shaft with the upper end of internal mold two, right half secondary template comprises internal mold three and internal mold four, the lower end of internal mold three is connected by rotating shaft with the upper end of internal mold four, the top and bottom of left half secondary template connect with the top and bottom of the secondary template in the right side half respectively, the upper end of internal mold one and internal mold three is respectively arranged with hinge, the lower end of internal mold two and internal mold four is respectively arranged with lower hinge, upper hinge is arranged with lower hinge is vertical respectively, upper end and the upper hinge of upper support bar are bolted, lower end and the lower hinge of lower support bar are bolted, pull bar is arranged on the lower end of upper support bar, and it is vertical with lower support bar with upper support bar, pull bar, the lower end of upper support bar and the upper end three of lower support bar are bolted, one end of pull bar is provided with draw ring.
By adopting the utility model, when prefabricated case beam concrete reaches some strength, pulling pull bar by hoist engine, making box girder inner formwork easily depart from concrete, not only safe but also quick.
The beneficial effects of the utility model: structure is simple, internal mold is removed convenient, reduces the labour intensity of workman, improves operating efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model cross-sectional configuration schematic diagram;
Fig. 2 is the utility model longitudinal plane structure schematic diagram;
Fig. 3 is the structural representation of upper hinge;
Fig. 4 is the structural representation of lower hinge;
Fig. 5 is the structural representation of draw ring;
Fig. 6 is the structural representation of rotating shaft;
In figure: the rotating shaft of 1-internal mold one, 2-internal mold two, 3-internal mold three, 4-internal mold four, 5-, 6-upper support bar, 7-lower support bar, the upper hinge of 8-, hinge under 9-, 10-pull bar, 11-draw ring.
Detailed description of the invention
As Fig. 1, shown in 2, a kind of rotary shaft box girder inner formwork, comprise left half secondary template, right half secondary template, upper support bar 6, lower support bar 7, upper hinge 8, lower hinge 9, pull bar 10 and draw ring 11, left half secondary template comprises internal mold 1 and internal mold 22, the lower end of internal mold 1 is connected by rotating shaft 5 with the upper end of internal mold 22, right half secondary template comprises internal mold 33 and internal mold 44, the lower end of internal mold 33 is connected by rotating shaft 5 with the upper end of internal mold 44, the top and bottom of left half secondary template connect with the top and bottom of the secondary template in the right side half respectively, the upper end of internal mold 1 and internal mold 33 is respectively arranged with hinge 8, the lower end of internal mold 22 and internal mold 44 is respectively arranged with lower hinge 9, upper hinge 8 is arranged with lower hinge 9 is vertical respectively, upper end and the upper hinge 8 of upper support bar 6 are bolted, lower end and the lower hinge 9 of lower support bar 7 are bolted, pull bar 10 is arranged on the lower end of upper support bar 6, and it is vertical with lower support bar 7 with upper support bar 6, pull bar 10, the lower end of upper support bar 6 and the upper end three of lower support bar 7 are bolted, one end of pull bar 10 is provided with draw ring 11.
Concrete making of the present utility model:
1), the making of internal mold one and internal mold two, adopt that [channel-section steel of 8 as skeleton, determine according to the size of box girder inner formwork by the length of every root channel-section steel, adopts the steel plate of δ 6 as panel.After material preparation, panel and frame welding are formed, and carry out the connecting hole of φ 18.Internal mold one is connected by rotating shaft with internal mold two.
2), the making of internal mold three and internal mold four, adopt that [channel-section steel of 8 as skeleton, determine according to the size of box girder inner formwork by the length of every root channel-section steel, adopts the steel plate of δ 6 as panel.After material preparation, panel and frame welding are formed, and carry out the connecting hole of φ 18.Internal mold three is connected by rotating shaft with internal mold four.
3), the making of upper twisted point and lower twisted point, adopt [channel-section steel of 6 fill the span of a man's arms with Plate Welding to together be made, as shown in Figure 3,4.
4), the making of draw ring, with the screw-thread steel of φ 28, length is 60cm, becomes radius to be the semi-circular structure of 11.2cm, as shown in Figure 5 from screw-thread steel bent intermediate.
5), the making of pivot structure, be that the steel pipe of 4.8cm is divided into two joints that length is 4cm by diameter, length is a joint of 8cm, is that the steel pipe of 4cm is welded on internal mold one, internal mold three by length, length be the steel-pipe welding of 8cm on internal mold two, internal mold four, as shown in Figure 6.
6), the making of upper support bar and lower support bar, with [channel-section steel of 8, length is 60cm, and two connects with bolt respectively.
Claims (1)
1. a rotary shaft box girder inner formwork, it is characterized in that: comprise left half secondary template, right half secondary template, upper support bar (6), lower support bar (7), upper hinge (8), lower hinge (9), pull bar (10) and draw ring (11), left half secondary template comprises internal mold one (1) and internal mold two (2), the lower end of internal mold one (1) is connected by rotating shaft (5) with the upper end of internal mold two (2), right half secondary template comprises internal mold three (3) and internal mold four (4), the lower end of internal mold three (3) is connected by rotating shaft (5) with the upper end of internal mold four (4), the top and bottom of left half secondary template connect with the top and bottom of the secondary template in the right side half respectively, the upper end of internal mold one (1) and internal mold three (3) is respectively arranged with hinge (8), the lower end of internal mold two (2) and internal mold four (4) is respectively arranged with lower hinge (9), upper hinge (8) is arranged with lower hinge (9) is vertical respectively, upper end and the upper hinge (8) of upper support bar (6) are bolted, lower end and the lower hinge (9) of lower support bar (7) are bolted, pull bar (10) is arranged on the lower end of upper support bar (6), and it is vertical with lower support bar (7) with upper support bar (6), pull bar (10), the lower end of upper support bar (6) and the upper end three of lower support bar (7) are bolted, one end of pull bar (10) is provided with draw ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729940.XU CN204309092U (en) | 2014-11-29 | 2014-11-29 | Rotary shaft box girder inner formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420729940.XU CN204309092U (en) | 2014-11-29 | 2014-11-29 | Rotary shaft box girder inner formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204309092U true CN204309092U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420729940.XU Active CN204309092U (en) | 2014-11-29 | 2014-11-29 | Rotary shaft box girder inner formwork |
Country Status (1)
| Country | Link |
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| CN (1) | CN204309092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214826A (en) * | 2017-07-26 | 2017-09-29 | 中国水利水电第十四工程局有限公司 | The steel die device and its construction method of a kind of hollow slab girder prefabricated construction |
-
2014
- 2014-11-29 CN CN201420729940.XU patent/CN204309092U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214826A (en) * | 2017-07-26 | 2017-09-29 | 中国水利水电第十四工程局有限公司 | The steel die device and its construction method of a kind of hollow slab girder prefabricated construction |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |