Multi-layer prefabricated laminated slab transportation and storage rack and stacking method and transferring method of multi-layer prefabricated laminated slab transportation and storage rack

Abstract

The invention discloses a transportation and storage rack for multilayer prefabricated laminated slabs. The transportation and storage rack comprises a rack body, reinforcing rods and layering racks. The frame body forms a three-dimensional frame. Limiting columns of the reinforcing rods can be inserted into limiting grooves in the top ends of large stand columns of the frame body, and the overall stability is improved. The invention further discloses a stacking method which comprises the steps that the prefabricated laminated slabs are stacked in the frame body layer by layer and fixed through the reinforcing rods; the frame body and the prefabricated laminated slab are carried to a preset position through large mechanical equipment; and the multiple layers of prefabricated laminated slab transportation and storage racks are sequentially stacked to the preset height, and it is ensured that the vertically adjacent rack bodies are matched through the limiting columns and the limiting grooves. The invention further discloses a transferring method which comprises the steps that the prefabricated laminated slabs are stacked in the frame body layer by layer and fixed through the reinforcing rods; the frame body and the prefabricated laminated slabs are carried to a transport vehicle through large mechanical equipment, and the reinforcing rods are taken down; the other frame body and the prefabricated laminated slab are carried to the existing frame body, and a transfer structure is formed; and a plurality of groups of transfer structures are sequentially distributed on a transport vehicle. The transportation and storage efficiency of the prefabricated laminated slab is improved, the transportation cost is reduced, the storage space is saved, and the prefabricated laminated slab has important practical value and popularization and application prospects.

Description

Technical Field

[0001] The invention relates to the field of assembled buildings, in particular to a multi-layer prefabricated composite board transport and storage rack and a use method thereof.

[0002] The invention relates to a stacking method for a multi-layer prefabricated laminated board transport and storage rack.

[0003] The invention relates to a transfer method of a multi-layer prefabricated laminated board transport storage rack. Background Art

[0004] At present, as my country vigorously promotes the development of prefabricated buildings, the production demand for prefabricated composite panels is also increasing. The land for factories and construction sites is becoming increasingly scarce, and it is necessary to save the storage space of prefabricated composite panels as much as possible. The transportation efficiency of prefabricated composite panels is low and the cost is high. It is necessary to increase the transportation volume of prefabricated composite panels as much as possible while meeting the requirements of the specifications.

[0005] The patent with application number CN202222194978.9 discloses a detachable multi-layer prefabricated composite board transportation tooling, including a tooling body, the tooling body includes a base and a support frame, the support frame and the base are detachably connected; the support frame includes two groups of columns and multiple support layers, the multiple support layers are arranged in parallel with each other, the two groups of columns are symmetrically fixed on the base, the support layer includes multiple beams one and multiple beams two, the beam one is detachably connected to the symmetrical columns, the beam two is detachably connected to the multiple beams one connecting the two groups of columns, and the beam one and the beam two are cross-arranged. The present invention has a simple structure and a reasonable design, which can reduce the transportation cost of prefabricated composite boards, reduce their quality problems, increase the number of transportation layers and facilitate storage.

[0006] However, the above patented technology has the disadvantages of being not stable enough and not being able to be stacked in multiple layers. In order to solve the above problems, we propose a multi-layer prefabricated composite panel transportation and storage rack and a method for using the same. Summary of the invention

[0007] The purpose of the present invention is to provide a multi-layer prefabricated composite board transportation and storage rack to solve the problems raised in the above background technology:

[0008] (1) How to improve the transportation and storage efficiency of prefabricated composite panels and reduce enterprise costs.

[0009] The purpose of the present invention is to provide a multi-layer prefabricated composite board transportation and storage rack to solve the problems existing in the above-mentioned background technology.

[0010] The purpose of the present invention is to provide a multi-layer prefabricated composite board transportation and storage rack to solve the problems existing in the above-mentioned background technology.

[0011] To achieve the above object, the present invention provides the following technical solutions:

[0012] A multi-layer prefabricated composite board transport and storage rack;

[0013] It comprises a frame body and two reinforcement rods, wherein the frame body comprises four upright posts, four first limit posts, two first cross bars, two first longitudinal bars, two second longitudinal bars and a plurality of second cross bars;

[0014] The four columns are arranged vertically, and the bottoms of the four columns are fixedly connected by two first cross bars and two first longitudinal bars respectively, and the two first cross bars and the two first longitudinal bars are wound to form a closed figure, and the two ends of the plurality of second cross bars are fixedly connected to the two first longitudinal bars respectively, and the upper sides of the two first cross bars, the two first longitudinal bars and the plurality of second cross bars constitute a stacking area for placing prefabricated composite panels, and the four first limiting columns correspond to the four columns one by one, and the four limiting columns are fixedly connected to the bottoms of the corresponding columns, and the upper end surfaces of the columns are provided with limiting grooves that cooperate with the first limiting columns, and the two second longitudinal bars are fixedly connected to the upper ends of the four columns respectively;

[0015] The direction of the reinforcement rod is consistent with that of the first cross bar. Second limiting columns are respectively extended from the bottom of both ends of the reinforcement rod, and the second limiting columns can cooperate with the limiting grooves of the columns.

[0016] Based on the above technical solution, the present invention can also be improved as follows.

[0017] Furthermore, the frame also includes two groups of diagonal bracing rods, which correspond one-to-one to the two second longitudinal rods and the two first longitudinal rods. Each group of diagonal bracing rods includes two diagonal bracing rods, and the two diagonal bracing rods are located between the two second longitudinal rods and the two first longitudinal rods. The lower ends of the diagonal bracing rods are fixedly connected to the middle side walls of the corresponding first longitudinal rods, and the upper ends of the diagonal bracing rods are fixedly connected to the connection between the corresponding second longitudinal rods and the columns.

[0018] Furthermore, the frame also includes two ladders, which are located on both sides of the stacking area, the lower ends of the ladders are fixedly connected to the corresponding first longitudinal rods, and the upper ends of the ladders are fixedly connected to the corresponding second longitudinal rods.

[0019] Furthermore, a lifting lug is fixedly connected to the upper side wall of the column; and a plurality of lifting lugs are also fixedly connected to the upper end surface of the reinforcement rod.

[0020] Furthermore, it also includes a plurality of layered racks, wherein the layered racks include a partition rod and a plurality of supporting legs, wherein the plurality of supporting legs are fixedly connected to the side walls of the partition rod at intervals along the axial direction of the partition rod.

[0021] Furthermore, a stiffening plate is fixedly connected at the connection position between the column and the first cross bar and the first longitudinal bar.

[0022] With this structure, the frame is composed of columns, longitudinal bars, cross bars and other components to form a three-dimensional frame. To facilitate the forklift to carry the frame and prefabricated composite panels as a whole, the first limit column is welded and fixed on the bottom of the column. In addition, to facilitate the overall lifting of the frame and prefabricated composite panels by large mechanical equipment, the frame lifting lugs are welded and fixed on the upper side of the column. To strengthen the integrity of the frame, a stiffening plate is welded and fixed on the bottom of the frame, and diagonal braces are welded and fixed on the left and right sides. To facilitate workers' operation and inspection, ladders are welded and fixed on the left and right sides of the frame.

[0023] The second limit column of the reinforcement rod can be inserted into the limit slot at the top of the frame column, effectively improving the overall stability and safety. The reinforcement rod has a simple structure and light weight, and can be manually carried and installed. The reinforcement rod is welded with a reinforcement rod lifting lug, which can also be used for mechanical equipment lifting and installation.

[0024] The beneficial effects of the multi-layer prefabricated composite board transport and storage rack are:

[0025] (1) Improve handling efficiency: Through the design of the frame and reinforcement rods, the prefabricated panels can be handled as a whole at one time by forklifts or large mechanical equipment, which significantly improves the handling efficiency of the prefabricated composite panels and reduces the company's transportation costs.

[0026] (2) Improve transportation efficiency: By stacking multiple layers of frames, the transport vehicle can transport more prefabricated composite panels at one time, thereby improving transportation efficiency and reducing transportation costs.

[0027] (3) Improve storage efficiency: By stacking multiple layers of racks, more prefabricated composite panels can be stored in the same size of the site, thereby improving site utilization and reducing enterprise costs.

[0028] To achieve the above object, the present invention also provides the following technical solutions:

[0029] A stacking method of the multi-layer prefabricated composite panel transport storage rack as described above comprises the following steps:

[0030] a) stacking the prefabricated composite panels layer by layer in the frame, and after the prefabricated composite panels are stacked, the second limit column on the reinforcement rod is inserted and fixed to the upper end of the frame column;

[0031] b) transporting the frame and the prefabricated composite board described in step a) to a predetermined position as a whole at one time by a forklift or large-scale mechanical equipment, and removing the two reinforcement rods;

[0032] c) repeating step b) to stack the multi-layer prefabricated composite board transport and storage racks stacked in step b) in sequence;

[0033] d) After the multi-layer prefabricated composite board transport storage rack is stacked to a predetermined height in step c), step a) is repeated, and the multi-layer prefabricated composite board transport storage rack in step a) is stacked to the highest position by a forklift or large mechanical equipment;

[0034] Among them, in any upper and lower adjacent multi-layer prefabricated composite board transport and storage racks, the first limiting columns of the upper multi-layer prefabricated composite board transport and storage racks respectively cooperate with the limiting grooves of the lower multi-layer prefabricated composite board transport and storage racks.

[0035] After adopting such a structure, each layer of multi-layer prefabricated composite board transport storage rack can store no more than six prefabricated composite boards, and can store no more than 18 prefabricated composite boards. After three layers are plugged in and fixed, the second limit column on the reinforcement rod is plugged in and fixed to the upper end of the uppermost frame column. The same size of the site can store three times the amount of prefabricated composite boards as before, which improves the site utilization rate and reduces the cost of the enterprise.

[0036] To achieve the above object, the present invention further provides the following technical solutions:

[0037] A method for transporting prefabricated composite panels using the multi-layer prefabricated composite panel transport and storage rack as described above comprises the following steps:

[0038] a) stacking the prefabricated composite panels layer by layer in the frame, and after the prefabricated composite panels are stacked, the second limit column on the reinforcement rod is inserted and fixed to the upper end of the frame column;

[0039] b) transporting the frame and the prefabricated composite panels described in step a) to a transport vehicle as a whole at one time by a forklift or large mechanical equipment, and removing the two reinforcement rods;

[0040] c) stacking the remaining prefabricated composite panels layer by layer in the frame of another multi-layer prefabricated composite panel transport and storage rack. After the prefabricated composite panels are stacked, the second limit column on the reinforcement rod is plugged and fixed to the upper end of the frame column, and the prefabricated composite panels are moved to the multi-layer prefabricated composite panel transport and storage rack on the transport vehicle in step b) at one time by a forklift or large mechanical equipment. The two layers of multi-layer prefabricated composite panel transport and storage racks form a transfer structure that is convenient for transportation;

[0041] d) Repeat steps a) to c) to sequentially distribute multiple groups of transfer structures on the transport vehicle until the transport vehicle is fully loaded, and then transfer the prefabricated composite panels to the construction site.

[0042] The beneficial effects of the transfer method of the multi-layer prefabricated composite board transport storage rack are:

[0043] (1) Improve transportation efficiency: Through multi-layer stacking, the transport vehicle can transport more prefabricated composite panels at one time, significantly improving transportation efficiency.

[0044] (2) Reduce transportation costs: Reduce the number of transportation times and reduce transportation costs.

[0045] (3) Save storage space: The multi-layer stacking design saves storage space and improves site utilization.

[0046] (4) Improve stability: The design of reinforcement rods and limit columns ensures the stability of the frame and prefabricated composite panels during transportation, reducing the risks during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a three-dimensional diagram of the multi-layer prefabricated composite panel transportation and storage rack in the first embodiment.

[0048] Figure 2 It is a three-dimensional diagram of the reinforcement rods of the multi-layer prefabricated composite panel transport and storage rack in the first embodiment.

[0049] Figure 3 It is a three-dimensional diagram of the layered rack of the multi-layer prefabricated composite panel transportation and storage rack in the first embodiment.

[0050] Figure 4 This is a usage status diagram of the multi-layer prefabricated composite panel transportation and storage rack in Example 1.

[0051] Figure 5 It is a three-dimensional diagram of the stacking method of the multi-layer prefabricated composite panel transportation and storage rack in the second embodiment.

[0052] Figure 6 This is a schematic diagram of a method for transferring a multi-layer prefabricated composite panel transport and storage rack in Example 3.

[0053] Figure 7 This is the second schematic diagram of the transfer method of the multi-layer prefabricated composite panel transport and storage rack in the third embodiment.

[0054] Figure 8 This is the third schematic diagram of the transfer method of the multi-layer prefabricated composite panel transport and storage rack in the third embodiment.

[0055] Description of the numbers in the figure:

[0056] Frame body 100; reinforcing rod 200; prefabricated composite plate 300; forklift 400; transport vehicle 500; column 110; first limiting column 111; first longitudinal rod 130; second longitudinal rod 120; first cross bar 140; second cross bar 150; stiffening plate 160; diagonal brace 170; ladder 180; lifting lug 190; lifting lug 220; second limiting column 210; tiered frame 600; partition rod 610; support leg 620; transfer structure 700. DETAILED DESCRIPTION

[0057] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0058] The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementations.

[0059] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0060] Embodiment 1

[0061] See also Figures 1 to 4 .

[0062] The multi-layer prefabricated composite board transportation and storage rack comprises a rack body 100 , two reinforcement rods 200 and a plurality of layered racks 600 .

[0063] The frame 100 includes four upright posts 110 , four first limiting posts 111 , two first cross bars 140 , two first longitudinal bars 130 , two second longitudinal bars 120 , two sets of diagonal braces 170 , two ladders 180 and three second cross bars 150 .

[0064] The four columns 110 are arranged vertically, and the bottoms of the four columns 110 are respectively welded and fixed by two first cross bars 140 and two first longitudinal bars 130. The center lines of the two first cross bars 140 and the center lines of the plurality of second cross bars 150 are in the same plane. The two first cross bars 140 and the plurality of second cross bars 150 are arranged in a front-to-back direction, and the two first longitudinal bars 130 and the two second longitudinal bars 120 are arranged in a left-to-right direction. The two first cross bars 140 and the two first longitudinal bars 130 are wound into a closed figure, and the two ends of the plurality of second cross bars 150 are respectively welded and fixed to the two first longitudinal bars 130. A horizontal bar 140, two first longitudinal bars 130 and the upper sides of several second horizontal bars 150 constitute a stacking area for placing prefabricated composite panels 300. Four first limit columns 111 correspond one-to-one to four columns 110. The four limit columns are welded and fixed to the bottom of the corresponding columns 110. The upper end faces of the columns 110 are provided with limit grooves that cooperate with the first limit columns 111. The two second longitudinal bars 120 are welded and fixed to the upper ends of the four columns 110 respectively. Ears 190 are welded and fixed to the upper side walls of the columns 110. Stiffening plates 160 are welded and fixed to the connecting positions between the columns 110 and the first horizontal bar 140 and the first longitudinal bar 130.

[0065] The direction of the reinforcement rod 200 is consistent with that of the first cross bar 140 , and second limiting columns 210 extend from the bottom of both ends of the reinforcement rod 200 , respectively. The second limiting columns 210 can cooperate with the limiting grooves of the columns 110 , and two lifting ears 220 are also welded and fixed to the upper end surface of the reinforcement rod 200 .

[0066] The two groups of diagonal brace rods 170 correspond one to one with the two second longitudinal rods 120 and the two first longitudinal rods 130. Each group of diagonal brace rods 170 includes two diagonal brace rods 170. The two diagonal brace rods 170 are located between the two second longitudinal rods 120 and the two first longitudinal rods 130. The lower ends of the diagonal brace rods 170 are welded and fixed to the middle side walls of the corresponding first longitudinal rods 130, and the upper ends of the diagonal brace rods 170 are welded and fixed to the connection between the corresponding second longitudinal rods 120 and the columns 110.

[0067] The ladder 180 is located at both sides of the stacking area. The lower end of the ladder 180 is welded and fixed to the corresponding first longitudinal rod 130 , and the upper end of the ladder 180 is welded and fixed to the corresponding second longitudinal rod 120 .

[0068] The layered rack 600 includes a partition rod 610 and a plurality of legs 620, and the plurality of legs 620 are welded and fixed to the side wall of the partition rod 610 at intervals along the axial direction of the partition rod 610. When two adjacent prefabricated composite panels 300 are stacked, a plurality of layered racks 600 are sequentially arranged between the two prefabricated composite panels 300, and the plurality of legs 620 of the layered rack 600 are supported on the upper end surface of the prefabricated composite panel 300 of the lower layer, and the partition rod 610 of the layered rack 600 is in contact with the lower end surface of the prefabricated composite panel 300 of the upper layer.

[0069] The layered rack 600 can evenly distribute the weight of the upper prefabricated composite board 300 to the lower prefabricated composite board 300, avoiding local overload, thereby improving the stability of the overall structure. The legs 620 and the partition rods 610 of the layered rack 600 can be flexibly adjusted according to the size and weight of the prefabricated composite board 300, adapting to prefabricated composite boards 300 of different specifications, thereby improving the versatility and applicability of the rack body 100. The design of the layered rack 600 increases the gap between the prefabricated composite boards 300, making it easier for workers to inspect and maintain, and to promptly discover and deal with potential problems.

[0070] When in use, the multi-layer prefabricated composite board transport storage rack of this embodiment can store no more than six prefabricated composite boards 300, and can use a forklift 400 to carry six prefabricated composite boards 300 to a designated location at one time; by using the frame 100 lifting lug 190 on the frame 100 of the first embodiment of this embodiment, it can also be realized that six prefabricated composite boards 300 are carried to a designated location at one time by large-scale mechanical equipment. The multi-layer prefabricated composite board transport storage rack improves the handling efficiency of prefabricated composite boards 300 and reduces the transportation cost of the enterprise.

[0071] Embodiment 2

[0072] like Figure 5 shown.

[0073] This embodiment relates to a stacking method of a multi-layer prefabricated composite board transport and storage rack, which mainly uses the multi-layer prefabricated composite board transport and storage rack in the first embodiment and includes the following steps:

[0074] a) stacking the prefabricated composite panels 300 layer by layer in the frame 100, and after the prefabricated composite panels 300 are stacked, the second limit column 210 on the reinforcement rod 200 is plugged and fixed to the upper end of the column 110 of the frame 100, so that the forklift 400 or large mechanical equipment can carry the frame 100 and the prefabricated composite panels 300 in one go;

[0075] b) transporting the frame 100 and the prefabricated laminated board 300 in step a) to a predetermined position as a whole at one time by a forklift 400 or a large mechanical device, and removing the two reinforcement rods 200;

[0076] c) repeating step b) on both sides, stacking the multi-layer prefabricated composite board transport storage racks stacked in step b) in sequence;

[0077] d) When the multi-layer prefabricated composite panel transport storage racks in step c) are stacked to a predetermined height, the multi-layer prefabricated composite panel transport storage racks in step a) are stacked to the highest point at one time by a forklift 400 or large mechanical equipment to form a three-layer stacking structure.

[0078] Among them, in any upper and lower adjacent multi-layer prefabricated composite board transport and storage racks, the first limiting columns 111 of the upper multi-layer prefabricated composite board transport and storage rack respectively cooperate with the limiting grooves of the lower multi-layer prefabricated composite board transport and storage rack.

[0079] Each multi-layer prefabricated composite board transport storage rack can store less than six prefabricated composite boards 300, and is used to store less than eighteen prefabricated composite boards 300. After three layers are plugged and fixed, the second limit column 210 on the reinforcement rod 200 is plugged and fixed to the upper end of the column 110 of the uppermost frame 100. The same size of the site can store three times the amount of prefabricated composite boards 300 as in the past, which improves the site utilization rate and reduces the cost of the enterprise.

[0080] Embodiment 3

[0081] like Figures 6 to 8 shown.

[0082] This embodiment relates to a method for transporting prefabricated composite panels using a multi-layer prefabricated composite panel transport and storage rack, which also uses the multi-layer prefabricated composite panel transport and storage rack in the first embodiment, and includes the following steps:

[0083] a) stacking the prefabricated composite panels 300 layer by layer in the frame 100, and after the prefabricated composite panels 300 are stacked, the second limit column 210 on the reinforcement rod 200 is plugged and fixed to the upper end of the column 110 of the frame 100, so that the forklift 400 can carry the frame 100 and the prefabricated composite panels 300 in one go;

[0084] b) The frame 100 and the prefabricated composite board 300 described in step a) are transported to a transport vehicle 500 by a forklift 400 at one time, and the two reinforcement rods 200 are removed;

[0085] c) stacking the prefabricated composite panels 300 layer by layer in the frame 100 of another multi-layer prefabricated composite panel transport and storage rack. After the prefabricated composite panels 300 are stacked, the second limit column 210 on the reinforcement rod 200 is plugged and fixed to the upper end of the column 110 of the frame 100, and the forklift 400 is used to move the prefabricated composite panel transport and storage rack on the transport vehicle 500 in step b) at one time. The two layers of multi-layer prefabricated composite panel transport and storage racks form a transfer structure 700 that is convenient for transportation;

[0086] d) Repeat steps a) to c) to sequentially distribute multiple groups of transfer structures 700 on the transport vehicle 500 until the transport vehicle 500 is fully loaded (in this embodiment, a full load is four groups of transfer structures 700), and transfer the prefabricated composite panels 300 to the construction site.

[0087] The above are only three embodiments of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the principles of the present invention, and these should also be regarded as falling within the scope of protection of the present invention.

Claims

1. A multi-layer prefabricated laminated board (300) transport and storage rack, characterized by: The invention comprises a frame body (100) and two reinforcement rods (200), wherein the frame body (100) comprises four upright posts (110), four first limit posts (111), two first cross bars (140), two first longitudinal bars (130), two second longitudinal bars (120) and a plurality of second cross bars (150); Four columns (110) are arranged vertically, and the bottoms of the four columns (110) are respectively fixedly connected by two first cross bars (140) and two first longitudinal bars (130), and the two first cross bars (140) and the two first longitudinal bars (130) are wound to form a closed figure, and the two ends of the plurality of second cross bars (150) are respectively fixedly connected to the two first longitudinal bars (130), and the upper sides of the two first cross bars (140), the two first longitudinal bars (130) and the plurality of second cross bars (150) constitute a stacking area for placing prefabricated composite panels (300), and the four first limiting columns (111) correspond to the four columns (110) one by one, and the four limiting columns are fixedly connected to the bottoms of the corresponding columns (110), and the upper end surfaces of the columns (110) are provided with limiting grooves that match the first limiting columns (111), and the two second longitudinal bars (120) are respectively fixedly connected to the upper ends of the four columns (110); The direction of the reinforcement rod (200) is consistent with that of the first crossbar (140), and second limiting columns (210) extend from the bottom of both ends of the reinforcement rod (200), respectively, and the second limiting columns (210) can cooperate with the limiting grooves of the columns (110).

2. The multi-layer prefabricated composite board transport and storage rack according to claim 1 is characterized in that: The frame (100) also includes two groups of diagonal brace (170) rods, and the two groups of diagonal brace (170) rods correspond one to one with the two second longitudinal rods (120) and the two first longitudinal rods (130). Each group of diagonal brace (170) rods includes two diagonal brace (170) rods, and the two diagonal brace (170) rods are located between the two second longitudinal rods (120) and the two first longitudinal rods (130). The lower ends of the diagonal brace (170) rods are fixedly connected to the middle side walls of the corresponding first longitudinal rods (130), and the upper ends of the diagonal brace (170) rods are fixedly connected to the connection between the corresponding second longitudinal rods (120) and the columns (110).

3. The multi-layer prefabricated composite board transport and storage rack according to claim 1 is characterized in that: The frame (100) further comprises two ladders (180), wherein the ladders (180) are located at both sides of the stacking area, the lower ends of the ladders (180) are fixedly connected to the corresponding first longitudinal rods (130), and the upper ends of the ladders (180) are fixedly connected to the corresponding second longitudinal rods (120).

4. The multi-layer prefabricated composite board transport and storage rack according to claim 1 is characterized in that: A lifting lug (190) is fixedly connected to the upper side wall of the column (110); and a plurality of lifting lugs (220) are also fixedly connected to the upper end surface of the reinforcement rod (200).

5. The multi-layer prefabricated composite board transport and storage rack according to claim 1 is characterized in that: It also comprises a plurality of layered racks (600), wherein the layered racks (600) comprise a partition rod (610) and a plurality of supporting legs (620), wherein the plurality of supporting legs (620) are fixedly connected to the side wall of the partition rod (610) at intervals along the axial direction of the partition rod (610).

6. The multi-layer prefabricated composite board transport and storage rack according to claim 1 is characterized in that: A stiffening plate (160) is fixedly connected at the connection position between the upright post (110) and the first cross bar (140) and the first longitudinal bar (130).

7. A method for stacking a multi-layer prefabricated composite panel transport and storage rack according to any one of claims 1 to 6, comprising the following steps: a) stacking the prefabricated composite panels (300) layer by layer in the frame (100), and after the prefabricated composite panels (300) are stacked, plugging and fixing the second limit column (210) on the reinforcement rod (200) to the upper end of the column (110) of the frame (100); b) transporting the frame (100) and the prefabricated laminated board (300) described in step a) to a predetermined position as a whole at one time by means of a forklift (400) or large-scale mechanical equipment, and removing the two reinforcement rods (200); c) repeating step b) to stack the multi-layer prefabricated composite board transport and storage racks stacked in step b) in sequence; d) after the multi-layer prefabricated composite board transport storage rack is stacked to a predetermined height in step c), step a) is repeated, and the multi-layer prefabricated composite board transport storage rack in step a) is stacked to the highest position by a forklift (400) or large mechanical equipment; Among them, in any upper and lower adjacent multi-layer prefabricated composite board transport and storage racks, the first limiting column (111) of the upper multi-layer prefabricated composite board transport and storage rack is respectively matched with the limiting groove of the lower multi-layer prefabricated composite board transport and storage rack.

8. A method for transporting prefabricated composite panels using the multi-layer prefabricated composite panel transport and storage rack according to any one of claims 1 to 6, comprising the following steps: a) stacking the prefabricated composite panels (300) layer by layer in the frame (100), and after the prefabricated composite panels (300) are stacked, plugging and fixing the second limit column (210) on the reinforcement rod (200) to the upper end of the column (110) of the frame (100); b) transporting the frame (100) and the prefabricated composite board (300) in step a) to a transport vehicle (500) in one go by means of a forklift (400) or large-scale mechanical equipment, and removing the two reinforcement rods (200); c) stacking the remaining prefabricated composite panels (300) layer by layer in a frame (100) of another multi-layer prefabricated composite panel transport and storage rack. After the prefabricated composite panels (300) are stacked, the second limit column (210) on the reinforcement rod (200) is plugged and fixed to the upper end of the column (110) of the frame (100). The prefabricated composite panels are moved to the multi-layer prefabricated composite panel transport and storage rack on the transport vehicle (500) in step b) by a forklift (400) or large-scale mechanical equipment. The two layers of multi-layer prefabricated composite panel transport and storage racks form a transfer structure (700) that is convenient for transportation. d) Repeat steps a) to c) to sequentially distribute the multiple transfer structures (700) on the transport vehicle (500) until the transport vehicle (500) is fully loaded, and then transfer the prefabricated composite panels (300) to the construction site.

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