Filling wall AAC wallboard fast handling construction trolley and construction method thereof

Abstract

This invention belongs to the field of secondary structure construction technology, specifically relating to a rapid transport trolley for AAC wall panels used in infill walls and its construction method. The trolley includes at least one portal frame assembled from scaffolding steel pipes. The bottom of the frame is equipped with casters, and a winch is fixed at the top. The winch's wire rope has hooks at its ends. Multiple lifting units can be connected via scaffolding pipes to increase load capacity. During construction, the wire rope is wrapped around the AAC wall panel and secured with hooks, with rubber sleeves added to the contact points. After lifting off the ground, the stability is checked, and once safety is confirmed, the panel is raised to the transport height. The casters are used for pushing, with the swaying of the wire rope cushioning bumps and the portal frame protecting the wall panel. After reaching the installation position, the winch lowers the wall panel onto sleepers. This invention utilizes modified materials commonly found on-site, effectively solving the problems of difficult transport and easy damage of large-size AAC wall panels. It offers high transport efficiency, good protection of the wall panels, and is economical and widely applicable.

Description

Technical Field

[0001] This invention belongs to the field of secondary structure construction technology, specifically relating to a rapid transport and construction trolley for AAC wall panels used in filling walls and its construction method. Background Technology

[0002] AAC (Autoclaved Aerated Concrete) wall panels, with their superior properties such as lightweight and high strength, thermal insulation, sound insulation, and fire resistance, meet the development needs of modern green, energy-saving, and efficient construction, and have been widely used in infill wall projects for various buildings. However, as building designs move towards higher floors and larger spans, the volume and length of individual AAC wall panels have increased, bringing significant transportation challenges, specifically in the following three aspects: 1. Difficult to transport: Large wall panels are bulky and exceed size limits. Conventional transportation tools and loading and unloading equipment are difficult to adapt to their shape and characteristics. The transportation process is inflexible. Manual handling is not only time-consuming and labor-intensive, but also poses a high safety risk.

[0003] 2. Low transportation efficiency: Due to the large volume of a single wall panel, the loading capacity of a single transport is limited, making it difficult to meet the large-scale and fast-paced material needs of the construction site. The material supply progress lags behind the construction progress, affecting the overall project schedule.

[0004] 3. Wall panels are easily damaged: AAC wall panels are inherently brittle and have weak impact resistance. Existing transportation methods lack specific protection and fixing measures. Bumps and collisions during transportation can easily cause the wall panels to chip or break, seriously damaging the integrity of the wall panels. This not only causes material loss and increases construction costs, but also affects the subsequent installation accuracy due to the deviation in wall panel dimensions.

[0005] Therefore, there is an urgent need for an efficient, safe, and precise method and system for installing AAC wall panels with partial cantilever on exterior walls. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the present invention provides a rapid transport and construction trolley for AAC wall panels infill walls and its assembly method. By assembling the transport and construction trolley, efficient, safe and stable transportation of AAC wall panels infill walls can be achieved.

[0007] The technical solution adopted by the present invention to solve the aforementioned problem is as follows: A rapid transport and construction trolley for AAC wall panels used in wall filling includes at least one lifting unit. The lifting unit includes a portal frame assembled from scaffolding steel pipes. Multiple casters are installed at the bottom of the portal frame, and a winch is fixedly installed at the top of the portal frame. The wire rope end of the winch is provided with hooks for fixing the AAC wall panels.

[0008] As a preferred option, a further technical solution to the above structure is: When there are multiple lifting units, adjacent portal frames are detachably connected via connecting scaffolding tubes and fasteners. The beneficial effects of these features include: flexible combination to accommodate AAC wall panels of different weights and sizes, improving handling stability and load-bearing capacity.

[0009] The number of casters is four, which are installed at the four bottom corners of the portal frame. The beneficial effect of these features is that they ensure the portal structure is stable when standing and allows for flexible movement.

[0010] The portion of the steel wire rope that comes into contact with the AAC wall panel is fitted with a rubber sleeve or a padded sheath. The beneficial effect of this feature is that it prevents the steel wire rope from damaging or abrading the surface of the AAC wall panel, effectively protecting the integrity of the wall panel.

[0011] At least one of the casters is an electric booster wheel with a drive motor. The beneficial effects of these features include: significant savings in manpower and improved transportation efficiency, especially during long-distance transport.

[0012] To address the aforementioned problems, this invention also provides a rapid transport and construction method for AAC wall panels used in infill walls. The method employs the aforementioned rapid transport and construction trolley for AAC wall panels to transport the AAC wall panels. The specific operation process is as follows: S1. Assemble and transport construction trolley: Assemble the portal frame using scaffolding steel pipes and fasteners, install casters at the bottom of the frame and fix a winch at the top to form a lifting unit; according to the load requirements of the AAC wall panels to be transported, connect multiple lifting units into a whole through scaffolding pipes. S2. Wall Panel Lifting and Fixing: Move the transport trolley to the AAC wall panel to be transported, and let the winch wire rope wrap around the AAC wall panel. Lock and fix the AAC wall panel with hooks. Add rubber sleeves or soft pads at the contact points between the wire rope and the AAC wall panel. Start the winch to lift the AAC wall panel. Pause after it is 10cm off the ground and check the stability of the lifting unit. If it is stable, continue lifting to the transport height. Otherwise, increase the number of lifting units and lift again. S3. Transporting wall panels: The trolley is pushed by the casters at the bottom of the portal frame to transfer the lifted AAC wall panels to the installation position. During transportation, the swaying of the steel wire rope is used to buffer the bumps and vibrations, and the AAC wall panels are protected by the portal frame enclosure. S4. Release the wall panel into position: After arriving at the installation location, operate the winch to lower the AAC wall panel onto the pre-laid sleepers, awaiting subsequent construction.

[0013] As a preferred option, a further technical solution to the above construction method is: Before the wall panel hoisting and fixing process, on-site unloading and storage are also included: the AAC wall panels transported to the site are unloaded by forklift to a designated off-site area and stored using sleepers. The beneficial effects of these features include: preventing ground dampness from affecting the quality of the wall panels and ensuring material quality.

[0014] This also includes point-to-point transport of wall panels: based on the detailed secondary structural design drawings, wall panels are classified according to their installation location and transported to the vicinity of the corresponding installation location using transport trolleys. The beneficial effects of these features include: wall panels being placed as needed, reducing secondary handling, and improving construction organization efficiency.

[0015] Compared with the prior art, the present invention, employing the above structure and method, has the following advantages: 1) The combination of casters and winches enhances the mechanization and efficiency of AAC wall panel handling. 2) The flexible connection of the wire rope buffers bumps, and the portal frame structure provides a barrier, significantly reducing wear and tear during AAC wall panel handling. 3) The handling and lifting trolley can be modified from commonly used scaffolding pipes, fasteners, winches, etc., making the materials readily available, easy to replace when damaged, and reusable across multiple projects. 4) It is suitable for the horizontal and vertical transport of AAC wall panels in various building infill walls, offering broad applicability. Attached Figure Description

[0016] Figure 1 This is a structural diagram of the portal unit of the present invention; Figure 2 This is a diagram showing the usage state of the portal structure of the present invention; Figure 3 This is a diagram showing the use of multiple portal units in this invention; Figure 4 This diagram illustrates the use of multiple portal units in this invention to enhance stability.

[0017] In the diagram: 1. Portal frame; 2. Casters; 3. Winch; 4. Wire rope; 5. Fasteners; 6. Soft padding cover; 7. AAC wall panel; 8. Connecting scaffold pipes; 9. Sleepers; 10. Electric booster wheel. Detailed Implementation

[0018] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0019] See Figures 1 to 4The present invention provides a rapid transport and construction trolley for AAC wall panels used in infill walls, comprising at least one lifting trolley unit. This lifting trolley unit is assembled from scaffolding steel pipes commonly used on construction sites into a portal frame 1 using fasteners 9. A caster wheel 2 is installed at each of the four corners of the bottom of the portal frame 1 to ensure the portal structure can stand stably and move flexibly. A winch 3 is fixed to the top of the portal frame 1 using bolts or fasteners, forming a complete lifting unit. The winch 3 is equipped with a steel wire rope 4, the end of which is processed with hooks for wrapping around and securing the AAC wall panel 7. To prevent the steel wire rope from damaging the AAC wall panel, a rubber sleeve or a soft padding sleeve 6 is fitted at the point where the steel wire rope 4 contacts the wall panel.

[0020] When handling large or heavy AAC wall panels, multiple lifting units can be arranged side-by-side. Connecting scaffolding tubes 8 and fasteners 9 are used to laterally connect the upper parts or columns of adjacent portal frames 1, forming a modular transport trolley. This significantly improves the overall load capacity and stability during lifting and transportation. To further reduce the physical exertion of workers, one or two casters on the rear side of the portal frame can be replaced with an electric assist wheel 10 equipped with a drive motor and battery for assisted movement.

[0021] Based on the above-mentioned rapid transportation and construction method for AAC wall panels used in infill walls using a transport and construction trolley, the following steps are implemented: (1) Assemble the transport trolley: According to the above structure, based on the size and weight of the AAC wall panels on site, determine whether to use a single lifting unit or a combination of multiple lifting units to complete the assembly of the transport trolley.

[0022] (2) On-site unloading and storage: After the AAC wall panels arrive at the construction site, they are unloaded by forklift to a designated area outside the construction site. The bottom is padded with sleepers 9 to isolate the ground moisture and prevent the wall panels from developing quality defects due to dampness.

[0023] (3) Wall panel transfer: Based on the secondary structure detailed design drawings, the AAC wall panels that arrive on site are classified according to their intended installation floors and axis positions. The classified wall panels are pre-transferred to the vicinity of each installation location using the assembled transport trolley, thereby reducing the subsequent horizontal transport distance.

[0024] (4) Wall panel hoisting and fixing: The transport trolley is straddled or pushed to the target AAC wall panel, so that the wire rope 4 of the winch 3 wraps around the wall panel once or uses a bottom-mounted method, and is locked in place with hooks. Rubber sleeves 6 are added at the contact points between the wire rope and the corners of the wall panel. The winch 3 is started, and the wall panel is slowly lifted. When the wall panel is about 10cm off the ground, it is immediately stopped to observe the deformation and overall stability of the portal frame. If swaying or deviation occurs, the machine must be stopped and the number of connecting lifting units increased. After confirming stability and reliability, the lifting continues to a transport height of about 30-50cm off the ground.

[0025] (5) Transporting the wall panels: Construction workers push the portal frame and use the casters 2 to transfer the suspended AAC wall panels 7 to the installation point. During transportation, because the wall panels are flexibly suspended by steel wire ropes, road bumps and vibrations are buffered and released by the swinging of the steel wire ropes, preventing hard impacts on the wall panel body; at the same time, the portal frame encloses the wall panels in the internal space of the structure, playing a role in collision protection. When equipped with electric push wheels 10, semi-automatic walking can be achieved by only controlling the direction.

[0026] (6) Release the wall panel into position: After transporting the wall panel to the wall to be installed, lay sleepers 9 or other padding layers below it, operate the winch 3 to release the wire rope smoothly, and slowly lower the AAC wall panel 7 onto the sleepers 9. Release the hook rope to complete this transportation and wait for the subsequent installation process.

[0027] This invention, by modifying common materials used on construction sites into motorized handling equipment, not only solves the problems of difficult transportation and easy damage of large-size AAC wall panels, but also achieves high equipment turnover rate and low application cost, and has good promotional value.

[0028] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A rapid transport and construction trolley for AAC wall panels used in infill walls, characterized in that: It includes at least one lifting unit, which includes a portal frame (1) assembled from scaffolding steel pipes, with multiple casters (2) installed at the bottom of the portal frame (1) and a winch (3) fixedly installed at the top of the portal frame (1); the wire rope (4) of the winch (3) is provided with hooks for fixing the AAC wall panel (7).

2. The rapid transport and construction trolley for AAC wall panels used in infill walls according to claim 1, characterized in that: When there are multiple lifting units, the portal frames (1) of adjacent lifting units are detachably connected by connecting scaffold tubes (8) and fasteners (5).

3. The rapid transport and construction trolley for AAC wall panels used in infill walls according to claim 1, characterized in that: The number of the universal wheels (2) is four, which are respectively installed at the four bottom corners of the portal frame (1).

4. The rapid transport and construction trolley for AAC wall panels used in infill walls according to claim 1, characterized in that: The part of the wire rope (4) that is in contact with the AAC wall panel (7) is fitted with a rubber sleeve or a soft pad sheath (6).

5. The rapid transport and construction trolley for AAC wall panels used in infill walls according to claim 1, characterized in that: At least one of the casters (2) is an electric booster wheel (10) with a drive motor.

6. A method for rapid transport and construction of AAC wall panels for infill walls, characterized in that, The AAC wall panel (7) is transported using the rapid transport construction trolley for infill wall panels as described in any one of claims 1-5. The specific operation process is as follows: S1. Assemble the transport construction trolley: Assemble the portal frame (1) using scaffolding steel pipes and fasteners (5), install casters (2) at the bottom of the frame, and fix the winch (3) at the top to form a lifting unit; according to the load requirements of the AAC wall panel (7) to be transported, connect multiple lifting units into a whole through scaffolding pipes. S2. Wall panel hoisting and fixing: Move the transport trolley to the AAC wall panel (7) to be transported, so that the wire rope (4) of the winch (3) is wrapped around the AAC wall panel (7), and the AAC wall panel (7) is locked and fixed by the hook rope. Rubber sleeves or soft pads (6) are added to the contact parts between the wire rope (4) and the AAC wall panel (7); start the winch (3) to lift the AAC wall panel (7), pause after it is 10cm off the ground, check the stability of the lifting unit. If it is stable, continue to lift to the transport height; otherwise, increase the number of lifting units and lift again. S3. Transporting wall panels: Using the casters (2) at the bottom of the portal frame (1) to push the transport trolley, the lifted AAC wall panel (7) is transferred to the installation position. During the transport, the swaying of the steel wire rope (4) is used to buffer the bumps and vibrations, and the AAC wall panel (7) is protected by the portal frame (1). S4. Release the wall panel into position: After arriving at the installation position, operate the winch (3) to lower the AAC wall panel (7) onto the pre-laid sleepers (9) and wait for subsequent construction.

7. The rapid transport and construction method for AAC wall panels used in infill walls according to claim 6, characterized in that, Before step S2, on-site unloading and storage are also included: the AAC wall panels (7) transported to the construction site are unloaded by forklift to a designated off-site location and stored using sleepers (9).

8. The rapid transport and construction method for AAC wall panels used in infill walls according to claim 6, characterized in that, Before step S2, the wall panel transfer is also included: according to the secondary structure detailed design drawings, the AAC wall panels (7) that have arrived are classified according to the installation location, and the classified wall panels are transferred to the vicinity of the corresponding installation location using the transport trolley.

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