Temporary steel bridge with adjustable height

Abstract

The temporary steel bridge comprises a lower-layer frame and an upper-layer frame, a plurality of sets of supporting frames are fixedly connected between the lower-layer frame and the upper-layer frame and located on the two sides of the upper portion of the lower-layer frame correspondingly, and baffles are fixedly connected to the two sides of the upper-layer frame correspondingly; a plurality of groups of notches are formed in the baffles, and an aisle plate located above the upper-layer frame is arranged between the two groups of baffles; according to the temporary steel bridge with the adjustable height, through cooperation of the lifting assembly and the bottom cushion assembly, the problems that according to a traditional temporary steel bridge, a steel sheet and a main beam are connected into a whole, after the temporary steel bridge is repaired, a water source continues to rise in the temporarily-built place, and the temporary steel bridge is damaged are solved. And the current bridge body cannot be adjusted according to the change of the depth of the water source, so that the current bridge body cannot be continuously used subsequently.

Description

Technical Field

[0001] The invention relates to the technical field of steel temporary bridges, in particular to a height-adjustable steel temporary bridge. Background Art

[0002] Bridges, as important transportation facilities connecting the two sides, play a very important role. As a special type of bridge, steel temporary bridges demonstrate their value in many scenarios with their advantages. Steel temporary bridges are temporary or simple bridges built with steel as the main material. They have a light structure and are quick to build. They can often meet traffic needs in a short time. When natural disasters cause bridge damage, steel temporary bridges can be quickly built to restore traffic and ensure the timely arrival of rescue materials and personnel. In engineering construction, they are also often used as temporary passages to provide convenient passage for construction personnel and materials.

[0003] Currently, temporary steel bridges are constructed from individual steel pieces, each bearing its own weight and requiring close connections. However, traditional temporary steel bridges use steel sheets connected to the main beam. Once the temporary bridge is built, if water levels continue to rise in the temporary construction area, the bridge aisle may be submerged. The current bridge cannot adjust to changing water depths, rendering it unusable. To address this issue, we propose a height-adjustable temporary steel bridge. Summary of the Invention

[0004] The object of the present invention is to provide a height-adjustable steel temporary bridge to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a height-adjustable steel temporary bridge, comprising a lower frame and an upper frame, wherein a plurality of support frames are fixedly connected between the lower frame and the upper frame, and the plurality of support frames are respectively located on both sides above the lower frame, baffles are fixedly connected to both sides of the upper frame, a plurality of notches are provided on the baffles, and an aisle plate located above the upper frame is provided between the two groups of baffles; a lifting assembly, wherein the lifting assembly is arranged between the support frames on both sides and is located below the aisle plate, and comprises a plurality of groups arranged below the aisle plate and respectively located The lifting frames on both sides have tops fixedly connected to the bottom of the aisle plate, and the lifting assembly is used to lift the aisle plate upwards to facilitate the improvement of the overall passing height of the steel temporary bridge; the bottom assembly is arranged on both sides of the bottom of the aisle plate and connected to the support frame, which is used to reinforce and support the lifted aisle plate, solving the problem that the traditional steel temporary bridge adopts steel sheets connected to the main beam as a whole. After the steel temporary bridge is repaired, when the water source in the temporary construction area continues to rise, the bridge aisle will be submerged, and the current bridge body cannot be adjusted according to the changes in the water source depth, resulting in the subsequent inability to continue to use.

[0006] Preferably, the lifting assembly also includes multiple groups of lifting seats arranged above the lower frame and distributed on both sides, the top surface of the lifting seat is Z-shaped, and an inclined surface adapted to the top of the lifting seat is provided on one side of the bottom end of the lifting frame, and multiple groups of the lifting seats are threadedly connected to threaded rods rotatably connected to the support frame, and the threaded rods are rotatably connected to fixed blocks fixedly connected to the lower frame, a lower stop block is fixedly connected to the lowest point of the top surface of the lifting seat, and an upper stop block is fixedly connected to the highest point of the top surface of the lifting seat, and a power mechanism connected to the threaded rods on both sides is provided on the lower frame.

[0007] Preferably, the power mechanism includes a power shaft arranged in the center above the lower frame, the power shaft and the threaded rods on both sides are arranged vertically, and multiple groups of first bevel gears are fixedly connected to the power shaft, each group of first bevel gears are respectively meshed and connected with two groups of second bevel gears fixedly connected to the threaded rods on both sides, one end of the power shaft is provided with a motor, and the output end of the motor is provided with a coupling, and is fixedly connected to the power shaft through the coupling.

[0008] Preferably, a waterproof box rotatably connected to the power shaft is provided on the outside of the electric motor, and a mounting plate fixedly connected to the lower frame is fixedly connected below the waterproof box.

[0009] Preferably, the bottom assembly includes multiple groups of rotating shafts arranged below the upper frame and located on both sides, and a group of rotating shafts are rotatably connected between every two groups of support frames on the same side, and a flip plate is provided on the rotating shaft with one end fixedly connected thereto, and the other end of the flip plate is fixedly connected to a reinforcement seat, and the reinforcement seat is located directly below part of the slot, and the height and width of the reinforcement seat are both smaller than the slot, and a mirror mechanism connected to the power shaft is provided between the corresponding rotating shafts on both sides.

[0010] Preferably, the mirror mechanism includes multiple groups of fixed plates that are respectively arranged between the two groups of support frames on the same side and fixedly connected thereto, a long strip plate is fixedly connected between the fixed plates corresponding to the positions on both sides, a driving shaft is rotatably connected between the multiple groups of long strip plates, a first pulley group is transmission-connected between the power shaft and the driving shaft, a first gear fixedly connected to the driving shaft is provided on each of the long strip plates, two groups of extended shafts are rotatably connected on the long strip plates, the two groups of extended shafts are respectively transmission-connected with a second pulley group between the rotating shafts corresponding to the positions on both sides, and a second gear meshing with the first gear is fixedly connected to the extension shaft.

[0011] Preferably, multiple groups of lifting frames on the same side are fixedly connected with synchronization rods, and the material of the synchronization rods is preferably steel, which is conducive to the synchronous lifting and lowering movement of multiple groups of synchronization rods. At the same time, the material selection of steel is conducive to overall stability.

[0012] Preferably, both sides of the aisle plate are rotatably connected with linkage shafts, and multiple groups of rollers are fixedly connected to the linkage shafts. Multiple groups of rolling grooves compatible with the rollers are provided on the baffles on both sides, which is conducive to smoother lifting and lowering of the aisle plate when adjusting the overall passing height.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention solves the problem that the traditional steel temporary bridge uses steel sheets to be connected to the main beam as a whole through the cooperation of the lifting component and the bottom component. After the steel temporary bridge is repaired, when the water source in the temporary construction area continues to rise, the bridge aisle will be submerged, and the current bridge body cannot be adjusted according to the change in the water source depth, resulting in the subsequent inability to continue to use the problem. When the steel temporary bridge needs to be raised in height as a whole, the lifting component is controlled to operate, and the lifting component then lifts the aisle plate, and the aisle plate slides upward on both sides of the baffle, while the bottom component operates at the same time. After the height of the aisle plate rises, the bottom of the aisle plate is supported to make the whole more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 This is a schematic diagram of the structure of the powered end of the steel temporary bridge of the present invention; Figure 4 for Figure 3 Enlarged view of area A in the middle; Figure 5 This is a schematic diagram of the local structure coordination of the lifting assembly of the present invention; Figure 6 for Figure 5 Enlarged view of area B in the middle; Figure 7 This is a schematic diagram of the local structure of the bottom assembly of the present invention; Figure 8 This is a schematic diagram of the local structure below the aisle plate of the present invention; Figure 9 It is a schematic diagram of the coordination of the aisle plate and baffle structure of the present invention.

[0015] In the figure: 1. Lower frame; 2. Upper frame; 3. Support frame; 4. Baffle; 5. Notch; 6. Aisle plate; 7. Lifting assembly; 8. Lifting frame; 9. Bottom assembly; 10. Lifting seat; 11. Threaded rod; 12. Fixed block; 13. Lower block; 14. Upper block; 15. Power mechanism; 16. Power shaft; 17. First bevel gear; 18. Second bevel gear; 19. Motor; 20. Coupling; 21. Waterproof box; 22. Mounting plate; 23. Rotating shaft; 24. Flip plate; 25. Reinforcement seat; 26. Mirror mechanism; 27. Fixed plate; 28. Long strip plate; 29. Drive shaft; 30. First pulley group; 31. First gear; 32. Extension shaft; 33. Second pulley group; 34. Second gear; 35. Synchronous rod; 36. Linkage shaft; 37. Roller; 38. Rolling groove. DETAILED DESCRIPTION

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant invention and are not intended to limit the invention. It should also be noted that, for ease of description, only portions relevant to the invention are shown in the accompanying drawings.

[0017] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] See also Figure 1-9 The present invention provides a technical solution: a height-adjustable steel temporary bridge, comprising a lower frame 1 and an upper frame 2, wherein a plurality of support frames 3 are fixedly connected between the lower frame 1 and the upper frame 2, and the plurality of support frames 3 are respectively located on both sides above the lower frame 1, and baffles 4 are fixedly connected on both sides of the upper frame 2, and a plurality of notches 5 are provided on the baffles 4, and an aisle plate 6 is provided above the upper frame 2 between the two groups of baffles 4; a lifting assembly 7, which is arranged between the support frames 3 on both sides and located below the aisle plate 6, and comprises a plurality of lifting frames 8 arranged below the aisle plate 6 and respectively located on both sides, and the top of the lifting frame 8 is fixedly connected to the bottom of the aisle plate 6, and the lifting assembly 7 is used to lift the aisle The plate 6 is lifted upward to facilitate the improvement of the overall passing height of the steel temporary bridge; the bottom assembly 9 is arranged on both sides below the aisle plate 6 and connected to the support frame 3, which is used to reinforce and support the lifted aisle plate 6. In order to make the multiple groups of synchronization rods 35 move up and down synchronously, the multiple groups of lifting frames 8 on the same side are fixedly connected with synchronization rods 35, and the material of synchronization rods 35 is preferably steel. In addition, in order to make the lifting and lowering of the aisle plate 6 smoother when adjusting the overall passing height, the aisle plate 6 is rotatably connected with a linkage shaft 36 on both sides, and a plurality of groups of rollers 37 are fixedly connected to the linkage shaft 36, and a plurality of groups of rolling grooves 38 compatible with the rollers 37 are provided on the baffles 4 on both sides.

[0019] like Figures 1-6 As shown, the lifting assembly 7 also includes multiple groups of lifting seats 10 arranged above the lower frame 1 and distributed on both sides. The top surface of the lifting seat 10 is Z-shaped, and an inclined surface adapted to the top of the lifting seat 10 is provided on one side of the bottom end of the lifting frame 8. Multiple groups of lifting seats 10 are threadedly connected to threaded rods 11 rotatably connected to the support frame 3, and the threaded rods 11 are rotatably connected to fixed blocks 12 fixedly connected to the lower frame 1. The threaded rods 11 corresponding to the positions on both sides have the same thread direction to ensure that the two groups of lifting seats 10 move in a mirror image. The lowest point of the top surface of the lifting seat 10 is fixedly connected to a lower stopper 13, and the highest point of the top surface of the lifting seat 10 is fixedly connected to an upper stopper 14. The lower frame 1 is provided with a screw thread connected to the threaded rods 11 on both sides. The connected power mechanism 15 includes a power shaft 16 arranged in the center above the lower frame 1. The power shaft 16 and the threaded rods 11 on both sides are arranged vertically, and multiple groups of first bevel gears 17 are fixedly connected to the power shaft 16. Each group of first bevel gears 17 is respectively engaged with two groups of second bevel gears 18 fixedly connected to the threaded rods 11 on both sides. An electric motor 19 is provided at one end of the power shaft 16, and a coupling 20 is provided at the output end of the motor 19, and is fixedly connected to the power shaft 16 through the coupling 20. A waterproof box 21 rotatably connected to the power shaft 16 is provided on the outside of the motor 19, and a mounting plate 22 fixedly connected to the lower frame 1 is fixedly connected below the waterproof box 21.

[0020] like Figure 2 、 Figure 3 、 Figure 7 as well as Figure 8 As shown, the bottom assembly 9 includes multiple groups of rotating shafts 23 arranged below the upper frame 2 and located on both sides. A group of rotating shafts 23 are rotatably connected between each two groups of support frames 3 on the same side. A flip plate 24 is fixedly connected to the rotating shaft 23 at one end, and a reinforcement seat 25 is fixedly connected to the other end of the flip plate 24. The reinforcement seat 25 is located directly below the partial notch 5, and the height and width of the reinforcement seat 25 are both smaller than the notch 5. A mirror mechanism 26 connected to the power shaft 16 is provided between the corresponding rotating shafts 23 on both sides. The mirror mechanism 26 includes multiple groups of mirror mechanisms 26 respectively arranged between the two groups of support frames 3 on the same side and A fixed plate 27 is fixedly connected to it, and a long plate 28 is fixedly connected between the fixed plates 27 at the corresponding positions on both sides. A driving shaft 29 is rotatably connected between multiple groups of long plates 28. A first pulley group 30 is transmission-connected between the power shaft 16 and the driving shaft 29. The long plates 28 are each provided with a first gear 31 fixedly connected to the driving shaft 29. Two groups of extended shafts 32 are rotatably connected to the long plates 28. The two groups of extended shafts 32 are respectively transmission-connected to the rotating shafts 23 at the corresponding positions on both sides by a second pulley group 33. The extension shafts 32 are each fixedly connected to a second gear 34 meshing with the first gear 31.

[0021] In a specific embodiment, when the steel temporary bridge needs to be raised in height as a whole, the motor 19 in the waterproof box 21 is controlled to operate, and the motor 19 drives the power shaft 16 to rotate through the coupling 20, and the multiple groups of first bevel gears 17 on the power shaft 16 rotate accordingly. At this time, the first bevel gear 17 is simultaneously engaged with the two groups of second bevel gears 18, and each group of first bevel gears 17 simultaneously drives the two groups of second bevel gears 18 to rotate, and each group of second bevel gears 18 drives the connected threaded rod 11 to rotate. When the threaded rod 11 rotates on the fixed block 12, it is connected to the lifting seat 10 through the threaded rod 11, and the threads on the threaded rods 11 corresponding to the two sides have the same direction. At this time, the two groups of mirror-image lifting seats 10 are respectively moved toward the support frames 3 on both sides. The lifting frame 8 moves in the direction of movement, and since the lifting seat 10 is arranged in a Z shape as a whole, and the bottom side of the lifting frame 8 is provided with an inclined surface adapted to the top of the lifting seat 10, the lifting frame 8 slides close to the top surface of the lifting seat 10, thereby causing the overall height of the lifting frame 8 to continue to rise until the lower stopper 13 on the lifting seat 10 contacts the support frame 3. At this time, the lifting frame 8 contacts the upper stopper 14, and the lifting frame 8 reaches the highest point at this time. The lifting frames 8 on both sides are simultaneously raised in position through the connection of the synchronization rod 35, and cooperate to lift the aisle plate 6 at the top upward. At this time, the linkage shafts 36 on both sides of the aisle plate 6 rotate, and the rollers 37 on the linkage shaft 36 rotate in the rolling groove 38 until the aisle plate 6 reaches the highest point of the rolling groove 38; When the power shaft 16 rotates, the power shaft 16 drives the driving shaft 29 to rotate at the same time through the transmission connection of the first pulley group 30. When the driving shaft 29 rotates on the multiple groups of long strips 28, the multiple groups of first gears 31 on the driving shaft 29 follow and rotate, and each group of first gears 31 drives the two groups of second gears 34 to rotate, and the two groups of second gears 34 rotate in opposite directions. The second gears 34 then drive the fixedly connected extension shaft 32 to rotate on the long strip 28. Through the transmission connection of the second pulley group 33, the extension shaft 3 2, thereby driving the rotating shaft 23 to rotate between the support frames 3. When the rotating shaft 23 rotates, the flip plate 24 is driven to flip upward, and the reinforcement seat 25 at the bottom end of the flip plate 24 is simultaneously flipped upward with the rotating shaft 23 as the center. When the aisle plate 6 reaches the highest height, the flip plate 24 drives the reinforcement seat 25 to flip 180 degrees, and then moves the reinforcement seat 25 into the notch 5 of the baffle 4 and is located below the aisle plate 6, supporting the bottom of the aisle plate 6 and strengthening the supporting force of the aisle plate 6. After the aisle plate 6 rises, the overall supporting force is enhanced.

[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 height-adjustable steel temporary bridge, characterized in that: include: A lower frame (1) and an upper frame (2), wherein a plurality of support frames (3) are fixedly connected between the lower frame (1) and the upper frame (2), and the plurality of support frames (3) are respectively located on both sides above the lower frame (1); baffles (4) are fixedly connected to both sides of the upper frame (2), and the baffles (4) are provided with a plurality of notches (5); an aisle plate (6) located above the upper frame (2) is provided between the two groups of baffles (4); A lifting assembly (7), the lifting assembly (7) is arranged between the support frames (3) on both sides and is located below the aisle plate (6), and comprises a plurality of lifting frames (8) arranged below the aisle plate (6) and respectively located on both sides, the top of the lifting frame (8) being fixedly connected to the bottom of the aisle plate (6), and the lifting assembly (7) is used to lift the aisle plate (6) upwards, so as to facilitate raising the overall passing height of the steel temporary bridge; A bottom pad component (9) is provided on both sides below the aisle plate (6) and connected to the support frame (3), and is used to reinforce and support the raised aisle plate (6).

2. The height-adjustable steel temporary bridge according to claim 1, characterized in that: The lifting assembly (7) further includes a plurality of lifting seats (10) arranged above the lower frame (1) and distributed on both sides, the top surface of the lifting seat (10) being in a Z shape, and an inclined surface adapted to the top of the lifting seat (10) being provided on one side of the bottom end of the lifting frame (8), the plurality of lifting seats (10) being threadedly connected to a threaded rod (11) rotatably connected to the support frame (3), the threaded rod (11) being rotatably connected to a fixed block (12) fixedly connected to the lower frame (1), a lower stopper (13) being fixedly connected to the lowest point of the top surface of the lifting seat (10), and an upper stopper (14) being fixedly connected to the highest point of the top surface of the lifting seat (10), and a power mechanism (15) connected to the threaded rods (11) on both sides being provided on the lower frame (1).

3. The height-adjustable steel temporary bridge according to claim 2, characterized in that: The power mechanism (15) includes a power shaft (16) arranged in the center above the lower frame (1), the power shaft (16) and the threaded rods (11) on both sides are arranged vertically, and a plurality of groups of first bevel gears (17) are fixedly connected to the power shaft (16), and each group of the first bevel gears (17) is respectively engaged with two groups of second bevel gears (18) fixedly connected to the threaded rods (11) on both sides. An electric motor (19) is provided at one end of the power shaft (16), and a coupling (20) is provided at the output end of the electric motor (19), and the motor is fixedly connected to the power shaft (16) through the coupling (20).

4. The height-adjustable steel temporary bridge according to claim 3, characterized in that: A waterproof box (21) rotatably connected to the power shaft (16) is provided on the outside of the motor (19), and a mounting plate (22) fixedly connected to the lower frame (1) is fixedly connected below the waterproof box (21).

5. The height-adjustable steel temporary bridge according to claim 4, characterized in that: The bottom pad assembly (9) includes a plurality of groups of rotating shafts (23) arranged below the upper frame (2) and located on both sides. A group of the rotating shafts (23) is rotatably connected between each two groups of the support frames (3) on the same side. The rotating shafts (23) are provided with a flip plate (24) fixedly connected to the rotating shafts (23) at one end. The other end of the flip plate (24) is fixedly connected to a reinforcement seat (25). The reinforcement seat (25) is located directly below part of the notch (5), and the height and width of the reinforcement seat (25) are both smaller than the notch (5). A mirror mechanism (26) connected to the power shaft (16) is provided between the corresponding rotating shafts (23) on both sides.

6. The height-adjustable steel temporary bridge according to claim 5, characterized in that: The mirror mechanism (26) comprises a plurality of fixed plates (27) respectively arranged between two groups of the support frames (3) on the same side and fixedly connected thereto, a long plate (28) is fixedly connected between the fixed plates (27) at corresponding positions on both sides, a driving shaft (29) is rotatably connected between the plurality of long plates (28), a first pulley group (30) is transmission-connected between the power shaft (16) and the driving shaft (29), a first gear (31) fixedly connected to the driving shaft (29) is provided on each of the long plates (28), two groups of extended shafts (32) are rotationally connected to the long plates (28), the two groups of extended shafts (32) are transmission-connected to the rotating shafts (23) corresponding to the positions on both sides by a second pulley group (33), and a second gear (34) meshing with the first gear (31) is fixedly connected to each of the extended shafts (32).

7. The height-adjustable steel temporary bridge according to claim 1, characterized in that: Synchronous rods (35) are fixedly connected between the multiple groups of lifting frames (8) on the same side, and the material of the synchronous rods (35) is preferably steel.

8. The height-adjustable steel temporary bridge according to claim 1, characterized in that: Both sides of the aisle plate (6) are rotatably connected to a linkage shaft (36), and a plurality of rollers (37) are fixedly connected to the linkage shaft (36). The baffles (4) on both sides are provided with a plurality of rolling grooves (38) adapted to the rollers (37).

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