Elevator shaft lifting platform for building construction

By improving the structural design of the elevator shaft lifting platform, and utilizing a combination of cylinder-driven sliding plate movement and threaded hole stud limit plate, the problem of inconvenient operation in narrow shafts was solved, the working space was expanded and construction efficiency was improved, and safety and stability were ensured.

CN224450141UActive Publication Date: 2026-07-03CHINA CONSTR FIFTH ENG DIV CORP LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR FIFTH ENG DIV CORP LTD
Filing Date
2025-07-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing elevator shaft lifting platforms used in building construction are inconvenient to operate in narrow shaft spaces, affecting the accuracy and speed of operations, and posing a risk of collisions. The limited space also leads to low construction efficiency.

Method used

An elevator shaft lifting platform was designed, comprising components such as a base plate, support plate, top plate, inclined plate, sliding plate, and cylinder. The sliding plate is driven by the cylinder, and the structure of threaded holes, studs, and limit plates enables the expansion and stability improvement of the platform, thereby enhancing the working space and safety.

Benefits of technology

It expanded the working space, improved operational convenience and construction efficiency, reduced the risk of collisions, enhanced the stability and safety of the platform, and significantly improved the construction progress.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of building construction discloses an elevator shaft hoisting platform for building construction, including the bottom plate, the top fixed connection of bottom plate has four support board, the inner wall of support board is opened with a plurality of thread holes, four the outer wall sliding connection of support board has the top plate, the bottom sliding connection of top plate has two middle boards, the bottom sliding connection of top plate has two inclined plate no.
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Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to an elevator shaft lifting platform for building construction. Background Technology

[0002] High-rise buildings are densely populated and elevators stop frequently. Different floors are often allocated passenger flow through zoned design. However, as the number of elevators increases, the number of elevator shafts increases, and the problems of edge protection and opening closure become prominent, which reduces the safety of workers. At the same time, the structure around the shaft is affected by the requirements of seismic performance and stiffness, and the reinforced concrete volume is large, making construction difficult and seriously affecting the construction period. Therefore, an elevator shaft lifting platform for building construction has emerged.

[0003] The working principle of an elevator shaft lifting platform for building construction is to achieve stable lifting and lowering of the platform within the elevator shaft through the coordinated operation of a power drive system and a guide positioning structure. The platform is typically supported by the inner wall of the shaft or a pre-set guide rail, and is provided with lifting force by power devices such as hydraulic cylinders and winches. The platform is driven to move vertically along the guide mechanism through transmission components such as chains and wire ropes. At the same time, the platform is equipped with multiple safety devices, such as limit switches to prevent overtravel and fall arresters to quickly lock in case of sudden fall, ensuring the safety of the construction process. Workers can perform operations such as elevator track installation and wall construction on the platform. The platform height can be flexibly adjusted through the control system to meet the needs of different construction stages.

[0004] Current elevator shaft lifting platforms for building construction have achieved remarkable results in promoting industry development and meeting the platform lifting needs during construction. They can stably lift personnel and equipment within the shaft, reduce safety hazards associated with traditional operations, and significantly improve construction efficiency, playing a positive role in accelerating elevator shaft construction progress. However, these platforms have significant limitations. Due to the narrow shaft space and the need to reserve protective structures and operating passages, the actual working space is further compressed. When workers are installing equipment or fixing components, the cramped space often makes it difficult for them to stretch their limbs, affecting operational accuracy and speed. Furthermore, the limited space increases the risk of collisions, causing inconvenience to construction. Therefore, a new elevator shaft lifting platform for building construction is proposed to solve these problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an elevator shaft lifting platform for building construction, which aims to improve the problem that workers often have difficulty stretching their limbs due to limited space when performing operations such as equipment installation and component fixing, which affects the accuracy and speed of operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An elevator shaft lifting platform for building construction includes a base plate. Four support plates are fixedly connected to the top of the base plate. Multiple threaded holes are formed on the inner wall of each support plate. A top plate is slidably connected to the outer wall of the four support plates. Two middle plates are slidably connected to the bottom of the top plate. Two inclined plates (first and second) are slidably connected to the bottom of the top plate. A self-sliding block is fixedly connected to one side of the top plate. A load-bearing plate is fixedly connected to one side of the self-sliding block. A cylinder is fixedly connected inside the load-bearing plate. A sliding plate (first) is fixedly connected to the drive end of the cylinder. A push plate (second) is rotatably connected to one side of the sliding plate (first). A connecting plate is rotatably connected to the other side of the push plate (second). A rotating column is fixedly connected to the outer wall of the connecting plate. A push plate (first) is rotatably connected to the side of the connecting plate away from the push plate (second). A sliding plate (second) is rotatably connected to the other side of the push plate (first).

[0008] As a further description of the above technical solution:

[0009] The top and bottom of the rotating column are rotatably connected to the inner wall of the load-bearing plate, the outer wall of the first sliding plate is slidably connected to the inner wall of the load-bearing plate, the outer wall of the second sliding plate is slidably connected to the outer wall of the load-bearing plate, and the inner walls of the plurality of threaded holes are threaded with studs.

[0010] As a further description of the above technical solution:

[0011] A rotating plate is fixedly connected to one side of the stud, and a limit plate is threadedly connected to the outer wall of the stud;

[0012] As a further description of the above technical solution:

[0013] The outer walls of the plurality of studs are threaded with brackets, and one side of the brackets is in contact with one side of the support plate;

[0014] As a further description of the above technical solution:

[0015] The bottoms of the two middle plates are fixedly connected to the tops of the first and second skateboards, respectively; the bottom of the first ramp is fixedly connected to the tops of the first and second skateboards, respectively; and the bottom of the second ramp is fixedly connected to the tops of the first and second skateboards, respectively.

[0016] As a further description of the above technical solution:

[0017] A wall is provided on one side of the base plate, and a sliding column is fixedly connected to one side of the wall;

[0018] As a further description of the above technical solution:

[0019] The inner wall of the self-blocking block is slidably connected to the outer wall of the sliding column, and the four corners of the load-bearing plate are slidably connected to the outer walls of the four support plates respectively.

[0020] As a further description of the above technical solution:

[0021] One side of the limiting plate is in contact with one side of the support plate, and one side of the rotating plate is in contact with one side of the bracket.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by activating the cylinder located on the inner wall of the load-bearing plate, its driving force will cause the slide plate one to slide on the inner wall of the load-bearing plate, thereby causing the rotating plate to drive the push plate two to rotate. With the help of the rotating column, the connecting plate rotates synchronously with the push plate two. Since the slide plate two is restricted by the load-bearing plate, the push plate one will rotate with the connecting plate to drive the slide plate two to move, ultimately realizing the opening and closing movement of the slide plate one and the slide plate two. This design can expand the operating range by extending the platform when the working space of the workers is insufficient, reduce the problem of limited movement caused by the cramped space, make the operation more convenient and flexible, and thus significantly improve the construction efficiency of the workers.

[0024] 2. In this utility model, the cooperation between the rotating plate, stud, and limiting plate greatly accelerates the splicing and disassembly speed of the elevator shaft lifting platform, reduces assembly time, and significantly improves overall work efficiency. The synergistic effect of the sliding column and the self-sliding block allows the platform to move flexibly relative to the wall along the sliding column path under the drive of the self-sliding block, improving the ease of operation. In addition, the support of the bracket, together with the structural connection of inclined plate one, inclined plate two, middle plate, and sliding plate one and sliding plate two, further enhances the stability and firmness of the platform, providing a more reliable safety guarantee for high-altitude operations. Multiple optimizations jointly promote the improvement of construction efficiency and safety. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an elevator shaft lifting platform for building construction proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the top plate of an elevator shaft lifting platform for building construction proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the slide plate of an elevator shaft lifting platform for building construction proposed in this utility model.

[0029] Legend:

[0030] 1. Base plate; 2. Support plate; 3. Top plate; 4. Middle plate; 5. Inclined plate one; 6. Inclined plate two; 7. Slide plate one; 8. Rotating column; 9. Connecting plate; 10. Push plate one; 11. Slide plate two; 12. Cylinder; 13. Self-sliding block; 14. Threaded hole; 15. Stud; 16. Limiting plate; 17. Rotating plate; 18. Load-bearing plate; 19. Push plate two; 20. Slide column; 21. Wall; 22. Bracket. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1 to 3 This utility model provides an embodiment of an elevator shaft lifting platform for building construction, including a base plate 1. The base plate 1 serves as the basic support structure for the entire platform, providing an installation foundation for other components and ensuring the overall stability of the platform. Four support plates 2 are fixedly connected to the top of the base plate 1. Multiple threaded holes 14 are provided on the inner wall of the support plates 2 to enable flexible assembly and disassembly of the platform components. A top plate 3 is slidably connected to the outer wall of the four support plates 2. The top plate 3 serves as the top structure of the work platform, providing working space for workers and allowing the platform height to be adjusted through its slidable connection with the support plates 2. Two middle plates 4 are slidably connected to the bottom of the top plate 3. The middle plates 4 slide at the bottom of the top plate 3 to expand the lateral working space of the platform and improve the flexibility of operation. Two inclined plates 5 are slidably connected to the bottom of the top plate 3. The inclined plates 5 support the top plate 3 and cooperate with other inclined plates to enhance the structural stability of the platform and distribute the pressure generated during operation. Two inclined plates 6 are slidably connected to the bottom of the top plate 3. The inclined plates 6 and the inclined plates 5 work together to form a stable support structure, improving the load-bearing capacity and deformation resistance of the platform.

[0033] A self-sliding slider 13 is fixedly connected to one side of the top plate 3. The self-sliding slider 13 provides guidance and support for the platform. A load-bearing plate 18 is fixedly connected to one side of the self-sliding slider 13. A cylinder 12 is fixedly connected inside the load-bearing plate 18. The cylinder 12 provides power for the expansion of the platform. A sliding plate 7 is fixedly connected to the drive end of the cylinder 12. The sliding plate 7 slides under the drive of the cylinder 12. A push plate 19 is rotatably connected to one side of the sliding plate 7. A connecting plate 9 is rotatably connected to the other side of the push plate 19. The connecting plate 9 serves as an intermediate transmission component to ensure effective power transmission. A rotating column 8 is fixedly connected to the outer wall of the connecting plate 9. The rotating column 8 provides a rotation fulcrum for the connecting plate 9 to ensure stable rotation of the connecting plate 9. A push plate 10 is rotatably connected to the side of the connecting plate 9 away from the push plate 19. A sliding plate 11 is rotatably connected to the other side of the push plate 10. The sliding plate 11 slides under the drive of the push plate 10 and cooperates with the sliding plate 7 to realize the opening and closing movement of the platform and expand the working space.

[0034] The top and bottom of the rotating column 8 are rotatably connected to the inner wall of the load-bearing plate 18. The rotating column 8 rotates within the load-bearing plate 18, ensuring the rotational stability of the connecting plate 9 and improving the reliability of the platform extension mechanism. The outer wall of the sliding plate 1 7 is slidably connected to the inner wall of the load-bearing plate 18. The load-bearing plate 18 provides a sliding track for the sliding plate 1 7, ensuring the stability of its linear motion. The outer wall of the sliding plate 2 11 is slidably connected to the outer wall of the load-bearing plate 18. The load-bearing plate 18 supports the sliding plate 2 11 and restricts its movement trajectory, ensuring the coordinated action of the sliding plate 2 11 and the sliding plate 1 7. The inner walls of the multiple threaded holes 14 are threaded with studs 15. The studs 15, through their cooperation with the threaded holes 14, facilitate the assembly and disassembly of the platform.

[0035] Reference Figures 2 to 4 A rotating plate 17 is fixedly connected to one side of the stud 15. The rotating plate 17 facilitates the rotation of the stud 15 by the workers, enabling quick installation and disassembly of the components and improving work efficiency. A limiting plate 16 is threadedly connected to the outer wall of the stud 15. The limiting plate 16 fixes the position of the bracket 22 by engaging with the thread of the stud 15, ensuring the stability of the platform structure. The outer walls of multiple studs 15 are threadedly connected to the bracket 22. The bracket 22 enhances the structural strength of the platform, distributes the force, and improves the load-bearing capacity and stability of the platform. One side of the bracket 22 is in contact with one side of the support plate 2. The bracket 22 is in close contact with the support plate 2, ensuring effective force transmission and enhancing the overall stability of the platform.

[0036] The bottoms of the two middle plates 4 are fixedly connected to the tops of the first plate 7 and the second plate 11, respectively. The middle plates 4 slide as the first plate 7 and the second plate 11 move, expanding the working space of the platform and meeting different working needs. The bottoms of the first inclined plate 5 are fixedly connected to the tops of the first plate 7 and the second plate 11, respectively. The first inclined plate 5 supports the middle plates 4 and cooperates with other inclined plates to form a stable triangular support structure, improving the stability of the platform. The bottoms of the second inclined plate 6 are fixedly connected to the tops of the first plate 7 and the second plate 11, respectively. The second inclined plate 6 and the first inclined plate 5 jointly support the middle plates 4, enhancing the structural strength of the platform and ensuring that the platform does not deform during operation. A wall 21 is set on one side of the base plate 1. The wall 21 provides support and guidance for the platform, ensuring that the platform moves smoothly along the wall 21. A sliding column 20 is fixedly connected to one side of the wall 21. The sliding column 20 provides a sliding track for the self-sliding block 13, ensuring that the vertical movement path of the platform is accurate.

[0037] The inner wall of the slider 13 is slidably connected to the outer wall of the slide column 20. The slider 13 slides along the slide column 20 to achieve vertical lifting of the platform and ensure the stable operation of the platform in the elevator shaft. The four corners of the load-bearing plate 18 are slidably connected to the outer walls of the four support plates 2 respectively. The support plates 2 provide guidance and support for the load-bearing plate 18 to ensure the smooth movement of the load-bearing plate 18. One side of the limiting plate 16 is in contact with one side of the support plate 2. The limiting plate 16 fixes the position of the bracket 22 through contact with the support plate 2 to prevent the bracket 22 from loosening. One side of the rotating plate 17 is in contact with one side of the bracket 22. The rotating plate 17 ensures that the fastening force of the stud 15 is effectively transmitted through contact with the bracket 22, thereby improving the stability of the platform structure.

[0038] Working principle: Activating cylinder 12 located on the inner wall of the load-bearing plate 18 causes the driving force of cylinder 12 to propel slide plate 7 against the inner wall of the load-bearing plate 18. This, in turn, causes rotating plate 17 to rotate push plate 19. Thanks to the presence of rotating column 8, connecting plate 9 rotates along with push plate 19. Because slide plate 11 is restricted by the load-bearing plate 18, push plate 10 moves along with connecting plate 9, thus enabling slide plate 7 and slide plate 11 to open and close. This allows for platform extension when workers are operating on the platform and the working space is insufficient. The increased working space for operators significantly improves their work efficiency. Thanks to the cooperation of the rotating plate 17, the stud 15, and the limiting plate 16, the assembly and disassembly speed of the elevator shaft lifting platform is greatly improved, resulting in a significant increase in overall work efficiency. Thanks to the cooperation of the sliding column 20 and the self-sliding block 13, the entire platform can be moved relative to the wall 21 along the path of the sliding column 20 by the self-sliding block 13. Thanks to the presence of the bracket 22, and the cooperation of the inclined plate 1 5, inclined plate 2 6, and the middle plate 4 with the sliding plate 1 7 and sliding plate 2 11, the stability and firmness of the entire elevator shaft lifting platform are greatly improved.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lift shaft hoisting platform for construction, comprising a base plate (1), characterised in that: Four support plates (2) are fixedly connected to the top of the base plate (1). Multiple threaded holes (14) are provided on the inner wall of the support plates (2). A top plate (3) is slidably connected to the outer wall of the four support plates (2). Two middle plates (4) are slidably connected to the bottom of the top plate (3). Two inclined plates (5) are slidably connected to the bottom of the top plate (3). Two inclined plates (6) are slidably connected to the bottom of the top plate (3). A self-sliding block (13) is fixedly connected to one side of the top plate (3). A load-bearing plate is fixedly connected to one side of the self-sliding block (13). (18) A cylinder (12) is fixedly connected inside the load-bearing plate (18). A sliding plate (7) is fixedly connected to the drive end of the cylinder (12). A push plate (19) is rotatably connected to one side of the sliding plate (7). A connecting plate (9) is rotatably connected to the other side of the push plate (19). A rotating column (8) is fixedly connected to the outer wall of the connecting plate (9). A push plate (10) is rotatably connected to the side of the connecting plate (9) away from the push plate (19). A sliding plate (11) is rotatably connected to the other side of the push plate (10).

2. A lift shaft hoist platform for use in construction according to claim 1, characterised in that: The top and bottom of the rotating column (8) are rotatably connected to the inner wall of the load-bearing plate (18), the outer wall of the first sliding plate (7) is slidably connected to the inner wall of the load-bearing plate (18), the outer wall of the second sliding plate (11) is slidably connected to the outer wall of the load-bearing plate (18), and the inner walls of the multiple threaded holes (14) are threaded with studs (15).

3. A lift shaft hoist platform for use in construction according to claim 2, characterised in that: A rotating plate (17) is fixedly connected to one side of the stud (15), and a limiting plate (16) is threadedly connected to the outer wall of the stud (15).

4. A lift shaft hoist platform for use in building construction according to claim 3, characterised in that: The outer wall of the plurality of studs (15) is threaded with a bracket (22), one side of the bracket (22) is in contact with one side of the support plate (2).

5. A lift shaft hoist platform for use in construction according to claim 1, characterised in that: The bottoms of the two middle plates (4) are fixedly connected to the tops of the first plate (7) and the second plate (11), respectively. The bottom of the first ramp (5) is fixedly connected to the tops of the first plate (7) and the second plate (11), respectively. The bottom of the second ramp (6) is fixedly connected to the tops of the first plate (7) and the second plate (11), respectively.

6. A lift shaft hoist platform for use in construction according to claim 1, characterised in that: A wall (21) is provided on one side of the base plate (1), and a sliding column (20) is fixedly connected to one side of the wall (21).

7. A lift shaft hoist platform for use in building construction according to claim 6, characterised in that: The inner wall of the self-sliding block (13) is slidably connected to the outer wall of the sliding column (20), and the four corners of the load-bearing plate (18) are slidably connected to the outer walls of the four support plates (2).

8. A lift shaft hoist platform for use in building construction according to claim 4, characterised in that: One side of the limiting plate (16) is in contact with one side of the support plate (2), and one side of the rotating plate (17) is in contact with one side of the bracket (22).