A suspended scaffold structure for bridge deck system construction

By designing a suspended ladder structure for bridge deck construction, stability is provided by supporting frames and counterweights, and a rope winding mechanism is installed in conjunction with chain hoists and suspension rods. This solves the problem of the suspended ladder being prone to swaying, improves safety and maintenance efficiency, and protects the ropes.

CN224326241UActive Publication Date: 2026-06-05中建六局第四建设有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
中建六局第四建设有限公司
Filing Date
2025-04-29
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Suspended ladders are easily blown by the wind during construction, causing them to sway and wobble, which poses a safety hazard.

Method used

A suspended ladder structure for bridge deck construction was designed, including a support frame, suspension device, suspension longitudinal beam, traveling device, counterweight, top seat, base, rotating column, rope, footboard, winding assembly, connecting assembly, and rotating assembly. The support frame provides stability, the counterweight ensures the stability of the suspension system, and the upper and lower crossbeams are fixed by chain hoists and hangers. A mechanism for winding and releasing the rope is set to reduce swaying.

Benefits of technology

This improved the stability and safety of the suspended ladder, reduced rope sway, increased maintenance efficiency, and protected the rope's service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to bridge construction tool field especially, it is a kind of suspension hoist ladder structure of bridge floor system construction, in prior art, when construction bridge floor system crash barrier or bridge cross baffle, the mode of solving construction person's operation surface is the mode of using suspension hoist ladder to carry out construction to bridge outer side, but suspension hoist ladder is placed in the air, its bottom is not positioned and is placed with reinforcement, because suspension hoist ladder is light in weight, when suspension hoist ladder is blown by wind, swing and sway are inevitable, there is certain security risk, therefore, we propose a kind of suspension hoist ladder structure of bridge floor system construction to solve the above problems.
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Description

Technical Field

[0001] This utility model relates to the field of bridge construction tools, and in particular to a suspended ladder structure for bridge deck construction. Background Technology

[0002] In existing technologies, when constructing bridge deck crash barriers or bridge diaphragms, the work surface for construction workers is provided by using suspended ladders to construct the outer side of the bridge. However, the suspended ladders are placed in the air without any bottom restraint or reinforcement. Due to their light weight, the suspended ladders are prone to swaying and shaking when blown by the wind, posing certain safety hazards. Therefore, we propose a suspended ladder structure for bridge deck construction to solve the above problems. Utility Model Content

[0003] The purpose of this utility model is to solve the shortcomings of the existing technology, which has the problem of suspended ladders being placed in the air without bottom restraint. Due to the light weight of the suspended ladders, they are prone to swaying and shaking when blown by the wind, which poses certain safety hazards. Therefore, this utility model proposes a suspended ladder structure for bridge deck construction.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A suspended ladder structure for bridge deck construction includes:

[0006] The support frame includes a suspension device, a suspension longitudinal beam, a traveling device, and a counterweight. The suspension longitudinal beam is welded and fixed to the top of the support frame. The end of the suspension longitudinal beam away from the support frame is connected to the suspension device. The traveling device is connected to the four legs of the support frame. The counterweight is placed on a platform a certain distance above the four legs of the support frame.

[0007] A top seat and a base, wherein the top seat and the base are respectively disposed at the top and bottom of the suspension device;

[0008] The first rotating column is rotatably installed inside the top seat;

[0009] One end of the rope is fixedly installed on the rotating column;

[0010] The pedal is fixedly installed on the rope;

[0011] A winding assembly is located on one side of the top seat; it is used to drive the first rotating column to rotate and wind up the rope.

[0012] The second rotating column is rotatably mounted inside the base;

[0013] A connecting component, mounted on the second rotating column, is used to connect to a rope;

[0014] A rotating component, located on one side of the base, is used to drive the second rotating column to rotate.

[0015] Preferably, in the suspended ladder structure for bridge deck construction, the suspension device includes:

[0016] The upper crossbeam is welded to the end of the suspended longitudinal beam;

[0017] The chain hoist is hinged to the upper crossbeam via a base;

[0018] The suspension rod is anchored at one end to the top of the upper crossbeam;

[0019] The lower crossbeam has the other end of the hanger anchored to it, and the top seat and base are respectively installed on the upper and lower crossbeams.

[0020] Preferably, the winding assembly includes a winding box disposed on one side of the top seat, one end of the first rotating column extends into the winding box and is fixedly installed with a winding column; a gear is sleeved on the winding column, a first fixed column is disposed on the inner wall of the winding box, and a movable block is slidably installed on the first fixed column; a movable frame is fixedly installed on one side of the movable block, and one end of a first spring is fixedly installed on the movable frame, and the other end of the first spring is fixedly installed on the inner wall of the winding box.

[0021] Preferably, a second fixed column is fixedly installed on the inner wall of the winding box, and a movable column is slidably installed on the second fixed column. The movable column is fixedly connected to the movable frame, and a toothed block that cooperates with the gear is fixedly installed on the movable column.

[0022] Preferably, the connecting assembly includes a connecting seat on a second rotating column, and the connecting seat has a connecting groove. The inner wall of the connecting groove has a placement groove, and one end of a second spring is provided on the inner wall of the placement groove. The other end of the second spring is fixedly installed with a locking block. A connecting block is provided in the connecting groove and is fixedly installed on the rope. The connecting block has a locking groove that cooperates with the locking block.

[0023] Preferably, a button is slidably mounted on the connecting seat, and the button is connected to a connecting rod that is fixedly connected to the card block.

[0024] Preferably, the rotating assembly includes a rotating seat disposed on one side of the base, and a worm gear is rotatably mounted inside the rotating seat. A handle is fixedly mounted on the worm gear, and a worm wheel meshes with the worm gear. A transmission column is fixedly mounted on the worm wheel, and the transmission column is fixedly connected to the second rotating column.

[0025] The beneficial effects of the suspended ladder structure for bridge deck construction described in this utility model are as follows:

[0026] The suspension ladder is supported by brackets and can move freely. Counterweights ensure the stability of the suspension system, while a chain hoist allows the lower crossbeam at the bottom of the ladder to be raised and lowered. The upper and lower crossbeams are fixed in place by suspension rods to prevent swaying. Furthermore, the inclusion of a top seat, a first rotating column, and a winding assembly allows for the winding and unwinding of the ropes and steps. The ladder can be unwound during use and wound up when not in use, eliminating the need to carry the ladder during bridge maintenance. This simplifies maintenance, increases efficiency, and protects the ropes from prolonged exposure to the external environment, preventing damage to their lifespan.

[0027] Because of the base, second rotating column, connecting components, and rotating components, a limiting and reinforcing placement can be set at the bottom, reducing the swaying of the rope during climbing and maintenance, thus ensuring safety.

[0028] This invention facilitates maintenance, improves efficiency, reduces rope sway, and ensures safety. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the working state of a suspended ladder structure for bridge deck construction proposed in this utility model.

[0030] Figure 2 This is a three-dimensional structural rendering of a suspended ladder structure for bridge deck construction proposed in this utility model.

[0031] Figure 3 This is a schematic diagram of a suspended ladder structure for bridge deck construction proposed in this utility model;

[0032] Figure 4 This is a schematic diagram of the winding component of a suspended ladder structure for bridge deck construction proposed in this utility model.

[0033] Figure 5 This is a schematic diagram of the connecting components of a suspended ladder structure for bridge deck construction proposed in this utility model;

[0034] Figure 6 This is a schematic diagram of the rotating component of a suspended ladder structure for bridge deck construction proposed in this utility model.

[0035] In the diagram: 1. Top seat; 2. Base; 3. First rotating column; 4. Rope; 5. Pedal; 6. Second rotating column; 7. Winding box; 8. Winding column; 9. Gear; 10. First fixed column; 11. Moving block; 12. Moving frame; 13. First spring; 14. Second fixed column; 15. Moving column; 16. Gear block; 17. Connecting seat; 18. Placement slot; 19. Second spring; 20. Locking block; 21. Connecting block; 22. Locking slot; 23. Button; 24. Connecting rod; 25. Rotating seat; 26. Worm gear; 27. Handle; 28. Transmission column; 101. Bridge deck; 102. Support frame; 103. Suspension device; 104. Suspension longitudinal beam; 105. Traveling device; 106. Counterweight block; 1031. Upper crossbeam; 1032. Lower crossbeam; 1033. Hanging rod; 1034. Chain hoist. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0037] Reference Figures 1-6 A suspended ladder structure for bridge deck construction, comprising:

[0038] The support frame 102, suspension device 103, suspension longitudinal beam 104, traveling device 105, and counterweight 106 are provided. The suspension longitudinal beam 104 is welded and fixed to the top of the support frame 102. The end of the suspension longitudinal beam 104 away from the support frame 102 is connected to the suspension device 103. The traveling device 105 is connected to the four legs of the support frame 102. The counterweight 106 is placed on a platform a certain distance above the four legs of the support frame 102.

[0039] Top seat 1 and base seat 2 are respectively installed at the top and bottom of the bridge;

[0040] The first rotating column 3 is rotatably installed inside the top seat 1;

[0041] Rope 4, one end of which is fixedly installed on the rotating column 3;

[0042] The pedal 5 is fixedly installed on the rope 3;

[0043] A winding assembly is located on one side of the top seat 1; it is used to drive the first rotating column 3 to rotate and wind up the rope 4.

[0044] The second rotating column 6 is rotatably installed inside the base 2;

[0045] A connecting component, mounted on the second rotating column 6, is used to connect with the rope 4;

[0046] A rotating component is located on one side of the base 2 and is used to drive the second rotating column 6 to rotate.

[0047] In this embodiment, the suspension device 103 includes:

[0048] The upper crossbeam 1031 is welded to the end of the suspension longitudinal beam 104;

[0049] Chain hoist 1034 is hinged to upper crossbeam 1031 via base;

[0050] One end of the hanger rod 1033 is anchored to the top of the upper crossbeam 1031;

[0051] The lower crossbeam 1032 and the other end of the hanger 1033 are anchored on the lower crossbeam 1032. The top seat 1 and the base 2 are respectively set on the upper crossbeam 1031 and the lower crossbeam 1032.

[0052] In this embodiment, the winding assembly includes a winding box 7 disposed on one side of the top seat 1. One end of the first rotating column 3 extends into the winding box 7 and is fixedly installed with a winding column 8. A gear 9 is sleeved on the winding column 8. A first fixing column 10 is disposed on the inner wall of the winding box 7, and a moving block 11 is slidably installed on the first fixing column 10. A moving frame 12 is fixedly installed on one side of the moving block 11, and one end of a first spring 13 is fixedly installed on the moving frame 12. The other end of the first spring 13 is fixedly installed on the inner wall of the winding box 7.

[0053] In this embodiment, a second fixed column 14 is fixedly installed on the inner wall of the winding box 7, and a movable column 15 is slidably installed on the second fixed column 14. The movable column 15 is fixedly connected to the movable frame 12, and a toothed block 16 that cooperates with the gear 9 is fixedly installed on the movable column 15.

[0054] In this embodiment, the connecting component includes a connecting seat 17 on the second rotating column 6, and a connecting groove is provided on the connecting seat 17. A placement groove 18 is provided on the inner wall of the connecting groove, and one end of a second spring 19 is provided on the inner wall of the placement groove 18. A locking block 20 is fixedly installed on the other end of the second spring 19. A connecting block 21 is provided in the connecting groove, and the connecting block 21 is fixedly installed on the rope 4. A locking groove 22 that cooperates with the locking block 20 is provided on the connecting block 21.

[0055] In this embodiment, a button 23 is slidably mounted on the connecting base 17, and the button 23 is connected to a connecting rod 24 that is fixedly connected to the card block 20.

[0056] In this embodiment, the rotating assembly includes a rotating seat 25 disposed on one side of the base 2, and a worm gear 26 is rotatably mounted inside the rotating seat 25. A handle 27 is fixedly mounted on the worm gear 26, and a worm wheel meshes on the worm gear 26. A transmission column 28 is fixedly mounted on the worm wheel, and the transmission column 28 is fixedly connected to the second rotating column 6.

[0057] In this embodiment, when climbing is required for maintenance of the bridge deck's anti-collision guardrails or replacement of the bridge deck's drainage pipes, the support frame 102 is manually pushed to the work surface. The frame is then leveled and fixed using the brake jacks of the bottom walking device 105. A counterweight 106 of a certain weight is placed on the support frame 102. Then, the lower crossbeam 1033 is lowered to a certain position by manually pulling the chain hoist 1034. The hoist 1034 is then anchored to the upper and lower crossbeams with bolts. After the upper and lower crossbeams are fixed, the chain hoist 1034 is retracted. The upper and lower crossbeams are respectively fixed with a top seat 1 and a base 2. A suspended ladder for workers to ascend and descend is located between the top seat 1 and the base 2. The suspension ladder is stabilized by anchoring the upper and lower crossbeams to the hoist 1034.

[0058] Then, the output shaft of the handheld motor is placed into the take-up box 7. During the placement process, because the vertical section of the moving block 11 is a right trapezoid, the output shaft of the handheld motor will press the inclined surface of the moving block 11, thereby driving the moving block 11 to move on the first fixed column 10. The moving block 11 drives the moving block 12 to move, compressing the first spring 13. At the same time, the movement of the moving block 12 drives the moving column 15 to move on the second fixed column 14, thereby driving the toothed block 16 away from the gear 9 and releasing the restriction on the gear 9. At this time, the take-up column 8 can rotate. After the output shaft of the handheld motor is connected to the take-up column 8, the handheld motor is started, which will drive the take-up column 8 to rotate, thereby driving the first rotating column 3 to rotate and release the wound rope 4. After it is completely released, the handheld motor is taken out, and the moving block 11 returns to its original position under the action of the first spring 13. Similarly, the toothed block 16 returns to its original position and continues to limit the gear 9. The first rotating column 13 no longer rotates and remains stable.

[0059] When the connecting block 21 on the rope 4 is placed into the connecting groove, because the cross section of the locking block 20 is a right trapezoid, the connecting block 21 will press the inclined surface of the locking block 20 during the insertion process, thereby pressing the locking block 20 into the placement groove 18 and compressing the second spring 19. When the connecting block 21 is completely placed into the connecting groove, the positions of the locking block 20 and the locking groove 22 correspond. Under the action of the second spring 19, the locking block 20 is locked into the locking groove 22, and the connection is completed.

[0060] Turning handle 27 causes the worm gear 26 to rotate, which in turn drives the transmission column 28 to rotate via the worm wheel. The transmission column 28 then drives the second rotating column 6 to rotate, winding the rope 4 and tightening it. This allows for climbing and maintenance, while also reducing the swaying of the rope 4 and ensuring safety.

[0061] After the climbing inspection is completed, turn the handle 27 to unwind the rope 4, then press the button 23. The button 23 drives the locking block 20 out of the slot 22 via the connecting rod 24. Then, move the connecting block 21 out of the connecting slot to disconnect the connection. Finally, use the handheld motor to drive the winding column 8 to rotate, thereby winding and winding the rope 4 to protect it and prevent it from being left in the external environment for a long time, which would affect the service life of the rope 4. Example

[0062] The difference between this embodiment and embodiment one is that a connecting groove is provided on the winding column 8, and the connecting groove is compatible with the output shaft of the handheld motor.

[0063] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A suspended ladder structure for bridge deck construction, movably mounted on the bridge deck (101), characterized in that, include: The support frame (102), suspension device (103), suspension longitudinal beam (104), walking device (105), and counterweight (106) are provided. The suspension longitudinal beam (104) is welded and fixed to the top of the support frame (102). The end of the suspension longitudinal beam (104) away from the support frame (102) is connected to the suspension device (103). The walking device (105) is connected to the four legs of the support frame (102). The counterweight (106) is placed on a platform a certain distance above the four legs of the support frame (102). A top seat (1) and a base (2), wherein the top seat (1) and the base (2) are respectively disposed at the top and bottom of the suspension device (103); The first rotating column (3) is rotatably installed inside the top seat (1); One end of the rope (4) is fixedly installed on the rotating column (3); The pedal (5) is fixedly installed on the rope (4); A winding assembly is located on one side of the top seat (1); it is used to drive the first rotating column (3) to rotate and wind up the rope (4); The second rotating column (6) is rotatably installed inside the base (2); A connecting component is provided on the second rotating column (6) for connecting to the rope (4); A rotating component is located on one side of the base (2) and is used to drive the second rotating column (6) to rotate.

2. The suspended ladder structure for bridge deck construction according to claim 1, characterized in that, The suspension device (103) includes: The upper crossbeam (1031) is welded to the end of the suspension longitudinal beam (104); Chain hoist (1034) is hinged to the upper crossbeam (1031) via a base; The hanger (1033) is anchored at one end to the top of the upper crossbeam (1031); The lower crossbeam (1032) has the other end of the hanger (1033) anchored on the lower crossbeam (1032), and the top seat (1) and the base (2) are respectively set on the upper crossbeam (1031) and the lower crossbeam (1032).

3. The suspended ladder structure for bridge deck construction according to claim 2, characterized in that, The winding assembly includes a winding box (7) disposed on one side of the top seat (1), one end of the first rotating column (3) extends into the winding box (7) and is fixedly installed with a winding column (8); a gear (9) is sleeved on the winding column (8), a first fixed column (10) is disposed on the inner wall of the winding box (7), and a moving block (11) is slidably installed on the first fixed column (10); a moving frame (12) is fixedly installed on one side of the moving block (11), and one end of a first spring (13) is fixedly installed on the moving frame (12), and the other end of the first spring (13) is fixedly installed on the inner wall of the winding box (7).

4. The suspended ladder structure for bridge deck construction according to claim 3, characterized in that, A second fixed column (14) is fixedly installed on the inner wall of the winding box (7), and a movable column (15) is slidably installed on the second fixed column (14). The movable column (15) is fixedly connected to the movable frame (12), and a toothed block (16) that cooperates with the gear (9) is fixedly installed on the movable column (15).

5. The suspended ladder structure for bridge deck construction according to claim 4, characterized in that, The connecting assembly includes a connecting seat (17) on a second rotating column (6), and a connecting groove is provided on the connecting seat (17). A placement groove (18) is provided on the inner wall of the connecting groove, and one end of a second spring (19) is provided on the inner wall of the placement groove (18). A locking block (20) is fixedly installed on the other end of the second spring (19). A connecting block (21) is provided in the connecting groove, and the connecting block (21) is fixedly installed on the rope (4). A locking groove (22) that cooperates with the locking block (20) is provided on the connecting block (21).

6. The suspended ladder structure for bridge deck construction according to claim 5, characterized in that, A button (23) is slidably mounted on the connecting seat (17), and the button (23) is connected to a connecting rod (24) that is fixedly connected to the card block (20).

7. A suspended ladder structure for bridge deck construction according to claim 6, characterized in that, The rotating assembly includes a rotating seat (25) disposed on one side of the base (2), and a worm gear (26) is rotatably installed inside the rotating seat (25). A handle (27) is fixedly installed on the worm gear (26), and a worm wheel is meshed on the worm gear (26). A transmission column (28) is fixedly installed on the worm wheel, and the transmission column (28) is fixedly connected to the second rotating column (6).