Mounting structure and assembly type floor slab

Abstract

The invention relates to the technical field of floor slab installation, and discloses an installation structure and an assembly type floor slab. The support unit is used for being connected with the supporting beam, the support unit comprises a first supporting rod and a second supporting rod, a rotating mechanism is arranged between the first supporting rod and the second supporting rod, and folding of the first supporting rod and the second supporting rod is achieved through the rotating mechanism; the supporting unit is installed on the supporting beam to form a frame structure, the supporting unit comprises a supporting frame, the bottoms of the two sides of the supporting frame are rotationally connected with supporting plates, and the supporting plates are rotationally opened to support a floor slab; the floor slab is mounted by arranging the mounting structure, the mounting structure can be folded and contracted so as to be integrally transported and directly unfolded after reaching the mounting position, the complexity caused by frequent mounting operation behaviors is avoided, meanwhile, the support units and the supporting units can be adjusted, and the mounting structure is convenient to mount and dismount. Therefore, the mounting structure can adapt to floors of various sizes.

Description

Technical Field

[0001] The present invention belongs to the technical field of floor slab installation, and in particular relates to an installation structure and an assembled floor slab. Background Art

[0002] In the construction industry, the performance and construction efficiency of floor and roof structures have always been core issues. Currently, traditional building structures have functional defects and construction limitations in scenarios such as sloping roofs, the top floors of high-rise buildings, and ordinary floor slabs. The specific limitations are as follows:

[0003] While traditional reinforced concrete (PC) roofs offer a certain degree of structural stability, they lack sun protection, heat insulation, and anti-seepage properties. In contrast, lightweight roofs constructed with composite panels (e.g., colored steel exterior, foam interior, and tiles) offer improved insulation, but to withstand heavy rain and strong winds and manage the roof's weight, they require the lightweight steel beams and columns to be thickened and reinforced, increasing material costs and construction complexity. Furthermore, lightweight roofs have limited anti-seepage performance and durability, making them prone to leakage and material degradation over time, making them difficult to meet the long-term needs of a building.

[0004] The rooftop structure of multi-story and high-rise buildings, whether constructed with reinforced concrete (PC) or all-steel, requires multiple complex steps to achieve sun protection, heat insulation, waterproofing, and anti-seepage properties. After the cast-in-place structure naturally solidifies, it must be manually graded to allow for water flow, followed by the laying of an asphalt waterproofing layer, the filling of thermal insulation materials, and mortar leveling. Finally, a protective layer of fine stone must be poured and finished. This process is not only cumbersome and labor-intensive, costly in terms of labor, materials, and time, but the resulting rooftop slab can be up to three times thicker than a typical PC floor slab and more than twice its own weight, increasing the overall building load and placing higher demands on the foundation and load-bearing structure.

[0005] In the field of ordinary floor slabs, traditional reinforced concrete structures and steel structures both rely on on-site casting or semi-casting processes, resulting in low construction efficiency and significant impacts from environmental factors. To meet high load-bearing requirements, "fat beams and columns" or multi-beam and multi-column designs are often adopted, resulting in reduced building space utilization and material waste. Even when prestressed floor slab technology is used, on-site pouring is still required. For large-span prestressed floor slabs, to achieve extra-long and extra-wide areas, the slab thickness usually needs to be increased to 300-500mm. This not only increases the difficulty of manufacturing, loading and unloading, transportation, and installation, but also its high cost, making it difficult to widely use in actual projects.

[0006] Chinese patent application number CN113550475B discloses a prefabricated floor slab installation structure, comprising a crossbeam, on which are mounted several floor slab bodies, a first plug-in block, a first slot for inserting the first plug-in block, a second plug-in block slidingly mounted on the crossbeam, a second slot for inserting the second plug-in block, and a drive mechanism for sliding the second plug-in block toward the second slot. The first plug-in block is inserted into the first slot, allowing the floor slab to fit the crossbeam. The drive mechanism then slides the second plug-in block toward the second slot, inserting it into the second slot. This limits the vertical position of the floor slab body, preventing it from separating from the crossbeam, thereby improving the stability of the floor slab body and reducing the risk of the floor slab body shifting.

[0007] However, this technical solution still has at least the following drawbacks: in this technical solution, the prefabricated floor slab mounting structure can only achieve a secure installation of the floor slab to prevent it from separating from the beams, but cannot quickly install the floor slab and cannot be adjusted according to the size of the floor slab. In view of this, the present invention is proposed. Summary of the Invention

[0008] In order to solve the above technical problems, the present invention provides an installation structure and an assembled floor slab. The floor slab is installed by setting up an installation structure, and the installation structure can be folded and retracted for overall transportation. After arriving at the installation location, it can be directly unfolded to avoid the tediousness caused by frequent installation operations. At the same time, the bracket unit and the support unit can be adjusted so that the installation structure can adapt to floor slabs of various sizes; the floor slab is layered to give it different functions, and the thickness of the base layer with a load-bearing function can be reasonably distributed according to the stress conditions, so that the base layer can better cope with the stress concentrated area.

[0009] The technical solution adopted by the present invention to solve its technical problem is:

[0010] An installation structure and an assembled floor slab, comprising:

[0011] support beams;

[0012] A bracket unit is used to connect the support beam, the bracket unit includes a first support rod and a second support rod, and a rotation mechanism is provided between the first support rod and the second support rod to achieve folding of the first support rod and the second support rod;

[0013] The support unit is installed on the support beam to form a frame structure. The support unit includes a support frame. The bottom of both sides of the support frame are rotatably connected to support plates. The support plates are rotated open to support the floor slab.

[0014] As a preferred embodiment of the present invention, the rotating mechanism includes two symmetrically distributed rotating bodies, and a fixed block and a movable block are respectively fixedly installed at both ends of the two rotating bodies, and the fixed block is fixedly connected to the second support rod, and a pop-up mechanism is provided on the second support rod, and the pop-up mechanism is used to apply elastic force to separate the two rotating bodies. A movable groove is provided on the first support rod, and the rotating body is movably connected in the movable groove.

[0015] As a preferred embodiment of the present invention, the pop-up mechanism includes a sliding rod, which is movably inserted on both sides of the movable block, and a first spring is movably sleeved on the sliding rod. Grooves are provided on both sides of the inner wall of the second support rod, and the two ends of the sliding rod are fixedly mounted on the two ends of the inner wall of the groove. When the rotating body is in a closed state, the first support rod and the second support rod rotate relative to each other to fold the bracket unit. When the rotating body is in an open state, the first support rod and the second support rod cannot rotate to keep the bracket unit in an expanded state.

[0016] As a preferred embodiment of the present invention, the support unit also includes an adjustment mechanism, which includes an adjustment rod, and limit plugs are fixedly installed at both ends of the adjustment rod. The two ends of the adjustment rod are movably inserted in the support frame. The adjustment mechanism adjusts the length of the support unit through the relative sliding of the support frame and the adjustment rod. A positioning column is fixedly installed at the bottom of one end of the support frame, and a slide groove is provided on the support beam. The positioning column is slidably connected to the slide groove.

[0017] As a preferred embodiment of the present invention, a locking mechanism is provided on the support beam, and the locking mechanism includes a locking plate rotatably connected to the side wall of the support beam, and a tooth groove is provided on the locking plate. A second spring is installed on one side of the locking plate, and the elastic force of the second spring acts on the locking plate to make it open outward, and drives the tooth groove to press against the floor slab to keep the floor slab in a locked state.

[0018] A prefabricated floor slab is installed on the installation structure and includes a multi-layer component, wherein the multi-layer component includes a surface layer, an intermediate layer and a base layer, wherein the base layer is used to bear the weight of the floor slab, and the multi-layer component is arranged in a variable cross-section form. The thickness distribution of various parts of the base layer is adjusted according to the force requirements of the floor slab, and the thickness of the base layer corresponding to the force-bearing area is increased, and the thickness of the base layer corresponding to the non-force-bearing area is reduced.

[0019] As a preferred embodiment of the present invention, the base layer is configured such that the thickness at the edge position decreases toward the middle position, and the surface layer is configured such that the thickness at the edge position increases toward the middle position, and the amplitudes of the decrease and increase are consistent. The thickness of each part of the middle layer is consistent, and its upper surface and lower surface are aligned with the bottom of the surface layer and the top of the base layer, respectively.

[0020] As a preferred embodiment of the present invention, the surface layer is provided with a compression-resistant pattern, and the compression-resistant pattern is used to enhance the compressive strength of the surface layer;

[0021] The surface layer, the middle layer and the base layer are all provided with stress absorbing mechanisms, and the stress absorbing mechanisms include a spiral skeleton, which absorbs stress generated in the surface layer, the middle layer and the base layer through the rotation of the spiral skeleton.

[0022] As a preferred embodiment of the present invention, the base layer is made of ceramsite concrete board, the middle layer is made of foamed ceramics, and the surface layer is made of fiber calcium silicate board.

[0023] As a preferred embodiment of the present invention, the multi-layer component includes a surface layer and a lower layer, the surface layer is made of aerated fiber reinforced concrete, and the lower layer is made of ceramsite fiber reinforced concrete.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention installs the floor slab by providing a mounting structure, and the mounting structure can be folded and retracted for overall transportation, and can be directly unfolded after arriving at the installation location, thereby avoiding the tediousness caused by frequent installation operations. At the same time, the bracket unit and the support unit can be adjusted so that the mounting structure can adapt to floor slabs of various sizes.

[0026] The present invention layers the floor slab into layers of material to provide it with different functions. At the same time, the base layer used for the load-bearing function can have its thickness reasonably distributed according to the stress conditions, so that the base layer can better cope with the stress-concentrated area. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the installation structure of the present invention and the assembled floor slab in the installation state;

[0028] Figure 2 This is a schematic structural diagram of the installation structure of the present invention in an expanded state;

[0029] Figure 3 This is a schematic diagram of the mounting structure of the present invention in a folded state;

[0030] Figure 4 This is a schematic structural diagram of the support unit of the present invention in a folded state;

[0031] Figure 5 This is a schematic structural diagram of the bracket unit of the present invention in an expanded state;

[0032] Figure 6 This is a schematic diagram of the exploded structure of the bracket unit of the present invention;

[0033] Figure 7This is a structural diagram of the second support rod of the present invention;

[0034] Figure 8 This is a schematic diagram of the support unit structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the internal structure of the support unit of the present invention;

[0036] Figure 10 This is a structural diagram of the locking plate of the present invention;

[0037] Figure 11 This is a schematic diagram of the assembled floor structure in Example 2 of the present invention;

[0038] Figure 12 This is a schematic diagram of the cross-sectional structure of the assembled floor in Example 2 of the present invention;

[0039] Figure 13 Schematic diagram of the helical skeleton structure of the present invention;

[0040] Figure 14 This is a schematic diagram of the prefabricated floor structure in Example 3 of the present invention.

[0041] Reference numerals:

[0042] 100. Support beam;

[0043] 200, bracket unit; 201, first support rod; 202, second support rod; 203, fixed block; 204, groove; 205, slide bar; 206, first spring; 207, movable block; 208, rotating body; 209, movable slot;

[0044] 300, support unit; 301, support frame; 302, support plate; 303, positioning column; 304, slide; 305, adjustment rod; 306, limit plug;

[0045] 400, lock plate; 401, second spring; 402, tooth groove;

[0046] 500, surface layer; 501, middle layer; 502, base layer; 503, compression-resistant pattern; 504, spiral skeleton;

[0047] 600, surface layer; 601, lower layer. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0049] Example 1

[0050] like Figures 1 to 10 As shown, a mounting structure includes:

[0051] Support beam 100;

[0052] The bracket unit 200 is used to connect the support beam 100. The bracket unit 200 includes a first support rod 201 and a second support rod 202. A rotation mechanism is provided between the first support rod 201 and the second support rod 202 to achieve folding of the first support rod 201 and the second support rod 202.

[0053] The support unit 300 is installed on the support beam 100 to form a frame structure. The support unit 300 includes a support frame 301. The bottom of both sides of the support frame 301 is rotatably connected to support plates 302. The support plates 302 are rotated open to support the floor.

[0054] like Figures 4 to 7 As shown, in a specific embodiment, the rotation mechanism includes two symmetrically distributed rotating bodies 208, and a fixed block 203 and a movable block 207 are fixedly installed at both ends of the two rotating bodies 208, and the fixed block 203 is fixedly connected to the second support rod 202. The second support rod 202 is provided with a spring mechanism for applying an elastic force to separate the two rotating bodies 208. The first support rod 201 is provided with a movable groove 209, and the rotating body 208 is movably connected in the movable groove 209. In this configuration, the rotating body 208 is a semi-cylinder. The two rotating bodies 208 are assembled to form a complete cylinder, which can serve as the rotation axis of the first support rod 201 and the second support rod 202, so that the first support rod 201 and the second support rod 202 can rotate. When the two rotating bodies 208 are separated, the two rotating bodies 208 have multiple contact points with the movable groove 209 in the first support rod 201, so that the rotating body 208 cannot rotate in the first support rod 201.

[0055] like Figures 6 and 7 As shown, the ejection mechanism further includes a slide bar 205, which is movably inserted on both sides of the movable block 207. A first spring 206 is movably sleeved on the slide bar 205. Grooves 204 are provided on both sides of the inner wall of the second support rod 202. The two ends of the slide bar 205 are fixedly mounted on the inner walls of the grooves 204. When the rotating body 208 is in the closed state, the first support rod 201 and the second support rod 202 rotate relative to each other to fold the bracket unit 200. When the rotating body 208 is in the open state, the first support rod 201 and the second support rod 202 cannot rotate, so that the bracket unit 200 remains in the unfolded state. In this configuration, the elastic force of the first spring 206 acts on the movable block 207 to move the movable block 207. The movement of the movable block 207 causes one of the rotating bodies 208 to move and separate from the other rotating body 208.

[0056] like Figure 2 、 Figure 3 、 Figure 8 、 Figure 9 As shown, the support unit 300 further includes an adjustment mechanism, which includes an adjustment rod 305, with limit plugs 306 fixedly installed at both ends of the adjustment rod 305. The two ends of the adjustment rod 305 are movably inserted into the support frame 301. The adjustment mechanism adjusts the length of the support unit 300 through the relative sliding of the support frame 301 and the adjustment rod 305. A positioning column 303 is fixedly installed at the bottom of one end of the support frame 301. A slide groove 304 is provided on the support beam 100, and the positioning column 303 is slidably connected to the slide groove 304. In this configuration, a support frame 301 is provided at both ends of each adjustment rod 305. When the support frame 301 at one end is moved to a certain position by one end of the adjustment rod 305, the limit plug 306 at the end of the adjustment rod 305 is pressed against, so that the support frame 301 cannot move further, thereby preventing the support frame 301 from separating from the adjustment rod 305.

[0057] like Figure 10 As shown, the support beam 100 is further provided with a locking mechanism, which includes a locking plate 400 rotatably connected to the side wall of the support beam 100, and a tooth groove 402 is formed on the locking plate 400. A second spring 401 is installed on one side of the locking plate 400. The elastic force of the second spring 401 acts on the locking plate 400 to cause it to expand outward, and drives the tooth groove 402 to press against the floor board to keep the floor board in a locked state. In this arrangement, when the floor board is installed, the side wall of the floor board presses inward against the locking plate 400, and the elastic force of the second spring 401 acts on the locking plate 400 to press against the floor board. Specifically, the locking plate 400 is installed on both sides of the support beam 100 located in the middle, and the locking plates 400 on both sides share the second spring 401. The support beams 100 located on both sides are only provided with a locking plate 400 on one side.

[0058] The implementation principle of a mounting structure of this embodiment is as follows: when the mounting structure is unfolded, the support beams 100 are directly unfolded manually. At this time, the distance between two adjacent support beams 100 increases, so that the distance between the first support rod 201 and the second support rod 202 increases until the first support rod 201 and the second support rod 202 are in a collinear state;

[0059] When the first support rod 201 and the second support rod 202 are not collinear, the two rotating bodies 208 are in a spliced ​​state and form a cylinder under the action of the moving groove 209, so that the first support rod 201 and the second support rod 202 can rotate smoothly. When the first support rod 201 and the second support rod 202 are collinear, the moving groove 209 no longer presses against the rotating body 208, so that the elastic force of the first spring 206 acts on the movable block 207 to separate the two rotating bodies 208. At this time, the two rotating bodies 208 cannot be spliced ​​into a cylinder, and the two are located in the moving groove 209, so that the first support rod 201 and the second support rod 202 cannot continue to rotate after entering the collinear state, thereby maintaining the shape of the installation structure. At the same time, the rotating body 208 can still slide in the moving groove 209, so that the first support rod 201 and the second support rod 202 can slide relative to each other, thereby adjusting the distance between the two adjacent support beams 100 to adapt to floor slabs of different sizes;

[0060] When the support beam 100 is unfolded, the support frame 301 is pulled into alignment through the slide groove 304 and the positioning column 303. At this time, the support plate 302 loses the support of the support beam 100 and rotates and unfolds, thereby supporting the floor slab. At the same time, the mutual sliding function of the support frame 301 and the adjustment rod 305 enables it to adapt to the spacing of the support beam 100. By adjusting the position of the positioning column 303 in the slide groove 304, the position of the two adjacent support frames 301 can be changed to adapt to floor slabs of different sizes.

[0061] Example 2

[0062] like Figures 11 to 13 As shown, an assembled floor slab is installed on a mounting structure and includes a multi-layer component, wherein the multi-layer component includes a surface layer 500, an intermediate layer 501, and a base layer 502. The multi-layer component is provided with a variable cross-section form, and the thickness ratio of the surface layer 500, the intermediate layer 501, and the base layer 502 is adjusted according to the force requirements of the floor slab;

[0063] The surface layer 500 is provided with a compression-resistant pattern 503, which is used to enhance the compression strength of the surface layer 500;

[0064] The surface layer 500 , the middle layer 501 and the base layer 502 are all provided with stress absorption mechanisms. The stress absorption mechanisms include a spiral skeleton 504 , which absorbs stress generated inside the surface layer 500 , the middle layer 501 and the base layer 502 through the rotation of the spiral skeleton 504 .

[0065] The compression-resistant pattern 503 of the surface layer 500 allows the surface layer 500 to absorb the pressure through the deformation ability of the compression-resistant pattern 503 when subjected to external force. The spiral skeleton 504 arranged inside each layer absorbs the stress generated through its own torsional deformation when each layer is subjected to stress, thereby preventing the stress from causing damage to the floor slab. At the same time, the spiral skeleton 504 can further enhance the strength of the floor slab.

[0066] like Figures 11 to 13 As shown, in a specific embodiment, the base layer 502 is used to bear the weight of the floor slab. The base layer 502 is configured such that its thickness decreases from the edges toward the middle, while the surface layer 500 is configured such that its thickness increases from the edges toward the middle, with the magnitude of the decrease and increase being consistent. The thickness of each portion of the middle layer 501 is uniform, and its upper and lower surfaces are aligned with the bottom of the surface layer 500 and the top of the base layer 502, respectively. The base layer 502 is constructed of a ceramsite concrete board, the middle layer 501 is constructed of foamed ceramic, and the surface layer 500 is constructed of a fiber-calcium silicate board.

[0067] Fiber calcium silicate board serves as the protective base layer. It is mainly composed of siliceous and calcareous materials, reinforced with plant fibers or mineral fibers, and is made through autoclaving and curing. It has a tough surface, dense texture, and is waterproof and anti-seepage. Foamed ceramics are made from ceramic waste through crushing, batching, and high-temperature foaming. The interior has a honeycomb-shaped closed pore structure, which provides high-efficiency thermal insulation and sound insulation. The middle layer 501 composed of foamed ceramics is the core functional layer of the floor slab. Ceramsite concrete slabs use lightweight ceramsite as aggregate, mixed with cement and sand for casting. They have high compressive strength and can bear loads. The low density of ceramsite can significantly reduce the overall deadweight of the floor slab and reduce the load on other building structures. The base layer 502 composed of ceramsite concrete slabs is the core load-bearing layer.

[0068] The base layer 502 serves as the load-bearing layer of the floor slab, and its stress-bearing positions are dispersed at the edge positions of the base layer 502. Setting the thickness of the edge positions to be greater than that of the middle positions can effectively bear more loads. The middle layer 501 serves as the core functional layer, and setting its thickness to be consistent at various locations can ensure that the thermal insulation and sound insulation and noise reduction effects of various parts of the middle layer 501 are consistent.

[0069] The assembled floor slab in this embodiment can be used for the paving of slope roofs and rooftop floors. The bottom plate is a ceramsite reinforced concrete slab, which is waterproof and anti-seepage, lightweight and high-strength, with a bulk density of 1.2-1.5t / m 3 (The steel and density are determined by the span and load); the upper layer is a foamed ceramic board, which is waterproof, seepage-proof, heat-insulating and sound-insulating, with a bulk density of 0.4t / m 3 The surface is made of fiber calcium silicate board, which is tough, durable, waterproof and anti-seepage.

[0070] Example 3

[0071] This embodiment adopts a method different from the above embodiment.

[0072] like Figure 14 As shown, in a specific embodiment, the multi-layer component includes a surface layer 600 and a lower layer 601. The surface layer 600 is made of aerated fiber reinforced concrete, and the lower layer 601 is made of ceramsite fiber reinforced concrete.

[0073] In this embodiment, the surface layer 600 is aerated fiber reinforced concrete, which is made by mixing high-silicon calcium raw materials with inorganic fibers and water to foam and initially set, then adding fine reinforcement and slicing it into a high-temperature autoclave. After 12 hours of steam curing, it becomes a strong, tough, heat-insulating and sound-insulating lightweight concrete board, weighing 600 to 1000 kg / m 3 The lower layer, 601, is made of ceramsite concrete. Tailings or discarded ceramics are sorted and extracted, ground into a powder, and then hydrated to form a slurry. This slurry is then calcined in a kiln at 1200°C to create high-strength, ultra-light, hollow, multi-layered granules. These replace hard rock, are then mixed with cement and quartz sand for reinforcement, and cut into panels. They are then factory-cured at a constant temperature to form a 1000-1500kg bulk density. Finally, the two panels are glued together under high pressure. This floor slab combines the lightweight, easy-to-work, dense, and tough surface layer, 600, with the high-strength, fire-resistant, lightweight, and smooth lower layer, 601. Their combined properties offer sound insulation, thermal insulation, waterproofing, and corrosion resistance.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A mounting structure, characterized in that: include: Support beam (100); A bracket unit (200) is used to connect the support beam (100), the bracket unit (200) comprising a first support rod (201) and a second support rod (202), a rotation mechanism being provided between the first support rod (201) and the second support rod (202), and the first support rod (201) and the second support rod (202) being folded by the rotation mechanism; A support unit (300) is installed on a support beam (100) to form a frame structure. The support unit (300) includes a support frame (301). The bottoms of both sides of the support frame (301) are rotatably connected to support plates (302). The support plates (302) are rotated to open to support the floor slab.

2. The installation structure according to claim 1, characterized in that: The rotating mechanism comprises two symmetrically distributed rotating bodies (208), and a fixed block (203) and a movable block (207) are respectively fixedly installed at both ends of the two rotating bodies (208), and the fixed block (203) is fixedly connected to the second support rod (202), and a spring-opening mechanism is provided on the second support rod (202), and the spring-opening mechanism is used to apply elastic force to separate the two rotating bodies (208), and a movable groove (209) is provided on the first support rod (201), and the rotating body (208) is movably connected in the movable groove (209).

3. The installation structure according to claim 2, characterized in that: The pop-up mechanism includes a slide rod (205), the slide rod (205) is movably inserted on both sides of the movable block (207), a first spring (206) is movably sleeved on the slide rod (205), grooves (204) are provided on both sides of the inner wall of the second support rod (202), and both ends of the slide rod (205) are fixedly mounted on the two ends of the inner wall of the groove (204). When the rotating body (208) is in a closed state, the first support rod (201) and the second support rod (202) rotate relative to each other so that the bracket unit (200) is folded. When the rotating body (208) is in an open state, the first support rod (201) and the second support rod (202) cannot rotate so that the bracket unit (200) remains in an unfolded state.

4. The installation structure according to claim 3, characterized in that: The support unit (300) further includes an adjustment mechanism, the adjustment mechanism including an adjustment rod (305), two ends of the adjustment rod (305) are fixedly mounted with limit plugs (306), the two ends of the adjustment rod (305) are movably inserted into the support frame (301), the adjustment mechanism adjusts the length of the support unit (300) by relative sliding between the support frame (301) and the adjustment rod (305), a positioning column (303) is fixedly mounted on the bottom of one end of the support frame (301), a slide groove (304) is provided on the support beam (100), and the positioning column (303) is slidably connected to the slide groove (304).

5. The installation structure according to claim 4, characterized in that: The support beam (100) is provided with a locking mechanism, comprising a locking plate (400) rotatably connected to a side wall of the support beam (100), and a tooth groove (402) is provided on the locking plate (400). A second spring (401) is installed on one side of the locking plate (400), and the elastic force of the second spring (401) acts on the locking plate (400) to cause it to open outward, and drives the tooth groove (402) to press against the floor slab so that the floor slab remains in a locked state.

6. An assembled floor slab, installed on the installation structure according to any one of claims 1 to 5, characterized in that: The multi-layer component comprises a surface layer (500), an intermediate layer (501) and a base layer (502), wherein the base layer (502) is used to bear the weight of the floor slab, and the multi-layer component is provided with a variable cross-section form, and the thickness distribution of each part of the base layer (502) is adjusted according to the force requirement of the floor slab, so that the thickness of the position corresponding to the force-bearing area of ​​the base layer (502) is increased, and the thickness of the position corresponding to the non-force-bearing area of ​​the base layer (502) is reduced.

7. The assembled floor slab according to claim 6, characterized in that: The base layer (502) is configured such that the thickness at the edge decreases toward the middle, the surface layer (500) is configured such that the thickness at the edge increases toward the middle, and the amplitudes of the decrease and increase are consistent. The thickness of each part of the middle layer (501) is consistent, and its upper surface and lower surface are aligned with the bottom of the surface layer (500) and the top of the base layer (502), respectively.

8. The assembled floor slab according to claim 7, characterized in that: The surface layer (500) is provided with a compression-resistant pattern (503), and the compression-resistant pattern (503) is used to enhance the compression strength of the surface layer (500); The surface layer (500), the middle layer (501) and the base layer (502) are all provided with stress absorbing mechanisms, and the stress absorbing mechanisms include a spiral skeleton (504) that absorbs stress generated inside the surface layer (500), the middle layer (501) and the base layer (502) through the rotation of the spiral skeleton (504).

9. The assembled floor slab according to claim 8, characterized in that: The base layer (502) is made of ceramsite concrete board, the middle layer (501) is made of foamed ceramics, and the surface layer (500) is made of fiber calcium silicate board.

10. The assembled floor slab according to claim 6, characterized in that: The multi-layer component comprises a surface layer (600) and a lower layer (601), wherein the surface layer (600) is made of aerated fiber-reinforced concrete, and the lower layer (601) is made of ceramsite fiber-reinforced concrete.

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