Apparatus and method for attaching a hanger

Abstract

This invention discloses an attachment and construction method for a suspension frame, including a suspension frame and a wall-mounting device. The side of the suspension frame closest to the building wall is fixed to the building via the wall-mounting device. The wall-mounting device serves as the main load-bearing structure, and multiple wall-mounting devices are used to fix the suspension frame to the building, eliminating the need for cantilevered steel beams. It also eliminates the need to drill holes in the exterior wall of the cantilever layer for installing cantilevered steel beams or to pre-embed fasteners for cantilevered steel beams in the main floor, thus improving the efficiency of the suspension frame's connection. It also solves the potential for leakage on the facade caused by later repairs of holes. The suspension frame, from bottom to top, includes a bottom horizontal truss, scaffolding, and a transition layer. When erecting the suspension frame, the transition layer connects to the bottom horizontal truss of the second suspension frame, enabling rapid erection of the second suspension frame. During disassembly, the transition layer is first removed to disconnect the two suspension frames, facilitating the disassembly of the first suspension frame and improving the efficiency of installation and disassembly.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a device and construction method for attaching a suspension frame. Background Technology

[0002] Cantilever scaffolding is a type of construction scaffolding erected using a support structure that cantilevered onto a building. Cantilever scaffolding overcomes the height limitations of ground-supported scaffolding and has a simpler construction process compared to lifting scaffolding. Cantilever scaffolding includes traditional cantilever scaffolding and basket-type cantilever scaffolding, both of which consist of cantilevered steel beams and coupler-type steel pipe scaffolding. The cantilevered steel beams serve as the load-bearing structure of the coupler-type steel pipe scaffolding.

[0003] Traditional cantilever scaffolding uses cantilevered steel beams, one end of which is fixed to the interior of the cantilevered floor, while the other end extends to the exterior of the building. Coupler-type steel pipe scaffolding is erected on these cantilevered steel beams. During construction, holes are drilled in the exterior wall of the cantilevered floor to install the beams. Hundreds of beams are then installed one by one into these holes. The fixed end of the beam extends through these holes into the interior of the cantilevered floor and is secured to the main building structure via pre-embedded U-shaped anchor rings. These holes damage the building's concrete beams and slabs, and the cantilevered beams extending into the interior severely hinder the work of construction workers. Furthermore, fixing the beams through the walls damages the concrete beams and slabs, increasing the risk of floor leaks. The large size and number of holes used to pass through the beams also significantly impact the work. The structural quality of the building is compromised. After the cantilevered steel beams are removed, the holes need to be repaired one by one, increasing the risk of leakage in the exterior walls due to the repair work. In addition, the installation and removal of cantilevered steel beams are high-altitude operations, posing serious safety hazards. During the removal of cantilevered steel beams, workers are located outdoors and far from the hoisting position. A single cantilevered steel beam is 3-5 meters long. During the installation and removal of cantilevered steel beams, tower cranes are used to insert or remove them one by one. However, the over-reliance on tower cranes during the removal of cantilevered steel beams can easily lead to imbalance and cause safety accidents. Therefore, the removal of cantilevered steel beams is very difficult, especially those located on stair landings, connecting beams, or corner bay windows, which are 7-9 meters long and cannot be removed as a whole. They need to be cut into sections for removal, which seriously affects the efficiency of the removal of cantilevered steel beams.

[0004] During the construction of the flower basket cantilever scaffold, bolt holes need to be pre-drilled in the exterior wall of the building. The ends of the cantilevered steel beams are connected to the pre-drilled bolt holes through two through-wall bolts to connect the cantilevered steel beams to the outside of the building's structural beams. A building requires a large number of cantilevered steel beams, and each cantilevered steel beam requires two through-wall bolts for installation. Furthermore, the location of the pre-drilled bolt holes is critical, resulting in very low installation efficiency for the cantilevered steel beams. Secondly, the high-altitude installation and dismantling of the cantilevered steel beams of the flower basket cantilever scaffold poses serious safety hazards. During installation and dismantling, workers stand on the cantilevered steel beams in mid-air, securing them to the tower crane for lifting them off the building. This is especially true when dismantling corner cantilevered steel beams. Workers straddle the corner cantilevered steel beams, lean out to loosen the bolts at the corner, then use steel wire ropes to secure the corner cantilevered steel beams and assist the tower crane in lifting the corner cantilevered steel beams off the building. Workers dismantle the cantilevered steel beams while suspended in mid-air, with only safety ropes for protection. If they slip or feel unwell, accidents can easily occur. Summary of the Invention

[0005] To address the problems of cumbersome construction and damage to the main structure of existing cantilever scaffolds, this invention provides an attachment suspension frame device and construction method, which improves the construction efficiency and safety of the attachment suspension frame by changing the structure of the existing cantilever scaffold.

[0006] This invention is achieved through the following technical solution:

[0007] An attachment device for a suspension frame includes a suspension frame and wall-mounting devices, wherein the side of the suspension frame closest to the building wall is fixed to the building via multiple wall-mounting devices;

[0008] The suspension frame includes a bottom horizontal truss, with a scaffold erected on top from bottom to top. A transition layer is installed on the top of the scaffold, which is used to connect the bottom horizontal truss of the second suspension frame.

[0009] Preferably, the bottom horizontal truss includes uprights, horizontal bars, diagonal braces, and a lower main frame section;

[0010] Multiple lower main frames are set longitudinally along the exterior wall of the building and are respectively set at the corresponding positions of the machine. Two adjacent uprights along the longitudinal direction of the exterior wall of the building, as well as the main frame sections and uprights, are connected by horizontal bars. Two adjacent uprights in the transverse direction are connected by horizontal bars, and diagonal tie rods are set between two adjacent uprights.

[0011] Preferably, the lower main frame includes uprights, horizontal bars, and diagonal braces. Two uprights are arranged longitudinally along the building wall. The upper and lower parts of the two uprights are fixedly connected by horizontal bars to form a rectangular frame structure. The two ends of the diagonal braces are fixedly connected to the two opposite corners of the main frame section, respectively.

[0012] Preferably, the scaffolding is a coupler-type steel pipe scaffolding, which includes multi-step scaffolding. The lower end of the lowest step scaffolding is connected to the bottom horizontal truss, and adjacent steps of the scaffolding are interlocked. The transition layer is interlocked with the uppermost step scaffolding.

[0013] Preferably, each step of the scaffolding includes a frame structure constructed from vertical steel pipes, horizontal steel pipes, and an upper main frame;

[0014] The upper main frame includes two horizontally spaced vertical steel pipes. The upper and lower ends of the two vertical steel pipes are connected by horizontal steel pipes. On the side of the building, a number of stops are arranged from top to bottom on the vertical steel pipe. The stops are arranged radially along the vertical steel pipe, and the two ends of the stops extend out of the outer wall of the vertical steel pipe.

[0015] Preferably, the transition layer includes multiple transition frames, which are spaced apart and installed on the top of the scaffold.

[0016] Preferably, the wall-mounting device includes a wall-mounting support, a clamping plate assembly, and a top support;

[0017] One end of the wall-mounted support is connected to the building, and the clamping plate assembly is detachably installed on the other side of the wall-mounted support. The clamping plate assembly is used to wrap around the main frame of the suspension frame. When the clamping plate assembly wraps around the vertical steel pipe of the main frame, the stop bar is pressed against the top of the clamping plate assembly, and the top support is rotatably installed on the wall-mounted support. The free end of the top support is engaged with another stop bar.

[0018] Preferably, the card plate assembly includes two symmetrically arranged card seats, which are detachably connected to the ends of the wall-mounted support. Each card seat includes a fixing plate and a card plate, with the card plate disposed on the fixing plate. The contact surface between the card plate and the vertical steel pipe is provided with an arc-shaped groove.

[0019] Preferably, a locking block is provided at the end of the card plate away from the wall support.

[0020] A method for constructing a device for attaching a suspension bracket includes the following steps:

[0021] Step 1: Construct the bottom horizontal truss of the first attached suspension frame in the layout area;

[0022] Step 2: On the top of the bottom horizontal truss, build each scaffold layer by layer from bottom to top according to the construction progress. Install wall-mounted devices at the pre-embedded positions on the exterior wall of the building according to the scaffolding's construction height, and connect them to the attached suspension frame.

[0023] Step 3: After the scaffolding is erected, install the transition layer on top of the scaffolding to complete the erection of the first attached suspension frame;

[0024] Step 4: Construct the bottom horizontal truss of the second attached suspension frame on the top of the transfer layer, and repeat steps 2 and 3 until the second attached suspension frame is constructed.

[0025] Step 5: Remove the conversion layer of the first attachment suspension frame, disconnect the connection between the first attachment suspension frame and the second attachment suspension frame, and use the components of the first attachment suspension frame for the construction of the third attachment suspension frame.

[0026] Step 6: Repeat steps 4 and 5 until the entire building's attachment suspension system is completed.

[0027] Compared with the prior art, the present invention has the following beneficial technical effects:

[0028] This invention provides a device for attaching a suspension frame, comprising a suspension frame and wall-mounting devices. The suspension frame, from bottom to top, includes a bottom horizontal truss, scaffolding, and a transition layer. The wall-mounting devices serve as the primary load-bearing structure, and the suspension frame is fixedly connected to the building via multiple wall-mounting devices. This eliminates the need for cantilevered steel beams and also eliminates the need for holes in the exterior wall of the cantilever layer for installing cantilevered steel beams, as well as the need for pre-embedded fasteners for cantilevered steel beams in the main floor slab, thus improving the efficiency of the suspension frame's connection. Furthermore, it solves the potential for leakage on the exterior facade caused by later repairs of holes. The entire suspension frame is fixed by a wall-mounted device, thus eliminating the problem of I-beams extending into the interior of the building and affecting indoor construction. This improves the overall construction efficiency and reduces construction costs. In addition, the suspension frame consists of a bottom horizontal truss, scaffolding, and a transition layer from bottom to top. When erecting the suspension frame, the transition layer is used to connect the bottom horizontal truss of the next suspension frame, enabling the rapid erection of the next suspension frame. When dismantling, the transition layer is removed first to disconnect the connection between the two suspension frames, facilitating the dismantling of the previous suspension frame and improving the installation and dismantling efficiency of the suspension frame.

[0029] Furthermore, the wall-mounted device is equipped with two anti-fall structures. The first is a support groove on the top support, where the two ends of the stop bar are locked in the support groove under the action of gravity, forming the first anti-fall function for the suspension frame. The clamping plate assembly wraps around the vertical steel pipe and connects to the wall-mounted support. At the same time, the stop bar is pressed against the clamping plate assembly to form the second anti-fall. The two anti-fall structures achieve a stable connection between the suspension frame and the wall-mounted device. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the attachment suspension frame of the present invention;

[0031] Figure 2 This is a schematic diagram of the bottom horizontal truss of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of the adapter frame of the present invention;

[0033] Figure 4 This is a schematic diagram illustrating the installation of the wall-mounted device of the present invention in relation to a building;

[0034] Figure 5 This is a schematic diagram of the wall-mounting device of the present invention;

[0035] Figure 6 This is a side view of the wall-mounting device of the present invention;

[0036] Figure 7 This is a schematic diagram of the card holder structure of the present invention;

[0037] Figure 8 This is a schematic diagram of the top support structure of the present invention.

[0038] In the diagram: 1. First bottom horizontal truss; 2. Scaffolding; 3. Transfer layer; 4. Second bottom horizontal truss; 5. Lower main frame; 6. Wall attachment device; 7. Mesh panel; 8. Mesh panel connector; 10. Building; 11. Diagonal brace; 12. Upright; 13. Horizontal crossbar; 14. Transverse crossbar; 15. Diagonal tie rod; 30. Transfer frame; 31. Transfer rod; 32. Connecting rod; 51. Vertical steel pipe; 52. Stop bar; 60. Through-wall bolt; 61. Triangular support seat; 62. Top support; 63. Card seat; 64. Base; 65. Diagonal brace; 66. Connecting seat; 67. Horizontal brace; 68. Locking block; 621. Support groove; 622. Blocking surface; 631. Fixing plate; 632. Card plate; 633. Arc-shaped groove. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings. These descriptions are intended to explain the invention and not to limit it.

[0040] See Figure 1 An attachment device for a suspension frame includes a suspension frame and wall attachment devices. The side of the suspension frame close to the building wall is fixed to the building by multiple wall attachment devices. The suspension frame includes a bottom horizontal truss, on which a scaffold 2 is installed. A transition layer 3 is installed on the top of the scaffold 2. The transition layer 3 is used to connect the bottom horizontal truss of the next suspension frame.

[0041] This attached suspension system uses wall-mounted devices as the main load-bearing structure. Multiple wall-mounted devices securely connect the suspension system to the building, eliminating the need for cantilevered steel beams. This also eliminates the need for holes in the exterior wall of the cantilevered floor for installing cantilevered steel beams and for pre-embedded fasteners in the main floor slab, improving the efficiency of the suspension system's connection. Furthermore, it eliminates the risk of facade leakage caused by later repairs of holes. Secondly, the use of wall-mounted devices to fix the entire suspension system body eliminates the problem of I-beams extending into the interior floor and affecting indoor construction, improving overall construction efficiency and reducing costs. In addition, the suspension system, from bottom to top, includes a bottom horizontal truss, scaffolding, and a transition layer. During installation, the transition layer connects to the bottom horizontal truss of the second suspension system, enabling rapid installation of the second suspension system. During disassembly, the transition layer is first removed to disconnect the first and second suspension systems, facilitating the removal of the first suspension system and improving the efficiency of installing and dismantling the lower-level suspension systems.

[0042] See Figure 2 The bottom horizontal truss includes uprights 12, horizontal crossbars 13, transverse crossbars 14, diagonal braces, and lower main frame 5. Based on the machine location layout diagram of the suspension frame for this project, the lower main frame 5 is installed at the installation positions of each machine location. Multiple lower main frames are set longitudinally along the exterior wall of the building. Two adjacent uprights 12 along the exterior wall of the building, as well as the main frame section and uprights 12, are connected by horizontal crossbars 13. Two adjacent uprights 12 are connected by transverse crossbars 14. Diagonal braces 15 are set between two adjacent uprights 12, and the two adjacent diagonal braces 15 are distributed in a figure-eight pattern. Corner frame structures are set at the corners of the building. The entire bottom horizontal truss forms a grid-shaped frame structure. The entire bottom horizontal truss is connected in the X, Y, and Z axes in three-dimensional space to form a three-dimensional truss.

[0043] The lower main frame includes uprights 12, horizontal bars 14, and diagonal braces 11. The two uprights 12 are arranged longitudinally along the building wall. The upper and lower parts of the two uprights 12 are fixedly connected by the horizontal bars 14 to form a rectangular frame structure. The diagonal braces 11 are inclined between the two uprights 12, and the two ends of the diagonal braces are fixedly connected to the two opposite corners of the main frame section.

[0044] The upright 12 includes a three-way upright and a four-way upright. Connecting components are provided at the upper and lower parts of the upright 12. The connecting components of the four-way upright include four connecting plates, which are evenly distributed around the circumference. The connecting components of the three-way upright include three connecting plates. Two connecting plates are symmetrically arranged longitudinally along the axis of the upright, and the other connecting plate is arranged laterally. The included angle between two adjacent connecting plates is 90°. Multiple bolt holes are provided at intervals on the connecting plates. Connecting plates are provided at both ends of the horizontal crossbar 13 and the transverse crossbar 14. The connecting plates on both sides of the upright 12 are stacked with the connecting plates of the horizontal crossbar 13 and connected by bolts. The connecting plates arranged laterally on the upright 12 are stacked with the connecting plates of the transverse crossbar 14 and connected by bolts.

[0045] The scaffolding 2 is a coupler-type steel pipe scaffolding, which includes multiple scaffolding steps from bottom to top. The plan layout of each scaffolding step is the same as the layout of the bottom horizontal truss 1. The bottommost scaffolding is connected to the top of the bottom horizontal truss. The number of scaffolding steps is set according to the height of the suspension frame. According to the design specifications, the cantilever height of the suspension frame in residential buildings is less than 20m, which is generally the height of 6 floors. Therefore, the scaffolding is composed of 6 scaffolding steps erected sequentially from bottom to top.

[0046] Each step of the scaffolding includes vertical steel pipes, horizontal steel pipes, and an upper main frame. Multiple upper main frame vertical frames are set longitudinally along the exterior wall of the building and are positioned at corresponding locations for each machine. The upper main frame vertical frames are connected to adjacent vertical steel pipes, as well as two longitudinally adjacent vertical steel pipes, by horizontal steel pipes. Two horizontally arranged vertical steel pipes are connected by horizontal steel pipes. Each connection node is connected by cross couplers to form each step of the scaffolding. The lower end of the lowest scaffolding is connected to the upper end of the upright of the bottom horizontal truss by butt couplers.

[0047] The upper vertical frame includes two horizontally spaced vertical steel pipes and guide rail uprights. The upper and lower ends of the two vertical steel pipes are connected by horizontal steel pipes. On the side of the vertical steel pipe 51 closest to the building's exterior wall, multiple stop bars 52 are arranged sequentially from top to bottom. The stop bars 52 are arranged radially along the vertical steel pipe 51, and both ends of the stop bars 52 extend out of the outer wall of the vertical steel pipe 51. The stop bars are used to connect the wall-mounted device.

[0048] The transition layer 3 includes multiple rectangular frame transition frames 30. The multiple transition frames 30 are arranged horizontally at intervals on the top of the uppermost scaffold. The bottom of the transition frame 30 is connected to the scaffold layer by fasteners, and the top of the transition frame 30 is connected to the bottom horizontal truss of the next cantilever by cross fasteners. The transition frame can quickly connect to the next suspension frame, improving the construction efficiency of the suspension frame.

[0049] See Figure 3The adapter frame 30 includes adapter rods 31 and connecting rods 32. The adapter rods 31 are rectangular tubes and the connecting rods 32 are round tubes. The four adapter rods 31 are arranged in a rectangular shape. The ends of the four adapter rods are connected in sequence through the four adapter rods 31 to form a rectangular frame structure. In use, the connecting rods 32 are arranged longitudinally.

[0050] In another embodiment, the transition layer 3 includes multiple screw assemblies, each including a double-ended screw and sleeves fitted at both ends of the screw. A wrench is provided on the sleeve, and rotating the wrench drives the sleeve to move along the axial direction of the screw. In use, the sleeve at the lower end of the screw is connected to the upright of the scaffold, and the sleeve at the upper end of the screw is connected to the upright of the bottom horizontal truss of the next cantilever. During installation, the screw assemblies are first installed at the four corners of the scaffold, then the remaining screw assemblies are installed, and finally the length of all screw assemblies is adjusted.

[0051] In another embodiment, the transition layer 3 includes multiple sleeves, the lower end of which is sleeved with the upright of the scaffold layer, and the upper end of which is sleeved with the upright of the bottom horizontal truss of the next suspension frame.

[0052] To ensure the safety and convenience of using the suspended scaffolding, walkways are laid on top of each scaffolding level to form a working surface. A protective structure is installed on the exterior of the suspended scaffolding, including mesh panels 7 and enclosed flaps. Isolation and protection are provided between the working surface and the structure, with hinges connecting the scaffold panels and flaps to prevent people from slipping and falling, and to prevent injuries from falling objects. The suspended scaffolding is also equipped with external protection, with mesh panels hung along the perimeter of the building.

[0053] See Figure 5-8 The structure and working principle of the wall-mounted device will be explained in detail below.

[0054] The wall-mounted device 6 includes a wall-mounted support, a clamping plate assembly, and a top support 62. One end of the wall-mounted support is connected to the building wall. The clamping plate assembly is detachably mounted on the other side of the wall-mounted support. The clamping plate assembly wraps around the vertical steel pipe 51 of the upper vertical frame near the wall, and the stop bar of the vertical steel pipe is pressed against the top of the clamping plate assembly. The top support is rotatably mounted on the wall-mounted support, and the free end of the top support is engaged with another stop bar.

[0055] The clamping plate assembly of the wall-mounted device wraps around the vertical steel pipe and is fixedly connected to the wall-mounted support, forming a stable connection between the wall-mounted device and the vertical steel pipe. Under the action of gravity, the stop bar of the vertical steel pipe presses against the top of the clamping plate assembly, forming the first anti-fall structure. The lower end of the top support is rotatably connected to the wall-mounted support, and the upper end of the top support is a free end, which is clamped to another stop bar, forming the second anti-fall function. The clamping plate assembly uses a wrapping connection to form an anti-tilting structure with the vertical steel pipe, which can increase the contact surface of the vertical steel pipe, improve the stability of the vertical steel pipe, and prevent the vertical steel pipe from tilting. Through the two anti-fall and anti-tilting structures, the stability of the connection between the wall-mounted device and the suspension frame can be effectively improved, preventing the suspension frame from tilting.

[0056] See Figure 7 The clamping plate assembly includes two symmetrically arranged clamping seats 63, which are detachably connected to the wall-mounted support. The two clamping seats can encircle the vertical steel pipe. Each clamping seat includes a fixing plate 631, clamping plates 632, and locking blocks 65. Multiple clamping plates 632 are spaced vertically on the fixing plate. The contact surface between the clamping plates and the vertical steel pipe has an arc-shaped groove 633. Locking blocks 68 are fixed to the ends of the clamping plates and located between adjacent clamping plates. In use, the clamping plates of the two clamping seats 63 encircle the vertical steel pipe through the arc-shaped grooves. The two locking blocks are connected by fasteners, and finally the two fixing plates are connected to the wall-mounted support. The stop bar located on the upper part of the clamping plate assembly is pressed against the top surface of the upper clamping plate, forming the first anti-fall structure of the wall-mounted device. Secondly, since two clamping plates are used to fix the vertical steel pipe, the clamping plates and the vertical steel pipe are fixed at multiple points from top to bottom, which increases the contact area of ​​the fixation, effectively preventing the vertical steel pipe from tilting, thereby improving the anti-tilting ability of the entire suspension frame, avoiding the suspension frame from tipping over, and improving the safety of the suspension frame.

[0057] To increase the friction between the clamping plate assembly and the vertical steel pipe, a resistance structure for increasing friction is set between the clamping plate assembly and the vertical steel pipe. The resistance structure is an anti-slip texture set on the vertical steel pipe, or a rubber sleeve fitted on the vertical steel pipe, or a rubber layer fixedly set in the arc-shaped groove, with the rubber layer bonded to the surface of the arc-shaped groove 633.

[0058] See Figure 6 The wall-mounted support includes a base 64, a triangular support 61, and a connecting seat 66. The triangular support 61 is arranged longitudinally, and one end of the triangular support 61 is fixedly connected to one side of the base 64. The connecting seat 66 is fixed to the other end of the triangular support 61 and is used to connect the card seat 63. The connecting seat 66 is provided with bolt holes, and the fixing plate 631 is fixedly connected to the connecting seat. The upper part of the base 64 is provided with bolt holes and is connected to the building wall through through-wall bolts 60.

[0059] The triangular support 61 includes a horizontal beam 67 and a diagonal brace 65. The horizontal beam 67 is arranged longitudinally, with one end welded to the base and the other end welded to the mating seat 66. The diagonal brace 65 is set at an inclination of 45° at the bottom of the horizontal beam 67. One end of the horizontal beam 67 is welded to the base, and the other end of the horizontal beam 67 is welded to the end of the horizontal beam 67, thus forming the triangular support 61.

[0060] The through-wall bolt is a double-ended threaded rod. Before the concrete is poured, a pre-embedded hole is set and a PVC sleeve is installed. The threaded rod is inserted into the PVC sleeve. One end of the double-ended threaded rod is connected to the base through a pad, and the other end is connected to the indoor side of the wall through a washer. The base is welded from steel plate and channel steel, which can save more steel.

[0061] See Figure 8 The top support includes a support head, an adjusting screw, and a rotating seat. The lower end of the rotating seat is rotatably connected to the top of the triangular support seat 61 via a pin and is located at one end near the locking seat 63. The two ends of the adjusting screw are connected to the support head and the rotating seat respectively. The support head has a support groove 621 with a top opening on the side near the vertical steel pipe. The top of the support head 62 and the side near the vertical steel pipe form an arc-shaped blocking surface 622. When the support groove is engaged with the two ends of the stop bar at the same height, the blocking surface 622 is used to abut against the side wall of the vertical steel pipe to form a second anti-fall structure.

[0062] Compared with traditional cantilever scaffolding, the attachment suspension frame of this invention has the following advantages:

[0063] This attachment suspension frame is connected to the building's exterior wall using a wall-mounted device. The wall-mounted device is connected to the wall using a through-wall bolt. Each wall-mounted device only needs to have one pre-embedded hole reserved at its corresponding wall position. Compared to the traditional method of fixing through-wall cantilevered steel beams in cantilevered scaffolding, which requires opening a large number of I-beam holes in the cantilever layer, the number and diameter of the pre-embedded holes in this invention are much smaller than the size and number of holes. Therefore, it can greatly reduce damage to the main structure of the building and greatly reduce the risk of exterior wall leakage caused by repairing the cantilevered steel beam openings.

[0064] Secondly, the through-wall cantilever steel beam needs to extend into the interior of the cantilever floor and be fixed by U-shaped embedded parts on the floor, which will damage the floor and affect the cleaning and construction work of the indoor construction workers. However, the wall-mounted device of the present invention is a support installation layer located outside the building, which avoids the hidden danger of leakage of the exterior wall caused by repairing the opening later. At the same time, it will not affect the interior construction of the cantilever floor. The interior decoration of the cantilever floor can be completed in one go, shortening the construction cycle, reducing decoration costs, and improving the construction efficiency of the entire building.

[0065] In addition, traditional cantilever scaffolds use hundreds of cantilevered steel beams as support structures, with a maximum spacing of 1.5m between adjacent cantilevered steel beams. Therefore, hundreds of cantilevered steel beams need to be installed on the cantilever layer, and the length of the cantilevered steel beams is greater than 3m, resulting in a huge amount of I-beams. This invention uses a wall-mounted device to connect the attached suspension frame, replacing the traditional method of fixing the cantilevered steel beams through the wall with an attachment and fixing method. The wall-mounted device serves as the support structure of the suspension frame, changing the connection method of the traditional cantilever frame. A bottom horizontal truss is used to replace the cantilevered steel beams, saving the cantilevered steel beams and reducing construction costs.

[0066] Compared with existing flower basket cantilever frames, the attachment and suspension frame of this invention has the following advantages:

[0067] The cantilevered steel beams of the flower basket cantilever frame are wall-mounted, with each end of the cantilevered steel beam connected to a pre-drilled bolt hole via two through-wall bolts. In contrast, the wall-mounting device of this invention uses only one through-wall bolt, and the number of wall-mounting devices is far less than the number of cantilevered steel beams, thus reducing damage to the building walls. Secondly, although the cantilevered steel beams of the flower basket cantilever frame are fixed to the building's exterior wall with two through-wall bolts, which shortens the length of the I-beams, their length still reaches 1-2 meters. For example, if each beam is 1.4 meters long, the total weight is 4200 kg. In contrast, the total weight of all wall-mounting devices in this invention is 2640 kg. Therefore, using the attachment suspension frame of this invention saves steel compared to the flower basket cantilever frame.

[0068] In addition, since the wall-mounted cantilevered steel beam is connected to the wall with two bolts, the position of the reserved hole is very important, resulting in very low installation efficiency of the cantilevered steel beam. However, the present invention uses a wall-mounted device to connect the suspension frame. The wall-mounted device is connected to the wall through a through-wall bolt, which can effectively improve the construction efficiency of the suspension frame.

[0069] The following is a detailed description of the construction method of the attachment suspension device provided by the present invention, including the following process:

[0070] Step 1: Based on the plan design of the attached suspension frame, construct the first bottom horizontal truss 1 at the layout position on the exterior wall of the building, and erect scaffolding boards on the first bottom horizontal truss 1.

[0071] Specifically, there are two methods for constructing the first bottom horizontal truss. One method involves assembling the truss on a designated truss construction platform and then hoisting the assembled first bottom horizontal truss 1 to the layout position as a whole. The other method is to construct it piecemeal, directly constructing the first bottom horizontal truss at the layout position. The construction process for both methods is the same, as detailed below:

[0072] Based on the plan layout of the attached suspension frame of the building project, it is assembled using uprights 12, horizontal crossbars 13, transverse crossbars 14 and the lower main frame 5. The horizontally arranged uprights 12 are connected by horizontal crossbars 13, and the longitudinally arranged uprights 12 are connected by transverse crossbars 14. Diagonal braces 11 are installed on the diagonal of two adjacent uprights in the inner and outer rows to form a grid-shaped bottom horizontal truss. Corner frame structures are set at the corners of the building.

[0073] Step 2: On the top of the first bottom horizontal truss 1, build each scaffold layer by layer from bottom to top according to the construction progress.

[0074] The scaffolding is constructed using vertical steel pipes, horizontal steel pipes, an upper main frame, cross couplers, and butt couplers. The planar structure of the scaffolding is the same as that of the first bottom horizontal truss 1. The ends of the vertical steel pipes of the scaffolding are connected to the uprights of the first bottom horizontal truss or to the vertical steel pipes of the previous scaffolding through butt couplers. The upper main frame and horizontal steel pipes of the scaffolding are connected by cross couplers. The upper main frame is installed at the corresponding position of the machine. The height of each step of the scaffolding is more than half a floor above the construction floor. Shear bracing is arranged on the outside of the scaffolding. The scaffolding is laid on the scaffolding, and the mesh 7 is installed on the outside of the scaffolding through mesh connectors 8.

[0075] The scaffolding is assembled in a modular manner. After the bottom horizontal truss is assembled in a modular fashion on the ground, it is hoisted to the installation position in sections and fixed. Then, according to the construction progress, the coupler-type steel pipe scaffolding is erected layer by layer.

[0076] Step 3: Fix the wall-mounted bracket to the exterior wall of the building, engage the top support of the wall-mounted device with the stop bar of the main frame, connect the clamping plate assembly to the vertical steel pipe, and then fix the clamping plate assembly to the wall-mounted bracket. The stop bar on the vertical steel pipe located above the clamping plate assembly is pressed onto the top of the clamping plate assembly.

[0077] Specifically, multiple wall-mounted devices are installed at each workstation from bottom to top. Starting from the upper floor of the standard floor, wall-mounted supports are installed. Through-wall bolts are inserted into the pre-drilled bolt holes on the building to fix the wall-mounted supports to the wall. The clamping plate assembly is connected to the vertical steel pipe. The clamping plate assembly is fixed to the wall-mounted supports with bolts. The top support is rotated to engage the support groove 621 with the stop bar. The support groove and the stop bar are tightened by adjusting the screw, thus completing the connection between the wall-mounted device and the suspension frame. The wall-mounted supports are installed one by one according to the construction progress. After each floor is constructed, the next scaffolding layer is erected on the current scaffolding layer after moving to the upper floor. This process is repeated until the scaffolding is erected.

[0078] Step 4: Install the transfer layer at the top of the scaffolding, build the second bottom horizontal truss 4 on top of the transfer layer, and repeat steps 2 and 3 until the second attached suspension frame is built.

[0079] For example, the transition layer is a transition frame. Multiple transition frames are installed at intervals on the top of the scaffolding. The transition frames are connected to the scaffolding through cross couplers. Four hoisting ropes are tied to the four corners of the assembled bottom horizontal truss to ensure balance. When lifting, two people hold the bottom horizontal truss on both sides to lift it smoothly. When lowering the hook, two people hold the second bottom horizontal truss on both sides to lower it smoothly onto the transition frame. Cross couplers are used to connect the second bottom horizontal truss and the transition frame to quickly connect the two suspension frames.

[0080] Step 5: Remove the conversion layer of the first attachment suspension frame, disconnect the connection between the first attachment suspension frame and the second attachment suspension frame, and use the components of the first attachment suspension frame for the construction of the third attachment suspension frame.

[0081] The specific method for removing the attached suspension bracket is as follows:

[0082] Based on the position of the lower main frame, the suspension frame is divided into subdivision units. One or two lower main frames are divided into a whole subdivision unit, so that the entire suspension frame is divided into several subdivision pieces. The connection between the units is disconnected, the top support of the wall-mounted device of the dismantling unit is separated from the vertical steel pipe, and the clamping plate assembly is dismantled. Then, the scaffolding is dismantled from top to bottom. After the bottom horizontal truss is dismantled in pieces, the dismantled accessories are used for the construction of the third wall-mounted suspension frame.

[0083] Step 6: Repeat steps 4 and 5 until the entire building's attachment suspension system is completed.

[0084] The suspension frame provided by this invention first uses uprights and a lower main frame to build a bottom horizontal truss. Then, scaffolding is built layer by layer on the bottom horizontal truss according to the construction progress. The vertical steel pipes of the scaffolding are connected to the bottom horizontal truss through butt couplers, which can improve the construction efficiency of the suspension frame. Each position of the entire attached suspension frame is connected to the building with multiple wall attachment devices. Compared with the traditional cantilever frame and the existing new cantilever frame which uses hundreds of cantilever steel beams for fixing, it saves construction time. A transfer layer is set at the top of the scaffolding to connect to the next cantilever frame, realizing the rapid connection between the upper and lower cantilever frames and improving the construction efficiency of the cantilever frame of the entire building.

[0085] In the dismantling process of the suspension frame of this invention, compared with the traditional cantilever frame which requires cutting U-shaped embedded parts and then workers to pull out and lift each cantilever steel beam one by one from the air, the method of this invention only requires dismantling the transition layer. Then, the construction workers can stand on the construction layer to complete the dismantling of the wall-mounted device. The entire suspension frame can be dismantled in units, which improves the efficiency and safety of dismantling the suspension frame.

[0086] In the dismantling process of the suspension frame of this invention, compared with the dismantling process of the flower basket cantilever frame, the cantilever steel beam of the new cantilever frame adopts a wall-attached structure. When dismantling at height, the construction workers need to extend their bodies outdoors, which increases the risk of operation. With the suspension frame of this invention, the construction workers can dismantle the wall-attached device while standing on the construction floor, which improves the safety of the construction workers. In addition, the number of wall-attached devices is far less than the number of cantilever steel beams, which greatly improves the dismantling speed.

[0087] The above content is only for illustrating the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. Any modifications made to the technical solution based on the technical concept proposed in this invention shall fall within the scope of protection of the claims of this invention.

Claims

1. A device for attaching a suspension bracket, characterized in that, Includes a suspension bracket and wall-mounting devices; the side of the suspension bracket closest to the building wall is fixed to the building via multiple wall-mounting devices. The suspension frame includes a bottom horizontal truss (1), and a scaffold (2) is erected on its top from bottom to top. A transition layer (3) is installed on the top of the scaffold (2), and the transition layer (3) is used to connect the bottom horizontal truss (1) of the second suspension frame. The transition layer (3) includes multiple transition frames, which are installed at intervals on the top of the scaffold; Each step of the scaffolding consists of a frame structure built from vertical steel pipes, horizontal steel pipes, and an upper main frame; The upper main frame includes two horizontally spaced vertical steel pipes. The upper and lower ends of the two vertical steel pipes are connected by horizontal steel pipes. The vertical steel pipes on the side closest to the building's outer wall are provided with multiple stops (52) from top to bottom. The stops (52) are arranged radially along the vertical steel pipe (51), and both ends of the stops (52) extend out of the outer wall of the vertical steel pipe (51). The wall-mounting device (6) includes a wall-mounting support, a card plate assembly, and a top support (62). One end of the wall-mounted support is connected to the building, and the clamping plate assembly is detachably installed on the other side of the wall-mounted support. The clamping plate assembly is used to wrap around the main frame of the suspension frame. When the clamping plate assembly wraps around the vertical steel pipe of the main frame, the stop bar is pressed against the top of the clamping plate assembly, and the top support is installed on the wall-mounted support. The free end of the top support is engaged with another stop bar.

2. The device for attaching a suspension bracket according to claim 1, characterized in that, The bottom horizontal truss includes uprights, crossbars and lower main frame (5). Multiple lower main frames are set longitudinally along the exterior wall of the building and are respectively set at the corresponding positions of the machine. Two adjacent uprights along the exterior wall of the building, as well as the main frame and the uprights, are connected by horizontal bars. Two adjacent uprights are connected by horizontal bars, and diagonal bracing (15) is set between two adjacent uprights.

3. The device for attaching a suspension bracket according to claim 2, characterized in that, The lower main frame includes uprights, horizontal bars, and diagonal braces. Two uprights are arranged longitudinally along the building wall. The upper and lower parts of the two uprights are fixedly connected by horizontal bars to form a rectangular frame structure. The two ends of the diagonal braces are fixedly connected to the two opposite corners of the lower main frame.

4. The device for attaching a suspension bracket according to claim 1, characterized in that, The scaffolding is a coupler-type steel pipe scaffolding, which includes multi-step scaffolding. The lower end of the lowest step scaffolding is connected to the bottom horizontal truss. The upper and lower adjacent steps scaffolding are interlocked with each other, and the transition layer is interlocked with the uppermost step scaffolding.

5. The device for attaching a suspension bracket according to claim 1, characterized in that, The card plate assembly includes two symmetrically arranged card seats (63), which are detachably connected to the end of the wall-mounted support. The card seat includes a fixing plate (631) and a card plate (632). Multiple card plates (632) are arranged vertically on the fixing plate at intervals. The contact surface between the card plate and the vertical steel pipe is provided with an arc-shaped groove (633).

6. The device for attaching a suspension bracket according to claim 1, characterized in that, A locking block is provided at the end of the card plate away from the wall support.

7. A construction method for an attachment suspension device according to any one of claims 1-6, characterized in that, Includes the following steps: Step 1: Construct the bottom horizontal truss of the first attached suspension frame in the layout area; Step 2: On the top of the bottom horizontal truss, build each scaffold layer by layer from bottom to top according to the construction progress. Install wall-mounted devices at the pre-embedded positions on the exterior wall of the building according to the scaffolding's construction height, and connect them to the attached suspension frame. Step 3: After the scaffolding is erected, install the transition layer on top of the scaffolding to complete the erection of the first attached suspension frame; Step 4: Construct the bottom horizontal truss of the second attached suspension frame on the top of the transfer layer, and repeat steps 2 and 3 until the second attached suspension frame is constructed. Step 5: Remove the conversion layer of the first attachment suspension frame, disconnect the connection between the first attachment suspension frame and the second attachment suspension frame, and use the components of the first attachment suspension frame for the construction of the third attachment suspension frame. Step 6: Repeat steps 4 and 5 until the entire building's attachment suspension system is completed.

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