An auxiliary device for rapid and accurate assembly of fabricated steel corrugated pipe culvert

Abstract

The utility model discloses an auxiliary device for quick and accurate assembly of assembled steel corrugated pipe culvert, specific corrugated pipe construction technical field, including corrugated pipe support frame and auxiliary lifting lifting appliance, and the top of two groups corrugated pipe support frame is placed with the support corrugated pipe, the outside of the pipe wall of support corrugated pipe hangs and relies on the auxiliary lifting lifting appliance, the below of corrugated pipe support frame is provided with the insertion type sliding wheel. The equipment removal and transfer time of single work section is greatly shortened. The auxiliary lifting lifting appliance is combined through the metal hinge and the rotating hinge disc, the flexible adjustment of the proper inclination angle of the pipe piece is realized, the collision with the installed pipe section is avoided, the hoisting waiting time is reduced, and the corrugated pipe support frame can adjust the support angle according to the needs of different construction stages.

Description

Technical Field

[0001] This utility model relates to the field of corrugated pipe construction technology, and more specifically, to an auxiliary device for the rapid and precise assembly of prefabricated steel corrugated pipe culverts. Background Technology

[0002] The triangular simple hanger is a temporary support device consisting of three main rods that are hinged or welded to form a triangular structure. Its core function is to assist in the positioning, adjustment and fixing of pipe sections during the assembly process, reduce the intensity of manual operation, improve construction efficiency, and at the same time ensure assembly accuracy and safety.

[0003] As disclosed in CN106352169A, a multi-rib support frame for a spiral corrugated pipe includes columns and wall braces, both of which are located within the wall of the spiral corrugated pipe. Both ends of the wall braces are connected to the wall of the spiral corrugated pipe. One end of the column is connected to the wall of the spiral corrugated pipe, and the other end is connected to the wall brace. The frame also includes at least two oblique ribs, specifically a first oblique rib and a second oblique rib. One end of the first oblique rib is connected to one end of the wall brace, and the other end is connected to the column. One end of the second oblique rib is connected to the other end of the wall brace, and the other end is also connected to the column. The first oblique rib, the second oblique rib, and the pipe wall together form a triangular cross-section load-bearing structure. When the first and second sections of the wall brace are under stress, the ring stiffness of the spiral corrugated pipe can be increased by at least three times under the action of the triangular load-bearing structure formed by the first oblique rib, the second oblique rib, and the pipe wall.

[0004] However, in the actual process of using lifting equipment to construct corrugated pipes, since the existing support frames mostly adopt a structure design of fixed welding or dense bolt connection, not only do they require the use of multiple tools to operate one by one when disassembling, but in the scenario of temporary construction in multiple areas, the construction team often needs to complete the transfer and installation of corrugated pipes at different work points in a short period of time. However, due to the inconvenience of disassembling the support frames, each transfer requires a lot of manpower and resources to disassemble, and after disassembly, they need to be reassembled and debugged.

[0005] Therefore, an auxiliary device for the rapid and precise assembly of prefabricated corrugated steel pipe culverts is proposed to address the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides an auxiliary device for the rapid and accurate assembly of prefabricated steel corrugated pipe culverts, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an auxiliary device for the rapid and precise assembly of prefabricated steel corrugated pipe culverts, comprising a corrugated pipe support frame and an auxiliary lifting device, wherein a supporting corrugated pipe is inserted and placed at the top of two sets of the corrugated pipe support frames, and an auxiliary lifting device is attached to the outer side of the wall of the supporting corrugated pipe, and a plug-in sliding wheel is provided below the corrugated pipe support frame.

[0008] Preferably, the corrugated pipe support frame includes a first corrugated pipe and a second corrugated pipe, the side of the first corrugated pipe is connected to the second corrugated pipe, the first corrugated pipe and the second corrugated pipe are placed at an angle, and the top ends of the first corrugated pipe and the second corrugated pipe are placed crosswise, with a placement groove provided.

[0009] Preferably, the corrugated pipe support frame further includes a third corrugated pipe, which is installed below the first and second corrugated pipes. The first, second, and third corrugated pipes form a detachable structure with bolts, and the first, second, and third corrugated pipes have the same structure.

[0010] Preferably, the auxiliary lifting device includes a rotating hinge disc, a fixed hook, a metal hinge, and a connecting hook. The top of the rotating hinge disc is threadedly connected to the fixed hook, the interior of the rotating hinge disc is provided with a metal hinge, and the bottom of the rotating hinge disc is threadedly connected to the connecting hook.

[0011] Preferably, the connecting hook includes a fixed chain and a hook, and the hook is fixedly connected to the lower part of the fixed chain by bolts, and the fixed hook is larger than the hook.

[0012] Preferably, the supporting corrugated pipe is fixed with bolts in a groove where the first and second corrugated pipes are staggered, and the auxiliary lifting device is slidably connected along the supporting corrugated pipe via a fixed hook.

[0013] Preferably, the plug-in sliding wheel includes a plug-in rod and a connecting frame, with the connecting frame located below the plug-in rod. The corrugated pipe support frame and the plug-in sliding wheel are connected by a third corrugated pipe and the plug-in rod to form a detachable structure.

[0014] Preferably, the plug-in sliding wheel further includes a plug-in shaft and a movable wheel, with the plug-in shaft passing through the interior of the connecting frame, and the movable wheel rotatably connected to the outer diameter of the plug-in shaft.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] Compared to existing technologies, this auxiliary device for the rapid and precise assembly of prefabricated corrugated pipe culverts utilizes plug-in sliding wheels, enabling rapid relocation of the corrugated pipe support frame. Combined with its detachable structure, the dismantling and relocation time for individual sections is significantly reduced. The auxiliary lifting device, through a combination of metal hinges and rotating hinge discs, allows for flexible adjustment of the appropriate tilt angle of the pipe segments, avoiding collisions with already installed pipe sections and reducing hoisting waiting time. To meet the needs of different construction stages, the corrugated pipe support frame can adjust its support angle: maintaining a reasonable tilt during the hoisting of side segments, and securing the top with cross supports after assembly, adapting to the entire assembly process from bottom to top. The ground anchor bolt fixing and gradual load unloading mechanism enable continuous operation for post-installation inspection and relocation while ensuring safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a top view of the corrugated pipe support frame of this utility model.

[0019] Figure 3 This is a side view of the corrugated pipe support frame of this utility model.

[0020] Figure 4 This is a side view of the first corrugated pipe of this utility model.

[0021] Figure 5 This is an exploded structural diagram of the corrugated pipe support frame of this utility model.

[0022] The attached diagram is labeled as follows: 1. Corrugated pipe support frame; 2. First corrugated pipe; 3. Second corrugated pipe; 4. Third corrugated pipe; 5. Supporting corrugated pipe; 6. Insertable sliding wheel; 7. Auxiliary lifting device; 8. Rotating hinge disc; 9. Fixed hook; 10. Metal hinge; 11. Connecting hook; 12. Fixed chain; 13. Lifting hook; 14. Insertable rod; 15. Connecting frame; 16. Insertable shaft; 17. Moving wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] As attached Figures 1 to 5The diagram illustrates an auxiliary device for the rapid and precise assembly of prefabricated corrugated pipe culverts. It includes a corrugated pipe support frame 1 and an auxiliary lifting device 7. Two sets of corrugated pipe support frames 1 are fitted together at their top ends, with a supporting corrugated pipe 5 attached to the outer wall of the supporting corrugated pipe 5. A plug-in sliding wheel 6 is installed below the corrugated pipe support frame 1. The first corrugated pipe 2 has a single-piece weight of 81.7 kg and a diameter of 150 cm. Based on the site terrain, the cross-section, length, and connection method of the corrugated pipe support frame 1 are designed. The first corrugated pipe 2 is a DN150cm galvanized steel pipe with a wall thickness of 3.5 mm. The auxiliary lifting device 7 has a rated load ≥3t, a metal hinge 10 diameter ≥8 mm, a shackle, a rotating hinge disc 8, and ground anchor bolts. When connecting the corrugated pipe support frame 1, an electric welding machine, a cutting machine, a torque wrench, and a spirit level are used.

[0026] During assembly, the corrugated pipe support frame 1 is assembled on a level ground, with the included angle between the first corrugated pipe 2 and the second corrugated pipe 3 at 60°. Then, the plug-in sliding wheels 6 are installed, and the auxiliary lifting device 7 is suspended, with the metal hinge 10 connected to the segment lifting point. The quality of the connections and the tightness of the connectors after assembly of the corrugated pipe support frame 1 are checked to ensure there is no looseness. Then, based on the measurement and layout results, the corrugated pipe support frame 1 is placed on both sides of the pipe section assembly axis at a distance of 1.2 to 1.5 times the pipe diameter. The verticality of the corrugated pipe support frame 1 is calibrated using a spirit level, with a deviation ≤2°. The third corrugated pipe 4 is fixed with ground anchor bolts to prevent the corrugated pipe support frame 1 from slipping. Support frame 1 is placed on both sides of the bottom of the pipe. The pipe segment is slowly lifted to a suitable height using auxiliary lifting device 7. Then, the level of the pipe segment is adjusted so that the error is ≤3mm / m, and the bolt holes of adjacent pipe sections are aligned. When hoisting the side pipe segments, the tilt angle of the corrugated pipe support frame 1 is adjusted to 30°~45° to avoid collision with the already installed pipe sections. After the top pipe segment is assembled, it is temporarily fixed with a cross support frame to prevent the pipe opening from deforming. Then, the bolts are pre-tightened according to the design requirements with a torque of 80~100N·m, and the overlap width is checked to be ≥170mm. After the overall stability of the pipe section is confirmed, the load of the corrugated pipe support frame 1 is gradually unloaded, the corrugated pipe support frame 1 is removed and transferred to the next section.

[0027] In a preferred embodiment, the corrugated pipe support frame 1 includes a first corrugated pipe 2 and a second corrugated pipe 3. The side of the first corrugated pipe 2 is connected to the second corrugated pipe 3. The first corrugated pipe 2 and the second corrugated pipe 3 are placed at an angle, with their top ends intersecting and leaving a placement groove. The support corrugated pipe 5 is fixed with bolts in the groove where the first corrugated pipe 2 and the second corrugated pipe 3 are intersected. The auxiliary lifting device 7 is slidably connected along the support corrugated pipe 5 through a fixing hook 9. The corrugated pipe support frame 1 also includes a third corrugated pipe 4, which is installed below the first corrugated pipe 2 and the second corrugated pipe 3. The first corrugated pipe 2, the second corrugated pipe 3, and the third corrugated pipe 4 are bolted together to form a detachable structure. The first corrugated pipe 2, the second corrugated pipe 3, and the third corrugated pipe 4 have the same structure. During assembly, the first corrugated pipe 2, the second corrugated pipe 3, and the third corrugated pipe 4 are connected through their respective connecting holes. During assembly, the first corrugated pipe 2 and the second corrugated pipe 3 are crossed and assembled, forming a placement groove between them. The supporting corrugated pipe 5 is placed on top of the placement groove, and the supporting corrugated pipe 5 is fixed to the first corrugated pipe 2 and the second corrugated pipe 3.

[0028] In a preferred embodiment, the auxiliary lifting device 7 includes a rotating hinge plate 8, a fixed hook 9, a metal hinge 10, and a connecting hook 11. The top of the rotating hinge plate 8 is threadedly connected to the fixed hook 9, and the metal hinge 10 is disposed through the interior of the rotating hinge plate 8. The bottom of the rotating hinge plate 8 is threadedly connected to the connecting hook 11, which includes a fixed chain 12 and a hook 13. The hook 13 is fixedly connected to the bottom of the fixed chain 12 by bolts. The fixed hook 9 is larger than the hook 13. The rotating hinge plate 8 in the auxiliary lifting device 7 is used to connect the metal hinge 10. The height of the fixed hook 9 is adjusted by rotating the hinge plate 8 to move the metal hinge 10.

[0029] In a preferred embodiment, the plug-in sliding wheel 6 includes a plug-in rod 14 and a connecting frame 15. The connecting frame 15 is provided below the plug-in rod 14. The corrugated pipe support frame 1 and the plug-in sliding wheel 6 are connected by a third corrugated pipe 4 and the plug-in rod 14 to form a detachable structure. The plug-in sliding wheel 6 also includes a plug-in shaft 16 and a moving wheel 17. The plug-in shaft 16 is provided through the interior of the connecting frame 15. The moving wheel 17 is rotatably connected to the outer diameter of the plug-in shaft 16. The plug-in sliding wheel 6 is a detachable structure. The plug-in sliding wheel 6 is fixed inside the third corrugated pipe 4 by the plug-in rod 14. The connecting frame 15 connected to the plug-in rod 14 is connected to the moving wheel 17 through the plug-in shaft 16. When the moving wheel 17 is grounded, the moving wheel 17 rotates along the plug-in shaft 16.

[0030] In this embodiment, the first corrugated pipe 2, the plug-in sliding wheel 6, and the auxiliary lifting device 7 are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we are only using them without making any structural or functional improvements, so we will not go into detail here.

[0031] The working process of this utility model is as follows: The first corrugated pipe 2 has a single pipe weight of 81.7kg and a pipe diameter of 150cm. Based on the site terrain, the cross-section, length and connection method of the corrugated pipe support frame 1 are designed. The first corrugated pipe 2 is a DN150cm galvanized steel pipe with a wall thickness of 3.5mm. The auxiliary lifting device 7 has a rated load of ≥3t, a metal hinge 10 with a diameter of ≥8mm, a shackle, a rotating hinge plate 8, and ground anchor bolts. When connecting the corrugated pipe support frame 1, an electric welding machine, a cutting machine, a torque wrench and a spirit level are used.

[0032] During assembly, the corrugated pipe support frame 1 is assembled on a level ground, with the included angle between the first corrugated pipe 2 and the second corrugated pipe 3 at 60°. Then, the plug-in sliding wheels 6 are installed, and the auxiliary lifting device 7 is suspended, with the metal hinge 10 connected to the segment lifting point. The quality of the connections and the tightness of the connectors after assembly of the corrugated pipe support frame 1 are checked to ensure there is no looseness. Then, based on the measurement and layout results, the corrugated pipe support frame 1 is placed on both sides of the pipe section assembly axis at a distance of 1.2 to 1.5 times the pipe diameter. The verticality of the corrugated pipe support frame 1 is calibrated using a spirit level, with a deviation ≤2°. The third corrugated pipe 4 is fixed with ground anchor bolts to prevent the corrugated pipe support frame 1 from slipping. Support frame 1 is placed on both sides of the bottom of the pipe. The pipe segment is slowly lifted to a suitable height using auxiliary lifting device 7. Then, the level of the pipe segment is adjusted so that the error is ≤3mm / m, and the bolt holes of adjacent pipe sections are aligned. When hoisting the side pipe segments, the tilt angle of the corrugated pipe support frame 1 is adjusted to 30°~45° to avoid collision with the already installed pipe sections. After the top pipe segment is assembled, a cross support frame is used for temporary fixation to prevent pipe end deformation. Then, the bolts are pre-tightened according to the design requirements with a torque of 80~100N·m, and the overlap width is checked to be ≥170mm. After the overall stability of the pipe section is confirmed, the load of the corrugated pipe support frame 1 is gradually unloaded, the corrugated pipe support frame 1 is removed and transferred to the next section.

[0033] Then, remove debris from the assembly area to ensure the ground flatness is ≤5cm; use a total station to mark the culvert axis and the support point of the corrugated pipe support frame 1, and mark them with white and gray lines; provide special training on hoisting operations to the operators, clarifying command signals and emergency measures; confirm that the hoisting points are secure and that the wire ropes are free of broken strands and kinks; lift the pipe segment 1 10cm off the ground, let it stand for 5 minutes, and observe the stability of the corrugated pipe support frame 1; fine-tune the position of the pipe segment using auxiliary lifting equipment to ensure that the bolt holes are aligned, with a deviation of ≤1mm; then, after assembling every 3 corrugated plates, use a laser profiler to check the pipe diameter roundness, with an allowable deviation of ±1%; after tightening the bolts, immediately apply weather-resistant sealant with a thickness of ≥2mm to prevent water seepage; for culverts with a diameter ≥2m, add transverse cross supports to prevent backfill deformation.

Claims

1. An auxiliary device for rapid and precise assembly of prefabricated steel corrugated pipe culverts, comprising a corrugated pipe support frame (1) and an auxiliary lifting device (7), characterized in that: The top of the two sets of corrugated pipe support frames (1) are fitted with supporting corrugated pipes (5), and auxiliary lifting devices (7) are attached to the outside of the pipe wall of the supporting corrugated pipes (5). Insertable sliding wheels (6) are provided below the corrugated pipe support frames (1).

2. The auxiliary device for rapid and precise assembly of prefabricated corrugated steel pipe culverts according to claim 1, characterized in that: The corrugated pipe support frame (1) includes a first corrugated pipe (2) and a second corrugated pipe (3). The side of the first corrugated pipe (2) is connected to the second corrugated pipe (3). The first corrugated pipe (2) and the second corrugated pipe (3) are placed at an angle, and the top ends of the first corrugated pipe (2) and the second corrugated pipe (3) are placed crosswise, with a placement groove provided.

3. The auxiliary device for rapid and precise assembly of prefabricated corrugated steel pipe culverts according to claim 2, characterized in that: The corrugated pipe support frame (1) also includes a third corrugated pipe (4). The third corrugated pipe (4) is installed below the first corrugated pipe (2) and the second corrugated pipe (3). The first corrugated pipe (2), the second corrugated pipe (3) and the third corrugated pipe (4) form a detachable structure by bolts. The first corrugated pipe (2), the second corrugated pipe (3) and the third corrugated pipe (4) have the same structure.

4. The auxiliary device for rapid and precise assembly of prefabricated corrugated steel pipe culverts according to claim 1, characterized in that: The auxiliary lifting device (7) includes a rotating hinge disc (8), a fixed hook (9), a metal hinge (10), and a connecting hook (11). The top of the rotating hinge disc (8) is threaded with the fixed hook (9), the interior of the rotating hinge disc (8) is provided with the metal hinge (10), and the bottom of the rotating hinge disc (8) is threaded with the connecting hook (11).

5. The auxiliary device for rapid and precise assembly of prefabricated corrugated steel pipe culverts according to claim 4, characterized in that: The connecting hook (11) includes a fixed chain (12) and a hook (13). The hook (13) is fixedly connected to the bottom of the fixed chain (12) by bolts. The fixed hook (9) is larger than the hook (13).

6. The auxiliary device for rapid and precise assembly of prefabricated corrugated steel pipe culverts according to claim 1, characterized in that: The supporting corrugated pipe (5) is fixed by bolts in the groove where the first corrugated pipe (2) and the second corrugated pipe (3) are interspersed. The auxiliary lifting device (7) is slidably connected along the supporting corrugated pipe (5) by a fixed hook (9).

7. The auxiliary device for rapid and precise assembly of prefabricated corrugated steel pipe culverts according to claim 1, characterized in that: The plug-in sliding wheel (6) includes a plug-in rod (14) and a connecting frame (15). The connecting frame (15) is provided below the plug-in rod (14). The corrugated pipe support frame (1) and the plug-in sliding wheel (6) are connected by a third corrugated pipe (4) and the plug-in rod (14) to form a detachable structure.

8. The auxiliary device for rapid and precise assembly of prefabricated corrugated steel pipe culverts according to claim 7, characterized in that: The plug-in sliding wheel (6) also includes a plug-in shaft (16) and a moving wheel (17). The plug-in shaft (16) is provided through the interior of the connecting frame (15), and the moving wheel (17) is rotatably connected to the outer diameter of the plug-in shaft (16).

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