Easily-scoured stratum temporary steel bridge and construction process thereof

Abstract

The temporary steel bridge comprises a bottom frame, multiple sets of supporting frames are installed on the two sides of the bottom frame, a top frame is installed at the top ends of the multiple sets of supporting frames, a steel plate is arranged above the top frame, and guardrails are installed on the two sides of the steel plate; the lifting assembly is arranged below the top frame and matched with the steel plate, the lifting assembly comprises two sets of lifting frames which are arranged below the steel plate and located on the two sides, and a plurality of sets of anti-skid plates which are in sliding connection with the steel plate are fixedly connected to the upper portions of the two sets of lifting frames. Through operation of the lifting assembly and the cleaning assembly, the problems that passing is inconvenient due to the fact that a stratum is wet and slippery originally, constructors can weld anti-skid steel bars on laid steel plates, actual use is facilitated, but after the steel plates are used for a period of time, follow-up washing is inconvenient due to the existence of the anti-skid steel bars, and the construction cost is lowered are solved. And impurities and sludge cannot be cleaned thoroughly.

Description

Technical Field

[0001] This invention relates to the field of steel temporary bridge technology, specifically to a steel temporary bridge for easily eroded strata and its construction process. Background Technology

[0002] Bridges play a vital role as important transportation facilities connecting two banks. Steel temporary bridges, as a special type of bridge, demonstrate their value in many scenarios due to their advantages. Steel temporary bridges are temporary or simple bridges built primarily of steel. They are lightweight and quick to construct, often meeting traffic needs in a short time. In the event of bridge damage caused by natural disasters, steel temporary bridges can be quickly erected to restore traffic and ensure the timely arrival of relief supplies and personnel. In engineering construction, they are also often used as temporary passages to provide convenient passage for construction workers and materials.

[0003] Currently, temporary steel bridges are constructed from individual steel sections, each bearing weight and tightly connected to form a stable whole. Before being put into use, anti-slip steel strips are welded onto the steel plates to prevent slippery surfaces from hindering passage. However, after a period of use, the presence of these anti-slip strips makes subsequent rinsing difficult, and the removal of impurities and sludge becomes incomplete. Therefore, we propose a temporary steel bridge for easily eroded ground and its construction process. Summary of the Invention

[0004] The purpose of this invention is to provide a temporary steel bridge for easily eroded strata and its construction process, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a temporary steel bridge for easily eroded strata, comprising a base frame, multiple sets of support frames installed on both sides of the base frame, a top frame installed on the top of the multiple sets of support frames, a steel plate installed above the top frame, and guardrails installed on both sides of the steel plate; a lifting assembly, the lifting assembly being disposed below the top frame and cooperating with the steel plate, comprising two sets of lifting frames respectively disposed below the steel plate and located on both sides, multiple sets of anti-slip plates slidably connected to the top of the two sets of lifting frames, the lifting assembly being used to control the multiple sets of anti-slip plates to rise and fall on the steel plate; and a cleaning assembly, the cleaning assembly being disposed below the steel plate and connected to the multiple sets of anti-slip plates, comprising multiple sets of scraping blocks respectively disposed on both sides of the multiple sets of anti-slip plates and in contact with them, the cleaning assembly being used to scrape and clean the anti-slip plates after they descend.

[0006] Preferably, the lifting assembly includes four sets of lifting plates respectively disposed on two sets of lifting frames. The two sets of lifting plates on each set of lifting frames are arranged in a mirror image, and each set of lifting plates has a downward inclined surface at one end near the center. Four sets of extrusion plates adapted to the four sets of lifting plates are disposed below the lifting frames. A bending frame fixedly connected to the support frames on both sides is disposed below the top frame. The bending frame is used to support the lifting plates and extrusion plates. An upward inclined surface is opened at one end of the extrusion plate near the lifting plate. A limit strip is fixedly connected to the top surface of the extrusion plate. Limit grooves adapted to the limit strips are opened on the bottom surfaces of the lifting frames and the lifting plates. A power mechanism connected to the four sets of extrusion plates is disposed below the top frame.

[0007] Preferably, the power mechanism includes a fixed base disposed below and fixedly connected to the top frame, a power shaft rotatably connected to the fixed base, threaded grooves respectively located on both sides of the fixed base and mirror-arranged on the power shaft, and threaded sleeves are threadedly connected to the two sets of threaded grooves respectively, and a movable frame is fixedly connected to the threaded sleeves. The movable frames on both sides of the fixed base are fixedly connected to the bottom ends of the two sets of extrusion plates respectively, and a first motor installed at the bottom end of the top frame is fixedly connected to one end of the power shaft.

[0008] Preferably, the cleaning component includes a support frame disposed between and fixedly connected to the two support frames. A rotating shaft is rotatably connected to the support frame. Both ends of the rotating shaft are provided with reciprocating threads, and two sets of threaded blocks are threadedly connected to the two sets of reciprocating threads. Multiple sets of fixing rods fixedly connected to the support frame are slidably connected to the two sets of threaded blocks. Two sets of mirror-arranged translation frames are fixedly connected to the top surfaces of the threaded blocks. The translation frames are fixedly connected to the multiple sets of scraping blocks. A driving component disposed on the support frame is connected to the rotating shaft.

[0009] Preferably, the driving component includes a second motor disposed on and fixedly connected to the support frame, the output end of the second motor being fixedly connected to a drive shaft rotatably connected to the support frame, a first gear being fixedly connected to the drive shaft, and the first gear meshing with a second gear fixedly connected to the rotating shaft.

[0010] Preferably, the scraping block has scraping strips on the side near the anti-slip plate.

[0011] A construction process for a temporary steel bridge in easily eroded strata includes the following steps: S1. To ensure the overall stability of the steel temporary bridge, select suitable steel materials and process various steel materials to the required state; S2. Conduct on-site surveying and planning, then drive the steel pipe piles into the riverbed one by one using a vibratory hammer, and install the base frame on the steel pipe piles. S3. Pre-assemble the Bailey trusses into groups to form support frames, and install the support frames one by one on the base frame. Then weld the top frame onto the support frames. S4. Install the lifting and cleaning components one by one at the bottom of the top frame, and lay the bridge panel on the top of the top frame to cooperate with the lifting and cleaning components. Finally, install the railings on both sides of the bridge panel.

[0012] Compared with the prior art, the present invention has the following beneficial effects: This invention solves the problem of slippery ground causing inconvenience during passage. Previously, construction workers would weld anti-slip steel strips onto the laid steel plates for ease of use, but after a period of use, the presence of these anti-slip strips made subsequent rinsing difficult and the removal of impurities and sludge incomplete. After using the temporary steel bridge, the lifting component is activated to move the anti-slip plate downwards until its top is flush with the steel plate. Then, the cleaning component operates below the top frame to scrape and clean the lowered anti-slip plate. During operation, the entire system raises the anti-slip plate, enhancing the anti-slip function when using the temporary steel bridge. Attached Figure Description

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure below the top frame of the present invention; Figure 3 for Figure 2 Enlarged view of region A in the middle; Figure 4 for Figure 2 Enlarged view of region B in the middle; Figure 5 This is a schematic diagram of part of the structure of the present invention from another perspective; Figure 6 This is a schematic diagram of the lifting component structure of the present invention; Figure 7 This is a schematic diagram of the structure below the lifting plate of the present invention; Figure 8 This is a schematic diagram of the structure above the extrusion plate of the present invention. Figure 9 This is a schematic diagram of the structure below the steel plate of the present invention. Figure 10 This is a schematic diagram of the cleaning component structure of the present invention; Figure 11 for Figure 10 Enlarged view of region C; Figure 12This is a schematic diagram showing the interaction between the cleaning component and the anti-slip plate structure of the present invention.

[0014] In the diagram: 1. Base frame; 2. Support frame; 3. Top frame; 4. Steel plate; 5. Guardrail; 6. Lifting assembly; 7. Lifting frame; 8. Anti-slip plate; 9. Cleaning assembly; 10. Scratching block; 11. Lifting plate; 12. Extrusion plate; 13. Bending frame; 14. Limiting strip; 15. Limiting groove; 16. Power mechanism; 17. Fixed seat; 18. Power shaft; 19. Threaded groove; 20. Threaded sleeve; 21. Moving frame; 22. First motor; 23. Support frame; 24. Rotating shaft; 25. Reciprocating thread; 26. Threaded block; 27. Fixed rod; 28. Translation frame; 29. ​​Drive component; 30. Second motor; 31. Drive shaft; 32. First gear; 33. Second gear. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] Please see Figure 1-12 This invention provides a technical solution: a temporary steel bridge for easily eroded strata and its construction process, comprising a base frame 1, multiple sets of support frames 2 installed on both sides of the base frame 1, a top frame 3 installed on the top of the multiple sets of support frames 2, a steel plate 4 installed above the top frame 3, and guardrails 5 installed on both sides of the steel plate 4; a lifting assembly 6, which is located below the top frame 3 and cooperates with the steel plate 4, and includes two sets of lifting frames 7 respectively located below the steel plate 4 and on both sides, with multiple sets of anti-slip plates 8 fixedly connected above the two sets of lifting frames 7 and slidably connected to the steel plate 4, the lifting assembly 6 being used to control the lifting and lowering of the multiple sets of anti-slip plates 8 on the steel plate 4; and a cleaning assembly 9, which is located below the steel plate 4 and connected to the multiple sets of anti-slip plates 8, and includes multiple sets of scraping blocks 10 respectively located on both sides of the multiple sets of anti-slip plates 8 and in contact with them, the cleaning assembly 9 being used to scrape and clean the anti-slip plates 8 after they are lowered, wherein, in order to enhance the cleaning force on the anti-slip plates 8, the scraping blocks 10 are provided with scraping vertical strips on the side close to the anti-slip plates 8.

[0018] like Figures 1-9As shown, the lifting assembly 6 includes four sets of lifting plates 11 respectively mounted on two sets of lifting frames 7. The two sets of lifting plates 11 on each set of lifting frames 7 are mirror images of each other, and each set of lifting plates 11 has a downward-facing inclined surface near the center. Below the lifting frames 7, there are four sets of pressing plates 12 that are adapted to the four sets of lifting plates 11 respectively. Below the top frame 3, there is a bending frame 13 fixedly connected to the two side support frames 2. The bending frame 13 is used to support the lifting plates 11 and the pressing plates 12. The pressing plate 12 has an upward-facing inclined surface near the lifting plate 11. The top surface of the pressing plate 12 is fixedly connected to a limit strip 14. The bottom surfaces of the lifting frames 7 and the lifting plates 11 are both provided with... The limiting groove 15 is adapted to the limiting strip 14. A power mechanism 16 connected to four sets of extrusion plates 12 is provided below the top frame 3. The power mechanism 16 includes a fixed seat 17 located below the top frame 3 and fixedly connected to it. A power shaft 18 is rotatably connected to the fixed seat 17. Threaded grooves 19 are opened on the power shaft 18 and are mirrored on both sides of the fixed seat 17. Threaded sleeves 20 are threadedly connected to the two sets of threaded grooves 19. Moving frames 21 are fixedly connected to the threaded sleeves 20. The moving frames 21 on both sides of the fixed seat 17 are fixedly connected to the bottom ends of the two sets of extrusion plates 12. A first motor 22 installed at the bottom end of the top frame 3 is fixedly connected to one end of the power shaft 18.

[0019] like Figures 2-4 as well as Figures 10-11 As shown, the cleaning component 9 includes a support frame 23 disposed between and fixedly connected to the two side support frames 2. A rotating shaft 24 is rotatably connected to the support frame 23. Both ends of the rotating shaft 24 are provided with reciprocating threads 25, and two sets of threaded blocks 26 are threadedly connected through the two sets of reciprocating threads 25. Both sets of threaded blocks 26 are slidably connected to multiple sets of fixing rods 27 fixedly connected to the support frame 23. Two sets of mirror-arranged translation frames 28 are fixedly connected to the top surfaces of the threaded blocks 26. The translation frames 28 are fixedly connected to multiple sets of scraping blocks 10. The rotating shaft 24 is connected to a drive component 29 disposed on the support frame 23. The drive component 29 includes a second motor 30 disposed on and fixedly connected to the support frame 23. The output end of the second motor 30 is fixedly connected to a drive shaft 31 rotatably connected to the support frame 23. A first gear 32 is fixedly connected to the drive shaft 31. The first gear 32 meshes with a second gear 33 fixedly connected to the rotating shaft 24.

[0020] A construction process for a temporary steel bridge in easily eroded strata includes the following steps: S1. To ensure the overall stability of the steel temporary bridge, select suitable steel materials and process various steel materials to the required state; S2. Conduct on-site measurement and planning, then drive the steel pipe piles into the riverbed one by one using a vibratory hammer, and install the base frame 1 on the steel pipe piles. S3. Pre-assemble the Bailey truss into groups to form support frames 2, and install the support frames 2 one by one on the base frame 1. Then weld the top frame 3 onto the support frames 2. S4. Install the lifting assembly 6 and the cleaning assembly 9 at the bottom of the top frame 3, and lay the bridge panel on the top of the top frame 3 to cooperate with the lifting assembly 6 and the cleaning assembly 9. Finally, install the railings on both sides of the bridge panel.

[0021] In a specific implementation, after the temporary steel bridge is used, the surface of its steel plate 4 needs to be flushed and cleaned. First, the first motor 22 is operated, which in turn drives the power shaft 18 to rotate. When the power shaft 18 rotates, it is connected to the threaded sleeve 20 through the threaded groove 19. The threaded sleeves 20 on both sides of the fixed seat 17 move towards the fixed seat 17 at the same time. The threaded sleeves 20 then drive the moving frame 21 to move. The two ends of the moving frame 21 simultaneously drive the fixedly connected pressing plate 12 to move. The pressing plate 12 moves below the lifting plate 11 at this time, and the limiting strip 14 at the top of the pressing plate 12 slides in the limiting groove 15 until the inclined surface at the end of the pressing plate 12 contacts the inclined surface at the end of the lifting plate 11, and the inclined surfaces slide against each other. At this time, the height of the lifting plate 11 gradually decreases, and the pressing plate 12 moves from below the lifting plate 11 to be flush with the height of the lifting plate 11. Figure 6 In the state shown, the limiting strip 14 on the extrusion plate 12 moves from the limiting groove 15 below the lifting plate 11 to the limiting groove 15 below the lifting frame 7. At this time, the bending frame 13 supports both the lifting plate 11 and the extrusion plate 12. When the height of the lifting frame 7 decreases, the multiple anti-slip plates 8 on the lifting frame 7 decrease simultaneously. When the extrusion plate 12 and the lifting plate 11 are at the same height on the bending frame 13, the top of the anti-slip plate 8 is at the same height as the top of the steel plate 4, making the steel temporary bridge surface smooth and easy for workers to wash. Although the anti-slip plate 8 has been lowered to facilitate washing of the steel temporary bridge surface, it has not been cleaned after use. At this time, the second motor 30 on the control support frame 23 is activated, which drives the drive shaft 31 to rotate. The first gear 32 on the drive shaft 31 rotates accordingly. Through the meshing connection between the first gear 32 and the second gear 33, the second gear 33 drives the rotating shaft 24 to rotate. Threaded blocks 26 are threadedly connected to two sets of reciprocating threads 25 on the rotating shaft 24. When the rotating shaft 24 rotates, the two sets of threaded blocks 26 move in opposite directions. Driven by the rotating shaft 24, the threaded blocks 26 cooperate with... Sliding on the fixed rod 27, the two sets of mirror-mounted translation frames 28 on the threaded block 26 move accordingly. The multiple sets of scraping blocks 10 on the translation frames 28 move back and forth simultaneously, continuously scraping the sides of the anti-slip plate 8 after it has descended to the lower position, thereby cleaning the anti-slip plate 8. If it needs to be put into use again before the entire steel temporary bridge is dismantled, the first motor 22 is reversed, which moves the extrusion plate 12 to both ends of the top frame 3. The two sets of inclined surfaces cooperate again, and the extrusion plate 12 gradually lifts the lifting plate 11. The multiple sets of lifting plates 11 cooperate to lift the two sets of lifting frames 7, and finally make the anti-slip plate 8 extend from the steel plate 4, which enhances the anti-slip function when using the steel temporary bridge.

[0022] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0023] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A temporary steel bridge for easily eroded strata, characterized in that, include: The base frame (1) has multiple sets of support frames (2) installed on both sides, and a top frame (3) is installed on the top of the multiple sets of support frames (2). A steel plate (4) is installed on the top frame (3), and guardrails (5) are installed on both sides of the steel plate (4). The lifting assembly (6) is located below the top frame (3) and cooperates with the steel plate (4). It includes two sets of lifting frames (7) respectively located below the steel plate (4) and on both sides. Multiple sets of anti-slip plates (8) that are slidably connected to the steel plate (4) are fixedly connected above the two sets of lifting frames (7). The lifting assembly (6) is used to control the multiple sets of anti-slip plates (8) to lift and lower on the steel plate (4). Cleaning component (9) is located below the steel plate (4) and connected to multiple sets of anti-slip plates (8). It includes multiple sets of scraping blocks (10) respectively located on both sides of the multiple sets of anti-slip plates (8) and attached to them. The cleaning component (9) is used to scrape and clean the anti-slip plates (8) after they are lowered.

2. A temporary steel bridge for easily eroded strata according to claim 1, characterized in that, The lifting assembly (6) includes four sets of lifting plates (11) respectively disposed on two sets of lifting frames (7). The two sets of lifting plates (11) on each set of lifting frames (7) are arranged in a mirror image, and each set of lifting plates (11) has a downward inclined surface at one end near the center. Four sets of extrusion plates (12) are disposed below the lifting frame (7) respectively adapted to the four sets of lifting plates (11). Bend frames (13) are disposed below the top frame (3) and are fixedly connected to the support frames (2) on both sides. The bending frame (13) is used to support the lifting plate (11) and the extrusion plate (12). The extrusion plate (12) has an upward inclined surface at one end near the lifting plate (11). The top surface of the extrusion plate (12) is fixedly connected to a limit strip (14). The lifting frame (7) and the bottom surface of the lifting plate (11) are both provided with a limit groove (15) that matches the limit strip (14). The top frame (3) is provided with a power mechanism (16) connected to the four sets of extrusion plates (12) below it.

3. A temporary steel bridge for easily eroded strata according to claim 2, characterized in that, The power mechanism (16) includes a fixed seat (17) located below and fixedly connected to the top frame (3). The fixed seat (17) is rotatably connected to a power shaft (18). The power shaft (18) has threaded grooves (19) located on both sides of the fixed seat (17) and mirrored. Threaded sleeves (20) are threadedly connected to the two sets of threaded grooves (19). The threaded sleeves (20) are fixedly connected to a movable frame (21). The movable frames (21) on both sides of the fixed seat (17) are fixedly connected to the bottom ends of the two sets of extrusion plates (12). One end of the power shaft (18) is fixedly connected to a first motor (22) installed at the bottom end of the top frame (3).

4. A temporary steel bridge for easily eroded strata according to claim 3, characterized in that, The cleaning component (9) includes a support frame (23) disposed between and fixedly connected to the support frames (2) on both sides. A rotating shaft (24) is rotatably connected to the support frame (23). Both ends of the rotating shaft (24) are provided with reciprocating threads (25), and two sets of threaded blocks (26) are threadedly connected through the two sets of reciprocating threads (25). Both sets of threaded blocks (26) are slidably connected with multiple sets of fixing rods (27) fixedly connected to the support frame (23). Two sets of mirror-arranged translation frames (28) are fixedly connected to the top surfaces of the threaded blocks (26). The translation frames (28) are fixedly connected to multiple sets of scraping blocks (10). The rotating shaft (24) is connected to a driving component (29) disposed on the support frame (23).

5. A temporary steel bridge for easily eroded strata according to claim 4, characterized in that, The drive unit (29) includes a second motor (30) disposed on and fixedly connected to the support frame (23). The output end of the second motor (30) is fixedly connected to a drive shaft (31) rotatably connected to the support frame (23). A first gear (32) is fixedly connected to the drive shaft (31). The first gear (32) meshes with a second gear (33) fixedly connected to the rotating shaft (24).

6. A temporary steel bridge for easily eroded strata according to claim 1, characterized in that, The scraping block (10) has scraping strips on the side near the anti-slip plate (8).

7. The construction process for a temporary steel bridge in easily eroded strata according to any one of claims 1-6, characterized in that, Includes the following steps: S1. To ensure the overall stability of the steel temporary bridge, select suitable steel materials and process various steel materials to the required state; S2. Conduct on-site measurement and planning, then drive the steel pipe piles, use a vibratory hammer to drive the steel pipe piles into the riverbed one by one, and install the base frame (1) on the steel pipe piles; S3. The Bailey truss is pre-assembled into a group to form a support frame (2), and the support frames (2) are installed one by one on the base frame (1). Then the top frame (3) is welded onto the support frame (2). S4. Install the lifting assembly (6) and cleaning assembly (9) at the bottom of the top frame (3) step by step, and lay the bridge panel on the top of the top frame (3) to cooperate with the lifting assembly (6) and cleaning assembly (9). Finally, install the railings on both sides of the bridge panel.

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