An adjustable support structure and system for cantilever scaffolding

Abstract

This utility model provides an adjustable support structure and system for cantilever scaffolding, comprising: a cantilever main beam, the cantilever main beam including a fixed section and a cantilever section, the cantilever section being used to support the cantilever scaffolding; a compression upright and an adjustable tie rod disposed below the fixed section, the upper end of the compression upright being connected to the front end of the fixed section, the front end of the fixed section being close to the cantilever section, the upper end of the adjustable tie rod being connected to the rear end of the fixed section, and the lower ends of the compression upright and the adjustable tie rod being provided with a fixing structure, which is connected to the cast-in-place building structure through the fixing structure; the adjustable tie rod includes a telescopic sleeve and a telescopic tube movably disposed within the telescopic sleeve, the length of the adjustable tie rod being adjusted by adjusting the length of the telescopic tube within the telescopic sleeve, the length of the adjustable tie rod being adjusted by adjusting the length of the tie rod to adapt to the elevation changes of the cantilever scaffolding at different construction stages and to apply pre-tension to reduce the deflection of the cantilever main beam.

Description

Technical Field

[0001] This utility model relates to the technical field of construction scaffolding, and in particular to an adjustable support structure and system for cantilever scaffolding. Background Technology

[0002] Scaffolding support structures are an important technology used in building construction to support scaffolding. They primarily bear the weight of construction workers, building materials, and equipment, providing a safe and stable working space for workers. Stable scaffolding support structures ensure smooth construction processes and offer a degree of stability, adaptability, and economy.

[0003] However, existing pre-embedded anchoring methods for scaffolding support structures have the following technical problems: 1. Damage to the integrity of precast components: If anchors are pre-embedded by drilling during on-site construction, the internal steel mesh or pre-embedded pipelines will be directly damaged, leading to a decrease in structural bearing capacity and high repair costs. 2. Limited application conditions: Traditional scaffolding support structures can only adapt to a single construction environment and cannot flexibly adjust the usage height of the support structure according to the placement of the scaffolding, resulting in low work efficiency. 3. Limited load transfer path: As cantilever components, precast components have limited resistance to overturning moments. Directly anchoring I-beams may cause stress concentration at the root of the precast components, exceeding the design load. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the technical problem to be solved by this utility model is to provide an adjustable support structure and system for cantilever scaffolding, which solves the problems of damage to the integrity of prefabricated components, limited working conditions, and inability to effectively adjust load and height in the existing scaffolding support structure.

[0005] To solve the above-mentioned technical problems, this utility model provides an adjustable support structure for cantilevered scaffolding, installed in a cast-in-place building structure, for supporting cantilevered scaffolding, comprising:

[0006] The cantilevered main beam includes a fixed section and a cantilevered section, the cantilevered section being used to support the cantilevered scaffolding;

[0007] A pressure-bearing upright and an adjustable tie rod are installed below the fixed section. The upper end of the pressure-bearing upright is connected to the front end of the fixed section, and the front end of the fixed section is close to the cantilever section. The upper end of the adjustable tie rod is connected to the rear end of the fixed section. The bottom ends of the pressure-bearing upright and the adjustable tie rod are provided with a fixing structure, which is connected to the cast-in-place building structure through the fixing structure.

[0008] The adjustable tie rod includes a telescopic sleeve and a telescopic tube movably disposed within the telescopic sleeve. By adjusting the length of the telescopic tube within the telescopic sleeve, the length of the adjustable tie rod is adjusted. By adjusting the length of the tie rod, the requirements for changes in the elevation of the cantilever scaffolding at different construction stages can be adapted.

[0009] As a more preferred method, bolted steel pressure plates and thick steel plates are arranged parallel to each other on the upper and lower sides of the cantilevered main beam. The cantilevered main beam is locked and fixed by the connecting bolts between the bolted steel pressure plates and the thick steel plates to prevent the cantilevered main beam from shifting in the horizontal direction and to maintain the stability of the supporting structure.

[0010] As a more preferred embodiment, the adjustable tie rod includes two telescopic tubes, one end of which is inserted into the end of the telescopic sleeve. The length of the adjustable tie rod is adjusted by the helical rotation of the telescopic tubes within the telescopic sleeve to adapt to different operating conditions. The adjustable tie rod converts the bending moment of the cantilever beam into axial force, resulting in clear force transmission, good stress performance, and light weight, facilitating construction. By adjusting the tie rod length, preload can be applied to reduce the deflection of the cantilever main beam.

[0011] As a more preferred embodiment, the adjustable tie rod also includes two double-hinged lugs, which are respectively hinged to the other end of the telescopic tube. The double-hinged lugs are hinged to the adjustable tie rod by pins, which reduces the bending moment at the root of the rear end of the fixed section of the cantilever main beam, avoids the transmission of bending moment, ensures that the tie rod is under pure tension, reduces the occurrence of stress concentration, and improves the stability and safety of the adjustable tie rod and the entire cantilever scaffold structure.

[0012] As a more preferred method, the telescopic sleeve is provided with an internal thread, and the outer wall of the telescopic tube is provided with an external thread that matches the internal thread. The telescopic tube is provided in the telescopic sleeve through a threaded connection. Rotating the telescopic tube adjusts the extension or retraction of the adjustable rod. The telescopic sleeve and the telescopic tube are connected by a thread, which enables precise adjustment of the length of the adjustable rod by rotation.

[0013] As a preferred embodiment, the central axis of the pressure-bearing upright is parallel to the central axis of the adjustable tie rod. The adjustable support structure of the cantilever scaffold is equipped with multiple replaceable pressure-bearing uprights, each adapted to the adjustable tie rod's length. Depending on different construction requirements, the adjustable tie rod is rotated via a threaded telescopic tube and telescopic sleeve to adjust its total length. Simultaneously, the pressure-bearing upright is replaced with one of the same specifications to match the adjustable tie rod's length. This ensures the cantilever main beam is horizontally fixed, and the pressure-bearing upright and adjustable tie rod are perpendicular to the cantilever main beam, allowing for flexible adjustment of the support structure's height to adapt to more complex working conditions.

[0014] As a more preferred approach, the central axis of the telescopic tube coincides with the central axis of the telescopic sleeve, which enables the load to be transmitted evenly along the central axis direction, avoiding eccentricity or twisting of the load during transmission, and preventing local deformation or damage to the structure due to uneven force.

[0015] As a more preferred approach, an adjustable support system for cantilevered scaffolding includes:

[0016] In a cast-in-place building structure, the structural beams or slabs are equipped with anchoring structures adapted to the fixed structure. The fixed structures at the bottom ends of the compression uprights and adjustable tie rods are fixed to the anchoring structures, and the cantilevered sections extend beyond the precast components, preventing damage to the precast components from on-site embedded anchors and ensuring the structural integrity of the precast components. The connection between the fixed structure and the anchoring structure ensures the integrity of the support system and helps improve the stability of the support structure.

[0017] As a more preferred method, the anchoring structure includes a U-shaped steel bar, and the fixing structure includes a connecting plate. The connecting plate has fixing holes adapted to the U-shaped steel bar. The end of the U-shaped steel bar passes through the fixing holes and is locked with fasteners. This can improve the connection stability between the fixing structure and the anchoring structure and enhance the supporting stiffness of the structure.

[0018] As a more preferred method, the bottom end of the pressure-bearing upright is welded and fixed to the connecting plate, which can ensure that when the pressure-bearing upright is under pressure, the force can be stably transmitted to the connecting plate, providing a stable vertical support force for the scaffolding support structure and preventing the pressure-bearing upright from swaying or tilting under load.

[0019] As described above, the present invention has the following beneficial effects: When in use, the adjustable support structure for cantilever scaffolding connects the fixed structure to the cast-in-place building structure. The bottom ends of the pressure-bearing uprights and adjustable tie rods are respectively connected to the fixed structure. A thick steel plate is welded to the top of the pressure-bearing uprights. The cantilever main beam is placed horizontally on the thick steel plate, perpendicular to the pressure-bearing uprights below. A bolted steel pressure plate is placed on the upper surface of the I-shaped cantilever main beam. Connecting bolts are passed through the bolted steel pressure plate and the thick steel plate below the cantilever main beam, and the connecting bolts are tightened to secure the cantilever main beam. The top of the adjustable tie rod is hinged to the double-ear plate installed at the bottom rear end of the cantilever main beam using pins. The scaffolding is placed on the cantilever section of the cantilever main beam to provide stable support for the scaffolding. This effectively transfers the vertical load generated during the use of the scaffolding evenly to the cast-in-place building structure through this support structure, avoiding damage to the prefabricated components of the building's exterior walls caused by on-site embedded anchors and ensuring the structural integrity of the prefabricated components.

[0020] The adjustable tie rod designed in this utility model includes a telescopic sleeve and a telescopic tube movably installed within the telescopic sleeve. It has a simple structure and is easy to operate. By adjusting the length of the telescopic tubes in the upper and lower parts of the adjustable tie rod within the telescopic sleeve, the length of the adjustable tie rod can be adjusted according to actual needs to adapt to changes in the elevation of the cantilever scaffolding at different construction stages. Furthermore, in this adjustable support structure for cantilever scaffolding, the adjustable tie rod converts the bending moment of the cantilever beam into axial force, resulting in clear force transmission, good stress performance, and light weight, facilitating construction. By adjusting the length of the tie rod, pre-tension can be applied to reduce the deflection of the cantilever main beam, thereby ensuring the stability of the entire support structure, improving the overall rigidity of the support structure, and preventing swaying or local instability of the scaffolding during construction.

[0021] In use, the compression upright of this invention, by connecting with the thick steel plate below the cantilevered main beam, can effectively and evenly transfer the vertical load generated during the use of the scaffolding to the compression upright, thereby reducing the risk of instability of the cantilevered support structure. In addition, the double I-beams (main beam + upright) form a spatial stiffness skeleton, which improves the resistance to lateral displacement and helps maintain the stability of the cantilevered support structure.

[0022] This utility model discloses an adjustable support system for cantilever scaffolding. An anchoring structure adapted to the fixed structure is installed on the structural beams or slabs of the cast-in-place building structure. The fixed structure at the bottom of the compression uprights and adjustable tie rods is fixed to the anchoring structure, allowing the cantilevered section of the main beam to extend beyond the precast component. This support system ensures the integrity of the precast component, avoiding the need for pre-embedded anchors during on-site construction, which could cause structural damage to the precast component, reduce its load-bearing capacity, and increase repair costs. Furthermore, by setting anchoring points on the structural beams or slabs of the cast-in-place structure, temporary on-site drilling is avoided, improving the efficiency of using this adjustable support system. Attached Figure Description

[0023] Figure 1 The diagram shown is a structural schematic of the adjustable support structure for cantilevered scaffolding of this utility model.

[0024] Figure 2 The diagram shown is a structural schematic of the adjustable pull rod of this utility model;

[0025] Figure 3 The diagram shown is a top view of the cantilever main beam of this utility model.

[0026] Figure 4 This diagram illustrates the application of the adjustable support structure for cantilevered scaffolding according to this invention.

[0027] Component designation explanation

[0028] 1. Cantilevered main beam

[0029] 101 Cantilever Section

[0030] 102 Fixed Section

[0031] 2. Compression-bearing uprights

[0032] 3 Adjustable pull rod

[0033] 301 telescopic sleeve

[0034] 302 Expansion Tube

[0035] 4 bolts steel pressure plate

[0036] 5mm thick steel plate

[0037] 7. Fixed structure

[0038] 701 Connecting Plate

[0039] 702 Fasteners

[0040] 8 Double-eared plate

[0041] 9 U-shaped steel bars

[0042] 12. Cast-in-place building structures

[0043] 13 Precast components Detailed Implementation

[0044] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0045] It should be understood that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed in this utility model. The following detailed description should not be considered restrictive, and the scope of the embodiments of this application is limited only by the claims of the published patents. The terminology used herein is for describing specific embodiments only and is not intended to limit this application. Spatial terms such as "upper," "lower," "left," "right," "below," "below," "lower part," "above," "upper part," etc., may be used in the text to illustrate the relationship between one element or feature shown in the figures and another element or feature.

[0046] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "holding" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0047] Furthermore, as used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms “comprising,” “including,” indicate the presence of the stated feature, operation, element, component, item, kind, and / or group, but do not preclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, kinds, and / or groups. The terms “or” and “and / or” as used herein are interpreted as inclusive, or mean any one or any combination thereof. Thus, “A, B, or C” or “A, B, and / or C” means “any one of: A; B; C; A and B; A and C; B and C; A, B, and C.” Exceptions to this definition arise only when combinations of elements, functions, or operations are inherently mutually exclusive in some manner.

[0048] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model are further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0049] like Figures 1 to 4 As shown, this utility model provides an adjustable support structure for cantilever scaffolding, installed on the cast-in-place building structure 12, for supporting the cantilever scaffolding, including:

[0050] The cantilevered main beam 1 includes a fixed section 102 and a cantilevered section 101, the cantilevered section 101 being used to support the cantilevered scaffolding;

[0051] The pressure-bearing upright 2 and adjustable tie rod 3 are installed below the fixed section 102. One end of the pressure-bearing upright 2 is connected to the front end of the fixed section 102. The front end of the fixed section 102 is close to the cantilever section 101. The upper end of the adjustable tie rod 3 is connected to the rear end of the fixed section 102. The bottom ends of the pressure-bearing upright 2 and the adjustable tie rod 3 are provided with a fixing structure 7, which is connected to the cast-in-place building structure 12 through the fixing structure 7.

[0052] The adjustable tie rod 3 includes a telescopic sleeve 301 and a telescopic tube 302 movably disposed within the telescopic sleeve 301. By adjusting the length of the telescopic tube 302 within the telescopic sleeve 301, the length of the adjustable tie rod 3 is adjusted. By adjusting the length of the tie rod, the requirements of the elevation change of the cantilever scaffold at different construction stages can be adapted, and a pre-tension can be applied to reduce the deflection of the cantilever main beam 1.

[0053] To better illustrate the adjustable support structure for cantilever scaffolding of this utility model, the following specific application will be used as an example: When using the adjustable support structure for cantilever scaffolding of this utility model, the fixed structure 7 is connected to the cast-in-place building structure 12. The bottom ends of the compression uprights 2 and the adjustable tie rods 3 are respectively connected to the fixed structure 7. A thick steel plate 5 is welded to the top of the compression uprights 2. The cantilever main beam 1 is placed horizontally on the thick steel plate 5, and kept perpendicular to the compression uprights 2 below. The bolted steel pressure plate 4 is placed on the I-shaped cantilever main beam. On the upper surface of beam 1, connecting bolts are passed through the bolt steel pressure plate 4 and the thick steel plate 5 below the cantilever main beam 1. The connecting bolts are tightened to secure the cantilever main beam 1. The top of the adjustable tie rod 3 is hinged to the double hanging lug plate 8 installed on one side of the cantilever main beam 1 through a pin. The scaffold is placed on the cantilever section 101 of the cantilever main beam 1 to provide stable support for the scaffold and ensure that the vertical load is evenly transmitted. There is no need to drill holes in the precast component 13, so as to achieve zero damage to the precast component 13 and avoid damage to the precast component 13.

[0054] The adjustable tie rod 3 designed in this utility model includes a telescopic sleeve 301 and a telescopic tube 302 movably disposed within the telescopic sleeve 301. It has a simple structure and is easy to operate. By adjusting the length of the telescopic tube 302 in the upper and lower parts of the adjustable tie rod 3 within the telescopic sleeve 301, the length of the adjustable tie rod 3 can be finely adjusted according to actual needs to adapt to changes in the elevation of the cantilever scaffolding at different construction stages. Furthermore, in this adjustable support structure for cantilever scaffolding, the length of the adjustable tie rod 3 is adjusted by rotating a threaded rod (adjustment range 0-500mm), adapting to changes in the scaffolding elevation at different construction stages. The adjustable tie rod 3 primarily bears tensile force, converting the bending moment of the cantilever beam into axial force, resulting in clear force transmission, good stress performance, and light weight, facilitating construction. By adjusting the length of the tie rod, pre-tension can be applied to reduce the deflection of the cantilever main beam 1.

[0055] In use, the compression upright 2 of this utility model is connected to the thick steel plate 5 below the cantilever main beam 1 to form a rigid compression support point, which can transmit the vertical load generated during the use of the scaffold. The double I-beams (main beam + upright) form a spatial rigidity skeleton, which improves the resistance to lateral displacement and helps to maintain the stability of the cantilever support structure.

[0056] In some embodiments of this utility model, such as Figures 1 to 4The cantilever main beam 1 has parallel bolted steel pressure plates 4 and thick steel plates 5 on its upper and lower sides. The cantilever main beam 1 is locked and fixed by connecting bolts 6 between the bolted steel pressure plates 4 and the thick steel plates 5, which prevents the cantilever main beam 1 from shifting in the horizontal direction and maintains the stability of the support structure. Furthermore, in this embodiment, the cantilever main beam 1 is made of 16# to 22# I-beams. The double lifting lug plate 8 is welded to the rear end of the fixed section 102 of the cantilever main beam 1 and is hinged to the adjustable tie rod 3 by a pin to bear the vertical tension, avoid bending moment transmission, and ensure a pure tensile stress state. The design and calculated stress of the cantilever main beam 1 should comply with the relevant requirements for cantilever steel in the "Safety Technical Specification for Construction Coupler-Type Steel Pipe Scaffolding" and other specifications.

[0057] In some embodiments of this utility model, such as Figures 1 to 4 The adjustable tie rod 3 includes two telescopic tubes 302, one end of which is inserted into the end of the telescopic sleeve 301. The length of the adjustable tie rod 3 can be adjusted by the spiral rotation of the telescopic tubes 302 within the telescopic sleeve 301 to adapt to the changing scaffolding elevation requirements at different construction stages.

[0058] In this embodiment, the adjustable tie rod 3 is a φ48 steel pipe threaded assembly. The adjustable tie rod 3 is used to bear vertical tension and adjust the elevation of the cantilever main beam 1. The telescopic tube 302 of the adjustable tie rod 3 is made of φ38 steel pipe (external thread), and the telescopic sleeve 301 is made of φ48 steel pipe (internal thread). The telescopic tube 302 and the telescopic sleeve 301 form a threaded connection structure, with an adjustment accuracy of ±2mm, which is suitable for the ±5mm floor height error requirement of prefabricated buildings. In some embodiments of this utility model, such as... Figures 1 to 4 The central axis of the pressure-bearing upright 2 is parallel to the central axis of the adjustable tie rod 3. The adjustable support structure of the cantilever scaffold is equipped with multiple replaceable pressure-bearing uprights 2. The multiple pressure-bearing uprights 2 are adapted to the adjustable tie rod 3 for length adjustment. According to different construction requirements, the adjustable tie rod 3 is rotated through the threaded telescopic tube 302 and telescopic sleeve 301 to adjust the total length of the adjustable tie rod 3. At the same time, the pressure-bearing upright 2 is replaced with a specification that matches the length of the adjustable tie rod 3, so as to achieve the position requirements of the cantilever main beam 1 being horizontally fixed and the pressure-bearing upright 2 and the adjustable tie rod 3 being perpendicular to the cantilever main beam 1, thereby realizing the flexible adjustment of the height of the support structure to adapt to more complex working conditions. Furthermore, in this embodiment, the compression upright 2 serves as a compression member to transfer vertical loads to the building structure beam. A 10mm thick steel plate 5 is welded to the top of the compression upright 2, and it is clamped and fixed to the front end of the cantilever main beam 1 by the bolt steel pressure plate 4, realizing a "non-destructive detachable connection". A 10mm thick steel plate 5 is welded to the bottom of the compression upright 2, and it is fixed to the anchoring structure to form a rigid compression point, thereby enhancing the overturning resistance.

[0059] In some embodiments of this utility model, such as Figure 2 The central axis of the telescopic tube 302 coincides with the central axis of the telescopic sleeve 301, which enables the load to be transmitted evenly along the central axis direction, avoiding eccentricity or twisting of the load during transmission, and preventing local deformation or damage to the structure due to uneven force.

[0060] In some embodiments of this utility model, such as Figures 1 to 4 The cast-in-place structure 12 has structural beams or slabs equipped with anchoring structures adapted to the fixed structure 7. The fixed structures 7 at the bottom ends of the compression uprights 2 and adjustable tie rods 3 are fixed to the anchoring structures, and the cantilever section 101 extends beyond the precast component 13. Specifically, this adjustable support system for cantilever scaffolding provides anchoring structures adapted to the fixed structure 7 in the structural beams or slabs of the cast-in-place structure 12. The fixed structures 7 at the bottom ends of the compression uprights 2 and adjustable tie rods 3 are fixed to the anchoring structures, and the cantilever section 101 of the cantilever main beam 1 extends beyond the precast component 13. This support system ensures the integrity of the precast component 13, avoiding the need for pre-embedded anchors during on-site construction, which could damage the precast component 13, reduce its load-bearing capacity, and increase repair costs. Furthermore, the anchoring points in the structural beams or slabs of the cast-in-place structure 12 avoid temporary on-site drilling, improving the efficiency of the adjustable support system.

[0061] In some embodiments of this utility model, such as Figures 1 to 4 The anchoring structure includes a U-shaped steel bar 9, and the fixing structure 7 includes a connecting plate 701. The connecting plate 701 has a fixing hole adapted to the U-shaped steel bar 9. The end of the U-shaped steel bar 9 passes through the fixing hole and is locked by a fastener 702. This can improve the connection stability between the fixing structure 7 and the anchoring structure and enhance the support stiffness of the structure.

[0062] In some embodiments of this utility model, such as Figures 1 to 4 The bottom end of the pressure-bearing upright 2 is welded and fixed to the connecting plate 701, which can ensure that when the pressure-bearing upright 2 is under pressure, the vertical pressure can be stably transmitted to the connecting plate 701, providing a stable vertical support force for the scaffold and preventing the pressure-bearing upright 2 from swaying or tilting under load.

[0063] In summary, the adjustable support structure for cantilever scaffolding of this invention has the following advantages:

[0064] 1. Easy and stable installation:

[0065] The compression upright 2 and the adjustable tie rod 3 are connected to the cast-in-place building structure 12 by the fixed structure 7, which facilitates the positioning of the cantilever main beam 1. The components are tightly connected to ensure that the vertical load is evenly transmitted and can provide stable support for the scaffolding.

[0066] 2. High flexibility and good adjustability:

[0067] The adjustable tie rod 3 has a simple structure. By adjusting the length of the telescopic tube 302 inside the telescopic sleeve 301, the length of the adjustable tie rod 3 can be adjusted to meet the needs of different construction stages for changes in the elevation of the cantilever scaffold.

[0068] 3. Able to balance forces:

[0069] The compression upright 2 bears the compressive force, while the adjustable tie rod 3 primarily bears the tensile force. This effectively balances the vertical forces on the scaffold, preventing excessive displacement of the support structure, improving overall rigidity, and avoiding scaffold swaying or local instability. The adjustable tie rod 3 converts the bending moment of the cantilever beam into axial force, resulting in clear force transmission, good stress performance, and lightweight construction. By adjusting the tie rod length, pre-tension can be applied to reduce the deflection of the cantilever main beam 1. The double I-beams (cantilever main beam 1 + compression upright 2) form a spatial rigidity skeleton, enhancing lateral displacement resistance and helping to maintain the stability of the cantilever support structure.

[0070] 4. Protect the integrity of precast components:

[0071] The cantilevered scaffolding support structure is connected to the cast-in-place building structure 12 through the anchoring structure. The cantilevered section 101 of the cantilevered main beam 1 extends out of the precast component 13, avoiding damage to the structure of the precast component 13 by the on-site embedded anchors and ensuring the structural integrity of the precast component 13.

[0072] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0073] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A cantilevered scaffold adjustable support structure, provided on a cast-in-situ structure (12) of a building, for carrying a cantilevered scaffold, characterized in that, include: The cantilever main beam (1) includes a fixed section (102) and a cantilever section (101), the cantilever section (101) being used to support the cantilever scaffolding; The pressure-bearing upright (2) and adjustable tie rod (3) are installed below the fixed section (102). The upper end of the pressure-bearing upright (2) is connected to the front end of the fixed section (102). The front end of the fixed section (102) is close to the cantilever section (101). The upper end of the adjustable tie rod (3) is connected to the rear end of the fixed section (102). The bottom ends of the pressure-bearing upright (2) and the adjustable tie rod (3) are provided with a fixing structure (7), which is connected to the cast-in-place building structure (12) through the fixing structure (7). The adjustable tie rod (3) includes a telescopic sleeve (301) and a telescopic tube (302) movably disposed within the telescopic sleeve (301). By adjusting the length of the telescopic tube (302) within the telescopic sleeve (301), the length of the adjustable tie rod (3) can be adjusted. By adjusting the length of the tie rod, the requirements of the elevation change of the cantilever scaffold at different construction stages can be adapted, and a pre-tension can be applied to reduce the deflection of the cantilever main beam (1).

2. The adjustable support structure of a cantilevered scaffold according to claim 1, wherein: The upper and lower sides of the cantilever main beam (1) are provided with bolted steel pressure plates (4) and thick steel plates (5) in parallel. The cantilever main beam (1) is locked and fixed by the connecting bolts (6) between the bolted steel pressure plates (4) and the thick steel plates (5).

3. The adjustable support structure of a cantilevered scaffold according to claim 1, wherein: The adjustable pull rod (3) includes two telescopic tubes (302), one end of which is inserted into the end of the telescopic sleeve (301).

4. The adjustable support structure of a cantilevered scaffold according to claim 1, wherein: The adjustable rod (3) also includes two double lug plates (8), which are respectively hinged to the other end of the telescopic tube (302).

5. The adjustable support structure of a cantilevered scaffold according to claim 1, wherein: The telescopic sleeve (301) is provided with an internal thread, and the outer wall of the telescopic tube (302) is provided with an external thread that matches the internal thread. The telescopic tube (302) is provided in the telescopic sleeve (301) through a threaded connection. Rotating the telescopic tube (302) adjusts the extension or retraction of the adjustable pull rod (3).

6. The adjustable support structure of a cantilevered scaffold according to claim 1, wherein: The central axis of the pressure-bearing upright (2) is parallel to the central axis of the adjustable tie rod (3). The adjustable support structure of the cantilever scaffold is provided with multiple pressure-bearing uprights (2) for replacement. The multiple pressure-bearing uprights (2) are respectively adapted to the adjustable tie rod (3) for adjusting length.

7. The adjustable support structure of a cantilevered scaffold according to claim 1, wherein: The central axis of the telescopic tube (302) coincides with the central axis of the telescopic sleeve (301).

8. An adjustable support system for cantilever scaffolding, characterized in that: The building cast-in-place structure (12) has structural beams or slabs that are adapted to the fixed structure (7). The adjustable support structure for cantilever scaffolding according to any one of claims 1 to 7, wherein the fixing structure (7) at the bottom end of the pressure-bearing upright (2) and the adjustable tie rod (3) is fixed to the anchoring structure, and the cantilever section (101) extends out of the cast-in-place building structure (12).

9. The adjustable support system for a cantilevered scaffold of claim 8, wherein: A precast component (13) is provided on one side of the cast-in-place building structure (12). The precast component (13) is transported to the construction site and inserted into the outer wall of the cast-in-place building structure (12). After the connection is partially poured, it forms an integral part with the cast-in-place building structure (12).

10. The adjustable support system for a cantilevered scaffold of claim 8, wherein: The anchoring structure includes a U-shaped steel bar (9), and the fixing structure (7) includes a connecting plate (701) and a fastener (702). The connecting plate (701) has a fixing hole adapted to the U-shaped steel bar (9). The end of the U-shaped steel bar (9) passes through the fixing hole and is locked by the fastener (702).

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