Aerial work ladder cage and safety overhaul channel system

By designing a high-altitude work ladder cage with detachable connecting cage sections and crossbars, the problem of cumbersome disassembly of existing ladder cages has been solved, improving the flexibility and safety of construction and reducing the difficulty of construction.

CN122014030APending Publication Date: 2026-05-12SHAZC GRP CORP LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAZC GRP CORP LTD
Filing Date
2026-03-13
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing ladder cages are cumbersome to disassemble during construction, which increases the cost of use and makes them difficult to adjust flexibly, resulting in high construction difficulty and insufficient safety.

Method used

Design an aerial work platform cage comprising multiple detachable and connectable cage sections and crossbars, combined with a protective net and grounding components, fixedly connected to the building via the crossbars, and equipped with a ladder for easy maintenance.

Benefits of technology

It enables convenient assembly and disassembly of the ladder cage, improves the flexibility and safety of use, reduces the difficulty of construction and ensures the stability of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a high-altitude operation ladder cage and a safety overhaul channel system, and relates to the technical field of building construction, the high-altitude operation ladder cage comprises a body, the body comprises a plurality of cage sections which can be detachably connected and communicated in sequence in the vertical direction, each cage section is internally provided with a cage ladder, and each cage section is externally provided with a protective net; the body further comprises a plurality of transverse rods, one end of each transverse rod is detachably connected with the cage section, and the other end is used for being connected with a building. According to the high-altitude operation ladder cage and the safety overhaul channel system, construction is facilitated, and safety and stability are guaranteed.
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Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a high-altitude work ladder cage and a safety maintenance passage system. Background Technology

[0002] In the current model, fully enclosed sound barriers are generally constructed inside the road. However, due to limited internal conditions, construction is required on the outside of the fully enclosed sound barrier, which is difficult and high-risk. Therefore, ladder cages are needed for the operation. However, the ladder cages currently used on construction sites are usually constructed by welding steel pipes, which is not easy to disassemble. After construction, the ladder cages need to be destructively disassembled, which is cumbersome, increases the cost of use, and is inconvenient to use. Summary of the Invention

[0003] The purpose of this invention is to provide a high-altitude work ladder cage and safety maintenance access system to solve the problems existing in the prior art, facilitate construction, and ensure safety and stability.

[0004] To achieve the above objectives, the present invention provides the following solution: The present invention provides a high-altitude work ladder cage, including a body, the body including a plurality of cage sections that are detachably connected and communicate with each other in a vertical direction, each cage section is provided with a cage ladder, and each cage section is provided with a protective net; the body also includes a plurality of crossbars, one end of each crossbar being detachably connected to the cage section, and the other end being used to connect to the building.

[0005] Preferably, a door is provided on one side of the bottommost cage section.

[0006] Preferably, a circumferential guardrail is fixedly provided on the upper side of the topmost cage section.

[0007] Preferably, the bottommost cage section is provided with several supports circumferentially, and each support is detachably connected to the embedded parts of the concrete foundation.

[0008] Preferably, each cage section includes a plurality of circumferentially distributed columns and a platform fixedly connected to the plurality of columns; the protective netting is circumferentially covered around the periphery of the plurality of columns, and each platform is provided with a passageway; the upper and lower ends of the cage ladder are respectively connected to two vertically adjacent platforms; the columns of adjacent cage sections can be detached and connected.

[0009] Preferably, one end of each crossbar is detachably connected to the column via a channel steel.

[0010] Preferably, it further includes a grounding element, which is used for conductive connection between the body and the ground.

[0011] Preferably, the grounding component includes a grounding metal component and a wire, the grounding metal component is used to be installed on the ground, and the grounding metal component is electrically connected to the body through the wire.

[0012] Preferably, it also includes guy ropes, which are connected to the body and the ground.

[0013] The present invention also provides a safe maintenance access system, including a ladder and an aerial work platform cage as described above; the ladder is disposed above the aerial work platform cage and fixedly placed on one side of the sound barrier, and the top of the aerial work platform cage reaches the support beam platform.

[0014] The present invention achieves the following technical effects compared to the prior art: The aerial work platform cage provided by this invention is equipped with multiple detachable and connectable cage sections, which facilitates assembly and disassembly and allows for flexible adjustment according to the working height requirements, thus improving the flexibility of use. Each cage section is equipped with a cage ladder for easy climbing. The protective net enhances the safety protection performance. In order to further improve the stability of the entire cage, several vertically distributed crossbars are set to fix the corresponding cage sections to the adjacent buildings.

[0015] The safety maintenance access system provided by this invention uses a high-altitude work ladder cage to allow maintenance personnel to climb to the support beam platform of the track where the sound barrier is located, and then uses a ladder fixed to the side of the sound barrier to allow the inspection personnel to reach the top of the sound barrier for maintenance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments 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.

[0017] Figure 1 A schematic diagram of a cage section provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the arrangement of the aerial work ladder cage provided in Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the installation of the lowest-level platform provided in Embodiment 1 of the present invention; Figure 4 for Figure 3 Installation diagram of the basic platform; Figure 5 for Figure 4 A schematic diagram of the installation of the next-layer platform; Figure 6 for Figure 5 Schematic diagram of the installation of the cage ladder on the foundation; Figure 7 for Figure 6 Schematic diagram of the installation of the handrail of the cage ladder on the foundation; Figure 8 for Figure 7 A schematic diagram of the installation of the protective netting on the foundation; Figure 9 for Figure 8 A schematic diagram of the basic door opening and closing mechanism; Figure 10 This is a schematic diagram of the layout of the safety maintenance passage system provided in Embodiment 2 of the present invention.

[0018] In the diagram: 1-body; 11-cage section; 12-cage ladder; 121-handrail; 13-protective net; 14-crossbar; 15-opening door; 16-support; 17-column; 18-platform; 19-channel steel; 2-grounding component; 21-grounding metal component; 22-wire; 3-ladder; 4-sound barrier; 5-support beam platform. Detailed Implementation

[0019] 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.

[0020] The purpose of this invention is to provide a high-altitude work ladder cage and safety maintenance access system to solve the problems existing in the prior art, facilitate construction, and ensure safety and stability.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 This embodiment provides a high-altitude work ladder cage; please refer to [link / reference]. Figures 1-10 The system includes a main body 1, which includes several cage sections 11 that are detachably connected and communicate with each other in a vertical direction. Each cage section 11 is equipped with a cage ladder 12 and a protective net 13 is provided on the outside of each cage section 11. The main body 1 also includes several crossbars 14, one end of which is detachably connected to the cage section 11, and the other end is used to connect to the building.

[0023] The system incorporates multiple detachable cage sections 11, facilitating assembly and disassembly, and allowing for flexible adjustments based on operational height requirements, thus enhancing usability. Each cage section 11 is equipped with a cage ladder 12 for easy climbing. A protective net 13 enhances safety performance. To further improve the stability of the entire cage, several vertically distributed crossbars 14 are installed to securely connect the corresponding cage section 11 to adjacent structures, such as support piers on the underside of the tunnel.

[0024] In the optional scheme of this embodiment, more preferably, a switch door 15 is provided on one side of the bottommost cage section 11.

[0025] Among them, a lockable and unlockable door 15 is installed on one side of the bottom cage section 11 to meet the safety requirements of the construction site.

[0026] In the optional scheme of this embodiment, more preferably, a circumferential guardrail is fixedly provided on the upper side of the topmost cage section 11.

[0027] The circumferential guardrail provides further protection for maintenance personnel climbing to the top. Specifically, the circumferential guardrail can be integrated with the columns 17 on the top platform 18. The circumferential guardrail has entrances and exits, and the top of the entrances and exits can be connected by support rods to fully enhance stability.

[0028] In the optional scheme of this embodiment, more preferably, the bottommost cage section 11 is provided with a number of supports 16 around its circumference, and each support 16 can be detachably connected to the embedded parts of the concrete foundation.

[0029] Before pouring the concrete foundation, anchor bolts should be pre-embedded. C20 concrete should be used. The anchor bolts should be inserted into the pre-embedded steel plates with holes, ensuring that the bolts protrude 10cm from the surface of the steel plates. They should be fixed by electric welding. When pouring concrete, the steel plates and anchor bolts should be pre-embedded to form the concrete foundation. Each support 16 should be installed on the pre-embedded anchor bolts for fixation.

[0030] In the optional scheme of this embodiment, more preferably, each cage section 11 includes a plurality of circumferentially distributed columns 17 and a platform 18 fixedly connected to the plurality of columns 17; the protective net 13 is circumferentially covered on the outer periphery of the plurality of columns 17, and each platform 18 is provided with a passageway for people to pass through. The upper and lower ends of the cage ladder 12 are respectively connected to two vertically adjacent platforms 18; the columns 17 of adjacent cage sections 11 can be detached and connected.

[0031] The cage ladders 12 in adjacent cage sections 11 are staggered and connected by passageways on the platform 18 for climbing. The cage ladders 12 are fixed to the platform 18 with bolts. Correspondingly, the uprights 17 are connected to each other and to the platform 18 with bolts. The protective netting 13 covers the circumference to fully enhance the safety protection performance.

[0032] In the optional embodiments of this example, it is more preferred that one end of each crossbar 14 is detachably connected to the column 17 via a channel steel 19.

[0033] One end of the crossbar 14 is fixedly connected to one side of the building, and the other end is bolted to the column 17 through the channel steel 19 that wraps around the column 17. Furthermore, multiple crossbars 14 can be set at the same height and connected and fixed to multiple columns 17.

[0034] In the optional scheme of this embodiment, more preferably, the high-altitude work ladder cage provided in this embodiment also includes a grounding component 2, which is used to electrically connect the body 1 and the ground.

[0035] Among them, by setting grounding component 2 to connect body 1 to the ground, it plays a role in grounding protection, and the grounding resistance value is not greater than 30Ω.

[0036] In the optional scheme of this embodiment, more preferably, the grounding component 2 includes a grounding metal component 21 and a wire 22. The grounding metal component 21 is used to be installed on the ground, and the grounding metal component 21 is electrically connected to the body 1 through the wire 22.

[0037] Among them, the grounding metal part 21 is set as a 2.5m long hot-dip galvanized round steel. One end of the grounding metal part 21 is driven vertically into the ground and connected to the main body 1 of the ladder cage with a wire 22 to achieve grounding protection.

[0038] In the optional embodiments of this example, more preferably, the aerial work cage provided in this example also includes guy ropes, which are connected to the body 1 and the ground.

[0039] Among these measures, the installation of guy ropes can further enhance the overall support stability of the cage.

[0040] Specifically, the construction method of a high-altitude work ladder cage provided in this embodiment is as follows: Figures 3-9 As shown: a uniform box-type cage section 11 is used, and a cage section 11 is set on one side of the pier body. Each cage section 11 is 2 meters high. 1) Pouring foundation concrete Choose a reasonable installation location on the side of the pier facing the access road. Compact the installation foundation of cage section 11. Before pouring the foundation, anchor bolts should be pre-embedded. The foundation of the ladder cage should be made of C20 concrete. Insert the anchor bolts into the pre-embedded steel plates with holes, ensuring that the bolts protrude 10cm from the surface of the steel plate. Fix them by electric welding. When pouring concrete, embed the steel plates and anchor bolts in the corresponding positions in the uncured concrete, ensuring that the upper surface of the steel plate and the concrete surface are kept at the same level.

[0041] 2) Cage section assembly After the foundation reaches the design strength requirements, the support 16 is fixed with pre-embedded anchor bolts. Installation is carried out using a crane according to site conditions. The bottom platform 18 is installed on the support 16, and after leveling, the bolts are tightened. Note: The bolts should be pre-inserted and tightened only after the lower platform 18 is connected to the upper part of the column 17 and leveled. Install the four uprights 17 onto the platform 18 using high-strength bolts. Note: First, pre-thread the bolts. After the lower platform 18 is connected to the upper part of the uprights 17 and leveled, tighten the bolts. Subsequent sections should be installed layer by layer as needed. After each section is installed, the connecting bolts must be tightened before installing the next section. The installation height should be controlled 2-4 meters above the working surface. During installation, ensure the verticality of the uprights 17 is within one-thousandth. Install the second-floor platform 18 on top of the four columns 17, adjust for levelness, and then tighten the bolts. Note: Insert the bolts first, and then tighten them only after the lower platform 18 is connected to the upper part of the columns 17 and adjusted for levelness. The cage ladder 12 is installed between the upper and lower platforms 18 by bolts, and the handrail 121 of the cage ladder 12 is installed on the inside of the cage ladder 12. After installing the side safety net 13, finally install the lower opening and closing door 15; Repeat the above steps until the working height is reached; the main load-bearing member column 17 of the cage section 11 must be connected to the building via a crossbar 14 every 4-6 meters, and guy ropes must be installed; after reaching the predetermined height, a circumferential guardrail will be erected; at least one connecting rod is required at the top of the guardrail entrance; the grounding metal part 21 is made of 2.5m long hot-dip galvanized round steel, one end of the grounding metal part 21 is driven vertically into the ground, and connected to the main body of the cage with a wire 22, and the grounding resistance value is not greater than 30Ω.

[0042] Example 2 This embodiment provides a safe maintenance access system. Please refer to [link / reference]. Figure 10 It includes a climbing ladder 3 and a high-altitude work ladder cage as in Embodiment 1; the climbing ladder 3 is set above the high-altitude work ladder cage and fixed on one side of the sound barrier 4, and the top of the high-altitude work ladder cage reaches the support beam platform 5.

[0043] The maintenance personnel are able to climb from the bottom of the pier to the support beam platform 5 of the track where the sound barrier 4 is located by using the high-altitude working ladder cage. Then, the inspection personnel can reach the top of the sound barrier 4 by using the climbing ladder 3 fixed on the side of the sound barrier 4 for inspection.

[0044] Furthermore, elevated work cages can be installed on both sides of the pier, allowing personnel to access the support beam platform 5. Through the support beam platform 5 and the ladders 3 of the already installed upper sound barrier 4, personnel can access the top maintenance platform of the sound barrier 4. Construction can then be carried out at the high bolt connection locations using a lifting platform.

[0045] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A high-altitude work ladder cage, characterized in that: The system includes a main body (1), which includes several cage sections (11) that are detachably connected and interconnected in a vertical direction. Each cage section (11) is provided with a cage ladder (12) and each cage section (11) is provided with a protective net (13). The main body (1) also includes several crossbars (14), one end of which is detachably connected to the cage section (11), and the other end is used to connect to the building.

2. The aerial work platform cage according to claim 1, characterized in that: A door (15) is provided on one side of the bottommost cage section (11).

3. The aerial work platform cage according to claim 1, characterized in that: A circumferential guardrail is fixedly installed on the upper side of the topmost cage section (11).

4. The aerial work platform cage according to claim 1, characterized in that: The bottommost cage section (11) is provided with several supports (16) circumferentially, and each support (16) can be detachably connected to the embedded part of the concrete foundation.

5. The aerial work platform cage according to claim 1, characterized in that: Each cage section (11) includes several circumferentially distributed columns (17) and a platform (18) fixedly connected to the columns (17); the protective net (13) is circumferentially covered around the columns (17), and each platform (18) is provided with a passageway; the upper and lower ends of the cage ladder (12) are respectively connected to two vertically adjacent platforms (18); the columns (17) of adjacent cage sections (11) can be detached and connected.

6. The aerial work platform cage according to claim 5, characterized in that: One end of each of the crossbars (14) is detachably connected to the column (17) via a channel steel (19).

7. The aerial work platform cage according to claim 1, characterized in that: It also includes a grounding element (2), which is used to electrically connect the body (1) and the ground.

8. The aerial work platform cage according to claim 7, characterized in that: The grounding component (2) includes a grounding metal component (21) and a wire (22). The grounding metal component (21) is used to be installed on the ground. The grounding metal component (21) is electrically connected to the body (1) through the wire (22).

9. The aerial work platform cage according to claim 1, characterized in that: It also includes guy ropes, which are connected to the body (1) and the ground.

10. A safe maintenance access system, characterized in that: Includes a climbing ladder (3) and a high-altitude work ladder cage as described in any one of claims 1-9; the climbing ladder (3) is located above the high-altitude work ladder cage and is fixedly placed on one side of the sound barrier (4), and the top of the high-altitude work ladder cage reaches the support beam platform (5).