Temporary support system and installation method of AAC board

Abstract

According to the temporary supporting system of the AAC board and the installation method, the temporary supporting system can effectively lift the AAC board to the overhanging position through the combination of the winch, the lifting rope and the fixed pulley, and the stability of the AAC board in the installation process is ensured; due to the design of the bottom plate and the rotatable fixing rod, reliable supporting and limiting are provided for the AAC plate, and the difficulty and risk of manual operation are reduced; through cooperation of the supporting arms and the limiting rods, the fixing effect of the AAC board is further enhanced, the structural safety of the AAC board in the overhanging state is guaranteed, meanwhile, the installation precision and the construction efficiency are improved, factory-like wallboard prefabrication and mechanical hoisting are combined, the construction efficiency is greatly improved, and the construction period is shortened. The method is suitable for the installation of AAC wallboards of various building outer wall local cantilever structures, and has wide applicability.

Description

Technical Field

[0001] The invention belongs to the technical field of building exterior wall construction, and particularly relates to a temporary support system and an installation method of an AAC board. Background Art

[0002] AAC (Autoclaved Aerated Concrete) wall panels are widely used in building exterior walls due to their excellent properties such as light weight, thermal insulation, sound insulation, and fire resistance. However, with the development of architectural design concepts, indoor spaces are gradually developing towards high-rise and large cantilevers. AAC wall panels have also become large in size and long in length. Especially when used in local cantilever structures (such as balconies, awnings, decorative eaves, etc.), they face many technical difficulties. The stress state of the cantilevered part is relatively complex. The traditional installation method is difficult to ensure the structural stability and safety of the wall panels in the cantilevered state, and there are potential safety hazards. At the same time, due to the particularity of the cantilever structure, higher requirements are placed on the installation accuracy of the wall panels. It is difficult for traditional construction methods to achieve accurate positioning, resulting in difficulty in ensuring the installation quality. In addition, traditional construction methods rely on manual operation, which not only has low construction efficiency, but also has high difficulty in operation and high safety risks, making it difficult to meet the efficiency and safety requirements of modern building construction.

[0003] Therefore, there is an urgent need for an efficient, safe and accurate system and installation method for partially cantilevered AAC wall panels on exterior walls. Summary of the invention

[0004] The present invention provides a temporary support system and installation method of an AAC board, which are used to solve the problem of low stability of cantilever wall panels during installation in the prior art.

[0005] In the first aspect, the present invention provides a temporary support system for an AAC board, comprising a frame, a winch fixed on the rear end middle beam of the frame, a fixed pulley provided on the front end top beam of the frame, a lifting rope wound and fixed on the winch, the lifting rope extends longitudinally along the frame to the top end of the front beam and is slidably connected to the fixed pulley, and the other end of the lifting rope is used to cantilever the AAC board; a bottom plate is fixedly connected to the bottom beam of the frame, and the bottom plate is used to support the AAC board; a rotatable fixing rod is installed on the bottom plate, and the rotatable fixing rod is used to limit the AAC board when it is in a vertical state; a support arm is provided in the middle of the frame, and slots are provided on the support arm at equal intervals; the support arm is clamped with the limit rod through the slot, and the limit rod is used to limit the AAC board.

[0006] Compared with the prior art, the advantages of the present invention are as follows: the temporary support system of the AAC board provided by the present invention can effectively lift the AAC board to the cantilever position through the combination of a winch, a lifting rope and a fixed pulley, thereby ensuring its stability during the installation process; the design of the bottom plate and the rotatable fixing rod provides reliable support and position limiting for the AAC board, reducing the difficulty and risk of manual operation; the cooperation of the support arm and the limit rod further enhances the fixing effect of the AAC board, ensuring its structural safety in the cantilever state, while improving the installation accuracy and construction efficiency, realizing the combination of factory prefabricated wall panels and mechanized hoisting, greatly improving construction efficiency and shortening construction period. The present invention is suitable for the installation of AAC wall panels of various partial cantilever structures of building exterior walls, and has a wide range of applicability.

[0007] Furthermore, a handle is fixedly connected to the middle of the frame; the support arm is inserted into the handle and can extend longitudinally along the frame.

[0008] Furthermore, the bottom plate is a telescopic sleeve structure.

[0009] Further, the pulling rope forms a penetration connection or a rope loop connection with the AAC board.

[0010] Furthermore, it also includes a concave block, and when the rotatable fixing rod is rotated to a vertical state, it is engaged with the concave block to achieve limiting.

[0011] In a second aspect, the present invention provides an installation method of an AAC board, which is performed using the temporary support system of the AAC board described in the first aspect, and comprises the following steps: (1) Connect the lifting rope of the temporary support system to the AAC board. After the connection is completed, use the winch to collect the rope and lift the AAC board from a horizontal state to a vertical state; (2) Pull out the retractable bottom plate on the bottom beam, place the AAC board on the bottom plate, and then rotate the rotatable fixing rod to a vertical state to support the AAC board; extend the two side support arms in the middle, and use the limit rod to clamp the support arms to fix the AAC board on the frame; (3) Push the frame to the installation location, align the AAC board with the U-shaped fixture at the installation location, insert the AAC board, and retract the limit rod and support arm; after the U-shaped fixtures on the upper and lower sides of the AAC board are hit, retract the bottom plate, untie the connection between the lifting rope and the AAC wall panel, and complete the installation.

[0012] Furthermore, after step (3), the method further includes: filling bonding mortar at the joints of the AAC board and pressing in glass fiber mesh cloth.

[0013] Furthermore, before step (1), the method further includes: three-dimensionally positioning the AAC board by using a laser level and a total station, adjusting the U-shaped fixture at the position to be installed according to the positioning line, and fixing the U-shaped fixture at the position to be installed by using nails and a nail gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of a temporary support system for an AAC board in an embodiment of the present invention; Figure 2 A schematic diagram of a temporary support system for an AAC panel in another embodiment of the present invention.

[0015] Description of reference numerals: 1. Frame; 2. Winch; 3. Lifting rope; 4. Fixed pulley; 5. Bottom plate; 51. Extension part; 52. Fixing part; 53. Limiting hole; 6. Rotatable fixing rod; 61. Concave block; 7. Support arm; 8. Limiting rod; 9. AAC board; 10. Handle. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] First, see Figure 1 The present invention provides a temporary support system for an AAC board, comprising a frame 1, a winch 2 is fixed on the rear end middle beam of the frame 1, a fixed pulley 4 is provided on the front end top beam of the frame 1, a pulling rope 3 is wound and fixed on the winch 2, the pulling rope 3 extends longitudinally along the frame 1 to the top end of the front beam and is slidably connected to the fixed pulley 4, and the other end of the pulling rope 3 is used to cantilever the AAC board 9; a bottom plate 5 is fixedly connected to the bottom beam of the frame 1, and the bottom plate 5 is used to support the AAC board 9; a rotatable fixing rod 6 is installed on the bottom plate 5, and the rotatable fixing rod 6 is used to limit the AAC board 9 when it is in a vertical state; a support arm 7 is provided in the middle of the frame 1, and a card slot is provided on the support arm 7 at equal intervals; the support arm 7 is clamped with a limit rod 8 through the card slot, and the limit rod 8 is used to limit the AAC board 9.

[0018] The temporary support system of the AAC board provided by the present invention can effectively lift the AAC board 9 to the cantilever position through the combination of the winch 2, the pulling rope 3 and the fixed pulley 4, thereby ensuring its stability during the installation process; the design of the bottom plate 5 and the rotatable fixing rod 6 provides reliable support and limit for the AAC board 9, reducing the difficulty and risk of manual operation; the cooperation of the support arm 7 and the limit rod 8 further enhances the fixing effect of the AAC board 9, ensuring its structural safety in the cantilever state, while improving the installation accuracy and construction efficiency, realizing the combination of factory prefabricated wall panels and mechanized hoisting, greatly improving the construction efficiency and shortening the construction period. The present invention is suitable for the installation of AAC wall panels of various partial cantilever structures of the exterior walls of buildings, and has a wide range of applicability.

[0019] For further information, see Figure 2 A handle 10 is also fixedly connected to the middle of the frame 1 ; the support arm 7 is inserted into the handle 10 and can extend longitudinally along the frame 1 .

[0020] By providing a handle 10 in the middle of the frame 1, the operator can more conveniently move and adjust the position of the support arm 7, further improving the flexibility and convenience of construction. The support arm 7 extends longitudinally along the frame 1 and can adapt to AAC boards of different sizes, thereby enhancing the versatility and adaptability of the system.

[0021] Furthermore, the bottom plate 5 is a telescopic sleeve structure, which is composed of multiple nested sleeves with different diameters, and can be extended and retracted by sliding or rotating, and a spring pin, bolt or knob can be used to fix the length by pressing or rotating, which further improves the stability of the AAC board 9 during installation and the adaptability of the system, simplifies the operation steps, and improves the construction efficiency.

[0022] In a specific embodiment, the base plate 5 includes an extension portion 51 and a fixed portion 52; wherein the fixed portion 52 is fixedly connected to the bottom beam, a spring block is provided at one end of the extension portion 51, and limiting holes 53 with equal spacing are opened at the top of the fixed portion 52, and one end of the extension portion 51 with the spring block is sleeved inside the fixed portion 52, and the spring block is adapted to be snapped into the limiting hole 53.

[0023] Optionally, the pulling rope 3 forms a penetration type connection or a rope loop type connection with the AAC plate 9 .

[0024] Among them, the penetration connection refers to pre-drilling or pre-reserving a hole at a specific position of the AAC board 9, through which the pulling rope 3 directly passes through the AAC board 9 and is fixed on the other side of the board by a fixing device (such as a bolt, a buckle or a knot). The rope loop connection means that the pulling rope 3 does not directly pass through the AAC board 9, but is connected to the AAC board 9 by wrapping or wrapping. Specifically, the rope forms a closed ring structure at a specific position of the AAC board 9 (such as the top or side), and the AAC board 9 is fixed by friction or an auxiliary fixing device (such as a buckle, a hook).

[0025] It also includes a concave block 61, and when the rotatable fixing rod 6 is rotated to a vertical state, it is engaged with the concave block 61 to achieve position limiting.

[0026] Through the clamping design of the concave block 61 and the rotatable fixing rod 6, the position of the rotatable fixing rod 6 in the vertical state can be effectively limited to prevent it from being offset due to external force or vibration, thereby further enhancing the stability of the AAC board 9 during installation.

[0027] In a second aspect, the present invention provides an installation method of an AAC board, which is performed using the temporary support system of the AAC board described in the first aspect, and comprises the following steps: (1) Connect the lifting rope 3 of the temporary support system to the AAC board 9. After the connection and fixation are completed, use the winch 2 to collect the rope and lift the AAC board 9 from the horizontal state to the vertical state; (2) Pull out the retractable bottom plate 5 on the bottom beam, place the AAC plate 9 on the bottom plate 5, and then rotate the rotatable fixing rod 6 to a vertical state to support the AAC plate 9; extend the supporting arms 7 on both sides of the middle part, and use the limiting rod 8 to engage the supporting arms 7 to fix the AAC plate 9 on the frame 1; (3) Push the frame 1 to the installation location, align the AAC board 9 with the U-shaped fixture at the installation location, insert the AAC board 9, and retract the limit rod 8 and the support arm 7; after the AAC board 9 hits the U-shaped fixtures on the upper and lower sides, retract the bottom plate 5, untie the connection between the lifting rope 3 and the AAC wall panel, and complete the installation.

[0028] The installation method of the AAC board provided by the present invention can efficiently and safely lift the AAC board 9 from a horizontal state to a vertical state by using a temporary support system, and ensure the stability and precise positioning of the AAC board 9 during the installation process through the cooperation of the bottom plate 5, the rotatable fixing rod 6 and the support arm 7. The method reduces the difficulty and risk of manual operation, improves the construction efficiency, and is particularly suitable for the installation of complex structures such as high-rise buildings and large cantilevers.

[0029] Furthermore, after step (3), the following step is further followed: filling the joints of the AAC panels 9 with bonding mortar and pressing in glass fiber mesh cloth; this enhances the connection strength and integrity between the AAC panels 9 and improves the seismic resistance and durability of the wall. This step further ensures the installation quality and extends the service life of the building.

[0030] Before step (1), the method also includes: three-dimensionally positioning the AAC board 9 by using a laser level and a total station, adjusting the U-shaped fixture at the installation position according to the positioning line, and fixing the U-shaped fixture at the installation position by using nails and a nail gun; thus, the installation accuracy is improved, the workload of subsequent adjustments is reduced, and the construction quality is ensured.

[0031] A specific embodiment of the present invention (1) Assembling the temporary support system: Install a retractable bottom plate 5 on the assembled frame 1, which can be made of double-layer or triple-layer flat steel to hold the AAC board 9. Install a rotatable fixing rod 6 on the steel pipe of the bottom plate 5 to adjust the position of the AAC wall panel after the AAC board 9 is placed on the bottom plate 5. Install support arms 7 with slots on both sides of the middle of the frame 1 to release the support arms 7 after the AAC board 9 is lifted and vertically erected, and clamp the limit rod 8 in the slot of the support arm 7 to fix the AAC board 9 in the temporary support system.

[0032] (2) Wall panel layout design and processing: According to the size and shape of the cantilevered part, the AAC board 9 is designed and prefabricated in the factory.

[0033] (4) Wall panel preparation: Use mechanical lifting equipment to lift the AAC board 9 to the vicinity of the installation site, and use a transport trolley or other means to transport the wall panel to the installation site.

[0034] (5) Precise positioning: Use a laser level and total station to perform three-dimensional positioning of the wall panels, adjust the U-shaped fixtures according to the positioning lines, and use nails and nail guns to fix the fixtures on the top and bottom plates of the installation location.

[0035] (6) Lifting the wall panel: The lifting rope 3 connected to the winch 2 is connected to the AAC board 9 through the upper fixed pulley 4 of the frame 1. Generally, there are through-type connections and rope loop connections. After the connection is fixed, the winch 2 is used to collect the ropes and lift the AAC board 9 from a horizontal state to a vertical state.

[0036] (7) Fixing the wall panel: After the AAC panel 9 is lifted to a vertical state, the retractable bottom plate 5 on the bottom beam is pulled out, the AAC panel 9 is placed on the bottom plate 5, and then the rotatable fixing rod 6 is rotated to a vertical state to support the AAC panel 9; the supporting arms 7 on both sides of the middle are extended, and the AAC panel 9 is fixed to the frame 1 by means of the limit rod 8 and the support arm 7 being engaged.

[0037] (8) Installing the wall panel: Push the frame 1 to the installation location, align the AAC board 9 with the U-shaped fixture at the installation location, insert the AAC board 9, and retract the limit rod 8 and the support arm 7; after the AAC board 9 hits the U-shaped fixtures on the upper and lower sides, retract the bottom plate 5, untie the connection between the lifting rope 3 and the AAC wall panel, and complete the installation.

[0038] (9) Sealing: Fill the joints of AAC board 9 with special bonding mortar. During the installation process, the mortar should be squeezed fully and fully, and 10mm glass fiber mesh cloth should be pressed in to avoid water leakage and cracks. The verticality and flatness should meet the requirements.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents. If these modifications and variations fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the protection scope of the present invention.

Claims

1. A temporary support system for an AAC board, characterized in that: It includes a frame, a winch is fixed on the middle beam at the rear end of the frame, a fixed pulley is provided on the top beam at the front end of the frame, a pulling rope is wound and fixed on the winch, the pulling rope extends longitudinally along the frame to the top of the front beam and is slidably connected with the fixed pulley, and the other end of the pulling rope is used to cantilever the AAC board; A bottom plate is fixedly connected to the bottom beam of the frame, and the bottom plate is used to support the AAC board; A rotatable fixing rod is installed on the bottom plate, and when the rotatable fixing rod is in a vertical state, it is used to limit the AAC board; A support arm is provided in the middle of the frame, and slots are provided at equal intervals on the support arm; The support arm is clamped with the limit rod through the clamping slot, and the limit rod is used to limit the AAC board.

2. The temporary support system of the AAC board according to claim 1, characterized in that: A handle is also fixedly connected to the middle of the frame; the support arm is inserted through the handle and can extend longitudinally along the frame.

3. The temporary support system of the AAC board according to claim 1, characterized in that: The bottom plate is a telescopic sleeve structure.

4. The temporary support system of the AAC board according to claim 1, characterized in that: The lifting rope forms a through-type connection or a rope loop connection with the AAC board.

5. The temporary support system of the AAC board according to claim 1, characterized in that: It also includes a concave block, and when the rotatable fixing rod is rotated to a vertical state, it is engaged with the concave block to achieve position limiting.

6. A method for installing an AAC board, characterized in that: The temporary support system of the AAC board according to any one of claims 1 to 5 is used, comprising the following steps: (1) Connect the lifting rope of the temporary support system to the AAC board. After the connection is completed, use the winch to collect the rope and lift the AAC board from a horizontal state to a vertical state; (2) Pull out the retractable bottom plate on the bottom beam, place the AAC board on the bottom plate, and then rotate the rotatable fixing rod to a vertical state to support the AAC board; extend the two side support arms in the middle, and use the limit rod to clamp the support arms to fix the AAC board on the frame; (3) Push the frame to the installation location, align the AAC board with the U-shaped fixture at the installation location, insert the AAC board, and retract the limit rod and support arm; after the U-shaped fixtures on the upper and lower sides of the AAC board are hit, retract the bottom plate, untie the connection between the lifting rope and the AAC wall panel, and complete the installation.

7. The method for installing the AAC board according to claim 6, characterized in that: After step (3), the following steps are also included: The joints of the AAC boards are filled with bonding mortar and pressed with fiberglass mesh.

8. The method for installing the AAC board according to claim 7, characterized in that: Before step (1), the following steps are also included: The AAC board is positioned in three dimensions using a laser level and a total station, the U-shaped fixture at the location to be installed is adjusted according to the positioning line, and the U-shaped fixture is fixed to the location to be installed using nails and a nail gun.

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