Scaffolding for arch bridge ribs

Abstract

This invention discloses scaffolding for arch ribs of arch bridges, relating to the field of scaffolding technology. The invention includes four scaffolding poles and two frame plates. Two limiting holes are provided at one end of each scaffolding pole. Two connecting sleeves are provided on the lower surface of each frame plate. One end of each scaffolding pole is in movable contact with the inner wall of the connecting sleeve. U-shaped sleeves are provided on both sides of each frame plate. The surface of the connecting sleeves is provided with a disassembly and assembly mechanism for assembling and disassembling the scaffolding poles. A fixing mechanism is provided inside the U-shaped sleeve. By rotating a lead screw, the lead screw drives a second slider to move horizontally along the inner wall of a second sliding groove. The second slider moves the scaffolding poles horizontally through the connecting sleeves, thus facilitating the horizontal displacement of the scaffolding. This allows construction workers to stand on the scaffolding and perform construction work at different locations on the two arch ribs of the arch bridge. Simultaneously, it effectively reduces the amount of scaffolding used during construction and effectively reduces the time required to erect the scaffolding.

Description

Technical Field

[0001] This invention relates to the field of scaffolding technology, specifically to scaffolding for arch bridge ribs. Background Technology

[0002] Arch rib: The arch rib is the skeleton of the main arch ring of an arch bridge. During the installation of the arch wave, the arch rib bears its own weight, lateral connecting components, the arch wave itself, and corresponding construction loads. The design of the arch rib should not only meet the strength and stability requirements during the hoisting stage, but also the strength requirements of the cross-section under loads at each stage of the assembly process. Existing scaffolding used for the construction of arch ribs in arch bridges has the following problems:

[0003] Currently, existing technologies for constructing arch bridge ribs mostly involve erecting scaffolding at different heights below the two arch bridge ribs. Due to the long length of the arch bridge ribs, the amount of scaffolding required during construction is large, resulting in high scaffolding costs and a significant amount of construction time. To address these issues, the inventors have proposed a scaffolding system for arch bridge ribs to solve these problems. Summary of the Invention

[0004] In order to solve the problems of large amount of scaffolding to be erected and the time spent on scaffolding during construction, the purpose of this invention is to provide scaffolding for the arch ribs of arch bridges.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: scaffolding for arch ribs of arch bridges, comprising four scaffolding poles and two frame plates. Two limiting holes are provided at one end of each scaffolding pole. Two connecting sleeves are provided on the lower surface of each of the two frame plates. One end of each scaffolding pole is in movable contact with the inner wall of the connecting sleeve. U-shaped sleeves are provided on both sides of each of the two frame plates. A disassembly and assembly mechanism for assembling and disassembling the scaffolding poles is provided on the surface of each connecting sleeve. A fixing mechanism is provided inside each U-shaped sleeve. An angle adjustment mechanism is provided between each frame plate and the U-shaped sleeve. A moving mechanism for moving the scaffolding poles is provided on the lower surface of each of the two frame plates.

[0006] Preferably, the disassembly and assembly mechanism includes an installation sleeve, one end of which is fixedly connected to the inner wall of the connecting sleeve. The installation sleeve has a movable disk inside, and two limiting rods are fixedly installed on one side of the movable disk. The end of each limiting rod away from the movable disk is movably inserted into the inner wall of a limiting hole. Two guide grooves are formed on the inner wall of the installation sleeve, and guide blocks are slidably connected to the inner walls of both guide grooves. One side of two adjacent guide blocks is fixedly connected to the outer wall of the movable disk. A threaded rod is threadedly rotatably installed on the end of the installation sleeve away from the connecting sleeve. The side of the movable disk away from the limiting rod is rotatably connected to one end of the threaded rod. A first handle is fixedly installed on the end of the threaded rod away from the movable disk.

[0007] Preferably, the fixing mechanism includes an arc-shaped fixing plate, an arc-shaped elastic pad is fixedly installed on one side of the arc-shaped fixing plate, two insert rods are fixedly installed on the side of the arc-shaped elastic pad away from the arc-shaped fixing plate, a first sliding groove is formed on the inner wall of the U-shaped sleeve, two first sliders are slidably connected to the inner wall of the first sliding groove, one side of one first slider and one side of the arc-shaped fixing plate are fixedly connected, a double-ended screw is rotatably installed on one side of the U-shaped sleeve, the double-ended screw passes through the first sliding groove and is threadedly rotatably connected to the two first sliders, and a second handle is fixedly installed at one end of the double-ended screw.

[0008] Preferably, the angle adjustment mechanism includes four rotating shafts. One end of each rotating shaft is fixedly connected to one side of the U-shaped sleeve. A worm gear is fixedly installed at the end of the rotating shaft away from the U-shaped sleeve. Two first slots are opened on the upper surfaces of the two frame plates. The end of the rotating shaft near the worm gear is rotatably connected to the inner wall of the first slot. A worm is rotatably installed on the inner wall of the first slot. The worm and the worm gear are meshed. A third handle is fixedly installed at the end of the worm away from the first slot.

[0009] Preferably, the moving mechanism includes four second sliders. One end of a connecting sleeve is fixedly connected to the lower surface of a second slider. The lower surfaces of both frame plates are provided with second sliding grooves. The inner walls of two adjacent second sliders and a second sliding groove are slidably connected. The upper surfaces of both frame plates are provided with second slots. Lead screws are rotatably mounted on the inner walls of both second slots. One lead screw passes through a second sliding groove and is threadedly rotatably connected to two adjacent second sliders. A first bevel gear is fixedly mounted at one end of each lead screw near the second slot. A rotating rod is rotatably mounted between the two second slots. Second bevel gears are fixedly mounted at both ends of the rotating rod. One second bevel gear and a first bevel gear are meshed together. A servo motor is fixedly mounted on one side of one frame plate. The drive output end of the servo motor is fixedly connected to one end of the rotating rod. An L-shaped fixing rod is fixedly mounted on the outer wall of the servo motor. The end of the L-shaped fixing rod away from the servo motor is fixedly connected to one side of a frame plate.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0011] 1. By fitting the upper end of the scaffold pole into the connecting sleeve, and then rotating the threaded rod, the threaded rod causes the moving plate to move horizontally, and the moving plate causes the limiting rod to move horizontally synchronously, so that the limiting rod is horizontally inserted into the limiting hole, thus conveniently realizing the fixed connection between the scaffold pole and the frame plate, thereby effectively improving the convenience of using scaffolds during the construction of the arch rib of the arch bridge.

[0012] 2. By hoisting the frame plate between the two arch ribs of the arch bridge and fitting the U-shaped sleeve onto the inner side of the arch rib, the worm gear is rotated, which drives the worm wheel to rotate. The worm wheel then rotates the shaft, which in turn rotates the U-shaped sleeve. This allows the angles of the U-shaped sleeve, the arc-shaped fixing plate, and the arc-shaped elastic pad to be adapted to the arc surface of the arch rib, thus facilitating the fixing of the U-shaped sleeve at different locations on the arch rib.

[0013] 3. By driving the two first sliders to slide towards each other, the two first sliders cause the two arc-shaped fixed plates and the two arc-shaped elastic pads to move towards each other, so that the inner walls of the two arc-shaped elastic pads and the upper and lower surfaces of the arch rib of the arch bridge are tightly fitted, and the insertion rod is vertically inserted into the insertion holes on the upper and lower surfaces of the arch rib of the arch bridge, thus facilitating the fixed installation of the scaffolding and effectively improving the convenience of the construction of the arch rib of the arch bridge.

[0014] 4. By rotating the lead screw, the lead screw drives the second slider to move horizontally along the inner wall of the second slide groove. The second slider moves the scaffolding pole horizontally through the connecting sleeve, thus facilitating the horizontal displacement of the scaffolding. This makes it easier for construction workers to stand on the scaffolding to carry out construction work at different positions of the two arch ribs. At the same time, it effectively reduces the amount of scaffolding used during construction and effectively reduces the time spent setting up scaffolding. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram showing the connection between the scaffolding poles, frame plates, and U-shaped sleeves of the present invention.

[0017] Figure 2 This is a schematic diagram showing the separation of the scaffolding pole and the connecting sleeve according to the present invention.

[0018] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of part A in the diagram.

[0019] Figure 4 This is a cross-sectional structural diagram of the connecting sleeve and mounting sleeve of the present invention.

[0020] Figure 5 This is a cross-sectional structural diagram of the frame plate of the present invention.

[0021] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of part B in the diagram.

[0022] Figure 7 For the present invention Figure 5 Enlarged schematic diagram of part C in the diagram.

[0023] Figure 8 This is a schematic diagram showing the connection between the fixing mechanism, the U-shaped sleeve, and the angle adjustment mechanism of the present invention.

[0024] In the diagram: 1. Scaffolding pole; 11. Limiting hole; 2. Frame plate; 21. Connecting sleeve; 22. U-shaped sleeve; 3. Assembly / disassembly mechanism; 31. Installation sleeve; 32. Moving plate; 33. Limiting rod; 34. Guide groove; 35. Guide block; 36. Threaded rod; 37. First handle; 4. Fixing mechanism; 41. Arc-shaped fixing plate; 42. Arc-shaped elastic pad; 43. Insert rod; 44. First sliding groove; 45. First slider; 46. Double-ended screw; 47. Second handle; 5. Angle adjustment mechanism; 51. Rotating shaft; 52. Worm gear; 53. First slot; 54. Worm; 55. Third handle; 6. Moving mechanism; 61. Second slider; 62. Second sliding groove; 63. Second slot; 64. Lead screw; 65. First bevel gear; 66. Rotating rod; 67. Second bevel gear; 68. Servo motor; 69. L-shaped fixing rod. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: Figure 1-8 As shown, the present invention provides a scaffold for arch ribs of arch bridges, including four scaffold poles 1 and two frame plates 2. The lower surface of each of the two frame plates 2 is provided with two connecting sleeves 21. One end of the scaffold pole 1 is in movable contact with the inner wall of the connecting sleeve 21. Both sides of the two frame plates 2 are provided with U-shaped sleeves 22. The surface of the connecting sleeve 21 is provided with a disassembly and assembly mechanism 3 for disassembling and assembling the scaffold pole 1. The U-shaped sleeve 22 is provided with a fixing mechanism 4 inside. An angle adjustment mechanism 5 is provided between the frame plate 2 and the U-shaped sleeve 22. The lower surface of the two frame plates 2 is provided with a moving mechanism 6 for moving the scaffold pole 1.

[0027] By adopting the above technical solution, by setting up the disassembly and assembly mechanism 3, the upper end of the scaffold pole 1 can be easily fixed inside the connecting sleeve 21. By setting up the fixing mechanism 4, the fixing mechanism 4 can easily fix the U-shaped sleeve 22 to the arch rib of the arch bridge. By setting up the angle adjustment mechanism 5, the angle adjustment mechanism 5 can adjust the angle of the fixing mechanism 4 through the U-shaped sleeve 22 to adapt to the arc surface of the arch rib of the arch bridge. By setting up the moving mechanism 6, the moving mechanism 6 can make the scaffold pole 1 move horizontally through the connecting sleeve 21.

[0028] Two limiting holes 11 are provided at one end of the scaffolding pole 1.

[0029] By adopting the above technical solution, by opening a limiting hole 11 at the upper end of the scaffolding pole 1, it is convenient to fix the scaffolding pole 1 in the future.

[0030] The disassembly and assembly mechanism 3 includes an installation sleeve 31. One end of the installation sleeve 31 is fixedly connected to the inner wall of the connecting sleeve 21. The interior of the installation sleeve 31 is provided with a movable disk 32. Two limiting rods 33 are fixedly installed on one side of the movable disk 32. The end of the limiting rod 33 away from the movable disk 32 is movably inserted into the inner wall of the limiting hole 11.

[0031] By adopting the above technical solution, the moving disk 32 is driven to move horizontally, and the moving disk 32 causes the limiting rod 33 to move horizontally. When the limiting rod 33 is horizontally inserted into the limiting hole 11, the limiting rod 33 fixes the scaffolding rod 1 in the connecting sleeve 21.

[0032] The inner wall of the mounting sleeve 31 has two guide grooves 34, and the inner walls of the two guide grooves 34 are slidably connected to guide blocks 35. One side of two adjacent guide blocks 35 is fixedly connected to the outer wall of a movable disk 32.

[0033] By adopting the above technical solution, by setting a guide groove 34 and a guide block 35 in the mounting sleeve 31, the guide block 35 guides the moving disk 32, so that the moving disk 32 moves in a horizontal direction.

[0034] A threaded rod 36 is rotatably mounted on the end of the mounting sleeve 31 away from the connecting sleeve 21. The side of the movable disc 32 away from the limiting rod 33 is rotatably connected to one end of the threaded rod 36. A first handle 37 is fixedly mounted on the end of the threaded rod 36 away from the movable disc 32.

[0035] By adopting the above technical solution, the first handle 37 is turned by the knob, which causes the threaded rod 36 to rotate. At the same time, the rotating threaded rod 36 causes the moving disk 32 to move horizontally.

[0036] The fixing mechanism 4 includes an arc-shaped fixing plate 41, an arc-shaped elastic pad 42 is fixedly installed on one side of the arc-shaped fixing plate 41, and two insert rods 43 are fixedly installed on the side of the arc-shaped elastic pad 42 away from the arc-shaped fixing plate 41.

[0037] By adopting the above technical solution, by opening insertion holes on the upper and lower surfaces of the arch rib of the arch bridge, when the U-shaped sleeve 22 is fitted onto the inner side of the arch rib of the arch bridge, by driving the two adjacent arc-shaped fixing plates 41 and the two arc-shaped elastic pads 42 to move towards each other, the two arc-shaped elastic pads 42 and the upper and lower surfaces of the arch rib of the arch bridge are in close contact, and the insertion rod 43 is inserted into the insertion holes on the upper and lower surfaces of the arch rib of the arch bridge, thereby fixing the U-shaped sleeve 22 to the inner side of the arch rib of the arch bridge.

[0038] The inner wall of the U-shaped sleeve 22 is provided with a first sliding groove 44. Two first sliders 45 are slidably connected to the inner wall of the first sliding groove 44. One side of one first slider 45 is fixedly connected to one side of an arc-shaped fixing plate 41. A double-ended screw 46 is rotatably installed on one side of the U-shaped sleeve 22. The double-ended screw 46 passes through the first sliding groove 44 and is threadedly rotatably connected to the two first sliders 45. A second handle 47 is fixedly installed at one end of the double-ended screw 46.

[0039] By adopting the above technical solution, the second handle 47 is turned by the knob, which causes the double-headed screw 46 to rotate. The double-headed screw 46 causes the two first sliders 45 to slide towards each other or away from each other along the inner wall of the first slide groove 44. The two first sliders 45 cause the two arc-shaped fixing plates 41 and the two arc-shaped elastic pads 42 to move towards each other or away from each other.

[0040] The angle adjustment mechanism 5 includes four rotating shafts 51. One end of the rotating shaft 51 is fixedly connected to one side of the U-shaped sleeve 22. A worm gear 52 is fixedly installed at the end of the rotating shaft 51 away from the U-shaped sleeve 22. Two first slots 53 are opened on the upper surface of the two frame plates 2. The end of the rotating shaft 51 near the worm gear 52 is rotatably connected to the inner wall of the first slot 53. A worm 54 is rotatably installed on the inner wall of the first slot 53. The worm 54 and the worm gear 52 are meshed and connected. A third handle 55 is fixedly installed at the end of the worm 54 away from the first slot 53.

[0041] By adopting the above technical solution, when it is necessary to fix the U-shaped sleeve 22 at different parts of the arch rib of the arch bridge, the third handle 55 is turned by the knob. The third handle 55 causes the worm 54 to rotate, the worm 54 drives the worm wheel 52 to rotate, the worm wheel 52 causes the rotating shaft 51 to rotate, and the rotating shaft 51 causes the U-shaped sleeve 22 to rotate around the axis of the rotating shaft 51. This causes the two vertically corresponding arc-shaped fixing plates 41 and the two arc-shaped elastic pads 42 to rotate around the axis of the rotating shaft 51, so that the angle of the U-shaped sleeve 22, the arc-shaped fixing plates 41 and the arc-shaped elastic pads 42 are adapted to the arc surface of the arch rib of the arch bridge.

[0042] The moving mechanism 6 includes four second sliders 61. One end of a connecting sleeve 21 is fixedly connected to the lower surface of a second slider 61. The lower surfaces of the two frame plates 2 are each provided with a second slide groove 62. The inner walls of two adjacent second sliders 61 and a second slide groove 62 are slidably connected. The upper surfaces of the two frame plates 2 are each provided with a second slot 63. The inner walls of the two second slots 63 are each rotatably mounted with a lead screw 64. One lead screw 64 passes through a second slide groove 62 and is threadedly rotatably connected to two adjacent second sliders 61. The ends of the two lead screws 64 near the second slots 63 are each fixedly mounted with a first bevel gear 65.

[0043] By adopting the above technical solution, the first bevel gear 65 is driven to rotate, which in turn causes the lead screw 64 to rotate. The lead screw 64 drives the second slider 61 to move horizontally along the inner wall of the second slide groove 62. The second slider 61 moves the scaffold pole 1 horizontally through the connecting sleeve 21, thereby facilitating the horizontal displacement of the scaffold pole 1. This makes it easier for construction workers to stand on the scaffold boards on the surface of the scaffold pole 1 to carry out the construction work of the arch rib of the arch bridge.

[0044] A rotating rod 66 is rotatably mounted between two second slots 63. A second bevel gear 67 is fixedly mounted at both ends of the rotating rod 66. One second bevel gear 67 is meshed with a first bevel gear 65. A servo motor 68 is fixedly mounted on one side of a frame plate 2. The drive output end of the servo motor 68 is fixedly connected to one end of the rotating rod 66. An L-shaped fixing rod 69 is fixedly mounted on the outer wall of the servo motor 68. The end of the L-shaped fixing rod 69 away from the servo motor 68 is fixedly connected to one side of a frame plate 2.

[0045] By adopting the above technical solution, by setting an L-shaped fixing rod 69, the servo motor 68 is supported and fixed, thereby improving the stability of the servo motor 68. By turning on the servo motor 68, the drive shaft of the servo motor 68 causes the rotating rod 66 to rotate, the rotating rod 66 causes the two second bevel gears 67 to rotate, and the two second bevel gears 67 drive the two first bevel gears 65 to rotate.

[0046] Working principle: When constructing the two arch ribs of the arch bridge, the construction workers first attach the upper ends of the four scaffold poles 1 to the inside of the four connecting sleeves 21, and then turn the multiple first handles 37. The multiple first handles 37 cause the multiple threaded rods 36 to rotate. While the multiple threaded rods 36 rotate, the multiple moving discs 32 move horizontally, and the two adjacent moving discs 32 keep moving towards each other. The multiple moving discs 32 cause the multiple guide blocks 35 to slide horizontally along the inner wall of the corresponding guide grooves 34 and cause the multiple limiting rods 33 to move horizontally synchronously until the multiple limiting rods 33 are horizontally inserted into the corresponding limiting holes 11. Then, the turning of the multiple first handles 37 is stopped, thus conveniently realizing the fixed connection between the scaffold poles 1 and the frame plate 2, thereby effectively improving the convenience of using scaffolding during the construction of the arch ribs of the arch bridge.

[0047] Subsequently, the two frame plates 2 are hoisted to the space between the two arch ribs of the bridge using an external basket, and the four U-shaped sleeves 22 are fitted onto the inner sides of the two arch ribs. Then, the four third handles 55 are turned, which causes the four worm gears 54 to rotate. The four worm gears 54 drive the four worm wheels 52 to rotate, which in turn causes the four shafts 51 to rotate. The four shafts 51 cause the four U-shaped sleeves 22 to rotate around the axis of the shaft 51. At this time, the two vertically corresponding arc-shaped fixing plates 41 and the two arc-shaped elastic pads 42 rotate synchronously until the angles of the U-shaped sleeves 22, the arc-shaped fixing plates 41, and the arc-shaped elastic pads 42 are adapted to the arc surface of the arch ribs of the bridge. Then, the turning of the four third handles 55 is stopped, which makes it easier to fix the U-shaped sleeves 22 at different positions on the arch ribs of the bridge.

[0048] During this period, the construction workers used external drilling tools to drill two holes on the upper and lower surfaces of the two arch ribs of the bridge, with the holes corresponding vertically to the insertion rods 43. Then, they turned the four second handles 47, which rotated the four double-headed screws 46. The four double-headed screws 46 caused the two adjacent first sliders 45 to slide towards each other along the inner walls of the corresponding first sliding grooves 44. The two adjacent first sliders 45 caused the two arc-shaped fixing plates 41 and the two arc-shaped elastic pads 42 to move towards each other, so that the inner walls of the multiple arc-shaped elastic pads 42 and the upper and lower surfaces of the two arch ribs of the bridge were tightly fitted. At the same time, the multiple insertion rods 43 moved synchronously and were vertically inserted into the multiple insertion holes. At this time, the four U-shaped sleeves 22 were fixed on the inner side of the two arch ribs of the bridge, thus facilitating the fixed installation of the scaffolding and effectively improving the convenience of the construction of the arch ribs of the bridge.

[0049] Finally, by activating the servo motor 68, the drive shaft of the servo motor 68 causes the rotating rod 66 to rotate, which in turn causes the two second bevel gears 67 to rotate. The two second bevel gears 67 drive the two first bevel gears 65 to rotate, which in turn cause the two lead screws 64 to rotate. The two lead screws 64 then drive the four second sliders 61 to move horizontally along the inner wall of the corresponding second slide groove 62. The four second sliders 61 move the four scaffolding poles 1 horizontally through the four connecting sleeves 21, thus facilitating the horizontal displacement of the scaffolding. This makes it easier for construction workers to stand on the scaffolding and perform construction work at different locations on the two arch ribs of the bridge. At the same time, it effectively reduces the amount of scaffolding used during construction and the time required to erect the scaffolding.

[0050] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A scaffold for the arch rib of an arch bridge, comprising four scaffold poles (1) and two frame plates (2), characterized in that: Two connecting sleeves (21) are provided on the lower surface of each of the two frame plates (2). One end of the scaffold pole (1) is in contact with the inner wall of the connecting sleeve (21). U-shaped sleeves (22) are provided on both sides of the two frame plates (2). The surface of the connecting sleeve (21) is provided with a disassembly and assembly mechanism (3) for disassembling and assembling the scaffold pole (1). The U-shaped sleeve (22) is provided with a fixing mechanism (4). An angle adjustment mechanism (5) is provided between the frame plate (2) and the U-shaped sleeve (22). The lower surface of the two frame plates (2) is provided with a moving mechanism (6) for moving the scaffold pole (1). The angle adjustment mechanism (5) includes four rotating shafts (51). One end of each rotating shaft (51) is fixedly connected to one side of a U-shaped sleeve (22). A worm gear (52) is fixedly installed at the end of the rotating shaft (51) away from the U-shaped sleeve (22). Two first slots (53) are opened on the upper surfaces of the two frame plates (2). The end of the rotating shaft (51) near the worm gear (52) is rotatably connected to the inner wall of the first slot (53). A worm (54) is rotatably installed on the inner wall of the first slot (53). The worm (54) and the worm gear (52) are meshed together. A third handle (55) is fixedly installed at the end of the worm (54) away from the first slot (53). The moving mechanism (6) includes four second sliders (61), one end of a connecting sleeve (21) is fixedly connected to the lower surface of a second slider (61), the lower surfaces of the two frame plates (2) are provided with second grooves (62), the inner walls of two adjacent second sliders (61) and a second groove (62) are slidably connected, the upper surfaces of the two frame plates (2) are provided with second slots (63), the inner walls of the two second slots (63) are rotatably mounted with lead screws (64), one lead screw (64) passes through a second groove (62) and is rotatably connected to two adjacent second sliders (61) by threads, and the ends of the two lead screws (64) near the second slots (63) are fixedly mounted with first bevel gears (65). A rotating rod (66) is rotatably installed between the two second slots (63). A second bevel gear (67) is fixedly installed at both ends of the rotating rod (66). One second bevel gear (67) and one first bevel gear (65) are meshed together. A servo motor (68) is fixedly installed on one side of the frame plate (2). The drive output end of the servo motor (68) is fixedly connected to one end of the rotating rod (66). An L-shaped fixing rod (69) is fixedly installed on the outer wall of the servo motor (68). The end of the L-shaped fixing rod (69) away from the servo motor (68) is fixedly connected to one side of the frame plate (2).

2. The scaffolding for the arch ribs of an arch bridge as described in claim 1, characterized in that, Two limiting holes (11) are provided at one end of the scaffold pole (1).

3. The scaffolding for the arch ribs of an arch bridge as described in claim 2, characterized in that, The disassembly and assembly mechanism (3) includes an installation sleeve (31), one end of which is fixedly connected to the inner wall of the connecting sleeve (21). The installation sleeve (31) has a movable disk (32) inside, and two limiting rods (33) are fixedly installed on one side of the movable disk (32). The end of the limiting rod (33) away from the movable disk (32) is movably inserted into the inner wall of the limiting hole (11).

4. The scaffolding for the arch ribs of an arch bridge as described in claim 3, characterized in that, The inner wall of the mounting sleeve (31) has two guide grooves (34), and the inner walls of the two guide grooves (34) are slidably connected to guide blocks (35). One side of the two adjacent guide blocks (35) is fixedly connected to the outer wall of a movable disk (32).

5. The scaffolding for the arch ribs of an arch bridge as described in claim 3, characterized in that, The end of the mounting sleeve (31) away from the connecting sleeve (21) is threadedly mounted with a threaded rod (36). The side of the movable disk (32) away from the limiting rod (33) is rotatably connected to one end of the threaded rod (36). The end of the threaded rod (36) away from the movable disk (32) is fixedly mounted with a first handle (37).

6. The scaffolding for the arch ribs of an arch bridge as described in claim 1, characterized in that, The fixing mechanism (4) includes an arc-shaped fixing plate (41), an arc-shaped elastic pad (42) is fixedly installed on one side of the arc-shaped fixing plate (41), and two insert rods (43) are fixedly installed on the side of the arc-shaped elastic pad (42) away from the arc-shaped fixing plate (41).

7. The scaffolding for the arch ribs of an arch bridge as described in claim 6, characterized in that, The inner wall of the U-shaped sleeve (22) is provided with a first sliding groove (44). Two first sliders (45) are slidably connected to the inner wall of the first sliding groove (44). One side of one first slider (45) is fixedly connected to one side of an arc-shaped fixing plate (41). A double-headed screw (46) is rotatably installed on one side of the U-shaped sleeve (22). The double-headed screw (46) passes through the first sliding groove (44) and is threadedly rotatably connected to the two first sliders (45). A second handle (47) is fixedly installed at one end of the double-headed screw (46).

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