A large-span steel structure roof color steel plate rapid assembly type installation equipment

CN122899322APending Publication Date: 2026-10-13JIAOZUO QIFAN COLOR PLATE STEEL STRUCTURE CO LTD
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Patent Information

Application Number
CN202611272658.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-08-21
Publication Date
2026-10-13

AI Technical Summary

Technical Problem

[0002]在大跨度钢结构屋面施工过程中,超宽大幅面彩钢板因板体厚度薄、自身刚性弱、悬空跨度大,高空吊装铺装阶段极易出现两侧下垂、板面弯折及边缘翘曲变形等问题,直接造成板材对接缝隙不均、锁边咬合不严,大幅降低屋面铺装精度与整体防水性能,后期极易出现渗漏隐患

Benefits of technology

一种大跨度钢结构屋面彩钢板快速装配式安装设备,通过驱动电机稳定带动传动齿轮旋转,利用齿轮啮合原理驱动传动齿条实现前后往复位移,进而带动顶部固定的T型滑动板同步运动。依托椭圆固定架顶部设置的镂空端,可对T型滑动板的滑动轨迹进行全程限位约束,彻底杜绝滑动过程中出现偏移、卡顿、脱轨等问题;同时T型滑动板底部两侧沿第一滑动杆外表面同步滑动,进一步规整移动轨迹。

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Abstract

The present application relates to the technical field of steel structure roof assembly equipment. Disclosed is a large-span steel structure roof color steel plate rapid assembly type mounting equipment, which comprises a main frame, a negative pressure adsorption positioning mechanism and a deformation prevention grading expansion support mechanism. The main frame serves as an overall load-bearing matrix. The adsorption positioning mechanism is arranged on the top of the main frame to realize overall fixation and positioning of the color steel plate. The grading expansion support mechanism is assembled on both sides of the main frame to realize deformation prevention support operation of the plate. The support mechanism is equipped with a sliding drive assembly and a double-side transverse expansion support assembly. Through gear and rack meshing transmission, multiple groups of sliding rods are limited and guided to realize synchronous and stable expansion and contraction of the double-side support structure. The support structure can be self-adapted to different ultra-wide specification color steel plates, can be targeted to reinforce the two-side suspended weak areas of the plate, and can effectively improve the problems of easy deformation, bending and warping of the large plate during hoisting. Meanwhile, the double-side support structure is arranged in a high-low staggered manner, can be stacked and nested when being folded, and can greatly reduce the occupied space of the equipment.
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Description

Technical Field

[0001] This invention relates to the field of steel structure roof assembly equipment technology, specifically a rapid assembly and installation equipment for large-span steel structure roof color steel panels. Background Technology

[0002] During the construction of large-span steel structure roofs, ultra-wide and large-format color steel panels are prone to problems such as sagging on both sides, bending of the panel surface, and warping and deformation of the edges during the high-altitude hoisting and installation stage due to their thin panel thickness, weak rigidity, and large suspended span. This directly causes uneven gaps between the panels and poor edge locking, significantly reducing the accuracy of the roof installation and the overall waterproof performance, and making it very easy for leakage hazards to occur later.

[0003] Currently, traditional color steel plate installation equipment has a simple structure and mostly adopts a fixed support structure. The support span cannot adapt to the specifications of ultra-wide plates, and can only achieve simple lifting operations. It cannot effectively reinforce and support the suspended areas on both sides of the plate.

[0004] Meanwhile, conventional support structures suffer from poor opening and closing linkage, and are prone to misalignment, jamming, and other issues during transmission. This results in low support deployment accuracy and insufficient stability, making it difficult to meet the high-precision anti-deformation construction requirements of large-size color steel panels. Furthermore, existing support equipment has a rudimentary storage method, unable to achieve staggered overlapping and folding, occupies a large space when idle, and is cumbersome for high-altitude transport, erection, and storage operations. This severely restricts the overall efficiency and construction quality of prefabricated construction of large-span roof color steel panels. Therefore, there is an urgent need to develop a rapid prefabricated installation device that is adaptable to ultra-wide color steel panels, has precise transmission, and can be compactly stored. Summary of the Invention

[0005] The purpose of this invention is to provide a rapid assembly and installation device for large-span steel structure roof color steel panels, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rapid assembly and installation equipment for large-span steel structure roof color steel panels, including a main equipment frame, a negative pressure adsorption positioning plate, and an anti-deformation graded expansion support mechanism, wherein the main equipment frame is the load-bearing base of the whole machine and the whole adopts a rigid frame structure; Several of the aforementioned negative pressure adsorption positioning discs are fixedly installed on the top of the main frame of the equipment for overall adsorption, fixation, and positioning of the color steel plate; The anti-deformation graded expansion support mechanism is fixedly assembled on the left and right sides of the main frame of the equipment, and works in conjunction with the negative pressure adsorption positioning plate to achieve anti-deformation support throughout the hoisting and laying of large-size color steel plates. The anti-deformation graded expansion support mechanism includes a sliding drive mechanism and a double-sided lateral expansion support mechanism. The sliding drive mechanism can slide along the front and rear direction of the main frame of the equipment, thereby driving the two-sided lateral expansion support mechanism to simultaneously complete the contraction or expansion displacement movement. The dual-sided lateral expansion support mechanism is used to expand laterally to the left and right sides of the equipment, adapting to different ultra-wide color steel plates, accurately covering the weak areas of the large plate on both sides, and specifically solving the core pain points of sagging on both sides, bending at the edges, and warping of the plate surface when hoisting large-size color steel plates.

[0007] As a preferred embodiment of the present invention, the sliding drive mechanism includes an elliptical fixed frame, the rear end of which is fixedly connected to one side of the main frame of the equipment, a drive motor is fixedly connected to one bottom end of the elliptical fixed frame, and a transmission gear is fixedly connected to the output shaft of the drive motor.

[0008] As a preferred embodiment of the present invention, a transmission rack is meshed with the outer surface of the transmission gear, a T-shaped sliding plate is fixedly connected to the top of the transmission rack, and a hollow end is provided on the top of the elliptical fixing frame. The inner surface of the hollow end is slidably connected to the bottom protrusion of the T-shaped sliding plate.

[0009] As a preferred embodiment of the present invention, the protruding portions at one end of the bottom of the T-shaped sliding plate are slidably connected to the first sliding rods, the bottoms of the two first sliding rods are respectively fixedly connected to the top two ends of the elliptical fixing frame, and the other end of the bottom of the T-shaped sliding plate is slidably hinged to the double-sided lateral unfolding support mechanism.

[0010] As a preferred embodiment of the present invention, the double-sided lateral unfolding support mechanism includes two transmission connecting rods. One end of each of the two transmission connecting rods is movably hinged to the other end of the bottom of the T-shaped sliding plate. The other end of each of the two transmission connecting rods is movably hinged to an L-shaped support frame. The tops of the two L-shaped support frames are respectively fixedly connected to multiple negative pressure adsorption positioning discs.

[0011] As a preferred embodiment of the present invention, each of the two L-shaped support frame bottom bodies has a movable plate hinged to its opposite ends, and a second sliding rod is slidably connected to the protruding part of the other end of each movable plate. The second sliding rod is arranged vertically.

[0012] As a preferred embodiment of the present invention, a third sliding rod is slidably connected to the top of the outer protrusion of each of the second sliding rods, and the tops of the two third sliding rods are laterally fixedly connected to the bottom of the elliptical fixing frame.

[0013] As a preferred embodiment of the present invention, both L-shaped support frames are arranged in an L-shaped structure, and the installation heights of the two L-shaped support frames are staggered, so that the two sets of L-shaped support frames can be staggered and nested together during the closing and sliding process, so as to realize the support frame moving closer to the middle and merging.

[0014] Compared with the prior art, the beneficial effects of the present invention are: A rapid assembly and installation device for large-span steel structure roof color steel panels uses a drive motor to stably rotate a transmission gear. This gear meshing principle drives a transmission rack to move back and forth, thereby synchronously moving a top-fixed T-shaped sliding plate. The hollowed-out end at the top of the elliptical fixing frame provides full-range constraint on the sliding trajectory of the T-shaped sliding plate, completely eliminating problems such as offset, jamming, and derailment during sliding. Simultaneously, the bottom two sides of the T-shaped sliding plate slide synchronously along the outer surface of the first sliding rod, further regulating the movement trajectory.

[0015] A rapid assembly and installation device for large-span steel structure roof color steel panels, which drives the transmission connecting rod to pull the L-shaped support frame as the T-shaped sliding plate slides forward, so that the movable plates connected to opposite sides at the bottom of the L-shaped support frame slide to both sides along the outer surface of the second sliding rod, thus realizing the smooth unfolding of the double-sided support structure.

[0016] A rapid assembly and installation device for large-span steel structure roof color steel panels, when the T-shaped sliding plate slides back to its initial position, the transmission connecting rod pulls the L-shaped support frame in the opposite direction, causing the movable plate to slide along the second sliding rod to the bottom. At the same time, the second sliding rod will also slide synchronously along the outer surface of the third sliding rod towards the center of the device, completing the inward retraction action of the entire support structure.

[0017] A rapid assembly and installation device for large-span steel structure roof color steel panels uses a unique installation structure with two L-shaped support frames that are staggered in height. During the retraction and folding process, the two sets of L-shaped support frames can be staggered and nested together by utilizing the height difference. Combined with the integrated design of the top negative pressure adsorption positioning plate and the bottom support mechanism, the overall structure of the equipment is compact, easy to disassemble, assemble and transport, and perfectly adapted to the high-altitude and narrow working space of large-span steel structure roofs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the front extension structure of the main frame of the device according to the present invention; Figure 2 This is a schematic diagram of the front retractable structure of the main frame of the device according to the present invention; Figure 3 This is a schematic diagram of the overall anti-deformation graded expansion support mechanism of the present invention; Figure 4 This is a schematic diagram of the sliding drive mechanism of the present invention; Figure 5 This is a schematic diagram showing the connection relationship between the T-shaped sliding plate and the hollow end of the present invention; Figure 6 This is a schematic diagram of the double-sided lateral unfolding support mechanism of the present invention; Figure 7This is a schematic diagram showing the connection relationship between the two ends of the transmission connecting rod of the present invention; Figure 8 This is a schematic diagram showing the upper and lower connection relationship of the elliptical fixing frame of the present invention.

[0019] In the diagram: 10. Main frame of the equipment; 20. Negative pressure adsorption positioning plate; 30. Anti-deformation graded expansion support mechanism; 301. Sliding drive mechanism; 3011. Elliptical fixing frame; 3012. Drive motor; 3013. Transmission gear; 3014. Transmission rack; 3015. T-shaped sliding plate; 3016. Hollow end; 3017. First sliding rod; 302. Double-sided lateral expansion support mechanism; 3021. Transmission connecting rod; 3022. L-shaped support frame; 3023. Movable plate; 3024. Second sliding rod; 3025. Third sliding rod. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: Please refer to Figure 1-2 A rapid assembly and installation equipment for large-span steel structure roof color steel plates includes a main equipment frame 10, a negative pressure adsorption positioning plate 20, and an anti-deformation graded expansion support mechanism 30. The main equipment frame 10 is the load-bearing base of the whole machine and adopts a rigid frame structure as a whole. Several negative pressure adsorption positioning discs 20 are fixedly installed on the top of the main frame 10 of the equipment for overall adsorption, fixation and positioning of the color steel plate; The anti-deformation graded expansion support mechanism 30 is fixedly assembled on the left and right sides of the main frame 10 of the equipment, and works in conjunction with the negative pressure adsorption positioning plate 20 to achieve anti-deformation support throughout the hoisting and laying of large-size color steel plates. The anti-deformation graded expansion support mechanism 30 includes a sliding drive mechanism 301 and a double-sided lateral expansion support mechanism 302. The sliding drive mechanism 301 can slide along the front and rear direction of the main frame 10 of the equipment, thereby driving the two-sided lateral expansion support mechanism 302 to simultaneously complete the contraction or expansion displacement movement. The dual-sided lateral expansion support mechanism 302 is used to expand laterally to the left and right sides of the equipment, adapting to different ultra-wide color steel plates, accurately covering the weak areas of the large plates that are suspended on both sides, and specifically solving the core pain points of sagging on both sides, bending at the edges, and warping of the plate surface when hoisting large-size color steel plates. Example 2: Based on Example 1, as follows Figure 3-8As shown, the sliding drive mechanism 301 includes an elliptical fixed frame 3011. The rear end of the elliptical fixed frame 3011 is fixedly connected to one side of the main frame 10 of the equipment. A drive motor 3012 is provided at one bottom end of the elliptical fixed frame 3011, and the bottom end of the elliptical fixed frame 3011 is fixedly connected to the top of the drive motor 3012. A transmission gear 3013 is provided on the output shaft of the drive motor 3012, and the output shaft of the drive motor 3012 is fixedly connected to the center of the transmission gear 3013.

[0022] The outer surface of the transmission gear 3013 is provided with a transmission rack 3014, and the outer surface of the transmission gear 3013 is meshed with the bottom of the transmission rack 3014. The top of the transmission rack 3014 is provided with a T-shaped sliding plate 3015, and the top of the transmission rack 3014 is fixedly connected to the bottom protrusion of the T-shaped sliding plate 3015. The top of the elliptical fixing frame 3011 is provided with a hollow end 3016, and the inner surface of the hollow end 3016 is slidably connected to the bottom protrusion of the T-shaped sliding plate 3015.

[0023] The T-shaped sliding plate 3015 has a first sliding rod 3017 on one of its two protruding ends at the bottom. The protruding ends of the T-shaped sliding plate 3015 at the bottom are slidably connected to the outer surface of the first sliding rod 3017. The bottoms of the two first sliding rods 3017 are respectively fixedly connected to the top ends of the elliptical fixing frame 3011. The other end of the bottom of the T-shaped sliding plate 3015 is slidably hinged to the double-sided lateral unfolding support mechanism 302. The drive motor 3012 stably drives the transmission gear 3013 to rotate, and the transmission rack 3014 is driven to move back and forth using the gear meshing principle, thereby driving the top-fixed T-shaped sliding plate 3015 to move synchronously. Based on the hollow end 3016 set at the top of the elliptical fixing frame 3011, the sliding trajectory of the T-shaped sliding plate 3015 can be limited and constrained throughout the entire process, completely eliminating problems such as deviation, jamming, and derailment during the sliding process; at the same time, the bottom two sides of the T-shaped sliding plate 3015 slide synchronously along the outer surface of the first sliding rod 3017, further regulating the movement trajectory and ensuring that the overall transmission stroke is constant and the force is uniform.

[0024] The dual-sided lateral expansion support mechanism 302 includes two transmission connecting rods 3021. One end of each of the two transmission connecting rods 3021 is movably hinged to the other end of the bottom of the T-shaped sliding plate 3015. The other end of each of the two transmission connecting rods 3021 is provided with an L-shaped support frame 3022, and the other end of each of the two transmission connecting rods 3021 is movably hinged to the inner protruding part of the L-shaped support frame 3022. The tops of the two L-shaped support frames 3022 are respectively fixedly connected to multiple negative pressure adsorption positioning disks 20.

[0025] Both ends of the bottom bodies of the two L-shaped support frames 3022 are provided with movable plates 3023, and both ends of the bottom bodies of the two L-shaped support frames 3022 are hinged to one end of the movable plates 3023. The other end of each movable plate 3023 is provided with a second sliding rod 3024, and the other end of each movable plate 3023 is slidably connected to both sides of the outer surface of the second sliding rod 3024. The second sliding rod 3024 is vertically arranged. When the T-shaped sliding plate 3015 slides forward, it drives the transmission connecting rod 3021 to pull the L-shaped support frame 3022 to move, so that the movable plates 3023 connected to the opposite sides of the bottom of the L-shaped support frame 3022 slide to both sides along the outer surface of the second sliding rod 3024, realizing the smooth unfolding of the double-sided support structure. It can adapt the support span according to the width of the large-size color steel plate, accurately cover the weak areas of the suspended color steel plate on both sides, and effectively offset the sagging stress generated by the weight of the plate.

[0026] Each of the second sliding rods 3024 has a third sliding rod 3025 at the top of its outer protrusion, and the top of each second sliding rod 3024 is slidably connected to the outer surface of the third sliding rod 3025. The tops of the two third sliding rods 3025 are laterally fixed to the bottom of the elliptical fixing frame 3011. When the T-shaped sliding plate 3015 slides back to its initial position, the transmission connecting rod 3021 pulls the L-shaped support frame 3022 in the opposite direction, causing the movable plate 3023 to slide along the second sliding rod 3024 towards the bottom. At the same time, the second sliding rod 3024 also slides synchronously along the outer surface of the third sliding rod 3025 towards the center of the equipment, completing the inward retraction action of the entire support structure.

[0027] Both L-shaped support frames 3022 are arranged in an L-shape, and their installation heights are staggered. This allows the two sets of L-shaped support frames 3022 to overlap and nest together during the retraction and sliding process, merging the support structure towards the center. Through the unique staggered installation structure of the two L-shaped support frames 3022, during retraction, the two sets of L-shaped support frames 3022 can utilize their height difference to achieve staggered overlapping and nesting, allowing the double-sided support structure to completely converge towards the center of the equipment, greatly reducing the overall storage volume of the equipment and minimizing space occupation when the equipment is not in use. Combined with the integrated design of the top negative pressure adsorption positioning plate 20 and the bottom support mechanism, the overall structure of the equipment is compact, easy to disassemble and transport, and perfectly suited for high-altitude, confined working spaces on large-span steel structure roofs.

[0028] The working principle of this invention is as follows: The main frame 10 of the equipment serves as the load-bearing base of the entire machine and adopts a rigid frame structure to provide a stable installation benchmark and force support for each mechanism. Multiple negative pressure adsorption positioning plates 20 are fixedly installed on the top of the main frame 10 of the equipment, which can adsorb, fix and position large-size color steel plates as a whole. The anti-deformation graded expansion support mechanism 30 is fixedly assembled on the left and right sides of the main frame 10 of the equipment and forms a linkage with the negative pressure adsorption positioning plates 20, which can realize anti-deformation support operation throughout the entire process of color steel plate hoisting and laying. The anti-deformation graded expansion support mechanism 30 mainly consists of a sliding drive mechanism 301 and a double-sided lateral expansion support mechanism 302. The sliding drive mechanism 301 can slide along the front and rear direction of the main frame 10 of the equipment and drive the double-sided lateral expansion support mechanism 302 to simultaneously complete the contraction or expansion displacement movement, so that the double-sided lateral expansion support mechanism 302 can expand laterally to the left and right sides of the equipment to adapt to different ultra-wide color steel plates, accurately cover the weak areas of the large plate on both sides, and effectively solve the problems of sagging on both sides, edge bending, and plate warping during the hoisting of large-size color steel plates; the specific working process is as follows: During operation, the drive motor 3012 stably drives the transmission gear 3013 to rotate. The transmission gear 3013 drives the transmission rack 3014 to move back and forth through the meshing structure on the outer surface. The top of the transmission rack 3014 is fixedly connected to the bottom protrusion of the T-shaped sliding plate 3015, thereby driving the T-shaped sliding plate 3015 to move back and forth synchronously. The hollow end 3016 on the top of the elliptical fixing frame 3011 slides and engages with the bottom protrusion of the T-shaped sliding plate 3015, which can limit and constrain the sliding trajectory of the T-shaped sliding plate 3015 throughout the entire process, preventing deviation, jamming, and derailment. At the same time, the protrusions on both sides of the bottom of the T-shaped sliding plate 3015 slide and are fitted onto the outer surface of the first sliding rod 3017, which can further regulate the movement trajectory of the T-shaped sliding plate 3015, ensuring that the overall transmission stroke is constant and the force is uniform. The other end of the bottom of the T-shaped sliding plate 3015 is slidably hinged to the double-sided lateral unfolding support mechanism 302, which can drive the double-sided lateral unfolding support mechanism 302 to complete the opening and closing action through its own sliding. When the T-shaped sliding plate 3015 slides forward, it will pull the two sets of L-shaped support frames 3022 to move synchronously through the transmission connecting rod 3021. The movable plate 3023 with the bottom ends of the L-shaped support frame 3022 fixed in opposite directions will allow the other end of the protruding part to slide smoothly onto the outer surface of the vertically arranged second sliding rod 3024 to slide smoothly to both sides of the equipment, so as to realize the overall outward expansion of the double-sided horizontal expansion support mechanism 302, thereby adapting to the width of the ultra-wide color steel plate, supporting the suspended areas on both sides of the color steel plate, and offsetting the sagging stress generated by the weight of the plate. When the T-shaped sliding plate 3015 slides back to its initial position, the transmission connecting rod 3021 pulls the L-shaped support frame 3022 in the opposite direction, causing the movable plate 3023 to slide along the second sliding rod 3024 to the bottom. At the same time, the second sliding rod 3024 slides synchronously along the outer surface of the third sliding rod 3025 towards the center of the equipment, thereby completing the inward retraction and reset action of the entire double-sided lateral expansion support mechanism 302. The two L-shaped support frames 3022 adopt a staggered installation structure. During the retraction and sliding process, they can use their height difference to achieve staggered overlapping and nesting, so that the double-sided support structure can be completely brought together to the middle of the equipment, greatly reducing the overall space occupied by the equipment when it is idle. Combined with the integrated structure of the top negative pressure adsorption positioning plate 20 and the bottom anti-deformation graded expansion support mechanism 30, the overall structure of the equipment is compact and convenient for transportation and erection. It can adapt to the high-altitude and narrow working environment of large-span steel structure roofs, and stably complete the anti-deformation, high-precision and rapid assembly installation of large-size color steel plates.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rapid assembly and installation equipment for large-span steel structure roof color steel panels, comprising a main frame (10), a negative pressure adsorption positioning plate (20), and an anti-deformation graded expansion support mechanism (30), characterized in that: The main frame (10) of the equipment is the base for bearing the whole machine, and the whole adopts a rigid frame structure; Several negative pressure adsorption positioning discs (20) are fixedly installed on the top of the main frame (10) of the equipment for overall adsorption, fixation and positioning of the color steel plate; The anti-deformation graded expansion support mechanism (30) is fixedly assembled on the left and right sides of the main frame (10) of the equipment and works in conjunction with the negative pressure adsorption positioning plate (20) to achieve anti-deformation support throughout the hoisting and laying of large-size color steel plates; The anti-deformation graded expansion support mechanism (30) includes a sliding drive mechanism (301) and a double-sided lateral expansion support mechanism (302). The sliding drive mechanism (301) can slide along the front and rear direction of the main frame (10) of the equipment, thereby driving the two-sided lateral expansion support mechanism (302) to simultaneously complete the contraction or expansion displacement movement; The dual-sided lateral expansion support mechanism (302) is used to expand laterally to the left and right sides of the equipment to adapt to different ultra-wide color steel plates and accurately cover the suspended weak areas on both sides of the large plate.

2. The rapid assembly and installation equipment for large-span steel structure roof color steel panels according to claim 1, characterized in that: The sliding drive mechanism (301) includes an elliptical fixed frame (3011), the rear end of which is fixedly connected to one side of the main frame (10) of the equipment, and a drive motor (3012) is fixedly connected to one bottom end of the elliptical fixed frame (3011), and a transmission gear (3013) is fixedly connected to the output shaft of the drive motor (3012).

3. The rapid assembly and installation equipment for large-span steel structure roof color steel panels according to claim 2, characterized in that: The outer surface of the transmission gear (3013) is meshed with a transmission rack (3014), and a T-shaped sliding plate (3015) is fixedly connected to the top of the transmission rack (3014). The top of the elliptical fixing frame (3011) is provided with a hollow end (3016), and the inner surface of the hollow end (3016) is slidably connected to the bottom protrusion of the T-shaped sliding plate (3015).

4. The rapid assembly and installation equipment for large-span steel structure roof color steel panels according to claim 3, characterized in that: The protruding portions at one end of the bottom two sides of the T-shaped sliding plate (3015) are slidably connected to the first sliding rods (3017). The bottoms of the two first sliding rods (3017) are respectively fixedly connected to the top two ends of the elliptical fixing frame (3011). The other end of the bottom of the T-shaped sliding plate (3015) is slidably hinged to the double-sided horizontal unfolding support mechanism (302).

5. The rapid assembly and installation equipment for large-span steel structure roof color steel panels according to claim 4, characterized in that: The dual-sided lateral expansion support mechanism (302) includes two transmission connecting rods (3021). One end of each of the two transmission connecting rods (3021) is movably hinged to the other end of the bottom of the T-shaped sliding plate (3015). The other end of each of the two transmission connecting rods (3021) is movably hinged to an L-shaped support frame (3022). The tops of the two L-shaped support frames (3022) are fixedly connected to multiple negative pressure adsorption positioning discs (20).

6. The rapid assembly and installation equipment for large-span steel structure roof color steel panels according to claim 5, characterized in that: Both ends of the bottom body of the two L-shaped support frames (3022) are hinged to movable plates (3023) respectively. The other end of each movable plate (3023) is slidably connected to a second sliding rod (3024). The second sliding rod (3024) is arranged vertically.

7. The rapid assembly and installation equipment for large-span steel structure roof color steel panels according to claim 6, characterized in that: Each of the second sliding rods (3024) has a third sliding rod (3025) slidably connected to the top of the outer protrusion. The tops of the two third sliding rods (3025) are laterally fixed to the bottom of the elliptical fixing frame (3011).

8. The rapid assembly and installation equipment for large-span steel structure roof color steel panels according to claim 6, characterized in that: Both L-shaped support frames (3022) are arranged in an L-shaped structure, and the installation heights of the two L-shaped support frames (3022) are staggered, so that the two sets of L-shaped support frames (3022) can be staggered and nested together during the closing and sliding process, so as to realize the support frame moving closer to the middle and merging.