Crawling ladder mechanism for high-altitude cast-in-place beam construction

By designing a ladder mechanism with a frame body and a flipping mechanism, the problems of swaying and large footprint of plug-in ladders in high pier construction have been solved, thus improving the safety and efficiency of high-altitude construction.

CN223894078UActive Publication Date: 2026-02-10SICHUAN ROAD BRIDGE & BRIDGE ENG CO LTD +1
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Patent Information

Application Number
CN202520135566.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-02-10
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

Existing socket-type ladders or scaffolding ladders are prone to swaying and collapsing during high-pier construction, leading to safety accidents. They also occupy a large space and are inconvenient for transportation.

Method used

A climbing ladder mechanism including a frame body, climbing structure, flipping mechanism and clamping rod is designed. The clamping rod is rotated and fixed to the pier by an electric push rod. The flipping mechanism realizes the rotation of the mounting base from 0° to 90°, reducing the space occupied, and the stability is improved by support rod and adjustment rod.

Benefits of technology

It improved construction safety and progress, reduced the need for temporary support structures, simplified the transportation process, and reduced safety risks and land occupation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a ladder stand mechanism for high-altitude cast-in-place beam construction, relates to the technology of construction equipment, and particularly discloses a frame body, a climbing structure is installed on the frame body, a fixing frame is rotationally arranged on one side of the frame body, an arc-shaped installation base is installed on the fixing frame, clamping rods are rotationally arranged on the two sides of the installation base, and the clamping rods are connected with the climbing structure. A second push rod is rotationally arranged in the mounting base, the telescopic end of the second push rod is hinged to the clamping rod, and a turnover mechanism used for turning over the mounting base is mounted on the frame body; the two clamping rods can be controlled to rotate on the mounting base through the second push rod, so that the frame body located on one side of the pier column is temporarily fixed to the pier column, more temporary supporting structures do not need to be additionally erected, the construction progress of a superstructure of the pier column is accelerated, and the construction efficiency is improved. And the turnover mechanism enables the mounting base to perform turnover motion of 0-90 degrees relative to the frame body, so that the occupied space of the mounting base is reduced, and later transfer is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of construction equipment technology, and more specifically, to a ladder mechanism for high-altitude cast-in-place beam construction. Background Technology

[0002] In the construction of railway piers and cast-in-place continuous beams, to ensure the safety and convenience of construction workers, socket-type ladders or ladders erected from scaffolding are generally used as platforms for construction work, facilitating workers' access to and from the piers for casting-in-place continuous beams. However, socket-type ladders or ladders erected from scaffolding are constructed by connecting steel pipes. When the pier is high, the socket-type or scaffolding ladder structure may sway or collapse when workers are ascending or descending, easily leading to safety accidents. To avoid such accidents, the ladder structure has been optimized. Utility Model Content

[0003] The purpose of this utility model is to provide a ladder mechanism for high-altitude cast-in-place beam construction, which addresses the shortcomings of existing technologies and solves the problems mentioned in the background.

[0004] The technical solution of this utility model is implemented as follows:

[0005] The utility model provides a climbing ladder mechanism for high-altitude cast-in-place beam construction, including a frame body, a climbing structure installed on the frame body, a fixed frame rotatably provided on one side of the frame body, an arc-shaped mounting seat installed on the fixed frame, clamping rods rotatably provided on both sides of the mounting seat, a second push rod rotatably provided inside the mounting seat, the telescopic end of the second push rod is hinged to the clamping rod, and a flipping mechanism for flipping the mounting seat is installed on the frame body.

[0006] In some technical solutions of this utility model, the flipping mechanism includes two first push rods mounted on the frame body, a limiting groove is opened on the side wall of the mounting base, two limiting blocks are slidably arranged in the limiting groove, and the telescopic ends of the two first push rods are respectively hinged to the two limiting blocks.

[0007] In some technical solutions of this utility model, the clamping rod is arc-shaped, and a first mounting bracket is installed on the free end of the clamping rod. A first roller is rotatably provided inside the first mounting bracket.

[0008] In some technical solutions of this utility model, a second mounting bracket is installed inside the mounting base, a third push rod is installed on the inner side wall of the mounting base, the telescopic end of the third push rod is connected to the second mounting bracket, and a second roller is rotatably provided inside the second mounting bracket.

[0009] In some technical solutions of this utility model, an internal threaded cylinder is installed at the bottom of the frame body, and an adjusting rod that is threadedly engaged with the internal threaded cylinder is rotatably provided inside the internal threaded cylinder, and a fixed seat is installed on the adjusting rod.

[0010] In some technical solutions of this utility model, a plurality of support rods are rotatably provided on the side wall of the frame body, and a tie rod hinged to the support rods is rotatably provided on the side wall of the frame body, and a support seat is rotatably provided on the free end of each support rod.

[0011] In some technical solutions of this utility model, a construction platform is provided on the top of the frame body.

[0012] Compared with the prior art, this utility model has at least the following advantages or beneficial effects: the two clamping rods can be controlled to rotate on the mounting base by the second push rod, thereby temporarily fixing the frame body located on one side of the pier to the pier, without the need to erect a lot of temporary support structures, thus speeding up the construction progress of the superstructure of the pier. The frame body is equipped with a mounting base flipping mechanism, which is used to flip the mounting base, so that the mounting base can rotate relative to the frame body from 0° to 90°. Thus, when transporting the frame body, the mounting base can be flipped and made to fit against the frame body, thereby reducing the space occupied by the mounting base and facilitating subsequent transportation. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a structural diagram of the mounting base and clamping rod in this utility model.

[0015] Figure 3 This is a structural diagram of the support rod installation in this utility model.

[0016] Reference numerals in the attached drawings: 1. Frame body; 2. First push rod; 3. Support rod; 4. Pull rod; 5. Adjusting rod; 6. Support seat; 7. Mounting seat; 8. Clamping rod; 9. First roller; 10. First mounting bracket; 11. Second push rod; 12. Fixing bracket; 13. Third push rod; 14. Second mounting bracket; 15. Second roller; 16. Internal threaded cylinder; 17. Fixing bracket. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] Example

[0020] This utility model provides a ladder mechanism for high-altitude cast-in-place beam construction, such as... Figure 1 , Figure 2 As shown, the structure includes a frame body 1, which is welded together from steel pipes. The frame body 1 is generally truncated cone-shaped, with its base width greater than its top width, thus increasing the overall structural stability. A climbing structure is installed on the frame body 1, which is welded to the side wall of the frame body 1 via pipes, providing a climbing area for construction workers. A fixed frame 12 is rotatably mounted on one side of the frame body 1. The fixed frame 12 is also a frame structure and is fixed to the side wall of the frame body 1 by bolts. An arc-shaped mounting base 7 is installed on the fixed frame 12. The mounting base 7 is semi-circular, and clamping rods 8 are rotatably mounted on both sides of the mounting base 7 via pins. The clamping rods 8 are arc-shaped, and a second push rod 11 is rotatably mounted inside the mounting base 7. The second push rod 11 is an electric push rod, and the telescopic end of the second push rod 11 is hinged to the clamping rods 8. In this way, the two clamping rods 8 can be controlled to rotate on the mounting base 7 through the second push rod 11, thereby temporarily fixing the frame body 1 located on one side of the pier to the pier. There is no need to build a lot of temporary support structures, which speeds up the construction progress of the superstructure of the pier. The frame body 1 is equipped with a mounting base 7 flipping mechanism. The flipping mechanism is used to flip the mounting base 7, so that the mounting base 7 can rotate from 0° to 90° relative to the frame body 1. Therefore, when transporting the frame body 1, the mounting base 7 can be flipped to fit against the frame body 1, thereby reducing the space occupied by the mounting base 7 and facilitating subsequent transportation.

[0021] In some technical solutions of this utility model, the flipping mechanism includes two first push rods 2 installed on the frame body 1. The body of the first push rod 2 is hinged to the side wall of the frame body 1. A limiting groove is opened on the side wall of the mounting seat 7. The limiting groove is opened along the circumference of the circle where the mounting seat 7 is located, and the cross-section of the limiting groove is wedge-shaped. Two limiting blocks are slidably arranged in the limiting groove. The limiting blocks are also wedge-shaped blocks. The telescopic ends of the two first push rods 2 are respectively hinged to the two limiting blocks. In this way, the flipping mechanism can make the mounting seat 7 rotate from 0° to 90° relative to the frame body 1, so that the mounting seat 7 fits against the frame body 1 after being flipped, thereby reducing the space occupied by the mounting seat 7 and facilitating subsequent transportation.

[0022] In some technical solutions of this utility model, the clamping rod 8 is arc-shaped, and a first mounting bracket 10 is fixedly installed on the free end of the clamping rod 8 by bolts. A first roller 9 is provided inside the first mounting bracket 10 through a shaft. The first roller 9 is a rubber wheel, which can increase its service life and will not damage the exterior of the pier column.

[0023] In some technical solutions of this utility model, a second mounting bracket 14 is installed inside the mounting base 7. The body of a third push rod 13 is fixedly installed on the inner side wall of the mounting base 7 by bolts. The telescopic end of the third push rod 13 is fixedly connected to the second mounting bracket 14 by bolts. A second roller 15 is rotatably installed inside the second mounting bracket 14. Two installation methods are available for installing the second roller 15. The first installation method is to make the rotation direction of the second roller 15 parallel to the axis of the pier column. In this way, when the third push rod 13 pushes the second roller 15 closer to the outer facade of the pier column, it can cooperate with the first roller to temporarily lock the above structure on the pier column, preventing the frame body 1 from rotating on the pier column. The second installation method is to make the rotation direction of the second roller 15 perpendicular to the axis of the pier column, which facilitates the movement of the frame body 1 along the rotation direction of the pier column for construction of various areas of the superstructure of the pier column.

[0024] In some technical solutions of this utility model, the bottom of the frame body 1 is equipped with an internal threaded cylinder 16 by welding. There are 4 internal threaded cylinders 16, and the 4 internal threaded cylinders 16 are respectively installed at the 4 edges of the frame body 1. An adjusting rod 5 is rotatably provided inside the internal threaded cylinder 16 and is threadedly engaged with it. A fixed seat 17 is installed on the adjusting rod 5. Through the above structure, the horizontal state of the frame body 1 on the uneven foundation can be adjusted to ensure the stability of the frame body 1 when it supports the operator during construction.

[0025] Preferably, the adjusting rod 5 is welded with a rotating handle.

[0026] In some technical solutions of this utility model, a plurality of support rods 3 are rotatably provided on the side wall of the frame body 1. The number of support rods 3 is four, and the four support rods 3 are respectively installed at the four edges of the frame body 1. The support rods 3 are connected to the frame body 1 by hinges. Tie rods 4 are rotatably provided on the side wall of the frame body 1 and are hinged to the support rods 3. The tie rods 4 are connected to the frame body 1 by hinges. Each support rod 3 has a support seat 6 rotatably provided on its free end. The above structure can provide additional support for the frame body 1, prevent the frame body 1 from deflecting or tipping during construction, and ensure the safety of construction personnel.

[0027] In some technical solutions of this utility model, a construction platform is provided on the top of the frame body 1. The construction platform is a plate-shaped structure, which provides operators with a relatively flat operating space on the frame body 1 and improves the safety of operators working at heights.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ladder mechanism for high-altitude cast-in-place beam construction, characterized in that, The system includes a frame body (1), on which a climbing structure is installed. A fixed frame (12) is rotatably provided on one side of the frame body (1). An arc-shaped mounting seat (7) is installed on the fixed frame (12). Clamping rods (8) are rotatably provided on both sides of the mounting seat (7). A second push rod (11) is rotatably provided inside the mounting seat (7). The telescopic end of the second push rod (11) is hinged to the clamping rod (8). A flipping mechanism for flipping the mounting seat (7) is installed on the frame body (1).

2. The ladder mechanism for high-altitude cast-in-place beam construction according to claim 1, characterized in that, The flipping mechanism includes two first push rods (2) mounted on the frame body (1). A limiting groove is provided on the side wall of the mounting base (7). Two limiting blocks are slidably provided in the limiting groove. The telescopic ends of the two first push rods (2) are respectively hinged to the two limiting blocks.

3. The ladder mechanism for high-altitude cast-in-place beam construction according to claim 1, characterized in that, The clamping rod (8) is arc-shaped, and a first mounting bracket (10) is installed on the free end of the clamping rod (8). A first roller (9) is rotatably provided inside the first mounting bracket (10).

4. The ladder mechanism for high-altitude cast-in-place beam construction according to claim 1, characterized in that, The mounting base (7) is equipped with a second mounting bracket (14), and a third push rod (13) is installed on the inner side wall of the mounting base (7). The telescopic end of the third push rod (13) is connected to the second mounting bracket (14), and a second roller (15) is rotatably provided inside the second mounting bracket (14).

5. The ladder mechanism for high-altitude cast-in-place beam construction according to any one of claims 1-4, characterized in that, The bottom of the frame body (1) is equipped with an internal threaded cylinder (16), and an adjusting rod (5) that is threadedly engaged with the internal threaded cylinder (16) is rotatably provided inside the internal threaded cylinder (16). A fixed seat (17) is installed on the adjusting rod (5).

6. The ladder mechanism for high-altitude cast-in-place beam construction according to claim 5, characterized in that, The frame body (1) has a plurality of support rods (3) rotatably mounted on its side wall, and a tie rod (4) hinged to the support rods (3) rotatably mounted on its side wall, and a support seat (6) rotatably mounted on the free end of each support rod (3).

7. The ladder mechanism for high-altitude cast-in-place beam construction according to claim 1, characterized in that, A construction platform is provided on the top of the frame body (1).