Overhanging type elevator system

Abstract

The utility model relates to the technical field of underground engineering, in particular to an overhanging type ladder cage system which comprises an overhanging beam, inclined struts and a ladder cage. One end of the inclined strut is connected to the underground diaphragm wall, and the other end of the inclined strut is connected with the end, away from the top beam, of the cantilever beam. The upper fixed section of the elevator cage is erected on the cantilever beam, so that the elevator cage is hung through the cantilever beam, meanwhile, the suspension area is arranged between the lower combined section of the elevator cage and the foundation pit, and after the foundation pit is excavated downwards, the elevator cage can be lengthened only by installing a new elevator cage section at the bottom of the lower combined section. Compared with a traditional floor type elevator which needs to be disassembled and moved and then subjected to secondary installation, the overhanging type elevator system does not need to be hoisted, moved and subjected to secondary installation, the elevator installation time is effectively shortened, the elevator hoisting risk is avoided, further, a stable triangular structure is formed between the overhanging beams and the inclined struts, and the elevator installation efficiency is improved. The elevator cage is effectively supported, and the overall stability of the elevator cage is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of underground engineering technology, and in particular to a cantilevered ladder cage system. Background Technology

[0002] During the construction of subway stations, since subway stations usually include multiple functional areas such as platform level, concourse level, and equipment rooms, it is necessary to excavate foundation pits to carry out the construction of each part, such as the reinforcement binding, formwork erection and concrete pouring of structures such as bottom slab, side walls, middle slab and top slab in the foundation pit.

[0003] During the excavation of the foundation pit, as the excavation depth increases, ladder cages are needed as passageways to and from the pit. Generally, ground-mounted ladder cages are used on-site. However, as the depth of the foundation pit continues to increase, the ground-mounted ladder cages need to be lengthened. Each time they are lengthened, the ground-mounted ladder cages need to be dismantled and moved, and then the foundation layer and foundation structure of the ground-mounted ladder cages need to be constructed. Finally, the lengthened ground-mounted ladder cages need to be installed. This operation is cumbersome, the entire process takes a long time, and there are high safety risks during the relocation of the ground-mounted ladder cages. Utility Model Content

[0004] The purpose of this utility model is to provide a cantilevered ladder cage system, which addresses the problems in the background technology where the length of the ground-mounted ladder cage needs to be increased as the depth of the foundation pit increases. However, the lengthening of the ground-mounted ladder cage is not only troublesome and time-consuming, but also poses a high safety risk during the relocation of the ground-mounted ladder cage.

[0005] This utility model provides a cantilevered ladder cage system, including:

[0006] A cantilever beam, which is connected to the cap beam;

[0007] A diagonal brace, one end of which is connected to the underground continuous wall, and the other end of which is connected to the end of the cantilever beam away from the cap beam;

[0008] The ladder cage includes an upper fixed section and a lower combined section that are connected to each other. The upper fixed section is erected on the cantilever beam, and the bottom of the lower combined section has a suspended area between it and the bottom of the foundation pit.

[0009] The cantilevered ladder cage system described in this application includes a ladder cage comprising an upper fixed section and a lower combined section connected to each other. The upper fixed section of the ladder cage is erected on a cantilever beam, thereby suspending the ladder cage through the cantilever beam. Simultaneously, there is a suspended area between the lower combined section of the ladder cage and the foundation pit. After the foundation pit is excavated downwards, the vertical spacing of the suspended area increases. The ladder cage can be lengthened simply by installing new ladder cage segments at the bottom of the lower combined section. Compared to traditional ground-mounted ladder cages that require dismantling, relocation, and secondary installation, the cantilevered ladder cage system of this application eliminates the need for hoisting, relocation, and secondary installation, effectively reducing the installation time and avoiding hoisting risks. Furthermore, it is equipped with diagonal bracing. One end of the diagonal bracing is connected to the underground continuous wall, and the other end is connected to the end of the cantilever beam furthest from the cap beam, thus forming a stable triangular structure between the cantilever beam and the diagonal bracing to effectively support the ladder cage and ensure its overall stability.

[0010] Preferably, the lower assembly segment comprises a plurality of standard sections connected in sequence.

[0011] Preferably, it also includes a wall tie, one end of which is connected to the side of the lower assembly section, and the other end of which is fixed to the underground continuous wall.

[0012] Preferably, the wall ties are spaced apart along the length of the lower assembly section.

[0013] Preferably, it further includes a first stairway, one end of which is located on the upper fixed section, and the other end of which extends to the ground.

[0014] Preferably, it also includes a second stairway, one end of which is located at the bottom of the lower assembly section, and the other end of which extends to the bottom of the pit.

[0015] Preferably, it also includes an anti-smashing canopy, which is located in the area above the upper fixed section.

[0016] Preferably, it further includes a buffer layer located between the anti-smashing canopy and the upper fixed section.

[0017] Preferably, the cantilever beam is embedded in the cap beam.

[0018] Preferably, the cantilever beam is an I-beam.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] The cantilevered ladder cage system described in this application includes a ladder cage comprising an upper fixed section and a lower combined section connected to each other. The upper fixed section of the ladder cage is erected on a cantilever beam, thereby suspending the ladder cage through the cantilever beam. Simultaneously, there is a suspended area between the lower combined section of the ladder cage and the foundation pit. After the foundation pit is excavated downwards, the vertical spacing of the suspended area increases. The ladder cage can be lengthened simply by installing new ladder cage segments at the bottom of the lower combined section. Compared to traditional ground-mounted ladder cages that require dismantling, relocation, and secondary installation, the cantilevered ladder cage system of this application eliminates the need for hoisting, relocation, and secondary installation, effectively reducing the installation time and avoiding hoisting risks. Furthermore, it is equipped with diagonal bracing. One end of the diagonal bracing is connected to the underground continuous wall, and the other end is connected to the end of the cantilever beam furthest from the cap beam, thus forming a stable triangular structure between the cantilever beam and the diagonal bracing to effectively support the ladder cage and ensure its overall stability. Attached Figure Description

[0021] Figure 1 This is a sectional view of the cantilevered ladder cage system of this application.

[0022] Figure 2 This is a top view of the cantilevered ladder cage system of this application.

[0023] Figure 3 yes Figure 1 A magnified view of part A.

[0024] Marked in the image:

[0025] 1-Cantilever beam, 2-Diagonal brace, 3-Ladder cage, 31-Upper fixed section, 32-Lower combined section, 321-Standard section, 4-Wall tie, 5-First ladder, 6-Second ladder, 7-Anti-collision canopy, 8-Buffer layer, 9-First embedded part, 10-Cap beam, 20-Diaphragm wall, 30-Retaining wall, 40-Foundation pit, 50-Suspended area, 60-Second embedded part. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0027] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0028] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0029] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0030] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0031] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0032] Example 1

[0033] like Figures 1-3 As shown, the cantilevered ladder cage system described in this embodiment includes a cantilever beam 1, a diagonal brace 2, and a ladder cage 3. The cantilever beam 1 is connected to the capping beam 10, one end of the diagonal brace 2 is connected to the underground continuous wall 20, and the other end of the diagonal brace 2 is connected to the end of the cantilever beam 1 away from the capping beam 10.

[0034] The ladder cage 3 includes an upper fixed section 31 and a lower combined section 32 that are connected to each other. The upper fixed section 31 is erected on the cantilever beam 1, and the bottom of the lower combined section 32 has a suspended area 50 between it and the bottom surface of the foundation pit 40.

[0035] like Figure 1 As shown, the lower assembly section 32 includes multiple standard sections 321 connected in sequence. Each standard section 321 has a height of 2.5m, and adjacent standard sections 321 are connected by high-strength bolts.

[0036] Furthermore, when it is necessary to extend the ladder cage 3, a new standard section 321 can be added to the bottom of the lower assembly section 32. The assembly method is simple and convenient, and there is no need to dismantle or move the fixed ladder cage 3, which greatly simplifies the operation process.

[0037] The cantilevered ladder cage system of this application has an upper fixed section 31 of the ladder cage 3 mounted on a cantilever beam 1, thereby suspending the ladder cage 3 through the cantilever beam 1. At the same time, there is a suspended area 50 between the lower combined section 32 of the ladder cage 3 and the foundation pit 40. After the foundation pit 40 is excavated downwards, the vertical spacing of the suspended area 50 increases. The ladder cage 3 can be lengthened simply by installing a new standard section 321 at the bottom of the lower combined section 32. Compared with the traditional method of dismantling and relocating the ground-mounted ladder cage and then reinstalling it, the cantilevered ladder cage system of this application does not require hoisting, relocation and reinstallation, effectively reducing the installation time of the ladder cage 3 and avoiding the hoisting risks of the ladder cage 3. Furthermore, a diagonal brace 2 is also provided. One end of the diagonal brace 2 is connected to the underground continuous wall 20, and the other end of the diagonal brace 2 is connected to the end of the cantilever beam 1 away from the cap beam 10, thereby forming a stable triangular structure between the cantilever beam 1 and the diagonal brace 2 to effectively support the ladder cage 3 and ensure the overall stability of the ladder cage 3.

[0038] In an optional embodiment, the cantilever beam 1 is pre-embedded in the cap beam 10;

[0039] Furthermore, the cantilever beam 1 is an I-beam. During the construction of the capping beam 10, the cantilever beam 1 is pre-embedded, and the reinforcing bars of the cantilever beam 1 and the capping beam 10 are connected to each other. Then, concrete is poured to make the cantilever beam 1 and the capping beam 10 form an integral whole.

[0040] In an optional embodiment, the upper fixed section 31 and the cantilever beam 1 are connected by welding or bolting to form a whole.

[0041] In an optional implementation, the diagonal brace 2 is an I-beam.

[0042] In optional implementations, such as Figure 3 As shown, a first embedded part 9 is provided on the underground continuous wall 20. The first embedded part 9 is an L-shaped steel plate, and the diagonal brace 2 is connected to the first embedded part 9 by welding.

[0043] In optional implementations, such as Figure 1 As shown, the capping beam 10 is connected to the top of the diaphragm wall 20. Both the capping beam 10 and the diaphragm wall 20 are reinforced concrete components.

[0044] In one or more implementations, such as Figure 1 As shown, it also includes a first ladder 5, one end of which is located on the upper fixed section 31, and the other end of which extends to the ground. This facilitates workers' access to the ladder cage 3 via the first ladder 5.

[0045] The first stairway 5 is set diagonally upward and crosses the retaining wall 30 on the ground.

[0046] In an optional embodiment, a second ladder 6 is also included, with one end of the second ladder 6 located at the bottom of the lower assembly section 32 and the other end extending to the bottom surface of the pit 40. This facilitates workers' access to the pit 40 via the second ladder 6.

[0047] In optional implementations, such as Figure 1 , Figure 2 As shown, it also includes a protective canopy 7, which is located above the upper fixed section 31. The protective canopy 7 prevents debris from entering the ladder cage 3.

[0048] In an optional embodiment, a buffer layer 8 is also included. The buffer layer 8 is located between the anti-smashing canopy 7 and the upper fixed section 31. When a heavy object damages the anti-smashing canopy 7, the buffer layer 8 provides secondary protection.

[0049] Example 2

[0050] Based on Example 1, such as Figure 1 , Figure 3 As shown in the figure, the cantilevered ladder cage system described in this embodiment also includes a wall tie 4. One end of the wall tie 4 is connected to the side of the lower assembly section 32, and the other end of the wall tie 4 is fixed to the underground continuous wall 20.

[0051] The lower assembly section 32 is connected to the underground continuous wall 20 through the wall tie 4 to make the lower assembly section 32 more stable and prevent the workers from shaking when going up and down in the ladder cage 3.

[0052] In optional implementations, such as Figure 1 As shown, the wall ties 4 are spaced apart along the length of the lower assembly section 32.

[0053] In an optional embodiment, the lower assembly section 32 includes a plurality of standard sections 321 connected in sequence, and each standard section 321 is provided with a wall tie 4.

[0054] In an optional embodiment, the wall tie 4 is an 80mm×80mm square steel. One end of the wall tie 4 is bolted or welded to the standard section 321, and the other end of the wall tie 4 is welded or bolted to the embedded part that is pre-installed on the underground continuous wall 20.

[0055] In optional implementations, such as Figure 3 As shown, a second embedded part 60 is provided on the underground continuous wall 20. The second embedded part 60 is a pre-embedded steel plate, and the wall tie 4 is connected to the second embedded part 60 by welding.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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 cantilevered ladder cage system, characterized in that, include: A cantilever beam (1) is connected to a cap beam (10); A diagonal brace (2) is provided, one end of which is connected to the underground continuous wall (20), and the other end of which is connected to the end of the cantilever beam (1) away from the cap beam (10). The ladder cage (3) includes an upper fixed section (31) and a lower combined section (32) that are connected to each other. The upper fixed section (31) is erected on the cantilever beam (1), and the bottom of the lower combined section (32) has a suspended area (50) between the bottom and the bottom surface of the foundation pit (40).

2. The overhang-type ladder cage system according to claim 1, characterized by, The lower assembly section (32) includes multiple standard sections (321) connected in sequence.

3. The overhang-type ladder cage system according to claim 1, characterized by, It also includes a wall tie (4), one end of which is connected to the side of the lower assembly section (32), and the other end of which is fixed to the underground continuous wall (20).

4. The overhang-type ladder cage system according to claim 3, characterized by The wall ties (4) are spaced apart along the length of the lower assembly section (32).

5. The cantilevered ladder cage system of claim 1, wherein, It also includes a first stairway (5), one end of which is located on the upper fixed section (31), and the other end of which extends to the ground.

6. The overhang-type ladder cage system according to claim 5, wherein It also includes a second stairway (6), one end of which is located at the bottom of the lower assembly section (32), and the other end of which extends to the bottom of the pit (40).

7. The cantilevered ladder cage system of claim 1, wherein, It also includes a protective canopy (7), which is located in the area above the upper fixed section (31).

8. The overhang-type ladder cage system according to claim 7, characterized by It also includes a buffer layer (8) located between the anti-smashing canopy (7) and the upper fixed section (31).

9. The overhang-type ladder cage system according to claim 1, wherein The cantilever beam (1) is embedded in the cap beam (10).

10. A cantilevered ladder cage system according to claim 9, characterized in that, The cantilever beam (1) is an I-beam.

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