Spider type hanging basket

By using a spider-like suspended platform design, and by combining the platform lifting mechanism with the hooks and brackets, the safety hazards and structural damage problems of rust removal and painting operations on railway bridge pedestrian walkways were solved, achieving efficient and safe construction results.

CN224133554UActive Publication Date: 2026-04-17QINHUANGDAO PUBLIC WORKS SECTION OF CHINA RAILWAY BEIJING BUREAU GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINHUANGDAO PUBLIC WORKS SECTION OF CHINA RAILWAY BEIJING BUREAU GRP CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In the existing technology, the rust removal and painting of pedestrian walkways on railway bridges pose safety hazards, are cumbersome and inefficient, and frequent lifting of the walkway slabs can damage the structure, especially at the connection between the bracket and the beam, which is difficult to maintain effectively.

Method used

The spider-type suspended platform is used. The platform is moved and its position is adjusted by hooking the lifting mechanism and the hook at the bottom of the sidewalk slab. This avoids lifting the sidewalk slab for operation. The hoisting motor and hoisting cable are used to raise and lower the platform and switch its position.

Benefits of technology

It simplifies the construction process, reduces construction costs, improves work quality and safety, reduces structural damage and blind spots, and improves work efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spider type hanging basket which is characterized in that a plurality of hanging basket lifting mechanisms are evenly and fixedly arranged on the upper portion of a hanging basket body, each hanging basket lifting mechanism comprises a winch motor arranged on the hanging basket body, and a driving shaft of each winch motor is connected with a winch roller. Each winding roller is wound with a winding cable, the free end of each winding cable is fixedly provided with a clamping hook, and the clamping hooks are matched with a bracket at the bottom of a sidewalk foot plank in a hooking mode. According to the utility model, the bracket at the bottom of the walkway foot plank is derusted and painted, the construction is simple and convenient, the construction period is saved, the construction cost is reduced, and the operation quality is improved. Besides, the inspection, maintenance and other operations can be carried out on the beam body under the bridge, the sidewalk walking plate does not need to be opened, the structural damage caused by the lifting of the sidewalk plate is avoided, the operation blind area of the operation personnel is reduced, and the operation quality is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of maintenance technology for pedestrian walkway brackets on railway bridges, and in particular to a spider-type suspended basket. Background Technology

[0002] The pedestrian walkways on railway bridges are made of reinforced concrete and are laid in a full-coverage manner on a support platform formed by brackets. Due to train vibrations and the passage of workers, the concrete walkways are prone to slight displacement and misalignment on the brackets. Long-term friction from the concrete, coupled with rain, sun exposure, and oxidation, easily damages the anti-corrosion coating on the bracket surface. If routine maintenance such as rust removal and painting is not performed promptly, the corrosion continues to develop, eventually causing the brackets to crack. Serious quality problems with the bridge walkways and brackets seriously endanger the personal safety of workers on the bridge. Therefore, regular rust removal and painting of the bracket surface are necessary. Currently, the rust removal and painting work for the bottom of the pedestrian walkways, which involves peeling up the walkway slabs in the work area, is mainly done by lifting them up. This method poses safety hazards for workers, is cumbersome and laborious, and has low efficiency. Over time, frequent lifting of the walkway slabs will inevitably damage the structure. When workers lift the walkway slabs on the bridge, they have to bend over, as... Figure 1 As shown, the bracket is triangular and rests against the beam. It is difficult to remove rust and paint at the angle between the hypotenuse and the vertical side, and there is a downward viewing angle and blind spot for the workers. Utility Model Content

[0003] The purpose of this utility model is to provide a spider-type suspended platform for rust removal and painting of pedestrian walkways, thereby solving the technical problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] This utility model discloses a spider-type suspended platform, including a platform body. Multiple platform lifting mechanisms are uniformly fixed on the upper part of the platform body. Each platform lifting mechanism includes a winch motor mounted on the platform body. The drive shaft of each winch motor is connected to a winch roller. A winch cable is wound around each winch roller. A hook is fixedly mounted on the free end of each winch cable. The hook engages with a bracket hook at the bottom of the sidewalk slab.

[0006] Furthermore, multiple mounting beams are fixedly installed at even intervals on the upper part of the suspended platform body, and each of the hoisting motors is fixedly installed on the corresponding mounting beam.

[0007] Furthermore, each of the mounting beams has two mounting seats symmetrically fixed at both ends of its upper part, and each of the hoisting motors is fixedly mounted on the upper part of each of the mounting seats.

[0008] Furthermore, each of the hooks includes a buckle body with a U-shaped cross-section, and a limiting protrusion is fixedly provided on the inner side of the upper end of the buckle body.

[0009] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0010] This invention provides a simple, time-saving, cost-effective, and high-quality method for rust removal, painting, and maintenance of the support structure at the bottom of pedestrian walkways. Furthermore, it allows for inspection and maintenance of the bridge structure from under the bridge without removing the pedestrian walkway slabs, thus avoiding structural damage and reducing blind spots for workers, further improving overall work quality. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the disjointed structure of a pedestrian walkway slab in the background art;

[0013] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the suspended platform lifting mechanism of this utility model;

[0015] Figure 4 This is a schematic diagram of the hook structure of this utility model;

[0016] Figure 5 This is a schematic diagram of the telescopic rod structure used in this utility model;

[0017] Explanation of reference numerals in the attached drawings: 1. Suspended basket body; 2. Winch motor; 3. Mounting beam; 4. Mounting base; 5. Winch roller; 6. Winch cable; 7. Hook; 7-1. Buckle body; 7-2. Limiting protrusion. Detailed Implementation

[0018] like Figures 2-4 As shown, a spider-style suspended platform includes a platform body 1, which is 4.4m long, 0.8m wide, and 1m deep. It is assembled from smaller suspended platforms, each 2.2m long, and the total weight of the platform is 356kg. The platform uses Q235B steel pipes, with each section connected by high-strength bolts. The base plate is made of 1.5mm perforated mesh.

[0019] Multiple lifting mechanisms are uniformly fixedly arranged on the upper part of the suspended platform body 1. Each lifting mechanism includes a winch motor 2 mounted on the suspended platform body 1. In this embodiment, multiple mounting beams 3 are uniformly spaced and fixedly arranged on the upper part of the suspended platform body 1, and each winch motor 2 is fixedly mounted on the upper ends of the corresponding mounting beam 3. Specifically, two mounting seats 4 are symmetrically fixedly arranged on the upper ends of each mounting beam 3, and each winch motor 2 is fixedly mounted on the upper part of each mounting seat 4.

[0020] Each of the hoisting motors 2 has a drive shaft connected to a hoisting roller 5, and a hoisting cable 6 is wound around each of the hoisting rollers 5. A hook 7 is fixedly provided at the free end of each of the hoisting cables 6, and the hook is engaged with the bracket hook at the bottom of the sidewalk slab.

[0021] Each of the hooks 7 includes a hook body 7-1 with a U-shaped cross section. A limiting protrusion 7-2 is fixedly provided on the inner side of the upper end of the hook body 7-1. In actual application, the hook body 7-1 is hooked and engaged with the bracket at the bottom of the pedestrian walkway, and the limiting protrusion 7-2 can prevent the hook 7 from detaching from the bracket on its own.

[0022] In practical applications, this utility model employs, as follows: Figure 5 The telescopic rod shown hooks each of the hooks 7 onto the brackets at the bottom of the sidewalk slab. After multiple hooks 7 are hooked, the operator enters the suspended platform body 1. The hoisting motors retract the winch cable, raising the suspended platform body. The operator can then perform rust removal and painting work on the corresponding brackets. After maintenance of that bracket is completed, the operator uses the telescopic rod to hook some of the hooks onto the brackets at the next working position. Then, in conjunction with the hoisting motors, the hoisting cable is retracted and extended to move the suspended platform body. This process is similar to the movement mechanism of Spider-Man in the movies, allowing for the switching and adjustment of the working position.

[0023] This invention provides a simple, time-saving, cost-effective, and high-quality method for rust removal, painting, and maintenance of the support structure at the bottom of pedestrian walkways. Furthermore, it allows for inspection and maintenance of the bridge structure from under the bridge without removing the pedestrian walkway slabs, thus avoiding structural damage and reducing blind spots for workers, further improving overall work quality.

[0024] It is important to note that workers must wear safety helmets, high-altitude safety harnesses, work gloves, and walkie-talkies. Life jackets are mandatory for water-related operations. When initially attaching the hook to the bracket, its secureness and reliability must be checked. The quality of the bracket must also be checked when moving the suspended platform and changing the hook's position. Workers' safety belts must be attached to a secure bracket, not just to the suspended platform itself. Furthermore, there must be no uneven loading or concentrated stacking of materials. If such situations are discovered, materials should be immediately and evenly distributed across the suspended platform.

[0025] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A spider basket, characterized by: The device includes a suspended platform body, on the upper part of which multiple suspended platform lifting mechanisms are uniformly fixed. Each suspended platform lifting mechanism includes a winch motor mounted on the suspended platform body. The drive shaft of each winch motor is connected to a winch roller. Each winch roller is wound with a winch cable. The free end of each winch cable is fixedly provided with a hook. The hook engages with a bracket hook at the bottom of the pedestrian walkway slab.

2. The spider basket of claim 1, wherein: Multiple mounting beams are fixedly installed at even intervals on the upper part of the suspended platform body, and each of the hoisting motors is fixedly installed on the corresponding mounting beam.

3. The spider basket of claim 2, wherein: Each of the mounting beams has two mounting seats fixedly installed symmetrically at both ends of its upper part, and each of the hoisting motors is fixedly installed on the upper part of each of the mounting seats.

4. The spider basket of claim 1, wherein: Each of the hooks includes a buckle body with a U-shaped cross-section, and a limiting protrusion is fixedly provided on the inner side of the upper end of the buckle body.