CN220538384U - Assembled railway construction temporary bridge crossing oil pipeline - Google Patents
Assembled railway construction temporary bridge crossing oil pipeline Download PDFInfo
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- CN220538384U CN220538384U CN202321955502.0U CN202321955502U CN220538384U CN 220538384 U CN220538384 U CN 220538384U CN 202321955502 U CN202321955502 U CN 202321955502U CN 220538384 U CN220538384 U CN 220538384U
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- 238000010276 construction Methods 0.000 title claims abstract description 32
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 78
- 239000010959 steel Substances 0.000 claims abstract description 78
- 239000002689 soil Substances 0.000 abstract description 4
- 238000009412 basement excavation Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 230000006870 function Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000009415 formwork Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The application provides an assembled railway construction temporary bridge of striding across oil pipeline, include: at least two preset foundations, wherein the preset foundations are configured on the ground, the preset foundations are configured to extend along the length direction of the oil pipeline, one preset foundation is configured on one side of the oil pipeline along the width direction of the oil pipeline, and the other preset foundation is configured on the other side of the oil pipeline along the width direction of the oil pipeline; the preset longitudinal beams are detachably arranged on the tops of at least two preset foundations; and the steel plate layer is detachably arranged on the top of the preset longitudinal beam and covers the top of the preset longitudinal beam. The device is convenient to assemble and disassemble, high in assembly and disassembly efficiency and free of excavation of foundation pits, and therefore disturbance to undisturbed soil embedded with an oil pipeline can be reduced.
Description
Technical Field
The application relates to a construction temporary bridge, in particular to an assembled railway construction temporary bridge crossing an oil pipeline.
Background
The construction temporary bridge is to construct a temporary road or temporary bridge to ensure the smoothness of the original road in the road bridge repairing construction process, so as to facilitate traffic. At present, the problem that a construction temporary bridge needs to span an oil pipeline exists in some earthworks, the oil pipeline is generally buried underground, when a construction vehicle passes over the oil pipeline, the underground oil pipeline is easy to generate structural damage due to pressure transferred by an upper soil layer due to the problems of high load of the construction vehicle, large transport capacity, frequent passing movement of the construction vehicle and the like, and the oil pipeline is required to be protected.
At present, protection is generally carried out by arranging a cover plate culvert above an oil pipeline, when the cover plate culvert is built, excavation of a foundation pit, tamping of a substrate, foundation and cushion layer construction, foundation reinforcement manufacturing and installation, foundation formwork installation, foundation concrete pouring, body reinforcement manufacturing and installation, body formwork installation, body concrete pouring, prefabrication, cover plate hoisting (cast-in-situ cover plate), affiliated engineering construction are needed, the problems of long construction period and low efficiency exist, the cover plate culvert is put into one-time, materials cannot be recycled, and the cost is high.
Disclosure of Invention
The embodiment of the application provides an assembled railway construction temporary bridge crossing an oil pipeline, which solves the problems existing in the related art and comprises the following technical scheme:
the embodiment of the application provides an assembled railway construction temporary bridge crossing over an oil pipeline, which comprises the following components:
the preset foundations are configured on the ground, the preset foundations are configured to extend along the length direction of the oil pipeline, one preset foundation is configured on one side of the oil pipeline along the width direction of the oil pipeline, and the other preset foundation is configured on the other side of the oil pipeline along the width direction of the oil pipeline;
the preset longitudinal beams are detachably arranged on the tops of at least two preset foundations, and two ends of the preset longitudinal beams along the length direction are configured to extend to the ground; and
the steel sheet layer, the steel sheet layer detachable install in on the top of preset longeron, just the steel sheet layer covers the top of preset longeron.
In one embodiment, the preset foundation is provided with a hanging ring, and the hanging ring is used for being connected with a hoisting device so as to hoist the preset foundation.
In one embodiment, the number of the hanging rings is two, one hanging ring is arranged on the top of one end of the preset foundation along the length direction of the preset foundation, and the other hanging ring is arranged on the top of the other end of the preset foundation along the length direction of the preset foundation.
In one embodiment, the preset foundation is a foundation made of concrete.
In one embodiment, the preset stringers are frame structures made of steel.
In one embodiment, the number of preset bases is two, and the preset stringers include:
the longitudinal beam main body extends along the horizontal direction, one end of the longitudinal beam main body along the length direction of the longitudinal beam main body is detachably arranged on the top of one preset foundation, and the other end of the longitudinal beam main body along the length direction of the longitudinal beam main body is detachably arranged on the top of the other preset foundation; and
and one inclined strut is arranged at one end of the longitudinal beam main body along the length direction of the longitudinal beam main body, the other inclined strut is arranged at the other end of the longitudinal beam main body along the length direction of the longitudinal beam main body, and the top of the inclined strut extends obliquely downwards from the top of the longitudinal beam main body.
In one embodiment, the girder body includes a plurality of i-beams, one end of each of the i-beams along the length direction thereof is disposed on the top of one of the preset foundations, the other end of each of the i-beams along the length direction thereof is disposed on the top of the other preset foundation, and the plurality of i-beams are sequentially arranged along the length direction of the preset foundation;
the diagonal braces comprise a plurality of diagonal brace bodies, the number of the diagonal brace bodies in each diagonal brace is the same as that of the I-shaped steel beams, the diagonal brace bodies are sequentially arranged along the length direction of the preset foundation, and each diagonal brace body is connected with one end, close to the corresponding I-shaped steel beam, of each diagonal brace body.
In one embodiment, the diagonal brace comprises a first support steel plate and a second support steel plate, wherein the cross section of the first support steel plate is in a right triangle shape, the right angle end of the first support steel plate is located on the top of the preset foundation, the right angle end of the first support steel plate is connected with the corresponding web of the I-shaped steel beam, the inclined side of the first support steel plate faces upwards, and the second support steel plate is located on the top of the inclined side of the first support steel plate.
In one embodiment, a plurality of first bolts are arranged at the top of the preset foundation along the length direction of the preset foundation, first connecting holes are formed in two opposite sides of the bottom flange plate of the I-beam, the rod parts of the first bolts extend to the top of the bottom flange plate of the I-beam through the corresponding first connecting holes, first nuts are connected to the rod parts of the first bolts in a threaded mode, and the first nuts are abutted to the top of the bottom flange plate of the I-beam.
In one embodiment, the first supporting steel plate is provided with connecting plates along two sides of the width direction of the first supporting steel plate, the connecting plates extend to the outer sides of webs of the I-shaped steel beams which are arranged adjacently to the connecting plates, the connecting plates are provided with second connecting holes, the webs of the I-shaped steel beams are provided with third connecting holes, the third connecting holes and the second connecting holes are coaxially arranged, the third connecting holes and the second connecting holes are connected together through second bolts, second nuts are screwed on the second bolts, and the second nuts are propped against the webs of the I-shaped steel beams.
The advantages or beneficial effects in the technical scheme at least comprise:
the prefabricated foundation, the preset longitudinal beams and the steel plate layers are all of prefabricated and molded structures, and when the prefabricated bridge is installed, the preset foundation is directly placed on the ground embedded with the oil pipeline, then the preset longitudinal beams are installed on the tops of at least two preset longitudinal beams, and then the steel plate layers are installed on the tops of the preset longitudinal beams, so that the prefabricated bridge can be installed conveniently and quickly, the installation efficiency is high, foundation pits are not required to be excavated, disturbance to undisturbed soil embedded with the oil pipeline can be reduced, in addition, the preset foundation, the preset longitudinal beams and the steel plate layers are connected together in a detachable mode, so that the prefabricated foundation, the preset longitudinal beams and the steel plate layers are not damaged in the disassembling process, the preset foundation, the preset longitudinal beams and the steel plate layers can be reused, the cost is reduced, and in addition, the preset foundation, the preset longitudinal beams and the steel plate layers are arranged in a split mode, so that the prefabricated bridge is convenient to transfer and transport.
The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will become apparent by reference to the drawings and the following detailed description.
Drawings
In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.
FIG. 1 is a top view of an assembled railroad construction bridge spanning an oil pipeline in accordance with the present utility model;
FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a front view of an assembled railroad construction bridge spanning an oil pipeline in accordance with the present utility model;
fig. 5 is a partial enlarged view at B in fig. 4.
Reference numerals
10. Presetting a foundation; 11. a hanging ring; 20. presetting a longitudinal beam; 21. a stringer main body; 211. an I-beam; 22. diagonal bracing; 221. a diagonal brace body; 30. a steel plate layer; 40. a first bolt; 50. a first nut; 60. a connecting plate; 70. a second bolt; 80. and a second nut.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
Referring to fig. 1-5, there is shown an assembled railway construction bridge spanning an oil pipeline according to a preferred embodiment of the present utility model, comprising:
at least two preset foundations 10, wherein the preset foundations 10 are configured on the ground, the preset foundations 10 are configured to extend along the length direction of the oil pipeline, one preset foundation 10 is configured on one side of the oil pipeline along the width direction of the oil pipeline, and the other preset foundation 10 is configured on the other side of the oil pipeline along the width direction of the oil pipeline;
a preset longitudinal beam 20, the preset longitudinal beam 20 being detachably mounted on top of at least two preset foundations 10; and
the steel plate layer 30, the steel plate layer 30 is detachably mounted on the top of the preset longitudinal beam 20, and the steel plate layer 30 covers the top of the preset longitudinal beam 20.
The prefabricated foundation 10, the preset longitudinal beams 20 and the steel plate layers 30 are all of prefabricated and molded structures, when the prefabricated bridge is installed, the preset foundation 10 is directly placed on the ground embedded with an oil pipeline, then the preset longitudinal beams 20 are installed on the tops of at least two preset longitudinal beams 20, and then the steel plate layers 30 are installed on the tops of the preset longitudinal beams 20, so that the prefabricated bridge is convenient to install, high in installation efficiency and free of excavation of foundation pits, disturbance to original soil embedded with the oil pipeline can be reduced, in addition, the preset foundation 10, the preset longitudinal beams 20 and the steel plate layers 30 are connected together in a detachable mode, so that the prefabricated foundation 10, the preset longitudinal beams 20 and the steel plate layers 30 are not damaged in the disassembling process, the preset foundation 10, the preset longitudinal beams 20 and the steel plate layers 30 can be reused, cost is reduced, and in addition, the preset foundation 10, the preset longitudinal beams 20 and the steel plate layers 30 are arranged in a split mode, so that the prefabricated bridge is convenient to transfer and transport.
Referring to fig. 1, in order to facilitate the movement and installation of the preset foundation 10, in one embodiment, the preset foundation 10 is provided with a hanging ring 11, and the hanging ring 11 is used for being connected with a lifting device so as to facilitate the lifting of the preset foundation 10.
Referring to fig. 1, in one embodiment, the number of the hanging rings 11 is two, one hanging ring 11 is arranged on top of one end of the preset foundation 10 along the length direction thereof, and the other hanging ring 11 is arranged on top of the other end of the preset foundation 10 along the length direction thereof, so that the hanging rings 11 positioned on both ends of the preset foundation 10 along the length direction thereof are connected with the hoisting device, and the preset foundation 10 is not easy to shake in the installation process, thereby realizing rapid placement of the preset foundation 10 at the set position, and facilitating further improvement of the installation efficiency.
In one embodiment, the preset foundation 10 is a concrete foundation, and the concrete foundation has a large dead weight, so that the preset foundation 10 can be stably placed on the ground, thereby stably and reliably supporting the preset longitudinal beam 20 and the steel plate layer 30, and meanwhile, the concrete foundation has a low cost, and the cost of the assembled railway construction temporary bridge can be reduced.
In one embodiment, the preset longitudinal beam 20 is a frame structure made of steel, so that the preset longitudinal beam 20 has better structural strength, can stably and reliably support the steel plate layer 30, has lighter weight and lower cost, and is convenient for transferring, transporting and disassembling the preset longitudinal beam 20. Of course, in other embodiments, the preset stringers 20 may also be concrete stringers.
Referring to fig. 1 to 5, in one embodiment, the number of preset bases 10 is two, and the preset stringers 20 include:
the longitudinal beam main body 21, the longitudinal beam main body 21 extends along the horizontal direction, one end of the longitudinal beam main body 21 along the length direction is detachably arranged on the top of one preset foundation 10, and the other end of the longitudinal beam main body 21 along the length direction is detachably arranged on the top of the other preset foundation 10, so that the stable and reliable connection of the preset longitudinal beam 20 and the preset foundation 10 is realized; and
two diagonal braces 22, one diagonal brace 22 locates the one end along its length direction of longeron main part 21, and the other diagonal brace 22 locates the other end along its length direction of longeron main part 21, and two diagonal braces 22 divide and locate the longeron main part 21 along its length direction's both ends, and each diagonal brace 22 links together with longeron main part 21, and the top slant downwardly extending of diagonal brace 22 is followed the top of longeron main part 21 to form the slope, thereby this assembled construction bridge about the convenience construction vehicle.
In one embodiment, the girder main body 21 includes a plurality of i-beams 211, one end of the i-beams 211 along the length direction thereof is detachably mounted on the top of one preset foundation 10, the other end of the i-beams 211 along the length direction thereof is detachably mounted on the top of the other preset foundation 10, and the plurality of i-beams 211 are sequentially arranged along the length direction of the preset foundation 10, that is, the girder main body 21 is an assembled structure formed by splicing the plurality of i-beams 211, so as to facilitate the transfer and transportation of the girder main body 21;
the diagonal braces 22 comprise a plurality of diagonal braces 221, the number of the diagonal braces 221 in each diagonal brace 22 is the same as that of the I-shaped steel beams 211, the diagonal braces 221 are sequentially arranged along the length direction of the preset foundation 10, and one ends, close to each diagonal brace 221, of the corresponding I-shaped steel beam 211 are connected, namely, the diagonal braces 22 are also in an assembled structure, so that the diagonal braces 22 can be more conveniently transferred and transported.
In order to facilitate the disassembly and assembly of each I-beam 211, two adjacent I-beams 211 are arranged at intervals, and in the same way, two adjacent inclined strut bodies 221 are arranged at intervals in order to facilitate the disassembly and assembly of each inclined strut body 221.
More specifically, in one embodiment, the diagonal brace 221 includes a first support steel plate having a right triangle cross-sectional shape, the right angle end of the first support steel plate being located on the top of the preset foundation 10, the right angle end of the first support steel plate being connected to the web of the corresponding i-beam 211, the inclined side of the first support steel plate facing upward, and a second support steel plate being located on the top of the inclined side of the first support steel plate.
Referring to fig. 3 and 5, in one embodiment, the top of the preset foundation 10 is provided with a plurality of first bolts 40 along the length direction thereof, two opposite sides of the bottom flange plate of the i-beam 211 are respectively provided with a first connecting hole, the rod portion of the first bolt 40 extends to the top of the bottom flange plate of the i-beam 211 through the corresponding first connecting hole, the rod portion of the first bolt 40 is screwed with a first nut 50, and the first nut 50 abuts against the top of the bottom flange plate of the i-beam 211, so that the i-beams 211 and the preset foundation 10 are reliably connected together, the structural stability of the girder main body 21 is improved, and the girder main body 21 is convenient to assemble and disassemble.
In one embodiment, the two sides of the first supporting steel plate along the width direction are respectively provided with a connecting plate 60, the connecting plates 60 extend to the outer sides of webs of the I-shaped steel beams 211 which are adjacently arranged, the connecting plates 60 are provided with second connecting holes, the webs of the I-shaped steel beams 211 are provided with third connecting holes, the third connecting holes and the second connecting holes are coaxially arranged, the third connecting holes and the second connecting holes are connected together through second bolts 70, second nuts 80 are screwed on the second bolts 70, the second nuts 80 are abutted against the webs of the I-shaped steel beams 211, so that each diagonal bracing body 221 and the corresponding I-shaped steel beam 211 are reliably connected together, the structural stability of the diagonal bracing 22 is improved, and the disassembly and assembly are convenient.
In one embodiment, the top of the steel plate layer 30 and the preset stringers 20 are spot welded together to provide a secure connection of both the steel plate layer 30 and the preset stringers 20 while also allowing for the detachment of both the steel plate layer 30 and the preset stringers 20. Of course, in other embodiments, both the steel plate layer 30 and the top of the side sill 20 may be bolted.
Specifically, the steel plate layer 30 is spot welded to the top flange plate of a portion of the i-beam 211, and the steel plate layer 30 is spot welded to a portion of the second support plate.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Any process or method description in a flowchart or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process. And the scope of the preferred embodiments of the present application includes additional implementations in which functions may be performed in a substantially simultaneous manner or in an opposite order from that shown or discussed, including in accordance with the functions that are involved.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. All or part of the steps of the methods of the embodiments described above may be performed by a program that, when executed, comprises one or a combination of the steps of the method embodiments, instructs the associated hardware to perform the method.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules described above, if implemented in the form of software functional modules and sold or used as a stand-alone product, may also be stored in a computer-readable storage medium. The storage medium may be a read-only memory, a magnetic or optical disk, or the like.
The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the present application, and these should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. An assembled railway construction bridge spanning an oil pipeline, comprising:
the preset foundations are configured on the ground, the preset foundations are configured to extend along the length direction of the oil pipeline, one preset foundation is configured on one side of the oil pipeline along the width direction of the oil pipeline, and the other preset foundation is configured on the other side of the oil pipeline along the width direction of the oil pipeline;
the preset longitudinal beams are detachably arranged on the tops of at least two preset foundations; and
the steel sheet layer, the steel sheet layer detachable install in on the top of preset longeron, just the steel sheet layer covers the top of preset longeron.
2. The fabricated railway construction bridge spanning an oil pipeline according to claim 1, wherein a hanging ring is arranged on the preset foundation, and the hanging ring is used for being connected with a hoisting device so as to hoist the preset foundation.
3. The fabricated railway construction bridge spanning an oil pipeline according to claim 2, wherein the number of the hanging rings is two, one hanging ring is arranged on the top of one end of the preset foundation along the length direction of the preset foundation, and the other hanging ring is arranged on the top of the other end of the preset foundation along the length direction of the preset foundation.
4. A fabricated railway construction bridge spanning an oil pipeline according to claim 1, wherein the preset foundation is a foundation made of concrete.
5. A fabricated railway construction bridge spanning an oil pipeline as claimed in claim 1, wherein the preset stringers are frame structures made of steel.
6. A fabricated railway construction bridge spanning an oil pipeline as claimed in claim 1, wherein the number of said preset foundations is two, said preset stringers comprising:
the longitudinal beam main body extends along the horizontal direction, one end of the longitudinal beam main body along the length direction of the longitudinal beam main body is detachably arranged on the top of one preset foundation, and the other end of the longitudinal beam main body along the length direction of the longitudinal beam main body is detachably arranged on the top of the other preset foundation; and
and one inclined strut is arranged at one end of the longitudinal beam main body along the length direction of the longitudinal beam main body, the other inclined strut is arranged at the other end of the longitudinal beam main body along the length direction of the longitudinal beam main body, and the top of the inclined strut extends obliquely downwards from the top of the longitudinal beam main body.
7. The fabricated railway construction bridge spanning an oil pipeline according to claim 6, wherein the girder main body comprises a plurality of i-beams, one end of each of the i-beams in a length direction thereof is detachably mounted on a top of one of the preset foundations, the other end of each of the i-beams in a length direction thereof is detachably mounted on a top of the other preset foundation, and the plurality of i-beams are sequentially arranged in a length direction of the preset foundation;
the diagonal braces comprise a plurality of diagonal brace bodies, the number of the diagonal brace bodies in each diagonal brace is the same as that of the I-shaped steel beams, the diagonal brace bodies are sequentially arranged along the length direction of the preset foundation, and each diagonal brace body is connected with one end, close to the corresponding I-shaped steel beam, of each diagonal brace body.
8. The fabricated railway construction bridge spanning an oil pipeline according to claim 7, wherein the diagonal brace comprises a first support steel plate and a second support steel plate, the cross-sectional shape of the first support steel plate is a right triangle, the right angle end of the first support steel plate is located on the top of the preset foundation, the right angle end of the first support steel plate is connected with the web of the corresponding i-beam, the inclined side of the first support steel plate faces upwards, and the second support steel plate is located on the top of the inclined side of the first support steel plate.
9. The fabricated railway construction bridge spanning an oil pipeline according to claim 8, wherein a plurality of first bolts are arranged at the top of the preset foundation along the length direction of the preset foundation, first connecting holes are formed in two opposite sides of the bottom flange plate of the i-beam, the rod portions of the first bolts extend to the top of the bottom flange plate of the i-beam through the corresponding first connecting holes, first nuts are screwed on the rod portions of the first bolts, and the first nuts are propped against the top of the bottom flange plate of the i-beam.
10. The fabricated railway construction bridge crossing over an oil pipeline according to claim 8, wherein the two sides of the first supporting steel plate along the width direction of the first supporting steel plate are respectively provided with a connecting plate, the connecting plates extend to the outer sides of webs of the I-shaped steel beams adjacently arranged with the connecting plates, the connecting plates are provided with second connecting holes, the webs of the I-shaped steel beams are provided with third connecting holes, the third connecting holes and the second connecting holes are coaxially arranged, the third connecting holes and the second connecting holes are connected together through second bolts, second nuts are screwed on the second bolts, and the second nuts are abutted against the webs of the I-shaped steel beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955502.0U CN220538384U (en) | 2023-07-24 | 2023-07-24 | Assembled railway construction temporary bridge crossing oil pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321955502.0U CN220538384U (en) | 2023-07-24 | 2023-07-24 | Assembled railway construction temporary bridge crossing oil pipeline |
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| CN220538384U true CN220538384U (en) | 2024-02-27 |
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| CN202321955502.0U Active CN220538384U (en) | 2023-07-24 | 2023-07-24 | Assembled railway construction temporary bridge crossing oil pipeline |
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- 2023-07-24 CN CN202321955502.0U patent/CN220538384U/en active Active
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