A ladder cage structure

By incorporating connecting rod assemblies, rotating shafts, positioning components, and guy ropes into the ladder cage structure, the stability and safety issues between the ladder cage and the cap beam support were resolved, achieving reliable connection and efficient construction of the ladder cage.

CN224549736UActive Publication Date: 2026-07-24ZHEJIANG FUANLAI CONSTR UPHOLSTERY DESIGN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG FUANLAI CONSTR UPHOLSTERY DESIGN CO LTD
Filing Date
2025-09-05
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The lack of effective connection between the traditional ladder cage and the cap beam support results in poor stability, low safety, and limited functionality, affecting construction efficiency and the convenience of personnel passage.

Method used

The ladder cage is connected to the cap beam template and support columns by setting up connecting rod assemblies, and a connecting ladder with a rotating shaft is set on one side of the cage body to enhance stability and safety; positioning parts are used to fix the connecting ladder to the cast-in-place cap beam, and stair components and fixed trusses are set up to improve overall rigidity; guy ropes are used to enhance wind resistance.

Benefits of technology

It improves the overall stability and safety of the ladder cage, reduces intermediate transfer links, enhances the passage efficiency and safety of construction personnel, and ensures the reliability of connections and the efficiency of construction.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224549736U_ABST
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Abstract

A kind of ladder cage structure, it is arranged in the side of bent cap support, including base and cage body, cage body is fixedly arranged on base, bent cap support includes horizontal plate and support column, horizontal plate upper end is equipped with bent cap formwork, cage body is close to the side of bent cap support and is provided with connecting rod assembly, connecting rod assembly includes first connecting rod, second connecting rod and connecting platform, one end of first connecting rod is fixedly arranged on cage body, the other end is fixedly connected on bent cap formwork, one end of second connecting rod is fixedly arranged on cage body, the other end is fixedly arranged on support column;Guardrail is arranged on the side of horizontal plate, and connecting platform is fixedly arranged between cage body and guardrail;The utility model connects ladder cage with bent cap formwork and support column by setting connecting rod assembly respectively, enhances the overall stability of ladder cage and the synergy with support, improves construction safety.
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Description

Technical Field

[0001] This utility model relates to the technical field of bridge construction, and in particular to a ladder cage structure. Background Technology

[0002] In bridge construction, the pouring of cap beams often requires the erection of cap beam scaffolding to support the formwork and construction loads. To facilitate the movement of construction personnel and materials, a ladder cage structure is usually installed on one side of the scaffolding. Traditional ladder cages are mostly set up independently, lacking an effective connection with the cap beam scaffolding, resulting in poor stability and low safety. Especially during high-altitude operations, the asynchronous swaying between the ladder cage and the scaffolding can easily lead to loosening or even detachment of the connection points, posing a significant safety hazard. In addition, existing ladder cage structures have a single function, often failing to consider the rigid connection between the ladder cage and the cap beam formwork or support columns, and lacking an effective transition platform, affecting construction efficiency and personnel accessibility. Utility Model Content

[0003] In view of the shortcomings and defects of the existing technology, a ladder cage structure is provided. In order to achieve the purpose of reliable, safe and efficient connection of ladder cage, the present invention provides the following technical solution.

[0004] A ladder cage structure is disposed on one side of a cap beam support, including a base and a cage body. The cage body is fixedly disposed on the base. The cap beam support includes a horizontal plate and a support column. A cap beam template is installed on the upper end of the horizontal plate. A connecting rod assembly is disposed on the side of the cage body near the cap beam support. The connecting rod assembly includes a first connecting rod, a second connecting rod, and a connecting platform. One end of the first connecting rod is fixedly disposed on the cage body, and the other end is fixedly connected to the cap beam template. One end of the second connecting rod is fixedly disposed on the cage body, and the other end is fixedly disposed on the support column. Guardrails are disposed on both sides of the horizontal plate, and the connecting platform is fixedly disposed between the cage body and the guardrails.

[0005] Compared with the prior art, this utility model enhances the overall stability of the ladder cage and its coordination with the support frame by setting a connecting rod assembly to connect the ladder cage to the cap beam formwork and the support column respectively, thereby improving construction safety.

[0006] Furthermore, a cast-in-place cap beam is poured between the cap beam templates, and a connecting ladder is provided at the upper end of the ladder cage, which is positioned towards the cast-in-place cap beam. A rotating shaft is provided on the side of the connecting ladder near the cage body. The rotating shaft includes a hook, which is fixedly mounted on the ladder cage. The connecting ladder rotates around the rotating shaft.

[0007] Through the above improvements, by setting a rotating shaft on one side of the cage, the connecting ladder is made rotatable, which makes it easier for construction personnel to directly enter the cap beam working surface from the ladder cage, reducing transfer links and improving traffic efficiency.

[0008] Furthermore, a fixing protrusion is provided at the upper end of the cast-in-place cover beam, and a positioning component is provided between the connecting ladder and the fixing protrusion. The positioning component includes a positioning rod and a positioning ring. The positioning rod and the positioning ring are integrally formed. The positioning rod is fixedly set on the connecting ladder, and the positioning ring is sleeved on the fixing protrusion. An extension block is provided on one side of the positioning rod, and a positioning block is provided on the positioning ring. The extension block and the positioning block are fixedly connected by a tie rod. One end of the tie rod is fixedly set inside the positioning block, and the other end is set to cooperate with the extension block by a bolt.

[0009] Through the above improvements, the connecting ladder is reliably connected to the fixing protrusion on the cast-in-place cap beam by the positioning component, which further enhances the fixing effect of the connecting ladder, prevents it from shifting or shaking during use, and ensures construction safety.

[0010] Furthermore, the cage body includes several parallel shelves and several vertical bars, with fixed trusses intersecting between the vertical bars, and stair components between the shelves.

[0011] Through the above improvements, the combination of shelves and vertical bars makes the internal structure of the cage clear, and the staircase facilitates the movement of construction workers up and down; in addition, the fixed truss between the vertical bars enhances the overall rigidity and stability of the cage.

[0012] Furthermore, a first limiting block is provided on the side of the first connecting rod near the cage body, the first limiting block abuts against the vertical rod, and a mating plate is provided on the side of the first connecting rod away from the cage body. The side plate of the cap beam template is an I-beam plate, and the mating plate abuts against the side plate of the cap beam template and is fixedly connected by a fixing screw.

[0013] Through the above improvements, the matching arrangement of the first limiting block and the vertical rod on the cage body makes the connection between the first connecting rod and the cage body more stable, and the connection between the mating plate and the cover beam template more secure, preventing loosening. Moreover, the connection through the fixing screw makes disassembly and assembly convenient and easy to reuse.

[0014] Furthermore, a second limiting block is provided on the side of the second connecting rod near the cage body, the second limiting block abuts against the vertical rod, and a clamping member is provided on the side of the second connecting rod away from the cage body, the clamping member is clamped on the support column, and the second limiting block and the clamping member are integrally provided at both ends of the second connecting rod.

[0015] Through the above improvements, the design of the clamp allows the second connecting rod to adapt to support columns of different diameters, enhancing its versatility; the second limiting block is integrated with the clamp, resulting in a compact structure, convenient installation, and reliable connection.

[0016] Furthermore, a guy rope is provided on the side of the cage away from the cover beam support, with one end of the guy rope connected to the cage and the other end fixed to the ground.

[0017] Through the above improvements, the installation of guy ropes further enhances the wind resistance and overall stability of the cage, thereby improving safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a ladder cage structure; Figure 2 This is a partially enlarged schematic diagram of point A in a ladder cage structure. Figure 3 This diagram illustrates the connection relationship between the connecting ladder and the fixed protrusion in a ladder cage structure.

[0019] The components include: 1. Cap beam support; 1.1. Horizontal plate; 1.11. Guardrail; 1.2. Support column; 2. Base; 3. Cage body; 3.1. Connecting ladder; 3.2. Rotating shaft; 3.3. Shelf; 3.4. Vertical rod; 3.5. Fixed truss; 3.6. Staircase component; 3.7. Hook component; 4. Cap beam formwork; 4.1. Cast-in-place cap beam; 4.2. Fixed protrusion; 4.3. Positioning component; 4.31. Positioning clamp; 4.32. Extension block; 4.33. Positioning block; 4.34. Tie rod; 5. Connecting rod assembly; 5.1. First connecting rod; 5.11. First limiting block; 5.12. Matching plate; 5.13. Fixed screw; 5.2. Second connecting rod; 5.21. Second limiting block; 5.22. Clamp component; 6. Guy rope. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] like Figures 1 to 3The illustrated cage structure is located on one side of a cap beam support 1 and includes a base 2 and a cage body 3. The cage body 3 is fixedly mounted on the base 2. The cap beam support 1 includes a horizontal plate 1.1 and a support column 1.2. A cap beam template 4 is installed on the upper end of the horizontal plate 1.1. A connecting rod assembly 5 is provided on the side of the cage body 3 near the cap beam support 1. The connecting rod assembly 5 includes a first connecting rod 5.1, a second connecting rod 5.2, and a connecting platform. One end of the first connecting rod 5.1 is fixedly mounted on the cage body 3, and the other end is fixedly connected to the cap beam template 4. One end of the second connecting rod 5.2 is fixedly mounted on the cage body 3, and the other end is fixedly mounted on the support column 1.2. Guardrails 1.11 are provided on both sides of the horizontal plate 1.1, and the connecting platform is fixedly mounted between the cage body 3 and the guardrails 1.11.

[0023] A cast-in-place cap beam 4.1 is poured between the cap beam formwork 4. The upper end of the ladder cage is equipped with a connecting ladder 3.1 facing the cast-in-place cap beam 4.1. A rotating shaft 3.2 is provided on the side of the connecting ladder 3.1 near the cage body 3. The rotating shaft 3.2 includes a hook 3.7, which is fixedly installed on the ladder cage. The connecting ladder 3.1 rotates around the rotating shaft 3.2. By setting the rotating shaft 3.2 on one side of the cage body 3, the connecting ladder 3.1 is made rotatable, which facilitates construction personnel to directly enter the cap beam working surface from the ladder cage, reducing transfer links and improving passage efficiency. The connecting ladder 3.1 is fixedly installed on the cage body 3 through the hook 3.7, so that the rotating shaft 3.2 remains stable when the connecting ladder 3.1 rotates, preventing unstable connection from causing the connecting ladder 3.1 to shake, thus improving safety. The connecting ladder 3.1 rotates around the rotating shaft 3.2, and in its natural state, the connecting ladder 3.1 is in the lowered state.

[0024] A fixing protrusion 4.2 is provided on the upper end of the cast-in-place cap beam 4.1. A positioning component 4.3 is provided between the connecting ladder 3.1 and the fixing protrusion 4.2. The positioning component 4.3 includes a positioning ring 4.31 and positioning blocks 4.32 symmetrically arranged on both sides of the positioning ring 4.31. The positioning ring 4.31 is sleeved on the fixing protrusion 4.2. Extension blocks 4.33 are also symmetrically arranged on both sides of the connecting ladder 3.1. The extension blocks 4.33 and the positioning blocks 4.32 are fixedly connected by tie rods 4.34. One end of the tie rod 4.34 is fixedly set in the positioning block 4.32, and the other end is set on the extension block 4.33 by a nut. The positioning component 4.3 reliably connects the connecting ladder 3.1 and the fixing protrusion 4.2 on the cast-in-place cap beam 4.1, further enhancing the fixing effect of the connecting ladder 3.1, preventing displacement or shaking during use, and ensuring construction safety.

[0025] During fixing, the side of the positioning ring 4.32 away from the connecting ladder 3.1 always abuts against the fixing protrusion 4.2. Depending on the different models and sizes of the positioning protrusions and the connecting ladder 3.1, the positioning component 4.3 can be slightly adjusted horizontally by adjusting the relative position between the extension block 4.33 and the tie rod 4.34 to adapt to different models and sizes of cast-in-place cap beams 4.1.

[0026] The cage body 3 includes several parallel shelves 3.3 and several vertical rods 3.4. The combination of shelves 3.3 and vertical rods 3.4 makes the internal structure of the cage clear. Staircases 3.6 are provided between shelves 3.3 to facilitate the passage of construction personnel. The fixed trusses 3.5 provided between the vertical rods 3.4 enhance the overall rigidity and stability of the cage body 3.

[0027] A first limiting block 5.11 is provided on the side of the first connecting rod 5.1 near the cage body 3. The first limiting block 5.11 abuts against the vertical rod 3.4. The cooperation between the first limiting block 5.11 and the vertical rod 3.4 on the cage body 3 makes the connection between the first connecting rod 5.1 and the cage body 3 more stable.

[0028] The first connecting rod 5.1 has a mating plate 5.12 on the side away from the cage body 3. The side plate of the cap beam template 4 is an I-beam plate. The mating plate 5.12 abuts against the side plate of the cap beam template 4, making the connection between the mating plate 5.12 and the cap beam template 4 more secure and preventing loosening. It is also connected by a fixing screw 5.13, which makes it easy to disassemble and reassemble and convenient for reuse.

[0029] A second limiting block 5.21 is provided on the side of the second connecting rod 5.2 near the cage body 3. The second limiting block 5.21 abuts against the vertical rod 3.4, making the connection between the second connecting rod 5.2 and the cage body 3 more stable.

[0030] A clamp 5.22 is provided on the side of the second connecting rod 5.2 away from the cage body 3. The clamp 5.22 is clamped on the support column 1.2. The second limiting block 5.21 and the clamp 5.22 are integrally set at both ends of the second connecting rod 5.2. The design of the clamp 5.22 allows the second connecting rod 5.2 to adapt to support columns 1.2 of different diameters, enhancing its versatility. The second limiting block 5.21 and the clamp 5.22 are integrally set, resulting in a compact structure, convenient installation, and reliable connection.

[0031] To further improve the overall overturning resistance of the cage, a guy rope 6 is installed on the side of the cage body 3 away from the cap beam support 1. One end of the guy rope 6 is connected to the cage body 3, and the other end is fixed to the ground. The installation of the guy rope 6 further enhances the wind resistance and overall stability of the cage, and improves safety.

[0032] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A ladder cage structure, disposed on one side of a cap beam support (1), characterized in that: The system includes a base (2) and a cage (3). The cage (3) is fixedly mounted on the base (2). The cover beam support (1) includes a horizontal plate (1.1) and a support column (1.2). A cover beam template (4) is installed on the upper end of the horizontal plate (1.1). A connecting rod assembly (5) is provided on the side of the cage (3) near the cover beam support (1). The connecting rod assembly (5) includes a first connecting rod (5.1), a second connecting rod (5.2), and a connecting platform. One end of the first connecting rod (5.1) is fixedly mounted on the cage (3), and the other end is fixedly connected to the cover beam template (4). One end of the second connecting rod (5.2) is fixedly mounted on the cage (3), and the other end is fixedly mounted on the support column (1.2). Guardrails (1.11) are provided on both sides of the horizontal plate (1.1), and the connecting platform is fixedly mounted between the cage (3) and the guardrails (1.11).

2. The ladder cage structure according to claim 1, characterized in that: A cast-in-place cap beam (4.1) is poured between the cap beam templates (4). A connecting ladder (3.1) is provided at the upper end of the ladder cage in the direction of the cast-in-place cap beam (4.1). A rotating shaft (3.2) is provided on the side of the connecting ladder (3.1) near the cage body (3). The rotating shaft (3.2) includes a hook (3.7). The hook (3.7) is fixedly installed on the ladder cage. The connecting ladder (3.1) rotates around the rotating shaft (3.2).

3. The ladder cage structure according to claim 2, characterized in that: A fixing protrusion (4.2) is provided at the upper end of the cast-in-place cap beam (4.1). A positioning element (4.3) is provided between the connecting ladder (3.1) and the fixing protrusion (4.2). The positioning element (4.3) includes a positioning ring (4.31) and a positioning block (4.32). The positioning blocks (4.32) are symmetrically arranged on both sides of the positioning ring (4.31). The positioning ring (4.31) is sleeved on the fixing protrusion (4.2), and the side of the positioning ring (4.31) away from the connecting ladder (3.1) abuts against the fixing protrusion (4.2). Extension blocks (4.33) are provided on both sides of the connecting ladder (3.1). The extension block (4.33) and the positioning block (4.32) are fixedly connected by a pull screw (4.34). One end of the pull screw (4.34) is fixedly installed inside the positioning block (4.32), and the other end is installed on the extension block (4.33) by a nut.

4. The ladder cage structure according to claim 1, characterized in that: The cage body (3) includes several parallel shelves (3.3) and several vertical bars (3.4), with fixed trusses (3.5) intersecting between the vertical bars (3.4), and stair components (3.6) between the shelves (3.3).

5. The ladder cage structure according to claim 4, characterized in that: A first limiting block (5.11) is provided on the side of the first connecting rod (5.1) near the cage body (3), and the first limiting block (5.11) abuts against the vertical rod (3.4). A mating plate (5.12) is provided on the side of the first connecting rod (5.1) away from the cage body (3). The side plate of the cap beam template (4) is an I-beam plate. The mating plate (5.12) abuts against the side plate of the cap beam template (4) and is fixedly connected by a fixing screw (5.13).

6. The ladder cage structure according to claim 4, characterized in that: A second limiting block (5.21) is provided on the side of the second connecting rod (5.2) near the cage body (3), and the second limiting block (5.21) abuts against the vertical rod (3.4). A clamping member (5.22) is provided on the side of the second connecting rod (5.2) away from the cage body (3), and the clamping member (5.22) is clamped on the support column (1.2). The second limiting block (5.21) and the clamping member (5.22) are integrally provided at both ends of the second connecting rod (5.2).

7. The ladder cage structure according to claim 1, characterized in that: A guy rope (6) is provided on the side of the cage body (3) away from the cover beam support (1). One end of the guy rope (6) is connected to the cage body (3), and the other end is fixed on the ground.