CN219342865U - Closure device of steel pipe arch rib and bridge - Google Patents
Closure device of steel pipe arch rib and bridge Download PDFInfo
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- CN219342865U CN219342865U CN202320188828.9U CN202320188828U CN219342865U CN 219342865 U CN219342865 U CN 219342865U CN 202320188828 U CN202320188828 U CN 202320188828U CN 219342865 U CN219342865 U CN 219342865U
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- pipe
- main chord
- end wall
- closure device
- connecting pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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Abstract
The utility model provides a closure device of a steel pipe arch rib and a bridge, wherein the closure device comprises a first main chord pipe, a second main chord pipe and a connecting pipe which are coaxially arranged, the connecting pipe is movably arranged in the first main chord pipe and the second main chord pipe in a penetrating manner, and the first main chord pipe and the second main chord pipe are arranged at intervals; a chute is formed in the wall of the first main chord pipe or the second main chord pipe, and extends along the axial direction of the first main chord pipe; the pipe wall of the connecting pipe is provided with a pushing part, and the pushing part and the sliding groove are oppositely arranged along the radial direction of the connecting pipe; the first main chord pipe is provided with a first end wall close to the second main chord pipe; the second main chord tube is provided with a second end wall close to the first main chord tube; at least one of the first end wall and the second end wall is inclined in a direction away from the axis of the connecting tube; the first end wall, the outer peripheral wall of the connecting tube and the second end wall enclose a welding groove. The closure device provided by the utility model is convenient for welding operation, improves the quality of welding seams, and can accurately and smoothly engage the closure.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a closure device of a steel pipe arch rib and a bridge.
Background
Along with the continuous maturity of bridge construction technology in China, environmental protection standards are continuously improved, and the steel pipe concrete arch bridge is widely adopted when a bridge is erected in a river and a canyon, and as the bridge of the steel pipe concrete arch bridge can be arranged in the river without bridge piers, the local water quality is effectively protected. Because of special structure, the steel tube concrete arch bridge is inconvenient to transport and install as a whole, and is installed in a factory processing trial assembly and bridge position hoisting mode. The control of the precision of the closure section of the arch rib and the quality of seam welding in the installation process of the construction section of the steel tube arch bridge is the key of the bridge formation line shape and the stress of the steel tube arch bridge to meet the design.
The welding lining connecting plate to the interface can not be accurately installed in place when the arch ribs of the existing steel pipe arch bridge are closed, and the existing closure device is inconvenient to weld, so that the operation efficiency is low, the quality of welding seams is low, and the quality potential safety hazard is large.
Disclosure of Invention
In order to solve the problems of the prior art, a first object of the present utility model is to provide a closure device for steel pipe arch ribs, which facilitates welding operation, improves weld quality, and can accurately and smoothly butt-joint.
The second object of the utility model is to provide a bridge comprising the closure device of the steel pipe arch rib.
In order to achieve the first object, the closure device of the steel pipe arch rib provided by the scheme comprises a first main chord pipe, a second main chord pipe and a connecting pipe, wherein the first main chord pipe, the second main chord pipe and the connecting pipe are coaxially arranged, the connecting pipe is movably arranged in the first main chord pipe and the second main chord pipe in a penetrating mode, and the first main chord pipe and the second main chord pipe are arranged at intervals; a chute is formed in the wall of the first main chord pipe or the second main chord pipe, and extends along the axial direction of the first main chord pipe; the pipe wall of the connecting pipe is provided with a pushing part, and the pushing part and the sliding groove are oppositely arranged along the radial direction of the connecting pipe; the first main chord pipe is provided with a first end wall close to the second main chord pipe; the second main chord tube is provided with a second end wall close to the first main chord tube; at least one of the first end wall and the second end wall is inclined in a direction away from the axis of the connecting tube; the first end wall, the outer peripheral wall of the connecting pipe and the second end wall enclose a welding groove, and welding flux is arranged in the welding groove to fixedly connect the first main string pipe, the second main string pipe and the connecting pipe.
From the above, at least one of the first end wall or the second end wall of the scheme inclines towards the axis direction far away from the connecting pipe, the welding groove is formed by the outer peripheral wall of the first end wall and the connecting pipe and the second end wall, and the welding flux is arranged in the welding groove, so that the first main string pipe, the second main string pipe and the connecting pipe can be conveniently and fully welded by constructors, and the welding quality is improved.
The first end wall and the second end wall are both in a truncated cone shape, and an included angle between a bus of the truncated cone and the axis is 45 degrees.
The pushing part comprises a push rod which is in sliding connection with the chute.
The connecting pipe is detachably connected with the push rod.
From the above, the connecting pipe is detachably connected with the push rod, so that the additional acting force of external factors such as wind force and the like on the push rod can be effectively reduced, the risk of damage of the closure device is reduced, and the service life of the closure device is effectively prolonged.
The pushing part comprises a mounting hole, the mounting hole is arranged on the pipe wall of the connecting pipe, and the push rod is in plug-in fit with the mounting hole.
The number of the mounting holes is two, and the two mounting holes are opposite along the radial direction of the connecting pipe; the number of the sliding grooves is two, and the two sliding grooves are opposite along the radial direction of the connecting pipe; the two ends of the push rod respectively penetrate through the corresponding mounting holes and the corresponding sliding grooves and extend outwards along the radial direction from the outer surface of the pipe wall provided with the sliding grooves.
From the above, two mounting holes are opposite in the radial direction of the connecting pipe, two sliding grooves are opposite in the radial direction of the connecting pipe, and the push rod is arranged in the two mounting holes and the two sliding grooves in a penetrating manner, so that the connecting pipe is stressed more uniformly, moves smoothly and is connected accurately.
In order to achieve the second purpose, the bridge provided by the utility model comprises the closure device of any bridge steel pipe arch rib.
In summary, the closure device of the steel pipe arch rib provided by the scheme ensures that constructors can accurately and smoothly combine the connecting pipe with the main chord pipe, thereby facilitating welding operation and improving welding quality.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the closure device for a steel pipe arch rib of the present utility model.
Fig. 2 is a partial cross-sectional view of an embodiment of the closure device of the steel tube rib of the present utility model prior to closure.
Fig. 3 is a partial cross-sectional view of an embodiment of the closure device of the steel tube rib of the present utility model after closure.
Detailed Description
Referring to fig. 1 to 3, the closure device 1 for a steel pipe arch rib provided in this embodiment includes a first main chord tube 2, a second main chord tube 3 and a connecting tube 4 coaxially disposed, the first main chord tube 2 and the second main chord tube 3 are disposed at intervals, a first connecting slot 20 is disposed in the first main chord tube 2, a second connecting slot 30 is disposed in the second main chord tube 3, an opening of the first connecting slot 20 is disposed opposite to an opening of the second connecting slot 30, and the connecting tube 4 movably penetrates through the first connecting slot 20 and the second connecting slot 30. Two sliding grooves 5 are formed in the pipe wall of the first main chord pipe 2, the two sliding grooves 5 extend along the axial direction of the first main chord pipe 2, and the two sliding grooves 5 are opposite along the radial direction of the connecting pipe 4.
The pushing part is arranged on the pipe wall of the connecting pipe 4 and is opposite to the sliding groove 5 along the radial direction of the connecting pipe 4, the pushing part comprises a push rod 41 and two mounting holes 40, the two mounting holes 40 are opposite to each other along the radial direction of the connecting pipe 4, the two mounting holes 40 are correspondingly arranged with the two sliding grooves 5, two ends of the push rod 41 respectively penetrate through the corresponding mounting holes 40 and the corresponding sliding grooves 5 and extend along the radial direction from the outer surface of the pipe wall provided with the sliding grooves 5, and the push rod 41 is in sliding connection with the two sliding grooves 5.
The first main chord tube 2 is provided with a first end wall 21 close to the second main chord tube 3, the second main chord tube 3 is provided with a second end wall 31 close to the first main chord tube 2, the first end wall 21 and the second end wall 31 are inclined towards a direction away from the axis of the connecting tube 4, the first end wall 21 and the second end wall 31 are in a truncated cone shape, and an included angle between a bus bar of the truncated cone and the axis is 45 degrees. Alternatively, the included angle between the generatrix of the circular truncated cone and the axis can be 40 degrees or 60 degrees, etc. The first end wall 21, the outer peripheral wall of the connecting tube 4 and the second end wall 31 enclose a welding groove 6, and solder (not shown in the figure) is arranged in the welding groove 6, and the solder fixedly connects the first main string tube 2, the second main string tube 3 and the connecting tube 4.
Optionally, at least one of the first end wall and the second end wall is frustoconical and inclined away from the axis of the connecting tube.
When the butt joint installation of the steel pipe arch ribs is carried out, the push rod 41 is moved so that one end of the connecting pipe 4 is inserted into the second connecting groove 30, after the connecting pipe 4 is installed in place, the first main chord pipe 2, the second main chord pipe 3 and the connecting pipe 4 are welded and fixed, and finally the push rod 41 is pulled out.
To sum up, the closure device of steel pipe arch rib that this scheme provided for constructor can be accurate and smooth and easy butt joint with the connecting pipe, and convenient welding operation improves the welding seam quality.
It should be noted that the foregoing is only a preferred embodiment of the present utility model, but the design concept of the present utility model is not limited thereto, and any insubstantial modifications made to the present utility model by using the concept fall within the scope of the present utility model.
Claims (7)
1. The closure device of the steel pipe arch rib comprises a first main chord pipe, a second main chord pipe and a connecting pipe which are coaxially arranged, wherein the connecting pipe is movably arranged in the first main chord pipe and the second main chord pipe in a penetrating manner, and the first main chord pipe and the second main chord pipe are arranged at intervals;
the method is characterized in that:
a chute is formed in the wall of the first main chord pipe or the second main chord pipe, and the chute extends along the axial direction of the first main chord pipe;
the pipe wall of the connecting pipe is provided with a pushing part, and the pushing part and the sliding groove are oppositely arranged along the radial direction of the connecting pipe;
the first main chord pipe is provided with a first end wall close to the second main chord pipe;
the second main chord tube is provided with a second end wall close to the first main chord tube;
at least one of the first end wall and the second end wall is inclined in a direction away from an axis of the connecting tube;
the first end wall, the peripheral wall of the connecting pipe and the second end wall enclose a welding groove, and welding flux is arranged in the welding groove to fixedly connect the first main string pipe, the second main string pipe and the connecting pipe.
2. The closure device for steel pipe arches as set forth in claim 1, wherein:
the first end wall and the second end wall are both in a truncated cone shape, and an included angle between a bus of the truncated cone and the axis is 45 degrees.
3. A closure device for steel pipe arch ribs according to claim 1 or 2, characterized in that:
the pushing part comprises a push rod which is in sliding connection with the chute.
4. A closure device for steel pipe arches as claimed in claim 3, characterized in that:
the connecting pipe is detachably connected with the push rod.
5. The closure device for steel pipe arches as set forth in claim 4 wherein:
the pushing part comprises a mounting hole, the mounting hole is formed in the pipe wall of the connecting pipe, and the push rod is in plug-in fit with the mounting hole.
6. The closure device for steel pipe arches as set forth in claim 5, wherein:
the number of the mounting holes is two, and the two mounting holes are opposite along the radial direction of the connecting pipe;
the number of the sliding grooves is two, and the two sliding grooves are opposite along the radial direction of the connecting pipe;
the two ends of the push rod respectively penetrate through the corresponding mounting holes and the corresponding sliding grooves and extend outwards along the radial direction from the outer surface of the pipe wall provided with the sliding grooves.
7. Bridge, its characterized in that: closure device comprising a steel pipe arch rib according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320188828.9U CN219342865U (en) | 2023-02-08 | 2023-02-08 | Closure device of steel pipe arch rib and bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320188828.9U CN219342865U (en) | 2023-02-08 | 2023-02-08 | Closure device of steel pipe arch rib and bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219342865U true CN219342865U (en) | 2023-07-14 |
Family
ID=87107398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320188828.9U Active CN219342865U (en) | 2023-02-08 | 2023-02-08 | Closure device of steel pipe arch rib and bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219342865U (en) |
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2023
- 2023-02-08 CN CN202320188828.9U patent/CN219342865U/en active Active
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