Construction auxiliary system and construction method of modular building

Abstract

According to the construction auxiliary system and the construction method of the modular building, a transportation shock absorption and isolation device can effectively restrain module transportation deformation and guarantee size precision and installation quality, a guiding in-place device can guide a module to rapidly slide into an installation position along a set track, the positioning error is remarkably reduced, the assembly precision is stable and controllable, and the construction efficiency is improved. The hoisting efficiency is improved. The steel bar clamp device can stably clamp the connecting steel bars in narrow module abutted seams and send the connecting steel bars to designated positions, and welding operation is facilitated. The plate cutting device can guide the cutting machine to run along a straight line, and the on-site scribing procedure is omitted. The plate punching device is adsorbed to the surface of a plate through the suction cups to achieve accurate positioning, and the pushing force applied manually and the stability keeping difficulty are reduced. By introducing the special auxiliary device, the functions of transportation damping and deformation monitoring, accurate hoisting guiding, safe and efficient steel bar connection, high-quality sealing plates, labor-saving nailing and the like are achieved. And the construction quality is stable, the efficiency is higher, and the operation safety is higher.

Description

Technical Field

[0001] This invention belongs to the field of modular building construction technology, and in particular relates to a construction auxiliary system and construction method for modular buildings. Background Technology

[0002] Steel-concrete composite modular buildings represent an important development direction for industrialized construction. By completing the main structure, pipeline pre-embedding, and interior decoration of building units in the factory, and then transporting them to the site for hoisting and assembly, the construction cycle can be significantly shortened and the building quality improved.

[0003] The entire construction process of modular buildings mainly includes conventional construction methods such as transportation and fixing, hoisting and positioning, steel reinforcement connection between modules, and final panel installation. The main processes and shortcomings of this existing technology are as follows: 1. Module deformation during transportation During the transportation of steel-concrete composite modular building units, simple fixing methods are typically used to secure the modules to the transport vehicle (such as placing wooden blocks under the modules and binding them to the vehicle with ropes on both sides). The bumps and vibrations generated during vehicle movement cause the modules to bend, twist, or deform. This deformation not only affects the dimensional accuracy of the modules and reduces product quality, but also makes it difficult to properly align the modules with their intended positions during on-site hoisting, increasing the difficulty of adjustment and even affecting the overall assembly quality of the structure.

[0004] 2. Issues regarding the accuracy and efficiency of hoisting and positioning. Current modular hoisting techniques primarily rely on manual pushing, pulling, and visual inspection by construction workers to guide the modules and align them with positioning lines or reference points. This method is highly susceptible to human error, making it difficult to guarantee construction accuracy. Furthermore, it is inefficient for hoisting large or heavy modules, extending the construction period and increasing labor costs.

[0005] 3. Difficulties and safety hazards in connecting steel bars between modules After the modules are hoisted, connecting steel bars need to be installed and welded between adjacent modules. Because the joints between modules are narrow, construction workers must manually insert the steel bars into the gaps and continuously support them during welding. This operation is not only laborious but also prone to accidents such as burns and cuts to the hands due to steel bar slippage or high-temperature welding slag. Furthermore, the welding quality is greatly affected by human error.

[0006] 4. Quality issues in the processing of the rear sealing plate After the reinforcing bars connecting adjacent modules are welded, a backing plate needs to be installed between the modules. The backing plate is usually made of cement fiberboard and needs to be cut to size on site. Traditional cutting tools (such as ordinary cutting machines) cannot guarantee the straightness and flatness of the cut, which affects the installation quality and appearance of the backing plate.

[0007] 5. Issues with the efficiency of rear panel installation. When installing the sealing plate, pilot holes must first be drilled in the steel column, and then holes must be drilled in the cement fiberboard to accommodate self-tapping screws for fixing. Because the cement fiberboard obscures the pilot hole positions, the positioning must be extremely precise; otherwise, the screws will be difficult to align with the pilot holes, resulting in installation difficulties, low efficiency, and requiring workers to expend considerable physical effort to complete the tightening work.

[0008] In summary, existing modular building construction methods have significant shortcomings in transportation protection, hoisting and positioning, rebar connection, and post-installation panel installation. These shortcomings manifest primarily in the following ways: modules are prone to deformation, affecting quality and installation; hoisting accuracy and efficiency are low; rebar connection operations are dangerous and inconvenient; and the processing quality of post-installation panels is unstable and installation is cumbersome. These problems hinder the improvement of quality and efficiency optimization in steel-concrete composite modular building construction. Therefore, it is necessary to provide a construction support system and construction method to address these issues. Summary of the Invention

[0009] The purpose of this invention is to provide a construction assistance system and construction method for modular buildings, so as to eliminate or significantly improve the above-mentioned defects, thereby improving construction efficiency, ensuring construction quality and reducing safety risks.

[0010] In a first aspect, the present invention provides a construction assistance system for modular buildings, comprising: A transport vibration damping and isolation device is used to buffer vibration and impact during transportation. The device includes friction steel plates, connectors, and a rubber vibration isolation base. The friction steel plates are stacked on the top surface of the rubber vibration isolation base to form a plate-shaped buffer unit. The buffer unit is fixed to the bottom of the steel column of the building module via the connectors. The top surface of the friction steel plates contacts the bottom of the steel column of the building module, and a friction structure is provided on the top surface of the friction steel plates. The rubber vibration isolation base contacts the floor plate or transport frame of the transport vehicle. A guiding positioning device is used to guide the precise alignment of the hoisting module. The guiding positioning device includes a fixed base, a position adjustment platform, and a positioning baffle. The fixed base is used to fix itself to the ground or structural concrete slab. The position adjustment platform is located above the fixed base and is movably installed on the fixed base. The position adjustment platform can move horizontally relative to the fixed base and be locked. The positioning baffle is fixed to the side of the position adjustment platform closest to the building module. The positioning baffle has a vertical limiting surface and an inclined guide surface. A rebar clamping device is used to help workers quickly and accurately position rebars. The rebar clamping device includes an operating rod and a sleeve. The operating rod includes a handle, a connecting rod, and end clamping claws. One end of the connecting rod is fixedly connected to the handle, and the other end is fixedly connected to the end clamping claws. The end clamping claws include two elastic grippers. By pushing or pulling the handle, the end clamping claws engage or disengage from the sleeve to achieve an opening and closing action. A sheet metal cutting device for cutting sheets on a construction site; the device includes a support plate, a cutting machine, a guide plate, and an adjustable caliper; the cutting machine is mounted on the support plate, the guide plate is located at one end of the support plate and extends downwards from the lower surface of the support plate, the guide plate is used to embed into a pre-cutting groove in the sheet metal to guide the cutting machine to run in a straight line; the adjustable caliper is located at the other end of the support plate and is used to set the cutting width of the sheet metal; and... A board drilling device is used for drilling and nailing operations on boards. The board drilling device includes a connecting base, a suction cup, a lifting mechanism, a clamping mechanism, and an electric drill. The suction cup is fixed below the connecting base, the lifting mechanism is fixed on the connecting base, and the clamping mechanism is fixed to the lifting output end of the lifting mechanism. The clamping mechanism is used to clamp the electric drill.

[0011] In some implementations, the transport vibration damping and isolation device also includes an inclinometer, which is attached to the area of ​​the building module with the greatest deformation to monitor the deformation data of the building module in real time during transport. The inclinometer has a preset upper limit value for the inclinometer. When the detected deformation value is greater than the preset upper limit value for the inclinometer, the inclinometer informs the user through display or sound.

[0012] In some implementations, the top of the positioning baffle extends away from the building module to form a guide end, and the guide surface is located on the outer surface of the guide end.

[0013] In some implementations, the guiding positioning device further includes an adjustment assembly, which includes a fixing plate and an adjustment screw. The fixing plate is vertically fixed on the fixing base and located on the side away from the positioning baffle. The fixing plate has a mounting hole, and the adjustment screw is threadedly connected to the mounting hole. The end of the adjustment screw is fixedly connected to the position adjustment platform.

[0014] In some implementations, the position adjustment platform is connected to the fixed base via a sliding mechanism, and the sliding direction of the position adjustment platform is perpendicular to the positioning surface of the positioning baffle.

[0015] In some implementations, the two elastic grippers are arranged in a V-shape to form an open end and a closed end, the open end having an arc-shaped concave engagement surface, and the closed end being fixedly connected to the connecting end.

[0016] In some implementations, a reset elastic element is sandwiched between the two elastic grippers.

[0017] In some implementations, the sheet metal cutting device further includes a guide pulley, which is rotatably mounted on the support plate to support the sheet metal during cutting.

[0018] In some implementations, the adjustable caliper is detachably mounted on one end face of the tray by fastening bolts.

[0019] A second aspect of the present invention also provides a construction method for modular buildings, using the construction auxiliary system described in any of the preceding claims, the method comprising the following steps: The vibration damping and isolation device is installed at the bottom of the steel column of the module through the connector, and the positioning guide device is installed on the floor according to the module positioning line; The module is hoisted onto the transport vehicle, so that the rubber vibration isolation base of the vibration damping and isolation device contacts the floor of the transport vehicle or the transport frame. The module is then fixed with straps, and the vibration damping and isolation device absorbs road vibrations during transport. The module is hoisted above the positioning guide device and slowly lowered so that the outer contour of the module contacts the guide surface of the positioning baffle. Guided by the guide surface, it slides into the predetermined installation position, achieving rapid and accurate positioning. By pushing and pulling the handle of the rebar clamping device, the end biting claws open and close, clamping the rebar and sending it into the joint between the two modules for welding. After the steel reinforcement is inspected and accepted, the board is sealed. Cement fiberboard with the same width and height as the joint is used and self-tapping screws are used for fixing. The board is cut on site using a board cutting device to ensure that the joint is straight. Holes are punched in the cement fiberboard using a board punching device, and then the cement fiberboard is fixed to the column by nailing.

[0020] Compared with the prior art, the beneficial effects of this invention are as follows: 1. Effectively suppresses module deformation during transportation, ensuring dimensional accuracy and installation quality. This invention adds a vibration damping and isolation device during transportation. The vibration damping and isolation device can absorb and buffer the bumps and vibrations generated during vehicle operation, significantly reducing the risk of module deformation under stress.

[0021] 2. Improve the speed and accuracy of hoisting and positioning, and reduce the impact of human factors. This invention relates to a module guidance and positioning device installed on a floor, replacing manual pushing and pulling and visual positioning with mechanical guidance. A positioning baffle aligns with the outer contour of the module, guiding the module to quickly slide into the installation position along a predetermined trajectory. The application of this device significantly shortens module positioning time, substantially reduces positioning errors, ensures stable and controllable assembly accuracy, and greatly improves hoisting efficiency.

[0022] 3. Solve the operational challenges of rebar connection, and improve safety and welding quality. This invention designs a rebar clamping device that can stably clamp and deliver connecting rebars to designated positions within narrow modular joints (approximately 40mm wide), facilitating welding operations. This device eliminates the inconvenience and danger of reaching into the joint by hand, avoids hand injuries from welding slag, ensures accurate rebar positioning, improves welding quality consistency, and significantly enhances construction safety.

[0023] 4. Ensure the quality of plate cutting and improve processing efficiency. This invention is equipped with a board cutting device that guides the cutting machine to run in a straight line by embedding a guide plate into a pre-cutting groove, and uses adjustable calipers to quickly set the cutting width, eliminating the need for on-site marking. The direct effect of this device is high cut straightness, good dimensional accuracy, faster cutting speed, and effective guarantee of the appearance and installation quality of cement fiberboard sealing panels.

[0024] 5. Reduces the labor intensity of nail driving and improves installation efficiency and accuracy. This invention develops a board drilling device that utilizes a suction cup to precisely position itself on the surface of a cement fiberboard, while a lifting mechanism drives an electric drill to complete the drilling and nailing operations. This device directly reduces the manual pushing force and the difficulty of maintaining stability, avoids rework caused by hole position deviations, significantly improves board installation efficiency, and simultaneously reduces worker labor intensity and occupational health risks.

[0025] In summary, this invention, by introducing the aforementioned indispensable specialized auxiliary devices throughout the entire modular building construction process, achieves functions such as shock absorption and deformation monitoring during transportation, precise hoisting guidance, safe and efficient connection of reinforcing bars, high-quality cutting of sealing plates, and labor-saving nailing. These newly added devices work synergistically, directly resulting in more stable construction quality, higher construction efficiency, and enhanced operational safety, overcoming many shortcomings of existing technologies and possessing significant value for widespread application. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the transportation vibration damping and isolation device provided in an embodiment of the present invention; Figure 2 It is Figure 1 The diagram shows the transport vibration damping and isolation device installed between the building module and the transport frame. Figure 3This is a schematic diagram illustrating the application of an inclinometer to monitor the degree of deformation of building modules; Figure 4 This is a schematic diagram of the structure of the guiding and positioning device provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the guiding and positioning device provided in this embodiment of the invention before the fixing bolts are installed; Figure 6 This is a structural schematic diagram of the rebar clamping device provided in an embodiment of the present invention; Figure 7 This is an exploded structural diagram of the rebar clamping device provided in an embodiment of the present invention; Figure 8 This is a top view of the plate cutting device provided in an embodiment of the present invention; Figure 9 This is a side view of the sheet metal cutting device provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the main structure of the plate drilling device provided in an embodiment of the present invention; Figure 11 This is a side view of the sheet metal drilling device provided in an embodiment of the present invention; Figure 12 This is a flowchart of the construction auxiliary system for modular building construction according to an embodiment of the present invention. Detailed Implementation

[0027] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments: This embodiment provides a construction assistance system for modular buildings, including a transport vibration damping device, a guiding and positioning device, a rebar clamping device, a plate cutting device, and a plate drilling device.

[0029] Vibration damping and isolation devices are used to buffer vibrations and impacts during transportation. For example... Figure 1 As shown, the transport vibration damping and isolation device includes a friction steel plate 11, a rubber vibration isolation base 12, and a connector 13. Please refer to the diagram. Figure 2Friction steel plates 11 are stacked on the top surface of rubber vibration isolation base 12 to form a plate-shaped buffer unit 10. The buffer unit 10 is fixed to the bottom of the steel column of building module 100 by connector 13. The top surface of friction steel plate 11 is in contact with the bottom of steel column of building module 100, and friction structure is provided on the top surface of friction steel plate 11. Rubber vibration isolation base 12 is in contact with the bottom plate of transport vehicle or transport frame 200.

[0030] Specifically, the friction steel plate 11 is made of wear-resistant steel plate, and the friction structure is an anti-slip texture or rough structure set on the top surface of the friction steel plate 11. The thickness of the friction steel plate 11 is 4~6mm, preferably 4mm, and the surface roughness Ra≤3.2μm, so as to ensure that the coefficient of friction μ≥0.35 between it and the upper connecting structure and prevent relative slippage.

[0031] The rubber vibration isolation base 12 is made of high-damping natural rubber or neoprene rubber, with carbon black reinforcing agent added to the rubber material to improve wear resistance and aging resistance. The thickness of the rubber vibration isolation base is 20-30mm, preferably 20mm. Furthermore, in other embodiments, the bottom surface of the rubber vibration isolation base 12 is provided with anti-slip textures, the texture depth is 2mm, and it is distributed in a grid pattern to increase the frictional resistance between it and the transport vehicle floor, preventing horizontal displacement of the device during transportation.

[0032] The connector 13 is a fixed rivet. The buffer unit 10 has evenly arranged connecting holes along its circumference. The fixed rivet passes through the connecting holes and is fixedly connected to the bottom of the steel column of the building module 100.

[0033] A vibration damping device is installed at the bottom of the steel column of each building module, and the building module 100 is pressed downwards by straps to ensure that the vibration damping device is in close contact with the floor of the transport vehicle. When the vehicle is in motion, the impact and vibration from the road surface are first transmitted to the rubber vibration isolation base 12. The elastic deformation of the rubber material absorbs and dissipates the vibration energy. The attenuated load is then evenly transmitted to the steel column of the building module 100 through the friction steel plate 11 and the fixing rivets, thereby significantly reducing the risk of bending or torsional deformation of the module due to bumps.

[0034] In order to promptly detect bending or torsional deformation problems of the building module 100 during transportation, in some embodiments, please refer to... Figure 3 The transport vibration damping device also includes an inclinometer 14. It should be noted that the inclinometer 14 is a separate structure from the buffer unit 10. The inclinometer 14 is fixed in the area of ​​the building module 100 with the greatest deformation and is used to monitor the deformation data of the building module 100 in real time during the transport process. The inclinometer 14 has a preset upper limit value for the inclinometer angle. When the detected deformation value is greater than the preset upper limit value for the inclinometer angle, the inclinometer 14 will notify the user through display or sound, so that the user can detect the module deformation exceeding the limit in time and take corrective measures in time.

[0035] The positioning guide device is used to guide the precise alignment of the hoisted module. Please refer to... Figure 4 and Figure 5 The guiding positioning device includes a fixed base 21, a position adjustment platform 22, and a positioning baffle 23. The fixed base 21 is used to fix it to the ground or structural concrete slab. The position adjustment platform 22 is located above the fixed base 21 and is installed on the fixed base 21 in a movable manner. The position adjustment platform 22 can move horizontally relative to the fixed base 21 and be locked. The positioning baffle 23 is fixed to the side of the position adjustment platform 22 near the building module. The positioning baffle 23 has a vertical limiting surface 231 and an inclined guide surface 232.

[0036] The fixing base 21 is used to fix it to the ground or structural concrete slab. Specifically, the fixing base 21 has fixing holes 211, and the fixing base 21 is fixedly connected to the ground or structural concrete slab by inserting expansion bolts into the fixing holes 211. Preferably, the fixing base 21 is a flat steel plate with a certain structural strength.

[0037] The position adjustment platform 22 is located above the fixed base 21 and is movably mounted on the fixed base 21. The position adjustment platform 22 can move horizontally relative to the fixed base 22 and be locked. The positioning baffle 23 is fixed to the side of the position adjustment platform 22 near the building module. The positioning baffle 23 has a vertical limiting surface 231 and a guide surface 232 that is inclined outward.

[0038] In this embodiment, the top of the positioning baffle 23 extends away from the building module to form a guide end, and the guide surface 232 is located on the outer side of the guide end.

[0039] To adjust the relative distance between the positioning baffles 23 of the two guiding positioning devices, thus adapting to building modules of different sizes, the guiding positioning device in this embodiment further includes an adjustment assembly. The adjustment assembly includes a fixing plate 24 and an adjustment screw 25. The fixing plate 24 is vertically fixed to the fixing base 21 and located on the side away from the positioning baffle 23. The fixing plate 24 has a mounting hole, and the adjustment screw 25 is threadedly connected to the mounting hole. The end of the adjustment screw 25 is fixedly connected to the position adjustment platform 22. By rotating the adjustment screw 25, the adjustment screw 25 can move linearly relative to the fixing plate 24 towards or away from the building module, thereby adjusting the position of the positioning baffle 23. After stopping the rotation of the adjustment screw 25, the threaded engagement between the adjustment screw 25 and the mounting hole locks the position of the positioning baffle 23.

[0040] In order to make the position adjustment platform 22 move more smoothly, in this embodiment, the position adjustment platform 22 is connected to the fixed base 21 through a sliding mechanism. The sliding direction of the position adjustment platform 22 is perpendicular to the positioning surface of the positioning baffle 23. The position of the positioning baffle 23 can be adjusted by pushing and pulling the position adjustment platform 22.

[0041] The aforementioned sliding mechanism can be implemented through various combinations of structures. In this embodiment, the sliding mechanism includes a support platform 26, a limiting post 27, and a fixing bolt 28. The support platform 26 is located on the top surface of the fixed base 21, the limiting post 27 is vertically fixed on the support platform 26, and the position adjustment platform 22 has an elongated hole 221. The limiting post 27 passes through the elongated hole 221, and the fixing bolt 28 is threadedly connected to the limiting post 27. The head width of the fixing bolt 28 is greater than the hole width of the elongated hole 221. Through the above design, the position adjustment platform 22 can slide relative to the support platform 26 within a certain range under the constraint of the limiting post 27.

[0042] For example, in another embodiment, the sliding mechanism includes a slide groove disposed at the bottom of the position adjustment platform 22 and a slide rail disposed at the top of the fixed base 21. The slide rail is embedded in the slide groove, and the length direction of the slide rail is perpendicular to the positioning surface of the positioning baffle 23. In yet another embodiment, the sliding mechanism includes a slide rail disposed at the bottom 22 of the position adjustment platform and a slide groove disposed at the top of the fixed base 21. The slide rail is embedded in the slide groove, and the length direction of the slide rail is perpendicular to the positioning surface of the positioning baffle 23.

[0043] Furthermore, the guiding and positioning device in this embodiment also includes a connecting plate 2a and an L-shaped connector 2b, and two positioning baffles 23 are provided, arranged at right angles. The connecting plate 2a is vertically fixed to the position adjustment platform 22, and one positioning baffle 23 is fixed to the side of the connecting plate 2a facing away from the position adjustment platform 22; one end of the L-shaped connector 2b is fixedly connected to the connecting plate 2a, and the other end is fixedly connected to the other positioning baffle 23. Through the above structural design, the guiding and positioning device can contact both sides of the module simultaneously, thereby enabling the module to perform alignment and positioning operations in two directions simultaneously.

[0044] Before hoisting the building modules, a guiding positioning device is installed at each of the four corners of the building module according to the positioning lines on the floor. The fixed base 21 is then fixedly connected to the concrete slab surface with expansion bolts, thus completing the installation of the device. During the hoisting and descent of the building module, the guide surface of the guiding positioning device can guide the building module to slide into the installation position along the predetermined trajectory, which significantly shortens the module positioning time, reduces the positioning error, stabilizes and controls the assembly accuracy, and greatly improves the hoisting efficiency.

[0045] Rebar clamping devices are used to help workers quickly and accurately position rebars. Please refer to... Figure 6 and Figure 7 The rebar clamping device includes an operating rod 31 and a sleeve 32. The operating rod 31 includes a hand grip 311, a connecting rod 312, and an end gripping claw 313. One end of the connecting rod 312 is fixedly connected to the hand grip 311, and the other end is fixedly connected to the end gripping claw 313. The end gripping claw 313 includes two elastic grippers. By pushing and pulling the hand grip 311, the end gripping claw 313 can be inserted into or disengaged from the sleeve 32 to achieve the opening and closing action.

[0046] Specifically, the two elastic grippers 313 are arranged in a V-shape to form an open end and a closed end. The open end has an arc-shaped concave interlocking surface, and the closed end is fixedly connected to the connecting end. The shape of the two interlocking surfaces after closing matches the cross-sectional shape of the reinforcing bar.

[0047] Furthermore, the interlocking surface is covered with a rubber anti-slip pad 314. When the rubber anti-slip pad 314 comes into contact with the reinforcing bar, it can be squeezed and deformed, thereby increasing the contact area between the interlocking surface and the reinforcing bar, increasing the friction, and achieving an anti-slip effect.

[0048] Furthermore, a reset elastic element 33 is sandwiched between the two elastic grippers. Although the two elastic grippers in this embodiment also have a certain reset capability, considering that the elastic performance of the elastic grippers may decrease after long-term use, a reset elastic element 33 is added in this embodiment. When the elastic grippers slide out of the sleeve, the two elastic grippers can quickly open under the elastic force of the reset elastic element 33.

[0049] Furthermore, in this embodiment, the cross-section of the inner hole of the sleeve 32 is circular, and the cross-section of the connecting rod 312 is also circular. Through the size design, a certain gap can be reserved between the inner wall of the sleeve 32 and the outer periphery of the connecting rod 312. Thus, by rotating the operating rod 31, the end biting claw 313 can rotate relative to the sleeve 32, thereby realizing the function of adjusting the position of the reinforcing bar.

[0050] The sheet metal cutting device is used for cutting sheets on construction sites. Please refer to... Figure 8 and Figure 9 The sheet metal cutting device includes a support plate 41, a cutting machine 42, a guide plate 43, and an adjustable caliper. The cutting machine 42 is mounted on the support plate 41, and the guide plate 43 is located at one end of the support plate 41. The guide plate 43 is used to embed into the pre-cut groove of the sheet metal and guide the cutting machine 42 to run in a straight line. The adjustable caliper is located at the other end of the support plate and is used to set the cutting width of the sheet metal.

[0051] The cutting machine 42 is used to cut plates. A clearance opening 411 is provided in the middle area of ​​the support plate 41. The position of the clearance opening 411 corresponds to the position of the cutting blade of the cutting machine 42, allowing the cutting blade to extend downwards into the clearance opening (e.g., ...). Figure 8 (As shown).

[0052] The adjustable caliper has two sections that can slide relative to each other. Each section extends upwards with a limiting part protruding from the top surface of the support plate 41. The limiting parts on both sides are used to restrict the two sides of the plate. The two sections of the adjustable caliper are fixed to one end face of the support plate 1 by a fastening bolt 44, thereby realizing a detachable connection between the adjustable caliper and the support plate 41. The fastening bolt 44 is a hand-tightening bolt, which can be manually tightened or removed.

[0053] Furthermore, in this embodiment, the sheet metal cutting device also includes a guide pulley 45, which is rotatably mounted on the support plate 41 to support the sheet metal during cutting. This allows the sheet metal to roll relative to the support plate 41 during the cutting process, thereby reducing friction and ensuring smooth sliding of the guide pulley 45 on the sheet metal surface, thus lowering the operator's workload and reducing operational difficulty. In this embodiment, to ensure smooth sliding of the sheet metal, two rows of spaced-apart pulley mounting seats 412 are provided on the top surface of the support plate 41, and the guide pulley 45 is hinged to the pulley mounting seats 412. For example, as shown... Figure 8 As shown, there are four guide pulleys in two rows and two columns.

[0054] The board drilling device is used for drilling and nailing operations on boards. The board drilling device includes a connecting base 51, a suction cup 52, a lifting mechanism 53, a clamping mechanism 54, and an electric drill. The suction cup 52 is fixed below the connecting base 51, the lifting mechanism 53 is fixed on the connecting base 51, and the clamping mechanism 54 is fixed to the lifting output end of the lifting mechanism 53. The clamping mechanism 54 is used to clamp the electric drill.

[0055] The tooling is positioned and fixed by adhering to the surface of the cement fiberboard with suction cup 52. The connecting seat 51 connects suction cup 52 and lifting mechanism 53 into a whole. Lifting mechanism 53 drives clamping mechanism 54 and electric drill to move up and down to complete the drilling action. Clamping mechanism 54 realizes the quick clamping and unclamping of electric drill.

[0056] Please refer to Figure 12 This embodiment also provides a construction method for modular buildings using the above-mentioned construction assistance system, including the following steps: The vibration damping and isolation device is installed at the bottom of the steel column of the module through connector 13, and the positioning guide device is installed on the floor according to the module positioning line. The module is hoisted onto the transport vehicle, so that the rubber vibration isolation base 12 of the vibration damping and isolation device contacts the bottom plate of the transport vehicle or the transport frame 200. The module is fixed by straps, and the vibration damping and isolation device absorbs road vibration during transportation. The module is hoisted above the positioning guide device and slowly lowered so that the outer contour of the module contacts the guide surface 232 of the positioning baffle 23. Guided by the guide surface 232, the module slides into the predetermined installation position, achieving rapid and accurate positioning. By pushing and pulling the handle 311 of the rebar clamping device, the end biting claw 313 is opened and closed, clamping the rebar and sending the rebar into the joint between the two modules for welding; After the steel reinforcement is inspected and accepted, the board is sealed. Cement fiberboard with the same width and height as the joint is used and self-tapping screws are used for fixing. The board is cut on site using a board cutting device to ensure that the joint is straight. Holes are punched in the cement fiberboard using a board punching device, and then the cement fiberboard is fixed to the column by nailing.

[0057] Compared with the prior art, this embodiment has at least the following technical effects: 1. Effectively suppresses module deformation during transportation, ensuring dimensional accuracy and installation quality. This embodiment incorporates a vibration damping and isolation device during transportation. This device absorbs and buffers bumps and vibrations generated during vehicle travel, significantly reducing the risk of module deformation under stress. An inclinometer monitors the module's attitude changes in real time throughout transportation, hoisting, and installation; adjustments are made promptly if deformation exceeds limits. The combined use of these new components directly prevents bending or twisting of the module due to vibration, ensuring the module's geometric accuracy and product quality from the outset, and reducing on-site installation adjustments.

[0058] 2. Improve the speed and accuracy of hoisting and positioning, and reduce the impact of human factors. This embodiment uses a module guidance and positioning device installed on the floor, replacing manual pushing and pulling and visual positioning with mechanical guidance. The positioning baffle 23 is aligned with the outer contour of the module, guiding the module to quickly slide into the installation position along a predetermined trajectory. The application of this device significantly shortens the module positioning time, significantly reduces positioning errors, ensures stable and controllable assembly accuracy, and greatly improves hoisting efficiency.

[0059] 3. Solve the operational challenges of rebar connection, and improve safety and welding quality. This embodiment features a rebar clamping device that can stably clamp and guide connecting rebars into designated positions within narrow modular joints (approximately 40mm wide), facilitating welding operations. This device eliminates the inconvenience and danger of manually reaching into the joint, avoids hand injuries from welding slag, ensures accurate rebar positioning, improves welding quality consistency, and significantly enhances construction safety.

[0060] 4. Ensure the quality of plate cutting and improve processing efficiency. This embodiment is equipped with a board cutting device. The cutting machine is guided to run in a straight line by embedding a guide plate 43 into a pre-cutting groove, and the cutting width is quickly set using adjustable calipers, eliminating the need for on-site marking. The direct effect of this device is high cut straightness, good dimensional accuracy, faster cutting speed, and effective guarantee of the appearance and installation quality of the cement fiberboard sealing board.

[0061] 5. Reduces the labor intensity of nail driving and improves installation efficiency and accuracy. This embodiment develops a board drilling device that uses a suction cup to adhere to the surface of a cement fiberboard for precise positioning. A lifting mechanism 53 drives an electric drill 55 to complete the drilling and nailing operations. This device directly reduces the manual pushing force and the difficulty of maintaining stability, avoids rework caused by hole position deviations, significantly improves board installation efficiency, and simultaneously reduces worker labor intensity and occupational health risks.

[0062] In summary, this embodiment, by introducing the aforementioned indispensable specialized auxiliary devices throughout the entire modular building construction process, achieves functions such as transportation shock absorption and deformation monitoring, precise hoisting guidance, safe and efficient rebar connection, high-quality cutting of sealing plates, and labor-saving nailing. These newly added devices work synergistically, directly resulting in more stable construction quality, higher construction efficiency, and enhanced operational safety, overcoming many shortcomings of existing technologies and possessing significant value for widespread application.

[0063] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention; the terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction support system for modular buildings, characterized in that, include: A transport vibration damping and isolation device is used to buffer vibration and impact during transportation. The device includes friction steel plates, connectors, and a rubber vibration isolation base. The friction steel plates are stacked on the top surface of the rubber vibration isolation base to form a plate-shaped buffer unit. The buffer unit is fixed to the bottom of the steel column of the building module via the connectors. The top surface of the friction steel plates contacts the bottom of the steel column of the building module, and a friction structure is provided on the top surface of the friction steel plates. The rubber vibration isolation base contacts the floor plate or transport frame of the transport vehicle. A guiding positioning device is used to guide the precise alignment of the hoisting module. The guiding positioning device includes a fixed base, a position adjustment platform, and a positioning baffle. The fixed base is used to fix itself to the ground or structural concrete slab. The position adjustment platform is located above the fixed base and is movably installed on the fixed base. The position adjustment platform can move horizontally relative to the fixed base and be locked. The positioning baffle is fixed to the side of the position adjustment platform closest to the building module. The positioning baffle has a vertical limiting surface and an inclined guide surface. A rebar clamping device is used to help workers quickly and accurately position rebars. The rebar clamping device includes an operating rod and a sleeve. The operating rod includes a handle, a connecting rod, and end clamping claws. One end of the connecting rod is fixedly connected to the handle, and the other end is fixedly connected to the end clamping claws. The end clamping claws include two elastic grippers. By pushing or pulling the handle, the end clamping claws engage or disengage from the sleeve to achieve an opening and closing action. A sheet metal cutting device for cutting sheets on a construction site; the device includes a support plate, a cutting machine, a guide plate, and an adjustable caliper; the cutting machine is mounted on the support plate, the guide plate is located at one end of the support plate and extends downwards from the lower surface of the support plate, the guide plate is used to embed into a pre-cutting groove in the sheet metal to guide the cutting machine to run in a straight line; the adjustable caliper is located at the other end of the support plate and is used to set the cutting width of the sheet metal; and... A board drilling device is used for drilling and nailing operations on boards. The board drilling device includes a connecting base, a suction cup, a lifting mechanism, a clamping mechanism, and an electric drill. The suction cup is fixed below the connecting base, the lifting mechanism is fixed on the connecting base, and the clamping mechanism is fixed to the lifting output end of the lifting mechanism. The clamping mechanism is used to clamp the electric drill.

2. The construction auxiliary system according to claim 1, characterized in that, The transport vibration damping and isolation device also includes an inclinometer, which is attached to the area of ​​the building module with the greatest deformation to monitor the deformation data of the building module in real time during transport. The inclinometer has a preset upper limit value for the inclinometer. When the detected deformation value is greater than the preset upper limit value for the inclinometer, the inclinometer will notify the user through display or sound.

3. The construction auxiliary system according to claim 1, characterized in that, The top of the positioning baffle extends away from the building module to form a guide end, and the guide surface is located on the outer side of the guide end.

4. The construction auxiliary system according to claim 1, characterized in that, The guiding positioning device also includes an adjustment component, which includes a fixing plate and an adjustment screw. The fixing plate is vertically fixed on the fixing base and located on the side away from the positioning baffle. The fixing plate has a mounting hole, and the adjustment screw is threadedly connected to the mounting hole. The end of the adjustment screw is fixedly connected to the position adjustment platform.

5. The construction auxiliary system according to claim 4, characterized in that, The position adjustment platform is connected to the fixed base via a sliding mechanism, and the sliding direction of the position adjustment platform is perpendicular to the positioning surface of the positioning baffle.

6. The construction auxiliary system according to claim 1, characterized in that, The two elastic grippers are arranged in a V-shape to form an open end and a closed end. The open end has an arc-shaped concave engagement surface, and the closed end is fixedly connected to the connecting end.

7. The construction auxiliary system according to claim 6, characterized in that, A reset elastic element is sandwiched between the two elastic grippers.

8. The construction auxiliary system according to claim 1, characterized in that, The plate cutting device also includes a guide pulley, which is rotatably mounted on the support plate to support the plate being cut.

9. The construction auxiliary system according to claim 8, characterized in that, The adjustable caliper is detachably mounted on one end face of the tray by fastening bolts.

10. A construction method for a modular building, using the construction auxiliary system according to any one of claims 1 to 9, characterized in that, The method includes the following steps: The vibration damping and isolation device is installed at the bottom of the steel column of the module through the connector, and the positioning guide device is installed on the floor according to the module positioning line; The module is hoisted onto the transport vehicle, so that the rubber vibration isolation base of the vibration damping and isolation device contacts the floor of the transport vehicle or the transport frame. The module is then fixed with straps, and the vibration damping and isolation device absorbs road vibrations during transport. The module is hoisted above the positioning guide device and slowly lowered so that the outer contour of the module contacts the guide surface of the positioning baffle. Guided by the guide surface, it slides into the predetermined installation position, achieving rapid and accurate positioning. By pushing and pulling the handle of the rebar clamping device, the end biting claws open and close, clamping the rebar and sending it into the joint between the two modules for welding. After the steel reinforcement is inspected and accepted, the board is sealed. Cement fiberboard with the same width and height as the joint is used and self-tapping screws are used for fixing. The board is cut on site using a board cutting device to ensure that the joint is straight. Holes are punched in the cement fiberboard using a board punching device, and then the cement fiberboard is fixed to the column by nailing.

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